OBJECTIVE: To determine whether an amnioreduction via bulging membranes (AVBM) and cerclage could be useful in 17 women with singleton gestations demonstrating hourglass membranes bulging out of the cervix or vaginal orifice. METHODS: We used the following selection criteria for AVBM under ultrasonographic guidance using a peit needle because of undetectable cervical edges: (type 1) the bag of membranes protruded beyond the inlet of the vagina; (type 2) the bag of huge membranes completely occupied the vagina. RESULTS: Eight patients (three cases of type 1 and five of type 2) were successful in AVBM and cerclage at 22.1 +/- 2.2 weeks gestation (range 19-24 weeks), and mean birth weight was 1,048.1 +/- 801.6 g (range 302-2,688 g). Although the diameter of the forewater by transabdominal ultrasonography (cm) was higher than in the nine patients without AVBM (6.7 +/- 1.1 versus 4.1 +/- 0.7 cm, p = 0.002), the prolongation of pregnancy (32.9 +/- 46.2 days; range 2-133 days) was the same as in patients without AVBM (36.9 +/- 39.3 day, p = 1.000). CONCLUSION: It is important that every effort should be made to perform cervical cerclage at or before 26 weeks of gestation, even in women with type 1 or 2.
OBJECTIVE: To determine whether an amnioreduction via bulging membranes (AVBM) and cerclage could be useful in 17 women with singleton gestations demonstrating hourglass membranes bulging out of the cervix or vaginal orifice. METHODS: We used the following selection criteria for AVBM under ultrasonographic guidance using a peit needle because of undetectable cervical edges: (type 1) the bag of membranes protruded beyond the inlet of the vagina; (type 2) the bag of huge membranes completely occupied the vagina. RESULTS: Eight patients (three cases of type 1 and five of type 2) were successful in AVBM and cerclage at 22.1 +/- 2.2 weeks gestation (range 19-24 weeks), and mean birth weight was 1,048.1 +/- 801.6 g (range 302-2,688 g). Although the diameter of the forewater by transabdominal ultrasonography (cm) was higher than in the nine patients without AVBM (6.7 +/- 1.1 versus 4.1 +/- 0.7 cm, p = 0.002), the prolongation of pregnancy (32.9 +/- 46.2 days; range 2-133 days) was the same as in patients without AVBM (36.9 +/- 39.3 day, p = 1.000). CONCLUSION: It is important that every effort should be made to perform cervical cerclage at or before 26 weeks of gestation, even in women with type 1 or 2.
Authors: Max Mönckeberg; Rafael Valdés; Juan P Kusanovic; Manuel Schepeler; Jyh K Nien; Emiliano Pertossi; Pablo Silva; Karla Silva; Pía Venegas; Ulises Guajardo; Roberto Romero; Sebastián E Illanes Journal: J Perinat Med Date: 2019-07-26 Impact factor: 2.716