Sonographic prediction of shoulder dystocia in infants of diabetic mothers

Cohen, Bruce; Penning, Stephanie; Major, Carol; Ansley, Deborah; Porto, Manuel; Garite, Thomas J.

doi:10.1016/0029-7844(96)00067-1

Cited by 58 publications

(43 citation statements)

References 2 publications

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“…Med. 25 (1997) Brought to you by | University of Arizona Authenticated Download Date | 6/8/15 12:15 AM cm has a positive predictive value for shoulder dystocia of only 30% but a negative predictive value for no shoulder dystocia of 100% among diabetic patients [4]. Since the correlation between the HC and the BAD is based on only 5 patients, a lack of a statistically significant difference could be due to a small sample size.…”

Section: Discussionmentioning

confidence: 99%

The neonatal bisacromial diameter: a prenatal sonographic evaluation

Winn¹,

Holcomb²,

Shumway³

et al. 1997

Jpme

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This study was designed to determine which fetal ultrasonographic parameter best correlates with the neonatal bisacromial diameter (BAD). The latter is defined as the distance between the two acromions of the scapulae. The study population included fifty-four uncomplicated singleton pregnant patients whose infants with birth weights of more than 3000 grams were delivered within a week of ultrasound examinations. Six fetal biometric parameters: circumferences of the chest, abdomen, head, arm, and thigh, and estimated fetal weight were obtained by ultrasonography and were compared with the BAD. The best predictor of the neonatal bisacromial diameter was the fetal chest circumference (r = 0.67, p = 0.003) followed by the arm circumference, (r = 0.59, p = 0.03). The fetal chest circumference correlates well with the neonatal shoulder girth as reflected by the neonatal bisacromial diameter.

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Section: Discussionmentioning

confidence: 99%

The neonatal bisacromial diameter: a prenatal sonographic evaluation

Winn¹,

Holcomb²,

Shumway³

et al. 1997

Jpme

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“…2 Using a definition of macrosomia of 4500 g, existing formulas require that an estimated fetal weight must exceed 4800 g for the fetus to have a greater than 50% chance of being macrosomic. Cohen and colleagues 9 proposed a formula that subtracts the biparietal diameter (BPD) from the abdominal diameter (AD) (abdominal circumference divided by 3.14). 8 Several investigators have proposed innovative formulas to detect fetuses at risk of shoulder dystocia.…”

Section: Macrosomiamentioning

confidence: 99%

Shoulder Dystocia

Gagnon¹

2009

Postgraduate Obstetrics & Gynecology

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Learning Objectives: After reading this issue, the participant should be able to: 1. Recall risk factors for shoulder dystocia. 2. Describe antenatal counseling of patients at-risk for shoulder dystocia. 3. Explain appropriate management of shoulder dystocia. The continuing education activity in Postgraduate Obstetrics & Gynecology is intended for obstetricians, gynecologists, and other health care professionals with an interest in the diagnosis and treatment of obstetric and gynecological conditions.

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“…A discrete aberrant fetal growth pattern has been described in which the trunk is disproportionately large relative to the head, and some studies have implicated a large thorax/head size ratio as a risk factor for shoulder dystocia, Erb palsy, and various neonatal morbidities [4][5][6][7][8][9]. Modanlou et al even recommended attempting to identify those fetuses with disproportionately large trunks by ultrasound and offering cesarean delivery to their mothers [10].…”

Section: Introductionmentioning

confidence: 99%

Perinatal consequences of disproportionate fetal trunk growth

Cavalieri¹,

Laroche²,

Cohen³

2012

OJOG

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Objective: To identify the impact of an abnormally large neonatal chest circumference relative to head circumference on labor and neonatal morbidity. Methods: We used a retrospective cohort design to study 54 obstetric cases in which the neonatal thoracic circumference was ≥2.5 cm greater than that of the head. For each case we sought controls with a smaller thorax-head circumference difference. Ninety-seven controls were matched with their respective cases for birth weight, parity, maternal body mass index (BMI), and maternal ethnicity. Results: Cases had significantly smaller heads and larger trunks than controls (P < 0.0001). Cases were twice as likely (39% vs 19%, P = 0.007) to require admission to the neonatal intensive care unit. There was no significant difference between cases and controls in the frequency of shoulder dystocia, long second stage, or long deceleration phase of labor. However, compound presentations occurred more frequently in the cases than in controls (5.5% vs 0%, P = 0.044). Conclusion: Babies with disproportionately large trunk growth were at risk for requiring neonatal intensive care and for compound presentation.

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Sonographic prediction of shoulder dystocia in infants of diabetic mothers

Cited by 58 publications

References 2 publications

The neonatal bisacromial diameter: a prenatal sonographic evaluation

The neonatal bisacromial diameter: a prenatal sonographic evaluation

Shoulder Dystocia

Perinatal consequences of disproportionate fetal trunk growth

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