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Controversies in the use of the vacuum extractor.

Operative pelvic delivery is an important component of obstetrical care. Vacuum extraction assumes a prominent role, and when appropriately performed, has been proven safe and effective. However, controversies continue to exist. Historical background and review of the latest literature are presented to delineate these issues and promote consensus and direct research to continue to provide the safest means of delivery for the mother and baby.

Female↗

Neonatal and maternal complications among pregnant women delivered by vacuum extraction or forceps extraction.

A historical cohort study was used to analyse the maternal and neonatal complications among pregnant women delivered by vacuum or forceps extraction at Rajavithi Hospital, 1994. The maternal complications (third and fourth degree of perineal tear and postpartum hemorrhage) were statistically significant more often in the forceps group than in the vacuum extraction group. But fetal complications (neonatal hyperbilirubinemia, low Apgar scores (< 7) at 1 and 5 minutes and the transfer to NICU) were statistically significant more often in the vacuum extraction group than in the forceps group.

Adolescent↗

Intracranial haemorrhage as initial presentation of severe haemophilia B: case report and review of Mayo Clinic Comprehensive Hemophilia Center experience.

A neonate who had intracranial haemorrhage (ICH) at birth received a diagnosis of severe haemophilia B at 6 months of age. ICH had been the initial presentation of his bleeding disorder. His family history was negative for haemophilia. Review of our institutional experience as well as the literature indicates that intracranial bleeding as the initial presentation of haemophilia is rare.

Factor IX↗

Experience with the Bamberg obstetrical forceps.

The design and use of a divergent obstetrical forceps, which was developed at the Staatliche Frauenklinik und Hebammenschule in Bamberg by Sipli and Krone are presented. The major advantage associated with the use of this instrument is that it permits the exertion of a limited constant application force (max 300 g) on the fetal head. Thus, compression injuries are effectively prevented and slippage of the forceps with resultant trauma is precluded. The Bamberg forceps was evaluated at the Frauenklinik und Poliklinik der Technischen Universität München and at the Staatliche Frauenklinik und Hebammenschule Bamberg, Federal Republic of Germany. An evaluation of 483 cases where this forceps was used is presented. No serious complications directly attributable to the use of this instrument could be documented.

Apgar Score↗

Continuous epidural anaesthesia with a low frequency of instrumental deliveries.

The results of 204 cases of regional analgesia by means of continuous epidural block during labour and delivery are reported. The frequency of instrummental intervention using forceps or the vacuum extractor is low, less than 15% for primi- and multi-gravidas combined, although pathological conditions were recognized prior to blockade in almost one-third of the parturients. Moreover, the frequency of emergency Caesarean section has dropped significantly since epidural anaesthesia was introduced into the clinic. The 1 min Apgar scores of babies born to mothers given epidural anaesthesia are similar to those of babies born to mothers receiving conventional analgesic agents. The amount of blood lost by mothers given epidural anaesthesia was, on average, 15% less than in a control group. It is concluded that the essential feature of our technique of administering continuous regional analgesia is a selective block of small pain fibres with the deep tactile sensations largely intact, and the motor pathways virtually unaffected. This has been achieved using small doses of bupivacaine 0.25% concentration and meticulous observation of the individual patient.

Anesthesia, Epidural↗