Biomedical subjects

Xavier Cathelineau

Publications and source records attributed to Xavier Cathelineau.

25 records · Page 2Linked to original sources

PubMed2003

Initial results of salvage laparoscopic radical prostatectomy after radiation failure.

PURPOSE: We evaluated the feasibility of laparoscopic radical prostatectomy for recurrence after irradiation. MATERIALS AND METHODS: Since 2000, 7 patients with biological failure after irradiation (5 external beam radiation and 2 brachytherapy), and no metastasis on computerized tomography and bone scan underwent a transperitoneal laparoscopic radical prostatectomy according to the Montsouris technique. The left index finger was placed in the rectum to control the prostatorectal dissection. We call this procedure "finger assisted laparoscopy." RESULTS: Average operating time was 190 minutes (range 170 to 210), average blood loss was 387 cc (range 50 to 1,100) and no patient was transfused. Bladder catheter was removed after an average of 13 days because of the slower tissue healing after irradiation. No death or intraoperative complication occurred. There was no conversion to open surgery. Average postoperative stay was 6.4 days. Average followup was 11.2 months. Of the 7 patients 5 are continent (no pad day or night) and 2 have stress incontinence. All patients are impotent. No patient had urethral stenosis or lymphocele. Prostate specific antigen is lower than 0.1 ng/ml in 5 patients and higher in 2. CONCLUSIONS: Laparoscopic salvage radical prostatectomy after irradiation is feasible with no more morbidity than an open procedure. A longer followup is mandatory to evaluate its usefulness.

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PubMed2003

Intraoperative frozen section analysis during nerve sparing laparoscopic radical prostatectomy: feasibility study.

PURPOSE: Nerve sparing radical prostatectomy may allow preservation of potency but it can increase positive surgical margins. We used intraoperative frozen section (IFS) analysis to monitor the nerve sparing procedure in laparoscopic prostatectomy. MATERIALS AND METHODS: A total of 100 patients with localized prostatic carcinoma underwent bilateral intrafascial nerve sparing laparoscopic prostatectomy with IFS. A wedge of tissue was cut from base to apex in the region of the neurovascular bundles (NVBs) and analyzed on frozen section. If carcinoma was detected at the inked margin, the corresponding NVB was resected. Definitive margin status was evaluated after permanent section analysis of IFS prostatectomy specimens and eventually NVB specimens. RESULTS: IFS analysis was positive in 24 patients, as confirmed in all by permanent section of the wedges. Three of these patients had positive margins in the prostate specimen at another site. Of the 76 tumors with negative IFSs 1 had positive margins on permanent sections of the wedges and 8 had positive margins on the prostate specimen at another site. IFS led to a decrease in the overall positive margin status from 33% to 12% and from 26.1% to 7.9% in pT2 tumors. Tumor was found on NVB resection in 8 cases (33%). CONCLUSIONS: These results suggest that IFS analysis is a reliable method by which to monitor nerve sparing during laparoscopic prostatectomy. IFS could allow the surgeon to offer a nerve sparing procedure more frequently without compromising cancer control.

Erectile Dysfunction↗

PubMed2002

Cystectomy with prostate sparing for bladder cancer in 100 patients: 10-year experience.

