Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients

Background and Aims: Obese patients are more vulnerable to residual neuromuscular block (NMB) and its associated complications in the post-operative period. This study was carried out to compare neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients, object...

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Main Authors: Shilpa Bhimasen Joshi, K S Vasudeva Upadhyaya, M Manjuladevi
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2015-01-01
Series:Indian Journal of Anaesthesia
Subjects:
Online Access:http://www.ijaweb.org/article.asp?issn=0019-5049;year=2015;volume=59;issue=3;spage=165;epage=170;aulast=Joshi
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author Shilpa Bhimasen Joshi
K S Vasudeva Upadhyaya
M Manjuladevi
author_facet Shilpa Bhimasen Joshi
K S Vasudeva Upadhyaya
M Manjuladevi
author_sort Shilpa Bhimasen Joshi
collection DOAJ
description Background and Aims: Obese patients are more vulnerable to residual neuromuscular block (NMB) and its associated complications in the post-operative period. This study was carried out to compare neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients, objectively using neuromuscular (NM) monitoring. Methods: Twenty female patients each belonging to normal weight, overweight and obese, based on body mass index, requiring general anaesthesia were recruited for this prospective cross sectional study. NMB was induced with vecuronium (0.1 mg/kg) dose based on patient′s real body weight (RBW) and monitored using acceleromyographic train of four (TOF). All patients received neostigmine 40 μg/kg and glycopyrrolate 10 μg/kg at 25% of spontaneous recovery of first twitch height (T1) of TOF (DUR 25%) and were allowed to recover to TOF ratio of 0.9. Statistical analysis was done using analysis of variance test. Results: Recovery of TOF ratio to 0.5 was comparable in all three groups. Recovery of TOF ratio to 0.7 was delayed in obese (9.82 ± 3.21 min) compared with normal weight group (7.50 ± 2.52 min). Recovery of TOF to 0.9 was significantly delayed in both overweight (12.18 ± 4.29 min) and obese patients (13.78 ± 4.30 min). DUR 25% was significantly longer in overweight (mean, standard deviation [range]; 30.10 [19-40 min]) and obese (28.8 [12-45 min]) compared with normal weight patients (22.75 [16-30 min]). Conclusion: In overweight and obese patients, when vecuronium induction dose is based on RBW, neostigmine induced recovery of NMB is delayed in late phases (TOF 0.7-0.9), which may result in vulnerability for associated complications of incomplete recovery. Ensuring safe recovery thus requires objective NM monitoring.
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spelling doaj.art-105c2cd4c8614bbdadff498174cedf112022-12-22T03:37:20ZengWolters Kluwer Medknow PublicationsIndian Journal of Anaesthesia0019-50492015-01-0159316517010.4103/0019-5049.153038Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patientsShilpa Bhimasen JoshiK S Vasudeva UpadhyayaM ManjuladeviBackground and Aims: Obese patients are more vulnerable to residual neuromuscular block (NMB) and its associated complications in the post-operative period. This study was carried out to compare neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients, objectively using neuromuscular (NM) monitoring. Methods: Twenty female patients each belonging to normal weight, overweight and obese, based on body mass index, requiring general anaesthesia were recruited for this prospective cross sectional study. NMB was induced with vecuronium (0.1 mg/kg) dose based on patient′s real body weight (RBW) and monitored using acceleromyographic train of four (TOF). All patients received neostigmine 40 μg/kg and glycopyrrolate 10 μg/kg at 25% of spontaneous recovery of first twitch height (T1) of TOF (DUR 25%) and were allowed to recover to TOF ratio of 0.9. Statistical analysis was done using analysis of variance test. Results: Recovery of TOF ratio to 0.5 was comparable in all three groups. Recovery of TOF ratio to 0.7 was delayed in obese (9.82 ± 3.21 min) compared with normal weight group (7.50 ± 2.52 min). Recovery of TOF to 0.9 was significantly delayed in both overweight (12.18 ± 4.29 min) and obese patients (13.78 ± 4.30 min). DUR 25% was significantly longer in overweight (mean, standard deviation [range]; 30.10 [19-40 min]) and obese (28.8 [12-45 min]) compared with normal weight patients (22.75 [16-30 min]). Conclusion: In overweight and obese patients, when vecuronium induction dose is based on RBW, neostigmine induced recovery of NMB is delayed in late phases (TOF 0.7-0.9), which may result in vulnerability for associated complications of incomplete recovery. Ensuring safe recovery thus requires objective NM monitoring.http://www.ijaweb.org/article.asp?issn=0019-5049;year=2015;volume=59;issue=3;spage=165;epage=170;aulast=JoshiNeostigmineneuromuscular monitoringobesityvecuronium bromide
spellingShingle Shilpa Bhimasen Joshi
K S Vasudeva Upadhyaya
M Manjuladevi
Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
Indian Journal of Anaesthesia
Neostigmine
neuromuscular monitoring
obesity
vecuronium bromide
title Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
title_full Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
title_fullStr Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
title_full_unstemmed Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
title_short Comparison of neostigmine induced reversal of vecuronium in normal weight, overweight and obese female patients
title_sort comparison of neostigmine induced reversal of vecuronium in normal weight overweight and obese female patients
topic Neostigmine
neuromuscular monitoring
obesity
vecuronium bromide
url http://www.ijaweb.org/article.asp?issn=0019-5049;year=2015;volume=59;issue=3;spage=165;epage=170;aulast=Joshi
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