Search PubMed⌕ Search

Biomedical subjects

R Parc

Publications and source records attributed to R Parc.

At least 19 recordsLinked to original sources
PubMed1995

Conservative versus nonconservative treatment of epidermoid carcinoma of the anal canal for tumors longer than or equal to 5 centimeters. A retrospective comparison.

BACKGROUND: The role of radiotherapy alone in the sterilization of anal canal epidermoid carcinomas of 5 cm or more remains to be assessed. Thus, the outcomes of patients treated with radiotherapy alone (RT) versus those treated with preoperative radiotherapy and surgery (RS) were compared retrospectively. METHODS: Between 1972 and 1990, 185 patients were treated with curative intent either with RT alone (n = 147) or with RS (n = 38). The Mean tumor length was 6.18 +/- 1.14 cm and was significantly longer in the RS group (6.55 +/- 1.29 cm) than in the RT group (6.08 +/- 1.08 cm) (P = 0.02). The median follow-up was 77 +/- 57 months and 93 +/- 60 months (P = 0.23) for the RT and RS groups, respectively. For the RT group, the first course of radiotherapy was 40 to 45 Gy in the pelvis for 4 to 5 weeks; after a rest of 4 to 6 weeks, radiotherapy was boosted an additional 15 to 20 Gy for 2 weeks. The RS patients received 40 to 45 Gy in the pelvis for 4 to 5 weeks, then received surgery after a median period of 54 days. RESULTS: The overall 10-year cancer specific survival rates were 58% in the RT group and 66% in the RS group (P = 0.48). The T-stage 10-year cancer specific survival rates were 68% in the RT group and 67% in the RS group for T2 tumors (P = 0.96); 57% in the RT group and 53% in the RS group for T3 tumors (P = 0.85); and 42% in the RT group and 40% in the RS group for T4 tumors (P = 0.05). In the RS group, the local control rate was 75% (3/4) for T2 tumors; 74% (17/23) for T3 tumors; and 82% (9/11) for T4 tumors. In the RT group, the local control rate was 77% (34/44) for T2 tumors; 70% (58/82) for T3 tumors; and 60% (12/20) for T4 tumors. In the RT group, the anal conservation rate was 61% (27/44) for T2 tumors, 59% (48/82) for T3 tumors, and 55% (11/20) for T4 tumors. Local tumoral control and a functioning anus were present in 72 out of 147 (49%) patients [52% (23/44) for T2 patients, 52% (43/82) for T3 tumors, and 30% (6/20) for T4 patients]. In the RS group, the grade 3 complication rate was 9% (13/146) and in the RS group, 5% (2/38). CONCLUSION: For patients with T4 tumors, preoperative radiotherapy and surgery seemed to be better in terms of survival and local tumor control rate, but the difference was not significant probably because the number of patients in the RS group was small. For these large tumors, the treatment should probably be more aggressive, combining chemotherapy and radiation therapy, but the increase of local control in relation with the addition of cytotoxic chemotherapy to irradiation is not proved.

Adult↗
PubMed1995

Surgical management of ileosigmoid fistulas in Crohn's disease: role of preoperative colonoscopy.

PURPOSE: Surgical treatment of ileosigmoid fistulas in Crohn's disease remains controversial and can be radical (resection of both segments) or conservative (ileal resection with suture or wedge resection of the sigmoid). At our institution, the sigmoid defect is sutured if the sigmoid is not affected by primary Crohn's disease or by important stricture; otherwise, the sigmoid is resected. We reviewed our experience to evaluate our results with this procedure. METHODS: Thirty patients with ileosigmoid fistulas underwent operation. Among them, 15 had a preoperative colonoscopy, whereas others had no endoscopic work-up. In nine patients, the sigmoid was thought to be affected by Crohn's disease (n = 7) or stricture (n = 2) and was resected. In 21 patients, the sigmoid was thought to be affected by proximity, and a simple suture (n = 15) or wedge resection (n = 6) was performed. Eleven patients had a temporary stoma (37 percent). One had coloprotectomy. RESULTS: One patient died postoperatively. One patient had postoperative sigmoidocutaneous fistula after conservative treatment. Histology of the sigmoid specimen showed Crohn's disease in 8 patients (27 percent), including 5 of 9 resected specimens, and 3 of 21 conservative procedures. All patients with Crohn's misdiagnosis did not have preoperative colonoscopy. Nine of 11 stomas were closed in a median delay of four months. With a median delay of nine years, four patients have again undergone surgery for recurrent colonic Crohn's disease, all of whom underwent surgery initially without preoperative colonoscopy. CONCLUSION: Preoperative endoscopic assessment of the colon is a reliable guide to use when choosing between sigmoid resection or a conservative approach and can result in reduced morbidity and improved long-term results.

