3 results for Paterson-Brown, S

  • A prospective randomised controlled trial of the Kiwi Omnicup versus conventional ventouse cups for vacuum-assisted vaginal delivery - Reply

    Groom, Katie; Paterson-Brown, S (2006-08)

    Journal article
    The University of Auckland Library

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  • Changing trends in operative delivery performed at full dilatation over a 10-year period.

    Loudon, JA; Groom, Katie; Hinkson, L; Harrington, D; Paterson-Brown, S (2010-05)

    Journal article
    The University of Auckland Library

    This study was a systematic anonymous audit of routinely collected data in a tertiary referral obstetric unit in London and included data from deliveries over a 10-year period (1992-2001). Data for all caesarean sections at full dilatation were collected, including maternal demographic information, the grade of operating clinician, and the place of delivery. Neonatal data collected included birth weight and umbilical arterial pH. No changes in the demographics of the population were observed. No increased rates of malposition were observed. Birth weight did not change. Increasing preference for the ventouse over forceps (ratio 0.2:1 to 1.9:1) over the decade (p = 0.002) was seen with an increased tendency to conduct the delivery in the operating theatre (p = 0.0025). Rate of caesarean section at full dilatation increased (2% by 2001). Increasing failures of operative vaginal delivery, especially using the ventouse (regression coefficient p = 0.025), and reduced attempts at instrumentation (regression coefficient p = 0.002) were seen.

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  • A prospective randomised controlled trial of the Kiwi Omnicup versus conventional ventouse cups for vacuum assisted vaginal delivery.

    Groom, Katie; Jones, BA; Miller, N; Paterson-Brown, S (2006)

    Journal article
    The University of Auckland Library

    Objective??? To evaluate the performance and safety of the Kiwi Omnicup and compare it to conventional vacuum cups in routine clinical practice. Design??? A randomised controlled trial of the Kiwi Omnicup versus conventional vacuum cups. Setting??? Queen Charlotte's and Chelsea Hospital, a tertiary referral hospital in London from April 2001 to March 2004. Population??? Women requiring assisted vaginal delivery by ventouse. Methods??? Women were randomised to the Kiwi Omnicup (n = 206) or conventional vacuum cups (n = 198). Data regarding maternal demographics, labour, mode of delivery and maternal and neonatal outcome were collected. Main outcome measures??? Failure of delivery with instrument of first choice. Results??? The Kiwi Omnicup was less successful at delivery with instrument of first choice than the conventional ventouse, failure rate 30.1 versus 19.2% (RR 1.58; 95% CI 1.10???2.24). It was associated with a greater number of cup detachments (mean 0.68 compared with 0.28, with 44% compared with 18% having at least one detachment [P < 0.0001]). There was no difference in the incidence of severe maternal trauma, and there were no cases of serious neonatal injury. Conclusions??? The Kiwi Omnicup is less successful than conventional ventouse in achieving vaginal delivery, but its safety profile is comparable.

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