Automatic Oxytocin Infusion Equipment for Induction of Labour

Francis, James; Turnbull, A. C.; Thomas, F. F.

doi:10.1111/j.1471-0528.1970.tb03576.x

Cited by 54 publications

(16 citation statements)

References 15 publications

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“…If the early morning 'inducing' dose of prostaglandin failed to initiate uterine contractions by 10.00 hours, then the membranes were ruptured and an intravenous infusion of syntocinon was commenced, using the automatic infusion method described by Francis, Turnbull and Thomas (1970). Continuous fetal heart monitoring was used in all labours.…”

Section: Methodsmentioning

confidence: 99%

An evaluation of the Bishop scoring system in relation to a method of induction of labour by intra-vaginal prostaglandin

Houghton

1982

Postgraduate Medical Journal

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Section: Methodsmentioning

confidence: 99%

An evaluation of the Bishop scoring system in relation to a method of induction of labour by intra-vaginal prostaglandin

Houghton

1982

Postgraduate Medical Journal

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“…The rest did not because of fear or uncertainty of outcome. The decision to induce in twin gestations has been plagued with fear and uncertainty [28][29][30][31].…”

Section: Discussionmentioning

confidence: 99%

Twin gestation: Is induction of labor possible in highly selected cases?

Mbu¹,

Fouedjio²,

Fouelifack³

et al. 2012

OJOG

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Induction of labor has been in practice for several decades but the decision to induce labor in multifetal gestations has not been accepted by many practitioners in contemporary obstetrics. The aim of this study was to compare maternal and fetal outcomes among women with uncomplicated twin gestations who were induced at term and those who were not. It was a cross-sectional analytic study that lasted ten years, (1 st January 2000 to 31 st December 2009 inclusive) at the maternity of the central hospital, Yaounde, Cameroon. 158 women were enrolled, 79 were induced and 79 went into labor spontaneously. Maternal and fetal outcomes, duration of labor, the prevalence of caesarean section were compared in the two groups. The average age of the women in the groups was 26, 75 ± 3.65 years (range 15 -41 years). For those who were induced, indication was premature rupture of membranes in 44 (56%) of cases. The characteristics of induced and none induced women were similar, except for the number of antenatal consultations (P ≤ 0.001). There was a significant difference in the duration of labor in the two groups (6 hrs versus 9, 75 hrs; P ≤ 0.001). The overall rate of vaginal delivery in the two groups was 87, 97% (n = 139), 88.87% in the group that was induced versus 86.07% in the group that labor was spontaneous (OR 1, 22; 95% IC 0, 51-2, 92; P ≤ 0.90). With respect to primary outcomes, there were no statistically significant differences between the group that labor was induced and that which labor was spontaneous. The prevalence of caesarean delivery was similar in the two groups (10%, 12% vs 13%, 92%; OR 0%, 7%; 95% IC 0, 27-1, 85; P ≤ 0.50). The main indications for caesarean section were acute fetal distress and failed induction. The first and fifth minute APGAR scores less than 7 in the first twins delivered in the two groups were similar. The 312 children delivered in both arms did not show any complications at birth. However, there were 3 neonatal deaths (1 vs 2). There were no cases of uterine rupture or maternal deaths among the 156 women. Induction of labor may be proposed to women with uncomplicated term twin gestations with specific indications. Induction in these highly selected cases does not impute any additional risks but close monitoring of labor is very necessary.

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“…Although originally given as a constant low dose infusion at less than 10 mU/min, this has been replaced by titrated doses, determined by the intensity and frequency of uterine contractions assessed clinically by staff adjusting the infusion rate using mechanical pumps or electronic drip counters. Alternatively, automatic infusion pumps governed by intrauterine contraction pressures using solid-state pressure transducers have been used providing an automatic increase or decrease in rate with the theoretical avoidance of overdosage (Francis et al 1970). These are usually set at a starting rate around 1-4 mU/min and increase variably (Lamont et al 1991), arithmetically (Kurup et al 1991) or logarithmically (Toaff et al 1978) at 15-30 min intervals often to a maximum of around 32 mU/min, or until satisfactory labour has been established; occasionally higher rates may be required.…”

Section: Oxytocinmentioning

confidence: 99%

Induction of labour at the start of the new millennium

Mackenzie¹

2006

Reproduction

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Around 20% of all deliveries are preceded by labour induction, a proportion that has not varied dramatically over recent years. Fetal death was the only indication for labour induction centuries ago, while this is now a very rare indication, with prolonged pregnancy and maternal hypertensive disorders being the major indications for the last 50-60 years. Techniques for inducing labour have also changed from dietary delicacies and verbal threats giving way to physical stimulation mainly achieved by cervical stretching and amniotomy and more recently to sophisticated pharmacological manipulation using oxytocin and prostaglandins, based on our expanding knowledge of the physiological processes involved in spontaneous parturition. Relaxin, antiprogestins, nitric oxide as well as complementary medicines have also been explored in recent years. Successful induction is, however, still not guaranteed and there has been increasing emphasis during the past decade on exploring strategies for identifying the probability of success. Measurement of fetal fibronectin in cervical mucus, maternal serum nitrite/nitrate concentrations, ultrasound delineation of cervical form and electrical impedance measurements across the cervix are all being investigated. Safety, success, and patient satisfaction continue to be the major objectives with economic evaluations now becoming a significant factor in the search for the ideal induction method.

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Automatic Oxytocin Infusion Equipment for Induction of Labour

Cited by 54 publications

References 15 publications

An evaluation of the Bishop scoring system in relation to a method of induction of labour by intra-vaginal prostaglandin

An evaluation of the Bishop scoring system in relation to a method of induction of labour by intra-vaginal prostaglandin

Twin gestation: Is induction of labor possible in highly selected cases?

Induction of labour at the start of the new millennium

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