American journal of hematology
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Clinical Trial
Pilot study of continuous co-infusion of morphine and naloxone in children with sickle cell pain crisis.
Patients with sickle cell disease experience painful crises that often require hospitalization for a continuous infusion of morphine that may cause significant pruritus. We conducted a pilot study to determine the feasibility of simultaneous continuous co-infusion of naloxone with morphine, test novel assessment instruments for pruritus, and explore whether pruritus could be reduced while maintaining effective analgesia. Patients with sickle cell disease and painful crisis requiring continuous infusion morphine received continuous co-infusion of naloxone at 0.25 (low dose) or 1.0 mcg/kg x hr (high dose). ⋯ Simultaneous continuous infusion of naloxone with morphine in pediatric patients with sickle cell disease and pain crisis was feasible and well tolerated. A quantitative pruritus score allowed us to systematically measure pruritus. Further evaluation by randomized, placebo-controlled study of 1 mcg/kg x hr naloxone in this setting is required.
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Variation in bleeding in the perioperative period is a complex and multifactorial event associated with immediate and delayed consequences for the patient and health care resources. Little is known about the complex genetic influences on perioperative bleeding. ⋯ In this review, polymorphisms in the platelet receptor genes, plasminogen activator inhibitor, and angiotensin genes among others will be discussed. We will explore the nature, effects, and implications of the genetics that influence perioperative bleeding above and beyond surgical bleeding, particularly in cardiac surgery.