TY - JOUR
T1 - Cervical funneling or intra-amniotic debris and preterm birth in nulliparous women with midtrimester cervical length less than 30 mm
AU - the Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal–Fetal Medicine Units (MFMU) Network
AU - Saade, G. R.
AU - Thom, E. A.
AU - Grobman, W. A.
AU - Iams, J. D.
AU - Mercer, B. M.
AU - Reddy, U. M.
AU - Tita, A. T.N.
AU - Rouse, D. J.
AU - Sorokin, Y.
AU - Wapner, R. J.
AU - Leveno, K. J.
AU - Blackwell, S. C.
AU - Esplin, M. S.
AU - Tolosa, J. E.
AU - Thorp, J. M.
AU - Caritis, S. N.
AU - Vandorsten, J. P.
AU - Moss, J.
AU - Salazar, A.
AU - Hankins, G.
AU - Olson, G.
AU - Jackson, A.
AU - Sutherland, C.
AU - Peaceman, A.
AU - Dinsmoor, M.
AU - Mallett, G.
AU - Senka, J.
AU - Johnson, F.
AU - Cline, D.
AU - Latimer, C.
AU - Frantz, S.
AU - Fyffe, S.
AU - Shubert, P.
AU - Gerwig, L.
AU - Milluzzi, C.
AU - Dalton, W.
AU - Russo, J.
AU - Myers, S.
AU - Waters, T.
AU - Dotson, T.
AU - Andrews, W.
AU - Northen, A.
AU - Sheppard, J.
AU - Grant, J.
AU - Allard, D.
AU - Hunt, J.
AU - Tillinghast, J.
AU - Bethelemy, M.
AU - Gardner, D.
AU - Plante, L.
N1 - Funding Information:
The authors thank Gail Mallett, R.N., B.S.N., C.C.R.C. and Cynthia Milluzzi, R.N. for protocol development and coordination between clinical research centers; Yinglei Lai, Ph.D. for statistical analysis; and Catherine Y. Spong, M.D. for protocol development and oversight. The project described was supported by grants from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) [HD21410, UL1 RR024153; UL1 TR000005; HD27869, HD27915, HD27917, HD34116, HD34208, 5UL1RR025764, HD36801, HD40500, HD40512, HD40544, M01 RR00080, UL1 RR024989 (NCRR), HD40545, HD40560, HD40485, HD53097, HD53118]. Comments and views of the authors do not necessarily represent views of the NICHD.
Publisher Copyright:
Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
PY - 2018/12
Y1 - 2018/12
N2 - Objective: To evaluate whether the presence of cervical funneling or intra-amniotic debris identified in the second trimester is associated with a higher rate of preterm birth (PTB) in asymptomatic nulliparous pregnant women with a midtrimester cervical length (CL) less than 30 mm (i.e. below the 10th percentile). Methods: This was a secondary cohort analysis of data from a multicenter trial in nulliparous women between 16 and 22 weeks' gestation with a singleton gestation and CL less than 30 mm on transvaginal ultrasound, randomized to treatment with either 17-alpha-hydroxyprogesterone caproate or placebo. Sonographers were centrally certified in CL measurement, as well as in identification of intra-amniotic debris and cervical funneling. Univariable and multivariable analysis was performed to assess the associations of cervical funneling and intra-amniotic debris with PTB. Results: Of the 657 women randomized, 112 (17%) had cervical funneling only, 33 (5%) had intra-amniotic debris only and 45 (7%) had both on second-trimester ultrasound. Women with either of these findings had a shorter median CL than those without (21.0 mm vs 26.4 mm; P < 0.001). PTB prior to 37 weeks was more likely in women with cervical funneling (37% vs 21%; odds ratio (OR), 2.2 (95% CI, 1.5–3.3)) or intra-amniotic debris (35% vs 23%; OR, 1.7 (95% CI, 1.1–2.9)). Results were similar for PTB before 34 and before 32 weeks' gestation. After multivariable adjustment that included CL, PTB < 34 and < 32 weeks continued to be associated with the presence of intra-amniotic debris (adjusted OR (aOR), 1.85 (95% CI, 1.00–3.44) and aOR, 2.78 (95% CI, 1.42–5.45), respectively), but not cervical funneling (aOR, 1.17 (95% CI, 0.63–2.17) and aOR, 1.45 (95% CI, 0.71–2.96), respectively). Conclusions: Among asymptomatic nulliparous women with midtrimester CL less than 30 mm, the presence of intra-amniotic debris, but not cervical funneling, is associated with an increased risk for PTB before 34 and 32 weeks' gestation, independently of CL.
AB - Objective: To evaluate whether the presence of cervical funneling or intra-amniotic debris identified in the second trimester is associated with a higher rate of preterm birth (PTB) in asymptomatic nulliparous pregnant women with a midtrimester cervical length (CL) less than 30 mm (i.e. below the 10th percentile). Methods: This was a secondary cohort analysis of data from a multicenter trial in nulliparous women between 16 and 22 weeks' gestation with a singleton gestation and CL less than 30 mm on transvaginal ultrasound, randomized to treatment with either 17-alpha-hydroxyprogesterone caproate or placebo. Sonographers were centrally certified in CL measurement, as well as in identification of intra-amniotic debris and cervical funneling. Univariable and multivariable analysis was performed to assess the associations of cervical funneling and intra-amniotic debris with PTB. Results: Of the 657 women randomized, 112 (17%) had cervical funneling only, 33 (5%) had intra-amniotic debris only and 45 (7%) had both on second-trimester ultrasound. Women with either of these findings had a shorter median CL than those without (21.0 mm vs 26.4 mm; P < 0.001). PTB prior to 37 weeks was more likely in women with cervical funneling (37% vs 21%; odds ratio (OR), 2.2 (95% CI, 1.5–3.3)) or intra-amniotic debris (35% vs 23%; OR, 1.7 (95% CI, 1.1–2.9)). Results were similar for PTB before 34 and before 32 weeks' gestation. After multivariable adjustment that included CL, PTB < 34 and < 32 weeks continued to be associated with the presence of intra-amniotic debris (adjusted OR (aOR), 1.85 (95% CI, 1.00–3.44) and aOR, 2.78 (95% CI, 1.42–5.45), respectively), but not cervical funneling (aOR, 1.17 (95% CI, 0.63–2.17) and aOR, 1.45 (95% CI, 0.71–2.96), respectively). Conclusions: Among asymptomatic nulliparous women with midtrimester CL less than 30 mm, the presence of intra-amniotic debris, but not cervical funneling, is associated with an increased risk for PTB before 34 and 32 weeks' gestation, independently of CL.
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U2 - 10.1002/uog.18960
DO - 10.1002/uog.18960
M3 - Article
C2 - 29155504
AN - SCOPUS:85055700851
SN - 0960-7692
VL - 52
SP - 757
EP - 762
JO - Ultrasound in Obstetrics and Gynecology
JF - Ultrasound in Obstetrics and Gynecology
IS - 6
ER -