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M Guivarc'h

Publications and source records attributed to M Guivarc'h.

At least 19 recordsLinked to original sources

[Peroperative cholangiography during laparoscopic cholecystectomy].

The aim of this study was to assess the ease and the success of a laparoscopic technique of cholangiography. Following an initial period of training to gain expertise in laparoscopic surgery, 70 patients were included in the study. Six of them had a history of suggestive choledocholithiasis. Intraoperative cholangiography was performed using an angled catheter (Judkins) and a specific tubular cannula (Olsen, Storz) designed to guide and maintain the catheter in the cystic duct. Catheterization of the cystic duct and cholangiography were achieved in 61 patients. In 3 cases, stones were found in the common bile duct. The mean duration of the examination was 11 minutes (6.21). Cholecystectomy was performed after cholangiography. No biliary injuries were observed. These results show that intraoperative laparoscopic cholangiography is easy and not time-consuming. It obviates the need for preoperative investigations looking for biliary stones and provides an excellent definition of the biliary anatomy for safety purposes.

Cholangiography

Polyadenylic-polyuridylic acid as an adjuvant in resectable colorectal carcinoma: a 6 1/2 year follow-up analysis of a multicentric double blind randomized trial.

In a double blind study, patients with operable carcinoma of the colon and the upper rectum, who have undergone a macroscopically complete resection of their tumor, were randomized to receive either (i) polyadenylic-polyuridylic acid (AU), one i.v. injection of 60 mg (in 50 ml of solution) once a week for 6 weeks, or (ii) a placebo (P) one i.v. injection of 50 ml of a saline solution with the same schedule. From January 1983 to December 1986, 288 patients were enrolled: 145 in AU group and 143 in P group. The main clinical and pathological characteristics were equally distributed throughout the two groups. There was a significant difference (P < 0.02) in the overall survival (OS) between the two groups, in favor of the P group. The 5-year OS rate was 68% (SD = 4%) in the AU group versus 81% (SD = 3%) in the P group. Thus, AU as a single adjuvant, appears to be ineffective and therefore has no indication in the treatment of colorectal carcinoma.

Aged

Intraoperative sonography during cholecystectomy for gallstones.

The current study reports on the ease and results of intraoperative sonography in 131 patients operated upon for gallstones. Sonography was performed through a standard incision or a small incision, without duodenal mobilization and prior to systematic cholangiography. Sonography or cholangiography, or both, detected biliary duct stones in eight patients. The entire biliary tract was visualized by ultrasound in 123 patients. Sonography identified seven patients with stones in the major biliary ducts and overlooked only a single stone of the cystic duct. In contrast, intraoperative cholangiography failed to reveal stones in a right hepatic duct and led, in another instance, to unnecessary choledochotomy. During cholecystectomy for gallstones, sonography is a simple efficient technique providing good detection of biliary stones. It is the study of choice and cholangiography is required in only selected instances in which sonographic visualization is incomplete. There may be future value in sonographic applications for laparoscopic cholecystectomy.

Cholangiography

[Sixty-one cases of acute obstructions of the colon caused by cancer. Indications for emergency surgery].

Sixty-one cases of acute malignant colonic obstruction were operated upon within 24 hours after the patient's admission, between 1979 and 1989: 10 for a right colon carcinoma, 51 for a left-sided lesion. Indications, for emergency operation were: complete clinical obstruction, iliac tenderness, radiologic ileal fluid levels and arrest on barium enema. The initial procedures consisted of 8 right hemicolectomies, and for the left-sided obstructions, 32 colostomies, 7 colectomies with immediate anastomosis, and 12 colectomies without anastomosis. Overall mortality was nil for the right side and 4% left-sided obstructions. The current surgical procedures of choice according to the authors are: right hemicolectomy for right-sided obstruction; elective colostomy for the left side. In case of doubt about the mechanism of obstruction or vitality of the colon, a midline approach for operative exploration, followed by colectomy without anastomosis is recommended. Colectomy with immediate anastomosis is possible in rare favourable cases. Subtotal colectomy is indicated in cases of ischemic lesions, caecal perforation or other colonic tumours. Intraoperative irrigation of the colon is rarely permitted in this particular variety of acute obstruction.

Adult

Treatment of gallstones with piezoelectric lithotripsy and oral bile acids. A multicenter study.

