Prior cone biopsy: Prediction of preterm birth by cervical ultrasound

Berghella, Vincenzo; Pereira, Leonardo; Gariepy, Aileen M.; Simonazzi, Giuliana

doi:10.1016/j.ajog.2004.06.087

Cited by 93 publications

(72 citation statements)

References 18 publications

(24 reference statements)

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“…Five studies (six publications) evaluated only women with a history of preterm birth 31,50 -54 , two studies evaluated women with a history of excisional cervical procedures for dysplasia (e.g. loop electrosurgical excision procedure (LEEP) or cone biopsy) 32,55 , one study examined women with uterine anomalies 56 and the remaining five studies evaluated a combination of high-risk women 34,57 -60 .…”

Section: Resultsmentioning

confidence: 99%

“…Two studies (184 women) presented data on women who had had an excisional procedure for cervical dysplasia (Table 5) 32,55 . One study presented data separately for LEEP, cryotherapy and cone biopsy 32 .…”

Section: Resultsmentioning

confidence: 99%

“…For the purposes of this review we used data from women who had had LEEP from this study. The other study presented data on women who had undergone a variety of excisional procedures (including LEEP, cold knife cone or laser cone), providing results for all excisional procedures, and for the individual procedures as well 55 . We included data from this study for all treatments in the main analysis, with information on women undergoing LEEP in a secondary analysis.…”

Section: Resultsmentioning

confidence: 99%

“…One study (of 64 women) evaluated women with uterine anomalies, finding that a cervical length of < 25 mm is predictive of spontaneous preterm birth at < 35 weeks' gestation (LR+ = 8.14; 95% CI, 3.12-21.25) 56 . 55 16 to 23 + 6 < 25 < 35 Berghella et al (2003) 57 14 to 23 + 6 < 20, < 25, < 30, < 35 < 35 To et al (2002) 53 12 to 23 GA, gestational age. GA, gestational age at time of ultrasound examination; n, sample size; N, number of studies.…”

Section: Resultsmentioning

confidence: 99%

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Transvaginal sonographic measurement of cervical length to predict preterm birth in asymptomatic women at increased risk: a systematic review

Crane

Hutchens

2008

Ultrasound in Obstet & Gyne

230

161

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Objectives To estimate the ability of cervical length measured by transvaginal ultrasonography in asymptomatic high-risk women to predict spontaneous preterm birth. January 1980 and July 2006, using the keywords 'transvaginal ultrasonography' or ('cervix' and ('ultrasound' or 'ultrasonography' or 'sonography')); and ('preterm' or 'premature') and ('delivery' or 'labour/labor' or 'birth') Methods MEDLINE, PubMed, EMBASE and the Cochrane Library were searched for articles published in any language between

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Transvaginal sonographic measurement of cervical length to predict preterm birth in asymptomatic women at increased risk: a systematic review

Crane

Hutchens

2008

Ultrasound in Obstet & Gyne

230

161

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“…[16][17][18][19] Cervical length measured by transvaginal ultrasonography has been shown to predict preterm birth in these asymptomatic high-risk women. 13,[20][21][22][23][24][25][26][27][28] Some studies have suggested that cervical length shortening by transvaginal ultrasonography may further increase the risk of preterm birth, 26,[29][30][31][32][33][34] whereas other studies have not noted this association. [35][36][37] There is a limited information regarding the benefit of follow-up cervical length ultrasound in high-risk asymptomatic women found to have a short cervical length.…”

Section: Introductionmentioning

confidence: 85%

Follow-up cervical length in asymptomatic high-risk women and the risk of spontaneous preterm birth

Crane

Hutchens

2010

J Perinatol

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Objective: To determine whether further cervical length shortening by transvaginal ultrasonography in asymptomatic high-risk women with a short cervical length adds additional predictive value for spontaneous preterm birth and perinatal morbidity.Study Design: Women with a history of spontaneous preterm birth, loop electrosurgical excision procedure, cone biopsy or uterine anomaly, who were pregnant with singleton gestations and were found by transvaginal ultrasonography to have a cervical length <3.0 cm at 20 to 28 weeks' gestation, and who underwent a follow-up cervical length within 3 weeks were evaluated, comparing those with further cervical length shortening (>10%) to those without further shortening. Primary outcomes were spontaneous preterm birth <35 weeks' gestation and perinatal morbidity. Secondary outcomes included spontaneous preterm birth <37 weeks, <34 weeks, <32 weeks, birth weight <2500 g, maternal and other neonatal outcomes.Result: Compared with women without further cervical shortening, those with further shortening were found by univariate analyses to have higher rates of spontaneous preterm birth <35 weeks (34.8 versus 8.5%, P ¼ 0.014), <37 weeks (56.5 versus 21.3%, P ¼ 0.003), <34 weeks (30.4 versus 2.1%, P ¼ 0.001), <32 weeks (21.7 versus 0%, P ¼ 0.003), birth weight <2500 g (60.9 versus 17.0%, P<0.0001), neonatal intensive care unit admission (47.8 versus 17.0%, P ¼ 0.006) and composite perinatal morbidity (43.5 versus 14.9%, P ¼ 0.009). Logistic regression revealed the only independent predictors of spontaneous preterm birth <35 weeks were further cervical length shortening (adjusted odds ratio (aOR) 5.73; 95% confidence interval (CI) 1.31 to 24.43) and gestational age at short cervical length (aOR 0.95; 95% CI 0.91 to 0.99). Conclusion:Further cervical length shortening in asymptomatic high-risk women with a short cervical length is an important independent predictor of spontaneous preterm birth <35 weeks and perinatal morbidity.

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