Management of isolated and associated colonic atresia

Differences in the Outcome of Colonic Atresia with and without Abdominal Wall Defects

INTRODUCTION

 Colonic atresia (CA) is a very rare disease. Two entities of CA can be differentiated: primary CA and CA with abdominal wall defects (AWD). This study aimed to investigate the differences between these two entities, especially for long-term outcomes.

MATERIALS AND METHODS

 Data from the major health insurance company (AOK) were analyzed. Sixty-two patients with ICD-10 codes Q42.1-2 and Q42.8-9 (atresia of the colon and rectum) who underwent surgery within 10 days after their first admission between 2007 and 2016 were obtained.

RESULTS

 Twenty-nine patients had an AWD, and 33 patients had primary colonic atresia (PCA). Significant differences between patients with PCA and AWD were found regarding prematurity but not for other concomitant malformations. Ostomy was the initial therapy of choice for 87.9% (29/33) of patients with PCA and 65.5% (19/29) with AWD. Central venous access was significantly more often in patients with AWD. Overall, patients with CA have an excellent short-term outcome. The 1-year mortality was 3% (1/33) in PCA and 6.9% (2/29) in AWD. Delayed management did not lead to higher mortality. Higher number of admission days and higher hospital costs were related to gastrostomy and short bowel in the long term.

CONCLUSION

 The long-term outcome of CA is related to short bowel and need for initial gastrostomy but not related to AWD, prematurity, or associated anomalies.

Gastroschisis Complicated by Colonic Atresia

INTRODUCTION

Gastroschisis with colonic atresia is a rare association. Due to its rarity and variation in presentation, no standardized surgical treatment option exists. Complicated gastroschisis is associated with a higher morbidity and mortality than intestinal atresia or gastroschisis alone.

METHODS

This is a case report of a neonate with congenital gastroschisis. On day of life 1, a silo was placed. On day of life 4, the upper portion of silo contents appeared more congested with dusky discoloration and the patient was oliguric. She was taken to the operating room for exploration.

RESULTS

The patient required resection of the terminal ileum and an atretic portion of the cecum due to necrosis. Four days later, primary closure of the gastroschisis defect was performed with creation of an end ileostomy. Elective ileostomy takedown was performed 5 months later. She returned to the operating room for anastomotic revision and gastrostomy tube placement for intestinal dysmotility and prolonged ileus. Tube feedings were discontinued 3 months post-operatively.

CONCLUSIONS

Gastroschisis with intestinal atresia is associated with increased hospital length of stay, longer duration of parenteral nutrition, more severe intestinal dysfunction, increased surgical complications, and higher mortality than gastroschisis or intestinal atresia alone. With associated colonic atresia, loss of a significant length of bowel due to necrosis, including the ileocecal region, is almost unavoidable. An already compromised blood supply to the atretic bowel is further impaired by a tight abdominal wall defect and postnatal increases in gravitational force. Complicated gastroschisis remains a complex surgical challenge requiring further discussion.

The outcome of Bishop-Koop procedure compared to divided stoma in neonates with meconium ileus, congenital intestinal atresia and necrotizing enterocolitis

To determine the potential value and suitability of Bishop-Koop procedure (BK) compared to divided stoma (DS) in neonates with meconium ileus (MI), congenital intestinal atresia (CIA), and necrotizing enterocolitis (NEC).A retrospective data collection from 2000 to 2019 on neonates undergoing BK and DS formation and closure for MI, CIA, and NEC was conducted. Ostomy related complications following both procedures were analyzed.One hundred two consecutive patients managed with a BK (n = 57, 55.8%) and DS (n = 45, 44.2%) for MI (n = 38, 37.2%), CIA (n = 31, 30.5%), and NEC (n = 33, 32.3%) were analyzed. Mean operating time for ostomy creation did not differ significantly between BK and DS groups (156 ± 54 vs 135 ± 66.8 min, P = .08). The prevalence of stoma-related complications following BK and DS formation was 8.7% and 31.1%, respectively (P = .005). The complication rate after BK and DS closure was 3.5% and 6.7%, respectively (P = .65). The operating time for ostomy reversal and length of hospital stay after stoma closure were significantly shorter in BK group (82.2 ± 51.4 vs 183 ± 84.5 min and 5.5 ± 2.7 vs 11.3 ± 3.9 days, P < .001).BK procedure is safe, reliable, and suitable technique in neonatal surgery with low complications rate following ostomy creation as well as shorter operating time and length of hospital stay after ostomy closure compared to DS ostomies. Surgeons should keep this technique as an alternative approach in their repertoire.

