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Vaginal reconstruction utilizing sigmoid colon: Complications and long-term results.

BACKGROUND/PURPOSE: The use of sigmoid colon segments to repair congenital deformities of the vagina is well established. There are little data, however, on complications or functional results in these patients. The purpose of this study was to evaluate complication rates and long-term patient outcomes in the use of sigmoid segments in vaginal reconstruction for congenital anomalies. METHODS: The authors identified 28 patients who underwent vaginal reconstruction with sigmoid colon segments between 1985 and 2000 at their institution. Patient charts were reviewed for surgical technique, complication rates, cosmetic results, functional results, and psychosocial development. Patients were recalled for physical examinations and personal interviews to assess current status. RESULTS: Of the 28 patients, 13 had male pseudohermaphroditism, 6 had Mayer-Rokitansky-Kuster-Hauser syndrome, 2 had true hermaphroditism, 2 had mixed gonadal dysgenesis, 2 had common urogenital sinus syndrome, 2 had adrenogenital syndrome, and 1 had penile agenesis. Mean patient age was 16 years (range, 6 to 21 years). Mean follow-up was 6.2 years (range, 2 months to 15 years). Postoperative complications included introital stenosis (4 patients), mucosal prolapse (4), partial small bowel obstruction (2), perineal wound hematoma (2), superficial wound infection (2), and vaginal prolapse (1). None of the complications have affected long-term patency or cosmesis of the neovagina, nor has mucous production significantly affected quality of life. Fourteen of 16 (88%) adult patients are heterosexually active, 1 is homosexually active, and 1 is asexual. Of the 14 heterosexually active patients, 11 (79%) are "very satisfied" with their psychosexual development and 3 are "comfortable." Four patients are married, and 1 has carried a child to term. All adult patients felt that the appropriate time to undergo surgery was in adolescence. CONCLUSIONS: Reconstruction with sigmoid segments is an effective approach for many congenital conditions requiring vaginal reconstruction. Although surgical outcomes are not perfect, appropriately timed reconstructive vaginal surgery can provide most patients with an improved quality of life. For the best long-term results, a multidisciplinary team must be available from infancy to supply comprehensive support.

Adolescent↗

Detubularized sigmoid colon for bladder replacement after radical cystectomy.

During the last 6 years 24 sigmoid colon neobladders were constructed at our institute according to a surgical technique that provides for an optimal spherical configuration of the orthotopic reservoir. All patients underwent radical cystectomy for locally advanced or superficial recurrent bladder cancer. The surgical complication rate was minimal. Mean followup was 38.3 months (range 7 to 70). Patients were evaluated at 9 and 18 months with urodynamic tests. Daytime continence was achieved in 20 of 21 (95.2%) and in 16 of 17 (94.1%) patients, respectively. Nocturnal incontinence was noted in 9 of 21 (42.8%) and 5 of 17 (29.4%) patients. The mean neobladder capacity was 414 cc and 492 cc, respectively. Endoluminal pressure at the maximum reservoir capacity was 31 cm. water (range 23 to 54) and this did not change significantly at 18 months. Minimal post-voiding residual volume was evidenced in all but 1 patient and was maintained at 18 months. Our modified sigmoid colon neobladder is an easy surgical procedure that provides satisfactory total bladder replacement in select patients.

Adult↗

Stercoraceous perforation of the sigmoid colon: report of two cases.

Stercoraceous perforation of the sigmoid colon has rarely been reported in the literature. This lesion is assumed to be produced by the pressure from a hard scybalum resulting in a perforated ulcer with necrotic edges. Two cases of stercoraceous perforation of the sigmoid colon are presented in this paper. It is difficult to diagnose this lesion preoperatively, although ultrasonograms proved useful in showing the colon perforation. This lesion should always be suspected when a patient who has had chronic constipation presents with sudden severe abdominal pain. It is possible that this lesion is becoming more common as the mean age of the population increases and we stress the importance of immediate surgery and intensive care for improving the prognosis.

Aged↗

Anatomy of the sigmoid colon, rectum, and the rectovaginal pouch in women with enterocele and anterior rectal wall procidentia.

This study describes the anatomy of the rectovaginal pouch, the sigmoid colon, and rectum in women with posterior enterocele and anterior rectal wall procidentia. The anatomy of rectovaginal pouch, sigmoid colon, and rectum was described in 36 women with an enterocele (group A) and compared with those of 43 women (group B) without pelvic organ prolapse. Women with previous incontinence or prolapse surgery were excluded. The mean age in group A was 58 years (40-75) and in group B 35 years (19-64; P < 0.001). There were 15 nulliparas in group B. Nine women in group A had an internal anterior rectal wall procidentia, and one woman had an external anterior rectal wall procidentia. In group A, the rectovaginal pouch was significantly deeper, the sigmoid mesocolon at S1 shorter and showed more often a straight course (P < 0.05). These characteristics (termed "grande fosse pelvienne") were present in 23 women (64%) in group A and in 6 (14%) in group B, three of the latter were young nulliparas (P < 0.001). Age, parity, menopausal status, body mass index, constipation, and varicose veins were not associated with a grande fosse pelvienne. The typical anatomy in women with an enterocele and anterior rectal wall procidentia was a sigmoid colon with a straight course and a short mesentery at S1 and a rectovaginal pouch that covered more than half of the vaginal length. It may be a congenital condition and important in the development of an enterocele and rectal wall procidentia.

