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Neonatal brachial plexus palsy: an unpredictable injury
Valerie Donnelly1, Adrienne Foran, John Murphy
1Department of Obstetrics and Paediatrics, National Maternity Hospital, Dublin, Ireland.
American Journal of Obstetrics and Gynecology
|November 20, 2002
Summary
Obstetric brachial plexus injury occurs in 1.5/1000 births, with 19% persisting at 1 year. Risk factors and partographic analysis do not reliably predict this neonatal nerve injury before delivery.
Area of Science:
- Neonatal neurology
- Obstetric complications
- Pediatric neurosurgery
Background:
- Brachial plexus paralysis is a significant cause of neonatal morbidity.
- Understanding its incidence and predictors is crucial for clinical management.
Purpose of the Study:
- To determine the incidence and persistence of disability from obstetric brachial plexus injury.
- To evaluate predictability using maternal characteristics and partographic analysis.
Main Methods:
- A cohort study identified infants with brachial plexus injury (1994-1998) and followed them for at least 1 year.
- Maternal and obstetric details were compared to matched controls.
- Partographs were reviewed by blinded obstetricians, and risk scores were assigned.
Main Results:
- The incidence was 1.5 per 1000 births, with 19% showing persistent neurologic deficit at 1 year.
- Risk factor profiles and partographic assessments showed limited predictive value for brachial plexus injury.
- Obstetrician assessments had low sensitivity and positive predictive values.
Conclusions:
- Obstetric brachial plexus injury is not reliably predictable before delivery using current risk scoring or partographic methods.
- Further research may be needed to identify reliable predictive markers.