The Use of Mersilene Tape in Transabdominal Cerclage

Abstract

Aim: The purpose of this article is to show the use and utility of mersilene tape in medical procedures, such as transabdominal cerclage (TAC). Material and methods: Based on their biomechanical properties, we present our experience with mersilene tape used as treatment for cervical incompetence. Cervical insufficiency or cervical incompetence is defined as asymptomatic cervical shortening and dilatation with the absence of detectable uterine contractions. The mechanical properties of cervical tissue are derived from its extracellular matrix and its most important constituent the fibrillar collagen, alongside other constituents such as proteoglycans, hyaluronic acid, elastin, and water. In the absence of the uterine contractions, the cervix is loaded by intrauterine pressure (including the weight of the growing fetus and amniotic sac), the gravity as well as passive pressure from the uterine wall. These forces also depend on the support action of pelvic floor structures and abdominal wall. The static load resulting from the combination of uterine growth, hydrostatic pressure and gravity seems to be the dominant determinants that cause cervical shortening. The placement of the mersilene tape acts as a barrier between the intrauterine pressure and the cervix. The main advantage of the TAC procedure is the placement of the nonabsorbable suture (mersilene tape at the level of the internal os, avoiding the placement of a vaginal foreign body and subsequently increasing the risk of ascending lower genital tract infection, decreased incidence of slippage, and the ability to leave the stitch in place between pregnancies. Results: The follow-up was without complications regarding the pregnancies treated with transabdominal cerclage. None of the pregnancies terminated prematurely as related to the presence of the tape, but it necessitates to be performed a caesarean section for delivery. Conclusions: Mersilene tape is safe and useful in different medical procedures, including transabdominal cerclage during pregnancy.

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