Adolescent↗
PubMed1995

Epidermoid carcinoma of the anal margin: 17 cases treated with curative-intent radiation therapy.

Between 1973 and 1991, 17 patients with epidermoid carcinoma of the anal margin without evidence of distant metastasis were treated with curative-intent radiation therapy (RT). There were nine T1-tumors, six T2-, one T3- and one T4-tumor; two patients presented with inguinal node involvement: one N1 and one N3. Nine patients underwent prior incomplete local excision (six with microscopic involvement of surgical margins and two with macroscopic residual disease). The radiation dose to the tumor was 60-70 Gy; the radiation dose to the inguinal lymph nodes was 40-45 Gy in N0, and 50-60 Gy for involved inguinal nodes. The 5- and 10-year cancer-specific survival rates were 86.2% and 77.5%, respectively. The same probabilities were 100% and 100% for T1-tumors, 60% and 40% for T2-tumors. Severe complications occurred in two patients, one anal radionecrosis requiring a colostomy and one permanent anal incontinence after local excision, which was non-related to irradiation. For the cured patients, the sphincter preservation rate after 5 years was 82% (9/11). In univariate analysis and in Cox multivariate analysis, the cancer-specific survival rate was influenced by one factor: the tumor size.

Adult↗
PubMed1995

[Care patterns and resumption of social and occupational activities after exeresis surgery in Crohn's disease. Study of 58 patients].

The aim of this retrospective study was to describe care patterns and conditions surrounding the resumption of social and work activities after intestinal resection for Crohn's disease. Fifty-eight patients were evaluated regarding their stay in the department of surgery, use of care and resumption of social and work activities within the first year after intestinal resection. Data were obtained from medical records and answers to a medical questionnaire. Forty patients replied to the questionnaire. Mean length of stay in the department of surgery was 16 +/- 9 days. Length of stay was positively correlated to non-elective surgery, colonic resection, presence of fistulae or abscesses, and to the creation of a stoma. Main interval between surgery and resumption of work was 11 +/- 8 weeks. Only one patient was unable to return to work because of the disease. Seventy per cent of the patients who went back to work said that their quality of life was improved after surgery in comparison with their preoperative status. In conclusion, this study suggests that most of the patients undergoing intestinal resection for Crohn's disease can go back to work without particular difficulties, and consider that their quality of life has been improved by surgery.

Adolescent↗
PubMed1995

[Enterovesical fistulas in Crohn disease: diagnosis and treatment].

Internal fistula is a complication of Crohn's disease. Among 589 patients operated upon at Hôpital Saint-Antoine between 1970 and 1992, 17 (2.9%) had entero-vesical fistula. Ileovesical fistulas were twice as frequent as sigmoidovesical fistulas. Typical symptoms were pneumaturia, fecaluria, and recurrent urinary tract infection. Cystoscopy was performed in 8 patients and determined the site of the fistula in each case. The indication for operation was the fistula itself (35%) or another complication of Crohn's disease (65%). Associated lesions were as follows: 6 entero-enteral, 2 ileogenital, 5 enterocutaneous fistulas and 6 intraabdominal abscesses. Resection of the bowel segment responsible for the fistula was performed in every case, with primary anastomosis in 9 cases and enterostomy in 8 cases. The vesical opening was excised and sutured in 10 cases and left open in 7 cases. An urethral catheter was left in place for at least 7 days. There was no postoperative death; one postoperative external vesical fistula healed without reoperation. Seven enterostomies have been closed, one is definitive. There were no late recurrences of vesical fistula.

Adolescent↗
PubMed1994

[Surgery of acute necrotizing pancreatitis. Active prolonged drainage in 157 consecutive patients].