Complications in neonatal surgery

Neonatal surgery is recognized as an independent discipline in general surgery, requiring the expertise of pediatric surgeons to optimize outcomes in infants with surgical conditions. Survival following neonatal surgery has improved dramatically in the past 60 years. Improvements in pediatric surgical outcomes are in part attributable to improved understanding of neonatal physiology, specialized pediatric anesthesia, neonatal critical care including sophisticated cardiopulmonary support, utilization of parenteral nutrition and adjustments in fluid management, refinement of surgical technique, and advances in surgical technology including minimally invasive options. Nevertheless, short and long-term complications following neonatal surgery continue to have profound and sometimes lasting effects on individual patients, families, and society.

Routine contrast enema is not required for all infants prior to ostomy reversal: A 10-year single-center experience

INTRODUCTION

The incidence of intestinal stricture is low for most conditions requiring a primary small bowel stoma in infants. Routine performance of contrast enemas (CE) prior to stoma closure adds cost and radiation exposure. We hypothesized that routine CE prior to ostomy reversal is not necessary in all infants, and sought to identify a subset of patients who may benefit from preoperative CE.

METHODS

Medical records of infants under age 1 (N=161) undergoing small bowel stoma reversal at a single institution between 2003 and 2013 were retrospectively reviewed. Student's T-test was used to compare groups.

RESULTS

Contrast enemas were performed on 80% of all infants undergoing small bowel ostomy reversal during the study period. Infants with necrotizing enterocolitis (NEC) were more likely to have a CE than those with intestinal atresia (p=0.03) or those with all other diagnoses combined (p=0.03). Nine strictures were identified on CE. Of those, 8 (89%) were in patients with NEC, and only 4 were clinically significant and required operative resection. The overall relevant stricture rate was 2.5%. No patient that underwent ostomy takedown without CE had a stricture diagnosed intraoperatively or an unrecognized stricture that presented clinically after stoma takedown.

CONCLUSIONS

Routine CE is not required prior to small bowel ostomy reversal in infants. We recommend judicious use of enema studies in patients with NEC and high likelihood of stricture.

Colon atresia and frontal encephalocele: a rare association

The association of colonic atresia with craniofacial anomalies has been well described and probably represents a malformative event that occurs in the early embryonal period. We present a case of an infant with colonic atresia and a frontal encephalocele and believe this to be a newly reported association. We review possible pathogenic mechanisms.

Proximal colonic atresia: is right hemicolectomy inevitable?

PURPOSE

Proximal colonic atresia often results in a marked discrepancy of the atretic ends presenting a technical challenge for restoration of bowel continuity. We review our series of colonic atresia patients with particular reference to the techniques for restoring bowel continuity.

METHODS

Case notes of all patients diagnosed with colonic atresia and admitted to our unit between 1997 and 2011 were reviewed.

RESULTS

There were 13 patients with a median gestational age of 39 weeks. Location of the atresia was ascending colon (n = 1), hepatic flexure (n = 9), proximal transverse colon (n = 2) and sigmoid colon (n = 1). The primary procedure was: primary anastomosis (n = 1), right hemicolectomy followed by ileo-colic anastomosis (n = 2), right hemicolectomy and stoma formation (n = 3). Six patients underwent stoma formation, of which five subsequently had a right hemicolectomy at a later procedure. In total, 10/12 patients required right hemicolectomy to facilitate restoration of bowel continuity. Median time to full feeds was 11 days (4-46). Median follow up time was 11 months (22 days-5.6 years).

CONCLUSION

A temporising stoma does not reduce the discrepancy in the calibre of the atretic ends in proximal colonic atresia. Right hemicolectomy and ileo-colic anastomosis should therefore be considered at the initial surgery.