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J Leissner

Publications and source records attributed to J Leissner.

At least 19 recordsLinked to original sources
PubMed2005

[Lymphadenectomy for bladder cancer. Diagnostic and prognostic significance as well as therapeutic benefit].

BACKGROUND: Pelvic lymphadenectomy for invasive bladder cancer is not a standardized procedure and its relevance for staging and prognoses is still under discussion. A number of retrospective studies have demonstrated a positive correlation between extent of lymphadenectomy and prognosis after radical cystectomy. MATERIALS AND METHODS: In a retrospective study, we correlated the extent of lymphadenectomy with survival after radical cystectomy. Thereafter, we conducted a prospective study to investigate the limits of pelvic lymphadenectomy and the pattern of lymphatic spread. RESULTS: Retrospectively, we found a significantly better survival for patients when 15 and more lymph nodes were removed. The individual surgeon was also evaluated as an important prognostic factor. CONCLUSIONS: Based on retrospective data, an extended and complete pelvic lymphadenectomy improves the prognosis. The cranial border should be at least at the level of the aortic bifurcation. A prospective randomized study will have to clarify the effect of lymphadenectomy on the prognosis of patients after radical cystectomy.

Germany↗
PubMed2004

Extended radical lymphadenectomy in patients with urothelial bladder cancer: results of a prospective multicenter study.

PURPOSE: Previous studies demonstrate a positive correlation between postoperative survival and the extent of pelvic lymphadenectomies in patients with bladder cancer. However, the distribution of nodal metastases has not been examined in sufficient detail. Therefore, we conducted a comprehensive prospective analysis of lymph node metastases to obtain precise knowledge about the pattern of lymphatic tumor spread. MATERIALS AND METHODS: Between 1999 and 2002 we performed 290 radical cystectomies and extended lymphadenectomies. Cranial border of the lymphadenectomy was the level of the inferior mesenteric artery, lateral border was the genitofemoral nerve and caudal border was the pelvic floor. We made every effort to excise and examine microscopically all lymph nodes from 12 well-defined anatomical locations. RESULTS: Mean total number and standard deviation of lymph nodes removed was 43.1 +/- 16.1. Nodal metastases were present in 27.9% of patients. The percentage of metastases at different sites ranged from 14.1% (right obturator nodes) to 2.9% (right paracaval nodes above the aortic bifurcation). By studying cases of unilateral primary tumors or with only 1 metastasis we observed a preferred pattern of metastatic spread. However, there were many exceptions to the rule and we did not identify a well-defined sentinel lymph node. CONCLUSIONS: We strongly recommend extended radical lymphadenectomy to all patients undergoing radical cystectomy for bladder cancer to remove all metastatic tumor deposits completely. The operation can be conducted in routine clinical practice and our data may serve as a guideline for future standardization and quality control of the procedure.

Adult↗
PubMed2003

[Ambulatory vasectomy. Risks and complications].

Vasectomy is the simplest and most effective method of permanent sterilization in men. In most cases, the surgical technique includes conventional vasoresection with incision of the scrotal skin or no-scalpel vasectomy as a minimally invasive method. The most important complications following surgery are haemorrhage and haematoma (1.2%), infection (3.5%), epididymitis/epididymo-orchitis (2.1%), sperm granuloma (2-70%), and chronic pain (3-8%). No long-term negative organic effects have been proven in clinical studies. The surgeon's experience and the technique applied are essential for the postoperative course, whereas performing vasectomy either on an in-patient or out-patient basis does not seem to have an influence. To evaluate the success of the vasectomy, follow-up spermiograms are obligatory. If immotile spermatozoa are present further follow-ups are necessary. Vasectomy needs to be reperformed if motile spermatozoa are detected. The chance of an unsuccessful vasectomy is below 1%. Unprotected intercourse must not be performed before two consecutive spermiograms show azoospermia.

Ambulatory Surgical Procedures↗
PubMed2003

[Ranking of pelvic lymphadenectomy in therapy and prognosis of carcinoma of the bladder].