Adult↗

Sensitivity and distensibility of the rectum and sigmoid colon in patients with irritable bowel syndrome.

BACKGROUND: Hyperalgesia to visceral stimuli is a biological marker of the irritable bowel syndrome (IBS). Abnormal pain processing is probably of most importance, but biomechanical abnormalities of the gut wall may also contribute to the findings. In the current study, we investigated the sensation of the gut to electrical stimuli as well as the distensibility of the rectum and sigmoid colon in IBS patients and a control group. METHODS: Nine patients with IBS and 11 controls entered the study. The pain threshold to electrical stimuli at the rectosigmoid junction was determined with bipolar electrodes integrated on the biopsy forceps for the endoscope. Subsequently, controlled distensions of the sigmoid colon and rectum were performed with a balloon integrated on a probe for impedance planimetry, providing the possibility to measure the cross-sectional area (CSA), wall tension and strain to different pressures together with the sensation ratings. RESULTS: The pain detection thresholds to electrical stimuli at the rectosigmoid junction were 12.5 (range 7-39) mA in controls and 7.5 (range 0.75-12) mA in IBS patients (P = 0.03). The calculated pressures at the pain detection threshold in the sigmoid colon were lower in the IBS patients (31.5 (range 5-58) versus 5 cm (range 5-25) water; P = 0.03), otherwise no differences were seen in sensation rating to the different distension pressures. The CSA was slightly higher in controls to the different pressures, whereas no differences between the groups were seen in strain and tension of the rectum and sigmoid colon. CONCLUSION: The visceral hypersensitivity in IBS seems to be related to alterations in the nervous system rather than biomechanical parameters such as the tension and strain of the gut wall. Treatment of pain in IBS should therefore be based on drugs with documented action on the nociceptive pathways in the central nervous system.

Adult↗

Giant diverticulum of the sigmoid colon with perforation. Report of a case.

We present a case of perforated giant diverticulum of the sigmoid colon. This condition is extremely rare and only a few cases have so far been reported in the literature. Our case involved a 55-year old woman. Diagnosis was easy with barium enema and CT scan examination. Laparotomy revealed a giant diverticulum of the sigmoid colon compressing adjacent structures with signs of inflammation. An en bloc resection of the sigmoid colon, ovary and fallopian tube was performed with primary colon-rectal anastomosis. The post-operative course was uneventful.

Diverticulum, Colon↗

[Surgical treatment of divertikulitis of the sigmoid colon (author's transl)].

32 patients suffering from diverticulitis of the sigmoid colon underwent resection with end-to-end-anastomosis. In 24 cases the operation was performed electively as a one step procedure, the rest of the patients were operated on by two or three steps. One patient with ileus and peritonitis came to death. 28 from 31 surviving patients live without trouble. Resection of the inflammatory part of intestine is recommended instead of permanent colostomy.

Aged↗

[Treatment of complicated diverticulosis of the sigmoid colon (author's transl)].

55 patients suffering from diverticulosis of the sigmoid colon underwent surgery, 32 of them in a state of emergency (peritonitis, ileus); mortality rate 22%. In 28 patients a colostomy was performed, which later on could be removed to restore the continuity of the colon. The therapy of choice in the early stage of diverticulosis is resection of the sigmoid colon performed as a ono-stage procedure (mortality rate les than 1%).

Adult↗

Adenocarcinoma in tubular duplication of the sigmoid colon.

A rare case of mucus-secreting adenocarcinoma in a tubular duplication of the sigmoid colon is presented. The pertinent radiographic manifestations were: a calcium containing soft tissue mass located at the blind end of a 20 cm barium filled tubular duplication originating at the sigmoid colon.

Adenocarcinoma, Mucinous↗

Differences between features of adenoma in the rectum versus sigmoid colon.

