75 results on '"Tibor Flaskó"'
Search Results
2. Expression of hsa-miRNA-15b, -99b, -181a and Their Relationship to Angiogenesis in Renal Cell Carcinoma
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József Király, Erzsébet Szabó, Petra Fodor, Anna Vass, Mahua Choudhury, Rudolf Gesztelyi, Csaba Szász, Tibor Flaskó, Nikoletta Dobos, Barbara Zsebik, Ákos József Steli, Gábor Halmos, and Zsuzsanna Szabó
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kidney cancer ,microRNA ,hsa-miR-99b-5p ,hsa-miR-15b-5p ,hsa-miR-181a-5p ,prognosis ,Biology (General) ,QH301-705.5 - Abstract
Background: MicroRNAs (miRNAs) play a regulatory role in various human cancers. The roles of hsa-miR-15a-5p, hsa-miR-99b-5p, and hsa-miR-181a-5p have not been fully explored in the angiogenesis of renal cell carcinoma (RCC). Aims: The present study aimed to evaluate the expression of these miRNAs in tumorous and adjacent healthy tissues of RCC. Methods: Paired tumorous and adjacent normal kidney tissues from 20 patients were studied. The expression levels of hsa-miR-15b-5p, hsa-miR-99b-5p, and hsa-miR-181a-5p were quantified by TaqMan miRNA Assays. Putative targets were analyzed by qRT-PCR. Results: Significant downregulation of all three miRNAs investigated was observed in tumorous samples compared to adjacent normal kidney tissues. Spearman analysis showed a negative correlation between the expression levels of miRNAs and the pathological grades of the patients. Increased expression of vascular endothelial growth factor-A (VEGF-A) and hypoxia-inducible factor-1α (HIF-1α), a tissue inhibitor of metalloproteinases-1 (TIMP-1), was observed in tumorous samples compared to adjacent normal tissues. Depletion of tissue inhibitors of metalloproteinase-2 (TIMP-2) and metalloproteinase-2 (MMP-2) was detected compared to normal adjacent tissues. The examined miRNAs might function as contributing factors to renal carcinogenesis. However, more prospective studies are warranted to evaluate the potential role of miRNAs in RCC angiogenesis.
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- 2024
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3. Ilixadencel, a Cell-based Immune Primer, plus Sunitinib Versus Sunitinib Alone in Metastatic Renal Cell Carcinoma: A Randomized Phase 2 Study
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Magnus Lindskog, Anna Laurell, Anders Kjellman, Bohuslav Melichar, Pablo Maroto Rey, Henryk Zieliński, Felipe Villacampa, Pierre Bigot, Bajory Zoltan, Omi Parikh, David Vazquez Alba, Åsa Jellvert, Tibor Flaskó, Enrique Gallardo, Maria José Ribal Caparrós, Gunta Purkalne, Peter Suenaert, Alex Karlsson-Parra, and Börje Ljungberg
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Allogeneic dendritic cells ,Ilixadencel ,Intratumoral administration ,Metastatic renal cell carcinoma ,Off the shelf ,Phase 2 trial ,Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: The prognosis of patients with synchronous metastatic renal cell carcinoma (mRCC) is poor. Whereas single-agent tyrosine kinase inhibition (TKI) is clearly insufficient, the effects can be enhanced by combinations with immune checkpoint inhibitors. Innovative treatment options combining TKI and other immune-stimulating agents could prove beneficial. Objective: To evaluate the clinical effects on metastatic disease when two doses of allogeneic monocyte-derived dendritic cells (ilixadencel) are administrated intratumorally followed by nephrectomy and treatment with sunitinib compared with nephrectomy and sunitinib monotherapy, in patients with synchronous mRCC. Design, setting, and participants: A randomized (2:1) phase 2 multicenter trial enrolled 88 patients with newly diagnosed mRCC to treatment with the combination ilixadencel/sunitinib (ILIXA/SUN; 58 patients) or sunitinib alone (SUN; 30 patients). Outcome measurements and statistical analysis: The primary endpoints were 18-mo survival rate and overall survival (OS). A secondary endpoint was objective response rate (ORR) assessed up to 18 mo after enrollment. Statistic evaluations included Kaplan-Meier estimates, log-rank tests, Cox regression, and stratified Cochran-Mantel-Haenszel tests. Results and limitations: The median OS was 35.6 mo in the ILIXA/SUN arm versus 25.3 mo in the SUN arm (hazard ratio 0.73, 95% confidence interval 0.42–1.27; p = 0.25), while the 18-mo OS rates were 63% and 66% in the ILIXA/SUN and SUN arms, respectively. The confirmed ORR in the ILIXA/SUN arm were 42.2% (19/45), including three patients with complete response, versus 24.0% (six/25) in the SUN arm (p = 0.13) without complete responses. The study was not adequately powered to detect modest differences in survival. Conclusions: The study failed to meet its primary endpoints. However, ilixadencel in combination with sunitinib was associated with a numerically higher, nonsignificant, confirmed response rate, including complete responses, compared with sunitinib monotherapy. Patient summary: We studied the effects of intratumoral vaccination with ilixadencel followed by sunitinib versus sunitinib only in a randomized phase 2 study. The combination treatment showed numerically higher numbers of confirmed responses, suggesting an immunologic effect.
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- 2022
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4. Expression of Luteinizing Hormone-Releasing Hormone (LHRH) and Type-I LHRH Receptor in Transitional Cell Carcinoma Type of Human Bladder Cancer
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Zsuzsanna Szabó, Balázs Dezső, Klára Fodor, Krisztián Szegedi, Tibor Flaskó, Erzsébet Szabó, Gábor Oláh, Éva Sipos, Nikoletta Dobos, János Gardi, Andrew V. Schally, and Gábor Halmos
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LHRH receptor ,targeted therapy ,bladder cancer ,radioligand binding assay ,immunohistochemistry ,Western Blot ,Organic chemistry ,QD241-441 - Abstract
Bladder cancer (BC) is the tenth most frequently detected cancer in both sexes. Type-I luteinizing hormone-releasing hormone (LHRH) receptor (LHRH-R-I) is expressed not only in the pituitary, but also in several types of cancer disease. There are few data about LHRH-R-I expression in human BC. This study aimed to investigate the expression of LHRH and LHRH-R-I in the transitional cell carcinoma (TCC) type of human BC. RNA was extracted from 24 human bladder tumor specimens and three BC cell lines. RT-PCR was performed to detect mRNA for LHRH and LHRH-R-I. The protein of LHRH-R-I was further studied by immunohistochemistry (IHC), ligand competition assay, and Western Blot. PCR products of LHRH were found in 19 of 24 (79%) specimens and mRNA of LHRH-R-I was detected in 20 of 24 specimens (83%). Positive immunostaining for LHRH-R-I with different expression intensity was found in all samples examined, showing negative correlation with TCC grade. Radioligand binding studies also showed the presence of specific LHRH-R-I and high affinity binding of LHRH analogs. The high incidence of LHRH-R in BC suggests that it could serve as a molecular target for therapy of human BC with cytotoxic LHRH analogs or modern powerful antagonistic analogs of LHRH.
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- 2021
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5. Very Late Relapse of Testicular Tumour in Combination with Renal Cancer and Their Retroperitoneoscopic Removal
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Mihály Murányi, Morshed Ali Salah, Béla Tállai, Mátyás Benyó, and Tibor Flaskó
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Medicine - Abstract
Late relapse of a testicular cancer is an uncommon occurrence. We report a case of late relapse of a testicular tumour combined with a renal cancer and their successful removal with retroperitoneoscopy. The 36-year-old patient underwent left orchiectomy, retroperitoneal lymph node dissection, and chemotherapy, because of mixed tumor including teratoma and embryonal carcinoma. 18 years after the successful primary therapy elevated serum alpha-fetoprotein level had been confirmed, then MRI and PET-CT scans demonstrated a 30 mm left renal mass and 22 mm retroperitoneal lymph node above the bifurcation of the left common iliac artery. We performed retroperitoneoscopic lymph node dissection and left renal tumour resection in the same session. The histology revealed embryonal carcinoma for the retroperitoneal lymph node and renal cell carcinoma for the left renal mass. We can conclude that late followup of patients with testicular tumour is important. Retroperitoneoscopy is feasible approach for the removal of retroperitoneal lymph node metastasis and resection of renal tumor.
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- 2011
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6. A hímvessző epithelioid haemangiomája
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Mihály Murányi, Chie Yi-Che Chang, Mátyás Benyó, and Tibor Flaskó
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General Medicine - Abstract
Az epithelioid haemangioma egy jóindulatú éreredetű tumor. Komplett eltávolítás esetén helyi kiújulásra nem kell számítani, áttétet nem képez. A hímvesszőben különösen ritkán alakul ki, az angol nyelvű szakirodalomban mindössze 33 esetről számoltak be. Közleményünkben egy 64 éves férfi esetét ismertetjük, akinél a vena dorsalis penisben igazolódott epithelioid haemangioma. A hazai irodalomban korábban nem számoltak be a hímvesszőben elhelyezkedő epithelioid haemangiomáról. A beteg kivizsgálása egy, a hímvessző tövében lévő csomó miatt indult, mely merevedés során fájdalmat okozott. Fizikális vizsgálata a hímvessző dorsalis oldalán a középvonalban mobilis, nyomásérzékeny térfoglalást igazolt. Ultrahangos vizsgálata a bőr és a tunica albuginea között elhelyezkedő, jól körülhatárolt, homogén, színes Doppler-vizsgálattal keringést nem mutató 10 mm-es térfoglalást mutatott ki. Az elváltozást spinalis érzéstelenítésben kimetszettük. A hímvessző dorsalis oldalán ejtett hosszanti metszés után a vena dorsalis penist körbepreparáltuk, a makroszkóposan thrombusnak kinéző elváltozás alatt és fölött a vénát lekötöttük, majd a tumort az érintett vénaszakasszal együtt eltávolítottuk. A kórszövettani vizsgálat az eltávolított vénafalhoz tapadó epithelioid haemangiomát mutatott ki ép sebészi széllel. A műtét után három hónappal a fájdalmas merevedés megszűnt, a beteg Merevedés Minőségi Mutatója 21 volt. Négyéves megfigyelés alatt kiújulás vagy áttét nem alakult ki. A hímvessző epithelioid haemangiomájának kezeléséhez elengedhetetlen a penis subcutan szöveteiben előforduló térfoglalások differenciáldiagnosztikájának ismerete, ezért ezt részletesen ismertetjük. Orv Hetil. 2023; 164(21): 836–840.
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- 2023
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7. Potential Role of VHL, PTEN, and BAP1 Mutations in Renal Tumors
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Halmos, Krisztián Szegedi, Zsuzsanna Szabó, Judit Kállai, József Király, Erzsébet Szabó, Zsuzsanna Bereczky, Éva Juhász, Balázs Dezső, Csaba Szász, Barbara Zsebik, Tibor Flaskó, and Gábor
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renal tumor ,renal cell carcinoma (RCC) ,angiomyolipoma (AML) ,mutation ,genetic polymorphism ,VHL ,PTEN ,BAP1 - Abstract
The genetic profiling of renal tumors has revealed genomic regions commonly affected by structural changes and a general genetic heterogeneity. The VHL, PTEN, and BAP1 genes are often mutated in renal tumors. The frequency and clinical relevance of these mutations in renal tumors are still being researched. In our study, we investigated VHL, PTEN, and BAP1 genes and the sequencing of 24 samples of patients with renal tumors, revealing that VHL was mutated at a noticeable frequency (25%). Six of the investigated samples showed mutations, and one genetic polymorphism (rs779805) was detected in both heterozygote and homozygote forms. PTEN gene mutation was observed in only one sample, and one specimen showed genetic polymorphism. In the case of the BAP1 gene, all of the samples were wild types. Interestingly, VHL mutation was detected in two female patients diagnosed with AML and in one with oncocytoma. We assume that VHL or PTEN mutations may contribute to the development of human renal cancer. However, the overall mutation rate was low in all specimens investigated, and the development and prognosis of the disease were not exclusively associated with these types of genetic alterations.
