Christian Hampel

Klinikum Darmstadt, Darmstadt, Hesse, Germany

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Publications (38)126.56 Total impact

  • Article: Robot-assisted ascending-descending laparoscopic nerve-sparing prostatectomy.
    BJU International 08/2009; 104(1):128-53. · 2.84 Impact Factor
  • Article: Renal cancer surgery in the elderly.
    Frederik C Roos, Christian Hampel, Joachim W Thüroff
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    ABSTRACT: Renal cell carcinoma mainly develops in the sixth or seventh decade of life. As life expectancy increases, urologists have to deal with elderly patients presenting with renal cancer. The introduction of ablative techniques has even widened our armamentarium of treating elderly patients with renal cancer apart from the standard laparoscopic and open surgical procedures. Our review highlights the current literature focusing on the functional and oncological outcome of surgically treated renal cancer in elderly patients. Despite the higher percentage of comorbidities, perioperative morbidity and declined renal reserve in elderly patients, radical or partial nephrectomy being performed open or laparoscopically for localized disease offers excellent functional and oncological outcome in this age group. Elderly patients seem to benefit more from laparoscopic procedures with lower rates of perioperative morbidity and faster convalescence compared with the open approach. Ablative techniques performed percutanousely may be promising for small renal masses in the future. Surgical treatment of renal cancer performed laparoscopically or open is feasible and well tolerated in elderly patients, with low perioperative morbidity and a good overall survival rate. Long-term results for ablative techniques are still missing for this age group. Patients should be carefully selected for one of the surgical treatments according to their health, fitness, wishes and the experience of the referred centre.
    Current opinion in urology 07/2009; 19(5):459-64. · 2.50 Impact Factor
  • Article: Impact of several histopathological prognosticators and local tumour extension on oncological outcome in pT3b/c N0M0 renal cell carcinoma.
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    ABSTRACT: To investigate the prognostic relevance of different histopathological features and local tumour extension in patients with pT3b/c N0M0 renal cell carcinoma (RCC), as recently new proposals of reclassifying tumour fat invasion in pT3b/c RCC have been made but the effect of other histopathological tumour characteristics and combinations thereof with tumour invasion has yet to be determined in these patients. Between 1990 and 2006, 1943 patients underwent surgical treatment for renal tumours in our institution, of which 175 patients (8.7%) had pT3b/c RCC. After exclusion of 57 patients (32.6%) with lymph node and/or distant metastases at the time of diagnosis, 118 (67.4%) remained for retrospective analysis. Different histopathological features and local tumour extension were studied for their association with cancer-specific-survival (CSS) and progression-free-survival (PFS) by univariate and multivariate analyses. Histopathology was reviewed and revised according to the 2002 Tumour-Nodes-Metastasis (TNM) classification system by one pathologist (S.B.). CSS and PFS were estimated by the Kaplan-Meier method. Follow-up data were obtained from 110 patients at a median (range) of 3.2 (0.3-16.1) years. In univariate analysis, microvascular invasion (MVI) and capsular invasion increased the risk of tumour progression by 2.05- and 2.72-times (P = 0.037 and P < 0.001). Overall, tumour fat invasion (TFI) and the presence of areas composed by cells with eosinophilic cytoplasm were associated with a higher risk of progression (P = 0.001 and P = 0.011) and reduced CSS (P = 0.037 and P = 0.017). In multivariate analysis, MVI and capsular invasion were associated with a two-fold increased risk of dying from cancer (hazard risk ratio, HR 2.22, P = 0.045 and HR 2.31, P = 0.011). TFI in general (P = 0.004) and specifically coexistent perirenal fat invasion (PFI) and renal sinus fat invasion (RSFI) were associated with a three-fold increased risk of developing tumour progression (HR 3.36, P = 0.001). The 10-year CSS and PFS rates were 39% and 36% for all patients, 47% and 45% for pT3b/c RCC with no PFI or RSFI, and 25% and 10% for PFI + RSFI. Patients with pT3b/c RCC with MVI, capsular invasion, TFI and especially PFI + RSFI, have a markedly reduced prognosis compared with patients with pT3b/c RCC without these features. When these results are corroborated by additional studies and external validation, modification of the TNM classification system would be a sensible consequence.
