International journal of obstetric anesthesia
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Parturients with renal insufficiency or failure present a significant challenge for the anesthesiologist. Impaired renal function compromises fertility and increases both maternal and fetal morbidity and mortality. Close communication amongst medical specialists, including nephrologists, obstetricians, neonatologists and anesthesiologists is required to ensure the safety of mother and child. ⋯ Kidney function may deteriorate during pregnancy, necessitating early intervention. The goal is to maintain hemodynamic and physiologic stability while the demands of the pregnancy change. Drugs that may adversely affect the fetus, are nephrotoxic or are dependent on renal elimination should be avoided.
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Int J Obstet Anesth · Jul 2013
ReviewAllergic reactions during labour analgesia and caesarean section anaesthesia.
Allergic reactions in the parturient are challenging for the anaesthetist who is dealing with both mother and baby, often in circumstances when there is a need for delivery. While most previous reviews have focused on specific substances in individual cases, this review focuses on allergic reactions during the peripartum period, the differential diagnosis and specific treatment options. Immunoregulation and susceptibility to allergic reactions may change during pregnancy. ⋯ Most drugs used for resuscitation of the non-pregnant patient are suitable for the parturient. Some substances, such as H2-receptor antagonists for aspiration prophylaxis or corticosteroids for prematurity, may have been given before the event. Although fetal outcome is important, the mother is the primary focus of care.
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Int J Obstet Anesth · Jul 2013
Observational StudyTranscutaneous carbon dioxide levels and oxygen saturation following caesarean section performed under spinal anaesthesia with intrathecal opioids.
Intrathecal opioids can be associated with respiratory depression which may have serious consequences. We describe the use of a non-invasive monitor (TOSCA) to measure transcutaneous carbon dioxide levels and percentage of haemoglobin oxygen saturation in post-caesarean section patients in two hospitals which used different intrathecal opioids. ⋯ The incidence of opioid-induced respiratory depression detected by TOSCA is higher than previously reported by other monitoring methods. TOSCA may have a role in detecting subclinical respiratory depression in the obstetric population. Further studies with a control population are needed.
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Int J Obstet Anesth · Jul 2013
Outcomes after institution of a new oxytocin infusion protocol during the third stage of labor and immediate postpartum period.
Due to safety concerns when oxytocin is administered in an uncontrolled fashion, and recent dose-response data that indicate oxytocin's effectiveness at doses lower than those traditionally used, we instituted a new protocol for the infusion of oxytocin during the third stage of labor and in the immediate postpartum period. We undertook this study to confirm that this change in practice did not have untoward effects on postpartum hemorrhage rates. ⋯ Adoption of a protocol to infuse oxytocin in a controlled manner at a lower dose than that historically used was not associated with an increased incidence of postpartum hemorrhage.