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- 2023
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8. Effect of Neoadjuvant Hormonal Treatment on the Necessity of Secondary Radiotherapy in Patients Undergoing Radical Prostatectomy for High-Risk Prostate Cancer
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Zsolt Bacsó, Csaba Berczi, Janos Docs, Tibor Flaskó, and Ben Thomas
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Cultural Studies ,medicine.medical_specialty ,business.industry ,Prostatectomy ,medicine.medical_treatment ,Religious studies ,Urology ,medicine.disease ,Radiation therapy ,Prostate cancer ,medicine ,In patient ,business ,Hormone - Published
- 2021
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9. Kis méretű vesedaganatok patológiai és biológiai jellemzőinek elemzése a tumorméret alapján
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Tibor Flaskó, László Bidiga, Judit T. Nagy, Zsolt Bacsó, and Csaba Berczi
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Mean diameter ,Tumor size ,business.industry ,Mean age ,General Medicine ,Benign lesion ,Malignancy ,medicine.disease ,Benign tumor ,Renal cell carcinoma ,medicine ,Tumor Grading ,Nuclear medicine ,business - Abstract
Összefoglaló. Bevezetés: A kis méretű vesedaganatok között lényegesen gyakoribbak a benignus elváltozások, és a kis malignus tumorok biológiai tulajdonságai is kedvezőbbek, mint a nagyobb daganatokéi. Célkitűzés: Szerzők a kis méretű vesetumorok tulajdonságait vizsgáltuk különböző alcsoportokban. Módszer: 2000. január 1. és 2015. január 1. között 1272 beteg esetén végeztünk műtétet vesedaganat miatt. Közülük 496 betegnek volt kis méretű vesetumora. A betegek átlagéletkora 59 ± 12 év volt. A betegeket a tumorméret alapján három csoportba osztottuk. Az 1. csoportban a daganat mérete ≤4 cm, a 2. csoportban ≤3 cm és a 3. csoportban ≤2 cm volt. Eredmények: Az eltávolított daganat nagysága átlagosan 29 ± 8 mm volt. A szövettan 418 esetben (84%) malignus, míg 78 alkalommal (16%) benignus elváltozást mutatott. A 2 cm-nél kisebb daganatoknál malignitás csak az esetek 73,2%-ában fordult elő. A malignus és a benignus tumorok méretében szignifikáns eltérés volt (p = 0,008). Rosszul differenciált daganat – grade 3. és 4. – az esetek 10,8%-ában, 14,4%-ában, illetve 20,7%-ában volt jelen, amikor a tumorméret kisebb mint 2 cm, 2,1–3 cm, illetve 3,1–4,0 cm volt. A vesecarcinomáknál az átlagosan 10 éves utánkövetési idő alatt progresszió az esetek 5,5%-ában fordult elő. Következtetés: A kis méretű vesetumor az összes vesedaganat 39%-át tette ki. Ezek nagy része malignus volt, és benignus elváltozás az esetek 16%-ában fordult elő. A malignitás előfordulása a 2 cm-nél kisebb tumoroknál volt a legalacsonyabb. A tumorméret szoros összefüggést mutatott a malignitás gyakoriságával és a daganat differenciáltságával. A kedvező patológiai és biológiai eredmények alapján a 2 cm alatti daganatoknál felmerül annak lehetősége, hogy esetükben az aktív követés vagy minimálisan invazív kezelés alkalmazása kerüljön előtérbe. Orv Hetil. 2021; 162(42): 1693–1697. Summary. Introduction: The incidence of benign lesions is more common in small renal masses (SRMs) and biological behavior of small malignancies is better compared to larger ones. Objective: The authors measured the characteristics of SRMs in different subgroups. Method: From January 1, 2000 to January 1, 2015, 1272 patients underwent surgery for renal tumors. In 496 of the 1272 cases, the patients had SRMs. The mean age of the patients was 59 ± 12 years. Based on the sizes, the SRMs were divided into three groups. The sizes of the renal tumors were ≤4 cm in Group 1, ≤3 cm in Group 2 and ≤2 cm in Group 3. Results: The mean diameter of the removed SRMs was 29 ± 8 mm. Histology confirmed renal cell carcinoma in 418 cases (84%), while benign tumor was present in 78 patients (16%). However, with the tumor size ≤2 cm, malignancy was detected in 73.2% of the cases. There was a significant difference in the sizes of the malignant and the benign masses (p = 0.008). Grade 3 or 4 tumors were present in 10.8%, 14.4% and 20.7% when the tumor size was ≤2 cm, 2.1 to 3 cm, and 3.1 to 4 cm in diameter, respectively. During the mean 10-year follow-up period, tumor progression was detected only in 5.5% of malignancies. Conclusion: In 39% of all cases, the patients had SRMs. The majority of SRMs were malignant, and benign lesion occurred only in 16% of the cases. The incidence of malignant tumors was the lowest when the size of SRMs was ≤2 cm. The size of the tumor was highly associated with probability of malignancy and tumor grading. Based on the favorable pathological and biological results in tumors below 2 cm, active surveillance or minimally invasive treatment could be the preferred management. Orv Hetil. 2021; 162(42): 1693–1697.
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- 2021
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10. A hímvessző bőrének helyreállítása szklerotizáló lipogranuloma okozta deformitás miatt
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Tibor Flaskó, Mihály Murányi, Zoltán Kiss, Antal Farkas, and Gyula Drabik
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Lipogranuloma ,Penile Shaft ,medicine.medical_specialty ,business.industry ,Scrotal flap ,Penile skin ,Scrotal skin ,General Medicine ,Sclerosing lipogranuloma ,Surgery ,medicine.anatomical_structure ,Scrotum ,medicine ,business ,Penis - Abstract
Összefoglaló. Bevezetés: A hímtag körméretének növelése érdekében, az annak bőre alá bejuttatott zsírnemű anyag szklerotizáló lipogranulomát okoz. Hazánkban a szklerotizáló lipogranuloma okozta hímvessző-deformitások kezelésének legelterjedtebb módszere a két ülésben végzett bőrpótlás. Ennek ellenére a magyar nyelvű szakirodalomban kevés adat áll rendelkezésre a kétüléses műtét eredményességéről és várható szövődményeiről. Célkitűzés: Tanulmányunkban a szklerotizáló lipogranuloma okozta deformitások miatti – két ülésben végzett – hímvesszőbőr-helyreállítással szerzett tapasztalatainkról, a műtét után kialakuló szövődményekről számolunk be retrospektív adatgyűjtés alapján. Módszer: 2008. március 1. és 2020. március 1. között a Debreceni Egyetem Urológiai Klinikáján 17 betegen végeztünk kétüléses hímvesszőbőr-helyreállító műtétet. A szklerotizáló lipogranuloma által érintett bőrt teljes mértékben eltávolítottuk, majd a lecsupaszított hímtagot a herezacskó elülső felszínén kialakított subcutan csatornába helyeztük. A második ülés során a herezacskó bőre alá ültetett hímvesszőt felszabadítottuk. Eredmények: A Clavien–Dindo-beosztás szerint az első ülés után három, a második ülés után egy I. gradusú szövődmény alakult ki; II–V. gradusú szövődményt nem figyeltünk meg. Azon 9 beteg közül, akik mindkét ülésen átestek, 7 beteg elégedett volt a beavatkozás eredményével, 2 beteg korrekciós műtéten esett át fél és 9 évvel a második ülés után. A 8 beteg közül, akik csak ez első ülést vállalták, egy korrekciós műtét történt 4 hónappal a műtét után. Következtetés: A hímvessző szklerotizáló lipogranulomája esetén az érintett bőrterület kimetszése után hímvesszőbőr-helyreállítás szükséges. A herezacskó-bőrlebeny alkalmazásának előnye, hogy a herezacskó színe és elaszticitása a hímvesszőbőréhez hasonló, a tapintás- és erogén érzet megmarad. A kétüléses hímvesszőbőr-helyreállítás kevés szövődménnyel, plasztikai sebészeti jártasság nélkül elvégezhető. Orv Hetil. 2021; 162(35): 1413–1417. Summary. Introduction: Subcutaneous injection of liquid fatty materials to enhance penile girth induce sclerosing lipogranuloma of the penis. In spite of its well known severe consequences there has been a persistent use of this practice in non-medical circumstances. Objective: The aim of this paper is to present our observations with staged penile skin reconstruction for sclerosing lipogranuloma and to evaluate postoperative complications in a retrospective manner. Method: Between 2008 and 2020, 17 patients underwent surgery to treat sclerosing lipogranuloma of the penis by staged penile skin reconstruction at our department. Complete exscision of the involved tissue was performed, then the denuded penile shaft was inserted into a subcutaneous channel on the anterior side of the scrotum during the first stage. The second stage of reconstruction consisted of releasing the penile shaft from the scrotum. The second stage was performed merely on 9 in 17 patients. Results: According to the Clavien–Dindo classification system, 3 grade I and 1 grade I complications occurred in the postoperative period after the first and second stage, respectively. Grade II–V complications were not observed. 7 of 9 patients who underwent both stages were satisfied with the final result, 2 patients had minor correction surgery 6 months and 9 years following the second stage. 1 of 8 patients who underwent only the first stage had minor correction surgery 4 months following the operation. Conclusion: In case of sclerosing lipogranuloma of the penis, excision of the affected tissue and reconstruction of the penile skin are indicated. Advantages of using scrotal skin flaps are that colour and elasticity of the scrotal skin are similar to penile skin, erogenous sensation of the scrotal flap remains intact. Applying staged penile skin reconstruction with scrotal skin flap has the advantage of few postoperative complications and it is easy to perform. Orv Hetil. 2021; 162(35): 1413–1417.
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- 2021
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11. Veseátültetés utáni sebészeti szövődmények előfordulása a Clavien-beosztás szerint, különös tekintettel a húgyvezeték-anastomosis típusára
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Richárd Veisz, Judit Tóth, Lóránt Illésy, Márton Kovács, Gergely Zádori, Balázs Nemes, Ivett Belán, D. Kovács, Zsolt Kanyári, Tibor Flaskó, R. Fedor, and Gergő József Szőllősi
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Interventional radiology ,General Medicine ,Anastomosis ,medicine.disease ,Delayed Graft Function ,Surgery ,Ureter ,medicine.anatomical_structure ,Renal transplant ,Medicine ,Complication ,business ,Kidney transplantation ,Severe complication - Abstract
Összefoglaló. Bevezetés: Veseátültetést követően a graft és a beteg túlélésére hatással lehetnek a posztoperatív intervenciót igénylő szövődmények. Fontos szempont a műtéttechnikai eredményesség monitorozása. Többek között az irodalomban számos lehetőség ismert a veseátültetés sarokpontjának számító ureteranastomosis elkészítésére is, de az éranastomosisok technikája szintén döntő lehet. Célkitűzés és módszer: Retrospektíven vizsgáltuk a 2010 és 2020 között végzett veseátültetéseket a Debreceni Egyetem Sebészeti Klinikáján. Célul tűztük ki a sebészeti szövődmények vizsgálatát, melyeket rendszereztünk, a módosított Clavien-féle beosztás alapján. A legnagyobb figyelmet az ureteranastomosisokra fordítottuk. Minden betegnél az adott kategóriában legsúlyosabb szövődményt vettük alapul a beosztáshoz. A minimális utánkövetési idő 1 év volt. Az adatokat az SPSS statisztikai program segítségével elemeztük. Eredmények: A vizsgált periódusban 406 veseátültetés történt, melyből 24,4% (n = 99) vesetranszplantáltnál alakult ki intervenciós (sebészeti, radiológiai, urológiai) szövődmény. A betegek átlagéletkora 49,5 ± 13,7 év, 60,8% férfi volt. A kumulatív mortalitás 10,1% volt. Grade 4-es szövődmény a betegek 6,9%-ánál (n = 28), Grade 3-as a 6,7%-ánál (n = 27), Grade 2-es a 3%-ánál (n = 12), Grade 1-es a 7,9%-ánál (n = 32) jelentkezett. A veseátültetés után 20,4%-ban (n = 83) alakult ki későn induló graftfunkció. Következtetés: A legenyhébb kategóriába (Grade 1.) került a legtöbb beteg, a szövődmények jelentős része sebészi, intervenciós radiológiai és urológiai közreműködéssel megoldható volt. Az ureteranastomosisok műtéti technikája és a releváns szövődmények kialakulása között nincs szignifikáns összefüggés. Megfelelő és időben alkalmazott korrekciós kezelés mellett a graft- és betegtúlélést nem rontja szignifikánsan az enyhe és középsúlyos (Grade 1–3.) szövődmények kialakulása. Orv Hetil. 2021; 162(26): 1038–1051. Summary. Introduction: Complications associated with postoperative intervention may affect graft and patient survival after kidney transplantation. Monitoring the effectiveness of surgery is an important aspect. Ureter anastomosis can be the pivot of kidney transplant, the same as vascular anastomosis, so efficiency of the surgical technique is important to follow up. Objective and method: We retrospectively examined kidney transplants performed between 2010 and 2020 at the Department of Surgery of the University of Debrecen. Data were analyzed by the SPSS statistical program. We aimed to investigate surgical complications, which were systematized based on the modified Clavien classification. In one patient, the most severe complication was used as the basis for the schedule. The minimum follow-up time was 1 year. Results: 406 kidney transplants were performed in the examined period, of which 24.4% (n = 99) developed renal transplant complications (surgical, radiological, urological). The mean age of the patients was 49.5 ± 13.7 years, and 60.8% were male. The cumulative mortality was 10.1%. Grade 4 complication developed in 6.9% (n = 28) of the recipients, Grade 3 in 6.7% (n = 27), Grade 2 in 3% (n = 12), and Grade 1 in 7.9% (n = 32). 20.4% of the recipients had delayed graft function. Conclusion: The Grade 1 group had the biggest case number, so a significant part of the complications could be solved with the help of interventional radiology and urologists. There is no significant association between the surgical technique of ureteral anastomoses and the development of related complications. With appropriate therapy, graft and patient survival are not significantly impaired by the development of Grade 1–3 complications. Orv Hetil. 2021; 162(26): 1038–1051.
