Ano-rectal Anomalies: Physiological Considerations

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Abstract
Pathophysio-logical examinations in rectal agenesis show the presence of a sphincteric reflex response to rectal distension before operation and its loss after commonly used operations. Possible means of avoiding this are discussed. Normal reflex responses were found in low anal anomalies (ectopic, covered, stenotic anus) after operation. The development of secondary megarectum was found when their treatment was delayed; early performance of the minor procedures is, therefore, advised.