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      Atresia of the Ascending Colon: A Rarity

      case-report

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          Abstract

          Atresia of the colon is among the rare types of all gastrointestinal atresias. Ascending colon is the rarest site of all the colonic atresias. The authors report a case of a 4-day-old male baby who presented with the features of distal intestinal obstruction. At laparotomy type I atresia of the ascending colon, just distal to cecum, was found. Primary ceco-colic anastomosis along with a covering ileostomy was performed. Ileostomy was reversed 3 weeks later.

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          Atresia of the colon.

          Colonic atresia (CA) is one of the rarest causes of neonatal intestinal obstructions, and no large series can be reported. Therefore, we did perform a retrospective clinical trial to delineate our CA cases and carry out a literature survey. We reviewed the charts of CA cases treated in our center between 1992 and 2002. We aimed to collect all reported cases in Medline, and personal communications with the authors of published series were used to reach the missing data. The chart review revealed 9 newborns with CA treated in our center (6 cases of type III, 2 cases of type II, and 1 case of type IV). These accounted for 3.7% of all gastrointestinal atresias managed in our center. Of the CA cases, 3 were isolated and 6 had at least one or more associated congenital anomalies. The preferred surgical technique at the initial treatment of CA was performing a proximal stoma and distal mucous fistula in an average of postnatal 59.4 hours. The literature survey enabled us to reach 224 cases of CA, including our cases. Because of the low incidence of CA, delay in diagnosis and treatment may occur. The mortality is statistically higher when the surgical management is performed after 72 hours of age. However, the prognosis of CA is satisfactory if diagnosis and surgical management could be made promptly and properly.
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            Colonic atresia: surgical management and outcome.

            Colonic atresia (CA) is a very rare cause of intestinal obstruction, and little information has been available about the management and predictors of outcome. A retrospective clinical trial was performed to delineate the clinical characteristics of CA with special emphasis on surgical treatment and factors affecting outcome. Children with CA who were treated in our department between 1977 and 1998 were reviewed: 14 boys and 4 girls aged 1 day to 5 months. All but 2 referred patients and 1 with prenatal diagnosis presented with intestinal obstruction. Plain abdominal X-ray films showed findings of intestinal obstruction in 14 cases; a barium enema demonstrated a distal atretic segment and microcolon in 4. The types of atresia were IIIa (n=9), I (n=6), and II (n=3). Type IIIa atresias were located proximal to the splenic flexure (n=8) and in the sigmoid colon (n=1), type I atresias were encountered throughout the colon; and all type II atresias were proximal to the hepatic flexure. Associated anomalies were multiple small-intestinal atresias (MSIA) (n=4), gastroschisis (GS) (n=2), pyloric atresia (n=1), Hirschsprung's disease (n=1), and complex urologic abnormalities (n=1). The initial management was an enterostomy in 15 patients (83%), including 2 referred and 2 with GS, and primary anastomosis in the remaining 3 (17%). Secondary procedures were the Santulli operation (n=2), colostomy closure and recolostomy followed by a Swenson operation (n=1), sacroabdominoperineal pull-through (n=1), and colostomy closure (n=1). Leakage was encountered in all primarily anastomosed patients. The overall mortality was 61%. Deaths occurred in patients with associated major anomalies (GS 2, MSIA 3, pyloric atresia 1) (55%) and in 3 patients who were initially managed by primary anastomosis (27%). Two additional patients died of sudden infant death syndrome (18%). Type I atresia was more common than in previously reported series and was associated with proximal multiple atresias. The initial management of CA should be prompt decompression of the intestine by an ostomy procedure, preferably end- or double-barrel. The type of surgery (primary anastomosis without prior colostomy) and associated abnormalities are the major determinants of poor outcome.
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              Congenital colonic stenosis: a case of late-onset.

              Colonic atresia and stenosis are rare causes of intestinal obstruction in the infant. Only 1.8%-15% of intestinal atresias occur in the colon. Congenital colonic stenosis is even less common than colonic atresia. Only 10 cases have been reported in Literature since 1966 and only one late-onset case has been reported in Literature until now. We describe the case of a 4-month-old baby coming to our attention because of an intestinal subocclusion due to a congenital colonic stenosis of the ascending colon. A 4-month-old baby came to our attention for persistent abdominal distension, reduction of bowl function and decaying of overall clinical conditions. A plain abdominal radiograph showed distended intestinal loops with air-fluid levels and no gas in the rectum. During the barium enema the contrast medium appeared to completely fill the lumen of the colon up to the ileo-cecal valve and Cecum appearing higher than normal. Beyond the ileo-cecal valve, the contrast medium showed an abnormal hypotonic dilatation of the small intestinal loops. Suspecting an organic intestinal obstruction, an explorative laparotomy was deemed necessary and at halfway in the ascending colon a stenosis was found. The post-operative course was uneventful and the patient is currently in good clinical conditions, has a normal diet and is thriving. Considering both the Literature and our own experience, it is wise to reckon the congenital colonic stenosis as a rare but possible cause of complete or partial intestinal obstruction not only in the newborn but also throughout the first year of life.
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                Author and article information

                Journal
                APSP J Case Rep
                APSP J Case Rep
                AJCR
                APSP Journal of Case Reports
                EL-MED-Pub
                2218-8185
                14 August 2010
                Jan-Jun 2010
                : 1
                : 1
                : 3
                Affiliations
                Department of Pediatric Surgery, Mayo Hospital Lahore, Pakistan
                Author notes
                Address for Correspondence: Haroon Mansoor, Department of Pediatric Surgery, Mayo Hospital Lahore, Pakistan fariharoon@ 123456yahoo.com .
                Article
                ajcr-2010-1-11
                3417987
                22953246
                a85aee24-e21a-4b34-8a7e-c3f8507640bf
                Copyright © 2010 Mansoor et al

                This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 8 June 2010
                : 10 July 2010
                Categories
                Case Report

                Pediatrics
                atresia of ascending colon,neonatal intestinal obstruction,early ileostomy reversal

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