1. [Outcome of posterior anorectal myectomy for the treatment of idiopathic chronic constipation].
- Author
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Ortega Escudero M, Gutiérrez Dueñas JM, Hernández Díaz C, Ruiz Hierro C, Chamorro Juárez R, and Ardela Díaz E
- Abstract
Objecives: The aim of this study is to assess the outcome of surgery (Lynn's myectomy) in patients with chronic persistent constipation and failure of medical treatment., Material and Methods: Descriptive study of patients with severe chronic constipation treated by posterior anorectal myectomy (Lynn's technique). We report data from the last 15 years, with a minimum postoperative follow-up of one year. Patients included in the study suffered from a long-term constipation refractory to medical management. Data regarding contrast enema, anorectal manometry and rectal biopsy were recorded. The procedure's outcome is classified following clinical criteria: Asymptomatic: >3 bowel movements per week, with no soiling/incontinence and with no medical treatment; Improvement: >3 bowel movements per week, with no soiling/incontinence but using laxatives occasionally., Results: Nineteen myectomies were performed (median age of 8.47 years). Median time of constipation before surgery was 7.89 years. Rectal biopsy findings: 10 with ganglion cells, 4 without ganglion cells and other abnormalities in 5. Anorectal manometry was performed in 6 patients, 4 presented rectoanal inhibitory reflex. Four patients were diagnosed of Hirschsprung's disease (1 was asymptomatic after myectomy, 2 needed further surgery and 1 was lost in follow-up). Of the remaining 15 patients, 8 were asymptomatic (53.3%), 4 experienced improvement (26.6%) and 1 without clinical changes is on pelvic floor physiotherapy. Two were lost in follow-up. There were no other postoperative complications after long term follow-up., Conclusions: Lynn's myectomy is an effective and safe procedure in patients suffering from persistent chronic constipation despite of medical treatment. It is also the definitive treatment for patients with ultrashort-segment Hirschsprung's disease.
- Published
- 2015