The genetics of Alzheimer disease: current status and future prospects

BACKGROUND: Laparoscopic hysterectomy and lymph node dissection have lately been reported as an alternative to an abdominal open procedure for the treatment of malignant gynaecological conditions. The laparoscopic operative technique has been evaluated and compared as to whether it is a safe, feasible and effective procedure. SUBJECTS: The study includes 78 women with indications for surgery for endometrial cancer stage I. A retrospective comparative study was undertaken at Baby Friendly Hospital, Kladno, in which 11 patients treated laparoscopically were compared with 26 patients treated by the open procedure of lymphadenectomy. We evaluated differences in the peri-and postoperative outcomes. RESULTS: All 11 procedures were successfully completed. The mean operating time was 153 min, and mean blood loss was 130 ml. The median hospital stay was 4.7 days. There were no major complications. CONCLUSIONS: Laparoscopic hysterectomy and lymphadenectomy seem to be the procedures which result in a shorter hospital stay and rapid recovery. This approach could potentially decrease morbidity historically associated with hysterectomy and lymphadenectomy performed abdominally. Only prospective randomised studies will be able to demonstrate the ability of operative laparoscopy to improve contemporary management of endometrial cancer.     

Results of postoperative radiotherapy of cervix carcinoma after radical versus non radical hysterectomy

We studied the outcome of our 68 cervix carcinoma patients treated either with: 1) radical surgery and postoperative 192Ir high-dose rate afterloading brachytherapy or postoperative radiotherapy to the whole pelvis or with 2) standard hysterectomy and postoperative radiotherapy to the whole pelvis. Forty-eight women were treated by radical hysterectomy from 1988 to 1992 and--due to risk factors--by postoperative radiotherapy (Group 1), 20 other patients (Group 2) pretreated with standard hysterectomy were admitted to the university hospital for postoperative radiotherapy of the whole pelvis. Postoperative radiotherapy consisted of 39.6 Gy total dose using the box technique, plus two afterloading applications with a single dose of 7.5 Gy and 6 Gy external beam therapy to the pelvic lymph nodes sparing the midline. Comparing the Kaplan-Meier plots of both groups, the tumor related survival curve, the locoregional control and the rates of metastatic disease were nearly identical. But in the analysis of special subgroups, patients with positive lymph nodes after standard hysterectomy and postoperative radiotherapy had a worse prognosis (75% three years' survival rate) than patients after radical surgery (86% three years' survival rate). Lymphangiosis was a negative prognostic factor for the patients pretreated with standard hysterectomy (60% versus 80% three years' survival rate), but not for patients after radical surgery (80% three years' survival rate), despite the same radiotherapy in both groups. CONCLUSION: Standard hysterectomy fails to be an adequate treatment for early cervix carcinoma because moderately dosed postoperative radiotherapy cannot achieve complete locoregional control in all cases of positive lymph nodes or invasion of lymph vessels. However, based on the empirical results of many authors and our own results, postoperative radiotherapy is further indicated in high risk cases of cervix carcinoma after radical surgery.     

Laparoscopic colonic resection

We present our initial experience with laparoscopic colonic resection in 15 patients: adenocarcinoma of the colon, 10 cases, giant villous adenoma (2), arteriovenous malformation (2), and a case of benign stricture. Mean operating time was 190 minutes and there were no intraoperative complications. The margins of resection and number of resected lymph nodes in patients with malignancy were comparable to those in the conventionally operated. Mean postoperative hospital stay was 6.1 days. During a maximum follow-up of 15 months there were no wound or trocar-site recurrences. We conclude that laparoscopic colonic resection is technically feasible and safe. However, its use for treating malignant diseases of the colon needs further study.     

Indications for laparoscopic surgery in cases of gynecological malignancies (endometrial cancer)

The role of surgery in the treatment of patients with invasive cervical cancer is undisputed, but how radical surgery should be is debatable. Every case requires detailed knowledge of the development and spread of cervical cancer. Tumor volume is the most important diagnostic factor in cervical cancer and also correlates with vascular invasion and lymph node involvement. As radical hysterectomy requires in cervical cancer besides the laparoscopically easy performable lymphadenectomy also the resection of parametria with sceletonisation of ureters we started to treat endometrial cancer with a combined laparoscopic and vaginal approach. In patients with the suspicion of stage I endometrial cancer prior to laparoscopic staging, the prerequisites of histological grading with ploidy and measurement of monoclonal antibodies were performed. All patients underwent a general check with radiography, computer tomography, liver scan, bone scan and lymphography. The performance of lymphadenectomy in cases of stage I endometrial cancer remains a controversial subject. We believe that laparoscopic assisted surgical staging of stage I endometrial cancer is an attractive alternative to the traditional laparotomy-surgical approach. The change from laparotomy to a laparoscopic assisted vaginal approach allows for a similar success rate with the less invasive approach. No complications occurred in this series and the results of our pilot study were satisfactory.     