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- 2021
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12. Cytoreductiv radikális prostatectomiával szerzett tapasztalataink oligometastaticus prosztatadaganatok esetében
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János Dócs, Tibor Flaskó, and Csaba Berczi
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medicine.medical_specialty ,business.industry ,Prostatectomy ,medicine.medical_treatment ,Locally advanced ,Urology ,Bone metastasis ,General Medicine ,medicine.disease ,Primary tumor ,Prostate cancer ,medicine.anatomical_structure ,Tumor progression ,Prostate ,medicine ,In patient ,business - Abstract
Összefoglaló. Bevezetés: Az utóbbi években az oligometastaticus prosztatadaganatok kezelése során a szisztémás kezelés mellett egyre gyakrabban végzik a primer tumor lokális kezelését is. Célkitűzés: A szerzők a tanulmányban a cytoreductiv radikális prostatectomia szerepét vizsgálták az oligometastaticus prosztatadaganatok kezelése során. Módszer: 2012. 01. 01. és 2019. 01. 01. között összesen hét betegben végeztek cytoreductiv radikális prostatectomiát oligometastaticus prosztatadaganat esetében. A betegek átlagos életkora 64 év, az átlagos PSA-koncentráció 43 ng/ml volt. Az áttétek száma minden beteg vonatkozásában maximum három volt, és valamennyi esetben csontáttét volt jelen. A betegek androgéndeprivatiós hormonkezelést kaptak, és közülük négy esetben már a műtét előtt elkezdték a hormonterápiát. Négy betegnél a csontmetastasisok miatt az áttétek sugárkezelése is megtörtént. Eredmények: A cytoreductiv prostatectomia szövettana öt esetben igazolt lokálisan előrehaladott (pT3) daganatot, és két alkalommal marginpozitivitás volt jelen. Emiatt öt beteg kapott adjuváns lokális irradiációt a metastasisok besugárzásán kívül. A műtétet követően biokémiai progresszió egy esetben jelentkezett. Ennek oka lokális recidíva volt, mely miatt a beteg ’salvage’ irradiációt kapott. Az átlagosan 38 hónapos utánkövetés során új metastasist nem diagnosztizáltak, és tumor okozta halálozás nem fordult elő. Következtetés: A cytoreductiv prostatectomia oligometastaticus prosztatarákos betegek kezelésében – válogatott beteganyagon – megvalósítható lehetőség. Ugyanakkor a cytoreductiv prostatectomia előnyei a tumorprogresszió szempontjából még nem egyértelműek, ennek eldöntéséhez további vizsgálatok szükségesek. Orv Hetil. 2021; 162(13): 483–487. Summary. Introduction: In recent years, in addition to systemic therapy, local treatment of primary tumor has become increasingly common in the treatment of oligometastatic prostate cancers. Objectve: The authors measured the role of cytoreductive radical prostatectomy in the treatment of oligometastatic prostate carcinoma. Methods: From Janury 2012 to January 2019, they performed cytoreductive radical prostatectomy in seven patients with oligometastatic prostate cancer. The mean age of the patients was 64 years, and the mean PSA value was 43 ng/ml. The patients had maximum three distant metastases and all metastases were localized to the bones. The patients received androgene deprivation therapy and this treatment was started before the surgery in four cases. Irradiation of the bone metastasis was performed in four cases. Results: The histology of the cytoreductive radical prostatectomy showed locally advanced tumor (pT3) in five patients and margin-positive status was present in two cases. Hence, adjuvant irradiation was administered locally in five patients in addition to the irradiation of bone metastases. Biochemical progression was detected in one patient during the follow-up period. It was caused by local recurrence of the tumor and the patient was treated with salvage irradiation. During the 38 months follow-up period neither new distant metastasis nor cancer-related mortality was detected. Conclusion: The cytoreductive radical prostatectomy is a feasible option in selected cases with oligometastatic prostate cancer. However, the benefits of cytoreductive radical prostatectomy regarding tumor progression are not clear yet and further studies are required. Orv Hetil. 2021; 162(13): 483–487.
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- 2021
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13. Long-lasting prothrombotic state implied by changes of plasma von Willebrand factor parameters after radical prostatectomy for prostate malignancy
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Andras D. Kaposi, Istvan Domjan, Zsuzsanna Molnár, Tibor Flaskó, Jolan Harsfalvi, Mátyás Benyó, and Maria Cs Csanyi
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Male ,medicine.medical_specialty ,Surgical stress ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Fibrinogen ,Endothelial activation ,Plasma ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Von Willebrand factor ,Prostate ,hemic and lymphatic diseases ,von Willebrand Factor ,Humans ,Medicine ,Aged ,Prostatectomy ,biology ,business.industry ,Prostatic Neoplasms ,Middle Aged ,medicine.disease ,ADAMTS13 ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,biology.protein ,business ,medicine.drug - Abstract
Objectives Thromboembolic complications are present in 0.8%–16.8% of the cases after radical prostatectomy (RP). Association between elevated plasma von Willebrand factor (VWF) levels—as an endothelial activation marker—and increased risk of thrombotic events has been evidenced. We aimed to elicit new data on the VWF after RP in prostate cancer patients and explore the role of it as a thrombotic risk factor. Upon perioperative plasma VWF levels (VWF:Ag) its collagen-binding (CB) activity (VWF:CB), multimerization, and cleaving enzyme (ADAMTS13 [a disintegrin and metalloprotease with thrombospondin type repeats, motif 1, type 13]) of the VWF multimers were quantitated along with Factor VIII and routine laboratory parameters in this observational pilot study. Methods Plasma samples of 24 prostate cancer patients were collected before (-1 day; D-1) and after RP (1 hour, 6 days, 1 month, and 10 months; H1, D6, M1, and M10). VWF:Ag, VWF:CB, ADAMTS13:Ag were measured by ELISA, and the multimer distribution by electrophoresis and quantitative densitometry. Factor VIII, fibrinogen, D-dimer, and other routine laboratory parameters were determined as well. Preoperative values served as baselines which were compared to controls (24 healthy individuals). Results VWF:Ag and CB elevated by 122% and 143% respectively at H1 after RP then plateaued at D6 compared to baseline values. ADAMTS13/VWF:Ag ratio reduced by 41% at H1, and by 46% at D6, meanwhile the ratio of high molecular weight multimers increased as well. Values returned to baseline at M1 and further reduced to the levels of the controls at M10. All of the 24 patients at H1 and D6 and 14 at M10 were in potential prothombotic state according ROC analysis of the VWF parameters as indicators. Conclusions Prostate malignancy and then surgical stress, and inflammatory reactions induced release of VWF from the endothelial cells, along with an increasing amount of large multimers and relative reduction of ADAMTS13 level. Because these changes mark a prothrombotic state even at M1 after RP, more than 1 month follow-up and prophylactic targeting through the thrombotic and inflammatory activity of the VWF is proposed. Evaluation of VWF parameters provides new information about the long-term disturbances of primary hemostasis after radical pelvic oncologic surgery like RP and might improve the understanding the physiological and pathological recovery.
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- 2020
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14. A New Modified Bipedicle Scrotal Skin Flap Technique for the Reconstruction of Penile Skin in Patients with Paraffin-Induced Sclerosing Lipogranuloma of the Penis
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Mihály Murányi, Dániel Varga, Zoltán Kiss, and Tibor Flaskó
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Male ,Paraffin ,Urology ,Scrotum ,Humans ,Plastic Surgery Procedures ,Penis ,Retrospective Studies - Abstract
We introduce a new modified penile skin reconstruction technique to treat paraffin-induced sclerosing lipogranuloma of the penis.From 2017 to 2020, 49 patients underwent the procedure. Complete removal of the lipogranuloma-involved penile skin was performed. A subcutaneous tunnel was then created between a horizontal scrotal incision and a proximal penile circumferential incision. The denuded penis was pulled through the tunnel, and a subcoronal and longitudinal dorsal penile suture line was made. An inverted V-shaped incision was made on the scrotum on the ventral side of the penis, followed by longitudinal closure. Outcomes and complications of the procedure were retrospectively studied. The long-term effect of surgery on sexual function and overall satisfaction was measured using a patient-reported questionnaire, which was completed by 30 patients.The overall complication rate was 26.5%. Clavien-Dindo grade 1, 2, 3a, 3b, 4 and 5 complications occurred in the postoperative period 5, 0, 8, 1, 0 and 0 times, respectively, in 13 patients. Surgery was successful in 27 (90%) patients according to the patient-reported questionnaire. Erectile dysfunction, pain/tension during erection, premature ejaculation and penile lymphedema were observed in 2, 3, 1 and 1 patients, respectively. All patients reported sexual intercourse ability.The type of penile skin reconstruction after the removal of sclerosing lipogranuloma of the penis is controversial. The reconstruction technique presented herein is an effective single-stage treatment option with a high success rate in patients with sclerosing lipogranuloma of the penis with intact scrotal skin.
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- 2022
15. Impact of Neoadjuvant Sunitinib Treatment on Tumour Thrombi in the Inferior Vena Cava in Metastatic Renal Cell Carcinoma
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Tibor Flaskó, Csaba Berczi, Balazs Juhasz, Akos Berczi, and Tamás Szerafin
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Cultural Studies ,medicine.medical_specialty ,lcsh:Internal medicine ,lcsh:Specialties of internal medicine ,metastatic renal cancer ,lcsh:Medicine ,urologic and male genital diseases ,lcsh:RC870-923 ,Inferior vena cava ,lcsh:RC254-282 ,Renal cell carcinoma ,lcsh:RC581-951 ,medicine ,cardiovascular diseases ,lcsh:RC31-1245 ,neoadjuvant sunitinib ,tumour thrombus ,Sunitinib ,business.industry ,lcsh:R ,Religious studies ,medicine.disease ,lcsh:Diseases of the genitourinary system. Urology ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.vein ,cardiovascular system ,Radiology ,business ,inferior vena cava ,medicine.drug ,radical nephrectomy - Abstract
The authors report cases of metastatic renal cell carcinoma with level III-IV tumour thrombi in the inferior vena cava (IVC). Cases were treated with three courses of neoadjuvant sunitinib to reduce the thrombus level before surgery. Nephrectomy and tumour thrombectomy were performed, and sunitinib treatment continued after the operation. Cases 1 and 3 showed regression of lung metastases, but the size of the primary renal tumour and thrombus remained the same. The progression-free survival of the cases was 35 months and 24 months, respectively. In case 2, the primary renal tumour, metastases and thrombus showed regression. The upper limit of the thrombus decreased by 3 cm. In this case, the progression-free survival was 15 months, and the cancer-specific survival was 18 months. The neoadjuvant sunitinib treatment had a limited effect on downsizing the extent of tumour thrombi in the IVC.
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- 2020
16. Surgical complications after kidney transplantation based on the Clavien classification, especially with regard to the types of ureteral anastomoses
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Lóránt, Illésy, Roland, Fedor, Dávid Ágoston, Kovács, Zsolt, Kanyári, Gergely, Zádori, Gergő József, Szőllősi, Márton, Kovács, Tibor, Flaskó, Judit, Tóth, Richárd, Veisz, Ivett, Belán, and Balázs, Nemes
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Adult ,Male ,Postoperative Complications ,Humans ,Middle Aged ,Kidney Transplantation ,Retrospective Studies - Abstract
Összefoglaló. Bevezetés: Veseátültetést követően a graft és a beteg túlélésére hatással lehetnek a posztoperatív intervenciót igénylő szövődmények. Fontos szempont a műtéttechnikai eredményesség monitorozása. Többek között az irodalomban számos lehetőség ismert a veseátültetés sarokpontjának számító ureteranastomosis elkészítésére is, de az éranastomosisok technikája szintén döntő lehet. Célkitűzés és módszer: Retrospektíven vizsgáltuk a 2010 és 2020 között végzett veseátültetéseket a Debreceni Egyetem Sebészeti Klinikáján. Célul tűztük ki a sebészeti szövődmények vizsgálatát, melyeket rendszereztünk, a módosított Clavien-féle beosztás alapján. A legnagyobb figyelmet az ureteranastomosisokra fordítottuk. Minden betegnél az adott kategóriában legsúlyosabb szövődményt vettük alapul a beosztáshoz. A minimális utánkövetési idő 1 év volt. Az adatokat az SPSS statisztikai program segítségével elemeztük. Eredmények: A vizsgált periódusban 406 veseátültetés történt, melyből 24,4% (n = 99) vesetranszplantáltnál alakult ki intervenciós (sebészeti, radiológiai, urológiai) szövődmény. A betegek átlagéletkora 49,5 ± 13,7 év, 60,8% férfi volt. A kumulatív mortalitás 10,1% volt. Grade 4-es szövődmény a betegek 6,9%-ánál (n = 28), Grade 3-as a 6,7%-ánál (n = 27), Grade 2-es a 3%-ánál (n = 12), Grade 1-es a 7,9%-ánál (n = 32) jelentkezett. A veseátültetés után 20,4%-ban (n = 83) alakult ki későn induló graftfunkció. Következtetés: A legenyhébb kategóriába (Grade 1.) került a legtöbb beteg, a szövődmények jelentős része sebészi, intervenciós radiológiai és urológiai közreműködéssel megoldható volt. Az ureteranastomosisok műtéti technikája és a releváns szövődmények kialakulása között nincs szignifikáns összefüggés. Megfelelő és időben alkalmazott korrekciós kezelés mellett a graft- és betegtúlélést nem rontja szignifikánsan az enyhe és középsúlyos (Grade 1-3.) szövődmények kialakulása. Orv Hetil. 2021; 162(26): 1038-1051.Complications associated with postoperative intervention may affect graft and patient survival after kidney transplantation. Monitoring the effectiveness of surgery is an important aspect. Ureter anastomosis can be the pivot of kidney transplant, the same as vascular anastomosis, so efficiency of the surgical technique is important to follow up.We retrospectively examined kidney transplants performed between 2010 and 2020 at the Department of Surgery of the University of Debrecen. Data were analyzed by the SPSS statistical program. We aimed to investigate surgical complications, which were systematized based on the modified Clavien classification. In one patient, the most severe complication was used as the basis for the schedule. The minimum follow-up time was 1 year.406 kidney transplants were performed in the examined period, of which 24.4% (n = 99) developed renal transplant complications (surgical, radiological, urological). The mean age of the patients was 49.5 ± 13.7 years, and 60.8% were male. The cumulative mortality was 10.1%. Grade 4 complication developed in 6.9% (n = 28) of the recipients, Grade 3 in 6.7% (n = 27), Grade 2 in 3% (n = 12), and Grade 1 in 7.9% (n = 32). 20.4% of the recipients had delayed graft function.The Grade 1 group had the biggest case number, so a significant part of the complications could be solved with the help of interventional radiology and urologists. There is no significant association between the surgical technique of ureteral anastomoses and the development of related complications. With appropriate therapy, graft and patient survival are not significantly impaired by the development of Grade 1-3 complications. Orv Hetil. 2021; 162(26): 1038-1051.
