Abstract
ObjectivesIleus following surgery can arise in different forms namely as paralytic ileus, adhesive small bowel obstruction or as anastomotic stenosis. The incidences of these different forms of ileus are not well known after abdominal birth defect surgery in infants. Therefore, this review aims to estimate the incidence in general between abdominal birth defects.ContentStudies reporting on paralytic ileus, adhesive small bowel obstruction or anastomotic stenosis were considered eligible. PubMed and Embase were searched and risk of bias was assessed. Primary outcome was the incidence of complications. A meta-analysis was performed to pool the reported incidences in total and per birth defect separately.SummaryThis study represents a total of 11,617 patients described in 152 studies of which 86 (56%) had a follow-up of at least half a year. Pooled proportions were calculated as follows; paralytic ileus: 0.07 (95%-CI, 0.05–0.11; I 2=71%, p≤0.01) ranging from 0.14 (95% CI: 0.08–0.23) in gastroschisis to 0.05 (95%-CI: 0.02–0.13) in omphalocele. Adhesive small bowel obstruction: 0.06 (95%-CI: 0.05–0.07; I 2=74%, p≤0.01) ranging from 0.11 (95% CI: 0.06–0.19) in malrotation to 0.03 (95% CI: 0.02–0.06) in anorectal malformations. Anastomotic stenosis after a month 0.04 (95%-CI: 0.03–0.06; I 2=59%, p=0.30) ranging from 0.08 (95% CI: 0.04–0.14) in gastroschisis to 0.02 (95% CI: 0.01–0.04) in duodenal obstruction. Anastomotic stenosis within a month 0.03 (95%-CI 0.01–0.10; I 2=81%, p=0.02) was reviewed without separate analysis per birth defect.OutlookThis review is the first to aggregate the known literature in order approximate the incidence of different forms of ileus for different abdominal birth defects. We showed these complications are common and the distribution varies between birth defects. Knowing which birth defects are most at risk can aid clinicians in taking prompt action, such as nasogastric tube placement, when an ileus is suspected. Future research should focus on the identification of risk factors and preventative measures. The incidences provided by this review can be used in those studies as a starting point for sample size calculations.
Highlights
Ileus following surgery, consisting of both paralytic and mechanical causes, is a frequent complication after abdominal surgery, leading to increased morbidity, mortality, medical costs, and increased length of hospital stay [1–4]
Ileus following surgery can arise in different forms namely as paralytic ileus, adhesive small bowel obstruction or as anastomotic stenosis
Content: Studies reporting on paralytic ileus, adhesive small bowel obstruction or anastomotic stenosis were considered eligible
Summary
Ileus following surgery, consisting of both paralytic and mechanical causes, is a frequent complication after abdominal surgery, leading to increased morbidity, mortality, medical costs, and increased length of hospital stay [1–4]. It is a clinical diagnosis which is characterized by intolerance to. Ileus following surgery can arise in different forms which depend on the definition used. Common causes are paralytic ileus, adhesive small bowel obstruction (SBO) and anastomotic stenosis. Anastomotic stenosis and SBO are mechanical forms of ileus that present later after surgery and could lead to reoperation
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