Laparoscopic pelvic lymph node dissection for clinical staging of prostate cancer: encouraging preliminary results

OBJECTIVE: To evaluate the results of the first 72 laparoscopic pelvic lymph node dissections in patients with prostate cancer. DESIGN: Retrospective study of records. SETTING: Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands. METHOD: A retrospective study of records provided data on 72 patients with prostate cancer staged by laparoscopic lymph node dissection in the period 1993-1997. Per- and postoperative complications, operation time, number of removed lymph nodes, pathology result and duration of hospital stay were assessed. A comparison was made between the first series of 36 patients and the second series. RESULTS: In 9 patients the laparoscopic approach was converted to a laparotomy. This occurred six times in the first series of 36 patients and three times in the second series. The postoperative course was complicated six times in the first and four times in the second series. With increasing experience the mean operation time decreased from 140 min to 114 min in the second series (p < 0.0001). The mean number of nodes removed was equal in both series (7.5). Lymph node metastases were found in 20 patients (28%). Hospital stay was 2.9 days in the first series and 2.2 days in the second series (not significant). CONCLUSION: Laparoscopic pelvic lymph node dissection is a minimally invasive method for staging patients with prostate cancer. This staging procedure is of great benefit in patients scheduled for treatment with curative intent because of its accuracy and low morbidity. With increasing experience operation time, hospital stay and number of complications decrease.     

Successful peer review of courses: a case study

PURPOSE: In patients with early cervix carcinoma, both radiotherapy and surgery or combined modalities provide effective therapies. In the two last modalities, recommended surgery is radical hysterectomy. The purpose of this prospective study was to assess the value of a limited vaginal hysterectomy after brachytherapy in patients without any unfavorable prognostic factor. PATIENTS AND METHODS: Twenty-two patients (stage Ia2 with vascular invasion: three patients, stage Ib 1:19 patients) with 1 cm median maximal tumor size and with previous negative laparoscopic lymphadenectomy (median number of lymph nodes: 12) underwent a limited vaginal hysterectomy 6 weeks after utero-vaginal brachytherapy. RESULTS: Two mild intra-operative complications were noted. Venous hemorrhage (100 mL) occurred in one patient during lymphadenectomy and another patient presented bladder injury during hysterectomy. These two complications were successfully controlled with no need for laparotomy. Only one late complication was observed: bladder grade G2 (b). With a 29 months follow-up (20-48 months), no recurrence was reported. CONCLUSION: These results appear promising in patients with very early cervix carcinoma but remain to be confirmed on a larger scale.     

Laparoscopic retroperitoneal lymphadenectomy after chemotherapy for stage IIB nonseminomatous testicular carcinoma

PURPOSE: We investigated laparoscopic retroperitoneal lymphadenectomy after chemotherapy for stage IIB testicular carcinoma in terms of operative feasibility, overall morbidity and tumor control. MATERIALS AND METHODS: Between February 1995 and April 1998, 24 patients underwent laparoscopic retroperitoneal lymphadenectomy following initial chemotherapy for stage IIB (2 to 5 cm.) solitary or unilateral lymph node metastases. Mean tumor diameter was 2.4 cm. before and 1.1 cm. after chemotherapy. Laparoscopic retroperitoneal lymphadenectomy was performed in all patients, including those with complete remission. RESULTS: Laparoscopic retroperitoneal lymphadenectomy could be completed as planned in all patients and there was no need for conversion to open surgery. Operative time was 150 to 300 minutes (mean 240). Blood loss was minimal and no blood transfusions were required. The only postoperative complications were chylous ascites (5 patients) which resolved with conservative management (low fat diet) and a small asymptomatic lymphocele. Histological examination revealed necrosis in 71%, mature teratoma in 25% and active tumor in 4% of patients. Antegrade ejaculation was preserved in all patients. Mean postoperative hospital stay was 4 days, return to normal activities between 1 and 3 weeks, and time to complete recovery between 5 and 10 weeks. All patients were well without evidence of disease at a mean followup of 24.4 months. CONCLUSIONS: Laparoscopic retroperitoneal lymphadenectomy after chemotherapy proved feasible in select patients presenting with solitary or unilateral lymph node metastases and was associated with a low morbidity. Tumor control was not compromised by the laparoscopic approach.     

