445 results on '"Pitoulias A"'
Search Results
52. Deep vein thrombosis as the first paraneoplastic presentation of undiagnosed cancer
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Dimitrios A. Chatzelas, Apostolos G. Pitoulias, Zisis C. Telakis, Thomas E. Kalogirou, Maria D. Tachtsi, Dimitrios C. Christopoulos, and Georgios A. Pitoulias
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deep vein thrombosis, cancer, paraneoplastic syndrome, computed tomography, diagnosis - Abstract
Introduction: Epidemiological studies reported a mean 4-12% prevalence of unrecognized cancer in patients with unprovoked deep vein thrombosis (DVT). The objective of our study was to assess the relation between unprovoked DVT and first diagnosis of a previously undiagnosed cancer and to investigate if it is justified to routinely screen these patients for malignancy with computed tomography (CT) scan. Methods: We performed a retrospective analysis of medical records data of 276 patients with unprovoked extremity DVT admitted from 2015 to 2021. All patients underwent basic laboratory exams and a contrast enhanced CT scan of thorax, abdomen and pelvis with the purpose of screening for an occult, underlying tumor. Results: In 46 patients (16.7%) a tumor was detected with malignancy confirmed in 37 cases (13.4%). In the majority (64.8%) the diagnosed tumor was confined to the primary organ with no or limited lymph node metastasis. In 16.2% the tumor was at advanced, metastatic stage. Lung (24.3%) and kidney (21.6%) were the most frequent primary locations, followed by colorectal (16.2%) and pancreatic (13.5%) cancer. Conclusion: Patients presenting with unprovoked DVT have a relatively high possibility of an underlying malignancy, indicating that high level of medical awareness is advised. Routine screening of these patients with CT scan may be helpful for the early diagnosis of cancer.  
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- 2022
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53. Ferric quinate (QPLEX) inhibits the interaction of major outer membrane protein (MOMP) with the Lewis b (Leb) antigen and limits Campylobacter colonization in broilers
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Okoye, Jennifer C., Holland, Alexandria, Pitoulias, Matthaios, Paschalis, Vasileios, Piddubnyi, Artem, Dufailu, Osman A., Boren, Thomas, Oldfield, Neil J., Mahdavi, Jafar, Soultanas, Panos, Okoye, Jennifer C., Holland, Alexandria, Pitoulias, Matthaios, Paschalis, Vasileios, Piddubnyi, Artem, Dufailu, Osman A., Boren, Thomas, Oldfield, Neil J., Mahdavi, Jafar, and Soultanas, Panos
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Campylobacter jejuni colonizes hosts by interacting with Blood Group Antigens (BgAgs) on the surface of gastrointestinal epithelia. Genetic variations in BgAg expression affects host susceptibility to C. jejuni. Here, we show that the essential major outer membrane protein (MOMP) of C. jejuni NCTC11168 binds to the Lewis b (Leb) antigen on the gastrointestinal epithelia of host tissues and this interaction can be competitively inhibited by ferric quinate (QPLEX), a ferric chelate structurally similar to bacterial siderophores. We provide evidence that QPLEX competitively inhibits the MOMP-Leb interaction. Furthermore, we demonstrate that QPLEX can be used as a feed additive in broiler farming to significantly reduce C. jejuni colonization. Our results indicate that QPLEX can be a viable alternative to the preventative use of antibiotics in broiler farming to combat C. jejuni infections.
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- 2023
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54. Periprocedural Outcomes of Rotational Atherectomy-Assisted Balloon Angioplasty in Isolated Atherosclerotic Popliteal Artery Lesions: The ISO-POP Trial
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Donas, Konstantinos P., primary, Psyllas, Anastasios, additional, Pitoulias, Apostolos G., additional, Kazemtash, Majid, additional, Dahi, Firouza, additional, Abu Bakr, Nizar, additional, and Korosoglou, Grigorios, additional
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- 2023
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55. The Replicative DnaE Polymerase of Bacillus subtilis Recruits the Glycolytic Pyruvate Kinase (PykA) When Bound to Primed DNA Templates
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Holland, Alexandria, primary, Pitoulias, Matthaios, additional, Soultanas, Panos, additional, and Janniere, Laurent, additional
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- 2023
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56. Ferric quinate (QPLEX) inhibits the interaction of major outer membrane protein (MOMP) with the Lewis b (Leb) antigen and limits Campylobacter colonization in broilers
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Okoye, Jennifer C., primary, Holland, Alexandria, additional, Pitoulias, Matthaios, additional, Paschalis, Vasileios, additional, Piddubnyi, Artem, additional, Dufailu, Osman A., additional, Borén, Thomas, additional, Oldfield, Neil J., additional, Mahdavi, Jafar, additional, and Soultanas, Panos, additional
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- 2023
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57. The replicative DnaE polymerase of $Bacillus\ subtilis$ recruits the glycolytic Pyruvate Kinase (PykA) when bound to primed DNA templates
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Alexandria Holland, Matthaios Pitoulias, Panos Soultanas, Laurent Janniere, University of Nottingham, UK (UON), Génomique métabolique (UMR 8030), Genoscope - Centre national de séquençage [Evry] (GENOSCOPE), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université d'Évry-Val-d'Essonne (UEVE)-Centre National de la Recherche Scientifique (CNRS), and BBSRC
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microbiology ,metabolism ,replication ,PykA ,DnaE ,moonlighting activity ,Space and Planetary Science ,[SDV]Life Sciences [q-bio] ,Paleontology ,General Biochemistry, Genetics and Molecular Biology ,Ecology, Evolution, Behavior and Systematics - Abstract
International audience; The glycolytic enzyme PykA has been reported to drive the metabolic control of replication through a mechanism involving PykA moonlighting functions on the essential DnaE polymerase, the DnaC helicase and regulatory determinants of PykA catalytic activity in Bacillus subtilis. The mutants of this control suffer from critical replication and cell cycle defects, showing that the metabolic control of replication plays important functions in the overall rate of replication. Using biochemical approaches, we demonstrate here that PykA interacts with DnaE for modulating its activity when the replication enzyme is bound to a primed DNA template. This interaction is mediated by the CAT domain of PykA and possibly allosterically regulated by its PEPut domain, which also operates as a potent regulator of PykA catalytic activity. Furthermore, using fluorescence microscopy we show that the CAT and PEPut domains are important for the spatial localization of origins and replication forks, independently of their function in PykA catalytic activity. Collectively, our data suggest that the metabolic control of replication depends on the recruitment of PykA by DnaE at sites of DNA synthesis. This recruitment is likely highly dynamic, as DnaE is frequently recruited to and released from replication machineries to extend the several thousand RNA primers generated from replication initiation to termination. This implies that PykA and DnaE continuously associate and dissociate at replication machineries for ensuring a highly dynamic coordination of the replication rate with metabolism.
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- 2023
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58. Effects of SARS-COVID-19 Infection on the Cardiovascular System
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null Tachtosglou Kiriaki, null Pitoulias Georgios, null Iliadis Christos, null Frantzana Aikaterini, and null Kourkouta Lambrini
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- 2023
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59. Using Serum Biomarkers for Identifying Unstable Carotid Plaque: Update of Current Evidence
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Konstantinos Tziomalos, Georgios A. Pitoulias, Apostolos G. Pitoulias, Areti Sofogianni, Lemonia Skoura, and Triantafyllia Koletsa
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Carotid Artery Diseases ,Pharmacology ,Carotid atherosclerosis ,medicine.medical_specialty ,business.industry ,Ischemic strokes ,Inflammation ,medicine.disease ,Plaque, Atherosclerotic ,Stroke ,Carotid Arteries ,Risk Factors ,Serum biomarkers ,Internal medicine ,Drug Discovery ,Cardiology ,Humans ,Medicine ,cardiovascular diseases ,medicine.symptom ,business ,Biomarkers - Abstract
Carotid atherosclerosis is responsible for a great proportion of ischemic strokes. Early identification of unstable or vulnerable carotid plaques, and therefore, of patients at high risk for stroke, is of significant medical and socioeconomical value. We reviewed the current literature and discussed the potential role of the most important serum biomarkers in identifying patients with carotid atherosclerosis who are at high risk for atheroembolic stroke.
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- 2021
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60. Early Results of Elective Endovascular Repair of Infrarenal Abdominal Aortic Aneurysms With the MinosTM Stent-Graft System
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Georgios A. Pitoulias, Apostolos G. Pitoulias, Dimitrios A. Chatzelas, Theodosia Zampaka, Charalampos Loutradis, Anastasios Potouridis, and Maria D. Tachtsi
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Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine - Abstract
Purpose: A variety of last-generation endografts are currently available for standard endovascular repair (EVAR) of infrarenal abdominal aortic aneurysms (AAAs). The purpose of this study is to report the preliminary clinical outcomes of the Minos trimodular stent-graft system, which was recently introduced to the European market. Materials and Methods: Between February 2020 and 2022, we treated 41 consecutive AAA patients (mean age 72.2±8.5, 37 males) with elective standard EVAR using the Minos. The mean maximum diameter of AAAs was 54.7±6.6 mm, the mean proximal neck’s (PN) diameter was 24.8±2.7 mm, while the relevant length and angulation were 16.0 mm and 21.7°, respectively. Overall, 22 (53.6%) patients presented with shorter and angulated PN, according to the stent-graft’s instructions of use, and in 6 (14.6%) patients the PN angulation >60° was combined with concomitant iliac angulation >60°. Eleven (26.8%) EVARs were performed with concomitant enormous iliac artery narrowing and tortuosity. Finally, in 19 (46.3%) AAAs, the distal iliac landing zone was aneurysmatic and they were treated with the bell-bottom technique in 17 patients and with limb extension to the external iliac artery in two cases. We evaluated technical and clinical success of the index procedures, which was based on the combination of five factors: freedom from EVAR-related mortality, from graft-related endoleak of any type, from migration at any part of graft as well the absence of notable increase AAA’s sac maximum diameter and the patency of bifurcated stent-graft and of access vessels. Results: Primary technical and clinical success of index procedures was 100%. During a median 12-month radiological follow-up the clinical success remained 100%. No type I or III endoleak, stent-graft migration, EVAR-related death, AAA rupture, or graft-related adverse events or reinterventions were documented. Four (9.8%) type II endoleaks were detected with stable AAA sac diameter. The overall incidence of sac regression was 34.1% (n=14). Conclusion: The preliminary results of our series showed that Minos provided excellent feasibility and safety features even through angulated and tortuous iliac vessels and in short and angulated PNs. The overall clinical success at 1 year suggests that performance of Minos follows very high standards. Further validation of these promising results with long-term data is acquired to complete the evaluation of this recently introduced stent-graft system. Clinical Impact The current study explored the clinical performance of a new in market ultra-low profile bifurcated abdominal aortic stent-graft, the MINOS. The early and 12-month results of study suggest that implantation of this stent-graft in standard EVAR, even in hostile proximal aortic neck and iliac vessels conditions, follows very high clinical standards and encourage the further clinical use of MINOS.
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- 2023
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61. Ultrasonography in the diagnosis of pelvic vein insufficiency, a systematic review and meta-analysis.
