Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly

<b>Context:</b> Little is known about the relationship between sedative drugs used preoperatively and postoperative delirium. Melatonin is a drug used to sedate patients preoperatively and is hypothesized by recent works to have a curative effect on postoperative delirium. <b>Aims:...

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Main Author: Sultan Sherif
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2010-01-01
Series:Saudi Journal of Anaesthesia
Subjects:
Online Access:http://www.saudija.org/article.asp?issn=1658-354X;year=2010;volume=4;issue=3;spage=169;epage=173;aulast=Sultan
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author Sultan Sherif
author_facet Sultan Sherif
author_sort Sultan Sherif
collection DOAJ
description <b>Context:</b> Little is known about the relationship between sedative drugs used preoperatively and postoperative delirium. Melatonin is a drug used to sedate patients preoperatively and is hypothesized by recent works to have a curative effect on postoperative delirium. <b>Aims:</b> The incidence of postoperative delirium will be tested if affected by three different sedative drugs including melatonin. <b>Settings and Design:</b> Controlled randomized double-blind study. <b>Patients and Methods:</b> Three-hundred patients aged&gt;65 years scheduled for hip arthroplasty under spinal anesthesia were randomly distributed to one of the four groups. Group 1 (control) received nothing for sedation. Group 2 (melatonin) received 5 mg melatonin. Group 3 (midazolam) received 7.5 mg midazolam. Group 4 (clonidine) received 100 &#956;g clonidine. These medications were given orally at sleep time at night of operation and another dose 90 min before operative time. Patients who developed postoperative delirium received 5 mg of melatonin 9 pm for three successive days in a trial to treat delirium. <b>Statistical Analysis Used:</b> Statistical analysis was done using the SPSS Software (version 13). <b>Results:</b> Total of 222 patients completed the study. Percentage of postoperative delirium in the control group was 32.65&#x0025; (16/49 patients). The melatonin group showed a statistically significant decrease in the percentage of postoperative delirium to 9.43&#x0025; (5/53 patients). Melatonin was successful in treating 58.06&#x0025; of patients suffered postoperative delirium (36/62 patients) with no difference between different groups. <b>Conclusions:</b> Postoperative delirium is affected with the drug used for preoperative sedation. Melatonin was successful in decreasing postoperative delirium when used preoperatively and in treating more than half of patients developed postoperative delirium when used for three postoperative nights.
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spelling doaj.art-d13fc1b6baeb4983ba081183dbf120c52022-12-21T20:14:44ZengWolters Kluwer Medknow PublicationsSaudi Journal of Anaesthesia1658-354X0975-31252010-01-0143169173Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderlySultan Sherif<b>Context:</b> Little is known about the relationship between sedative drugs used preoperatively and postoperative delirium. Melatonin is a drug used to sedate patients preoperatively and is hypothesized by recent works to have a curative effect on postoperative delirium. <b>Aims:</b> The incidence of postoperative delirium will be tested if affected by three different sedative drugs including melatonin. <b>Settings and Design:</b> Controlled randomized double-blind study. <b>Patients and Methods:</b> Three-hundred patients aged&gt;65 years scheduled for hip arthroplasty under spinal anesthesia were randomly distributed to one of the four groups. Group 1 (control) received nothing for sedation. Group 2 (melatonin) received 5 mg melatonin. Group 3 (midazolam) received 7.5 mg midazolam. Group 4 (clonidine) received 100 &#956;g clonidine. These medications were given orally at sleep time at night of operation and another dose 90 min before operative time. Patients who developed postoperative delirium received 5 mg of melatonin 9 pm for three successive days in a trial to treat delirium. <b>Statistical Analysis Used:</b> Statistical analysis was done using the SPSS Software (version 13). <b>Results:</b> Total of 222 patients completed the study. Percentage of postoperative delirium in the control group was 32.65&#x0025; (16/49 patients). The melatonin group showed a statistically significant decrease in the percentage of postoperative delirium to 9.43&#x0025; (5/53 patients). Melatonin was successful in treating 58.06&#x0025; of patients suffered postoperative delirium (36/62 patients) with no difference between different groups. <b>Conclusions:</b> Postoperative delirium is affected with the drug used for preoperative sedation. Melatonin was successful in decreasing postoperative delirium when used preoperatively and in treating more than half of patients developed postoperative delirium when used for three postoperative nights.http://www.saudija.org/article.asp?issn=1658-354X;year=2010;volume=4;issue=3;spage=169;epage=173;aulast=Sultan<i>Postoperative deliriummelatoninhip arthroplastyspinal anesthesia</i>
spellingShingle Sultan Sherif
Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
Saudi Journal of Anaesthesia
<i>Postoperative delirium
melatonin
hip arthroplasty
spinal anesthesia</i>
title Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
title_full Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
title_fullStr Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
title_full_unstemmed Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
title_short Assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
title_sort assessment of role of perioperative melatonin in prevention and treatment of postoperative delirium after hip arthroplasty under spinal anesthesia in the elderly
topic <i>Postoperative delirium
melatonin
hip arthroplasty
spinal anesthesia</i>
url http://www.saudija.org/article.asp?issn=1658-354X;year=2010;volume=4;issue=3;spage=169;epage=173;aulast=Sultan
work_keys_str_mv AT sultansherif assessmentofroleofperioperativemelatonininpreventionandtreatmentofpostoperativedeliriumafterhiparthroplastyunderspinalanesthesiaintheelderly