Familial colorectal cancer: Patient assessment, surveillance and surgical management.

Germline mutations account for 5-10% of colorectal cancer. Most mutations are autosomal dominant with high penetrance and affected patients benefit greatly from appropriate treatment. This review presents the current knowledge regarding familial colorectal cancer and provides practical information based on international guidelines and the best available evidence regarding patient assessment, surveillance and surgical management. Surgeons are often the first point of contact and frequently, the main provider of care for families with cancer syndromes or patients with familial cancer. Patients with a polyposis phenotype should undergo appropriate genetic testing. In non-polyposis patients with a cancer diagnosis, tumor testing for Lynch syndrome can guide the use of genetic testing. In patients without a personal history of cancer or polyposis, a carefully obtained family history with testing of available tumor tissue or of a living relative affected by colorectal cancer informs the need for genetic testing. Surveillance and surgical management should be planned following thorough assessment of familial cancer risk. Evidence exists to provide guidance as to the surveillance strategies required, the specific indications of genetic testing and the appropriate timing of operative intervention. A carefully obtained family history with selective genetic testing should inform surveillance and surgical management in patients who have a genetic predisposition for the development of colorectal cancer.

A radiological and pathological assessment of ileocolic pedicle length as a predictor of lymph node retrieval following right hemicolectomy for caecal cancer.

BACKGROUND: In colon cancer, the number of harvested lymph nodes is critical for pathological staging. It has been proposed that the more central the mesenteric vascular ligation, the greater the nodal yield. The aim of the current study was to determine the association of radiological and pathological ileocolic pedicle length on nodal harvest following right hemicolectomy for caecal cancer. METHODS: A series of 50 patients undergoing right hemicolectomy for adenocarcinoma underwent specimen evaluation. Preoperative computed tomography images were reconstructed and analysed to determine the direct (vessel origin to caecum) ileocolic pedicle length. RESULTS: The median pathological distance from the tumour to the high vascular tie was 80 mm, and median nodal yield was 16.5 nodes. Radiological pedicle length did not correlate with the pathological distance from the tumour to the high vascular tie or nodal yield; however, the pathological pedicle length did correlate with the total nodal yield (r (2): 0.343, p = 0.015). The median pathologically determined length of colon resected (r (2): 0.153, p = 0.289), ileum resected (r (2): 0.087, p = 0.568) and total specimen length resected (r (2): 0.182, p = 0.205) did not correlate with the total nodal yield. An ileal specimen length ≤25 mm [hazard ratio (HR) 14.8, 95 % confidence interval (CI) 1.1-194.5, p = 0.040] and a well-differentiated tumour (HR 10.5, 95 % CI 1.1-95.9, p = 0.037) increased the likelihood of retrieving <12 lymph nodes. CONCLUSIONS: Based on these data, pathologic pedicle length is a determining factor in lymph node retrieval. Preoperative radiological calculation of pedicle length does not help predict the number of lymph nodes retrieved.

Problems and solutions in delivering global surgery in the 21st century.

BACKGROUND: Surgery has had low priority in global health planning, so the delivery of surgical care in low- and middle-income countries is often poorly resourced. A recent Lancet Commission on Global Surgery has highlighted the need for change. METHODS: A consensus view of the problems and solutions was identified by individual surgeons from high-income countries, familiar with surgical care in remote and poorer environments, based on recent publications related to global surgery. RESULTS: The major issues identified were: the perceived unimportance of surgery, shortage of personnel, lack of appropriate training and failure to establish surgical standards, failure to appreciate local needs and poor coordination of service delivery. CONCLUSION: Surgery deserves a higher priority in global health resource allocation. Lessons learned from participation in humanitarian crises should be considered in surgical developments.

Elective resection for diverticular disease: an evidence-based review.