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Pitoulias, Apostolos G., Andrioti Petropoulou, Nefeli, Bontinis, Vangelis, Chatzelas, Dimitrios A., Bontinis, Alkis, Thano, Adriana, and Pitoulias, Georgios A.
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DIAGNOSTIC ultrasonic imaging , *TRANSVAGINAL ultrasonography , *SENSITIVITY & specificity (Statistics) , *ULTRASONIC imaging , *VEINS - Abstract
To perform a systematic review and meta-analysis to investigate the efficacy of ultrasonography in the diagnosis of pelvic vein insufficiency (PVI).Seven studies comprised of 802 patients were included. Of these studies, 5 utilised transvaginal ultrasound (TVU), 1 utilised transabdominal ultrasound (TAU) and 1 utilised both ultrasounds as diagnostic tool .The overall pooled sensitivity and specificity was 0.96 and 0.84 respectively. The sensitivity and specificity for TVU were 0.96 and 0.86. The pooled sensitivities between studies employing a <7 mm cutoff in pelvic veins’ diameter (PVD) and those employing a >7 mm threshold were 0.99 and 0.94 while the pooled specificities were 0.75 and 0.96 respectively.The evidence supports the efficacy of ultrasonography in the diagnosis of PVI. A threshold of up to 6 mm in PVD yielded excellent sensitivity outcomes, but it is at the expense of specificity. This meta analysis suggests that a PVD threshold of 7 mm should be employed as a cutoff point in the diagnosis of PVI, displaying both excellent sensitivity and specificity outcomes. [ABSTRACT FROM AUTHOR]
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- 2025
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62. Conical neck is strongly associated with proximal failure in standard endovascular aneurysm repair
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Pitoulias, Georgios A., Valdivia, Andrés Reyes, Hahtapornsawan, Suteekhanit, Torsello, Giovanni, Pitoulias, Apostolos G., Austermann, Martin, Gandarias, Claudio, and Donas, Konstantinos P.
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- 2017
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63. No Difference in Neck Enlargement for Patients Treated With Double Proximal Self-Expandable Suprarenal Fixation Endografting
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Reyes Valdivia, Andrés, Pitoulias, Georgios, Duque Santos, África, Fabregate Fuente, Martín, Pitoulias, Apostolos G., Ocaña Guaita, Julia, and Gandarias, Claudio
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- 2017
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64. Bilateral Use of Iliac Branch Devices for Aortoiliac Aneurysms Is Safe and Feasible, and Procedural Volume Does Not Seem to Affect Technical or Clinical Effectiveness: Early and Midterm Results From the pELVIS International Multicentric Registry
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D'Oria, M., Pitoulias, G. A., Torsello, G. F., Pitoulias, A. G., Fazzini, S., Masciello, F., Verzini, F., Donas, K. P., Taneva, G. T., Austermann, M., Bosiers, M., Dorigo, W., Cao, P., Ferrer, C., Ippoliti, A., Barbante, M., Parlani, G., Simonte, G., Kolbel, T., Tsilimparis, N., Haulon, S., Branzan, D., Schmidt, A., Pratesi, C., Fargion, A., Pratesi, G., D'Oria, M, Pitoulias, Ga, Torsello, Gf, Pitoulias, Ag, Fazzini, S, Masciello, F, Verzini, F, and Donas, Kp
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medicine.medical_specialty ,business.industry ,Clinical effectiveness ,medicine.disease ,Abdominal aortic aneurysm ,Center volume ,abdominal aortic aneurysm ,aortoiliac disease ,center volume ,iliac branch device ,Settore MED/22 ,medicine.anatomical_structure ,medicine ,Radiology, Nuclear Medicine and imaging ,Surgery ,Radiology ,Cardiology and Cardiovascular Medicine ,business ,Aortoiliac disease ,Pelvis ,Volume (compression) - Abstract
Objective To evaluate early and follow-up outcomes following bilateral use of iliac branch devices (IBD) for aortoiliac endografting and assess the impact of center volume. We used data from the pELVIS international multicentric registry. Methods For the purpose of this study, only those patients receiving concomitant bilateral IBD implantation were analyzed. To assess the impact that procedural volume of bilateral IBD implantation could have on early and follow-up outcomes, participating institutions were classified as Site(s) A if they had performed >10 and/or >20% concomitant bilateral IBD procedure, otherwise they were classified as Site(s) B. Endpoints of the analysis included early (ie, 30-day) mortality and morbidity, as well as all-cause and aneurysm-related mortality during follow-up. Additional endpoints that were evaluated included IBD-related reinterventions, IBD occlusion or stenosis requiring reintervention (ie, loss of primary patency), and IBD-related type I endoleak. Results Overall, 96 patients received bilateral IBD implantation (out of 910 procedures collected in the whole pELVIS cohort), of whom 65 were treated at Site A (ie, Group A) and 31 were treated at Site(s) B (ie, Group B). In total, only 1 death occurred within 30 days from bilateral IBD implantation, and 9 patients experienced at least 1 major complication without any significant difference between subjects in Group A versus those in Group B (10.8% vs 6.5%, p=0.714). In the overall cohort, the 2-year freedom from IBD-related type I endoleaks and IBD primary patency were 96% and 92%, respectively; no significant differences were seen in those rates between Group A or Group B (95% vs 100%, p=0.335; 93% vs 88%, p=0.470). Freedom from any IBD-related reinterventions was 83% at 2 years, with similar rates between study groups (85% vs 83%, p=0.904). Conclusions Within the pELVIS registry, concomitant bilateral IBD implantation is a safe and feasible technique for management of aortoiliac aneurysms in patients with suitable anatomy. Despite increased technical complexity, effectiveness of the repair is satisfactory with low rates of IBD-related adverse events at mid-term follow-up. Procedural volume does not seem to affect technical or clinical outcomes after bilateral use of IBD, which remains a favorable treatment option in selected patients.
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- 2021
65. Von Gierke Disease (Glycogen Storage Disease Type I) and Life-Threatening Abdominal Aortic Aneurysm: A Case Report of an Extremely Rare Condition
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Pitoulias, Apostolos G, Bakr, Nizar Abu, Kazemtash, Majid, Dahi, Firouza, Schütz, Michael, and Donas, Konstantinos P
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610 Medicine & health - Abstract
Von Gierke disease, also known as glycogen storage disease type I, co-existent with an abdominal aortic aneurysm (AAA), is an extremely rare combination of diseases that requires challenging therapeutic measures. We present, for the first time in literature, the case of a 62-year-old female with von Gierke disease who required open surgical repair of an AAA with challenging neck anatomy outside of instructions for use of endovascular repair. Even though the surgical risks for life-threatening complications, such as pancreatitis, metabolic acidosis, and kidney failure, were high, the 6-month postoperative course was uneventful. Despite the invasiveness of the treatment, surgery to treat the AAA was safe and effective. Further data is needed to draw robust conclusions about the treatment of choice for those patients with diseases in co-existence with AAAs.
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- 2023
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66. Different endovascular modalities of treatment for isolated atherosclerotic popliteal artery lesions (EMO-POP) registry
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Troisi, Nicola, primary, Saratzis, Athanasios, additional, Katsogridakis, Emmanuel, additional, Stavroulakis, Konstantinos, additional, Berchiolli, Raffaella, additional, Zayed, Hany, additional, Torsello, Giovanni, additional, Brunschot, Denise Özdemir-van, additional, González, Teresa Martín, additional, Denisselle, Thomas, additional, Korosoglou, Grigorios, additional, Isernia, Giacomo, additional, Michelagnoli, Stefano, additional, Giordano, Antonio Nicola, additional, Daonas, Konstantinos P., additional, Pitoulias, Apostolos G., additional, Spiliopoulos, Stavros, additional, Martelli, Massimiliano, additional, Settembrini, Alberto Maria, additional, and D’Oria, Mario, additional
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- 2023
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67. Contrast-enhanced ultrasonography of the carotids
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Vasileios Rafailidis, Georgios Pitoulias, Konstantinos Kouskouras, and Dimitrios Rafailidis
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Contrast media ,Carotid stenosis ,Plaque, atherosclerotic ,Ultrasonography, Doppler, color ,Medical technology ,R855-855.5 - Abstract
Contrast-enhanced ultrasonography of the carotids has recently emerged as a complementary examination to conventional carotid Doppler ultrasonography. It is an examination providing improved visualization of the vascular lumen, more accurate and detailed delineation of the vascular wall, and identification of atherosclerotic plaques. Moreover, contrast-enhanced ultrasonography has specific advantages over conventional ultrasonography and plays an important role in the diagnosis of the vulnerable carotid plaque, as it can identify intraplaque neovascularization and carotid plaque ulceration. Given the specific advantages and improved imaging of the carotids provided by this method, radiologists should be familiar with it. This pictorial essay illustrates the advantages of this technique and discusses its value in the imaging of carotid arteries.
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- 2015
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68. Endovascular Treatment of a Giant Renal Artery Aneurysm with High-Flow Renal Arteriovenous Malformation
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Pitoulias, Apostolos G., primary, Pitoulias, Georgios A., additional, Chatzelas, Dimitrios A., additional, Zampaka, Theodosia, additional, Kalogirou, Thomas E., additional, Potouridis, Anastasios, additional, Loutradis, Charalampos, additional, and Tachtsi, Maria D., additional
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- 2022
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69. Incidence and risk factors of postimplantation syndrome after elective endovascular aortic aneurysm repair
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CHATZELAS, Dimitrios A., primary, PITOULIAS, Apostolos G., additional, TELAKIS, Zisis C., additional, KALOGIROU, Thomas E., additional, TACHTSI, Maria D., additional, CHRISTOPOULOS, Dimitrios C., additional, and PITOULIAS, Georgios A., additional
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- 2022
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70. Incidence and risk factors of postimplantation syndrome after elective endovascular aortic aneurysm repair
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Dimitrios A. CHATZELAS, Apostolos G. PITOULIAS, Zisis C. TELAKIS, Thomas E. KALOGIROU, Maria D. TACHTSI, Dimitrios C. CHRISTOPOULOS, and Georgios A. PITOULIAS
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Time Factors ,Incidence ,Polyesters ,Endovascular Procedures ,Thrombosis ,Syndrome ,Blood Vessel Prosthesis Implantation ,Treatment Outcome ,Risk Factors ,Humans ,Stents ,Cardiology and Cardiovascular Medicine ,Aortic Aneurysm, Abdominal ,Retrospective Studies - Abstract
Postimplantation syndrome (PIS) represents an acute phase systemic inflammatory response following endovascular aortic aneurysm repair (EVAR). Our objective was to investigate the risk factors associated with the manifestation and severity of PIS with various available stent-grafts.We performed a retrospective analysis of prospectively collected data covering the period 2016-2020. The study included 191 patients. Body temperature was recorded regularly and blood sample was obtained daily. The imaging protocol included computed tomography aortoiliac angiography before surgery and one month after. The volumes of pre-existing and new-onset mural thrombus were calculated in a semi-automated fashion. Five abdominal aortic stent-graft devices were used: Endurant™ ΙΙ, Anaconda™, TreoThe incidence of PIS was 21.5%. No significant differences were observed regarding demographics, risk factors, aneurysm anatomy or operative data. The amount of pre-existing and new-onset mural thrombus were not related with PIS (P=0.117 and P=0.096). PIS incidence in the polyester subgroup was 24.2%, significantly higher compared to 8.3% in the ePTFE subgroup. In-subgroup analysis revealed that the use of Anaconda™ was associated with the higher frequency (61.1%, P=0.021). Multivariate logistic regression showed that polyester was the single factor significantly associated with PIS (hazard ratio=2.6, P=0.043), as opposed to the new onset thrombus (hazard ratio=1.29, P=0.101).PIS is not uncommon and should be taken into consideration in patients presenting with fever after EVAR. The endograft's liner material seems to play the primordial role, with woven polyester to be attributed with significantly higher incidence.