Pancreatic duct antibodies and subclinical insufficiency of the exocrine pancreas in Sj?gren''s syndrome]

AIM: To investigate prognostic factors and complications after radical hysterectomy followed by postoperative radiotherapy for carcinoma of the uterine cervix. PATIENTS AND METHODS: One hundred twenty-eight patients with T1b-2b carcinoma of the uterine cervix following radical hysterectomy with bilateral pelvic lymphadenectomy and postoperative radiation therapy were reviewed. Pathologic and treatment variables were assessed by multivariate analysis for local recurrence, distant metastases and cause specific survival. RESULTS: The number of positive nodes (PN) in the pelvis was the strongest predictor of pelvic recurrence and distant metastases. These 2 failure patterns independently affect the cause specific survival. The 5-year cumulative local and distant failure were PN(0): 2% and 12%, PN(1-2): 23% and 25%, PN(2 <): 32% and 57%, respectively (p = 0.0029 and p = 0.0051). The 5-year cause specific survival rates were PN(0): 90%, PN(1-2): 59% and PN(2 <): 42% (p = 0.0001). The most common complication was lymphedema of the foot experienced by one-half of the patients (5-year: 42%, 10-year: 49%). CONCLUSION: These results suggest that patients with pathologic T1b-T2b cervix cancer with pelvic lymph node metastases are at high risk of recurrence or metastases after radical hysterectomy with pelvic lymphadenectomy and postoperative irradiation.     

Cigarette smoking increases sympathetic outflow in humans

OBJECTIVE: To describe a detailed operative procedure for type III laparoscopic radical hysterectomy with bilateral low paraaortic, subaortic and pelvic lymphadenectomy. STUDY DESIGN: Between January 1992 and December 1995, eight patients with cervical carcinoma IA2 or IB1 underwent laparoscopic radical hysterectomy at China Medical College Hospital, Taichung, Taiwan, R.O.C. The procedure of laparoscopic radical hysterectomy was separated into eight segmental steps. RESULTS: No major complications, including ureteral injury and lymphocyst formation, were noted in any case. Mean hospitalization was 6.5 days. The follow-up period ranged from 16 to 62 months. Only one case recurred, in the lung. CONCLUSION: Laparoscopic radical hysterectomy is a safe procedure. A complete pelvic and paraaortic lymphadenectomy and type III radical hysterectomy can be performed laparoscopically. This approach allows shorter hospitalization and carries less morbidity than the open type. Short-term follow-up (1.3-5.1 years) indicated a favorable prognosis.     

Severe lumbar lordosis after dorsal rhizotomy

The purpose of this study is to compare the safety, efficacy, and potential benefits of vaginal radical hysterectomy (VRH) versus abdominal radical hysterectomy (ARH) in the treatment of early-stage cervical cancer. We reviewed the charts of our first 52 patients with cervical cancer. We reviewed the charts of our first 52 patients with cervical cancer who underwent a laparoscopic pelvic lymphadenectomy (LPL), followed either by a VRH (Schauta) in 25 cases or ARH in 27 cases. For the 52 patients, the mean lymph nodes count obtained by LPL was 27 (range 8-59), and the only complication was an external iliac vein trauma requiring laparotomy. Both VRH and ARH groups were comparable in terms of age, weight, parity, stage, histology, and tumor volume. The mean blood loss was 400 cc for VRH vs 450 cc for ARH, operating time was 270 min vs 280 min, blood transfusion in 5 vs 4 women, and postoperative stay was 7 days for both groups. The only intraoperative complication in addition to the vein trauma was a cystotomy which occurred in 2 VRH patients. Febrile morbidity was noted in 4 VRH patients vs 9 ARH patients. There were one preperitoneal abscess and one hematoma in the VRH group vs 4 wound infections and 1 hematoma after ARH. Ileus occurred in 1 VRH vs 4 ARH patients. The current mean follow-up time is 27 months (8-52) and there has been one recurrence so far in the ARH group. Even though this is a retrospective study, our data indicate that VRH and ARH are comparable, except for the absence of an abdominal scar and less febrile morbidity with the vaginal approach. However, in our opinion, the main advantage in learning the Schauta operation is that the experience gained allows one to offer radical trachelectomy to selected young patients who wish to preserve their fertility.