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- 2021
17. Analysis of pathological and biological features of small renal masses based on the tumor size
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Csaba, Berczi, Zsolt, Bacsó, László, Bidiga, Judit, Nagy, and Tibor, Flaskó
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Incidence ,Humans ,Middle Aged ,Kidney Neoplasms ,Aged - Abstract
Összefoglaló. Bevezetés: A kis méretű vesedaganatok között lényegesen gyakoribbak a benignus elváltozások, és a kis malignus tumorok biológiai tulajdonságai is kedvezőbbek, mint a nagyobb daganatokéi. Célkitűzés: Szerzők a kis méretű vesetumorok tulajdonságait vizsgáltuk különböző alcsoportokban. Módszer: 2000. január 1. és 2015. január 1. között 1272 beteg esetén végeztünk műtétet vesedaganat miatt. Közülük 496 betegnek volt kis méretű vesetumora. A betegek átlagéletkora 59 ± 12 év volt. A betegeket a tumorméret alapján három csoportba osztottuk. Az 1. csoportban a daganat mérete ≤4 cm, a 2. csoportban ≤3 cm és a 3. csoportban ≤2 cm volt. Eredmények: Az eltávolított daganat nagysága átlagosan 29 ± 8 mm volt. A szövettan 418 esetben (84%) malignus, míg 78 alkalommal (16%) benignus elváltozást mutatott. A 2 cm-nél kisebb daganatoknál malignitás csak az esetek 73,2%-ában fordult elő. A malignus és a benignus tumorok méretében szignifikáns eltérés volt (p = 0,008). Rosszul differenciált daganat - grade 3. és 4. - az esetek 10,8%-ában, 14,4%-ában, illetve 20,7%-ában volt jelen, amikor a tumorméret kisebb mint 2 cm, 2,1-3 cm, illetve 3,1-4,0 cm volt. A vesecarcinomáknál az átlagosan 10 éves utánkövetési idő alatt progresszió az esetek 5,5%-ában fordult elő. Következtetés: A kis méretű vesetumor az összes vesedaganat 39%-át tette ki. Ezek nagy része malignus volt, és benignus elváltozás az esetek 16%-ában fordult elő. A malignitás előfordulása a 2 cm-nél kisebb tumoroknál volt a legalacsonyabb. A tumorméret szoros összefüggést mutatott a malignitás gyakoriságával és a daganat differenciáltságával. A kedvező patológiai és biológiai eredmények alapján a 2 cm alatti daganatoknál felmerül annak lehetősége, hogy esetükben az aktív követés vagy minimálisan invazív kezelés alkalmazása kerüljön előtérbe. Orv Hetil. 2021; 162(42): 1693-1697.The incidence of benign lesions is more common in small renal masses (SRMs) and biological behavior of small malignancies is better compared to larger ones.The authors measured the characteristics of SRMs in different subgroups.From January 1, 2000 to January 1, 2015, 1272 patients underwent surgery for renal tumors. In 496 of the 1272 cases, the patients had SRMs. The mean age of the patients was 59 ± 12 years. Based on the sizes, the SRMs were divided into three groups. The sizes of the renal tumors were ≤4 cm in Group 1, ≤3 cm in Group 2 and ≤2 cm in Group 3.The mean diameter of the removed SRMs was 29 ± 8 mm. Histology confirmed renal cell carcinoma in 418 cases (84%), while benign tumor was present in 78 patients (16%). However, with the tumor size ≤2 cm, malignancy was detected in 73.2% of the cases. There was a significant difference in the sizes of the malignant and the benign masses (p = 0.008). Grade 3 or 4 tumors were present in 10.8%, 14.4% and 20.7% when the tumor size was ≤2 cm, 2.1 to 3 cm, and 3.1 to 4 cm in diameter, respectively. During the mean 10-year follow-up period, tumor progression was detected only in 5.5% of malignancies.In 39% of all cases, the patients had SRMs. The majority of SRMs were malignant, and benign lesion occurred only in 16% of the cases. The incidence of malignant tumors was the lowest when the size of SRMs was ≤2 cm. The size of the tumor was highly associated with probability of malignancy and tumor grading. Based on the favorable pathological and biological results in tumors below 2 cm, active surveillance or minimally invasive treatment could be the preferred management. Orv Hetil. 2021; 162(42): 1693-1697.
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- 2021
18. Staged penile skin reconstruction for sclerosing lipogranuloma
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Mihály, Murányi, Antal, Farkas, Zoltán, Kiss, Gyula, Drabik, and Tibor, Flaskó
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Male ,Postoperative Complications ,Humans ,Penis ,Retrospective Studies - Abstract
Összefoglaló. Bevezetés: A hímtag körméretének növelése érdekében, az annak bőre alá bejuttatott zsírnemű anyag szklerotizáló lipogranulomát okoz. Hazánkban a szklerotizáló lipogranuloma okozta hímvessző-deformitások kezelésének legelterjedtebb módszere a két ülésben végzett bőrpótlás. Ennek ellenére a magyar nyelvű szakirodalomban kevés adat áll rendelkezésre a kétüléses műtét eredményességéről és várható szövődményeiről. Célkitűzés: Tanulmányunkban a szklerotizáló lipogranuloma okozta deformitások miatti - két ülésben végzett - hímvesszőbőr-helyreállítással szerzett tapasztalatainkról, a műtét után kialakuló szövődményekről számolunk be retrospektív adatgyűjtés alapján. Módszer: 2008. március 1. és 2020. március 1. között a Debreceni Egyetem Urológiai Klinikáján 17 betegen végeztünk kétüléses hímvesszőbőr-helyreállító műtétet. A szklerotizáló lipogranuloma által érintett bőrt teljes mértékben eltávolítottuk, majd a lecsupaszított hímtagot a herezacskó elülső felszínén kialakított subcutan csatornába helyeztük. A második ülés során a herezacskó bőre alá ültetett hímvesszőt felszabadítottuk. Eredmények: A Clavien-Dindo-beosztás szerint az első ülés után három, a második ülés után egy I. gradusú szövődmény alakult ki; II-V. gradusú szövődményt nem figyeltünk meg. Azon 9 beteg közül, akik mindkét ülésen átestek, 7 beteg elégedett volt a beavatkozás eredményével, 2 beteg korrekciós műtéten esett át fél és 9 évvel a második ülés után. A 8 beteg közül, akik csak ez első ülést vállalták, egy korrekciós műtét történt 4 hónappal a műtét után. Következtetés: A hímvessző szklerotizáló lipogranulomája esetén az érintett bőrterület kimetszése után hímvesszőbőr-helyreállítás szükséges. A herezacskó-bőrlebeny alkalmazásának előnye, hogy a herezacskó színe és elaszticitása a hímvesszőbőréhez hasonló, a tapintás- és erogén érzet megmarad. A kétüléses hímvesszőbőr-helyreállítás kevés szövődménnyel, plasztikai sebészeti jártasság nélkül elvégezhető. Orv Hetil. 2021; 162(35): 1413-1417.Subcutaneous injection of liquid fatty materials to enhance penile girth induce sclerosing lipogranuloma of the penis. In spite of its well known severe consequences there has been a persistent use of this practice in non-medical circumstances.The aim of this paper is to present our observations with staged penile skin reconstruction for sclerosing lipogranuloma and to evaluate postoperative complications in a retrospective manner.Between 2008 and 2020, 17 patients underwent surgery to treat sclerosing lipogranuloma of the penis by staged penile skin reconstruction at our department. Complete exscision of the involved tissue was performed, then the denuded penile shaft was inserted into a subcutaneous channel on the anterior side of the scrotum during the first stage. The second stage of reconstruction consisted of releasing the penile shaft from the scrotum. The second stage was performed merely on 9 in 17 patients.According to the Clavien-Dindo classification system, 3 grade I and 1 grade I complications occurred in the postoperative period after the first and second stage, respectively. Grade II-V complications were not observed. 7 of 9 patients who underwent both stages were satisfied with the final result, 2 patients had minor correction surgery 6 months and 9 years following the second stage. 1 of 8 patients who underwent only the first stage had minor correction surgery 4 months following the operation.In case of sclerosing lipogranuloma of the penis, excision of the affected tissue and reconstruction of the penile skin are indicated. Advantages of using scrotal skin flaps are that colour and elasticity of the scrotal skin are similar to penile skin, erogenous sensation of the scrotal flap remains intact. Applying staged penile skin reconstruction with scrotal skin flap has the advantage of few postoperative complications and it is easy to perform. Orv Hetil. 2021; 162(35): 1413-1417.
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- 2021
19. Impaired Vitamin D Signaling Is Associated With Frequent Development of Renal Cell Tumor in End-stage Kidney Disease
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Janos Docs, Tibor Flaskó, Arpad Szanto, Daniel Banyai, and Gyula Kovács
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Male ,Cancer Research ,medicine.medical_specialty ,urologic and male genital diseases ,medicine.disease_cause ,Kidney ,Calcitriol receptor ,CYP24A1 ,Internal medicine ,medicine ,Vitamin D and neurology ,Humans ,Vitamin D ,Vitamin D3 24-Hydroxylase ,Carcinoma, Renal Cell ,25-Hydroxyvitamin D3 1-alpha-Hydroxylase ,business.industry ,Cancer ,General Medicine ,medicine.disease ,Gene Expression Regulation, Neoplastic ,Endocrinology ,medicine.anatomical_structure ,Kidney Tubules ,Oncology ,Immunohistochemistry ,Kidney Failure, Chronic ,Receptors, Calcitriol ,Female ,business ,Carcinogenesis ,Metabolic Networks and Pathways ,Kidney disease - Abstract
Background/aim End-stage kidney disease is characterized by chronic inflammation and frequent development of cancer. The level of circulating vitamin D is generally low in patients with end-stage renal disease (ESRD). Experimental studies have implicated the role of dysfunctional vitamin D metabolism in tumorigenesis. Patients and methods We analyzed the expression of vitamin D receptor (VDR), cytochrome P450 family 27 subfamily B member 1 (CYP27B1) and cytochrome P450 family 24 subfamily A member 1 (CYP24A1), the key genes involved in vitamin D signaling, in kidneys from patients with ESRD, tissue microarrays containing ESRD-associated renal cell tumors, as well as in their precursor lesions by immunohistochemistry. Results Kidneys from patients with ESRD showed strong structural rearrangement with only few tubules and epithelial cell groups embedded in fibrotic-inflammatory stroma. Only an estimated 1-3% of the epithelial cells showed positive staining with antibodies to VDR, CYP27B1 and CYP24A1, which contrasted with the 100%, 40-50% and 40-50% of positively stained cells, respectively, found in normal kidneys. Down-regulation of the vitamin D signaling proteins was found in patients with renal cancer, with the exception of tumors and their precursors occurring exclusively in ESRD. Conclusion The significantly reduced activity of CYP27B1 in kidney from patients with ESRD explains the low level of circulating vitamin D. We suggest that the lack of anti-tumorigenic effect of vitamin D is a crucial factor in the frequent development of unique types of renal cell cancer in in patients with ESRD.
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- 2020
20. Our experience with cytoreductive radical prostatectomy in patients with oligometastatic prostate cancer
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Csaba, Berczi, János, Dócs, and Tibor, Flaskó
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Male ,Prostatectomy ,Treatment Outcome ,Feasibility Studies ,Humans ,Prostatic Neoplasms ,Cytoreduction Surgical Procedures ,Middle Aged ,Follow-Up Studies - Abstract
Összefoglaló. Bevezetés: Az utóbbi években az oligometastaticus prosztatadaganatok kezelése során a szisztémás kezelés mellett egyre gyakrabban végzik a primer tumor lokális kezelését is. Célkitűzés: A szerzők a tanulmányban a cytoreductiv radikális prostatectomia szerepét vizsgálták az oligometastaticus prosztatadaganatok kezelése során. Módszer: 2012. 01. 01. és 2019. 01. 01. között összesen hét betegben végeztek cytoreductiv radikális prostatectomiát oligometastaticus prosztatadaganat esetében. A betegek átlagos életkora 64 év, az átlagos PSA-koncentráció 43 ng/ml volt. Az áttétek száma minden beteg vonatkozásában maximum három volt, és valamennyi esetben csontáttét volt jelen. A betegek androgéndeprivatiós hormonkezelést kaptak, és közülük négy esetben már a műtét előtt elkezdték a hormonterápiát. Négy betegnél a csontmetastasisok miatt az áttétek sugárkezelése is megtörtént. Eredmények: A cytoreductiv prostatectomia szövettana öt esetben igazolt lokálisan előrehaladott (pT3) daganatot, és két alkalommal marginpozitivitás volt jelen. Emiatt öt beteg kapott adjuváns lokális irradiációt a metastasisok besugárzásán kívül. A műtétet követően biokémiai progresszió egy esetben jelentkezett. Ennek oka lokális recidíva volt, mely miatt a beteg 'salvage' irradiációt kapott. Az átlagosan 38 hónapos utánkövetés során új metastasist nem diagnosztizáltak, és tumor okozta halálozás nem fordult elő. Következtetés: A cytoreductiv prostatectomia oligometastaticus prosztatarákos betegek kezelésében - válogatott beteganyagon - megvalósítható lehetőség. Ugyanakkor a cytoreductiv prostatectomia előnyei a tumorprogresszió szempontjából még nem egyértelműek, ennek eldöntéséhez további vizsgálatok szükségesek. Orv Hetil. 2021; 162(13): 483-487.In recent years, in addition to systemic therapy, local treatment of primary tumor has become increasingly common in the treatment of oligometastatic prostate cancers. Objectve: The authors measured the role of cytoreductive radical prostatectomy in the treatment of oligometastatic prostate carcinoma.From Janury 2012 to January 2019, they performed cytoreductive radical prostatectomy in seven patients with oligometastatic prostate cancer. The mean age of the patients was 64 years, and the mean PSA value was 43 ng/ml. The patients had maximum three distant metastases and all metastases were localized to the bones. The patients received androgene deprivation therapy and this treatment was started before the surgery in four cases. Irradiation of the bone metastasis was performed in four cases.The histology of the cytoreductive radical prostatectomy showed locally advanced tumor (pT3) in five patients and margin-positive status was present in two cases. Hence, adjuvant irradiation was administered locally in five patients in addition to the irradiation of bone metastases. Biochemical progression was detected in one patient during the follow-up period. It was caused by local recurrence of the tumor and the patient was treated with salvage irradiation. During the 38 months follow-up period neither new distant metastasis nor cancer-related mortality was detected.The cytoreductive radical prostatectomy is a feasible option in selected cases with oligometastatic prostate cancer. However, the benefits of cytoreductive radical prostatectomy regarding tumor progression are not clear yet and further studies are required. Orv Hetil. 2021; 162(13): 483-487.