OBJECTIVES: Conventional surgery and non-surgical methods have given unsatisfactory results for the treatment of acute necrotic pancreatitis. We therefore adoptive active prolonged drainage with the aim of controlling both acute enzyme toxicity and secondary necrosis. METHODS: One hundred fifty-seven patients with necrotic pancreatitis defined as the presence of extensive pancreatic or peripancreatic necrosis at laparotomy were divided into three groups according to previous care: group 1 no prior medical or surgical treatment (n = 46, 29%), group 2 prior medical but no surgical treatment (n = 48, 31%) and group 3 prior medical and surgical treatment (n = 63, 40%). Spiral drains were placed in the drainage grooves after necrosectomy and post-operative drainage with Mikulicz bags. Continuous lavage-drainage was then maintained for 45 days. Enteral nutrition was initiated on day 7 (mean) and increased progressively to 75 kcal/kg/day so parenteral nutrition could be interrupted 8 days later. RESULTS: There were 28 deaths (18%) including 6 in group 1, 10 in group 2 and 12 in group 3 (13, 21 and 19% respectively). Deaths were due to early multiple organ failure (n = 16), progressive degradation of the clinical situation (n = 8) and sudden death despite improvement (n = 4). Complications requiring re-operation occurred in 44 patients (28%). Among the 129 survivors, mean duration of hospitalization was 70 days including 60 days in the intensive care unit. CONCLUSIONS: Compared with results from former series, active prolonged drainage appears to be more adapted to the natural history and anatomic presentation of acute necrotic pancreatitis.

Acute Disease↗
PubMed1994

Colectomy and ileorectal anastomosis in patients with Crohn's disease.

Eighty-three patients underwent colectomy and ileorectal anastomosis for Crohn's disease of the large bowel. There were two postoperative deaths and seven anastomotic leaks. Fifty-two patients retained a functioning anastomosis with a mean follow-up of 8 years. Forty had an excellent or good functional result. The cumulative proportion of patients with a functioning ileorectal anastomosis was 77 and 63 per cent at 5 and 10 years respectively. Patients presenting with perforating Crohn's disease had a significantly increased risk of failure of the anastomosis. Perianal Crohn's disease following ileorectal anastomosis was significantly related to the need to defunction or excise the rectum.

Adolescent↗
PubMed1994

Is fecal continence improved by nonstimulated gracilis muscle transposition?

PURPOSE: Gracilis muscle transposition for treatment of fecal incontinence gives variable results. Electric stimulation of transposed muscle recently brought this technique to the surface. METHODS: We reviewed patients who had gracilis muscle transposition for fecal incontinence to determine who might benefit from electrostimulation. RESULTS: Between 1979 and 1991, 22 patients underwent gracilis muscle transposition. At six months, 18 patients had improved continence, but 12 of the 18 were stable with time, and only 1 was fully continent. Six patients were candidates for electrostimulation; four had a contractile but fatigable transposed muscle, and two had ineffective transposed muscle with a gaping nonfibrotic anus. CONCLUSION: Gracilis muscle transposition should be used first for severe incontinent patients, and electrostimulation should be used if there are unsatisfactory results.

Adolescent↗
PubMed1994

[Rectovaginal fistulas in adults].

Recto-vaginal fistulas have multiple causes and a wide range of clinical and anatomical features. Simple fistulas, defined by a low situation, a traumatic origin, and a small size are accessible to simple means of cure. They can be operated from a vaginal approach, with conversion into a third degree perineal tear followed by repair of the perineal body, and the anal canal; they can be managed from a transanal approach, using endorectal flap advancement technique. Complex fistulas, defined by the etiology (IBD, radiation enteritis, cancer, postoperative), a high situation, or a large size, require larger and more sophisticated operations such as a combined abdomino-perineal approach or a muscle flap technique. Among the numerous techniques described for the cure of recto-vaginal fistulas, the authors emphasize those currently used by the most experienced teams of colo-rectal or gynecological surgeons.

Adult↗
PubMed1994

[Results of ileoanal anastomosis with mucosectomy and "J" pouch in hemorrhagic rectocolitis].