PURPOSE: Due to the absence of internationally recognised guidelines on the necessary extent of lymphatic node removal in carcinoma of the bladder, we are still not sure as to which procedure is most favourable to therapeutic success. Hence, we checked retrospectively on the influence exercised by radical surgery on prognosis. MATERIAL AND METHOD: 506 patients were analysed retrospectively after radical cystectomy and pelvic lymphadenectomy with regard to the influence exercised on prognosis by clinical and histopathological variables. RESULTS: Statistically significant influential factors in univariate analysis were in the retrospective examination: the pT category (p < 0.0001), lymphatic node status (p < 0.0001), grading (p = 0.0145), proof of uronephrosis (p = 0.0007), number of performed transurethral resections (p = 0.0043), surgeon (p = 0.0033) and number of resected lymph nodes (p = 0.0012). There was a significant difference between surgeons at a median number of 14.3 removed lymphatic nodes (range 1 - 46) in respect of radicality (p = 0.001) and prognosis (p < 0.0049). Independent influential factors in multivariate analysis were: pT category (p = 0.003), pN category (p < 0.001) and the number of surgically removed lymphatic nodes (p = 0.038). CONCLUSION: In our retrospectively examined group of patients extensive lymphadenectomy significantly improved the prognosis and was thus a potentially curative procedure. Basing on these results, prospective studies will have to clarify the level of the standard applicable to pelvic lymphadenectomy and also the advantages and prospects of radical surgery in respect of possible patient survival.

Adult↗
PubMed2002

[Significance of pelvic lymphadenectomy for the prognosis after radical cystectomy].

OBJECTIVE: In contrast to other carcinomas such as breast or colon cancer, there are no guidelines regarding the number and location of lymph nodes to be removed during radical surgery in patients with invasive bladder carcinoma. The therapeutic effect of pelvic lymphadenectomy and its influence on tumour staging has not been documented yet. METHODS: Here we present an evaluation of pelvic lymph nodes from 484 patients who underwent radical cystectomy with curative intention between 1986 and 1999. The number of lymph nodes was correlated with the depth of invasion of the primary tumour, occurrence of nodal metastases, clinical outcome, the operating surgeon, and the pathologist. RESULTS: There were 484 patients with a mean age of 62.7 years. Clinical follow up was available from 321 patients with a mean follow up period of 35.9 months. The average number of lymph nodes removed was 14.3 (range: 1-46). The number of lymph nodes removed varied significantly between different surgeons and did not correlate with the pathologists. There was a significant correlation between the number of lymph nodes removed and the tumour-free survival in pT2 or pT3 tumours and in patients without lymph node metastases. Multivariate analysis revealed that pT-category (p < 0.01), pN-category (p < 0.01), and the total number of lymph nodes removed (p = 0.04) were the most important factors affecting survival. CONCLUSION: The more extensive lymphadenectomy significantly improved the prognosis of patients with invasive bladder cancer and therefore, represents a potentially curative procedure. The results indicate a need for a standardised lymph node dissection.

Adult↗
PubMed2001

Effects of moclobemide on sexual performance and nocturnal erections in psychogenic erectile dysfunction.

RATIONALE AND OBJECTIVES: We tested the hypothesis that the selective reversible MAO-A inhibitor moclobemide has a specific therapeutic effect on erectile dysfunction independent of its antidepressive properties. METHODS: In a double-blind placebo controlled study, 12 male outpatients suffering from psychogenic erectile dysfunction without any other psychiatric disorder were investigated. Based on comprehensive diagnosis before the beginning of the study, organic factors relevant for sexual function were excluded. The treatment period was 8 weeks. Half the patients received 450 mg moclobemide during the first week, and 600 mg afterwards; the others received placebo. Apart from assessment of erectile function by means of the Clinical Global Impression (CGI) scale, nocturnal erections were measured under polysomnographic control at baseline and at the end of the treatment period. RESULTS: The evaluation of the CGI scale revealed a clearly stronger improvement under moclobemide compared to placebo during the study period. The therapeutic efficacy found on the subjective level had no clear correlate on the neurophysiological level. No alterations of nocturnal erectile parameters were obvious under treatment, neither were clinically relevant alterations found regarding sleep EEG parameters. The medication was well tolerated without serious adverse events. CONCLUSIONS: The findings support the hypothesis that moclobemide has a specific effect on erectile dysfunction. Thus, patients suffering from psychogenic erectile dysfunction who are not depressed might benefit from moclobemide without relevant side effects.

Adult↗
PubMed2001

Prognostic significance of histopathological grading and immunoreactivity for p53 and p21/WAF1 in grade 2 pTa transitional cell carcinoma of the urinary bladder.

