The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery

Background: Intraoperative administration of opiates for postoperative analgesia requires a dosing strategy without clear indicators of pain in an anesthetized patient. Preoperative patient characteristics such as body mass index (BMI), gender, age, and other patient characteristics may provide impo...

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Main Authors: Samuel Robert Grodofsky, Ashish C Sinha
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2014-01-01
Series:Journal of Anaesthesiology Clinical Pharmacology
Subjects:
Online Access:http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=248;epage=252;aulast=Grodofsky
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author Samuel Robert Grodofsky
Ashish C Sinha
author_facet Samuel Robert Grodofsky
Ashish C Sinha
author_sort Samuel Robert Grodofsky
collection DOAJ
description Background: Intraoperative administration of opiates for postoperative analgesia requires a dosing strategy without clear indicators of pain in an anesthetized patient. Preoperative patient characteristics such as body mass index (BMI), gender, age, and other patient characteristics may provide important information regarding opiate requirements. This study intends to determine if there is an association between gender or BMI and the immediate postoperative pain scores after undergoing an open reduction and internal fixation (ORIF) of an ankle fracture with general anesthesia and morphine only analgesia. Materials and Methods: Using a retrospective cohort design, the perioperative records were reviewed at a university healthcare hospital.One hundred and thirty-seven cases met all inclusion and no exclusion criteria. Postanesthesia care unit (PACU) records were reviewed for pain scores at first report and 30 min later as well as PACU opiate requirements. T-test, chi-square, and Mann-Whitney tests compared univariate data and multivariate analysis was performed by linear regression. Results: There were no statistically significant PACU pain score group differences based on gender or BMI. Post hoc analysis revealed that in the setting of similar pain scores, obese patients received a similar weight based intraoperative morphine dose when using adjusted body weight (ABW) compared to nonobese subjects. A further finding revealed a negative correlation between age and pain score (P = 0.001). Conclusion: This study did not find an association between obesity or gender and postoperative pain when receiving morphine only preemptive analgesia. This study does support the use of ABW as a means to calculate morphine dosing for obese patients and that age is associated with lower immediate pain scores.
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spelling doaj.art-808f35a722554124990420f5a50fbfbc2022-12-21T17:14:31ZengWolters Kluwer Medknow PublicationsJournal of Anaesthesiology Clinical Pharmacology0970-91852014-01-0130224825210.4103/0970-9185.130041The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgerySamuel Robert GrodofskyAshish C SinhaBackground: Intraoperative administration of opiates for postoperative analgesia requires a dosing strategy without clear indicators of pain in an anesthetized patient. Preoperative patient characteristics such as body mass index (BMI), gender, age, and other patient characteristics may provide important information regarding opiate requirements. This study intends to determine if there is an association between gender or BMI and the immediate postoperative pain scores after undergoing an open reduction and internal fixation (ORIF) of an ankle fracture with general anesthesia and morphine only analgesia. Materials and Methods: Using a retrospective cohort design, the perioperative records were reviewed at a university healthcare hospital.One hundred and thirty-seven cases met all inclusion and no exclusion criteria. Postanesthesia care unit (PACU) records were reviewed for pain scores at first report and 30 min later as well as PACU opiate requirements. T-test, chi-square, and Mann-Whitney tests compared univariate data and multivariate analysis was performed by linear regression. Results: There were no statistically significant PACU pain score group differences based on gender or BMI. Post hoc analysis revealed that in the setting of similar pain scores, obese patients received a similar weight based intraoperative morphine dose when using adjusted body weight (ABW) compared to nonobese subjects. A further finding revealed a negative correlation between age and pain score (P = 0.001). Conclusion: This study did not find an association between obesity or gender and postoperative pain when receiving morphine only preemptive analgesia. This study does support the use of ABW as a means to calculate morphine dosing for obese patients and that age is associated with lower immediate pain scores.http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=248;epage=252;aulast=GrodofskyAcute painBMIgendermorphine
spellingShingle Samuel Robert Grodofsky
Ashish C Sinha
The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
Journal of Anaesthesiology Clinical Pharmacology
Acute pain
BMI
gender
morphine
title The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
title_full The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
title_fullStr The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
title_full_unstemmed The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
title_short The association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
title_sort association of gender and body mass index with postoperative pain scores when undergoing ankle fracture surgery
topic Acute pain
BMI
gender
morphine
url http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=248;epage=252;aulast=Grodofsky
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AT samuelrobertgrodofsky associationofgenderandbodymassindexwithpostoperativepainscoreswhenundergoinganklefracturesurgery
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