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Biomedical subjects

G Fourtanier

Publications and source records attributed to G Fourtanier.

At least 37 records · Page 2Linked to original sources

[Nissen fundoplication done by remotely controlled robotic technique].

Two Nissen fundoplications were performed by a minimally invasive robotic technique on May 19, 1998. The Mona robot, was placed to the left of the patient. It held and activated surgical tools. The surgeon was placed some 3 meters from the patient and was seated at a console. He was not scrubbed. He commanded the 3 robotic arms by manipulating two handles, while observing a 3 dimensional picture recreated by a binocular system. Manipulations of the handles were translated into digital information by a computer. This information was modified by the computer with downscaling of the amplitude of motion by a factor 1 to 3 or 1 to 5. Physiologic tremor was eliminated. The computer delivered an impulse in command of the articulated robot arms via a 5 m long cable. Operating time was 4.30 hours, and 1.30 hours respectively. Blood loss was estimated at 20 and 30 ml. The two patients were discharged on the first postoperative day after a gastrograffin swallow had been performed in order to check the position of the wrap and its patency. Our experience with the Mona device may suggest that surgical robotics could have an increasingly important role in tomorrow's operating theatres. It should allow for more precise procedures, performed under better circumstances.

Adult↗

[Surgery for pathological obesity].

Morbid obesity is defined by a body mass index greater than 40 kg/m2 and constitutes a real disease, which shortens the patient's life expectancy, especially as a result of multiple metabolic, endocrine or respiratory complications. Since it has been demonstrated that these complications are improved by weight loss and as diets very often fail, surgical treatment has been proposed to these patients. Techniques have advanced since the 1960s: intestinal bypasses have been abandoned because of complications related to malabsorption. Biliopancreatic or gastric bypasses may be proposed to extremely obese patients, but most patients can benefit from vertical or inflatable ring gastroplasty, which is adjustable and reversible. It can be performed by laparoscopy which limits postoperative complications and the incisional hernias classically observed after laparotomy. This treatment can only be considered in the context of a multidisciplinary team composed of an endocrinologist, psychologist and dietician to ensure good selection and attentive follow-up of patients.

Gastroplasty↗

Surgery vs endoscopy as primary treatment in symptomatic patients with suspected common bile duct stones: a multicenter randomized trial. French Associations for Surgical Research.

OBJECTIVE: To compare surgical treatment (ST) with endoscopic management (EM) in patients with suspected common bile duct stones. PATIENTS: Two hundred twenty eligible patients originating from 18 surgery units. Patients enrolled in this multicenter randomized study had clinical symptoms that included jaundice, mild pancreatitis (Ranson score < or = 2), or mild acute cholangitis; biliary colic (with increased alkaline phosphatase levels); and common bile duct stones or a common bile duct diameter of 1 cm or larger on ultrasonography. METHODS: Two hundred two patients were randomly assigned to either ST (n=105) or EM (n=97) during a 5-year period. Both groups were comparable with respect to age, sex, American Society of Anesthesiologists score, and clinical presentation. MAIN OUTCOME MEASURES: The rates of early postoperative additional procedures necessary to deal with the impossibility to perform the initial procedure, complications, and retained stones after ST or EM. Subsidiary endpoints were intention-to-treat analyses of mortality and of major complications and the duration of hospital stay. RESULTS: Surgical treatment was associated with a significantly (P<.001) lower rate of 1 or 2 additional procedures (8% vs 29%) due to a significantly lower rate of the impossibility to perform the initial procedure (0% vs 5%) (P<.05), major complications (4% vs 13%) (P<.05), and retained stones (6% vs 16%) (P<.04). Minor complications occurred more often in patients having ST (4%) than in those having EM (0%) (P<.01). Cholecystectomy was performed routinely in 102 patients having ST and electively in 36 patients having EM. There was 1 death in each group initially. On an intention-to-treat analysis, 3 deaths (3.1%) occurred after EM and 1 (0.9%) after ST; this difference was not statistically significant (P=.56). Major complications occurred in 4% of patients having ST compared with 1 1% of patients having EM (P<.002). The median duration of hospital stay was 16 days in patients having ST and 12 days in those having EM; this difference was not statistically significant (P=.09). CONCLUSION: Whether an additional cholecystectomy is performed routinely or electively, the high risk of additional procedures after EM precludes its use as the optimal therapy in patients with symptomatic common bile duct stones, except in those with severe cholangitis.