OBJECTIVE: At present, there are no predictors of tumour behaviour for grade (G) 2 pTa transitional cell carcinomas (TCC) of the bladder. Here we analyse the prognostic relevance of histopathological grading and the immunohistochemical detection of p53 and p21/WAF1. METHODS: 70 patients were newly diagnosed with G2 pTa TCC of the bladder based on transurethral resection specimens. Two pathologists, blinded with respect to the clinical outcome, confirmed the initial grade and subclassified the G2 lesions into G2a and G2b carcinomas based on the degree of nuclear atypia and the number of mitoses. Immunoreactivity for p53 and p21/WAF1 was evaluated semiquantitatively. RESULTS: There were 52 G2a and 18 G2b tumours, mean follow-up was 49.2 months. Of all patients, 31.4% remained tumour-free, 48.6% recurred with the same tumour grade and stage, and 20.0% showed tumour progression. Patients with G2a tumours developed tumour progression in 13% in contrast to 39% with G2b lesions (p = 0.037). Of 21 p53-positive tumours, 33% (7/21) developed progressive disease, whereas 14% (7/49) of p53-negative patients showed tumour progression (p = 0.102). Neither p21/WAF1 expression alone nor the combination of p53 and p21/WAF1 correlated with clinical outcome. CONCLUSION: The more detailed grading system but not p53 or p21/WAF1 immunohistochemistry was found to be an independent prognostic factor for tumour progression.

Carcinoma, Transitional Cell↗
PubMed2001

The pelvic plexus and antireflux surgery: topographical findings and clinical consequences.

PURPOSE: Voiding dysfunction and urinary retention are rare complications of antireflux surgery. As mainly reported after bilateral antireflux surgery with extravesical technique, bladder insufficiency has been suspected to be caused by intraoperative damage to neural structures. We studied the topography of the pelvic plexus and assessed the injury to the plexus resulting from antireflux surgery. MATERIALS AND METHODS: Human cadavers fixed with Thiel solution were used for dissection. The superior hypogastric plexus and hypogastric nerves were identified as the pathway to the pelvic plexus. After dissecting the surrounding fatty tissue the S2 to S4 nerves and efferent nerve bundles from the pelvic plexus were identified. RESULTS: The main portion of the pelvic plexus was located about 1.5 cm. dorsal and medial to the ureterovesical junction. The bundles of the pelvic plexus ended at the distal ureter, trigone and rectum. When simulating an antireflux procedure, there was a high risk of injury to the pelvic plexus and its efferent nerves if dissection was performed distal to the ureter and dorsal trigone. CONCLUSIONS: Careful dissection close to the ureter avoids inadvertent injury to the pelvic plexus. To minimize the risk of voiding dysfunction bilateral antireflux surgery should be performed at 2 sessions unless the operative technique allows preservation of the neural structures.

Aged↗
PubMed2001

Inguinovaginal sling procedure for female stress incontinence: introduction of a minimally invasive technique.

PURPOSE: The inguinovaginal sling procedure is well accepted for surgical treatment of female stress urinary incontinence. Although the functional results are excellent, the operative trauma is higher compared to that of more recently used minimally invasive techniques. MATERIALS AND METHODS: A modified inguinovaginal sling procedure was performed in 15 patients with urodynamically diagnosed intrinsic sphincter deficiency. With the assistance of a laparoscope, two fascial strips were dissected using two small suprapubic skin incisions. The pullthrough maneuver of the fascial slings was facilitated by opening the perivesical space with an inflatable balloon. RESULTS: There were no intraoperative or postoperative complications. Mean follow-up of 7.7 months (range 4 to 11) was available in all patients. Stress incontinence was cured in 14 patients; only one woman reported using one pad per day. All patients were able to void spontaneously after a mean of 8 days (range 6 to 10). CONCLUSIONS: The laparoscopically assisted inguinovaginal sling procedure is less invasive than the original technique. Good long-term results are known from the original inguinovaginal sling procedure, and there is no need for allografts or synthetic material.

Aged↗
PubMed2000

Colon pouch (Mainz pouch III) for continent urinary diversion after pelvic irradiation.

OBJECTIVES: Urinary diversion after previous pelvic irradiation is challenging. The use of irradiated bowel in particular is associated with an increased rate of early and late complications. We therefore performed continent cutaneous urinary diversion using exclusively nonirradiated bowel segments in this group of patients. METHODS: A continent colon pouch for urinary diversion was performed in 44 female patients after pelvic irradiation. The indications were irreparable vesical fistula in 20, local recurrence of gynecologic tumors in 22, and radical cystectomy for bladder cancer in 2 patients. Depending on the length of the nonirradiated bowel segment, a transverse-ascending colon pouch (n = 8) or transverse-descending colon pouch (n = 36) was performed. The efferent segment was created from a tapered bowel segment embedded in the pouch wall. The ureters were implanted using a submucosal (n = 67) or subserosal (n = 17) extramural tunnel. RESULTS: No pouch-related complications were observed during the immediate postoperative period. In long-term follow-up (mean 52.2 months), upper urinary tract dilation was seen in five renal units. All five of these had been dilated preoperatively, and none required ureteral reimplantation. Incontinence occurred in 2 patients; both underwent reoperation with subsequent continence. Umbilical stoma stenosis was observed in 6 patients. CONCLUSIONS: The technique of the colon pouch for continent urinary diversion in previously irradiated patients is safe and has a low complication rate. The use of nonirradiated bowel segments should be the method of choice in this group of patients.