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- 2022
71. The role of atherectomy in BTK lesions: a systematic review
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Georgios A. Pitoulias and Apostolos G. Pitoulias
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medicine.medical_specialty ,Atherectomy ,Time Factors ,medicine.medical_treatment ,Balloon ,Risk Assessment ,Peripheral Arterial Disease ,Risk Factors ,Angioplasty ,Internal medicine ,medicine ,Humans ,Bruton's tyrosine kinase ,Adverse effect ,Lead (electronics) ,Vascular Patency ,Leg ,biology ,business.industry ,Arteries ,General Medicine ,Perioperative ,Treatment Outcome ,biology.protein ,Surgery ,Observational study ,Cardiology and Cardiovascular Medicine ,business - Abstract
INTRODUCTION To evaluate the current role of atherectomy techniques (ATH) in treatment of peripheral arterial disease (PAD) at below the knee (BTK) arteries. EVIDENCE ACQUISITION The PubMed and Embase were searched (last search on 11 September 2021) for studies reporting on the early and mid-term outcomes of ATH in BTK vessels. Analysis included the data from six studies, with a total of 1062 PAD patients treated with various ATH techniques. We compared them the ATH outcomes with the contemporaneous outcomes of plain balloon angioplasty alone or with bailout stenting. Early safety and efficacy were accessed with perioperative and 30-day technical success rate, which included the primary patency of the treated BTK arterial segment. Evaluation of clinical performance was based on target limb revascularization (TLR) and on major limb adverse events (MALEs) rates. EVIDENCE SYNTHESIS The current body of literature mainly includes retrospective observational studies, and the level of derived evidence is low. The mean perioperative and 30-day technical success rate was 87.3%. The mean reported TLR and MALEs rates at 12 months were 6.6% and 4.7% respectively. The relevant rates in studies reporting at 24 months were 24.3% and 31.7% while in studies reporting at 36 months the rates were 37.0% and 23.0% respectively. CONCLUSIONS Based in low-quality evidence, it seems that ATH in BTK vessels has a high safety, high efficacy profile and durable outcomes at 12 months. In the midterm, the clinical success of ATH is compromised by increased TLR and MALEs rates. Comparison of ATH with other endovascular techniques in BTK treatment of PAD shows a slight lead of ATH at 1-year and equivalent clinical performance in the mid-term. Overall, ATH has a significant and potentially predominant role in treatment of BTK vessels.
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- 2022
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72. Long-term Evaluation of Proximal Aortic Neck Dilatation After Endovascular Abdominal Aortic Aneurysm Repair With a Variety of Contemporary Endografts
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Dimitrios A. Chatzelas, Apostolos G. Pitoulias, Charalampos N. Loutradis, Theodosia N. Zampaka, Christos D. Karkos, Dimitrios C. Christopoulos, and Georgios A. Pitoulias
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Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine - Abstract
Purpose: To measure the long-term proximal aortic neck dilatation (AND) after elective endovascular aortic aneurysm repair (EVAR) with a variety of contemporary, third-generation, endograft devices. Materials and Methods: This is a noninterventional prospective cohort study of 157 patients that underwent standard EVAR with self-expanding abdominal endografts. Patients’ recruitment lasted from 2013 to 2017, and postoperative follow-up was up to 5 years. A computed tomography angiography (CTA) was performed at the first month and then at 1, 2, and 5 years. Proximal aortic neck’s (PAN) basic morphological characteristics (diameter, length, angulation) were measured based on the analysis of CTA in a standardized fashion. Neck-related adverse events, such as migration, endoleak or rupture, and reinterventions were recorded. Results: Significant straightening of the PAN was evident even in the first-month CTA with concurrent neck shortening that became significant at 5 years. Both the suprarenal aorta and the PAN significantly dilated overtime, with PAN dilating more progressively. Mean neck dilatation at the juxtarenal level was 0.8±0.4 mm at 1 year, 1.8±0.8 mm at 2 years, and 3.9±1.7 mm at 5 years, with a mean neck dilatation rate of 0.07 mm/month overall. The incidence of AND ≥2.5 mm was 37.2% at 2 years and 58.1% at 5 years after EVAR and was considered important (≥5 mm) in 11.5% of patients at 2 years and 30.6% of patients at 5 years. A multivariate analysis performed showed that the endograft oversizing, the preoperative neck diameter, and the preoperative abdominal aortic aneurysm sac diameter served as independent predictors of AND at 5 years. At the 5-year follow-up, 8 late type Ia endoleaks (6.5%) and 7 caudal migrations (5.6%) were identified, while no late ruptures were reported. In total, 11 late endovascular reinterventions (8.9%) were performed. Overall, proximal neck-related adverse outcomes (5/7 migrations and 5/8 endoleaks) and reinterventions (7/11) were significantly associated with the presence of important late AND. Conclusion: Proximal AND after EVAR is common. It can influence the long-term durability of proximal endograft fixation and is significantly associated with adverse outcomes, often leading to reinterventions. A systemic and extended surveillance protocol is needed for maintenance of good long-term results. Clinical Impact This is a thorough and systematic analysis of the long-term geometric remodeling of the proximal aortic neck after EVAR, that highlights the importance of a strict, and extended surveillance protocol for maintenance of good long-term results of EVAR.
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- 2023
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73. A systematic review and meta-analysis of proximal aortic neck dilatation after endovascular abdominal aortic aneurysm repair
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Dimitrios A. Chatzelas, Charalampos N. Loutradis, Apostolos G. Pitoulias, Thomas E. Kalogirou, and Georgios A. Pitoulias
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Surgery ,Cardiology and Cardiovascular Medicine - Abstract
To provide an updated systematic literature review summarizing current evidence on aortic neck dilatation (AND) after endovascular aortic aneurysm repair (EVAR) in patients with infrarenal abdominal aortic aneurysm.An extensive electronic search in major electronic databases was conducted between January 2000 and December 2021. Eligible for inclusion were observational studies that followed up with patients (n ≥ 20) undergoing EVAR with self-expanding endografts, for 12 or more months, evaluated AND with computed tomography angiography and provided data on relevant outcomes. The primary end point was the incidence of AND after EVAR, and the secondary end points were the occurrence of type Ia endoleak, stent graft migration, secondary rupture, and reintervention.We included 34 studies with a total sample of 12,038 patients (10,413 men; median age, 71 years). AND was defined clearly in 18 studies, but significant differences in AND definition were evidenced. The pooled incidence of AND based on quantitative analysis of 16 studies with a total of 9201 patients (7961 men; median age, 72 years) was calculated at 22.9% (95% confidence interval [CI], 14.4-34.4) over a follow-up period ranging from 12 months to 14 years. The risk of a type Ia endoleak was significantly higher in AND patients compared with those without AND (odds ratio, 2.95; 95% CI, 1.10-7.93; P = .030). Similarly, endograft migration was more common in the AND group compared with the non-AND group (odds ratio, 5.95; 95% CI, 1.80-19.69; P = .004). The combined incidence of secondary rupture and reintervention did not differ significantly between the two groups, even though the combined effect was in favor of the non-AND group.Proximal AND after EVAR is common and occurs in a large proportion of patients with infrarenal abdominal aortic aneurysm. AND can influence the long-term durability of proximal endograft fixation and is significantly related to adverse outcomes, often leading to reinterventions.
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- 2023
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74. The role of atherectomy in BTK lesions: a systematic review
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PITOULIAS, Apostolos G., primary and PITOULIAS, Georgios A., additional
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- 2022
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75. The Effect of EndoAnchors on Aneurysm Sac Regression for Patients Treated With Infrarenal Endovascular Repair With Hostile Neck Anatomies
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Andrés Reyes Valdivia, Kyriakos Oikonomou, Ross Milner, Piotr Kasprzak, Michel M. P. J. Reijnen, Georgios Pitoulias, Giovanni B. Torsello, Karin Pfister, Jean-Paul P. M. de Vries, Arindam Chaudhuri, TechMed Centre, and Multi-Modality Medical Imaging
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EndoAnchors ,endovascular procedure ,abdominal ,endoleak ,Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine ,sac regression ,aortic aneurysm ,n/a OA procedure - Abstract
Purpose: To analyze sac evolution patterns in matched patients with hostile neck anatomy (HNA) treated with standard endovascular aneurysm repair (sEVAR) and endosutured aneurysm repair (ESAR). Methods: Observational retrospective study using prospectively collected data between June 2010 and December 2019. ESAR group data were extracted from the primary arm of the PERU registry with an assigned identifier (NCT04100499) at 8 centers and those from the sEVAR came from 4 centers. Suitability for inclusion required: no proximal endograft adjuncts (besides EndoAnchor use), ≤15 mm neck length and minimum of 12-months follow-up imaging. Bubble-shaped neck (noncylindrical short neck with discontinuous seal) aspect was analyzed. Both groups were analyzed using propensity score matching (PSM) for aortic neck length, width, angulation, and device fixation type. Main outcome assessed was sac evolution patterns (sac expansion and regression were defined as >5mm increase or decrease, of the maximum sac diameter respectively; all AAAs within this ±5 mm range in diameter change were considered stable) and secondary outcomes were type-Ia endoleaks; other endoleaks and mortality. A power analysis calculation >80% was confirmed for sac regression evaluation. Results: After exclusions, PSM resulted in 96 ESAR and 96 sEVAR patients. Mean imaging follow-up (months) was 44.4±21.3 versus 43.0±19.6 (p=0.643), respectively. The overall number of patients achieving sac regression was higher in the ESAR group ( n=57, 59.4% vs n=31, 32.3%; pConclusion: Endosutured aneurysm repair provided improved rates of sac regression for patients with AAA and HNA when compared with sEVAR at midterm and up to 5 years, despite similar rates of type-Ia endoleaks, and the need to consider some important limitations. The presence of bubble-shaped neck was a predictor of sac regression failure for both groups equally. Clinical Impact The use of EndoAnchors aids and improves EVAR treatment in hostile neck anatomies by an increased rate of sac regression when compared to EVAR treatment alone in up to 5 year analysis. Moreover, a trend to reduced number of type Ia endoleaks is also achieved, although not significant in the present study. This data, adds to current and growing evidence on the usefulness of EndoAnchors for AAA endovascular treatment.