Controversy exists as to the most appropriate management of patients following two episodes of diverticulitis. Despite a growing body of new evidence challenging the concept of elective sigmoid resection after a patient experiences two attacks of diverticulitis, we continue to base our practice on outdated studies carried out more than 30 years ago. The recommendation that patients undergo elective sigmoid resection after two attacks of acute diverticulitis should be re-evaluated as it is generally inappropriate and is not cost effective. Elective resection for uncomplicated diverticulitis does not alter outcome, nor does it decrease mortality or prevent complications of the disease. In fact, based on current literature, 18 patients would have to undergo elective operation to prevent one emergency surgery. This article aims to review the current evidence for elective resection following episodes of diverticular disease and addresses emerging controversies in the management of this disease.

Perineal hernia after proctectomy: prevalence, risks, and management.

PURPOSE: Perineal hernias are infrequent complications of abdominoperineal operations with estimated historic prevalences (from the era where the perineal wound was left open) ranging from 0.6 to 7 percent. The purpose of this study was to identify the modern prevalence of postoperative perineal hernias, factors that may contribute to their development, and examine the methods of repair. METHODS: The Mayo Clinic patient database (1990-2000) was interrogated for the following data identifiers: incisional hernia, perineal hernia, abdominoperineal resection, proctocolectomy, and partial or total pelvic exenteration. All surviving patients were followed up to December 2005. The retrieved patient data was retrospectively analyzed. RESULTS: Of a total of 3,761 patients who underwent abdominoperineal resection (including nonrestorative proctocolectomy and pelvic exenteration) during the study period, 8 developed a perineal hernia (5 females). The median age at hernia presentation was 76 (range, 69-84) years, representing a median interval of 22 (range, 1-60) months from the original operation. All were smokers (> or =15 pack years) and five had received chemoradiotherapy for their original diagnosis. The commonest prevalence was found in patients who had undergone abdominoperineal resection (5/1,266) or pelvic exenteration (2/1,334). Only 1 of 1,161 patients developed a perineal hernia after proctocolectomy despite most being on perioperative immunosuppression for inflammatory bowel disease. Abdominal exploration and repair was performed in four patients whereas four underwent perineal repair (2 of each with mesh). None have recurred with a median follow-up of 36 (range, 6-60) months. CONCLUSIONS: Perineal hernias are rare complications of abdominoperineal surgery with a more common prevalence after cancer operations. Smoking and chemoradiotherapy, but not corticosteroid immunosuppression, may be factors. The abdominal approach has advantages over the perineal approach, but both are suitable with good medium-term results.

Quality-of-life assessment of patients after ileal pouch-anal anastomosis for slow-transit constipation with rectal inertia.

PURPOSE: Severe idiopathic constipation with rectal inertia represents a challenging medical problem that, in extremis, might warrant surgery. We studied a group of patients who have undergone proctocolectomy and ileal pouch-anal anastomosis for this problem. The purpose was to assess the functional success of this procedure and its impact on the social function of the patients. METHODS: Patients with functional, intractable constipation have one motion or less per week and are laxative-dependent. The indication for surgery was based on failure of long-term medical therapy. The selection criteria were normal colonoscopy, normal anal manometry and pudendal nerve latency test, and abnormal transit study and abnormal video proctography. The functional outcome after surgery was assessed by anal manometry and stool frequency. Quality of life was analyzed using the Rand health survey 1.0 consisting of a comprehensive questionnaire used preoperatively and postoperatively with emphasis on physical function, role limitation because of functional/emotional problems, social function, pain, and general health. RESULTS: Fifteen patients (14 females) underwent ileal pouch-anal anastomosis over a seven-year period (1993-1999). The mean age was 41 (range, 25-47) years. All had a temporary defunctioning loop ileostomy fashioned, and there were no anastomotic leaks. Two patients required pouch excision within 18 months because of intractable pelvic pain. The mean stool frequency was eight (range, 3-12) per day at the first follow-up. At the second follow-up, this had improved to five (range, 2-6) per day. The mean resting and squeeze anal pressures preoperatively were 82 cm H2O and 104 mmHg, respectively, and were unchanged after surgery. Significant improvement in lifestyle scores were recorded in the categories of physical function, social function, and pain at the first follow-up and in all categories at the second follow-up (P < 0.05). CONCLUSION: Restorative proctocolectomy is an option in selected patients and leads to progressive improvement in quality of life.