Adult↗
PubMed2000

Vaginal reconstruction using the bladder and/or rectal walls in patients with radiation-induced fistulas.

OBJECTIVE: In irreparable or recurrent vesicovaginal fistulas and cloacal defects following high-dose irradiation therapy for gynecological malignancies, urinary diversion is the last resort to achieve a socially acceptable solution. In a select group of young and tumor-free patients, additional vaginal reconstruction may be indicated. Multiple operative procedures are available, but the results are often disappointing in the previously irradiated area. MATERIALS AND METHODS: In six such patients with large radiogenic vesicovaginal defects (n = 5) or a cloacal fistula (n = 1), a continent reservoir using the transverse colon with an umbilical stoma was performed. At the end of the operation, the bladder was incorporated into a neovagina by incising the urethra, anterior vaginal wall, and the posterior bladder wall with electrocautery from the urethral meatus to the dome of the fistula. RESULTS: No postoperative complications related to the vaginal reconstruction occurred. After a mean follow-up of 4.7 years, all patients had a capacious vagina and a wide introitus; the neovagina measured a mean of 18 cm in length. Five patients with a partner reported a normal sexual life. No dyspareunia or discomfort from bladder or urethral mucosa during intercourse was reported. CONCLUSIONS: Following continent urinary diversion due to irreparable vesicovaginal fistulas, a neovagina can be created by simple dissection of the posterior bladder and anterior vaginal wall. When a colostomy is present, the neovagina can additionally be augmented with a bowel flap of the Hartmann stump or by incising the rectovaginal septum. The technique affords good functional and cosmetic results.

Cloaca↗
PubMed2000

p53 immunoreactivity in biopsy specimens of T1G3 transitional cell carcinoma of the bladder--a helpful parameter in guiding the decision for or against cystectomy?

The aim of this study was to determine whether p53 is helpful in making the decision to undergo cystectomy in T1, G3 transitional cell carcinoma (TCC) of the bladder, by prospectively comparing the p53 status of bladder biopsies with the histology and p53 status of the corresponding cystectomy specimens. From January 1996 to August 1997, 38 consecutive patients with T1G3 TCC at 6 different centres were enrolled into the study. Bladder biopsies and cystectomy specimens were examined with three different antibodies against p53. The p53 status of each bladder biopsy was compared with p53 status, tumour stage and grade of the cystectomy specimen. An independent evaluation of the histology and immunohistochemistry was carried out by two pathologists. 15 of 38 patients (39%) were found to have a higher tumour stage in the cystectomy specimen compared with the staging by transurethral resection of the bladder tumour (TUR-B). 3 patients did not show residual tumour in the cystectomy specimen. No differences in p53 positivity were noted between the different antibodies. 14 of 31 evaluable tumours (45%) were p53 positive at the time of the TUR-B. p53 staining of the TUR-B specimen did not correctly predict the residual tumour in the cystectomy specimen. We, therefore, concluded that compared with standard histopathology, the p53 status of the TUR-B specimen does not provide additional relevant information with regard to local tumour staging and, thus, is not helpful in making the decision for or against a cystectomy.

Adult↗
PubMed2000

Lymphadenectomy in patients with transitional cell carcinoma of the urinary bladder; significance for staging and prognosis.