The efficacy of the combination of piezoelectric lithotripsy and oral bile acids in the treatment of gallbladder stones was assessed. Three hundred and sixty-three patients with symptomatic radiolucent gallstones in functioning gallbladder were treated in five medical centers using the same protocol with the EDAP LT 01 lithotripter. No anesthesia, analgesia or sedation was used. After one session of lithotripsy, fragmentation was observed in 89% of the patients, and satisfactory fragmentation (fragments less than or equal to 5 mm) in 29%. The satisfactory fragmentation rate was higher in patients with solitary stones less than or equal to 20 mm than in patients with solitary stones 21-35 mm or multiple stones (p less than 0.001). After multiple sessions (mean 1.6 session/patient, range 1-5) the overall rate of satisfactory fragmentation was 50%. After 12 months on oral bile acid therapy, complete clearance of the gallbladder was observed in 69% of patients with solitary stones less than or equal to 20 mm, 25% of patients with solitary stones 21-35 mm and 37% of patients with multiple stones. No complication was observed during the lithotripsy. During follow-up under bile acid therapy, there were five complications (1.4%): four patients had acute cholecystitis and one had mild, self-limited pancreatitis. We conclude that piezoelectric lithotripsy with the EDAP lithotripter is a safe and effective treatment which can be performed in outpatients. Satisfactory fragmentation and rapid disappearance of stones are obtained mainly in patients with solitary stones less than or equal to 20 mm.

Administration, Oral

[Adenocarcinoma of the duodenum. 17 cases].

Seventeen cases of duodenal adenocarcinoma are reported and compared with cases from the literature. Ten tumours were located in the second part of the duodenum, 9 were around the hepatopancreatic ampulla, 4 were above and 4 below this ampulla. Four tumours (23 per cent) had limited intramural expansion (Dukes' stage A or B) and 6 (35 per cent) involved the lymph nodes. The major clinical signs were loss of weight (11 cases), signs of obstruction (9 cases), bleeding (6 cases) and jaundice (6 cases). The paraclinical examinations that were determinant for the diagnosis were gastroduodenal radiographic study (16 cases) and endoscopy with biopsy (9 cases). Computerized tomography was useful for preoperative evaluation. The respective values of these examinations for early diagnosis and excisability of these tumors are discussed. All 17 patients were operated upon: 11 (64.7 per cent) underwent radical excision, 5 had duodenal bypass and 1 had exploratory laparotomy. The overall operative mortality rate was 5.8 per cent, with no deaths for bypasses and excisions. Mean survival after bypass was 5 1/2 months. The one year survival was 63.5 per cent in 5 patients with excision and 83.3 per cent in 6 patients with cephalic duodenopancreatectomy, but none of these patients survived for more than 5 years.

Adenocarcinoma

[Anal metastases from cancer of the colon].

Two cases of anal metastases from sigmoid carcinoma are reported. The two patients were treated by local excision. The various mechanisms of tumoral spread are discussed from a review of the literature; the most frequent mechanism is cellular exfoliation. The most commonly used therapeutic approach is local excision combined, if necessary, with reconstruction of the sphincters.

Adenocarcinoma

Endorectal sonography in the management of rectal villous tumours.

Thirty-seven patients with rectal villous tumours were investigated by endorectal sonography to assess the integrity of the rectal muscularis propria at the tumour level. In four cases assessment of invasion was impossible. In 24 patients, endosonography revealed an ultrasonically superficial lesion not infiltrating the muscular layer. This was confirmed either, in the case of laser treatment, by the absence of malignant recurrence during the follow-up period or by histological examination after surgical resection. In nine patients, endosonography showed infiltration of the muscular layer. This was histologically confirmed in five operated patients. In the remaining four, laser destruction was performed: in two, a rectal adenocarcinoma was present 3 and 6 months later, respectively. These findings show that endosonography has a place in the management of rectal villous tumours, demonstrating invasive cancer in cases where other forms of assessment were wrongly reassuring.

Adenocarcinoma

[33 cases of hematoma of the rectus abdominis muscle in a surgical department].

The authors report a series of 33 hematomas of the recti-abdominis muscles from a surgery department: 15 occurred under anticoagulants 6 were spontaneous, 5 followed trauma and 6 a surgical procedure. The clinical picture was subacute in 24 cases, combining an abdominal pain (32 cases) a mass (10 cases) and an extensive ecchymosis (6 cases). The picture was acute in 6 extensive hematomas with collapse and anemia. In 3 cases an isolated mass was the first symptom. Echography has represented, since 1977, a decisive advance in the diagnosis, which was found to be accurate in 5 out of 10 cases before its introduction, and in 19 out of 20 when it was resorted to in the 23 cases recorded later. TDM is useful only in few cases. 23 patients were have been operated on: 6 for cardiovascular collapse, 3 because the diagnosis had not been made, 8 on order to confirm the diagnosis, 3 because of an increase in size of the hematoma and 3 owing to infection. In the 10 cases not submitted to surgery, the evolution was favourable. The therapeutic approach must be lanced according to the patient's condition, the size, side effect and evolution of hematoma. The aim of the operation is to evacuate the hematoma, to drain it and sometimes to tie up the bleeding vessel.

Abdominal Injuries

[Mirizzi's syndrome].

