International journal of obstetric anesthesia
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Int J Obstet Anesth · Apr 1997
Use of sublingual glyceryl trinitrate as a supplement to volatile inhalational anaesthesia in a case of uterine inversion.
We present a case of uterine inversion in which glyceryl trinitrate was used via the sublingual route, as opposed to the intravenous route, in association with volatile inhalational anaesthesia in order to achieve relaxation of the uterus. A transient, but significant, hypotensive response occurred, which was easily corrected with a colloid infusion and vasopressors. Sublingual glyceryl trinitrate is easily administered, has a fast onset of action and may have a role in situations where rapid relaxation of the uterus is required.
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Int J Obstet Anesth · Apr 1997
Randomized Controlled Trial Clinical TrialPatient-controlled analgesia following caesarean section: a comparison of morphine and meptazinol.
Forty-eight women were investigated in a prospective double-blind study and randomised to receive intravenous patient-controlled analgesia (PCA) with meptazinol or morphine following elective caesarean section. Women received PCA boluses of 1 mg morphine or 10 mg meptazinol with no background infusion. ⋯ There was no statistically significant difference in pain scores (P = 0.47) or the incidence of side-effects (nausea/vomiting P = 0.076, sedation P = 0.63) between the two drugs. Meptazinol is more expensive and offers no clinical advantages in this group of patients.
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Int J Obstet Anesth · Apr 1997
Anatomy of the lumbar epidural region using magnetic resonance imaging: a study of dimensions and a comparison of two postures.
Many techniques used to investigate the epidural region may alter the anatomy. Magnetic resonance imaging (MRI) has been introduced as a non-invasive diagnostic technique. The aim of this study was to investigate the anatomy of the lumbar epidural region using MRI, studying the morphology, the dimensions and the modification that may result from a change of position. ⋯ The circumferentially and metamerically segmented compartments of the epidural space were clearly noted and measured. Ligamenta flava seem to be thinner in younger than in older subjects. This may partly explain a reduced loss of resistance sometimes perceived in obstetric patients.
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We wished to determine whether immunosuppression and/or acceleration of human immunodeficiency virus (HIV)-associated disease is related to the mode of anesthesia in the HIV infected parturient. Ninety-six known HIV-infected asymptomatic parturients who delivered between January 1990 and January 1992 at Grady Memorial Hospital were reviewed for pre-delivery health status, mode of anesthesia and peripartum/post-partum complications. Statistics used chi2 analysis. ⋯ Thirty-one of the 96 women had CD4/CD8 T-cell lymphocyte data at second trimester and 24-48 h post partum which showed no worsening of maternal immune status in women receiving regional anesthesia, local anesthesia/intravenous sedation or no anesthesia. We believe that both regional and general anesthesia can be performed safely on the asymptomatic HIV-infected parturient. The choice of anesthesia should be based on the usual obstetric and clinical considerations.