Endosonographic and Manometric Evaluation of Internal Anal Sphincter in Patients with Chronic Anal Fissure and Its Correlation with Clinical Outcome After Topical Glyceryl Trinitrate Therapy

Overview

Journal Int J Colorectal Dis

Specialties Gastroenterology
General Surgery

Date 2007 Jan 12

PMID 17216217

Citations 7

Authors

Marta Pascual

Miguel Pera

Ricard Courtier

Maria Jose Gil

David Pares

Sonia Puig

Montserrat Andreu

Luis Grande

Affiliations

Soon will be listed here.

Abstract

Background And Aims: Anorectal pressure studies have demonstrated internal anal sphincter (IAS) hypertonia in patients with chronic anal fissure. It is unknown however, if these changes in IAS function are associated with any abnormality in sphincter morphology. The first aim was to investigate the clinical characteristics and the manometric and endosonographic findings of the IAS in a cohort of patients with chronic anal fissure. The second aim was to investigate the association between these findings and the outcome with topical Glyceryl trinitrate (GTN) therapy.

Materials And Methods: All patients who presented with chronic anal fissure from November 1999 to May 2004 were included after failure of conservative therapy. Anorectal manometry and anal endosonography were performed before treatment with 0.2% GTN ointment twice daily was initiated. Patients were evaluated after 8 weeks.

Results: One hundred and twenty-four patients (66 women, mean age, 45.2 +/- 14.8 years) were included. Hypertonia of the IAS was found in 84 (68%) patients. The mean maximum IAS thickness was 3.6 +/- 0.76 mm (1.6-5.5). An abnormally thick IAS, adjusted by age, was observed in 113 (91.1%) patients. We found no correlation between resting pressure and IAS thickness (r = 0.074; p = 0.41). At 8 weeks, 52 patients (42%) had healed with complete symptoms resolution. No statistically significant differences were observed when clinical features and manometric and endosonographic findings were compared between healing and no-healing fissures.

Conclusion: The majority of patients with chronic anal fissure present an abnormally thick IAS. Clinical, manometric and endosonographic features had no association with outcome after GTN treatment.

Citing Articles

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