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- 2022
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76. Multicenter Mid-Term Outcomes of the Chimney Technique in the Elective Treatment of Degenerative Pararenal Aortic Aneurysms
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Georgios A. Pitoulias, Stefano Fazzini, Konstantinos P. Donas, Giovanni Torsello, Salvatore T. Scali, Frank J. Veith, Stefan Puchner, Mario D'Oria, Pitoulias, Ga, Fazzini, S, Donas, Kp, Scali, St, D'Oria, M, Torsello, G, Veith, F, and Puchner, Sb
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medicine.medical_specialty ,pararenal ,medicine.medical_treatment ,Technical success ,aneurysm ,aortic ,chimney ,degenerative ,elective ,Prosthesis Design ,Asymptomatic ,Blood Vessel Prosthesis Implantation ,Aneurysm ,Risk Factors ,Occlusion ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Dialysis ,Retrospective Studies ,business.industry ,Endovascular Procedures ,medicine.disease ,Abdominal aortic aneurysm ,Blood Vessel Prosthesis ,Surgery ,Stenosis ,Treatment Outcome ,Stents ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Splanchnic ,Aortic Aneurysm, Abdominal - Abstract
Purpose Chimney endovascular abdominal aortic aneurysm repair (CHEVAR) has predominantly been described as an alternative technique for the management of urgent presentations of degenerative pararenal aortic aneurysms (dPAAs). However, the role of CHEVAR in the treatment of asymptomatic patients remains unknown. The aim of current multinational study was to evaluate the outcomes of elective CHEVAR of dPAAs. Material and Methods Retrospective analysis of 267 consecutive dPAA patients treated with elective CHEVAR at 13 European and US centers from 2008 to 2014. Primary endpoints were 30 days and out of hospital CHEVAR-related mortality. Secondary endpoints included persistent type Ia endoleak or endotension, angiographically confirmed occlusion and/or high-grade chimney graft (CG) or involved splanchnic vessel stenosis identified at index procedure and/or during follow-up, as well as CHEVAR-related re-intervention. Results Mean follow-up time was 25.5±13.3 months. The 442 visceral vessels were involved and mean number of CGs per patient was 1.63±0.7. 436 targeted vessels were successfully cannulated. The aortic graft intentionally covered 6 renal arteries and immediate technical success was 98.6%. The 30 days mortality was 1.9% (n=5), while the in-hospital complication rate was 10.1% (n=27) including 3 strokes, 1 permanent dialysis, and 1 intestinal ischemia. No 30 day type Ia endoleaks were detected and 3.2% of CGs (n=14, including the intentionally covered) had evidence of occlusion and/or stenosis. The overall CHEVAR-related mortality was 2.2% (n=6). Freedom from primary and secondary type Ia endoleak/endotension rates at 3 years was 93.0% and 98.0%, respectively. Primary and secondary CG patency was 87.0% and 89.0%. Primary and secondary endovascular freedom from any endpoint at 3 years was 81.0% and 94.0% respectively. Conclusion Elective use of CHEVAR in the management of dPAAs seems to be durable. These results are comparable to published outcomes with other total endovascular strategies, which justifies an expanded role for CHEVAR in the treatment of asymptomatic patients presenting with dPAAs.
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- 2022
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77. The Effect of EndoAnchors on Aneurysm Sac Regression for Patients Treated With Infrarenal Endovascular Repair With Hostile Neck Anatomies: A Propensity Scored Analysis
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Reyes Valdivia, Andrés, primary, Oikonomou, Kyriakos, additional, Milner, Ross, additional, Kasprzak, Piotr, additional, Reijnen, Michel M. P. J., additional, Pitoulias, Georgios, additional, Torsello, Giovanni B., additional, Pfister, Karin, additional, de Vries, Jean-Paul P. M., additional, and Chaudhuri, Arindam, additional
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- 2022
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78. Cardiovascular complications after COVID-19 in chronic kidney disease, dialysis and kidney transplant patients
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Loutradis, Charalampos, primary, Pitoulias, Apostolos G., additional, Pagkopoulou, Eleni, additional, and Pitoulias, Georgios A., additional
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- 2021
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79. Ultrasonographic hemodynamical and epidemiological factors in advancement of clinical manifestations in primary varicose veins
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Nikolaos Roussas, Georgios A. Pitoulias, Apostolos G. Pitoulias, Ioannis Kakisis, Loukia A Politi, Matthaios G Pitoulias, Dimitrios Chatzelas, Athanasios D. Giannoukas, and Thomas E. Kalogirou
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medicine.medical_specialty ,Epidemiological Factors ,business.industry ,Reflux ,Disease ,Femoral Vein ,Logistic regression ,Pathophysiology ,Varicose Veins ,Lower Extremity ,Venous Insufficiency ,Internal medicine ,Varicose veins ,medicine ,Cardiology ,Humans ,Saphenous Vein ,Stage (cooking) ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Lower limbs venous ultrasonography - Abstract
BACKGROUND Primary varicose veins (PVV) represent the most prominent clinical manifestation of chronic venous disease (CVD) and has a complex pathophysiological background. The aim of our study was to investigate the impact of sonographic hemodynamical and contemporary epidemiological factors on the clinical severity of PVV. METHODS We analyzed the sonographic hemodynamical and clinical parameters from 159 consecutive CVD patients and 233 lower limbs with PVV of clinical stages C2, C3 and C4. Univariate and logistic regression analysis was performed between patients of C2 (N.=70 - 30.0%) and C3 - 4 stages and between subgroups C3 (N.=101 - 43.3%) and C4 (N.=62 - 26.6%). RESULTS Reflux of common femoral vein and saphenofemoral junction was detected in 43.3% and 65.7%. High venous reflux rates were found at the great saphenous above and below knee (90.1% - 53.2%) and in Cockett perforators (80.5%). Logistic regression revealed that factors associated with the symptomatic C3; 4 stages were the duration of disease >10 years (P=0.015, insufficiency in two or more perforators (P
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- 2021
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80. Mid-term outcomes of the use of endoanchors during thoracic endovascular aortic repair in multicentre analysis.
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Reyes Valdivia, Andrés, Milner, Ross, Heijmen, Robin, Riambau, Vicente, Rousseau, Hervé, Tinelli, Giovanni, Kotelis, Drosos, Zanabili Al-Sibbai, Ahmad A, Pitoulias, Georgios, Zúñiga, Claudio Gandarias, de Beaufort, Hector W L, Panagiotis, Doukas, and Chaudhuri, Arindam
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Objective: To describe mid-term outcomes of the use of EndoAnchors as an adjunct for arch and thoracic endovascular aortic repair (TEVAR). Methods: A retrospective multicentre series from nine centres using the Heli-FX EndoAnchor System (Medtronic Inc, Minneapolis, USA) at TEVAR over May 2014–May 2019 is presented. The study is registered at ClinicalTrials.gov with number NCT04100499. The primary outcome was freedom from Type I endoleak at EndoAnchors deployments; secondary outcomes included evaluation of aortic wall penetration (AWP) at first computed tomography scan, EndoAnchor-related issues and mortality. Results: 54 high-risk patients (35 males/19 females, age 73 ± 11 years) with arch, thoracic and thoracoabdominal aneurysmal disease (3 chronic post-dissection and one patch pseudoaneurysm), with a mean neck length 19.7 ± 6.6 mm that were treated with multiple hybrid and endovascular techniques were included. A total of 329 EndoAnchors were used with a mean of 6.1 ± 2.5 per patient. Overall adequate AWP was 86%, whereas arch (Ishimaru's zones 0–2) deployments achieved 80.6% when compared to 87.3% in descending thoracic aorta (dTA); although there was no statistical significance. Freedom from type I endoleaks was 88% at 2 year follow-up, due to 4 type IA endoleaks, two of them successfully treated, one with conservative treatment due to complexity of repair and remaining patient died 1 year later due to endograft infection. There were reported five EndoAnchor-related issues; four losses and one renal stent-graft was crushed due to catheter deflection solved with balloon reinflation. None of the losses had clinical significance. Overall mortality is described for 7 (9.5%) patients, one of them aneurysm-related. Conclusions: The adjunctive use of EndoAnchors in TEVAR and complex TEVAR procedures achieved acceptable outcomes at midterm in a high-risk series with hostile seal zones. Still, they should be still judiciously used as there is lack of data to suggest a more liberal use; therefore, the landing zone should not be compromised in favour of their use. [ABSTRACT FROM AUTHOR]
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- 2023
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81. Results of Iliac Branch Devices in Octogenarians Within the pELVIS Registry
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Gergana T Taneva, Georgios A. Pitoulias, Ciro Ferrer, Arnaldo Ippoliti, Matteo Barbante, Fabrizio Masciello, Konstantinos P. Donas, Stéphan Haulon, Dirk Scheinert, Nikolaos Tsilimparis, Theodosios Bisdas, Gianbattista Parlani, Daniela Branzan, Aaron Fargion, Mirjam Inchingolo, Giovanni Pratesi, Giovanni Torsello, Gioele Simonte, Fabio Verzini, Walter Dorigo, Martin Austermann, Tilo Kölbel, Piergiorgio Cao, Carlo Pratesi, and Andrej Schmidt
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Male ,internal iliac artery ,octogenarians ,medicine.medical_treatment ,migration ,Endovascular aneurysm repair ,endovascular aneurysm repair ,Risk Factors ,80 and over ,Registries ,Iliac Aneurysm ,Aged, 80 and over ,iliac artery aneurysm ,Endovascular Procedures ,iliac bifurcation ,Internal iliac artery ,age ,elderly ,endoleak ,iliac branch device ,reintervention ,Aged ,Aortic Aneurysm, Abdominal ,Blood Vessel Prosthesis ,Female ,Humans ,Prosthesis Design ,Retrospective Studies ,Treatment Outcome ,Vascular Patency ,Blood Vessel Prosthesis Implantation ,Pelvis ,Aortic Aneurysm ,Cardiology and Cardiovascular Medicine ,medicine.medical_specialty ,Blood vessel prosthesis ,medicine.artery ,medicine ,Abdominal ,Radiology, Nuclear Medicine and imaging ,business.industry ,Stent ,External iliac artery ,Perioperative ,Confidence interval ,Surgery ,business - Abstract
Purpose: To evaluate if the elderly could benefit from the implantation of iliac branch devices (IBDs) to preserve the patency of the internal iliac artery (IIA) in aneurysms involving the iliac bifurcation. Materials and Methods: From January 2005 to April 2017, 804 patients enrolled in the pELVIS registry underwent endovascular aneurysm repair with 910 IBDs due to aneurysmal involvement of the iliac bifurcation. Among the 804 patients, 157 (19.5%) were octogenarians (mean age 82.9±2.5 years; 157 men) with 171 target IIAs for preservation. Outcomes at 30 days included technical success, death, conversion to open surgery, and major complications. Outcomes evaluated in follow-up were patency of the IBD and target vessels, type I and type III endoleaks, aneurysm-related reinterventions, aneurysm-related death, and overall patient survival. Kaplan-Meier analyses were employed to evaluate the late outcome measures; the estimates are presented with the 95% confidence interval (CI). Results: Technical success was 99.4% with no intraoperative conversions or deaths (1 bridging stent could not be implanted, and the IIA was sacrificed). Perioperative mortality was 1.9%. The overall perioperative aneurysm-related complication rate was 8.9% (14/157), with an early reintervention rate of 5.1% (8/157). Median postoperative radiological and clinical follow-up were 21.8 months (range 1–127) and 29.3 months (range 1–127), respectively. Estimated rates of freedom from occlusion of the IBD, the IIA, and the external iliac artery at 60 months were 97.7% (95% CI 96.1% to 99.3%), 97.3% (95% CI 95.7% to 98.9%), and 98.6% (95% CI 97% to 99.9%), respectively. Estimated rates of freedom from type I and type III endoleaks and device migration at 60 months were 90.9% (95% CI 87% to 94.3%), 98.7% (95% CI 97.5% to 99.8%), and 98% (95% CI 96.4% to 99.6%), respectively. Freedom from all cause reintervention at 60 months was 87.4% (95% CI 82.6% to 92.2%). The estimated overall survival rate at 60 months was 59% (95% CI 52.4% to 65.6%). Conclusion: IBD implantation in octogenarians provided acceptable perioperative mortality and morbidity rates, with satisfying long-term freedom from IBD-related complications and should be considered a feasible repair option for selected elderly patients affected by aneurysms involving the iliac bifurcation.