- Published
- 2020
21. Vesetranszplantációt követően a graftban kialakult vesetumor
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Zoltán Kiss, Csaba Berczi, Adrienne Berczi, and Tibor Flaskó
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Urology - Abstract
Bevezetés: A szervtranszplantációt követően alkalmazott immunszuppresszív kezelés növeli a malignus daganatok incidenciáját. Vesetranszplantációt követően a vesetumor előfordulása magasabb, mint a normálpopulációban. Ezen daganatok többsége a beteg saját veséjében alakul ki, azonban 10%-uk a graftban jelentkezik. Szerzők tanulmányukban három eset kapcsán ismertetik a transzplantált vesében jelentkező vesedaganat kezelésével szerzett tapasztalataikat. Esetismertetés: 1. eset: a 46 éves férfi betegnél 20 évvel korábban történt vesetranszplantáció. A gondozás során rutinszerűen végzett ultrahangvizsgálat egy 2 cm-es tumort észlelt a graftban, amelyet az elvégzett hasi MR-vizsgálat megerősített. A betegnél parciális nephrectomiát végeztek. A szövettani vizsgálat pT1a, renocelluláris karcinómát igazolt. A műtétet követően az immunszuppresszív gyógyszerek dózisát csökkentették. A 2 éves utánkövetés során recidív tumort nem észleltek. 2. eset: a 65 éves nőbetegnél 13 évvel ezelőtt végeztek vesetranszplantációt. Ultrahang- és CT-vizsgálat a transzplantált vese felső pólusában egy 35 mm-es daganatot írt le, amely miatt vesereszekció történt. A szövettani vizsgálat pT1a, renocelluláris karcinómát mutatott. A műtétet követően az immunszuppresszív gyógyszerek dózisát csökkentették. A17 hónapos utánkövetés alatt recidíva nem alakult ki. 3. eset: a 62 éves férfi betegben 10 évvel korábban vesetranszplantáció történt. Az utánkövetés során az ultrahangvizsgálat a graftban 2,5 cm-es tumort mutatott, amelyet a CT is igazolt. Tumorreszekció történt, amelynek során multifokális daganat került eltávolításra. A szövettan papilláris karcinómát véleményezett. A műtétet követően a tacrolimus helyett everolimus kezelés indult. A 2 hónapos utánkövetés alatt recidíva nem jelentkezett. Megbeszélés: A vesetranszplantációt követően a graftban kialakult vesetumorok esetében szervmegtartó műtétet ajánlott végezni. Az ismertetésre került esetekben is tumorreszekció történt. A szervmegtartó műtét megfelelő onkológiai eredményességet biztosított az átültetett vese funkciójának megtartása mellett.
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- 2019
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22. A radikális prostatectomia előtt alkalmazott neoadjuváns hormonkezelés hatékonysága lokálisan előrehaladott magas rizikójú prosztatadaganatoknál
- Author
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Csaba Berczi, Zoltán Kiss, and Tibor Flaskó
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Urology - Abstract
Cékitűzés: A neoadjuváns hormonkezelés hatékonyságának vizsgálata a lokálisan előrehaladott magas rizikójú prosztatatumorok esetében végzett radikális prostatectomiák során. Módszer: A tanulmányban a 1996.01.01 és 2018.01.01. között, a klinikailag lokálisan előrehaladott magas rizikójú prosztatadaganat miatt radikális prostatectomián átesett 105 beteg adatai kerültek feldolgozásra. Az 1. csoportba (n: 37) tartozó betegek a műtét előtt neoadjuváns hormonkezelést kaptak. A 2. csoportba sorolt betegek (n: 68) nem részesültek hormonkezelésben. Az 1. csoportban az átlagos életkor 64,1±6,8 év, míg az átlagos PSA-szint 31,5 ng/ml. A 2. csoportban az átlagos életkor 63,7±6,3 év, míg az átlagos PSA-szint 20,5 ng/ml volt. Valamennyi esetben a műtét előtt elvégzett képalkotó-vizsgálat lokálisan előrehaladott tumort mutatott. Eredmények: A szövettani vizsgálat az 1. csoportban, 8 esetben (21,6%), míg a 2. csoportban, 41 alkalommal (60,2%) igazolt lokálisan előrehaladott (pT3) daganatot (p=0,073). Margin-pozitivitás az 1. csoportban, 8 esetben (21,6%), míg a 2. csoportban, 28 betegben (41,7%) fordult elő (p=0,043). A medián 58 hónapos utánkövetés alatt az 1. csoportban biokémiai progressziót 8 (21,6%), lokális recidívát 1 (2,7%), míg távoli metasztázist 3 (8,1%) betegben diagnosztizáltak. A 2. csoportban biokémiai progresszió 12 (17,6%), lokális recidíva 3 (4,4%), míg távoli metasztázis 1 (1,4%) esetben fordult elő. Ezen vizsgált mutatókban a két csoport között nem volt szignifikáns eltérés. Tumorspecifikus mortalitás egyik csoportban sem fordult elő. Következtetések: Az eredmények alapján a klinikailag lokálisan előrehaladott magas rizikójú prosztatadaganatok esetében a neoadjuváns hormonkezelés jobb, de nem szignifikánsan jobb lokális tumorkontrollt biztosított. A későbbi tumorprogresszió szempontjából a neoadjuváns hormonkezelés nem nyújtott lényeges előnyt.
- Published
- 2019
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23. Prosztatabiopszia után kialakult kétoldali psoas tályog esete
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Dániel Varga, Mihály Murányi, and Tibor Flaskó
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Urology - Abstract
Bevezetés: A psoas tályog kialakulása prosztatabiopszia után az irodalmi adatok szerint extrém ritka, kétoldali, műtéti beavatkozást igénylő tályogot a paralumbalis izomzat érintettségével pedig eddig még nem írtak le. Jelen dolgozatunkban egy antibiotikum-védelemben elvégzett transrectalis prosztatabiopszia után kialakuló kétoldali psoas tályog sikeres kezelését mutatjuk be. Esetismertetés: A 62 éves férfi beteg a prosztatabiopszia után 8 nappal uroszepszis tüneteivel jelentkezett. Célzott antibiotikum-terápia ellenére a beteg szeptikus állapota nem javult, paraparesis alakult ki. MR-vizsgálat mindkét psoas majorban és a jobb oldali paralumbalis izomzatban tályogokat írt le, továbbá epiduralis phlegmonét. Utóbbi miatt idegsebészeti intézetben az epiduralis tályog evakuációját elvégezték. Ismételt MR-vizsgálat az abscessusok további növekedését jelezte, így klinikánkon a tályogokat megnyitottuk és drenáltuk. Célzott antibiotikum-kezelést végeztünk. Kontroll MR-vizsgálat a gyulladásos folyamat regresszióját írta le. Ezt követően intézetünkben laparoszkópos radikális prostatectomia történt. A beteg a legutóbbi, 2019. februári kontrollvizsgálat alapján panaszmentes. Következtetések: Esetbemutatásunk felhívja a figyelmet arra, hogy még a protokoll szerint végzett legegyszerűbb beavatkozás után is kialakulhat életet veszélyeztető, súlyos állapot, valamint arra, hogy a fluorokinolon-rezisztens törzsek számának növekedése ezen antibiotikumok hatékonyságát egyre jobban csökkenti. Amennyiben a képalkotó vizsgálat nem tud egyértelműen állást foglalni, a gyulladás hátterének tisztázásához szükség van a vizsgálat megismétlésére vagy további képalkotó vizsgálatokra, főleg abban az esetben, ha a gyulladásos paraméterek nem javulnak a célzott antibiotikum-terápia ellenére sem.
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- 2019
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24. Recidív húgycsőszűkület és prosztatarák terápiás dilemmája
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Zoltán Kiss, Mihály Murányi, and Tibor Flaskó
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Urology - Published
- 2018
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25. A radikális prostatectomia hatékonysága a magas rizikójú prosztatadaganatok kezelésére
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Zoltán Kiss, Csaba Berczi, and Tibor Flaskó
- Subjects
Urology ,Orvostudományok ,Klinikai orvostudományok - Abstract
LB
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- 2018
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26. Húgycsődivertikulum radikális prostatectomia után
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Tibor Flaskó, Mihály Murányi, Zoltán Kiss, and Antal Farkas
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Urology ,Orvostudományok ,Klinikai orvostudományok - Abstract
LB
- Published
- 2017
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27. Surgical Management and Outcome of Renal Cell Carcinoma with Inferior Vena Cava Tumor Thrombus
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Tibor Flaskó, Zsolt Bacsó, Tamás Szerafin, Ben Thomas, Akos Berczi, and Csaba Berczi
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Male ,Time Factors ,medicine.medical_treatment ,030232 urology & nephrology ,Kaplan-Meier Estimate ,Nephrectomy ,law.invention ,0302 clinical medicine ,Risk Factors ,law ,Renal cell carcinoma ,Elméleti orvostudományok ,Thrombectomy ,Aged, 80 and over ,Venous Thrombosis ,Cardiopulmonary Bypass ,Orvostudományok ,Middle Aged ,Neoplastic Cells, Circulating ,Kidney Neoplasms ,Tumor Burden ,Circulatory Arrest, Deep Hypothermia Induced ,Treatment Outcome ,medicine.vein ,030220 oncology & carcinogenesis ,cardiovascular system ,Female ,Radiology ,Adult ,medicine.medical_specialty ,Urology ,Vena Cava, Inferior ,Inferior vena cava ,Disease-Free Survival ,03 medical and health sciences ,medicine ,Cardiopulmonary bypass ,Humans ,Thrombus ,Carcinoma, Renal Cell ,Aged ,Neoplasm Staging ,business.industry ,Cancer ,Histology ,medicine.disease ,Surgery ,Tumor progression ,Neoplasm Recurrence, Local ,business - Abstract
Introduction: The authors of this paper assessed the surgical management and outcome of renal cancers when tumor thrombus extended into the inferior vena cava (IVC). Methods: From 2000 to 2015, 46 radical nephrectomies were performed on patients with tumor thrombus in the IVC. The mean age of the patients was 60 ± 11 years. Radical nephrectomy and thrombectomies were performed in a single session. There were 18 level-IV, 23 level-III, and 5 level-II tumor thrombi. The operations were performed using cardiopulmonary bypass in 14 patients, while deep hypothermic cardiac arrest was carried out in 4 cases. Results: The mean size of the tumors was 9.4 ± 3.5 cm. Histology showed the tumor stages to be pT3b in 21cases, pT3c in 22, and pT4 in 3 patients. The mean follow-up period of the patients was 3.6 ± 3.0 years. During the follow-up period, local recurrence was observed in 7 patients, while distant metastases occurred in 8 cases. The median time to progression was 37 ± 27 months. The 5-year overall survival was 43.7%. Conclusions: Radical nephrectomy and thrombectomy provided reasonable long-term survival for patients with renal cancer and IVC thrombus. However, tumor progression was detected in 41.6%. The presence of tumor thrombus had a negative effect on tumor progression and survival.
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- 2017
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28. A nagy imitátor
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Antal Farkas, Zoltán Kiss, Mihály Murányi, and Tibor Flaskó
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medicine.medical_specialty ,Catheter insertion ,Percutaneous ,Tuberculosis ,business.industry ,medicine.medical_treatment ,030232 urology & nephrology ,Biológiai tudományok ,General Medicine ,medicine.disease ,Nephrectomy ,Surgery ,03 medical and health sciences ,Catheter ,0302 clinical medicine ,Természettudományok ,medicine ,Urogenital tuberculosis ,030212 general & internal medicine ,Abscess ,business ,Pyelogram - Abstract
Authors present two patients suffering from renal tuberculosis, which caused differential diagnostic problems. The first patient was examined because of fever and left flank pain. Computed tomography revealed renal shrinkage on the left side. Retrograde pyelography demonstrated ureteric stricture and dilated calices. Urine culture showed Mycobacterium tuberculosis. Two months after initiation of the antituberculotic therapy nephrectomy was performed. The second patient was referred to the department because of fever after unsuccessful antibiotic treatment. Ultrasound examination showed a staghorn stone, dilated renal pelvis and perirenal abscess on the left side. Double J catheter insertion and percutaneous puncture of the abscess were performed. Culture of the pus aspirated proved Proteus morganii. Fever and complaints of the patient relieved after antibiotic treatment. Two months later double J catheter was changed because of persistent pyelonephritis. One week later the patient returned to the hospital with fever, which could not be reduced with intravenous antibiotics. Computed tomography showed purulent fluid in the left kidney, and nephrectomy was performed. Histology revealed renal tuberculosis. The authors summarize the diagnosis and treatment of renal tuberculosis on the basis of these two cases. Orv. Hetil., 2016, 157(9), 350–356.