Aged↗

[Virtual laparoscopic anatomy of the esophagogastric junction].

The anatomy of the GE junction is represented by computer synthetised pictures. This method allows to represent different organs from different angles, emphasis being put on the laparoscopic angle of vision. This should improve anatomical comprehension. The synthetic pictures have been constructed in a figurative representation. Fatty tissues have been omitted whereas the peritoneal layers covering organs and defining spaces are enhanced.

Anatomy↗

Expanded polytetrafluoroethylene patches used in the intraperitoneal or extraperitoneal position for repair of incisional hernias of the anterolateral abdominal wall.

BACKGROUND: Few large studies of the use of expanded polytetrafluoroethylene (ePTFE) in incisional hernia repairs have been done. We performed such a study of ePTFE patches implanted extraperitoneally or intraperitoneally. METHODS: The records of all patients in whom an ePTFE patch was used to repair an incisional hernia in 1987 to 1994 were reviewed retrospectively. RESULTS: An ePTFE patch was implanted in 158 patients, extraperitoneally in 98 and intraperitoneally in 60. There were no perioperative deaths. Serious postoperative complications, including 3 cases of sepsis (intraperitoneally placed patch), occurred in 6 patients (4%). With a mean follow-up of 37 months (range 12 to 90), there were 2 cases of late sepsis (with an extraperitoneal patch) and 6 recurrences (4 with an intraperitoneal patch). CONCLUSIONS: The ePTFE prostheses used in incisional hernia repair are well tolerated in the intraperitoneal position. Their effectiveness in the extraperitoneal position may be comparable to that of mesh but with a lower rate of sepsis.

Adult↗

Liver resection or transplantation for hepatocellular carcinoma? Retrospective analysis of 215 patients with cirrhosis.

BACKGROUND/AIMS: Currently, surgical treatment of hepatocellular carcinoma in patients with cirrhosis is not clearly defined. The objective of this study was, in patients with cirrhosis with hepatocellular carcinoma, to compare liver resection to transplantation assessed by patient survival and to determine whether the tumor recurrence might be influenced by prognostic factors. METHODS: We have gathered all the available data from six French Medical Universities, for 215 patients with cirrhosis with hepatocellular carcinoma surgically treated either by liver resection (102) or by transplantation (113). RESULTS: The overall 5-year survival rate was similar in the transplantation group and in the resection group (32% vs. 31%, p=0.7). However, the 5-year survival rate without recurrence was higher in the transplantation group than in the resection group (60% vs. 14%, p<0.001). Three independent prognostic factors influenced significantly the survival without recurrence: the surgical treatment by transplantation (p<0.001), the number of tumors (p<0.01) and the tumor size (p<0.001). With these factors we defined a prognostic index (Ip) which allowed assessment of the probability of survival without recurrence: Ip= (Xie. x 1.41)+(Nbr T. x 0.19)+(Size TV. x 0.16); Xie=surgical treatment (Xie=0 if transplantation, Xie=1 if resection), Nbr.T. and Size TV.=number of tumors and size of the most voluminous tumor, respectively, according to the histologic study. CONCLUSIONS: These results and this prognostic index are encouraging for liver transplantation as treatment of hepatocellular carcinoma in selected patients with cirrhosis.

Adult↗

Mesh infections after laparoscopic inguinal hernia repair.

