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Outcome of forceps delivery versus vacuum extraction--a review of 200 cases.

The outcome of 100 patients undergoing instrumental delivery with vacuum extractor is compared with that of 100 women delivered with the aid of obstetric forceps. Forceps deliveries were more commonly associated with maternal birth canal trauma (including episiotomy) whilst vacuum extractor carried higher odds of the neonate developing jaundice. Apart from these, there were no significant differences between these two groups in terms of maternal morbidity, neonatal trauma and morbidity and ultimate outcome (success with the type of instrument used). We conclude that with meticulous handling of the instrument and with an appropriate decision on the indication and the type of instrument used, the maternal and neonatal outcome could be equally good with the use of either instrument.

Adult↗

Neonatal and prospective follow-up study of infants delivered by vacuum extraction (VE).

Forty infants delivered by vacuum extraction have been studied in the neonatal period--neurological examination, neonatal CSF-examinations, skull X-ray examination, transillumination and sonoencephalography --and at 14 months of age--developmental and behavioural evaluation, neurological examination, skull X-ray examination, sonoencephalography and electroencephalography. Two infants died in the neonatal period but in both cases a life-threatening situation of the fetus required immediate delivery. CSF cytological signs of haemorrhage were observed in 42% of the 26 infants who had a successful lumbar tap, compared to 10% found in normal deliveries. The result of the neonatal neurological study did not differ from that in a control group. The result of the skull X-ray examination and sonoencephalography were also within normal limits. In the follow-up study behavioural problems were found in 25%, but otherwise very few abnormalities were found. The deviatiosn found do not for the present indicate any later signs of brain lesions. It is concluded that this prospective study has shown that VE-delivery in fullterm babies seem to imply no risk fo serious cerebral sequelae. Further follow-up studies at a later age in order to evaluate the incidence of so-called minimal brain damage in VE-delivered children are required.

Adult↗

The 'sacral hand wedge': a cause of arrest of descent of the fetal head during vacuum assisted delivery.

During a study of 108 vacuum assisted deliveries, a fetal hand was detected in the pelvic space between the head and maternal sacrum in seven of the procedures. The larger presenting diameters resulting from the compound fetal presentations were reflected in a greater number of pulls and higher traction forces recorded during the deliveries. In all cases, extraction of the hand facilitated the completion of birth without causing serious injury to the fetus or maternal perineum. It is recommended that a digital examination to detect the presence of a fetal hand in the sacral space should become a part of standard vacuum delivery practice.

Birth Weight↗