• S Inoue, Y Tanaka, M Kawaguchi, and H Furuya.
• Department ofAnesthesiology, Nara Medical University, Nara, Japan.
• Anaesth Intensive Care. 2009 Nov 1;37(6):893-902.

AbstractLandiolol is a recently developed, selective short-acting beta1-antagonist. The aim of the study was to evaluate the efficacy of landiolol for suppressing haemodynamic changes induced by laryngoscopy and tracheal intubation (LTI) in Japanese patients. A comprehensive search was undertaken to identify all randomised comparisons of landiolol with placebo that examined effects on haemodynamic responses following LTI. MEDLINE, Cochrane CENTRAL, EMBASE and the Japanese Central Review of Medicine were searched from their date of inception to February 2009. Trials were included in the review if heart rate, systolic blood pressure or mean blood pressure was recorded at three different stages: pre-induction, just before intubation and in the post-intubation period. Weighted mean differences and 95% confidence intervals (CI) were calculated for changes in haemodynamic variables between treatment and placebo groups. Seven randomised controlled trials involving 325 patients were included in the study. Of these, five trials that used the same continuous infusion regimen for landiolol (0.125 mg/kg/minute for one minute followed by 0.04 mg/kg/minute) showed efficacy in attenuation of heart rate and blood pressure following LTI (heart rate weighted mean difference: -21.18 bpm, 95% CI -18.59 to -14.20; systolic blood pressure weighted mean difference: -23.03 mmHg, 95% CI -43.59 to -2.47; mean blood pressure weighted mean difference: -16.26 mmHg, 95% CI -23.96 to -8.55). The other two studies used bolus administration of landiolol (0.1 to 0.3 mg/kg), but it was difficult to evaluate the efficacy because of the limited amount of data. Landiolol administration at 0.125 mg/kg/minute for one minute followed by 0.04 mg/kg/minute effectively suppresses the increases in heart rate and blood pressure following LTI. For a bolus regimen of landiolol, further studies are required to determine the efficacy and the optimal dose and timing for suppression of haemodynamic responses following LTI.

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