- Published
- 2016
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29. A randomized phase II study with ilixadencel, a cell-based immune primer, plus sunitinib versus sunitinib alone in synchronous metastatic renal cell carcinoma
- Author
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Gunta Purkalne, Anna Laurell, Jacek Niezabitowski, Peter Suenaert, Anders Kjellman, Felipe Villacampa, Pablo Maroto, Zoltán Bajory, Asa Jellvert, Bohuslav Melichar, Pierre Bigot, Magnus Lindskog, Börje Ljungberg, Tibor Flaskó, Alex Karlsson-Parra, David Vazquez Alba, Maria J. Ribal, Henryk Zielinski, Omi Parikh, and Enrique Gallardo Diaz
- Subjects
Cancer Research ,business.industry ,Sunitinib ,Cell ,Phases of clinical research ,urologic and male genital diseases ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Immune system ,Oncology ,Renal cell carcinoma ,030220 oncology & carcinogenesis ,Cancer research ,Medicine ,Primer (molecular biology) ,business ,030215 immunology ,medicine.drug ,Cell based - Abstract
11 Background: Ilixadencel is a cell-based allogeneic off-the-shelf product aimed to prime anti-cancer immune response when injected intratumorally. The present randomized Phase II multicenter trial (MERECA; NCT02432846) evaluated intratumoral ilixadencel administration (2 doses 2 weeks apart) pre-nephrectomy followed by sunitinib post-nephrectomy compared with sunitinib monotherapy post-nephrectomy as first-line systemic therapy in patients with newly diagnosed synchronous metastatic renal cell carcinoma (mRCC). Methods: Patients were randomly assigned at two-to-one ratio to the combination (COMBO) or sunitinib (SUN) arm. Overall survival (OS) was assessed from enrollment while progression free survival (PFS) and tumor response was assessed per RECIST 1.1 (independent blinded central review) from start of sunitinib. Results: From April 2014 to January 2017, 88 patients (58 COMBO, 30 SUN) were randomized. In the COMBO arm, 2 patients did not receive ilixadencel, 10 did not receive sunitinib, and 1 did not have any follow up CT-scan. Five patients in the SUN arm never received sunitinib. Five patients (11%) in the COMBO arm had a complete response as best response versus one patient (4%) in the SUN arm. Confirmed ORR was 42.2 % (19/45) versus 24.0% (6/25). Median Duration of Response was 7.1 months versus 2.9 months. Median PFS was 11.8 months versus 11.0 months. Median OS has still not been reached in either group. As of July 2019, 57% and 43% were alive in the COMBO and SUN arms, respectively. Treatment with ilixadencel did not add any treatment-related Grade 3-4 Adverse Events. Conclusions: Compared to sunitinib monotherapy, combined treatment with ilixadencel followed by sunitinib demonstrated higher confirmed ORR, including several complete responses and longer duration of response, in patients with newly diagnosed synchronous mRCC. Clinical trial information: 02432846.
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- 2020
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30. Renal Tumor in Pregnancy: a Case Report and Review of the Literature
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Csaba Berczi and Tibor Flaskó
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Adult ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Biopsy ,Tumor resection ,030232 urology & nephrology ,Gestational Age ,Klinikai orvostudományok ,Nephrectomy ,Ultrasonography, Prenatal ,Time-to-Treatment ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Pregnancy ,medicine ,Humans ,Caesarean section ,Laparoscopy ,Carcinoma, Renal Cell ,Neoplasm Staging ,medicine.diagnostic_test ,business.industry ,Cesarean Section ,Orvostudományok ,Renal tumor ,medicine.disease ,Magnetic Resonance Imaging ,Kidney Neoplasms ,Surgery ,Tumor Burden ,Treatment Outcome ,Premature birth ,030220 oncology & carcinogenesis ,Gestation ,Female ,Neoplasm Grading ,business ,Pregnancy Complications, Neoplastic - Abstract
The authors present their renal tumor cases observed during pregnancy and review the literature related to this topic. Between January 1, 2000 and January 1, 2015, altogether 3 patients were treated for renal tumor during pregnancy. Two of them had surgery performed during pregnancy, while in the other, premature birth of the baby preceded surgery. In the first case, a laparoscopic tumor resection was performed in the 29th week of the patient's pregnancy. In the second case, a transperitoneal radical nephrectomy was carried out during the 10th week of pregnancy. In the case of the third patient, a caesarean section was performed during the 32nd week of gestation, and then followed later by surgery for the metastatic renal tumor. However, the tumor was found to be inoperable.
- Published
- 2017
31. Decreased Incidence of Appendix Testis in Cryptorchidism with Intraoperative Survey
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Balazs Kutasy, Tamás Cserni, Tibor Flaskó, Tamás Józsa, and István Csízy
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Male ,medicine.medical_specialty ,Urology ,Klinikai orvostudományok ,digestive system ,Congenital Abnormalities ,Intraoperative Period ,Cryptorchidism ,Testis ,medicine ,Humans ,Child ,neoplasms ,Retrospective Studies ,Gynecology ,business.industry ,Incidence ,Incidence (epidemiology) ,Infant ,Orvostudományok ,bacterial infections and mycoses ,digestive system diseases ,Appendix testis ,surgical procedures, operative ,Child, Preschool ,business - Abstract
Objective: Several authors have investigated the background of the process of testicular descent, but the role of the appendix testis has not been studied. The human appendix testis was found to express both estrogen and androgen receptors. We determined and compared the occurrence of testicular appendices intraoperatively in descended and undescended testes. Methods: The number of appendix testis was evaluated retrospectively in 208 boys who underwent uni- or bilateral orchiopexy, hydrocele or hernia repair and the testis was visible during operation. Results: The incidence of appendix testis was 76% (78 in 103) in descended and 24% (30 in 125) in undescended testes. Mean age at orchiopexy was lower in patients without appendix testis (39 months) compared to those patients who were found with appendix (61 months). Conclusion: The incidence of appendix testis was significantly lower (p < 0.05) in undescended testes, suggesting that the appendix testis might play a role in the process of testicular descent.
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- 2008
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32. Long-Term Oncological and Functional Outcomes of Partial Nephrectomy in Solitary Kidneys
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Csaba Berczi, Ben Thomas, Tibor Flaskó, and Zsolt Bacsó
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,030232 urology & nephrology ,Renal function ,Kaplan-Meier Estimate ,urologic and male genital diseases ,Kidney ,Klinikai orvostudományok ,Nephrectomy ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Risk Factors ,medicine ,Humans ,Aged ,Proportional Hazards Models ,Retrospective Studies ,Creatinine ,Warm Ischemia Time ,Renal ischemia ,business.industry ,Retrospective cohort study ,Orvostudományok ,Middle Aged ,Kidney Neoplasms ,Surgery ,medicine.anatomical_structure ,Treatment Outcome ,Oncology ,chemistry ,030220 oncology & carcinogenesis ,Female ,Hemodialysis ,business ,Organ Sparing Treatments ,Glomerular Filtration Rate - Abstract
Background In this study we assessed the efficacy of nephron-sparing surgery and the changes in renal function after surgery in patients with solitary kidneys. Patients and Methods From January 2000 to January 2015, 50 patients with solitary kidneys underwent partial nephrectomy for renal cancer. In 34 of the patients the contralateral kidneys had been removed previously because of renal tumor. The mean age of the patients was 62 ± 10 years. There were 15 women and 35 men. Results The average diameter of the tumors was 35.2 ± 19.5 mm. The mean preoperative aspects and dimensions used for an anatomical classification score was 7.6 ± 0.7. The mean renal ischemia time was 13.8 ± 6.5 minutes. The mean preoperative and the early postoperative glomerular filtration rate (GFR) were 62 ± 21 mL/min/1.73 m2 and 44 ± 18 mL/min/1.73 m2 (P = .0001), respectively. The mean GFR values decreased by 29% at 1 and at 3 years, and by 36% at 5 years after surgery. All changes in postoperative GFR levels were significant compared with the preoperative values. The tumor size and the warm ischemia time were risk factors for the long-term renal function. The mean follow-up time was 106 ± 96 months. During this period local recurrence occurred in 1 patient, and distant metastases were diagnosed in 4 cases. The 5-year overall, disease-specific, and recurrence-free survival were 88%, 93%, and 88%, respectively. Conclusion Partial nephrectomy provides a good oncological outcome. However, after nephron-sparing surgery most patients develop chronic renal disease, although hemodialysis treatment is rarely necessary. The tumor size and the warm ischemia time showed a close correlation with the long-term renal function.
- Published
- 2016
33. Bilateral renal cancers: oncological and functional outcomes
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Ben Thomas, Zsolt Bacsó, Tibor Flaskó, and Csaba Berczi
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Nephrology ,Male ,medicine.medical_specialty ,Urology ,Concordance ,030232 urology & nephrology ,Kidney Function Tests ,Klinikai orvostudományok ,Nephrectomy ,Resection ,Neoplasms, Multiple Primary ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Postoperative Complications ,Internal medicine ,medicine ,Humans ,In patient ,Carcinoma, Renal Cell ,Aged ,Retrospective Studies ,Creatinine ,Hungary ,business.industry ,Renal cancers ,Mean age ,Neoplasms, Second Primary ,Orvostudományok ,Unilateral nephrectomy ,Middle Aged ,Kidney Neoplasms ,Surgery ,Tumor Burden ,Outcome and Process Assessment, Health Care ,chemistry ,030220 oncology & carcinogenesis ,Female ,Radiology ,Neoplasm Recurrence, Local ,business ,Organ Sparing Treatments - Abstract
The authors assessed the characteristics of bilateral renal cancers. From January 1995 to January 2015, 65 patients underwent surgery for bilateral renal cancers. Thirty-four of the patients had 36 synchronous tumors, while the remaining 29 had metachronous tumors. The mean age of the patients was 60 ± 11 years. There were 22 females and 43 males. In all cases, bilateral partial nephrectomies or unilateral nephrectomy and contralateral nephron-sparing surgery were performed. The mean sizes of the synchronous tumors were 5.0 ± 2.7 and 4.7 ± 3.0 cm at the first and the second operations, respectively. The average diameters of the metachronous carcinomas were 6.6 ± 3.0 and 3.1 ± 1.6 cm at the initial and the second surgeries, respectively. Histologic concordance was 91.1 % in the synchronous and 96.5 % in the metachronous tumors. The mean postoperative creatinine levels increased by 116 %, while the GFR decreased by 44.8 % in synchronous tumors at the second operation. The mean postoperative creatinine levels increased by 42 %, while the GFR decreased by 30.4 % in metachronous carcinomas at the second operation. The mean follow-up time was 4.8 ± 3.7 years. During this period, distant metastases occurred in two patients with synchronous tumors and in six cases with metachronous tumors. Local recurrences were detected in one case of synchronous tumor and in four patients with metachronous carcinomas. The 5-year overall and tumor-specific survivals were 53 and 80 %, respectively. In patients with bilateral renal carcinomas, the histologic concordance was 93.6 %. The bilateral partial nephrectomies or unilateral nephrectomy and contralateral resection provided acceptable oncological and functional outcomes.
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- 2016
34. A mikroRNS-ek jelenléte vesetumorokban és lehetséges diagnosztikai-prognosztikai szerepük
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Gabor Halmos, Zsuzsanna Szabó, Tibor Flaskó, and Krisztián Szegedi
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Gyógyszerészeti tudományok ,Urology ,Orvostudományok - Abstract
LB
- Published
- 2016
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35. Successful laparoscopic radical prostatectomy in a patient with factor XI deficiency
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Zoltán Kiss, Tibor Flaskó, Mihály Murányi, and Mátyás Benyó
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medicine.medical_specialty ,Laparoscopic radical prostatectomy ,medicine.diagnostic_test ,business.industry ,Prostatectomy ,medicine.medical_treatment ,Electronic journal ,Factor level ,Orvostudományok ,030204 cardiovascular system & hematology ,Surgical procedures ,Klinikai orvostudományok ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,Coagulation ,030220 oncology & carcinogenesis ,Medicine ,business ,Laparoscopy ,Factor XI - Abstract
Introduction: Factor XI deficiency is a rare type of hemophilia. It is associated with profuse bleeding after traumas and surgical procedures. In a patient with factor XI deficiency, the serum coagulation factor level does not predict bleeding tendency appropriately. Operations in sites without fibrinolytic activity are less likely to be complicated by bleeding, while surgery in areas with fibrinolytic activity, like prostatectomy, increases the risk of
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- 2016
36. Hand-Assisted Laparoscopic Retroperitoneal Lymph Node Dissection for Nonseminomatous Testicular Cancer
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Csaba Tóth, E. Holman, Gabor Kovacs, Tibor Flaskó, János Vancsora, Csaba Maróti, and Morshed A. Salah
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Adult ,Male ,Reoperation ,medicine.medical_specialty ,medicine.medical_treatment ,Descending colon ,Abdominal wall ,Retroperitoneal lymph node dissection ,Testicular Neoplasms ,Laparotomy ,Humans ,Medicine ,Retroperitoneal space ,Retroperitoneal Space ,Testicular cancer ,business.industry ,Length of Stay ,Middle Aged ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Lymph Node Excision ,Abdomen ,Laparoscopy ,Lymph ,business ,Follow-Up Studies - Abstract
We describe our initial experience with hand-assisted laparoscopic retroperitoneal lymph node dissection for nonseminomatous testicular cancer.Between April 2002 and December 2004, 10 patients with testicular tumor were operated on, 6 on the right side and 4 on the left side. Eight patients were in clinical stage I, one patient was in clinical stage IIA, and one patient was in clinical stage IIB disease. Depending on the tumor site, a 6-7 cm mid-lower or -upper laparotomy was done, the HandPort (Smith and Nephew, Andover, MA) was placed in the abdominal wall, and the left hand of the surgeon was inserted into the abdomen. Four laparoscopic ports were also inserted. The ascending or descending colon was mobilized completely. The retroperitoneal lymph nodes were dissected and removed according to the modification of Weissbach and colleagues.The average operative time was 258 min (range, 150-432 min). One patient required re-operation because of postoperative bleeding. The average postoperative hospital stay was 3.5 (range, 3-10) days. Patients with stage IIA or IIB disease on histopathology received 2-3 courses of combined chemotherapy. Antegrade ejaculation was preserved in all patients. During follow-up that ranged from 9 to 36 months, there was no local recurrence or distant metastasis.Hand assistance makes the laparoscopic operation simpler, faster, and safer. A 6-7 cm muscle-splitting incision should be advantageous for patients compared to the xyphopubic laparotomy of the open procedure. To our knowledge this is the first report on hand-assisted laparoscopic retroperitoneal lymph node dissection.