OBJECTIVE: To determine the need to standardize the number and location of lymph nodes to be removed during radical cystectomy in patients with invasive bladder carcinoma. PATIENTS AND METHODS: The pelvic lymph nodes from 447 patients (mean age 62.8 years) who underwent radical cystectomy between 1986 and 1997 were evaluated. The number of lymph nodes was correlated with the depth of invasion of the primary tumour (pT), occurrence of nodal metastases, clinical outcome, the operating surgeons and the pathologists dissecting the nodes. RESULTS: The clinical follow-up was available for 302 patients (mean follow-up 38.7 months). The mean (range) number of lymph nodes removed was 14.7 (1-46). The number of lymph nodes removed varied significantly among different surgeons but not among pathologists. In pT3 and pT4 tumours, a more extended lymphadenectomy (>/= 16 lymph nodes) correlated with a higher percentage of patients with documented nodal metastases. There was a significant correlation between the number of lymph nodes removed and the tumour-free 5-year survival in patients with pT1, pT2 or pT3 tumours, and in patients with 1-5 positive lymph nodes (P < 0.01). CONCLUSION: Extensive lymphadenectomy significantly improves the prognosis of patients with invasive bladder cancer and represents a potentially curative procedure in patients with nodal metastases, including micrometastases that may escape detection during routine histopathological evaluation. The results indicate the need for a standardized lymph node dissection.

Carcinoma, Transitional Cell↗
PubMed1999

Radical cystoprostatectomy combined with Mainz pouch bladder substitution to the urethra: long-term results.

OBJECTIVE: To analyse, in a retrospective study, the oncological outcome, pouch-related complications, continence and micturition after radical cystoprostatectomy combined with Mainz pouch orthotopic bladder substitution to the urethra for the treatment of bladder cancer. PATIENTS AND METHODS: Between 1986 and 1996, three urological departments contributed 108 male patients to the review. The same exclusion criteria from orthotopic bladder substitution were applied by all centres, i.e. multifocal or concomitant carcinoma in situ, tumour at the bladder neck, positive biopsy from the prostatic urethra, locally advanced tumour and lymph node involvement. In all, 103 patients were evaluable for follow-up, with a mean (range) follow-up of 42 (3-132) months. RESULTS: Pathological examination of the cystectomy specimen revealed 81% organ-confined tumours. During follow-up, 84% of patients remained free of tumour, 7% developed distant metastases, 5% local recurrences, 4% urethral recurrences, and 1% upper tract urothelial cancer; 85% of patients are capable of spontaneous voiding, with a mean pouch capacity of 720 mL. Daytime continence was achieved in 88%, including 17% wearing one safety pad; 9% had stress incontinence and 3% total incontinence; 67% could sleep through the night, with either complete continence (34%) or one safety pad (33%). Nocturnal incontinence occurred in 11%. Uretero-intestinal stenosis occurred in 15 of 205 (7%) renal units, requiring ureteric reimplantations in 11, nephrectomy in three and antegrade dilatation in one. Reflux was not noted in any patient. About half the patients were on anti-acidotic prophylaxis. CONCLUSION: The large bowel segment in the Mainz-pouch technique of orthotopic bladder substitution provides good reservoir capacity and continence rates, with less ileum used than in all-ileum pouches. The surgical technique is simple and reproducible, and in particular the antireflux ureteric implantation into the caecum protects the upper urinary tracts.

Adult↗
PubMed1998

Lack of efficacy of recombinant human interleukin-6 in patients with advanced renal cell cancer: results of a phase II study.

The present phase II study was undertaken to assess antitumoral activity, safety and tolerability of recombinant human interleukin-6 (rh IL-6) in patients with advanced renal cell cancer. Rh IL-6 was administered as a daily subcutaneous injection at a fixed dose of 150 micrograms/day for a maximum of 42 consecutive days. 12 patients with metastatic renal cell cancer without previous immunotherapy were enrolled and were evaluated for response. No objective clinical responses were observed in the trial. Toxicity was moderate and reversible and mainly comprised fever, influenza-like symptoms, fatigue and moderate hepatotoxicity. Anaemia, leucocytosis, thrombocytosis and induction of an acute phase response were observed in most patients. In conclusion, prolonged subcutaneous administration of rh IL-6 on an outpatient basis is safe and feasible. However, rh IL-6 exhibited no antitumoral activity in patients with metastastic renal cell cancer. Profound regulatory effects on haematopoiesis and inflammatory response of rh IL-6 were observed.

Adult↗
PubMed1996

[Infarct of the lower renal artery segment: diagnosis with CT-angiography and 3-dimensional spatial representation].

The case of a CT-angiographically diagnosed partial renal infarction is presented. The infarction was diagnosed during a postoperative CT-control of the arteries after implantation of an aorto-biliac dacron graft. Reformatting of the axial spiral scans data was elaborated with surface rendering, maximum intensity projection, and volume rendering for comparison. Each of the reformatting modalities was able to re-present the renal infarction, elaboration time is short and a clear presentation of the spatial relationship can be obtained.

Angiography↗