PURPOSE: To minimize the risk of incontinence and impotence without compromising oncological outcome, we performed prostate sparing surgery during radical cystectomy for bladder cancer. MATERIALS AND METHODS: Since 1992, 100 patients with a mean age of 64 years (range 48 to 82) underwent cystectomy for bladder transitional cell carcinoma with prostate sparing based on normal digital rectal examination of the prostate, normal prostate specific antigen (PSA), percent free PSA greater than 15 and normal transrectal ultrasound of the prostate. Prostate biopsies to exclude prostate cancer were performed on patients with an abnormal digital rectal examination, high PSA, percent free PSA less than 15 or hypoechoic lesions on ultrasound. Surgery consisted of transurethral resection of the prostate with analysis of frozen section of the prostatic urethra and transitional prostate and cystectomy with reconstruction by a Z ileal bladder anastomosed to the prostatic capsule after confirmation of the absence of prostate or bladder cancer on frozen sections of the surgical capsule specimens. Patients were followed closely with imaging and laboratory studies every 6 months and annually for 3 years thereafter. RESULTS: Perioperative death occurred in 1 patient due to septicemia, 20 patients (20%) died of cancer and 6 (6%) died of nonrelated cancer causes. Mean followup 38 months (range 2 to 111). Postoperative pathological stage was PT0 in 2 cases, PtaT1 in 22, PT2 in 48, PT 3 in 28 and N+ in 13. The 5-year actuarial global survival according to pathological stage was pTaT1N0 in 96% of cases, pT2N0 in 83%, pT3N0 in 71% and N+ in 54% (p = 0.0001). The 5-year actuarial cancer specific survival was PT0, Ta T1 in 90% of cases, PT2 in 73%, PT3 in 63% and N- in 8%. The cancer specific survival according to pathological grade was 100% for well differentiated tumors (grade I), 76% for moderately differentiated tumors (grade II) and 47% for poorly differentiated tumors (grade III) (p = 0.003). Local recurrence was pTaT1N0 in 1 of 22 cases (4.5%), pT2N0 in 2 of 40 (5%), pT3N0 in 2 of 23 (8.5%) and N+ in 0 of 13 (0%). Prostate cancer was diagnosed in 3 patients (2 errors in the diagnosis and 1 cancer de novo within 5 years of followup). At 1-year followup 86 of 88 patients (97%) are fully continent (no pad) during the day, and 84 (95%) void 1 to 2 times a night to stay dry. Of 61 patients with previously adequate sexual function 50 (82%) maintained potency with retrograde ejaculation secondary to transurethral resection, 6 (10%) have partial potency and 5 (8.1%) are impotent. CONCLUSIONS: Cystectomy with prostate sparing for bladder cancer is feasible and offers promising functional results with no additional oncological risk. Careful selection of patients is mandatory.

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PubMed2002

Laparoscopic radical prostatectomy: assessment after 550 procedures.

PURPOSE: To evaluate our experience in laparoscopic radical prostatectomy. MATERIALS AND METHODS: Between January 1998 and December 2000, 550 consecutive patients eligible for radical prostatectomy, were operated laparoscopically. Data concerning surgery and post-operative course were assessed and recorded. Oncological data were assessed by pathological examination and post-operative PSA level. Functional results were assessed with a self-questionnaire. RESULTS: The mean operating time was 170 min for the last 350 patients. Surgical conversion was necessary in seven patients (1.3%). Mean intra-operative bleeding was 290 ml (range: 50-1500 ml) for the last 350 patients. The overall transfusion rate was 5.27%. Mean bladder catheterization time was 4.2 days and median postoperative stay was 5 days in the last 350 patients. By pathological stage, 4 pT2a specimens (3.3%), 48 pT2b specimens (15%), 21 pT3a specimens (33%), 19 pT3b specimens (47%) were found to have positive surgical margins. For pT2a and pT2b stages, non-biological recurrence probability (PSA<0.1 ng/ml) is, respectively, 92.3% at 36 months, and 86.3% at 31 months. The continence rate (no pad) was 82.3% at 12 months among the 255 first patients. For 47 consecutive selected patients, spontaneous erection rate was 85 and 66% experienced spontaneous intercourse. CONCLUSIONS: Laparoscopic radical prostatectomy is currently feasible, with low perioperative morbidity. Taking into account the postoperative follow-up, oncological results are identical to those obtained with conventional surgery. The functional results are encouraging.

Humans↗

PubMed2002

Perioperative complications of laparoscopic radical prostatectomy: the Montsouris 3-year experience.

