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Biomedical subjects

M Ayala

Publications and source records attributed to M Ayala.

39 records · Page 3Linked to original sources
PubMedDate not supplied

[Retrorectal tumors].

OBJECTIVES: To analyze the clinical presentation, and diagnostic and therapeutic implications in patients with retro-rectal tumors. METHODS: This paper reports two patients. Both patients had constipation and change in bowel habits, and the physical examination revealed the retro-rectal neoplasia. One of the patients had rectal intra-luminal invasion due to a schwannoma and underwent a transanal excision, with subsequent recurrence that required a combined abdomino perineal resection due to invasion of the tumor to the anorectal angle. The second patient had a teratoma and had a good outcome after a trans-sacral resection of the neoplasia. CONCLUSIONS: Clinical suspicion is imperative to diagnose these rare tumors. Treatment of choice is complete resection of the tumor. Localization of the neoplasia, as evidenced by image studies will help to decide the best surgical approach.

Adult↗
PubMedDate not supplied

[Surgical treatment of anorectal fistulas. A 17-year experience at the Instituto Nacional de la Nutrición "Salvador Zubirán"].

INTRODUCTION: Surgical treatment for anorectal fistula may be difficult because of the risk of recurrence, prolonged healing or anal incontinence following the operation. OBJECTIVE: To analyze the experience with the surgical management of ano-rectal fistula during a period of 17 years. PATIENTS AND METHODS: The medical records of 105 patients with anorectal fistulas were reviewed retrospectively, with analysis of demographic and clinical data, operative treatment, and results. RESULTS: There were 73% men and 27% women. Mean age was 45 years. 86% had an underlying chronic disease, most frequently diabetes mellitus (21%) and obesity (14%). No anatomic classification of the fistulous tract was done in 86% of cases, and inter-sphincteric tracts were the most frequent type in the classified cases. In 90% of cases, treatment was fistulectomy. Complications occurred in 13% of cases, mainly delayed healing (6.5%). Recurrent disease was documented in 11 cases (10%), and the majority were treated with a new fistulectomy. There were no cases with anal incontinence following the operation. CONCLUSIONS: The necessity of performing the anatomic classification of ano-rectal fistula should be emphasized. Fistulectomy was the most frequent surgical procedure.

Adolescent↗