Table 3.

Selected descriptive data for cervical cerclage in women with bulging fetal membrane

Reference	n	GA at cerclage (weeks)	Duration from cervical cerclage to delivery
Without evaluation of intrauterine infection
Ochi, 1994 21	18a	16–25	35.2 ± 39.7 days
Althuisius, 2003 22	13	22.2 ± 3.3	54 ± 47 days
Daskalakis, 2006 4	29	18–26	8.8 weeks
Stupin, 2008 23	89	17–26	41 days
Schorr, 1996 24	42	22.5 (20.5–23.7)	30 (2–102) days
Ventolini, 2009 25	56	19.6 ± 3.2	9.1 weeks
Debby, 2007 26	24	16–27	9.3 ± 4.8 weeks
Khan, 2012 3	17	20.7 ± 4.0	11.65 ± 8.14 weeks
Nelson, 2009 5	18	21.3 ± 3.3	56.3 ± 46.4 days
Makino, 2004 27	17	22.9 ± 2.5	35.0 ± 41.3 days
With amniocentesis for evaluating intrauterine infection
Mays, 2000 20	11	21.8 ± 1.5	93.4 ± 33.1 days
Present study	34b	22.2 ± 7.1	44.8 ± 14.3 (1–118) days
	22c	23.6 ± 6.0	95.1 ± 5.4 (13–147) days

Data are expressed as mean ± standard deviations (ranges). GA, gestational age.

^aAmnioreduction before cerclage.

^bCerclage using only amniotic fluid glucose ≥15 mg/dL.

^cCerclage using both amniotic fluid glucose ≥15 mg/dL and neutrophil elastase <180 ng/mL.