Sigmoid volvulus as a complication of imperforate anus: a case report

Introduction: we report a case of a 6-year-old boy with chronic constipation due to an imperforate anus and poor adherence to outpatient treatment, who developed a severe sigmoid volvulus requiring Hartmann’s procedure. Objective: the main objective of this report is to contribute to knowledge about a rare condition in children, with few descriptions in the literature. Methods: the study is characterized as a case report, based on the clinical evaluation, medical records, and surgical descriptions of a 6-year-old male patient. Associated with the report, medical databases (PUBMED, LILACS) were searched for reviews and case reports about sigmoid volvulus in children and its relationship with anorectal anomaly, including aspects of diagnosis and treatment. Results: patient, male, 6-years-old, with a history of anoplasty due to an imperforate anus, developed over the years with chronic constipation and multiple fecal impactions removal. After the last procedure, he presented prostration and abdominal pain, with an image diagnosis of sigmoid volvulus. The patient underwent laparotomy, with visualization of extensive necrosis and the option of performing segment resection and colostomy. Conclusion: sigmoid volvulus is a rare condition in children and needs to be quickly identified so that earlier interventions can prevent advanced outcomes.