Several complications like hematoma and seroma have been reported after laparoscopic inguinal hernia repair (LH). Sepsis due to infection of the patch is an uncommon complication. In this retrospective trial, we evaluated three male patients who developed postoperative mesh infection after LH by transabdominal preperitoneal patch (TAPP) technique in two institutions. Diagnosis was confirmed by clinical symptoms, signs, ultrasonography, and computerized tomography (CT), and definitive treatment was provided by removing the mesh. In the first case, mesh infection occurred 10 months after laparoscopic left inguinal hernia repair with TAPP for recurrence. The infection manifested itself as an external fistula at the drain site. The mesh was removed laparoscopically due to persistent suppuration. In the second case, mesh infection occurred 3 months after transabdominal preperitoneal hernia repair on the left. The patch was removed because of the persistent suppuration despite repetitive drainage and lavage. In the third case, mesh infection occurred in 15 days after transabdominal preperitoneal hernia repair on the right. External drainage was performed under CT guidance, but suppuration could not be stopped. Thus the mesh was removed. In three cases, infection could not be stopped after diagnosis despite drainage and antibiotic coverage, and then it was decided to remove the mesh. The meshes were removed under general anesthesia for the first two cases and under local anesthesia for the third one. During the follow-up period, no recurrences were noted. The mesh infections of these three cases, resistant to conservative treatment methods, completely disappeared after mesh removal.

Adult↗

Metabolism of the new immunosuppressor cyclosporin G by human liver cytochromes P450.

Cyclosporin G is a new immunosuppressor structurally similar to cyclosporin A. Although this drug is pharmacologically as active as cyclosporin A, it is less toxic, in particular at the kidney level. The aim of this work was to identify the enzyme system(s) involved in the oxidative metabolism of cyclosporin G in man: (1) in a bank of human liver microsomes (n = 22), cyclosporin G oxidase activity correlated significantly with cyclosporin A oxidase activity (P < 0.0001) and with the level of CYP3A4 (P < 0.002), determined by immunoblot; (2) specific inhibitors of CYP3A4, troleandomycin, and ketoconazole, inhibited cyclosporin G oxidase activity by more than 80%; (3) antiCYP3A4 antibodies specifically inhibited this activity by nearly 90%; (4) cyclosporin A was a competitive inhibitor of cyclosporin G oxidase and vice versa; (5). Among a battery of cDNA-expressed CYPs, only CYP3A4 was able to generate detectable amounts of metabolites of cyclosporin G and cyclosporin A with a turnover number close to that calculated from experiments with liver microsomes; (6) in human hepatocytes in culture, pretreatment of cells with rifampicin and phenobarbital, 2 inducers of CYP3A4, produced a great increase in cyclosporin G oxidase activity, while beta-naphthoflavone, an inducer of CYP1As, did not. We conclude that CYP3A4 is the major enzyme involved in the oxidative metabolism of cyclosporin G in human liver.

Adult↗

Multicentre study of surgical complications of colonoscopy.

A total of 196 records of colonoscopic surgical complications were reviewed during a 12-year period. Perforation (183 patients) and haemorrhage (11) were the two main complications. Diagnosis of perforation was delayed in 58 per cent of patients. The sigmoid colon was the site of perforation in 72 per cent with evidence of peritoneal contamination in 59 per cent. Postoperative mortality rate of perforation was 12 per cent and was significantly related to a past history of medical disease and size of perforation. Postoperative morbidity rate was 43 per cent. There were two deaths after colostomy closure. The overall mortality rate of colonoscopic perforation requiring an emergency surgical procedure reached 14 per cent. Haemorrhage always occurred after endoscopic polypectomy; the postoperative course was uneventful in these patients.

Adult↗

[Two-year results of celioscopic hernioplasties using an intraperitoneal ePTFE patch. A prospective multicenter study of 184 cases. Groupe CHIC (Cure des hernies inguinocrurales sous coelioscopie)].

Two hundred and four groin hernias in 173 patients were laparoscopicaly treated using an intraperitoneal ePTFE patch and prospectively studied. Two patients died for diseases unrelated to their hernia nor their hernioplasty. Eight patients were lost to follow up (5.2%), 163 were followed up for at least 1 year, without recurrence at their last examination, and 155 were followed up for at least 2 years. This study concerns these 155 patients accounting for 184 hernioplasties. Twelve recurrences (6.5%) were found in 11 patients, 10 of 12 occurred within the first year after operation. After each surgeon's 20th hernioplasty the recurrence rate was 3 of 113 hernioplasties (2.6%) (p < 0.05). Late local pain around the patch and its staples was found in 12 patients, slight in 10 cases, mild in 1 case and serious in 1 case. Local hypoesthesia of the upper internal part of the thigh was found in one patient. Not any testicular atrophy, nor intraperitoneal complications were observed. This study suggests that: 1) the 2-year recurrence rate of intraperitoneal ePTFE hernioplasties is not very different, after the learning phase, from those of many other procedures; 2) their expensive price lead to use these techniques only when other efficient procedures are not feasible, for example in the challenged treatment of recurrent hernia after failure of a preperitoneal prosthetic hernioplasty.

