13 results on '"Leibovich, I"'
Search Results
2. Psychometric study of the SF-36v2 in hereditary angioedema due to C1 inhibitor deficiency (C1-INH-HAE).
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Palao-Ocharan, Paola, Prior, Nieves, Pérez-Fernández, Elia, Caminoa, Magdalena, DV-HAE-QoL Study Group, Aberer, W., Betschel, S., Bygum, A., Campos, R. A., Csuka, D., Farkas, H., Gómez-Traseira, C., Grumach, A. S., Leibovich, I., Malbran, A., Moldovan, D., Mihaly, E., Obtulowicz, K., Porebski, G., and Reshef, A.
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CRONBACH'S alpha ,ANGIONEUROTIC edema ,INTRACLASS correlation ,PSYCHOMETRICS ,TEST validity ,STATISTICAL reliability - Abstract
Background: The generic 36-item Short-Form Health Survey (SF-36v2) has been used to assess health related quality of life in adult patients with hereditary angioedema due to C1-inhibitor deficiency (C1-INH-HAE) even though it has not yet been validated for use in this specific disease.Objective: This study aims to validate the SF-36v2 for use in adult patients with C1-INH-HAE.Results: There was a very low item non-response rate (1-3.4%), with a high ceiling effect in 25/35 items and a low floor effect in 3/35 items. A moderate ceiling effect was observed in 5/8 dimensions of the SF-36v2, whereas no floor effect was noticed in any of the dimensions. Internal consistency was good to excellent with Cronbach's alpha coefficient ranging between 0.82 and 0.93 for the different dimensions. Construct validity was good: seven out of the 8 hypotheses defined on clinical criteria were confirmed, discriminant validity assessment showed significant differences among patients with different C1-INH-HAE severity, convergent validity showed a good correlation among the physical and mental component summaries of the SF-36v2 and the HAE-QoL total score (0.45 and 0.64 respectively, P < 0.001). Test-retest reliability was high with intraclass correlation coefficient varying from 0.758 to 0.962. The minimal clinically important difference was calculated by distribution methods and small differences in the domain scores and in the component summaries scores were shown to be meaningful. CONCLUSIONS: The psychometric properties of the SF-36v2 show it can be a useful tool to assess HRQoL in adult patients with C1-INH-HAE, although with some content validity limitation.Methods: The psychometric properties of the SF-36v2 were evaluated in an international setting based on responses from 290 adult C1-INH-HAE patients in 11 countries. [ABSTRACT FROM AUTHOR]- Published
- 2022
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3. International consensus on the diagnosis and management of pediatric patients with hereditary angioedema with C1 inhibitor deficiency
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Farkas, H, Martinez Saguer, I, Bork, K, Bowen, T, Craig, T, Frank, M, Germenis, Ae, Grumach, As, Luczay, A, Varga, L, Zanichelli, A, Aberer, W, Andrejevic, S, Aygoeren Pürsün, E, Banerji, A, Bara, Na, Bas, M, Bernstein, J, Betschel, S, Björkander, J, Boccon Gibod, I, Bouillet, L, Bova, M, Boysen, Hh, Branco Ferreira, M, Bygum, A, Caballero, T, Cancian, M, Castaldo, A, Christiansen, S, Cicardi, M, Drouet, C, Fabiani, J, Gompels, M, Gonzalez Quevedo MT, Gooi, J, Gower, R, Gökmen, Nm, Grivcheva Panovska, V, Guilarte, M, Gülbahar, O, Hack, E, Hakl, R, Harmat, G, Mjeseňák, M, Jolles, S, Kaplan, A, Katelaris, C, Kosnik, M, Kőhalmi, Kv, Leibovich, I, Levi, M, Li, H, Longhurst, Hj, Lumry, W, Magerl, M, Malbran, A, Martin, L, Maurer, M, Mihály, E, Moldovan, D, Murdjeva, M, Nagy, Ib, Nielsen, Ew, Nieto, S, Nordenfelt, P, Obtulowitzc, K, Pedrosa, M, Porębski, G, Prior, N, Reshef, A, Riedl, Ma, Rosenkranz, B, Schmid Grendelmeier, P, Péter, S, Speletas, M, Staevska, M, Stobiecki, M, Triggiani, Massimo, Veszeli, N, Wuillemin, W, Xiang, Zy, Yamamoto, B, and Zuraw, B.