The aim of this study was to assess the results of ileal "J" pouch-anal anastomosis in ulcerative colitis. One hundred and fifty six patients operated on between 1983 and 1991 for ulcerative colitis were followed-up prospectively since the surgical procedure with a mean of 29 +/- 16 months (range: 6 to 92 months). There was no postoperative death. Forty-four patients (28%) presented 48 post-operative complications and 14 (9%) were reoperated. Twenty-five patients (16%) were reoperated because of a late complication. Three pouches had to be removed for untreatable fistulas which appeared to be related to a Crohn's disease in 2 cases; the reestablishment of a diverting loop ileostomy was mandatory in 2 further patients for anoperineal sepsis. The mean stool frequency at 1 year was 4.5 +/- 1.9; 40% of patients did not have nocturnal stooling. Daytime and nighttime continence were normal in 90.7% and 77.5% of cases respectively, 87% of patients considered their social life improved by the surgical cure of the disease. The results observed 5 years after the surgical procedure in 37 patients were similar to those observed at 1 year. Twenty-five patients (16%) presented one or several episodes of pouchitis, including 5 cases of chronic pouchitis. It is concluded that the treatment of ulcrerative colitis, ileal "J" pouch-anal anastomosis, is a safe and effective procedure which provides good functional results.

Adolescent↗
PubMed1994

[Did the stage of diagnosis and the surgical management of colonic cancers change over the last ten years? Apropos of 303 patients].

The major prognostic factors in colonic cancer are parietal invasion, lymph node spread and distant metastasis, as summarized in the Dukes classification. The aims of this study were to find any variation of these parameters between patients operated in 1981 and those operated in 1991 and whether the mortality and morbidity rate were modified. One hundred and twenty seven patients in 1981 and 176 in 1991 were considered. Age, sex, clinical features, tumor staging and histologic data were reviewed. Mortality and morbidity rates were established. Mean age was 67 (+/- 14) in 1981 and 69 (+/- 15) in 1991. Obstructing carcinomas were present in 8 cases (7%) in 1981 and 20 (13%) in 1991. At laparotomy, metastases were found in 16 cases (13%) in 1981 and 25 (14%) in 1991. Tumors were resectable in 22 patients (17%) in 1981 and in 23 (14%) in 1991. Tumor staging showed in 105 specimens in 1981: 24 Dukes' A (23%), 39 Dukes' B (37%), 26 Dukes' C (25%) and 16 Dukes' D (15%). In 1991, the study of 153 specimens found 23 Dukes' A (15%), 52 Dukes' B (35%), 54 Dukes' C (36%) and 24 Dukes' D (16%). None of the differences were statistically significant. Overall mortality rate in 1981 was 4.3% (5 patients including two anastomotic leaks) and 6 (5.2%) patients were operated for surgical complications including 5 anastomotic leaks. In 1991, 3 patients (1.7%) were operated and only one for an anastomotic leak. There were no deaths. Mortality and morbidity rates were significantly different (p < 0.05) between 1981 and 1991. As far as Dukes classification is concerned, the prognostic variables of colonic cancers have not changed over this ten-year period. On the other hand, the progress in surgical management allows curative resection without mortality.

Adenocarcinoma↗
PubMed1994

[Entero-enteral fistulas in Crohn disease: radical or conservative surgical treatment of the "victim" segment?].

OBJECTIVES AND METHODS: Entero-enteral fistulas join a segment affected by Crohn's disease to another which becomes a drainage route and a "victim" of the process. Surgical treatment can be radical (extensive resection of both segments) or conservative (resection of involved bowel and conservation of the "victim"). Fifty-nine patients operated on for Crohn's disease and having 80 entero-enteral fistulas were retrospectively studied. RESULTS: Main surgical indications were symptomatic intestinal stenosis (56%) or abdominal mass (20%) unresponsive to medical treatment. Fistula was discovered during operation in 33 patients (56%). Conservative treatment was performed in 39 fistulas (49%). In 41 fistulas (51%), proximity of fistulous ends, or Crohn's disease's extension, led to radical treatment. In 66 fistulas (82.5%), histologic examination revealed that Crohn's disease affected only one bowel segment, the other demonstrating only non specific features; in the 14 remaining fistulas (17.5%), Crohn's disease affected both segments. CONCLUSIONS: The clinical presentation of entero-enteral fistulas (non-specific symptoms, frequent peroperative diagnosis), their pathological features (victim segment often free of Crohn's disease) plead for a conservative surgical approach, i.e. adapted to real bowel involvement by Crohn's disease.

