British journal of anaesthesia
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Randomized Controlled Trial
Efficacy of butylscopolamine for the treatment of catheter-related bladder discomfort: a prospective, randomized, placebo-controlled, double-blind study.
Catheter-related bladder discomfort (CRBD) secondary to intraoperative catheterization of urinary bladder is one of the most distressing symptoms during recovery from anaesthesia. Butylscopolamine, a peripheral antimuscarinic agent, is effective for relieving the pain, which is because of smooth muscle contraction. The aim of this study was to assess the efficacy and safety profiles of butylscopolamine in treating CRBD after urological surgeries. ⋯ Butylscopolamine 20 mg administered i.v. after complaining CRBD during recovery reduced both the severity of CRBD and the need for rescue analgesics without adverse effects in patients undergoing urologic surgeries.
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Randomized Controlled Trial Multicenter Study
I.V. APD421 (amisulpride) prevents postoperative nausea and vomiting: a randomized, double-blind, placebo-controlled, multicentre trial.
Postoperative nausea and vomiting (PONV) remain significant clinical problems for patients, especially nausea. The D2-antagonist droperidol was popular for prophylaxis until safety concerns limited its use. In early testing, APD421 (amisulpride for i.v. injection), a D2/D3-antagonist, has shown promising antiemetic efficacy at very low doses. We conducted a randomized, double-blind, dose-finding study to investigate APD421 in PONV prophylaxis. ⋯ APD421 given i.v. before surgery is safe and effective at reducing PONV in moderate/high-risk adult surgical patients. The optimal dose tested was 5 mg.
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Heterogeneity and its causes must be assessed using meta-analyses (meta-analysis). Especially in meta-analysis dealing with treatment of acute postoperative pain, the type of surgery is a source of heterogeneity. We aimed to assess whether the type of surgery is considered a source of heterogeneity in meta-analysis and how it is taken into account in meta-analysis evaluating the efficacy of treatment of acute postoperative pain. We further compared meta-analysis that pooled trials of surgeries with highly heterogeneous postoperative pain levels, the heterogeneous group, with meta-analysis that pooled trials involving surgeries with homogeneous pain levels, the homogenous group. ⋯ Meta-analyses evaluating treatment of postoperative pain should explore clinical heterogeneity associated with the type of surgery for better implications for practice.
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The ultrasound cardiac output monitor (USCOM) is a continuous wave Doppler system designed to measure cardiac output (CO) non-invasively and intermittently either from the pulmonary or from the aortic valve. USCOM scan quality is critical to obtaining reliable data and during anaesthesia it is said to deteriorate with increasing age. The aim of this study was to investigate the effect of age on supra-sternal USCOM scan repeatability during anaesthesia. ⋯ Increasing age has a significant effect on USCOM scan quality and data reliability.
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Blood flow patterns are important modifiers of platelet interactions with plasma coagulation factors. However, it is not feasible to evaluate rheological effects of haemodilution on coagulation using conventional coagulation testing. ⋯ Blood flow affects thrombus formation after haemodilution and subsequent haemostatic component interventions, with differential effects at low and high flow.