    BJU International 04/2009; 104(4):461-9. · 2.84 Impact Factor
  • Article: Cancer-specific survival after radical cystectomy and standardized extended lymphadenectomy for node-positive bladder cancer: prediction by lymph node positivity and density.
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    ABSTRACT: To investigate the associations between different overall or topographically restricted lymph node (LN) variables and cancer-specific survival (CSS) after radical cystectomy (RC) and extended LN dissection (LND) with curative intent in patients with LN-positive bladder cancer. Between 2001 and 2006, 152 patients had RC with standardized extended LND for bladder cancer with curative intent. Patients with positive LNs were stratified according to the median of the LN variables (LNs removed, number of positive LNs, LN density). CSS was related to overall and topographically restricted LN variables, e.g. different levels of LND, and relationships were tested by univariate and multivariate analyses. Level 1 LND comprised the regions of the external and internal iliac LNs and of the obturator LNs, level 2 the templates of common iliac and presacral LNs, and level 3 the para-aortic and paracaval LNs up to the inferior mesenteric artery. The mean (range) follow-up was 22 (1-84) months. LN metastases were diagnosed in 46 of the 152 patients (30%) with extended LND. In these 46 patients, the median number of removed LNs was 33 (level 1, 15.5; level 2, 9.0; level 3, 7.0), the median number of positive LNs was 3 (1.5, 0.5 and 0.0, respectively) and the median LN density was 0.11 (0.10, 0.02 and 0.0, respectively). The CSS was 76% at 1 year and 23% at 3 years. There were significant correlations between the 3-year CSS and the overall LN density (< or =0.11 vs >0.11; 34% vs 8%, P = 0.008), and the total number of positive LNs (< or =3 vs >3; 33% vs 8%; P = 0.05). Overall LN density (hazard ratio 0.33, 95% confidence interval 0.15-0.72; P = 0.006) was an independent predictor for CSS in multivariate analysis. CONCLUSIONS Overall LN density is an independent predictor of survival after RC and extended LND with curative intent. Evaluation of topographically restricted LN positivity and density for different regions and levels of LND does not improve the prediction of CSS compared with overall LN positivity and density. A low incidence of level 3 LN positivity questions the clinical relevance of removing para-aortic and paracaval LNs. However, our data need to be confirmed by a prospective randomized trial.
    BJU International 02/2009; 104(3):331-5. · 2.84 Impact Factor
  • Article: Low-frequency extracorporeal shock wave lithotripsy improves renal pelvic stone disintegration in a pig model.
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    ABSTRACT: To compare disintegration rates for renal stones treated by 60 vs 120 shock waves (SW)/min at the same energy settings, using standardized validated artificial stones in a pig model. Gypsum artificial stones (13 x 6 mm) were inserted into the renal pelvis on either side of 12 anaesthetized pigs by open surgery. Extracorporeal SW lithotripsy (ESWL) was applied using a new electromagnetic lithotripter (Lithoskop, Siemens AG Healthcare, Munich, Germany) at 60 and 120 SW/min; 3000 SW were applied to each kidney with the same energy settings. Stone fragments were collected after nephrectomy, passed through calibrated test sieves, and weighed. Fragment size categories were stratified according to the sieve hole size as set by the manufacturer. Fragments of < or =4.75 mm were defined as capable of spontaneous passage. For each pig the number of stone fragments of the respective size categories was counted and weighed. The results were analysed statistically using the Mann-Whitney U-test. For fragments of >4.75 mm, the median (range) fragment counts were 0 (0-1) for 60 and 1 (0-3) for 120 SW/min (P = 0.006). For small fragments of 2.0-2.8 mm, the median fragment counts were 15 (4-24) for 60 and 10 (2-25) for 120 SW/min (P = 0.033); for fragments of 1.0-2.0 mm the respective values were 42.5 (9-81) and 21.5 (6-56) (P = 0.004). Of the total stone fragment mass in the 60 and 120 SW/min groups, 4.34% and 31.31% were >4.75 mm. There was complete disintegration yielding fragments capable of spontaneous passage in 10 of 12 renal units at 60 and in three of 12 renal units at 120 SW/min. The mean treatment time was 55.4 min for therapy at 60 and 34.3 min for therapy at 120 SW/min (P = 0.001). One parenchymal haematoma of 15 x 10 mm developed in the 60 SW/min group and another of 20 x 10 mm developed in the 120 SW/min group. ESWL fragmentation with equal energy application yields significantly smaller fragments at 60 than at 120 SW/min. The theoretical stone passage rate could therefore be approximately 80% for 60 vs 25% for 120 SW/min ESWL. Renal haematoma formation was comparable in both groups.