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- 2020
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82. Mid-term outcomes of the use of endoanchors during thoracic endovascular aortic repair in multicentre analysis
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Andrés Reyes Valdivia, Ross Milner, Robin Heijmen, Vicente Riambau, Hervé Rousseau, Giovanni Tinelli, Drosos Kotelis, Ahmad A Zanabili Al-Sibbai, Georgios Pitoulias, Claudio Gandarias Zúñiga, Hector W L de Beaufort, Doukas Panagiotis, and Arindam Chaudhuri
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thoracic endovascular aortic repair ,Settore MED/11 - MALATTIE DELL'APPARATO CARDIOVASCOLARE ,Radiology, Nuclear Medicine and imaging ,Surgery ,type I endoleaks ,General Medicine ,Cardiology and Cardiovascular Medicine ,Endoanchors ,Settore MED/22 - CHIRURGIA VASCOLARE - Abstract
Objective To describe mid-term outcomes of the use of EndoAnchors as an adjunct for arch and thoracic endovascular aortic repair (TEVAR). Methods A retrospective multicentre series from nine centres using the Heli-FX EndoAnchor System (Medtronic Inc, Minneapolis, USA) at TEVAR over May 2014–May 2019 is presented. The study is registered at ClinicalTrials.gov with number NCT04100499. The primary outcome was freedom from Type I endoleak at EndoAnchors deployments; secondary outcomes included evaluation of aortic wall penetration (AWP) at first computed tomography scan, EndoAnchor-related issues and mortality. Results 54 high-risk patients (35 males/19 females, age 73 ± 11 years) with arch, thoracic and thoracoabdominal aneurysmal disease (3 chronic post-dissection and one patch pseudoaneurysm), with a mean neck length 19.7 ± 6.6 mm that were treated with multiple hybrid and endovascular techniques were included. A total of 329 EndoAnchors were used with a mean of 6.1 ± 2.5 per patient. Overall adequate AWP was 86%, whereas arch (Ishimaru’s zones 0–2) deployments achieved 80.6% when compared to 87.3% in descending thoracic aorta (dTA); although there was no statistical significance. Freedom from type I endoleaks was 88% at 2 year follow-up, due to 4 type IA endoleaks, two of them successfully treated, one with conservative treatment due to complexity of repair and remaining patient died 1 year later due to endograft infection. There were reported five EndoAnchor-related issues; four losses and one renal stent-graft was crushed due to catheter deflection solved with balloon reinflation. None of the losses had clinical significance. Overall mortality is described for 7 (9.5%) patients, one of them aneurysm-related. Conclusions The adjunctive use of EndoAnchors in TEVAR and complex TEVAR procedures achieved acceptable outcomes at midterm in a high-risk series with hostile seal zones. Still, they should be still judiciously used as there is lack of data to suggest a more liberal use; therefore, the landing zone should not be compromised in favour of their use.
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- 2022
83. Assessment of Sirolimus- vs. paCLitaxEl-coated balloon angioPlasty In atherosclerotic femoropopliteal lesiOnS (ASCLEPIOS Study): preliminary results
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Gergana T. TANEVA, Georgios A. PITOULIAS, Nizar ABU BAKR, Majid KAZEMTASH, Jaime MUÑOZ CASTELLANOS, and Konstantinos P. DONAS
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Male ,Sirolimus ,Time Factors ,Paclitaxel ,Cardiovascular Agents ,General Medicine ,Limb Salvage ,Amputation, Surgical ,Plaque, Atherosclerotic ,Progression-Free Survival ,Femoral Artery ,Peripheral Arterial Disease ,Coated Materials, Biocompatible ,Humans ,Surgery ,Female ,Popliteal Artery ,Cardiology and Cardiovascular Medicine ,Angioplasty, Balloon ,Vascular Patency ,Aged - Abstract
There appears to be an association between paclitaxel-coated devices and increased 5-year all-cause mortality.We are conducting a prospective, randomized, controlled, single-center, noninferiority study. All consecutive patients with femoropopliteal arterial disease who fulfilled the inclusion/exclusion criteria are sequentially and consecutively assigned to either paclitaxel (Ranger, Boston Scientific) or sirolimus (MagicTouch, Concept Medical) coated balloon angioplasty treatment. The primary outcome are procedural success and primary vessel patency at index procedure. The secondary outcomes are 30-day and 12-month freedom from MAEs (amputation, death, TLR/TVR, MI, distal embolization that requires a separate intervention or hospitalization), procedural success (≤30% residual diameter stenosis or occlusion after the procedure), Rutherford category improvement (reduction ≤1 category) and ABI improvement (increase ≥0.10 from baseline).A total of six patients have been enrolled in the present study up to now. The mean age was 72.6 years old and five were male. All patients had angiographic evidence of isolated occlusion in the transition segment of the distal femoral superficial artery in the popliteal artery. The mean length was 109 mm. Three patients were treated by sirolimus-coated (group A) and three by paclitaxel coated balloon angioplasty (group B). The primary patency and procedural success was in two of three and three of three patients, for group A and B, respectively.Preliminary results show safety and feasibility of the Sirolimus-coated balloon angioplasty. Further investigation and increase of sample size will allow for more sustained conclusions regarding patency and procedural success of this type of balloons for the endovascular treatment of peripheral arterial disease.
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- 2022
84. Femoral artery thrombosis in an 11-year old boy due to a blunt trauma
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Ioannis, Patoulias, Ioannis, Panopoulos, Georgios, Pitoulias, Thomas, Feidantsis, and Dimitrios, Patoulias
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Femoral Artery ,Male ,Leg ,Humans ,Thrombosis ,Femoral Vein ,Child ,Wounds, Nonpenetrating - Abstract
An 11-year old boy presented with a blunt trauma in the right inguinal area after a bicycle accident. Initial clinical picture was indicative of decreased arterial blood supply to the right lower extremity and the diagnostic confirmation was made with a colour flow Doppler ultrasonography. During operative investigation, a thrombosis of the common femoral artery, 3.5 cm in length, was found. The thrombotic part of the femoral artery was removed and replaced with a venous graft taken from the major saphenous vein, before the saphenofemoral junction. Postoperative course was uneventful. Traumatic thrombosis of the common femoral artery as a result of a blunt trauma is very rare, as only 4 relevant cases have been described previously.
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- 2022
85. Technical performance and reproducibility following rotational atherectomy of femoropopliteal artery occlusive lesions: analysis of the multicenter MORPHEAS Registry
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Konstantinos P, Donas, Gergana T, Taneva, Georgios A, Pitoulias, Amer, Jomha, Martin, Schröder, Anastasios, Psyllas, Salvatore, Scali, Nizar, Abu Bakr, and Leonard, Kaadtmann
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Atherectomy ,Time Factors ,General Medicine ,Constriction, Pathologic ,Risk Assessment ,Femoral Artery ,Peripheral Arterial Disease ,Treatment Outcome ,Risk Factors ,Humans ,Surgery ,Popliteal Artery ,Registries ,Cardiology and Cardiovascular Medicine ,Angioplasty, Balloon ,Vascular Patency - Abstract
The purpose of this study was to define patient and anatomical factors associated with technical results specific to rotational atherectomy. Controversy exists surrounding appropriate utilization of atherectomy to treat femoral-popliteal atherosclerosis. Importantly, the existence of different atherectomy devices and lack of technical reports highlighting variables that impact outcomes obscures the ability to assess perioperative performance.The nonindustry sponsored, Multicentric National Registry on the use of rotational atherectomy in femoral-popliteal occlusive atherosclerotic disease (MORPHEAS) database was queried. The MORPHEAS investigators included experienced providers at four centers who previously had not utilized rotational atherectomy. The primary endpoint was flow-limiting dissection and/or50% recoil resulting in stent-placement while a secondary endpoint included peripheral thromboembolism incidence.One hundred thirteen patients were enrolled. Only femoropopliteal occlusions were included in the analysis and anatomic distribution and calcification severity were depicted separately. The most common adjunctive therapy was drug-coated balloon angioplasty (84%; N.=96). Flow-limiting dissection was identified in 16% (N.=18) and thromboembolism occurred in 4% (N.=4). Diabetes increased risk of thromboembolism (P=0.03) while lesion length ≥8.0 cm (P=0.07) and SFA-popliteal adductor canal location (P=0.01) were associated with flow-limiting dissection. In multivariable analysis, SFA-popliteal adductor canal occlusion had a 4.7-fold risk of perioperative complications (OR=4.7, 95%CI: 1.1-21.0; P=0.04).Rotational atherectomy was characterized by reproducible performance among four centers; however, diabetic patients, as well as those with long-segment, heavily calcified SFA-popliteal adductor canal occlusion present greatest risk of complications.
