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Biomedical subjects

H Manhes

Publications and source records attributed to H Manhes.

At least 19 recordsLinked to original sources

5-aminolevulinic acid-induced (ALA) fluorescence for the laparoscopic diagnosis of peritoneal metastasis. AST An experimental study.

BACKGROUND: We performed a randomized experimental study in a rat model to evaluate the use of 5-aminolevulinic acid-induced (ALA) fluorescence in the laparoscopic diagnosis of peritoneal metastases of ovarian cancer. METHODS: We injected 103 ovarian adenocarcinoma cells in the peritoneum of 31 rats. One week later, 5-aminolevulinic acid was injected in the peritoneum (100 mg/kg). After 3 h, we examined the rats using a 10-mm endoscope with a mono CCD camera and a light source developed for photodynamic diagnosis. Metastases on the parietal peritoneum were evaluated independently by two surgeons randomly assigned to use either a conventional light mode or the fluorescence mode. RESULTS: The mean number of metastases detected was 2.84 with conventional laparoscopic light and 5.74 with ALA-induced fluorescence (p < 0.0008). Metastases diagnosed by fluorescence were confirmed by pathologic examination. Random peritoneal biopsy specimens taken from nonfluorescent areas were negative. CONCLUSION: In this experiment, ALA-induced fluorescence improved the detection of peritoneal metastases of ovarian cancer.

Adenocarcinoma↗

[Management of adnexal tumors: role and risks of laparoscopy].

The laparoscopic management of adnexal tumeurs remains controversial because of the potentials risks of cancer dissemination suggested by many case reports and national surveys. From experimental data, the laparoscopic treatment of gynecologic cancer has potential advantages and disadvantages. The risk of dissemination appears high when a large number of malignant cells are present so that adnexal tumors with external vegetations, and bulky lymph nodes may be considered as contra-indications to CO2 laparoscopy. Laparoscopic surgery has become the gold standard in the treatment of benign adnexal tumeurs, whereas laparotomy remains the standard for the treatment of malignant tumors. The surgical diagnosis is the key to adequate management of adnexal tumeurs. In our experience, after a careful preoperative evaluation, the laparoscopic diagnosis of malignancy is reliable. Moreover in national surveys, many malignant tumeurs were considered as benign despite suspicious laparoscopic findings. Using strict guidelines, laparoscopic diagnosis can be proposed for both non suspicious and complex tumeurs, thus avoiding many unnecessary laparotomies for benign tumeurs suspicious at ultrasound. The more controversial limits of laparoscopic treatment are discussed. If a laparotomy was performed for all tumeurs suspicious at surgery, 80% of the cases would be treated by laparoscopy. The role of laparoscopy for restaging and second look operations for ovarian cancer requires further evaluation.

Adnexal Diseases↗

[Prevention of peritoneal adhesions].

Peritoneal adhesions are a major problem for health and economy. An adequate and atraumatic surgical technique is essential in the prevention of peritoneal adhesions. Laparoscopic microsurgery should be developed and promoted. The following conclusions can be proposed about the treatments available Adequately designed clinical studies are too rare. Future studies are necessary to obtain information on pregnancy and pain as primary outcomes. Cost implications of adhesion prevention treatments also have to be addressed.

Animals↗

Cancer and laparoscopy, experimental studies: a review.

OBJECTIVE: To review the experimental studies on laparoscopy and cancer and to propose guidelines for the clinical management of gynecologic cancer. METHODS: The literature in MEDLINE was searched from January 1992 to December 1998 using the terms 'cancer', 'laparoscopy' and 'experimental or animal study'. Cross-referencing identified additional publications. Abstracts and letters to the editor were excluded. All the relevant papers were reviewed. RESULTS: Depending on the model used, controversial results have been reported on the incidence of trocar site metastasis when comparing CO(2) laparoscopy and laparotomy. In contrast, the following conclusions can be proposed: (i) tumour growth after laparotomy is greater than after endoscopy; (ii) tumour dissemination is worse after CO(2) laparoscopy than after laparotomy; (iii) some of the disadvantages of CO(2) laparoscopy may be treated using local or intravenous treatments or avoided using other endoscopic exposure methods, such as gasless laparoscopy. CONCLUSIONS: The laparoscopic treatment of gynecologic cancer has potential advantages and disadvantages, and may only be performed in prospective clinical trials. The risk of dissemination appears high when a large number of malignant cells are present. Adnexal tumours with external vegetations, and bulky lymph nodes should be considered as contra-indications to CO(2) laparoscopy.

Animals↗

[Surgical management of adnexal tumors].