    BJU International 01/2009; 103(9):1284-8. · 2.84 Impact Factor
  • Article: Extraprostatic spindle cell stromal tumor of the prostate: case report.
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    ABSTRACT: Several benign and malignant nonepithelial and stromal-like lesions arise in the prostate. Because such lesions are rare, their recognition is essential, because treatment and prognosis depend on an adequate pathohistologic classification. We report a case of an 83-year-old man with a stromal tumor of the prostate of uncertain malignant potential (STUMP). He presented with urinary retention and rectal constipation. On bimanual examination, a rectally and suprapubically palpable mass was found. Imaging studies revealed a 12 x 8 cm pararectal inhomogeneous mass of uncertain origin compressing rectum and urethra. The tumor was resected by a retropubic approach and examined immunohistochemically.
    Urology 07/2008; 71(6):1226.e13-5. · 2.43 Impact Factor
  • Article: Single-institution experience with primary tumours of the male urethra.
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    ABSTRACT: To assess primary tumours of the urethra in males. We retrospectively reviewed our database from 1986 to 2006 for primary tumours of the male urethra; nine patients with primary tumours of the urethra were analysed and follow-up information was obtained. Three patients had tumours of the prostatic urethra, two of which had proliferating focal inflammation and one a low-grade, superficial urothelial cancer. All patients were treated successfully with transurethral resection. Six patients had carcinoma of the bulbar or penile urethra, including two with previous local percutaneous radiotherapy for prostate cancer. All had primary surgical excision that was adapted to tumour location and extension. One patient had adjuvant chemotherapy after surgery. All but one patient remain recurrence-free after a median follow-up of 20 months. Primary carcinoma of the male urethra is a rare entity. Previous radiotherapy might be a predisposing factor. Local surgical tumour control is essential for long-term survival, but the extent of surgery depends on tumour location and stage. Multimodal therapy might be required to obtain an optimum oncological outcome.
    BJU International 05/2008; 101(8):964-8. · 2.84 Impact Factor
  • Article: Patient characteristics associated with quality of life in European women seeking treatment for urinary incontinence: results from PURE.
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    ABSTRACT: To investigate the association between patient characteristics and disease-specific and generic quality of life (QOL) as well as the degree of bother in women seeking treatment for urinary incontinence (UI). The Prospective Urinary Incontinence Research (PURE) was a 6-mo observational study with 1055 physicians from 15 European countries enrolling 9487 women. QOL was assessed at the enrolment visit using the urinary Incontinence Quality of Life questionnaire (I-QOL) and the generic EQ-5D. A single-item instrument was used to measure the degree of bother. UI severity was assessed using the Sandvik Index. UI was categorised into stress (SUI), mixed (MUI), and urge (UUI) urinary incontinence by a patient-administered instrument (Stress and Urge Incontinence Questionnaire [S/UIQ]). Multivariate linear (I-QOL, EQ-5D Visual Analogue Scale) and logistic (bother, EQ-5D health state index) regressions were performed. Mean total I-QOL scores were significantly and independently associated with UI severity, nocturia, age, UI subtype, number of selected concomitant medical conditions, length of suffering from UI before contacting a doctor, smoking status, ongoing use of UI medication, and country. After adjusting for all the covariates, the total I-QOL scores for SUI, MUI, and UUI were 62.7, 53.8 and 60.1, respectively. As with I-QOL, UI severity was also the most important predictor for bother. The number of concomitant medical conditions, together with UI severity, was the variable most strongly associated with EQ-5D. In addition to the UI subtypes, severity of UI should be given more importance in treatment algorithms and in treatment decision-making by both the patient and the physician.