PURPOSE: We prospectively evaluated the morbidity, and minor and major complications of laparoscopic radical prostatectomy performed by a single surgical team. MATERIALS AND METHODS: Between January 28, 1998 and February 28, 2001, 567 patients 42 to 77 years old (mean age plus or minus standard deviation 63.5 +/- 6) with clinically localized prostate cancer underwent laparoscopic radical prostatectomy, including 458 (80.6%), without lymphadenectomy. Mean body mass index was 25.3 +/- 2.9 (range 17.3 to 37.5). American Society of Anesthesiologists score was 1 to 3 in 65%, 27% and 8% of cases, respectively. A total of 12 patients (2.1%) had undergone intra-abdominal surgery below the mesocolon and 40 had undergone urological surgery. Intraoperative and postoperative data were recorded as well as all complications and their severity score within the initial 30 days postoperatively. RESULTS: A total of 105 complications were observed in 97 patients (17.1%), including 21 major (3.7%) and 83 minor (14.6%) complications. Of the patients 21 (3.7%) underwent reoperation for a postoperative complication, including 10 (1.76%) who required an intensive care unit stay. Seven cases (1.2%) were converted to conventional retropubic radical prostatectomy. Mean blood loss was 380 +/- 195 ml. and the overall transfusion rate was 4.9%. In 2 patients (0.3%) deep vein thrombosis was associated with another surgical complication but not with pulmonary embolism. Urological, bowel and hemorrhagic complications represented 66.6%, 16.2% and 7.6% (total 89.4%) of all complications, and 20%, 33.3% and 33.3% of all repeat interventions, respectively. CONCLUSIONS: Laparoscopic radical prostatectomy was performed according to the defined protocol with no complications in 82.9% of patients. The morbidity of this approach compares favorably with that of retropubic surgery. Growing experience and knowledge sharing concerning the prevention and early management of these complications would make possible a further decrease in the morbidity of laparoscopic radical prostatectomy.

Adult↗

PubMed2002

[Localized prostatic cancer: treatment with laparoscopic radical prostatectomy: study with 841 cases].

The authors present their experience in the technique of laparoscopic radical prostatectomy. After 841 operations done from January 1998 to april 2001. They use a trans peritoneal approach with 5 ports of 5 and 10 mm. The prostatectomy is done antegrady and the urethrovesical anastomosis is rebuilt with interrupted 3/0 resorbable sutures. Operating time is 2 hours and 40 minutes (1 h 30 to 6 h 30) Conversion rate is 0.9%, average bleeding is 330 cc and transfusion rate is 2.8%. Bladder catheter is removed between days 3 to 6. hospital stay is 5.8 days. Post-op pain is minimal (2% of antalgics at day 2). There was no death, no embolism, 0.2% of phlebitis, 1.1% of rectal injury. Anstomotic strictures occur in 0.3% of cases. 89.2% of patients are continent after 1 year and 75% of patients under 70 years old who underwent a bilateral nerve sparing procedure were potent at 6 months. Positive margins were observed in 5% of pT2a, 22.5% of pT2b, 22.7% in pT3a and 30% in PT3b. After 2 years 92.5% of patients pT2a and b have a PSA < 0.1 ng/ml. No port seeding or peritoneal invasion by cancer was observed. Laparoscopic radical prostatectomy is a safe surgical procedure which limits the risk of transfusion, of anastomotic stricture, which reduces post op pain and allows a good continence. Potency recovery is promising.

Humans↗

PubMedDate not supplied

Transrectal high-intensity focused ultrasound in the treatment of localized prostate cancer.

The literature concerning the efficacy and safety of transrectal high-intensity focused ultrasound (HIFU) for the treatment of localized prostate cancer still comprises a relatively small number of articles. The main studies have been published by four teams using an apparatus available in Europe for several years. The recently presented results of the European Multicentre Study and the study by Gelet and associates based on 242 patients with a follow-up of more than 1 year show that HIFU is a valid alternative for the management of welldifferentiated and moderately differentiated localized prostate cancer with an initial PSA </=15 ng/mL in men with a life expectancy >10 years. In two studies, the combination of transurethral resection of the prostate and HIFU limited the risk of postoperative urinary retention without inducing a higher complication rate. In a series of patients presenting recurrence after external-beam radiotherapy, HIFU was found to be a useful therapy, with >80% negative biopsies. The best indications for HIFU are men over the age of 65, those who are not candidates for radical prostatectomy, obese patients, or patients with comorbidities likely to make surgery more difficult. The learning curve for this technique is relatively short, between 10 and 15 patients, for urologists experienced in transrectal ultrasonography. One of the advantages of HIFU is that it can be repeated in the case of recurrence or to re-treat a prostatic site, it involves no radiation, and patients do not suffer from long-term irritative urinary symptoms.

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