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PubMed2005

[Analysis of risk factors for perinatal brachial plexus palsy].

OBJECTIVES AND DESIGN: Risk factors of obstetrical brachial plexus palsy include: (1) large birth weight, (2) shoulder dystocia and prolonged second stage of labour, (3) instrumental vaginal delivery (forceps delivery, vacuum extraction), (4) diabetes mellitus and mother's obesity, (5) breech presentation, (6) delivery and infant with obstetrical brachial plexus palsy in antecedent delivery. The purpose was analysis of the classical risk factors for brachial plexus palsy based on our own clinical material. MATERIAL AND METHODS: Clinical material consists of 83 children with obstetrical brachial plexus palsy treated at the Department of Trauma and Hand Surgery (surgically--54, conservatively--29). Control group consists of 56 healthy newborns. Data recorded included: birth weight, body length, head and chest circumference, Apgar test at 1 min., type of brachial palsy and side affected, type of birth, presentation, duration of delivery (II stage), age of mother, mother's diseases, parity. RESULTS: The infants treated surgically have had a significantly higher birth weight, body height, head and chest circumference, in compression with control group and group treated conservatively. The differences were statistically important. Shoulder dystocia occurred in 32.9% of all vaginal delivery. Instrumental vaginal delivery was observed in 11.3% and breech presentation in 4.9% cases. There were no incidences of obstetrical brachial plexus palsy recurrence. Diabetes mellitus and mother's obesity was found in 3 cases. CONCLUSIONS: (1) Fetal macrosomia is the important risk factor of the obstetrical brachial plexus palsy. (2) Obstetrical brachial plexus palsy may occur also in the absence of the classical risk factors.

Birth Injuries↗
PubMed1988

Traumatic injury in large-for-date infants.

The risk of traumatic injury and low Apgar score was studied in 473 infants with a birth weight of 4500 g or more at term (LFD) and 473 infants with normal weight (NFD, birth weight +/- 1 SD of mean for the respective gestational age). The LFD group comprised 3.2% of all infants delivered during a 5-year period. Traumatic injuries were observed in 8.0% of the LFD versus 0.6% of the NFD group. The injuries in the LFD group were 28 fractured clavicles, four fractured humerus and 12 brachial plexus injuries. Six of the LFD infants had multiple injuries. The injuries in the NFD group were three fractured clavicles. All infants with traumatic injuries were delivered vaginally. Contributory obstetrical factors for traumatic injury were forceps, post-term pregnancy and vacuum extraction. High birth weight was correlated to a low Apgar score at one minute, as also was post-term pregnancy.

Birth Injuries↗