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Results for “Extraction, Obstetrical”

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PubMed1980

Fetal EEG during vacuum extraction delivery with a special plastic ventouse.

A vacuum extractor cup made of plastic with built-in percutaneous silver electrodes for fetal EEG and ECG registration is described. In an experimental set up the mechanical properties of the cup were tested. The cup electrodes were tested on a 1-month-old infant and a satisfactory recording was obtained. During delivery a technically acceptable fetal EEG was recorded between but not during tractions. Comparison of the EEG before and after two pulls showed a generalized reduction of amplitude and a decrease of rhythmic slow wave activity. The results indicate that a plastic cup with EEG electrodes might be a useful tool in studying fetal cerebral functions during delivery by vacuum extraction.

Electroencephalography↗
PubMed2004

Vacuum-assisted delivery: a review.

In 1992, the number of vacuum deliveries overtook the number of forceps deliveries performed in the USA. Most clinical experiences report that the vacuum is safe for both the fetus and the mother when used properly. Correct cup placement on the fetal head and knowing when to abandon the procedure, appear to be key components to conducting a safe and successful vacuum delivery. However, the focus and training that has been afforded forceps deliveries in the past has not been given to the vacuum, because of its perceived 'ease of use'. This apparent lack of understanding has led to increasing numbers of complications associated with its use. In addition, because forceps are being taught less in training programs, fewer and fewer physicians are being trained in the essential skills of operative vaginal delivery. This review is intended to emphasize the correct techniques and skills of vacuum-assisted vaginal delivery in an attempt to increase the success and decrease the complications associated with its use.

Birth Injuries↗
PubMed1977

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↗
PubMed1999

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↗
PubMed1964

SHADOW OR SUBSTANCE.

Explore the source record for details and available documents.

Extraction, Obstetrical↗
PubMed1987

Vacuum extraction versus forceps delivery: indications and complications, 1979 to 1984.

Two hundred fifty-six vacuum extractions and 300 randomly chosen forceps deliveries were analyzed retrospectively. Vacuum extraction use increased from 0.3 to 3.1%, while forceps use declined from 10.1 to 4.9% over a five-year period. No differences were found in indications for vacuum extraction and forceps, but the preapplication position differed (occiput posterior or transverse in 81.2% in the vacuum group and 27% in forceps patients). Preapplication station also differed, with 59.8% of vacuum extraction at +1 or higher stations, compared with 9% of forceps. Under these conditions we found less maternal trauma, similar failure rates (3.9 versus 2%), and no difference in maternal morbidity. There was a higher incidence of shoulder dystocia and neonatal jaundice in the vacuum group, but cephalohematoma frequency did not differ significantly (3.9% vacuum extraction, 4.3% forceps). Cosmetic injuries (ecchymoses, abrasions) were more likely with vacuum extraction than with forceps (44.1 versus 29.5%). One death occurred in each group. Vacuum extraction replaced midforceps in our institution in the study period. We consider vacuum extraction a useful technique to teach house staff in view of today's decreasing instrumental delivery rate.

Birth Injuries↗
PubMed1978

[Modification of the vacuum extraction device (author's transl)].

The article describes a bell-shaped vacuum extractor with a rigid tube neck connected via a ball and socket joint. The advantages of this device over the "classical" device described by Malmström (2), are as follows: Easier insertion of the bell adjusted at an angle of 90 degrees, improved pushing-up of the bell for fastening to the head when this is still in elevated position, better placing of the bell at the desired location, better manipulation into the desired direction of pull, possibility of pushing up the anterior part in case of late cesarean section, and better sealing of the suction tube at the point of transition from the tube to the flexible hose. Another improvement concerns the adhesion, achieved by means of ring-shaped notches on the inside of the bell.

Cesarean Section↗