OBJECTIVE: Although the prevalence of cancer in the rectosigmoid is high compared with that in the more proximal colon, the features of cancer developing from an adenoma have yet to be elucidated. The aim of this study is to examine the clinicopathological relationship between cancer and adenoma in the rectosigmoid. METHODS: A total of 340 adenomas located in the rectosigmoid in 255 patients were retrospectively examined regarding such clinicopathological factors as location and the grade of dysplasia. RESULTS: The prevalence of adenoma was 102 in the rectum and 238 in the sigmoid colon, respectively, whereas the prevalence of adenoma with high-grade dysplasia was 39 in the rectum and 48 in the sigmoid colon, respectively. This prevalence of adenoma with high-grade dysplasia was thus significantly higher in the rectum than in the sigmoid colon (p < 0.02). CONCLUSIONS: These findings suggest the possibility of different types of cancer development between adenoma of the rectum and sigmoid colon.

Adenocarcinoma↗

Intraperitoneal and sigmoid colon tonometry in porcine hypoperfusion and endotoxin shock models.

BACKGROUND: The objective of the present study was to assess the accuracy of an air tonometry device in vivo within a wide range of regional carbon dioxide tension (PrCO2) values by using saline tonometry as the standard and to investigate the possibilities to monitor perfusion of the intestine by tonometry in the intraperitoneal cavity. METHODS: Piglets were anesthetized and mechanically ventilated. A pair of tonometry catheters was placed in the sigmoid colon, while another pair was placed intraperitoneally in the right lower quadrant of the abdomen. Air tonometric regional PCO2 (aPrCO2) was measured every 15 min intraperitoneally and every 20 min in the sigmoid colon. Saline tonometric measurements were made every 30 min and steady-state values (ssPrCO2) were derived. Hypoperfusion shock was induced by graded constriction of the aorta. Endotoxin shock was induced by administration of lipopolysaccharide (LPS). RESULTS: The obtained average PrCO2 (=matched (aPrCO2+ ssPrCO2)/2) values ranged from 5.1 kPa to 14.7 kPa. Regional air PCO2 (aPrCO2) and steady-state saline PCO2 (ssPrCO2) exhibited a strong positive linear relationship (r=0.959). The 95% confidence interval of the mean of dPrCO2 (=aPrCO2-ssPrCO2) was 0.31-0.46 kPa. Intraperitoneal tonometric PrCO2 was lower than intraluminal PrCO2 in the sigmoid colon, and was also more sensitive to circulatory changes than sigmoid colon PrCO2. CONCLUSION: The regional air PCO2 (aPrCO2) showed good agreement with the steady-state saline regional PCO2 (ssPrCO2). Intraperitoneal measurements may be an alternative method of monitoring intestinal perfusion after abdominal surgery.

Air↗

Giant sigmoid colonic diverticulitis: case report.

Giant colonic diverticulum is a rare condition, and the usual site is the sigmoid colon. In this report, magnetic resonance imaging was performed in a patient with lower abdominal pain. The modality was useful for the evaluation of giant sigmoid colonic diverticulitis and the differential diagnosis.

Colon, Sigmoid↗

Serotonin and 5-hydroxyindoleacetic acid are increased in the sigmoid colon in severe idiopathic constipation.

The distribution of serotonin and dopamine beta-hydroxylase was examined in sigmoid colon specimens from patients with severe idiopathic constipation and control patients with carcinoma of the rectum or colon. Specimens were divided into three regions: (a) the mucosa; (b) the myenteric and submucosal plexuses with the longitudinal and circular smooth muscles; and (c) the circular smooth muscle, for biochemical analysis of serotonin and 5-hydroxyindoleacetic acid (total indoles) and noradrenaline. In both groups of patients, serotonin- and dopamine beta-hydroxylase-like immunoreactivity was localized in nerves in the myenteric and submucosal plexuses, and a sparse innervation was observed in the circular muscle. In addition, intense serotonin-like fluorescence was present in a large number of enterochromaffin cells in the mucosa. Total indole levels were significantly increased in the mucosa (p less than 0.02) and circular muscle (p less than 0.05) of the constipated patients. In contrast, no changes in noradrenaline levels were observed in any of the regions studied. Altered levels of total indoles may thus contribute to severe idiopathic constipation. Analysis of biopsy specimens could be a useful tool in clinical diagnosis and future investigations of diseases of the gut.

Adult↗

Endorectal pull-through operation for diffuse cavernous hemangiomatosis of the sigmoid colon, rectum and anus.

A 6-year-old girl with diffuse cavernous hemangiomatosis of the sigmoid colon, rectum and anus underwent endorectal pull-through operation for sphincter-saving resection. Rectal mucosa was resected from 4 cm above peritoneal reflection to anal skin margin and the normal sigmoid colon was pulled down through the rectal muscular cuff. Ligation of the superior rectal and left internal iliac arteries at operation achieved satisfactory control of bleeding. Postoperative manometric studies showed almost normal sphincter tone and good response to rectal stimuli by balloon inflation. The endorectal pull-through (Soave-Denda procedure) is a common procedure for Hirschsprung's disease and the best procedure for the sphincter-saving treatment of diffuse cavernous hemangiomatosis of the colon and rectum.

Anal Canal↗