Six cases of Mirizzi syndrome are reported. The syndrome consists of a special anatomical variant of the cystic duct, which has a low opening but runs side-by-side with the common bile duct, associated with entrapment of a gallstone in the cystic duct or the neck of the gallbladder, partial or total obstruction of the hepatic duct by the stone and by inflammatory lesions, and recurrent cholangitis. Clinical signs are non-specific and suggest at first sight an obstructive jaundice. Pre-operative morphological examination seldom provide a diagnosis before surgery. In the most typical cases ultrasonography shows dilatation of the upper biliary tract with narrowing of the hepatic duct below the dilatation, due to a stone located outside the common bile duct. Opacification of the biliary tract by endoscopic retrograde catheterization of the papilla duodeni or by transparietohepatic puncture give suggestive images (non-opacification of the cystic duct, narrowing of the hepatic duct opposite the extrinsic compression, with overlying dilatation), but these images are not specific. The per-operative diagnosis is difficult owing to the inflammatory lesions, and a diagnosis of cholangiocarcinoma may be envisaged. Cholecystectomy with recanalization of the cystic duct suppresses the extrinsic compression and helps the inflammatory lesions to regress. However, opening and draining the common bile duct is often necessary.

Adult

[Surgical treatment of the so-called Spiegel anterolateral hernia].

The surgical approaches to the so-called spigelian hernias are described on the basis of 16 cases and a review of the literature. The lateral route, used in 12 cases, leads to the hernial sac and to the orifice which is closed electively. Strangulation is frequent. The abdominal route, used in 4 cases, is suitable for occlusions revealing the hernias, resection of the colon, hernial phlegmons and hernias associated with an intra-abdominal lesion.

Hernia, Ventral

[Emergency surgery of left colonic occlusion].

The authors have reported 61 emergency cases of left-sided colonic obstruction recorded over a period spanning for ten years. The observations break down showed that 44 patients had carcinoma of the colon; 9 presented with volvulus; 4 with diverticulitis; 1 with ischemic colitis, and 3 suffered from Ogilvie's syndrome. Surgical procedures, associated or not with cure, included colostomy (30 cases), colonoscopic detorsion (8 cases), resection (22 cases). The overall morbidity and mortality rates were 26% and 13%, respectively.

Acute Disease

[Extracorporeal lithotripsy of gallbladder calculi. Tolerability, complications and early results].

The purpose of this prospective study, conducted on 88 patients, was to assess the tolerance, efficiency and early complications due to a piezo-electric lithotriptor in the destruction of gallbladder stones. One hundred and sixty one sessions were performed in 82 patients. All patients had symptomatic, uncomplicated lithiasis, the diameter of which was less than, or equal to, 30 mm. All patients had less than 7 stones in a functional gallbladder. In 22 patients, the stones were calcified. Lithotripsies were carried out without anesthesia or premedication, except in an 8-year-old child who had to be anesthetized. In 3 cases it was impossible to visualize the gallstones and in 3 other patients, the procedure was discontinued because of abdominal pain. Following the procedure, biliary pain occurred in 20 per cent of the patients. One patient only had biliary colic with transient anicteric cholestasis. Clinical examination, sonography, biological tests were found to be normal in all other patients. Endoscopic sphincterotomy or emergency surgery was never required. Stones were found to be unaltered in 6 patients following 2 lithotripsy sessions. The 76 other patients had fragmentation of their stones. The free gallbladder rate was 15.8 per cent between 0 and 2 months, 24.6 per cent between 2 and 4 months and 51.3 per cent between 4 and 8 months. These results tend to show that the destruction of biliary stones by piezo-electric lithotriptor is efficient and well tolerated. As repeated routine examinations were always negative, the three-day hospitalisation period no longer seems necessary.

Adolescent

[Hematomas of the rectus abdominis muscle. 27 cases].

A series of 27 haematomas of the rectus abdominis muscle is reported; 10 occurred under anticoagulants, 6 were spontaneous, 5 followed a trauma, and 6 were consecutive to a surgical procedure. The clinical picture was subacute in 20 cases, with abdominal pain and extensive ecchymosis, acute in 4 cases, and reduced to an abdominal mass in 3 cases. Since 1977, ultrasonography has been of considerable help in the diagnosis, which was found to be accurate in 5 out of the 10 cases seen before its introduction, and in 13 out of the 14 cases where it was used among the 17 cases recorded later. Nineteen patients were operated upon for the following reasons: 4 for cardiovascular collapse, 3 because no diagnosis had been made, 8 in order to confirm the diagnosis, 1 because of an increase in size of the haematoma and 3 owing to infection. In the 8 patients who did not undergo surgery, the haematoma followed a favourable course. The therapeutic approach must be chosen according to the patient's condition and to the size, side effects and course of the haematoma.

Abdominal Muscles