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- 2022
86. Endovascular aortic repair with EndoAnchors demonstrate good mid-term outcomes in physician-initiated multicenter analysis-The PERU registry
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Michel M.P.J. Reijnen, Giovanni Tinelli, Andrés Reyes Valdivia, Claudio Gandarias, Richte C. L. Schuurmann, Trissa Babrowski, Jean-Paul P.M. de Vries, Giovanni Pratesi, Yamume Tshomba, Arindam Chaudhuri, Ayman Badawy, Matteo Barbante, Georgios A. Pitoulias, Ross Milner, Robotics and image-guided minimally-invasive surgery (ROBOTICS), Multi-Modality Medical Imaging, and TechMed Centre
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Male ,type IaEL ,medicine.medical_specialty ,Endoleak ,030204 cardiovascular system & hematology ,Aortic repair ,EndoAnchors ,ESAR ,EVAR ,hostile neck anatomy ,03 medical and health sciences ,Blood Vessel Prosthesis Implantation ,0302 clinical medicine ,Physicians ,Peru ,Medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,030212 general & internal medicine ,Registries ,Aged ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Endovascular Procedures ,General Medicine ,Settore MED/22 - CHIRURGIA VASCOLARE ,n/a OA procedure ,Surgery ,Term (time) ,Blood Vessel Prosthesis ,Treatment Outcome ,Female ,Cardiology and Cardiovascular Medicine ,business ,Aortic Aneurysm, Abdominal - Abstract
Objectives We aim to describe real-world outcomes from multicenter data about the efficacy of adjunct Heli-FX EndoAnchor usage in preventing or repairing failures during infrarenal endovascular aneurysm repair (EVAR), so-called EndoSutured-aneurysm-repair (ESAR). Methods The current study has been assigned an identifier (NCT04100499) at the US National Library of Medicine ( https://ClinicalTrials.gov ). It is an observational retrospective study of prospectively collected data from seven vascular surgery departments between June 2010 and December 2019. Patients included in the ANCHOR registry were excluded from this analysis. The decision for the use of EndoAnchors was made by the treating surgeon or multidisciplinary aortic committee according to each center’s practice. Follow-up imaging was scheduled according to each center’s protocol, which necessarily included either abdominal ultrasound or radiography or computed tomographic scan imaging. The main outcomes analyzed were technical success, freedom from type Ia endoleaks (IaEL), all-cause and aneurysm-related mortality, and sac variation and trends evaluated for those with at least six months imaging follow-up. Results Two hundred and seventy-five patients underwent ESAR in participating centers during the study period. After exclusions, 221 patients (184 males, 37 females, mean age 75 ± 8.3 years) were finally included for analysis. Median follow-up for the cohort was 27 (interquartile range 12–48) months. A median 6 (interquartile range 3) EndoAnchors were deployed at ESAR, 175 (79%) procedures were primary and 46 (21%) revision cases, 40 associated with type IaEL. Technical success at operation (initial), 30-day, and overall success were 89, 95.5, and 96.8%, respectively; the 30-day success was higher due to those with subsequent spontaneous proximal endoleak seal. At two years, freedom from type IaEL was 94% for the whole series; 96% and 86% for the primary and revision groups, respectively; whereas freedom from all-cause mortality, aneurysm-related mortality, and reintervention was 89%, 98%, and 87%, respectively. Sac evolution pre-ESAR was 66 ± 15.1 vs. post ESAR 61 ± 17.5 (p Conclusions This real-world registry demonstrates that adjunct EndoAnchor usage at EVAR achieves high rates of freedom from type IaEL at mid-term including in a high number of patients with hostile neck anatomy, with positive trends in sac-size evolution. Further data with longer follow-up may help to establish EndoAnchor usage as a routine adjunct to EVAR, especially in hostile necks.
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- 2022
87. Periprocedural Outcomes of Rotational Atherectomy-Assisted Balloon Angioplasty in Isolated Atherosclerotic Popliteal Artery Lesions: The ISO-POP Trial
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Konstantinos P. Donas, Anastasios Psyllas, Apostolos G. Pitoulias, Majid Kazemtash, Firouza Dahi, Nizar Abu Bakr, and Grigorios Korosoglou
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isolated popliteal artery ,rotational atherectomy ,endovascular treatment ,claudication ,critical limb ischemia ,General Medicine - Abstract
Background: Treatment of calcified popliteal artery lesions represents an ongoing challenge for vascular specialists. Biomechanical forces of external compression, torsion and elongation that occur with locomotion in the popliteal segment can lead to stent fractures and occlusions. The aim of our study was to assess the procedural success rate of atherectomy in combination with balloon angioplasty for isolated calcified popliteal artery lesions. Methods: Between January 2020 and December 2022, 62 patients with isolated atherosclerotic lesions of the popliteal artery underwent endovascular treatment by use of rotational atherectomy (Phoenix, Philips USA, (subgroup A) or Jetstream, Boston USA, (subgroup B), atherectomy systems) and additional balloon angioplasty in two vascular centers. The primary outcome measures were: 1. periprocedural clinical and technical success (
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- 2023
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88. Cardiovascular complications after COVID-19 in chronic kidney disease, dialysis and kidney transplant patients
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Charalampos Loutradis, Georgios A. Pitoulias, Apostolos G. Pitoulias, and Eleni Pagkopoulou
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Nephrology ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Population ,Renal function ,Nephrology - Review ,Renal Dialysis ,Risk Factors ,Internal medicine ,Cardiovascular Disease ,Chronic Kidney Disease ,medicine ,Renal Transplantation ,Humans ,Renal Insufficiency, Chronic ,education ,Dialysis ,education.field_of_study ,business.industry ,Acute kidney injury ,COVID-19 ,Acute Kidney Injury ,medicine.disease ,Kidney Transplantation ,Heart failure ,Hemodialysis ,business ,Kidney disease - Abstract
The coronavirus disease 2019 (COVID-19) is associated with increased mortality in patients with chronic kidney disease (CKD), dialysis patients and kidney transplant recipients (KTR). Cardiovascular complications, such as sudden arrhythmias, thromboembolic events, coronary events, cardiomyopathies and heart failure, may present in about 10-20% of patients with COVID-19. Patients with CKD, dialysis patients and KTR are all at increased cardiovascular risk and present with more cardiovascular complications after COVID-19 compared to the general population. During the pandemic, health care giving has rapidly changed by reducing elective outpatient reviews, which may refrain these high-risk patients from the appropriate management of their medical conditions, further increasing cardiovascular risk. Importantly, acute kidney injury (AKI) is another common complication of severe COVID-19 and associates with increased mortality. A large proportion of the AKI patients need renal replacement treatment, while 30% of them may not present renal function recovery and remain dialysis-dependent after discharge, thereby having potentially increased future cardiovascular risk. This review summarizes current knowledge regarding the cardiovascular events and mortality in patients with CKD or undergoing hemodialysis and in KTR.
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- 2021
89. Ultrasonographic hemodynamical and epidemiological factors in advancement of clinical manifestations in primary varicose veins
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PITOULIAS, Apostolos G., primary, CHATZELAS, Dimitrios, additional, KALOGIROU, Thomas E., additional, POLITI, Loukia A., additional, PITOULIAS, Matthaios G., additional, ROUSSAS, Nikolaos, additional, KAKISIS, Ioannis, additional, GIANNOUKAS, Athanasios D., additional, and PITOULIAS, Georgios A., additional
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- 2021
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90. Technical performance and reproducibility following rotational atherectomy of femoropopliteal artery occlusive lesions: analysis of the multicenter MORPHEAS Registry
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Donas, Konstantinos P., Taneva, Gergana T., Pitoulias, Georgios A., Jomha, Amer, Schroder, Martin, Psyllas, Anastasios, Scali, Salvatore, Abu Bakr, Nizar, Registry, Morpheas, Donas, Konstantinos P., Taneva, Gergana T., Pitoulias, Georgios A., Jomha, Amer, Schroder, Martin, Psyllas, Anastasios, Scali, Salvatore, Abu Bakr, Nizar, and Registry, Morpheas
- Abstract
BACKGROUND: The purpose of this study was to define patient and anatomical factors associated with technical results specific to rotational atherectomy. Controversy exists surrounding appropriate utilization of atherectomy to treat femoral-popliteal atherosclerosis. Importantly, the existence of different atherectomy devices and lack of technical reports highlighting variables that impact outcomes obscures the ability to assess perioperative performance. METHODS: The nonindustry sponsored, Multicentric National Registry on the use of rotational atherectomy in femoral-popliteal occlusive atherosclerotic disease (MORPHEAS) database was queried. The MORPHEAS investigators included experienced providers at four centers who previously had not utilized rotational atherectomy. The primary endpoint was flow-limiting dissection and/or >50% recoil resulting in stentplacement while a secondary endpoint included peripheral thromboembolism incidence. RESULTS: One hundred thirteen patients were enrolled. Only femoropopliteal occlusions were included in the analysis and anatomic distribution and calcification severity were depicted separately. The most common adjunctive therapy was drug-coated balloon angioplasty (84%; N.=96). Flow-limiting dissection was identified in 16% (N.=18) and thromboembolism occurred in 4% (N.=4). Diabetes increased risk of thromboembolism (P=0.03) while lesion length >8.0 cm (P=0.07) and SFA-popliteal adductor canal location (P=0.01) were associated with flow-limiting dissection. In multivariable analysis, SFA-popliteal adductor canal occlusion had a 4.7-fold risk of perioperative complications (OR=4.7, 95%CI: 1.1-21.0; P=0.04). CONCLUSIONS: Rotational atherectomy was characterized by reproducible performance among four centers; however, diabetic patients, as well as those with long-segment, heavily calcified SFA-popliteal adductor canal occlusion present greatest risk of complications. (Cite this article as: Donas KP, Taneva GT, Pitoulias GA, Jomha A, S