Concerning laparoscopy and tumor dissemination, we know from several multivariate analyses that at laparotomy, if the tumor is entirely and immediately removed, the puncture of a stage I ovarian cancer has no influence on the prognosis. In contrast the inadequate surgical management of an undiagnosed ovarian cancer may worsen the prognosis. The diagnosis is the key step. To be able to immediately and completely treat an ovarian cancer when managing an ovarian tumor surgically, Laparoscopic diagnosis is safe and reliable when used cautiously. The surgical diagnosis may and should probably be performed by laparoscopy whatever the ultrasonographic appearance of the tumor. Masses diagnosed as suspicious at surgery should be treated by immediate laparotomy, since the results of laparoscopic treatment of an ovarian cancer are not known. In young patients, conservative surgery is the main advantage of laparoscopy, and should be achieved in most benign masses. The recent progresses of in vitro fertilization should be taken into account when managing an ovarian tumor in a patient who wishes to become pregnant. Frozen sections are useful, when treating highly suspicious masses, allowing an immediate staging and avoiding the disadvantages of a second surgical procedure. Whenever a malignant tumor has been missed at laparoscopy, restaging is required and should be considered to be an oncologic emergency.

Adult↗

Laparoscopic management of adnexal masses suspicious at ultrasound.

OBJECTIVE: To evaluate the laparoscopic management of adnexal masses suspicious at ultrasound. METHODS: In a prospective study, adnexal masses suspicious at ultrasound were managed by laparoscopy. Indications for laparotomy included general contraindications to laparoscopy, obviously disseminated ovarian cancer, and technically impossible laparoscopic treatment. After laparoscopic diagnosis, frozen sections were used to confirm a diagnosis of malignancy. Treatment was performed by laparoscopy whenever feasible. RESULTS: Over a 3-year period, 247 of the 599 adnexal masses (41.2%) treated in our department were suspicious or solid at ultrasound. Seventeen patients were evaluated by laparotomy and 230 by laparoscopy. Overall, 204 women (82.6%) were treated by laparoscopy, including seven of the 37 malignant tumors (18.9%) and 197 of the 210 benign masses (93.8%). One case of tumor dissemination occurred after a laparoscopic adnexectomy and morcellation of a grade 1 immature teratoma. CONCLUSION: Laparoscopic diagnosis of adnexal masses suspicious at ultrasound avoids many laparotomies for the treatment of benign masses and allows an improved inspection of the upper abdomen. The laparoscopic treatment of adnexal masses suspicious at surgery should be evaluated further in carefully designed prospective studies.

Adnexal Diseases↗

[Operative laparoscopy and the adnexal cystic mass: where to set the limit?].

OBJECTIVE: To study the importance and the consequences of several managements options for adnexal cystic masses suspicious at ultrasound and/or at laparoscopy. MATERIAL AND METHODS: The importance of this question was evaluated by studying the correlation between the ultrasonographic appearance, the macroscopic diagnosis and the pathologic diagnosis in a series of 1098 patients operated over a 14-year period. The laparotomy rates obtained with the managements proposed were calculated by adding the laparotomies which would be performed because of the suspicious appearance to the laparotomies effectively performed in the department when treating the non suspicious masses. RESULTS: 32 of the 323 suspicious cases at ultrasound were malignant. The negative predictive value of the laparoscopic diagnosis of malignancy was 100%. Depending on the management used, the incidence of laparotomy could have varied from 6.1% to 31.3% between 1987 and 1991, and from 12.9% to 41.9% between 1992 and 1993. These results were related to preoperative selection. CONCLUSION: Using a simple management which includes diagnostic laparoscopy for masses suspicious at ultrasound and laparotomy for masses suspicious at laparoscopy, 80.1% of the patients would be treated by laparoscopic. This management seems reasonable until the long term results of large series about the laparoscopic treatment of ovarian cancer become available.

Adnexal Diseases↗

Infertility due to diseased pelvic peritoneum: laparoscopic treatment.

Thirty-one patients complaining of unexplained infertility for at least 36 months and diagnosed elsewhere were reassessed laparoscopically. After staining their pelvic peritoneum with concentrated methylene blue, they presented with extensive areas of dark blue discoloration, and were diagnosed as suffering from 'diseased pelvic peritoneum'. The levels of peritoneal CA 125 were assessed. At the end of the diagnostic procedure, bipolar electrocoagulation or defocalized laser beam therapy was performed to destroy the affected peritoneal areas, and to allow peritoneal regeneration. Twenty-five pregnancies were obtained following this treatment. A detailed description is given of the diagnosis and treatment procedures.

Adult↗

Laparoscopic diagnosis of adnexal cystic masses: a 12-year experience with long-term follow-up.