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- 2007
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37. Large benign retroperitoneal tumour in pregnancy
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Peter Osvath, Tibor Flaskó, and Csaba Berczi
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Kidney ,Pregnancy ,medicine.medical_specialty ,medicine.diagnostic_test ,Adenoma ,business.industry ,Urology ,medicine.medical_treatment ,Magnetic resonance imaging ,Case Report ,medicine.disease ,Benign retroperitoneal tumour ,Malignancy ,Nephrectomy ,Surgery ,First trimester ,medicine.anatomical_structure ,Oncology ,medicine ,business - Abstract
A 31-year-old female was in the 13th week of pregnancy when an abdominal ultrasound examination revealed a large retroperitoneal tumour. Magnetic resonance imaging was carried out and the imaging described a 10-cm mass in diameter extending from the right kidney. Given that the patient was in her first trimester and that there was a suspicion of malignancy, further surgical exploration of the tumour was warranted. During the operation, the tumour was removed, but nephrectomy was not necessary. Histologic analysis of the resected tumour showed a mucinous cystic adenoma, and no signs of malignancy were present. Following the surgery, the pregnancy was otherwise uneventful and further complications did not occur. This case illustrates that surgery is recommended in patients with a retroperitoneal tumour early during a pregnancy, when a malignancy cannot be excluded.
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- 2015
38. Endopyelotomy in Childhood: Our Experience with 37 Patients
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Morshed A. Salah, Tibor Flaskó, Béla Tállai, Attila Varga, and Csaba Tóth
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Male ,medicine.medical_specialty ,Percutaneous ,Adolescent ,Urology ,medicine.medical_treatment ,Population ,Constriction, Pathologic ,Open pyeloplasty ,medicine ,Humans ,Kidney Pelvis ,Child ,education ,Retrospective Studies ,education.field_of_study ,business.industry ,Endoscopy ,medicine.disease ,Nephrectomy ,Surgery ,Catheter ,Stenosis ,medicine.anatomical_structure ,Child, Preschool ,Urologic Surgical Procedures ,Female ,business ,Renal pelvis ,Ureteral Obstruction ,Pediatric population - Abstract
Purpose: To evaluate our experience and results with endopyelotomy in the pediatric population. Patients and Methods: Between 1990 and 2002, we performed percutaneous antegrade endopyelotomy under general anesthesia in 37children because of ureteropelvic junction (UPJ) stricture. The youngest patient was 4.5 years and the oldest 17 years at the time of the procedure (mean age 11.5 years). One patient had bilateral stenosis; the two sides were operated on separately. After insertion of a 4F ureteral catheter and filling the collecting system with colored contrast material, a middle calix was punctured under fluoroscopic control. The tunnel was dilated to 26F by telescopic metal dilators. After insertion of a 0.035-inch gidewire through the UPJ, all its layers were cut by a cold knife in the dorsolateral direction so that the periureteral fatty tissue could be seen. Finally, the ureteral wound was stented by a 6F to 12F transrenal drain or a double-J catheter, which was removed after 6 weeks. Results: Among the 37 patients, the procedure had to be repeated in 1 because the transrenal drain stenting the UPJ slid back to the renal pelvis. We had to perform open pyeloplasty or nephrectomy in two patients because of bleeding or failed procedure. The average postoperative hospital stay was 6 days. Comparison of the preoperative intravenous urograms with studies performed 1 year after endopyelotomy showed an overall success rate of 89%. All patients are without complaints at the moment. Conclusions: In experienced hands, endopyelotomy is a safe and effective method for the treatment of UPJ stricture, not only in the adult, but also in the pediatric, population.
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- 2004
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39. Laparoscopic Removal of a Paracaval Air Gun Bullet in a Child
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Tibor Flaskó, Mihály Murányi, Mátyás Benyó, Morshed A. Salah, and Tamás Józsa
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Male ,Firearms ,medicine.medical_specialty ,Time Factors ,Urology ,Vena Cava, Inferior ,Computed tomography ,Klinikai orvostudományok ,Inferior vena cava ,medicine ,Humans ,Operation time ,Retroperitoneal Space ,Laparoscopy ,Foreign Bodies ,medicine.diagnostic_test ,business.industry ,Orvostudományok ,Left renal hilum ,medicine.disease ,Surgery ,medicine.vein ,Child, Preschool ,Wounds, Gunshot ,Gunshot wound ,Tomography, X-Ray Computed ,business ,Penetrating trauma - Abstract
Air guns are known as low-velocity arms and are considered harmless. However, injuries from air weapons can be serious and even fatal, particularly in children. We present a potentially life-threatening penetrating retroperitoneal injury of a 3-year-old boy caused by an air gun, and the successful removal of the bullet via a laparoscopic approach. The patient was brought to our center with a penetrating air gunshot wound on his right side in the waist area. He was accidentally shot by his brother at their home. The patient’s clinical condition was stable. Computed tomography scan showed the bullet in the retroperitoneum near the inferior vena cava. A three-port laparoscopic transperitoneal approach was performed. The bullet was found just 0.5 cm caudal to the right renal hilum and 0.5 cm near the inferior vena cava; it was then removed. Operation time was 42 min and the postoperative course was uneventful. Thanks to improvements in laparoscopic surgical techniques, laparoscopy has become a feasible and effective treatment modality even for the removal of foreign bodies in children.
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- 2012
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40. Acquired Hemophilia Caused by Ureteral Tumor
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Tibor Flaskó, Zoltán Boda, Csaba Berczi, Peter Osvath, and Katalin Rázsó
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Male ,medicine.medical_specialty ,Urology ,Hemophilia A ,Klinikai orvostudományok ,Immune tolerance ,hemic and lymphatic diseases ,Activated factor VII ,Medicine ,Humans ,Activated prothrombin complex concentrate ,Factor VIIIa ,Hematuria ,Ureteral Tumor ,medicine.diagnostic_test ,business.industry ,Ureteral Neoplasms ,Low activity ,Orvostudományok ,Middle Aged ,Surgery ,Oncology ,Hemostasis ,Acquired hemophilia ,Female ,business ,Partial thromboplastin time - Abstract
Acquired hemophilia is a rare and life-threatening disease that in some cases develops as a paraneoplastic syndrome of different malignancies. Acquired hemophilia caused by ureteral tumor has not been reported previously. The treatment of acquired hemophilia has 2 main goals: to achieve hemostasis during the bleeding period and to decrease the risk of bleeding by eradication of the inhibitor. We report a case of hematuria caused by ureteral tumor. Nephroureterectomy was performed, but continuous bleeding was observed after the operation. We thus administered blood transfusions and performed reoperations, but we could not stop the bleeding. Later, we realized that the prolonged activated partial thromboplastin time was caused by the low activity of factor VIII (2%), which indicated the presence of acquired hemophilia. We thus administered activated prothrombin complex concentrate and recombinant activated factor VII. Three months after the initial operation, an immune tolerance induction treatment was administered, after which the activity of factor VIII reverted to normal.
- Published
- 2015
41. [11C-choline PET/CT in the diagnosis of prostate cancer -- Hungarian experience]
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Ildikó, Garai, Bence, Farkas, Attila, Oszlánszki, Csaba, Berczi, Tibor, Flaskó, and László, Galuska
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Male ,Hungary ,Prostatic Neoplasms ,Middle Aged ,Choline ,Diagnosis, Differential ,Fluorodeoxyglucose F18 ,Positron-Emission Tomography ,Humans ,Carbon Radioisotopes ,Radiopharmaceuticals ,Tomography, X-Ray Computed ,Aged ,Retrospective Studies - Abstract
11C-choline has been used in the diagnosis and follow-up of patients with prostate cancer for years. Choline PET/CT has been available in human care since March, 2014 in our country. Unfortunately this examination has not been reimbursed by the National Health Insurance so far. We retrospectively analysed and assessed the results of 40 patients who underwent 11C-choline PET/CT on the basis of previous literature. As our study group was heterogeneous statistical analysis was not performed.A 11C-kolin-PET-et már több éve sikeresen alkalmazzák a prosztatarák diagnosztikájában és a betegkövetésben. Hazánkban 2014 márciusától van lehetõségünk 11C-kolin-PET/CT-vizsgálatokat végezni a humán betegellátásban, egyelõre csak magántérítéses formában. A jelen közleményben 40, 11C-kolin-PET/CT-vizsgálatra került férfibeteg adatait dolgoztuk fel retrospektíven és értékeltük az irodalom tükrében. Mivel a betegcsoport heterogén volt, csak esettanulmányt végeztünk, statisztikai analízis nem történt.
- Published
- 2014
42. A New Technical Approach for Extraperitoneal Laparoscopic Bladder Diverticulectomy
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György Tóth, Csaba Berczi, Antal Farkas, Tibor Flaskó, and Mátyás Benyó
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Adult ,Male ,medicine.medical_specialty ,Balloon ,digestive system ,Urologic Surgical Procedure ,otorhinolaryngologic diseases ,medicine ,Humans ,Laparoscopy ,Bladder diverticulum ,medicine.diagnostic_test ,business.industry ,Urinary Bladder Diseases ,Cystoscopy ,Perioperative ,medicine.disease ,digestive system diseases ,Surgery ,Diverticulum ,surgical procedures, operative ,Urologic Surgical Procedures ,Urinary bladder disease ,business - Abstract
In this paper, the authors report on a new, modified laparoscopic technique to remove a large bladder diverticulum. A 26-year-old male with a urinary problem underwent an ultrasound, as well as intravenous urography and cystoscopy examinations, which showed a large bladder diverticulum. The diverticulum was operated upon laparoscopically. The extraperitoneal laparoscopic intervention was facilitated by balloon placed into the diverticulum. The new technique for the laparoscopic diverticulumectomy procedure was successful and the operating time was 140 minutes. There were no perioperative complications. In conclusion, the laparoscopic removal of the bladder diverticulum is a safe and minimally invasive intervention. The introduction of a balloon into the diverticulum makes the operation easier.
- Published
- 2007
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43. Expression of miRNA-21 and miRNA-221 in clear cell renal cell carcinoma (ccRCC) and their possible role in the development of ccRCC
- Author
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Kristof Harda, Katalin Gombos, Zsuzsanna Szabó, Choudhury Mahua, Tibor Flaskó, Krisztián Szegedi, and Gabor Halmos
- Subjects
Adult ,Male ,0301 basic medicine ,Pathology ,medicine.medical_specialty ,Urology ,Kidney ,Real-Time Polymerase Chain Reaction ,03 medical and health sciences ,0302 clinical medicine ,Downregulation and upregulation ,Prostate ,microRNA ,Biomarkers, Tumor ,medicine ,Humans ,RNA, Neoplasm ,Carcinoma, Renal Cell ,Aged ,Bladder cancer ,business.industry ,Gyógyszerészeti tudományok ,Cancer ,Orvostudományok ,Middle Aged ,medicine.disease ,Kidney Neoplasms ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,MicroRNAs ,Clear cell renal cell carcinoma ,Cell Transformation, Neoplastic ,030104 developmental biology ,medicine.anatomical_structure ,Real-time polymerase chain reaction ,Oncology ,030220 oncology & carcinogenesis ,Female ,Neoplasm Grading ,business - Abstract
Clear cell renal cell carcinoma (ccRCC) is the third most common urological cancer after prostate and bladder cancer but has the highest rate of mortality affecting over 40% of patients. microRNAs (miRNAs) are small noncoding RNAs that have become potential biomarkers and molecular targets for cancer treatment. Molecular markers such as miRNAs may have a role in the diagnosis of ccRCC. In this study, we examined the expressions of miRNA-21 and miRNA-221 in renal cancer patients׳ tumor and adjacent paired normal tissues investigating the possible role of these miRNAs in the development of ccRCC.Renal tumors (n = 24) and paired normal renal tissue (n = 24) samples, obtained from the Department of Urology, University of Debrecen, were analyzed for miRNA-21 and miRNA-221 expressions with quantitative real-time polymerase chain reaction.miRNA-21 and miRNA-221 expressions were significantly up-regulated in tumor specimens compared to normal tissue (P0.05). miRNA-21 and miRNA-221 showed coexpression pattern in 19 (79.2%) cases of tumor samples and 8 (33.3%) cases of paired normal renal tissues. Increased miRNA pattern showed a positive correlation with pathological status of the patients.Expression of oncogenic miRNA-21 and miRNA-221 in human ccRCC tumor tissue samples compared to adjacent nontumorous tissues might suggest that these miRNAs are involved in the development of ccRCC.
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- 2016
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44. [Nondetectable prostate cancer in radical prostatectomy specimens]
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Csaba Tóth, Mátyás Benyó, Tibor Flaskó, Mihály Murányi, and Ali Salah Morshed
- Subjects
Gynecology ,Aged, 80 and over ,Male ,Prostatectomy ,medicine.medical_specialty ,Hungary ,business.industry ,medicine.medical_treatment ,Prostatic Hyperplasia ,Prostatic Neoplasms ,General Medicine ,Middle Aged ,Prostate-Specific Antigen ,medicine.disease ,Prostate cancer ,medicine ,Biomarkers, Tumor ,Humans ,Neoplasm staging ,business ,Aged ,Neoplasm Staging ,Retrospective Studies - Abstract
Since the widespread use of prostate-specific antigen, early diagnosis of prostate cancer at an early stage has been increased. Consequently, a greater frequency of low-volume disease or no tumor has been found in radical prostatectomy specimen. Aims: In the present study authors analyzed patients classified as pT0 after radical prostatectomy at their center. Methods: 1134 radical prostatectomies were evaluated retrospectively at the author’s center between 1996 and 2010. If there was no evidence of prostate cancer in the specimen, patient was staged as pT0. Patients were divided into two groups: received neoadjuvant hormonal therapy or not. Results: Overall 32 (2.8%) patients were staged as pT0. The rate of pT0 staging was 9.3% and 1.2% in the hormonally treated group and non-hormonally treated group. False-positive prostate biopsy was found in 2 cases. The rate of pT0 staging was higher in patients with incidental prostate cancer, low Gleason score and enlarged prostate. Biochemical relapse was observed in 3 pT0 patients in the hormonally treated group, among them there was one clinical relapse. In non-hormonally treated group no recurrence was detected. Conclusion: The rate of pT0 staging was higher in the hormonally treated group. Because of biochemical and clinical relapse despite vanishing prostate cancer phenomenon, these cases are considered not to be true pT0. On the basis of present study and other reports the rate of pT0 staging is about one percentage in non-hormonally treated patients. Prognosis of these patients is excellent. Orv. Hetil., 2012, 153, 113–117.