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- 2022
91. Documenting the Recovery of Vascular Services in European Centres Following the Initial COVID-19 Pandemic Peak: Results from a Multicentre Collaborative Study
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Ruffino, M. A., Chan, S., Coughlin, P., Awopetu, A., Stather, P., Lane, T., Theodosiou, D., Ahmed, M. A., Vasudevan, T., Ibrahim, M., Al Maadany, F., Eljareh, M., Alkhafeefi, F. S., Coscas, R., Unal, E. U., Pulli, R., Zaca, S., Angiletta, D., Kotsis, T., Moawad, M., Tozzi, M., Patelis, N., Lazaris, A. M., Chuen, J., Croo, A., Tsolaki, E., Zenunaj, G., Kamal, D., Tolba, M. M., Maresch, M., Khetarpaul, V., Mills, J., Gangwani, G., Elahwal, M., Khalil, R., Azab, M. A., Mahomed, A., Whiston, R., Contractor, U., Esposito, D., Pratesi, C., Giacomelli, E., Troncoso, M. V., Elkouri, S., Johansson, F. G., Dodos, I., Benezit, M., Vidoedo, J., Rocha-Neves, J., Pereira-Neves, A. H., Dias-Neto, M. F., Campos Jacome, A. F., Loureiro, L., Silva, I., Garza-Herrera, R., Canata, V., Bezard, C., Bowser, K., Tobar, J. F., Vera, C. G., Parra, C. S., Lopez, E., Serra, Y. G., Varela, J., Rubio, V., Victoria, G., Johnson, A., O'Banion, L. A., Makar, R., Tantawy, T. G., Storck, M., Jongkind, V., Falah, O., Mcbride, O., Isik, A., Papaioannou, A., Ocke Reis, P. E., Bracale, U. M., Atkins, E., Tinelli, Giovanni, Scott, E., Wales, L., Sivaharan, A., Priona, G., Nesbitt, C., Grainger, T., Shelmerdine, L., Chong, P., Bajwa, A., Arwynck, L., Hadjievangelou, N., Elbasty, A., Rubio, O., Ricardo, M., Ulloa, J. H., Tarazona, M., Pabon, M., Pitoulias, G., Corless, K., Ioannidis, O., Friedrich, O., Van Herzeele, I., Vijaynagar, B., Cohnert, T., Bell, R., Moore, H., Saha, P., Gifford, E., Laine, M., Barkat, A., Karkos, C., Binti Safri, L. S., Buitron, G., Del Castillo, J., Carrera, P., Salinas, N., Biagioni, R. B., Benites, S., Mafla, C. A., Pian, P. M., Albino, P., Serrano, E., Marin, A., Gonzalez, M., Foreroga, M., Russo, A., Reyes, A., Guglielmone, D., Grillo, L., Flumignan, R., Palones, F. G., Silveira, P. G., Ramely, R. B., Edeiken, S., Chetter, I., Green, L., Sudarsanam, A., Lyons, O., Lemmon, G., Neville, R., Castelli, M., Hinojosa, C. A., Carvajal, R. R., Rivera, A., Wong, P., Drudi, L., Perkins, J., Sieunarine, K., Attia, D., Atef, M., Eftychios, L., Weaver, F., Ren, L. C., Alomari, M., Jamjoom, R., Aljarrah, Q., Abbas, A., Alomran, F., Kumar, A., Altoijri, A., Elsanhoury, K. T., Alhumaid, A., Fekry, T., Sekhar, R., Theodoridis, P., Panagiotis, T., Roditis, K., Tsiantoula, P., Antoniou, A., Soler, R., Hasemaki, N., Baili, E., Mpaili, E., Huasen, B., Wallace, T., Duncan, A., Metcalfe, M., Mannoia, K., Bechara, C. F., Tsilimparis, N., Aranson, N., Riding, D., Palena, M., Mcdonnell, C., Mouawad, N. J., Banegas, S., Rossi, P., Oshodi, T., Diaz, R., Afifi, R., Dindyal, S., Thapar, A., Kordzadeh, A., Pullas, G., Lin, S., Davies, C., Darvall, K., Kodama, A., Gooneratne, T., Gunawansa, N., Munoz, A., Jie, N. J., Bradley, N., Al-Jundi, W., Meyer, F., Lee, C., Malina, M., Renton, S., Lui, D., Batchelder, A., Oszkinis, G., Freyrie, A., Giordano, J., Saratzis, N., Tigkiropoulos, K., Kyriakos, S., Popov, G., Cheema, M. U., Lapolla, P., Ling Patricia, Y. C., Ennab, R., Ullery, B. W., Pasenidou, K., Tam, J., Sidel, G., Jayaprakash, V. V., Bennett, L., Hardy, S., Davies, E., Baker, S., Wijesinghe, L., Tam, A., Mccune, K., Chana, M., Lowe, C., Goh, A., Powezka, K., Kyrou, I., Altaf, N., Harkin, D., Travers, H., Cragg, J., Sharif, A., Akhtar, T., Chavez, J. A., Ordonez, C., Mazzurco, M., Choke, E., Asghar, I., Summerour, V., Dunlop, P., Morley, R., Hardy, T., Bevis, P., Cuff, R., Stavroulakis, K., Beropoulis, E., Argyriou, A., Loftus, I., Azhar, B., Sheth, S., Usai, M. V., Choudhry, A., Nicole, K., Boyle, E., Joyce, D., Abdelaty Hassan, M. H., Saltiel, A., Frahm-Jensen, G., Antoniou, G., Elhadi, M., Kimyaghalam, A., Malgor, R., Telve, D., Isaak, A., Schmidli, J., Mckevitt, K., Siddiqui, T., Asciutto, G., Floros, N., Papadopoulos, G., Kafetzakis, A., Koutsias, S. G., Nana, P., Giannoukas, A., Kakkos, S., Moulakakis, K. G., Shafique, N., Jawien, A., Popplewell, M., Imray, C., Abayasekara, K., Rowlands, T., Kuhan, G., Rajagopalan, S., Jaipersad, A., Sadia, U., Kobe, I., Mittapalli, D., Enemosah, I., Behrendt, C. -A., Beck, A., Almudhafer, M., Ancetti, S., Jacobs, D., Jayakumar, P., Malekpour, F., Shalhub, S., Keldiyorov, B., Simon, M., Khashram, M., Rich, N., Shepherd, A., Meecham, L., Doherty, D., Benson, R. A., Tinelli G. (ORCID:0000-0002-2212-3226), Ruffino, M. A., Chan, S., Coughlin, P., Awopetu, A., Stather, P., Lane, T., Theodosiou, D., Ahmed, M. A., Vasudevan, T., Ibrahim, M., Al Maadany, F., Eljareh, M., Alkhafeefi, F. S., Coscas, R., Unal, E. U., Pulli, R., Zaca, S., Angiletta, D., Kotsis, T., Moawad, M., Tozzi, M., Patelis, N., Lazaris, A. M., Chuen, J., Croo, A., Tsolaki, E., Zenunaj, G., Kamal, D., Tolba, M. M., Maresch, M., Khetarpaul, V., Mills, J., Gangwani, G., Elahwal, M., Khalil, R., Azab, M. A., Mahomed, A., Whiston, R., Contractor, U., Esposito, D., Pratesi, C., Giacomelli, E., Troncoso, M. V., Elkouri, S., Johansson, F. G., Dodos, I., Benezit, M., Vidoedo, J., Rocha-Neves, J., Pereira-Neves, A. H., Dias-Neto, M. F., Campos Jacome, A. F., Loureiro, L., Silva, I., Garza-Herrera, R., Canata, V., Bezard, C., Bowser, K., Tobar, J. F., Vera, C. G., Parra, C. S., Lopez, E., Serra, Y. G., Varela, J., Rubio, V., Victoria, G., Johnson, A., O'Banion, L. A., Makar, R., Tantawy, T. G., Storck, M., Jongkind, V., Falah, O., Mcbride, O., Isik, A., Papaioannou, A., Ocke Reis, P. E., Bracale, U. M., Atkins, E., Tinelli, Giovanni, Scott, E., Wales, L., Sivaharan, A., Priona, G., Nesbitt, C., Grainger, T., Shelmerdine, L., Chong, P., Bajwa, A., Arwynck, L., Hadjievangelou, N., Elbasty, A., Rubio, O., Ricardo, M., Ulloa, J. H., Tarazona, M., Pabon, M., Pitoulias, G., Corless, K., Ioannidis, O., Friedrich, O., Van Herzeele, I., Vijaynagar, B., Cohnert, T., Bell, R., Moore, H., Saha, P., Gifford, E., Laine, M., Barkat, A., Karkos, C., Binti Safri, L. S., Buitron, G., Del Castillo, J., Carrera, P., Salinas, N., Biagioni, R. B., Benites, S., Mafla, C. A., Pian, P. M., Albino, P., Serrano, E., Marin, A., Gonzalez, M., Foreroga, M., Russo, A., Reyes, A., Guglielmone, D., Grillo, L., Flumignan, R., Palones, F. G., Silveira, P. G., Ramely, R. B., Edeiken, S., Chetter, I., Green, L., Sudarsanam, A., Lyons, O., Lemmon, G., Neville, R., Castelli, M., Hinojosa, C. A., Carvajal, R. R., Rivera, A., Wong, P., Drudi, L., Perkins, J., Sieunarine, K., Attia, D., Atef, M., Eftychios, L., Weaver, F., Ren, L. C., Alomari, M., Jamjoom, R., Aljarrah, Q., Abbas, A., Alomran, F., Kumar, A., Altoijri, A., Elsanhoury, K. T., Alhumaid, A., Fekry, T., Sekhar, R., Theodoridis, P., Panagiotis, T., Roditis, K., Tsiantoula, P., Antoniou, A., Soler, R., Hasemaki, N., Baili, E., Mpaili, E., Huasen, B., Wallace, T., Duncan, A., Metcalfe, M., Mannoia, K., Bechara, C. F., Tsilimparis, N., Aranson, N., Riding, D., Palena, M., Mcdonnell, C., Mouawad, N. J., Banegas, S., Rossi, P., Oshodi, T., Diaz, R., Afifi, R., Dindyal, S., Thapar, A., Kordzadeh, A., Pullas, G., Lin, S., Davies, C., Darvall, K., Kodama, A., Gooneratne, T., Gunawansa, N., Munoz, A., Jie, N. J., Bradley, N., Al-Jundi, W., Meyer, F., Lee, C., Malina, M., Renton, S., Lui, D., Batchelder, A., Oszkinis, G., Freyrie, A., Giordano, J., Saratzis, N., Tigkiropoulos, K., Kyriakos, S., Popov, G., Cheema, M. U., Lapolla, P., Ling Patricia, Y. C., Ennab, R., Ullery, B. W., Pasenidou, K., Tam, J., Sidel, G., Jayaprakash, V. V., Bennett, L., Hardy, S., Davies, E., Baker, S., Wijesinghe, L., Tam, A., Mccune, K., Chana, M., Lowe, C., Goh, A., Powezka, K., Kyrou, I., Altaf, N., Harkin, D., Travers, H., Cragg, J., Sharif, A., Akhtar, T., Chavez, J. A., Ordonez, C., Mazzurco, M., Choke, E., Asghar, I., Summerour, V., Dunlop, P., Morley, R., Hardy, T., Bevis, P., Cuff, R., Stavroulakis, K., Beropoulis, E., Argyriou, A., Loftus, I., Azhar, B., Sheth, S., Usai, M. V., Choudhry, A., Nicole, K., Boyle, E., Joyce, D., Abdelaty Hassan, M. H., Saltiel, A., Frahm-Jensen, G., Antoniou, G., Elhadi, M., Kimyaghalam, A., Malgor, R., Telve, D., Isaak, A., Schmidli, J., Mckevitt, K., Siddiqui, T., Asciutto, G., Floros, N., Papadopoulos, G., Kafetzakis, A., Koutsias, S. G., Nana, P., Giannoukas, A., Kakkos, S., Moulakakis, K. G., Shafique, N., Jawien, A., Popplewell, M., Imray, C., Abayasekara, K., Rowlands, T., Kuhan, G., Rajagopalan, S., Jaipersad, A., Sadia, U., Kobe, I., Mittapalli, D., Enemosah, I., Behrendt, C. -A., Beck, A., Almudhafer, M., Ancetti, S., Jacobs, D., Jayakumar, P., Malekpour, F., Shalhub, S., Keldiyorov, B., Simon, M., Khashram, M., Rich, N., Shepherd, A., Meecham, L., Doherty, D., Benson, R. A., and Tinelli G. (ORCID:0000-0002-2212-3226)
- Abstract
Objective: To document the recovery of vascular services in Europe following the first COVID-19 pandemic peak. Methods: An online structured vascular service survey with repeated data entry between 23 March and 9 August 2020 was carried out. Unit level data were collected using repeated questionnaires addressing modifications to vascular services during the first peak (March – May 2020, “period 1”), and then again between May and June (“period 2”) and June and July 2020 (“period 3”). The duration of each period was similar. From 2 June, as reductions in cases began to be reported, centres were first asked if they were in a region still affected by rising cases, or if they had passed the peak of the first wave. These centres were asked additional questions about adaptations made to their standard pathways to permit elective surgery to resume. Results: The impact of the pandemic continued to be felt well after countries’ first peak was thought to have passed in 2020. Aneurysm screening had not returned to normal in 21.7% of centres. Carotid surgery was still offered on a case by case basis in 33.8% of centres, and only 52.9% of centres had returned to their normal aneurysm threshold for surgery. Half of centres (49.4%) believed their management of lower limb ischaemia continued to be negatively affected by the pandemic. Reduced operating theatre capacity continued in 45.5% of centres. Twenty per cent of responding centres documented a backlog of at least 20 aortic repairs. At least one negative swab and 14 days of isolation were the most common strategies used for permitting safe elective surgery to recommence. Conclusion: Centres reported a broad return of services approaching pre-pandemic “normal” by July 2020. Many introduced protocols to manage peri-operative COVID-19 risk. Backlogs in cases were reported for all major vascular surgeries.