Adult↗

[Celioscopic treatment of recurrence of inguinal hernia after insertion of a prosthesis. Value of the intraperitoneal technique with ePTFE patch? Group CHIC (Cure des Hernies Inguino-Crurales sous Coelioscopie)].

From April 1993 to December 1994, 14 failures of classic prosthetic herniorraphies in 13 patients (13 men) were treated by a laparoscopic intraperitoneal onlay mesh technique (IPOM) using an ePTFE patch. The mean age of these patients was 55.69 +/- 13.11 years (28 to 70). The mean operating time was 72.5 +/- 24 mn (40 to 120). The technique could not be performed in one case. The mean postoperative pain at D1, evaluated by a visual analog scale graduated from 0 to 10 was 2.36 (2 to 3). The mean hospital stay was 1.64 days (1 to 3). One inguinal hematoma occurred and resolved after a short incision. The mean time to return to work or normal activity was 12.14 +/- 7.25 days (3 to 30). All patients were reviewed. The mean follow-up was 13.37 +/- 2.87 months (6 to 25). No testicular atrophy was observed. One recurrence occurred at M6 treated at M9 by an open procedure. Our study suggests that this technique, avoiding extensive preperitoneal dissection, thus decreasing vascular and genital risks, would be useful in the treatment of failures of prosthetic herniorraphies.

Adult↗

Prospective study of prognostic factors in patients with unresected hepatic metastases from colorectal cancer. Fondation Française de Cancérologie Digestive.

Prognostic factors of unresected liver metastases in patients with colorectal cancer are not well established. A total of 544 patients with unresected liver metastases from colorectal cancer were registered in a national survey over a 1-year period and followed until death. Twenty factors were studied in a univariate analysis (log rank test) and 16 influenced survival (P < 0.01). These 16 factors were entered in a multivariate analysis (Cox model) and eight, ranging from the most significant (relative risk of death 1.9) to the less significant (relative risk of death 1.2), independently influenced survival: performance status, alkaline phosphatase level, number of involved liver segments, administration of chemotherapy, presence of extrahepatic metastases, site of the primary tumour, prothrombin time and resection of the primary lesion. Two simple classifications are proposed, taking into account the performance status and the alkaline phosphatase level, or the performance status and the number of involved liver segments.

Aged↗

Surgical mortality and morbidity in malignant obstructive jaundice: a prospective multivariate analysis.

OBJECTIVE: To construct prognostic scores using multivariate analysis for morbidity and mortality in jaundiced patients with malignant biliary obstruction. DESIGN: Prospective study. SETTING: 16 university and 12 general hospitals affiliated to the French Association for Surgical Research. MAIN OUTCOME MEASURES: Results of application of severity indexes for mortality and morbidity constructed from 17 variables. That for mortality was: 0.0497 x age + 0.9219 x American Society of Anesthesiologists' (ASA) grade + 0.0037 x serum bilirubin concentration minus 0.0239 x prothrombin time + 0.0001 x white cell count minus 5.593. That for morbidity was: minus 0.7499 x ASA grade + 0.0294 x prothrombin time + 1.4220 x cause (0 = carcinoma of bile duct, 1 = pancreatic cancer) minus 1.5080 x operation (0 = bypass, 1 = resection) minus 1.537. RESULTS: The scores correctly predicted mortality in 77% and morbidity in 65% (infective morbidity in 73%). CONCLUSIONS: We recommend that when the mortality index is negative operation should be the treatment of choice, and when it is positive the patient should be advised to have non-surgical palliative treatment. When the morbidity index is negative the risk of complications is high, and when it is positive the risk is low. The application of these indexes allows for better choice of patients suitable for operative treatment of malignant biliary obstruction.

Adult↗