期刊
ACTA ANAESTHESIOLOGICA SCANDINAVICA
卷 56, 期 1, 页码 83-87出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1399-6576.2011.02589.x
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资金
- Merck Sharp & Dohme Inc., JAPAN
Background: The aim of this study was to evaluate the correlation between cardiac output (CO) and reversibility of rocuronium-induced moderate neuromuscular block with sugammadex in elderly patients. Methods: Fifty elderly (>= 65 years) patients were enrolled in this study. During 1.0-1.5% end-tidal sevoflurane and remifentanil anaesthesia, contraction of the adductor pollicis muscle in response to ulnar nerve stimulation was acceleromyographically quantified. All patients initially received 1 mg/kg rocuronium followed by 0.2 mg/kg whenever the second twitch T2 of the train-of-four (TOF) response reappeared. CO was measured throughout the study using a FloTrac (TM)/Vigileo (TM) monitor. After completion of surgery and at the reappearance of T2, the time required for a bolus dose of 2 mg/kg sugammadex to facilitate recovery to a TOF ratio of 0.9 was recorded, and its correlation with CO was analysed. Results: Adequate recovery of neuromuscular block was achieved after sugammadex in all patients. Mean CO at the time of reversal with sugammadex was 5.3 l/min (1.3), and recovery time to a TOF ratio of 0.9 was 173.4 s (54.8). A statistically significant inverse correlation was seen between the time to recovery to a TOF ratio of 0.9 and CO [reversal time (s) = -27.7 center dot CO + 298.7, R(2) = 0.461, P < 0.0001]. Conclusions: The time to reach a TOF ratio of 0.9 following sugammadex is dependent on CO in elderly patients.
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