    European Urology 05/2007; 51(4):1073-81; discussion 1081-2. · 8.49 Impact Factor
  • Source
    Article: Population-based survey of urinary incontinence, overactive bladder, and other lower urinary tract symptoms in five countries: results of the EPIC study.
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    ABSTRACT: Estimate the prevalence of urinary incontinence (UI), overactive bladder (OAB), and other lower urinary tract symptoms (LUTS) among men and women in five countries using the 2002 International Continence Society (ICS) definitions. This population-based, cross-sectional survey was conducted between April and December 2005 in Canada, Germany, Italy, Sweden, and the United Kingdom using computer-assisted telephone interviews. A random sample of men and women aged >/= 18 yr residing in the five countries and who were representative of the general populations in these countries was selected. Using 2002 ICS definitions, the prevalence estimates of storage, voiding, and postmicturition LUTS were calculated. Data were stratified by country, age cohort, and gender. A total of 19,165 individuals agreed to participate; 64.3% reported at least one LUTS. Nocturia was the most prevalent LUTS (men, 48.6%; women, 54.5%). The prevalence of storage LUTS (men, 51.3%; women, 59.2%) was greater than that for voiding (men, 25.7%; women, 19.5%) and postmicturition (men, 16.9%; women, 14.2%) symptoms combined. The overall prevalence of OAB was 11.8%; rates were similar in men and women and increased with age. OAB was more prevalent than all types of UI combined (9.4%). The EPIC study is the largest population-based survey to assess prevalence rates of OAB, UI, and other LUTS in five countries. To date, this is the first study to evaluate these symptoms simultaneously using the 2002 ICS definitions. The results indicate that these symptoms are highly prevalent in the countries surveyed.
    European Urology 01/2007; 50(6):1306-14; discussion 1314-5. · 8.49 Impact Factor
  • Article: Nephron sparing surgery for renal cell carcinoma with normal contralateral kidney: 25 years of experience.
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    ABSTRACT: We report the long-term results of our consecutive series of 504 patients who underwent NSS for cancer suspicious, solid renal tumors in the presence of a normal opposite kidney at our institution since 1979. A total of 715 patients underwent NSS since 1969, including 504 for an elective indication, that is with a normal opposite kidney. Of these patients 381 (75.6%) had RCC, 123 (24.4%) had cancer suspicious benign lesions, including 53 (10.5%) with oncocytoma, 33 (6.5%) with angiomyo(lipo)ma, 23 (4.6%) with a complicated cyst and 13 (2.8%) with other benign lesions. Of the 381 patients with RCC 283 (74.3%) had clear cell, 68 (17.8%) had papillary and 30 (7.9%) had chromophobic RCC. Mean tumor diameter was 3.0 cm (range 0.5 to 11.0). Mean followup was 6.77 years (range 0.2 to 24.1). The oncological outcome was studied, including pathological features associated with tumor progression. Estimated cancer specific survival rates at 5 and 10 years were 98.5% and 96.7%, respectively. Estimated survival rates free of distant metastasis at 5 and 10 years were 97.5% and 95.1%, respectively. Nine patients with localized RCC experienced local recurrence after NSS. Estimated survival rates free of local recurrence at 5 and 10 years were 98.3% and 95.7%, respectively. The long-term results of our series support the concept of organ sparing surgery for RCC in the presence of a normal opposite kidney with excellent long-term survival and a low tumor recurrence rate.
    The Journal of Urology 07/2006; 175(6):2027-31. · 3.75 Impact Factor
  • Article: Intussuscepted ileal flap valve for revisional surgery.
    BJU International 01/2006; 96(9):1425-37. · 2.84 Impact Factor
  • Article: Medical resource utilisation and cost of care for women seeking treatment for urinary incontinence in an outpatient setting. Examples from three countries participating in the PURE study.
