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  • Title: Ligation of the intersphincteric fistula tract in low transsphincteric fistulae: a new technique to avoid fistulotomy.
    Author: van Onkelen RS, Gosselink MP, Schouten WR.
    Journal: Colorectal Dis; 2013 May; 15(5):587-91. PubMed ID: 22974372.
    Abstract:
    AIM:   To date fistulotomy is still the treatment of choice for patients with a transsphincteric fistula passing through the lower third of the external anal sphincter, because it is a simple, effective and safe procedure with a minimal risk of incontinence. However, data suggest that the risk of impaired continence following division of the lower third of the external anal sphincter is not insignificant, especially in female patients with an anterior fistula and patients with diminished anal sphincter function. It has been shown that ligation of the intersphincteric fistula tract (LIFT) is a promising sphincter-preserving technique. Therefore, we questioned whether LIFT could replace fistulotomy in patients with a low transsphincteric fistula. METHOD: A consecutive series of 22 patients with a low transsphincteric fistula of cryptoglandular origin underwent LIFT. Continence scores were determined using the Rockwood Fecal Incontinence Severity Index. RESULTS:   Median follow-up was 19.5months. Primary healing was observed in 18 (82%) patients. In the four patients without primary healing, the transsphincteric fistula was converted into an intersphincteric fistula. These patients underwent subsequent fistulotomy with preservation of the external anal sphincter. The overall healing rate was 100%. Six months after surgery, the median incontinence score was not changed significantly. CONCLUSION:   Low transsphincteric fistulae can be treated successfully by LIFT, without affecting faecal continence. Division of the lower part of the external anal sphincter is no longer necessary in the treatment of low transsphincteric fistulae, which is essential for patients with compromised anal sphincters.
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