Surgery of chagasic megacolon.

Area of Science:

• Tropical Medicine
• Gastroenterology
• Parasitology

Background:

• Chagas' disease, caused by Trypanosoma cruzi, is endemic in Latin America, affecting millions.
• Intestinal complications, particularly megacolon leading to severe constipation, often require surgical intervention.
• Previous surgical approaches have shown limitations due to preserving the dysfunctional rectum.

Purpose of the Study:

• To evaluate the efficacy of pull-through surgical techniques for Chagasic megacolon.
• To compare these advanced procedures with traditional colectomy methods.
• To discuss management of fecaloma and sigmoid volvulus complications.

Main Methods:

• Review of surgical procedures including abdominoperineal endoanal pull-through resection and Duhamel-Haddad operation.
• Analysis of long-term follow-up data for functional outcomes.
• Illustration of technical details for accepted procedures in Latin America.

Main Results:

• Pull-through operations, which address rectal dyskinesia, demonstrate superior long-term outcomes.
• Abdominoperineal endoanal pull-through resection and Duhamel-Haddad are favored procedures.
• High rates of satisfactory functional results, normal anal continence, and rare sexual disturbances are reported.

Conclusions:

• Pull-through surgical techniques are effective for managing Chagasic megacolon.
• These methods overcome limitations of previous surgeries by addressing rectal dyskinesia.
• The Duhamel-Haddad operation and abdominoperineal pull-through resection offer favorable functional outcomes.