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    ABSTRACT: To describe the medical resource use and direct costs of treatment for women with urinary incontinence (UI) in European countries. PURE is a non-interventional, observational study of patients seeking treatment for UI in an outpatient setting. Investigators being either general practitioners (GPs) and/or specialists, i.e. urologists and gynaecologists, in 14 European countries participated in PURE. The results for medical resource use and cost of treatment in Germany, Spain and the UK/Ireland recorded retrospectively at the enrolment visit for the preceding 12 months are presented here. Treatment-seeking women aged over 18 years who were under treatment or seeking treatment for UI, and who presented within the normal course of care for UI were enrolled in the 6 months study. Information on the incontinence resource use was gathered on standard data collection forms. The direct medical costs were calculated by attaching the unit costs from the perspective of the relevant health insurance in each country to the country-specific resource use. Furthermore, the contribution of patients to the costs of pads, or any treatment for UI was assessed. Variation in medical resource use and cost of treatment between the three countries was observed, reflective of the differences in the healthcare systems and whether specialists and/or GPs provided the care. We found that women in Spain and Germany are more likely to have consulted a specialist for their UI symptoms, which had implications for utilisation of diagnostic procedures. Conservative treatment, particularly pelvis floor muscle exercises, was more common in patients in the UK/Ireland treated in primary care by GPs. In all three countries most of the women had used protective pads, which more than half the patients paying for them out-of-pocket, despite potential healthcare reimbursement schemes. Mean total UI-related costs per year ranged from 359 in the UK/Ireland for patients predominantly treated in the GP setting to 515 in Germany and 655 in Spain for patients treated by specialists and GPs. Our study provides an estimation of resource use and costs associated with UI in treatment-seeking European women, exemplified here in three countries.
    Maturitas 12/2005; 52 Suppl 2:S35-47. · 2.77 Impact Factor
  • Article: A description of health care provision and access to treatment for women with urinary incontinence in Europe -- a five-country comparison.
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    ABSTRACT: Female urinary incontinence is a prevalent condition, but only about one-third of women seek treatment. To describe the health care provision for women with urinary incontinence from a European perspective, selecting France, Germany, Spain, Sweden, and the United Kingdom as examples, and to investigate whether specific barriers for treatment exist. Available health care system information, a literature review and clinical expert information identified patterns of treatment provision. In Spain, Sweden, and the UK, access to medical care in general is primarily through the general practitioners. However, in Spain and Sweden, women with urinary incontinence can directly visit specialists. In France and Germany, women have equal access to either general practitioners or specialists. Aside from general practitioners, gynaecologists play a major role in urinary incontinence care in all countries except the UK. In Germany, urologists are also involved in initial female urinary incontinence care; however, only in about 16% of women. There are no waiting lists in France and Germany for appointments with physicians or procedures, contrary to Spain, which has long waiting lists. Access to general practitioners in the UK is unrestricted whereas advanced diagnosis and treatment in secondary care requires long waits. A specific Swedish policy mandates that no woman is required to wait longer than 3 months for incontinence visits and related surgery. In Sweden and the UK, specialist nurses and other health care workers provide incontinence services. Almost all treatment options for urinary incontinence are at least in part reimbursed. However, various co-payments and fees in France, Germany, Spain and Sweden exist and constitute out-of-pocket expenses for women if no complementary additional private health insurance is available. In some countries, financial incentives for physicians to provide incontinence services are low, raising concerns about their interest to engage in continued patient care. Information about service provision in Europe for women with urinary incontinence is limited and makes it difficult to understand barriers to treatment seeking. A broad European perspective may promote optimised treatment access in the future for this widespread and under-recognised condition.
    Maturitas 12/2005; 52 Suppl 2:S3-12. · 2.77 Impact Factor
  • Article: Patient-reported impact of urinary incontinence--results from treatment seeking women in 14 European countries.