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Male ,Abdominal pain ,Pediatrics ,diagnosis ,Comorbidity ,Disease ,Severity of Illness Index ,Ecallantide ,0302 clinical medicine ,Risk Factors ,Diagnosis ,Immunology and Allergy ,heterocyclic compounds ,030212 general & internal medicine ,Hereditary angioedema ,Pediatric ,Hereditary Angioedema Types I and II ,Age Factors ,Disease Management ,Combined Modality Therapy ,Immunodeficiencies ,Management ,Female ,Original Article ,Symptom Assessment ,medicine.symptom ,management ,Algorithms ,medicine.drug ,medicine.medical_specialty ,C1 inhibitor deficiency ,Immunology ,03 medical and health sciences ,Meta-Analysis as Topic ,medicine ,Humans ,Mucous Membrane ,Adult patients ,business.industry ,Original Articles ,bacterial infections and mycoses ,medicine.disease ,hereditary angioedema ,respiratory tract diseases ,Clinical trial ,pediatric ,030228 respiratory system ,Differential diagnosis ,business ,Biomarkers - Abstract
BACKGROUND: The consensus documents published to date on hereditary angioedema with C1 inhibitor deficiency (C1-INH-HAE) have focused on adult patients. Many of the previous recommendations have not been adapted to pediatric patients. We intended to produce consensus recommendations for the diagnosis and management of pediatric patients with C1-INH-HAE.METHODS: During an expert panel meeting that took place during the 9th C1 Inhibitor Deficiency Workshop in Budapest, 2015 (www.haenet.hu), pediatric data were presented and discussed and a consensus was developed by voting.RESULTS: The symptoms of C1-INH-HAE often present in childhood. Differential diagnosis can be difficult as abdominal pain is common in pediatric C1-INH-HAE, but also commonly occurs in the general pediatric population. The early onset of symptoms may predict a more severe subsequent course of the disease. Before the age of 1 year, C1-INH levels may be lower than in adults; therefore, it is advisable to confirm the diagnosis after the age of one year. All neonates/infants with an affected C1-INH-HAE family member should be screened for C1-INH deficiency. Pediatric patients should always carry a C1-INH-HAE information card and medicine for emergency use. The regulatory approval status of the drugs for prophylaxis and for acute treatment is different in each country. Plasma-derived C1-INH, recombinant C1-INH, and ecallantide are the only agents licensed for the acute treatment of pediatric patients. Clinical trials are underway with additional drugs. It is recommended to follow up patients in an HAE comprehensive care center.CONCLUSIONS: The pediatric-focused international consensus for the diagnosis and management of C1-INH-HAE patients was created.