Adolescent↗
PubMed1993

Pancreatico-duodenectomy for cancer and precancer in familial adenomatous polyposis.

Duodenal adenomas occur in most patients with familial adenomatous polyposis and their potential for malignant transformation appears to be high. In case of rapid polyp growth or severe dysplasia, the place of surgical resection is controversial. We report 2 patients with familial adenomatous polyposis who underwent radical pancreatico duodenectomy several years after the treatment of colonic polyposis. The first patient had a pancreaticoduodenal resection performed for a duodenal adenocarcinoma. The second patient had a pancreaticoduodenal resection with pylorus preservation and pancreatogastric anastomosis performed for recurrent duodenal adenomas with severe dysplasia. Both remained alive without recurrence and with a good functional outcome 24 and 28 months after operation. We conclude that radical prophylactic surgery may be indicated for patients with familial adenomatous polyposis who have severe duodenal polyposis.

Adenomatous Polyposis Coli↗
PubMed1993

A report of forty-four instances of pancreaticoduodenal resection in patients more than seventy years of age.

Between January 1970 and December 1990, 223 patients underwent pancreaticoduodenal resection for pancreatic or periampullary tumors. Forty-four of these patients were 70 years of age or older and 179 patients were less than 70 years of age. In the older group, 27 patients were operated upon after 1986. The overall operative mortality rate was 9.0 percent and 2.5 percent during the last five years. The overall operative mortality rate was 4.5 percent in patients more than 70 years of age and 10 percent in those less than 70 years of age. The overall operative morbidity rate was 35 percent; 36 percent in patients more than 70 years of age and 35 percent in those less than 70 years of age. Survival was related to tumor histologic factors. For carcinoma of the pancreas, the survival rate at five years was 17 percent in patients more than 70 years of age and 19 percent in patients less than 70 years of age. For the ampullary carcinoma, the survival rate at five years was 38 percent in patients more than 70 years of age and 45 percent in patients less than 70 years of age. It can be concluded that, in a selected group, age is not a limiting factor for pancreaticoduodenal resection.

Adult↗
PubMed1992

[Colonic complications of acute necrotizing pancreatitis].

Among 126 patients operated upon for acute necrotizing pancreatitis in our department over a 10-year period starting in November 1979, 17 had a colonic resection. Colectomy was made mandatory by a necrotic or ischaemic appearance (12 cases, including 3 bowel perforations), an isolated perforation (2 cases) or extensive fat necrosis of the pericolonic atmosphere (3 cases). The hospital mortality was 5 out of the 17 cases. In 6 patients, the pathological results suggested that colonic resection was unnecessary. Since May 1988, a diverting loop ileostomy has been performed whenever colonic viability was found to be dubious at laparotomy. After this policy was introduced no case of secondary colonic complication was encountered. Nevertheless, there still are "abusive" colectomies unjustified by the pathology. Their number should be reduced by a more cautious indication of colonic resection in acute necrotizing pancreatitis.

Acute Disease↗
PubMed1992

Tumor necrosis factor-alpha in liver transplantation and resection. No evidence for a key role in ischemia-reperfusion injury.

Experimental studies have shown that liver ischemia-reperfusion induces Kupffer cell activation and tumor necrosis factor-alpha (TNF alpha) release. The aim of this work was to determine whether severe hepatic ischemia and subsequent reperfusion triggers TNF alpha release in man. Serum TNF alpha was measured before and 3, 10, 30, 60, 120 min after revascularization and postoperatively at day 1 and 2 in 11 patients with orthotopic liver transplantation (group 1) and 4 patients with liver resection with vascular occlusion (group 2). In group 1, TNF alpha levels decreased during the first few minutes of reperfusion, then increased slightly to peak at 120 min (40 +/- 13 pg/ml). Primary non-function occurred in 1 patient in whom low peroperative levels of TNF alpha levels were measured. In group 2, no significant changes in TNF alpha levels were observed. These data, in a small number of patients: (a) show that hepatic ischemia-reperfusion does not result in major TNF alpha production; (b) do not support a primary pathogenic role for TNF alpha in damage after ischemia-reperfusion in humans.

Humans↗