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    ABSTRACT: To describe the patient-reported impact of urinary incontinence (UI) in treatment-seeking women in Europe. PURE was a non-interventional, observational study, which aimed to describe the direct costs of treatment for European women seeking treatment for UI. A secondary study objective was to describe the impact of UI on health-related quality of life (HRQoL) by UI subtype and severity of disease. This paper presents the results from quality of life assessments as well as bothersomeness and interference with daily activities from the first study observation. Nine thousand four hundred and eighty-seven European women who had UI symptoms in the last 12 months were enrolled. Their UI symptoms were frequently those defined as mixed urinary incontinence (MUI) and were moderate to severe in nature. HRQoL was assessed at the first observation using the urinary Incontinence-specific Quality of Life Questionnaire (I-QOL) and the EQ-5D, a generic quality of life questionnaire. Data collected from EQ-5D provided insight into the patients' general health perception, while the I-QOL data indicated how affected the women were about their UI symptoms. Higher EQ-5D and I-QOL scores represent better quality of life. Patients were asked to indicate how much UI symptoms limited selected activities and to indicate the degree to which they found their symptoms to be bothersome. Overall, the median self-rated health status on the EQ-5D visual analogue scale (VAS) was 70.0 and the median EQ-5D health state index was 0.85, with small but noticeable differences observed between countries. Of the five health dimensions of the EQ-5D, patients' self-care appeared to be the least affected by UI, with fewer than 10% of the women reporting that they had some problems. Between 20 and 40% of patients had some problems with their mobility and usual activities, or had pain/discomfort or anxiety/depression. However, the impact of existing co-morbidity was not assessed and may have affected some women's scoring of the EQ-5D domains. The mean total I-QOL score overall was 57.7 and of the three subscales of the I-QOL, psychosocial impact had the highest overall scores, representing fewer problems, with lower scores observed for the avoidance and limiting behaviour subscale, and even lower scores for the social embarrassment subscale. The greatest patient-reported impact of UI symptoms on activities was on exercise, with more than 45% of patients moderately to totally limited in this activity. In most of the countries, more than 60% of the women reported that they were moderately to extremely bothered by their UI symptoms. There was considerable impact of UI on HRQoL in a treatment seeking population, as demonstrated by the disease-specific quality of life scale and by the high percentage of patients who were bothered by their symptoms.
    Maturitas 12/2005; 52 Suppl 2:S24-34. · 2.77 Impact Factor
  • Article: Characteristics of female outpatients with urinary incontinence participating in a 6-month observational study in 14 European countries.
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    ABSTRACT: To describe the characteristics of women seeking treatment for symptoms of urinary incontinence (UI) in European countries. Prospective urinary incontinence research (PURE) was a 6-month, observational, pan-European study, primarily aimed at determining the direct costs of urinary incontinence treatment. The secondary objectives of PURE were to describe the impact of UI on health-related quality of life (HRQoL) in treatment seeking patients and to illustrate the treatment patterns for UI in Europe. One thousand and Fifty-five physicians from 14 European countries, including general practitioners (GPs), gynaecologists, urologists and geriatricians, observed women seeking treatment for their UI and recorded data at the first observation and then prospectively at 3 and 6 months after the first observation during the normal course of therapy. Women of at least 18 years of age who had experienced urinary leakage in the 12 months prior to enrolment in the study, who were seeking treatment or under treatment for UI and who presented within the normal course of UI care were included in the 6 months study. The first observation characteristics of the patients are described here. Demographic characteristics, as well as disease and treatment status at first observation were explored using descriptive summary statistics to gain an understanding of the population studied. In total, 9487 women took part in PURE, with the largest patient groups from Germany, Spain and the UK/Ireland. The majority of women were post-menopausal and had a mean age of 60.7 years, were not current smokers and tended to be overweight (BMI > 25.0). Overall, mixed UI symptoms were more common than SUI and UUI, as defined by clinical opinion (SUI 38%, MUI 42% and UUI 18%), and by a two-item questionnaire, the S/UIQ (SUI 29%, MUI 58% and UUI 13%). Around half of the patients (48%) suffered from their symptoms for less than 2 years before consulting a physician; 28% delayed seeking treatment for 3-5 years, with 13% waiting for 6-10 years and the remaining 11% waiting for 11 or more years. Some of the described patients' characteristics may provide important information to clinicians to enable them to take a more active approach to case-finding, which will ultimately benefit the incontinent patient.