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- 2016
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4. Evidence-based recommendations for the therapeutic management of angioedema owing to hereditary C1 inhibitor deficiency: consensus report of an International Working Group
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Cicardi, M, Bork, K, Caballero, T, Craig, T, Hh, L, Longhurst, H, Reshef, A, Zuraw, B, Aberer, W, Aygören Pürsün, E, Banerji, A, Bjorkander, J, Boccon Gibod, I, Bouillet, L, Grenoble, F, Bova, M, Bowen, T, Calgary, C, Branco, F, Bygum, A, Cancian, M, Castel Branco, M, de Carolis, C, Mihály, E, Fabiani, J, Farkas, H, Gompels, M, Gower, R, Groffik, A, Grumach, A, Guillarte, M, Hack, E, Hernandez, L, Kaplan, A, Lara, A, Leibovich, I, Li, H, Lock, B, Lumry, W, Malbran, A, Martinez Saguer, I, Matta, C, Maurer, M, Moldovan, D, Montinaro, V, Nieto, S, Nordenfelt, P, Obtulovicz, K, Perricone, R, Prior, N, Riedl, M, Rodrigues do, V, Savoca, C, Spaeth, P, Staubach Renz, P, Stobiecki, M, Triggiani, M, Vacchini, R, Varga, L, Zanichelli, A, Zarchi, K, Zeerleder, S, and Zingale, L
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C1 inhibitor ,Immunology ,Angioedemas, Hereditary ,Angioedemas ,Complement C1 Inactivator Proteins ,bradykinin receptor antagonist ,Bradykinin ,hereditary angioedema ,Settore MED/16 - Reumatologia ,kallikrein inhibitor ,Hereditary ,consensus document ,Bradykinin Receptor Antagonists ,Complement C1 Inhibitor Protein ,Humans ,Kallikreins ,Peptides ,Immunology and Allergy - Abstract
Angioedema owing to hereditary deficiency of C1 inhibitor (HAE) is a rare, life-threatening, disabling disease. In the last 2 years, the results of well-designed and controlled trials with existing and new therapies for this condition have been published, and new treatments reached the market. Current guidelines for the treatment for HAE were released before the new trials and before the new treatments became available and were essentially based on observational studies and expert opinion. To provide evidence-based HAE treatment guidelines supported by the new studies, a conference was held in Gargnano del Garda, Italy, from September 26 to 29, 2010. The meeting hosted 58 experienced HAE expert physicians, representatives of pharmaceutical companies and representatives of HAE patients' associations. Here, we report the topics discussed during the meeting and evidence-based consensus about management approaches for HAE in adult/adolescent patients.
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- 2012
5. Recombinant human C1 inhibitor for the prophylaxis of hereditary angioedema attacks: a pilot study
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Reshef, A., primary, Moldovan, D., additional, Obtulowicz, K., additional, Leibovich, I., additional, Mihaly, E., additional, Visscher, S., additional, and Relan, A., additional
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- 2012
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6. Localized renal cell carcinoma treated by radical nephrectomy. Influence of pathologic data and the importance of DNA ploidy pattern on disease outcome.
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Raviv, Gil, Leibovich, Ilan, Mor, Yoram, Nass, Devora, Medalia, Ora, Goldwasser, Benad, Nativ, Ofer, Raviv, G, Leibovich, I, Mor, Y, Nass, D, Medalia, O, Goldwasser, B, and Nativ, O
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- 1993
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7. The Story of Angioedema: from Quincke to Bradykinin.
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Reshef A, Kidon M, and Leibovich I
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- Angioedema diagnosis, Angioedema history, Angioedema therapy, Animals, Combined Modality Therapy, Complement C1 Inhibitor Protein genetics, Complement C1 Inhibitor Protein metabolism, Complement C1 Inhibitor Protein therapeutic use, Fibrinolysis, Genetic Predisposition to Disease, History, 15th Century, History, 16th Century, History, 17th Century, History, 18th Century, History, 19th Century, History, 20th Century, History, 21st Century, History, Ancient, History, Medieval, Humans, Receptors, Bradykinin metabolism, Treatment Outcome, Angioedema etiology, Bradykinin metabolism
- Abstract
The term "swelling" has been used in the old scriptures to illustrate a change of normal figure and, as such, an expression of illness. It should be noted that in ancient times, human diseases were very often regarded a punishment from God. Hence, it is not surprising that one of the oldest tests for infidelity involved swelling as an inflicted punishment. The great Greek physician Hippocrates (377-460 BC), considered one of the most outstanding figures in the history of medicine and "Father of the Western Medicine," already used the term oídēma to describe swelling of organs. It took many centuries later until the first description of angioedema as a distinct medical entity was minted by Quinke in 1882. The historical progression in angioedema research has been characterized by intermittent "leaps" in interest and scientific achievements. As an example, it took 75 years from the accurate description of hereditary angioedema (HAE) by Osler (1888), until a group of researchers headed by Donaldson (1963) disclosed the central role of C1 inhibitor in angioedema pathophysiology. What followed was a result of a collective effort by many researchers and scientific groups who were able to elucidate the intricate connections between the implicated biochemical pathways. Still, scientific progress was hardly translated into effective therapy, and another 45 years had to elapse until the renewed interest in HAE was boosted by studies on the efficacy and safety of novel therapies about 10 years ago. In the twenty-first century, HAE ceased to be an "orphan disease" and its future is far more optimistic. It is better managed now by specialized angioedema centers, harmonized clinical guidelines, educational programs, laboratory services, and continued basic and clinical research. Patient associations worldwide are offering support and guidance, and governments and healthcare systems are gradually addressing patient and family needs.