OBJECTIVE: To study the value and the immediate and long-term consequences of the laparoscopic diagnosis of adnexal cystic masses. METHODS: We studied all patients who underwent laparoscopy for an adnexal cystic mass at the Department of Obstetrics, Gynecology, and Reproductive Medicine of the Clermont-Ferrand University Hospital between January 1980 and December 1991. The preoperative workup included routine clinical and ultrasonographic examinations. At laparoscopy, the technique involved peritoneal cytology, ovarian and peritoneal inspection, cyst puncture, and endocystic examination. If a malignant mass was encountered or suspected, the patients were treated by immediate laparotomy with a vertical midline incision. The laparoscopic and pathologic diagnoses were compared. Long-term follow-up was studied using data obtained either clinically or by mail using a standardized questionnaire. RESULTS: A total of 757 patients with 819 masses were managed by laparoscopy. The mean age was 35.8 +/- 12.6 years and the mean diameter of the cysts was 6.0 +/- 2.7 cm (range 1-20). During this study, 12 tumors of low malignant potential and seven ovarian cancers were encountered (2.5%). The sensitivity of the laparoscopic diagnosis of malignancy was 100%, the specificity 96.6%, and the negative predictive value 100% (773 cases). The positive predictive value was only 41.3%, as 27 tumors were falsely diagnosed as suspicious or malignant. Among eight complications attributed to the diagnostic procedure, three involved spillage of cyst contents. CONCLUSION: Using cautious management and strict guidelines, laparoscopic diagnosis of adnexal masses appears reliable and safe, allowing immediate and adequate surgical treatment.

Adnexal Diseases↗

Laparoscopic management of tubal ectopic pregnancy.

As with laparotomy, laparoscopic treatment of ectopic pregnancy (EP) can be either conservative or radical. After conservative laparoscopic treatment by salpingotomy the risk of failure (between 4 and 6%) is comparable with that observed after similar treatment by laparotomy. The fertility results after laparoscopic treatment of EP are comparable if not better than those observed after similar treatment by laparotomy. These two reasons, together with the considerable advantages of endoscopy over laparotomy, mean that today laparoscopic treatment is without question the best surgical treatment for EP. The prognosis for post-EP fertility is unrelated to the characteristics of the EP (size, rupture, location). The post-EP fertility depends mainly on the patient's previous history. We have established the Therapeutic Scoring System for EP by assessing the different factors affecting future fertility and multivariable analysis. This score allowed us to choose the most suitable treatment to preserve fertility and reduce the risk of recurrence between conservative laparoscopic treatment, laparoscopic salpingectomy with or without contralateral tubal sterilization.

Chorionic Gonadotropin↗

Classification of endometriosis.

A perfect endometriosis classification should be a common language and an expert system which helps the gynaecologist to decide the treatment of each patient. The staging of endometriosis is not a new idea; the first classification based on histologic criteria was presented in 1941. Since this initial attempt, several classifications have been proposed. These various systems are reviewed in terms of their advantages and defects. The revised American Fertility Society (AFS) endometriosis classification system is now accepted worldwide as the endometriosis international language. Laparoscopic staging and measurement techniques are presented and discussed. In recent reports, changes to the revised AFS classification have been proposed, including a better description of atypical and deep infiltrating peritoneal implants, and a stage V for patients with bilateral, extensive, dense adhesions. Despite its well-known advantages, the revised AFS classification cannot be used as a satisfactory expert system. A better understanding of endometriosis is required to improve the present system. Scientifically based scores for each lesion and a marker for disease 'activity' will be fundamental to a classification which will act as a valuable expert system and become the endometriosis classification of the twenty-first century.

Endometriosis↗

Results of conservative laparoscopic treatment of isthmic ectopic pregnancies: a 26 case study.

Twenty-six ectopic pregnancies located strictly within the isthmus were treated surgically using conservative laparoscopic techniques. In each and every case, the Triton monopolar electrode was used to perform salpingostomy which was followed by aspiration of the trophoblast. This therapeutic approach is very reliable since only one failure was observed (3.9%), requiring a further operation during which salpingectomy was carried out by laparoscopy. It was possible to evaluate subsequent fertility for 11 patients, seven of whom (63.6%) obtained an intrauterine pregnancy and only one patient (9.1%) had a recurrence. This highly satisfactory prognosis is perfectly comparable with that obtained with treatment via laparotomy with segmental resection of the isthmic portion of the tube and immediate or delayed anastomosis. These very encouraging results mean that conservative laparoscopic treatment presents an advantageous alternative to classic surgical treatment for isthmic ectopic pregnancies, in that the patients are spared a laparotomy.

Female↗

Fertility following laparoscopic management of benign adnexal cysts.

Fertility following laparoscopic treatment of benign adnexal cysts without ovarian suture was studied retrospectively. Patients with endometriomas or who were previously infertile were excluded. Thirty-eight patients treated conservatively were included, 10 after partial resection of functional cysts, 23 after an ovarian cystectomy and six after treatment of a paraovarian cyst. One patient had two cysts. The overall intrauterine pregnancy rate was 92%; one patient had an ectopic pregnancy (2.6%). From these results, we conclude that fertility following laparoscopic treatment of adnexal cysts appears to be normal. Technical guidelines to improve laparoscopic cystectomy are proposed.

Adnexal Diseases↗