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- 2022
92. Mid-term outcomes of the use of endoanchors during thoracic endovascular aortic repair in multicentre analysis
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Reyes Valdivia, A., Milner, R., Heijmen, R., Riambau, V., Rousseau, H., Tinelli, Giovanni, Kotelis, D., Zanabili Al-Sibbai, A. A., Pitoulias, G., Zuniga, C. G., de Beaufort, H. W. L., Panagiotis, D., Chaudhuri, A., Tinelli G. (ORCID:0000-0002-2212-3226), Reyes Valdivia, A., Milner, R., Heijmen, R., Riambau, V., Rousseau, H., Tinelli, Giovanni, Kotelis, D., Zanabili Al-Sibbai, A. A., Pitoulias, G., Zuniga, C. G., de Beaufort, H. W. L., Panagiotis, D., Chaudhuri, A., and Tinelli G. (ORCID:0000-0002-2212-3226)
- Abstract
Objective: To describe mid-term outcomes of the use of EndoAnchors as an adjunct for arch and thoracic endovascular aortic repair (TEVAR). Methods: A retrospective multicentre series from nine centres using the Heli-FX EndoAnchor System (Medtronic Inc, Minneapolis, USA) at TEVAR over May 2014–May 2019 is presented. The study is registered at ClinicalTrials.gov with number NCT04100499. The primary outcome was freedom from Type I endoleak at EndoAnchors deployments; secondary outcomes included evaluation of aortic wall penetration (AWP) at first computed tomography scan, EndoAnchor-related issues and mortality. Results: 54 high-risk patients (35 males/19 females, age 73 ± 11 years) with arch, thoracic and thoracoabdominal aneurysmal disease (3 chronic post-dissection and one patch pseudoaneurysm), with a mean neck length 19.7 ± 6.6 mm that were treated with multiple hybrid and endovascular techniques were included. A total of 329 EndoAnchors were used with a mean of 6.1 ± 2.5 per patient. Overall adequate AWP was 86%, whereas arch (Ishimaru’s zones 0–2) deployments achieved 80.6% when compared to 87.3% in descending thoracic aorta (dTA); although there was no statistical significance. Freedom from type I endoleaks was 88% at 2 year follow-up, due to 4 type IA endoleaks, two of them successfully treated, one with conservative treatment due to complexity of repair and remaining patient died 1 year later due to endograft infection. There were reported five EndoAnchor-related issues; four losses and one renal stent-graft was crushed due to catheter deflection solved with balloon reinflation. None of the losses had clinical significance. Overall mortality is described for 7 (9.5%) patients, one of them aneurysm-related. Conclusions: The adjunctive use of EndoAnchors in TEVAR and complex TEVAR procedures achieved acceptable outcomes at midterm in a high-risk series with hostile seal zones. Still, they should be still judiciously used as th
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- 2022
93. Pyruvate kinase, a metabolic sensor powering glycolysis, drives the metabolic control of DNA replication
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Horemans, Steff, primary, Pitoulias, Matthaios, additional, Holland, Alexandria, additional, Pateau, Emilie, additional, Lechaplais, Christophe, additional, Ekaterina, Dariy, additional, Perret, Alain, additional, Soultanas, Panos, additional, and Janniere, Laurent, additional
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- 2022
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94. Mid-term outcomes of the use of endoanchors during thoracic endovascular aortic repair in multicentre analysis
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Reyes Valdivia, Andrés, primary, Milner, Ross, additional, Heijmen, Robin, additional, Riambau, Vicente, additional, Rousseau, Hervé, additional, Tinelli, Giovanni, additional, Kotelis, Drosos, additional, Zanabili Al-Sibbai, Ahmad A, additional, Pitoulias, Georgios, additional, Zúñiga, Claudio Gandarias, additional, de Beaufort, Hector W L, additional, Panagiotis, Doukas, additional, and Chaudhuri, Arindam, additional
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- 2022
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95. Assessment of Sirolimus- vs. paCLitaxEl-coated balloon angioPlasty In atherosclerotic femoropopliteal lesiOnS (ASCLEPIOS Study): preliminary results
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TANEVA, Gergana T., primary, PITOULIAS, Georgios A., additional, ABU BAKR, Nizar, additional, KAZEMTASH, Majid, additional, MUÑOZ CASTELLANOS, Jaime, additional, and DONAS, Konstantinos P., additional
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- 2022
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96. The role of imaging for identifying unstable carotid plaque
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Sofogianni, Areti, Tsakona, Anastasia, Tziomalos, Konstantinos, Koletsa, Triantafyllia, and Pitoulias, Georgios
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stroke, stenosis, unstable carotid plaques, imaging techniques - Abstract
Stroke is one of the major causes of morbidity and mortality worldwide and approximately 15 million strokes occur every year. The risk of stroke depends not only on the grade of carotid artery stenosis but also on plaque characteristics that make them unstable. The features of unstable plaques include thin fibrous cap, large lipid core, inflammation, neovascularization and intraplaque hemorrhage. The present review summarizes existing data on the role of imaging in the identification of vulnerable carotid plaque., Aristotle Biomedical Journal, Vol 4, No 1 (2022)
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- 2022
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97. Epidemiology of advanced cutaneous squamous cell carcinoma
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Dessinioti, C. Pitoulias, M. Stratigos, A. J.
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Cutaneous invasive squamous cell carcinoma (cSCC) most commonly presents as a typically indolent tumour with five-year cure rates of >90%. Advanced cSCC has been defined as locally advanced or metastatic (locoregional or distant) cSCC. The epidemiological data on advanced cSCC are rare due to underreporting or exclusion of cSCC from national cancer registries. Although the frequency of local recurrence has been reported, there is no clear evidence on the incidence or mortality of locally advanced cSCCs, e.g. locally infiltrating or locally recurrent cSCCs that are not further amenable to curative surgery or radiotherapy. This gap of knowledge on the epidemiology of locally advanced cSCC, highlights the need for standardisation in defining and reporting both locally advanced and metastatic cSCC. Even though metastatic cSCCs are a small part of cSCCs (3%-5%), their aggressive characteristics contribute to significant morbidity, higher mortality and are those likely to require systemic treatments. Locally recurrent and metastatic cSCC may occur more frequently in high-risk cSCCs (up to 35%). The site of metastasis involves in the vast majority the regional lymph nodes, with the head and neck lymph nodes or parotid most commonly affected. Metastasis occurs mostly within 2-3 years of the primary cSCC diagnosis. The knowledge of the incidence and prognosis of advanced cSCC and the risk stratification of patients, who may progress to advanced cSCC, emerge as pressing research areas with important implications for cost-efficiency planning and optimisation of patient care.
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- 2022
98. Different endovascular modalities of treatment for isolated atherosclerotic popliteal artery lesions (EMO-POP) registry
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Nicola Troisi, Athanasios Saratzis, Emmanuel Katsogridakis, Konstantinos Stavroulakis, Raffaella Berchiolli, Hany Zayed, Giovanni Torsello, Denise Özdemir-van Brunschot, Teresa Martín González, Thomas Denisselle, Grigorios Korosoglou, Giacomo Isernia, Stefano Michelagnoli, Antonio Nicola Giordano, Konstantinos P. Daonas, Apostolos G. Pitoulias, Stavros Spiliopoulos, Massimiliano Martelli, Alberto Maria Settembrini, and Mario D’Oria
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Atherosclerosis ,Femoral Artery ,Peripheral Arterial Disease ,Treatment Outcome ,Coated Materials, Biocompatible ,Humans ,Popliteal Artery ,Surgery ,Registries ,Cardiology and Cardiovascular Medicine ,Angioplasty, Balloon ,Vascular Patency ,Aged ,Retrospective Studies - Abstract
The mid-term results after treatment of isolated popliteal lesions have been limited. The aim of the present study was to report the mid-term outcomes after endovascular treatment of isolated atherosclerotic popliteal artery lesions.A multicenter (15 hospitals in five countries) retrospective cohort study was performed. Between June 2016 and June 2021, 651 consecutive patients who had been treated for isolated popliteal lesions using endovascular methods exclusively were included in the present study. Six techniques were identified, including plain balloon angioplasty (PTA; n = 286; 43.9%), drug-coated balloon angioplasty (n = 98; 15.1%), stenting with low-chronic outward force (COF) stents (n = 84; 12.9%), stenting with high-COF stents (n = 76; 11.7%), atherectomy alone (n = 17; 2.6%), and directional atherectomy with drug-coated balloons (n = 90; 13.8%). The primary outcomes measures were primary and secondary patency and freedom from clinically driven target lesion revascularization (F-CDTLR).The mean patient age was 74.5 years. Most of the patients (n = 409; 62.9%) had had chronic limb-threatening ischemia. Popliteal occlusion was found in 400 cases (61.4%). High-grade calcification was present in 36.7% of cases. Immediate technical success was 94.8%. The median follow-up was 26 months (range, 6-42 months). The actuarial rate for all patients at 26 months (per outcome measure) was as follows: primary patency, 73.9%; secondary patency, 88%; and F-CDTLR, 76.5%. When comparing PTA vs all other treatments in an adjusted regression analysis, the F-CDTLR was 75.2% for PTA vs 76.5% for all other treatment (hazard ratio, 1.06; 95% confidence interval, 0.75-1.48; P = .46, adjusted regression). The difference in secondary patency also was not statistically significant (85.7% for PTA vs 88%; P = .20). Adjusted Kaplan-Meier analysis revealed that the estimated primary patency was inferior for PTA in pairwise comparisons vs other treatments (P .001 vs atherectomy; P = .002 vs directional atherectomy with drug-coated balloons; and P = .002 vs low-COF stenting).The results from our study have shown that endovascular treatment of isolated popliteal lesions is safe and associated with acceptable patency and F-CDTLR in the mid-term.
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- 2023
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99. Using Serum Biomarkers for Identifying Unstable Carotid Plaque: Update of Current Evidence
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Sofogianni, Areti, primary, Tziomalos, Konstantinos, additional, Koletsa, Triantafyllia, additional, Pitoulias, Apostolos G., additional, Skoura, Lemonia, additional, and Pitoulias, Georgios A., additional
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- 2021
- Full Text
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100. Outcomes of total endovascular treatment of juxtarenal aortic aneurysms in octogenarians
- Author
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Silveira, Diogo, Pitoulias, Georgios, Torsello, Giovanni, and Donas, Konstantinos P.
- Published
- 2016
- Full Text
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