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- 2016
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8. Psychometric Field Study of Hereditary Angioedema Quality of Life Questionnaire for Adults: HAE-QoL.
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Prior N, Remor E, Pérez-Fernández E, Caminoa M, Gómez-Traseira C, Gayá F, Aabom A, Aberer W, Betschel S, Boccon-Gibod I, Bouillet L, Bygum A, Csuka D, Farkas H, Gomide M, Grumach A, Leibovich I, Malbran A, Moldovan D, Mihaly E, Obtulowicz K, Perpén C, Peveling-Oberhag A, Porebski G, Chavannes CR, Reshef A, Staubach P, Wiednig M, and Caballero T
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- Adult, Female, Humans, Male, Psychometrics, Angioedemas, Hereditary psychology, Quality of Life, Surveys and Questionnaires
- Abstract
Background: Hereditary angioedema due to C1 inhibitor deficiency (C1-INH-HAE) may affect health-related quality of life (HRQoL). A specific HRQoL questionnaire for adult patients with C1-INH-HAE, the HAE-QoL, has recently been developed in Spain., Objective: The objective of this study was to perform a cross-cultural validation and psychometric study of the HAE-QoL in an international setting., Methods: Cross-cultural adaptation of the Spanish HAE-QoL draft version and an international rating phase with experts were performed. The resultant version of the HAE-QoL, a clinical questionnaire, and Short Form 36-item Health Survey Version 2.0 (SF-36v2) were pilot tested internationally. Item reduction was based on both descriptive and exploratory factor analysis. Psychometric properties were assessed., Results: Cross-cultural adaptation of the HAE-QoL was performed in 18 countries. The draft version of the HAE-QoL was pilot tested in 332 patients, and accurate data were obtained from 290 patients from 11 countries. The reduction process resulted in a new version with 25 items and 7 dimensions (treatment difficulties, physical functioning and health, disease-related stigma, emotional role and social functioning, concern about offspring, perceived control over illness, and mental health). Strong psychometric properties were observed (Cronbach's α 0.92; test-retest reliability 0.87). Convergent validity showed mild to moderate correlations with SF-36v2 physical and mental component summaries (0.45 and 0.64, respectively) and with SF-36v2 dimensions (P < .004). HAE-QoL scores discriminated significantly among severity groups (median: asymptomatic 133.5 vs severe 84.0; P < .001); between patients with and without long-term prophylaxis (median: 101 vs 90; P = .001); and between patients with and without psychiatric and/or psychological care (median: 74 vs 103; P ≤ .001)., Conclusions: The HAE-QoL, currently available in 18 languages, showed good reliability and validity evidence., (Copyright © 2016 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.)
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- 2016
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9. Bullying and victimization in early adolescence: relations to social information processing patterns.