- Published
- 2012
45. Follow-up of thrombin generation after prostate cancer surgery: global test for increased hypercoagulability
- Author
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Zoltan Batta, Jolan Harsfalvi, Zsuzsanna Molnár, Mátyás Benyó, Tibor Flaskó, Adrienne Kerényi, and Tamás Józsa
- Subjects
Male ,medicine.medical_treatment ,Thrombin Signaling ,lcsh:Medicine ,Cardiovascular ,Fibrinogen ,Biochemistry ,Body Mass Index ,Molecular Cell Biology ,Thrombophilia ,Signaling in Cellular Processes ,Postoperative Period ,lcsh:Science ,Multidisciplinary ,Prostatectomy ,Prostate Cancer ,Thrombin ,Prostate Diseases ,Orvostudományok ,Venous Thromboembolism ,Middle Aged ,Clinical Laboratory Sciences ,Enzymes ,Blood Chemistry ,Medicine ,Research Article ,Signal Transduction ,Test Evaluation ,medicine.drug ,medicine.medical_specialty ,medicine.drug_class ,Urology ,Low molecular weight heparin ,Klinikai orvostudományok ,Statistics, Nonparametric ,Diagnostic Medicine ,D-dimer ,medicine ,Humans ,Radical surgery ,Biology ,Aged ,Hemostasis ,business.industry ,lcsh:R ,Prostatic Neoplasms ,Proteins ,Prostate-Specific Antigen ,medicine.disease ,Blood Cell Count ,Surgery ,lcsh:Q ,business ,Follow-Up Studies - Abstract
Recent studies provided evidence that evaluation of thrombin generation identifies patients at thrombotic risk. Thrombin generation has a central role in hemorrhage control and vascular occlusion and its measurement provides new metrics of these processes providing sufficient evaluation of an individual’s hemostatic competence and response to anticoagulant therapy. The objective of the study is to assess a new measure of hypercoagulability that predisposes to venous thromboembolism in the postoperative period after radical prostatectomy. Pre- (day-1) and postoperative (hour 1, day 6, month 1 and 10) blood samples of 24 patients were tested for plasma thrombin generation (peak thrombin), routine hematology and hemostasis. Patients received low molecular weight heparin for thromboprophylaxis. Peak thrombin levels were higher in patients compared to controls at baseline (p
- Published
- 2012
46. [The emotions of oncologists]
- Author
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Kornélia, Lazányi, Péter, Molnár, Antal, Bugán, Csongor, Kiss, János, Szántó, Andrea, Gonda, Zoltán, Tóth, Zoltán, Hernádi, Janaki, Hadijev, Eva, Remenyik, László, Damjanovich, Tamás, Dinya, Tibor, Flaskó, Péter, Bágyi, and Kornélia, Szluha
- Subjects
Adult ,Male ,Hungary ,Attitude of Health Personnel ,Health Personnel ,Physicians ,Surveys and Questionnaires ,Emotions ,Humans ,Female ,Middle Aged ,Medical Oncology - Abstract
Emotions are parts of organizational reality to an ever increasing extent. Importantly, they are not just tools in the hand of healthcare workers to achieve better physician / healthcare professional-to-patient interactions but intrinsic processes and characteristics with psychic, cognitive and somatic actions. For a thorough investigation of the issue, a PANAS-X questionnaire was used to examine the emotions of 187 physicians and other healthcare professionals, all engaged in oncology, in 2009. The research succeeded in exploring the overall emotional state oncology professionals had assumed in relation with their job as well as enabled the authors of this study to draw the respondents' emotional map and assess their fundamental emotional attitudes. Furthermore, the authors managed to identify groups of respondents that had felt more intense positive, and/or less intense negative emotions that are socially accepted than others. They included those of senior experienced oncologists, males, individuals with families, childless individuals, ward workers, and skilled professionals. According to the findings, the range of emotions an oncologist experiences / feels intently during his everyday work is dependent upon a great number of factors.
- Published
- 2011
47. Receptors for Luteinizing Hormone-Releasing Hormone (LHRH) in Benign Prostatic Hyperplasia (BPH) as Potential Molecular Targets for Therapy with LHRH Antagonist Cetrorelix
- Author
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Bernadett Rozsa, Andrew V. Schally, Gabor Halmos, Tibor Flaskó, Melinda Mile, Norman L. Block, Mehrdad Nadji, György Tóth, and Balazs Dezso
- Subjects
Male ,endocrine system ,medicine.medical_specialty ,Urology ,Prostatic Hyperplasia ,Peptide ,urologic and male genital diseases ,Binding, Competitive ,Gonadotropin-Releasing Hormone ,Radioligand Assay ,Hormone Antagonists ,Prostate ,Internal medicine ,medicine ,Humans ,Molecular Targeted Therapy ,RNA, Messenger ,Receptor ,Aged ,Aged, 80 and over ,chemistry.chemical_classification ,Reverse Transcriptase Polymerase Chain Reaction ,urogenital system ,business.industry ,Gyógyszerészeti tudományok ,Antagonist ,Orvostudományok ,Middle Aged ,Hyperplasia ,medicine.disease ,Immunohistochemistry ,medicine.anatomical_structure ,Endocrinology ,Oncology ,chemistry ,Benign prostatic hyperplasia (BPH) ,Luteinizing hormone ,business ,Receptors, LHRH ,hormones, hormone substitutes, and hormone antagonists ,Hormone - Abstract
BACKGROUND The majority of men will develop symptoms of benign prostatic hyperplasia (BPH) after 70 years of age. Various studies indicate that antagonists of LHRH, such as cetrorelix, exert direct inhibitory effects on BPH mediated by specific LHRH receptors. Our aim was to investigate the mRNA for LHRH and LHRH receptors and the expression of LHRH receptors in specimens of human BPH. METHODS The expression of mRNA for LHRH (n = 35) and LHRH receptors (n = 55) was investigated by RT-PCR in surgical specimens of BPH, using specific primers. The characteristics of binding sites for LHRH on 20 samples were determined by ligand competition assays. The LHRH receptor expression was also examined in 64 BPH specimens by immunohistochemistry. RESULTS PCR products for LHRH were found in 18 of 35 (51%) BPH tissues and mRNA for LHRH receptors was detected in 39 of 55 (71%) BPH specimens. Eighteen of 20 (90%) samples showed a single class of high affinity binding sites for [D-Trp6]LHRH with a mean Kd of 4.04 nM and a mean Bmax of 527.6 fmol/mg membrane protein. LHRH antagonist cetrorelix showed high affinity binding to LHRH receptors in BPH. Positive immunohistochemical reaction for LHRH receptors was present in 42 of 64 (67%) BPH specimens. CONCLUSION A high incidence of LHRH receptors in BPH supports the use of LHRH antagonists such as cetrorelix, for treatment of patients with lower urinary tract symptoms from BPH. Prostate 77:445–452, 2011. © 2010 Wiley-Liss, Inc.
- Published
- 2011
48. Expression of mRNA for human type-I LHRH receptor transcript forms in human benign prostatic hyperplasia
- Author
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Gabor Halmos, György Tóth, Balazs Dezso, Aliz Juhász, Andrew V. Schally, Tibor Flaskó, Bernadett Rozsa, Andrea Treszl, and Norman L. Block
- Subjects
Gene isoform ,Male ,endocrine system ,Cancer Research ,medicine.medical_specialty ,Transcription, Genetic ,Molecular Sequence Data ,Prostatic Hyperplasia ,Gene Expression ,Biology ,Exon ,Transcription (biology) ,Internal medicine ,Gene expression ,medicine ,Humans ,Protein Isoforms ,Elméleti orvostudományok ,RNA, Messenger ,Gene ,Aged ,Aged, 80 and over ,Messenger RNA ,Base Sequence ,Reverse Transcriptase Polymerase Chain Reaction ,Intron ,RNA ,Orvostudományok ,Middle Aged ,Molecular biology ,Endocrinology ,Oncology ,hormones, hormone substitutes, and hormone antagonists ,Receptors, LHRH - Abstract
The presence of four different isoforms of luteinizing hormone-releasing hormones (LHRH) and one LHRH receptor (LHRH-R) has been reported in vertebrates. In the human genome only LHRH-I and LHRH-II genes have been identified. The human LHRH-I gene is composed of four exons separated by three introns. Three LHRH receptor or receptor-like genes have been demonstrated. The well-established type-I LHRH receptor (LHRH-R-I) gene is composed of three exons separated by two introns. In this study we investigated the expression of transcript forms of LHRH-R-I in human benign prostatic hyperplasia (BPH) with reverse transcriptase-polymerase chain reaction (RT-PCR) using gene specific primers. Thirty-five human BPH specimens were obtained at surgery. Normal human pituitaries collected at autopsy served as control. RNA extraction and RT-PCR with gene-specific primers for LHRH-R-I forward (F1)/reverse (R1), LHRH-R-I F2/R3, LHRH-R-I F1'/R2' were carried out to determine the mRNA expression for LHRH-R-I transcript forms. The expected PCR products amplified with gene specific primers were LHRH-R-I F1/R1 with 319 bp, LHRH-R-I F2/R3 with 309 bp and LHRH-R-I F1'/R2' with 219 bp. PCR products for LHRH-R-I F1/R1 were detected in 21 (60%) and for LHRH-R-I F2/R3 in 5 of 35 (14%) BPH samples. No PCR products for LHRH-R-I F1'/R2' were found. In conclusion, we detected mRNA for LHRH-R-I in human BPH specimens. Our results suggest that LHRH-R-I gene may have more than two splice variants or uncharacterised transcript forms of LHRH-R-I. Our findings support the merit of further investigation of the expression of LHRH-R-I and its transcript forms in human BPH.
- Published
- 2009
49. Effect of hydrocele on appendix testis in children
- Author
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Andrea Telek, György Balla, Mátyás Benyó, Gábor Csanádi, Csongor Kiss, László Csernoch, Balázs Kutasy, Ilona Kovács, Tibor Flaskó, and Tamás Józsa
- Subjects
Male ,medicine.medical_specialty ,Pathology ,medicine.drug_class ,Urology ,Receptor expression ,Hydrostatic pressure ,Estrogen receptor ,Hernia, Inguinal ,Internal medicine ,Hydrocele ,Testis ,medicine ,Humans ,Hernia ,Elméleti orvostudományok ,Child ,business.industry ,Testicular Hydrocele ,Infant ,General Medicine ,Orvostudományok ,medicine.disease ,Androgen ,Appendix ,Endocrinology ,medicine.anatomical_structure ,Receptors, Estrogen ,Receptors, Androgen ,Child, Preschool ,Original Article ,business - Abstract
The purpose of this study was to investigate the effects of an elevated hydrostatic pressure of hydrocele on the structural integrity and steroid receptor expression pattern of the appendix testis in children. Twenty-six testicular appendages were obtained from boys (aged between 13 and 79 months, mean 40 months) who underwent surgical exploration because of hydrocele or congenital inguinal hernia. The tissue sections of testicular appendages were stained with hematoxylin-eosin. Immunohistochemistry and immunofluorescence laser microscopy were performed using monoclonal mouse anti-human receptors against androgen and estrogen receptors. Patients were divided into three groups: group A (n = 8) represented patients with groin hernia without hydrocele, who served as control group; group B (n = 7) represented patients with communicating hydrocele; and group C (n = 11) represented patients with noncommunicating hydrocele. The tissue sections of appendix testis expressed both androgen and estrogen receptors in all patients in groups A and B, and epithelial destruction was not present. The presence of androgen receptor (two of 11, P < 0.001) and estrogen receptor (four of 11, P = 0.006) was lower and the number of appendix testes with epithelial destruction was higher (eight of 11, P = 0.001) in group C. We demonstrated that groin hernia and communicating hydrocele did not influence the receptor expression pattern and the anatomic structure of testicular appendages, whereas noncommunicating hydrocele caused damage as indicated by the absence of steroid receptors and destruction of the epithelial surface. A better understanding of the physiological role of testicular appendages may change the indications of surgical treatment in patients with noncommunicating hydrocele.
- Published
- 2009
50. Percutaneous endoscopic ureterolithotomy of two different stones in a single session
- Author
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Csaba Tóth, Béla Tállai, Tibor Flaskó, Csaba Berczi, Laszlo Lorincz, and Miklós Szucs
- Subjects
medicine.medical_specialty ,Percutaneous ,Ureteral Calculi ,medicine.medical_treatment ,Lithotripsy ,urologic and male genital diseases ,Radiography, Interventional ,Extracorporeal ,Ureter ,Rare case ,Ureteroscopy ,Medicine ,Humans ,Renal stone ,medicine.diagnostic_test ,business.industry ,Middle Aged ,Surgery ,medicine.anatomical_structure ,Female ,business ,Single session - Abstract
The authors report a rare case of percutaneous endoscopic ureterolithotomy of 2 ureteral stones. Extracorporeal shock-wave lithotripsy (SWL) treatment of the renal stone was performed. The stone was crushed into 2 pieces, with 1 of them located in the upper part, and the other in the middle part of the ureter. Further SWL treatments and ureteroscopy were unsuccessful. The authors then decided to perform a percutaneous ureterolithotomy. In conclusion, percutaneous ureterolithotomy is a good choice of treatment, when ureteral stones cannot be removed by SWL or ureteroscopy.
- Published
- 2008
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