Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption

Background and Aims : Utility of gabapentin for pre-operative anxiolysis as compared to commonly administered alprazolam is not evident. The aim of the present study was to compare the effects of pre-operative oral gabapentin 600 mg, alprazolam 0.5 mg or a placebo on pre-operative anxiety along with...

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Main Authors: Tim Thomas Joseph, Handattu Mahabaleswara Krishna, Shyamsunder Kamath
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2014-01-01
Series:Indian Journal of Anaesthesia
Subjects:
Online Access:http://www.ijaweb.org/article.asp?issn=0019-5049;year=2014;volume=58;issue=6;spage=693;epage=699;aulast=Joseph
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author Tim Thomas Joseph
Handattu Mahabaleswara Krishna
Shyamsunder Kamath
author_facet Tim Thomas Joseph
Handattu Mahabaleswara Krishna
Shyamsunder Kamath
author_sort Tim Thomas Joseph
collection DOAJ
description Background and Aims : Utility of gabapentin for pre-operative anxiolysis as compared to commonly administered alprazolam is not evident. The aim of the present study was to compare the effects of pre-operative oral gabapentin 600 mg, alprazolam 0.5 mg or a placebo on pre-operative anxiety along with post-operative pain and morphine consumption. Methods: Seventy five patients scheduled for abdominal hysterectomy under general anaesthesia were included. Groups gabapentin, alprazolam and placebo, received oral gabapentin 600 mg, alprazolam 0.5 mg and one capsule of oral B-complex forte with Vitamin C respectively, on the night prior to surgery and 2 h prior to surgery. Visual analogue scale (VAS) was used to measure the anxiety and post-operative pain. All patients received patient-controlled analgesia. Statistical tests used were Kruskal-Wallis test, Wilcoxon signed rank test and one-way ANOVA. Results: Alprazolam provided significant anxiolysis (median [interquartile range] baseline VAS score 35 [15.5, 52] to 20 [6.5, 34.5] after drug administration; P = 0.007). Gabapentin did not provide significant decrease in anxiety (median [interquartile range] VAS score 21 [7.5, 41] to 20 [6.5, 34.5]; P = 0.782). First analgesic request time (median [interquartile range in minutes]) was longer in group gabapentin (17.5 [10, 41.25]) compared to group placebo (10 [5, 15]) (P = 0.019) but comparable to that in group alprazolam (15 [10, 30]). Cumulative morphine consumption at different time periods and total morphine consumption (mean [standard deviation]) at the end of study period (38.65 [18.04], 39.91 [15.73], 44.29 [16.02] mg in group gabapentin, alprazolam and placebo respectively) were comparable. Conclusion: Gabapentin 600 mg does not have significant anxiolytic effect compared to alprazolam 0.5 mg. Alprazolam 0.5 mg was found to be an effective anxiolytic in the pre-operative period. Neither alprazolam nor gabapentin, when compared to placebo showed any opioid sparing effects post-operatively.
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spelling doaj.art-6336a75bff144d7c9848adc1282a9ca62022-12-22T00:32:00ZengWolters Kluwer Medknow PublicationsIndian Journal of Anaesthesia0019-50492014-01-0158669369910.4103/0019-5049.147134Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumptionTim Thomas JosephHandattu Mahabaleswara KrishnaShyamsunder KamathBackground and Aims : Utility of gabapentin for pre-operative anxiolysis as compared to commonly administered alprazolam is not evident. The aim of the present study was to compare the effects of pre-operative oral gabapentin 600 mg, alprazolam 0.5 mg or a placebo on pre-operative anxiety along with post-operative pain and morphine consumption. Methods: Seventy five patients scheduled for abdominal hysterectomy under general anaesthesia were included. Groups gabapentin, alprazolam and placebo, received oral gabapentin 600 mg, alprazolam 0.5 mg and one capsule of oral B-complex forte with Vitamin C respectively, on the night prior to surgery and 2 h prior to surgery. Visual analogue scale (VAS) was used to measure the anxiety and post-operative pain. All patients received patient-controlled analgesia. Statistical tests used were Kruskal-Wallis test, Wilcoxon signed rank test and one-way ANOVA. Results: Alprazolam provided significant anxiolysis (median [interquartile range] baseline VAS score 35 [15.5, 52] to 20 [6.5, 34.5] after drug administration; P = 0.007). Gabapentin did not provide significant decrease in anxiety (median [interquartile range] VAS score 21 [7.5, 41] to 20 [6.5, 34.5]; P = 0.782). First analgesic request time (median [interquartile range in minutes]) was longer in group gabapentin (17.5 [10, 41.25]) compared to group placebo (10 [5, 15]) (P = 0.019) but comparable to that in group alprazolam (15 [10, 30]). Cumulative morphine consumption at different time periods and total morphine consumption (mean [standard deviation]) at the end of study period (38.65 [18.04], 39.91 [15.73], 44.29 [16.02] mg in group gabapentin, alprazolam and placebo respectively) were comparable. Conclusion: Gabapentin 600 mg does not have significant anxiolytic effect compared to alprazolam 0.5 mg. Alprazolam 0.5 mg was found to be an effective anxiolytic in the pre-operative period. Neither alprazolam nor gabapentin, when compared to placebo showed any opioid sparing effects post-operatively.http://www.ijaweb.org/article.asp?issn=0019-5049;year=2014;volume=58;issue=6;spage=693;epage=699;aulast=JosephAlprazolamanxietygabapentinpainpost-operative prevention and controlpsychological responses
spellingShingle Tim Thomas Joseph
Handattu Mahabaleswara Krishna
Shyamsunder Kamath
Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
Indian Journal of Anaesthesia
Alprazolam
anxiety
gabapentin
pain
post-operative prevention and control
psychological responses
title Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
title_full Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
title_fullStr Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
title_full_unstemmed Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
title_short Premedication with gabapentin, alprazolam or a placebo for abdominal hysterectomy: Effect on pre-operative anxiety, post-operative pain and morphine consumption
title_sort premedication with gabapentin alprazolam or a placebo for abdominal hysterectomy effect on pre operative anxiety post operative pain and morphine consumption
topic Alprazolam
anxiety
gabapentin
pain
post-operative prevention and control
psychological responses
url http://www.ijaweb.org/article.asp?issn=0019-5049;year=2014;volume=58;issue=6;spage=693;epage=699;aulast=Joseph
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AT handattumahabaleswarakrishna premedicationwithgabapentinalprazolamoraplaceboforabdominalhysterectomyeffectonpreoperativeanxietypostoperativepainandmorphineconsumption
AT shyamsunderkamath premedicationwithgabapentinalprazolamoraplaceboforabdominalhysterectomyeffectonpreoperativeanxietypostoperativepainandmorphineconsumption