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Ziv Y, Leibovich I, and Shechtman Z
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- Adolescent, Female, Hostility, Humans, Male, Peer Group, Schools, Sex Factors, Social Behavior, Adolescent Behavior psychology, Aggression psychology, Bullying psychology, Crime Victims psychology, Social Perception
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There is a gap in the literature on the social information processing (SIP) patterns of adolescents exposed to victimization in school. Therefore, we examine the SIP patterns of young adolescents characterized by their teachers and by their own reports as victims, bullies, bullies/victims, and neither bullies nor victims. The 105 adolescents participating in this study were asked to respond to hypothetical social scenarios in which a protagonist is either rebuffed or provoked by peers. The scenarios were ambiguous in nature and thus could have been processed in different ways. Indeed, distinctive processing patterns were found for each of these groups: victims tended to avoid challenging social situations while expecting others to be purposefully hostile or ignoring; bullies tended to interpret others as purposefully hostile and stated their desire to retaliate; bullies/victims showed patterns more similar to those of the bullies than the victims; and those who were neither victims nor bullies tended to view the same challenging social situations as non hostile and more likely to end well for them. We conclude by discussing the theoretical and practical implications of these findings., (© 2013 Wiley Periodicals, Inc.)
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- 2013
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10. [Hereditary angioedema: new mechanisms and therapeutic options].
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Reshef A, Leibovich I, Goren A, and Kidon M
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- Angioedemas, Hereditary diagnosis, Angioedemas, Hereditary genetics, Angioedemas, Hereditary physiopathology, Animals, Animals, Genetically Modified, Complement C1 Inactivator Proteins deficiency, Diagnosis, Differential, Humans, Practice Guidelines as Topic, Rabbits, Angioedemas, Hereditary therapy
- Abstract
Hereditary angioedema (HAE) is a rare genetic disorder, manifested by recurrent bouts of swelling in various tissues. The biochemical basis leading to HAE manifestations is either a quantitative or qualitative deficiency in plasma C1 esterase inhibitor (C1-INH). Its proposed physiological role is regulation of vascular permeability, by inhibiting certain steps in the complement, coagulation and the fibrinolytic pathways. Recent evidence implies that bradykinin, a plasma kinin, is the main mediator of HAE, Leading to vasodilatation and hyperpermeability of small vessels. Bradykinin receptors have been recently identified, Leading to significant progress in our understanding of the physiologic mechanisms leading to edema. HAE is characterized by edema of the extremities, face, tongue, Larynx, genitalia and severe abdominal pains. Edema of the tongue and Larynx are life-threatening, and fataloutcomes have been described. Diagnosis of HAE is frequently missed, due to the rarity, non-specific symptoms and lack of awareness of physicians to the diagnosis and treatment. In this review, the authors describe the mechanisms of HAE and the clinical approach to diagnosis and management, according to accepted international guidelines. Furthermore, new treatment modalities that have recently been developed are presented: novel molecules targeting bradykinin, either by inhibiting its generation from plasma kininogens or by direct inhibition of its specific receptors on blood vessels, replacement therapy with human recombinant C1-INH produced in transgenic rabbits. HAE is a chronic disabling diseasewith serious consequences for the patients and their families, severely affecting the quality of life. Recently, new clinical guidelines were published and treatment centers, specializing in the management of HAE were established. The authors are convinced that the increased awareness of the medical staff, in addition to new data and novel treatments, will reduce the burden of the disease, improve its grim prognosis and enable a better quality of life for HAE patients.