    Maturitas 11/2005; 52 Suppl 2:S13-23. · 2.77 Impact Factor
  • Article: Specific complications of radical perineal prostatectomy: a single institution study of more than 600 cases.
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    ABSTRACT: Although groups at several institutions have long experience with radical perineal prostatectomy (RPP), only few reports of larger series describe associated complications, mostly without reporting management options in detail. We analyzed specific perioperative and postoperative complications of the perineal approach and management strategies thereof. The medical records of 630 patients who underwent RPP between January 1997 and May 2003 were retrospectively reviewed in regard to complications and their management. Median followup was 8 months (range 1 to 68). Major complications requiring open surgical intervention were noted in 11 patients (1.7%) for a total surgical revision rate of 2.4% (15 of 630). Two patients with persistent urinary fistula required fistula excision and closure. Two patients with a rectocutaneous fistula needed temporary diverting colostomy. Three patients with a combined urinary and fecal fistula were treated with protective colostomy, fistula excision and the interposition of a tunica vaginalis graft. No further morbidity was observed in these patients. In 7 patients a subvesical hematoma was drained surgically, including 3 mentioned in whom a hematoma expanded into the urethral anastomosis. Minor complications, which could be successfully managed conservatively or with endoscopic interventions only, developed in 124 patients for a total rate of 19.7%. In the long term 9% of the patients experienced postoperative de novo changes in stool habits after RPP but only 2.7% reported distressing anal sphincter incompetence. RPP is a safe and reproducible procedure with low major complication and reintervention rates even in a training center setting with many involved surgeons. A subvesical hematoma should be revised early since it can be the origin of subsequent major complications.
    The Journal of Urology 08/2004; 172(1):124-8. · 3.75 Impact Factor
  • Article: Transitional cell carcinoma of the renal pelvis presenting as a renal abscess.
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    ABSTRACT: We report on a 76-year-old woman who was diagnosed with a primary renal abscess of the left kidney. After percutaneous drainage, no clinical improvement was observed. Surgical exploration and nephrectomy were performed. The histologic evaluation revealed an unsuspected transitional cell carcinoma of the renal pelvis, which had been misinterpreted as a primary renal abscess. Malignancy must be considered as an underlying cause for the formation of a renal abscess, especially if no other predisposing factors such as diabetes mellitus or urinary stones are present.
    Urology 08/2002; 60(1):165. · 2.43 Impact Factor
  • Article: Transposition of the left renal vein for treatment of the nutcracker phenomenon: long-term follow-up.
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    ABSTRACT: To assess the therapeutic value of left renal vein transposition for treatment of the nutcracker phenomenon in long-term follow-up. Eight patients (4 women and 4 men) between 23 and 58 years old (mean 39.1) underwent transposition of the left renal vein for treatment of the nutcracker phenomenon associated with recurrent gross hematuria and flank pain. The postoperative follow-up was 41 to 136 months (mean 66.4). No perioperative complications were encountered. The postoperative complications comprised deep vein thrombosis (n = 1), retroperitoneal hematoma necessitating surgical revision (n = 1), and paralytic ileus that resolved with conservative management (n = 1). One patient underwent laparotomy for treatment of mechanical ileus due to adhesions 4 years after the initial surgery. In 7 of 8 patients, transposition of the left renal vein efficiently relieved the symptoms related to the nutcracker phenomenon. In 1 patient, the hematuria persisted despite postoperative normalization of the pressure gradient between the left renal vein and the inferior vena cava. Transposition of the left renal vein is an efficient surgical approach for the treatment of the nutcracker phenomenon and is associated with an acceptable risk of complications. However, rare cases may be encountered in which the shunted connections between the renal veins and the collecting system are so matured that, despite removal of the obstruction of the renal venous backflow, gross hematuria may persist.
    Urology 04/2002; 59(3):354-7. · 2.43 Impact Factor