- Published
- 2009
11. Hereditary angioedema: new hopes for an orphan disease.
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Reshef A, Leibovich I, and Goren A
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- Abdominal Pain drug therapy, Abdominal Pain etiology, Angioedemas, Hereditary classification, Angioedemas, Hereditary physiopathology, Bradykinin adverse effects, Bradykinin pharmacology, Bradykinin therapeutic use, Clinical Trials as Topic, Double-Blind Method, Female, Humans, Kallikreins antagonists & inhibitors, Male, Multicenter Studies as Topic, Nausea drug therapy, Nausea etiology, Peptides pharmacology, Treatment Outcome, Angioedemas, Hereditary drug therapy, Bradykinin analogs & derivatives, Bradykinin Receptor Antagonists, Peptides therapeutic use
- Abstract
Hereditary angioedema is a rare genetic disorder, manifested by recurrent edema leading to disfigurement, organ dysfunction and life-threatening respiratory impairment that may become fatal. The hallmark of HAE is C1 esterase inhibitor deficiency, but recent evidence points at bradykinin as the main mediator that causes hyperpermeability of small vasculature, leading to accumulation of edema fluid. Current therapeutic options for HAE are limited, and consist of drugs, replacement therapy, and supportive treatment. In view of many disadvantages of the current therapeutic modalities, new approaches to the treatment of HAE are now being offered. This review summarizes our experience with a new line of medications developed for the treatment of acute exacerbations and prophylaxis of HAE--icatibant: bradykinin receptor antagonist, ecallantide: kallikrein inhibitor, and two C1 INH preparations: Berinert-P, human plasma-derived concentrate, and Rhucin: novel recombinant C1-INH produced in transgenic rabbits. Preliminary results of these studies are encouraging and may bring new hope to the patients with this distressing condition. The exact number of HAE patients in Israel is unknown and because patients are treated individually and comprehensive laboratory assessment is partial, many cases might be missed or not treated according to accepted guidelines. We offer a new specialty center for HAE patients, addressing the medical and psychosocial needs of patients and their families.
- Published
- 2008
12. Testicular seminoma: clinical significance of nuclear deoxyribonucleic acid ploidy pattern as studied by flow cytometry.
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Mor Y, Leibovich I, Raviv G, Nass D, Medalia O, Goldwasser B, and Nativ O
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- Adult, Aged, Aneuploidy, Diploidy, Humans, Male, Middle Aged, Prognosis, Seminoma pathology, Testicular Neoplasms pathology, DNA, Neoplasm analysis, Flow Cytometry, Ploidies, Seminoma mortality, Testicular Neoplasms mortality
- Abstract
Purpose: We evaluated the clinical significance of deoxyribonucleic acid (DNA) ploidy pattern as a predictor of prognosis in patients with testicular seminoma., Materials and Methods: Flow cytometric nuclear DNA analysis was performed on archival specimens from 65 patients with pure seminoma who underwent radical orchiectomy between 1970 and 1992., Results: A total of 42 specimens (65%) exhibited a DNA diploid pattern, while 23 (35%) were DNA aneuploid. Diploidy was manifested in 73% of the stage I tumors versus 31% of stage II cancers (p = 0.004). No correlation was found between ploidy and histological type, size or local extension of the tumor. Tumor progression was observed in 5 patients, exclusively displaying aneuploid histograms (p = 0.0017), and 3 of them subsequently died of the disease., Conclusions: DNA ploidy pattern may provide important prognostic information for patients with testicular seminoma.
- Published
- 1995
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13. Radical retropubic prostatectomy in the treatment of localized prostate cancer: experience with 100 consecutive cases.
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Mor Y, Shenfeld O, Leibovich I, Raviv G, Nativ O, and Goldwasser B
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- Adult, Aged, Humans, Male, Middle Aged, Neoplasm Recurrence, Local, Prostatic Neoplasms pathology, Retrospective Studies, Prostatectomy adverse effects, Prostatic Neoplasms surgery
- Abstract
In recent years radical retropubic prostatectomy is used with increasing frequency to treat localized cancer of the prostate. We report our experience with 100 consecutive cases of prostate cancer that underwent this operation; there were no cases of mortality and a 7% rate of postoperative complications. More than 90% of the patients are socially continent postoperatively and 20% have retained sexual potency. Ninety-four percent of the patients are free of disease (mean follow-up period 18 months). In our opinion, such results support the use of radical retropubic prostatectomy for the treatment of localized prostate cancer in well-selected patients.
- Published
- 1995
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