Impact of peripheral muscle strength on extubation success after cardiac surgery.

IF 0.9 Q2 MEDICINE, GENERAL & INTERNAL

Einstein-Sao Paulo Pub Date : 2026-04-10 eCollection Date: 2026-01-01 DOI:10.31744/einstein_journal/2026AO1455

Júlio Adriano Leal de Bittencourt Carvalho, Maria Beatriz Sampaio Santana, André Luiz Lisboa Cordeiro

{"title":"Impact of peripheral muscle strength on extubation success after cardiac surgery.","authors":"Júlio Adriano Leal de Bittencourt Carvalho, Maria Beatriz Sampaio Santana, André Luiz Lisboa Cordeiro","doi":"10.31744/einstein_journal/2026AO1455","DOIUrl":null,"url":null,"abstract":"Objective: To evaluate the effects of peripheral muscle strength on extubation success after cardiac surgery.Methods: In this prospective cohort study, peripheral muscle strength and Rapid Shallow Breathing Index were assessed at 30 and 10 minutes during a spontaneous breathing trial. Patients were extubated and monitored for 48 hours to verify the success or failure of extubation, and preoperative variables were compared.Results: A total of 66 patients were evaluated, 55 (83%) of whom were classified as successful and 11 (17%) as weaning failures. The Medical Research Council score 30 minutes before the spontaneous breathing trial demonstrated a cut-off value of 44, with a sensitivity of 77%, specificity of 84%, area under the curve of 0.864, and 95% confidence interval (95%CI) 0.69-1.00. The Medical Research Council score 10 minutes before the spontaneous breathing trial showed a cut-off value of 49, with a sensitivity of 55%, specificity of 80%, area under the curve of 0.845, and 95%CI= 0.77-1.00. The Rapid Shallow Breathing Index assessed 10 minutes before the spontaneous breathing trial had a cut-off value of 45, with a sensitivity of 30%, specificity of 70%, area under the curve of 0.476, and 95%CI= 0.22-0.71.Conclusion: Peripheral muscle strength may be a useful predictor of extubation success in patients undergoing cardiac surgery.","PeriodicalId":47359,"journal":{"name":"Einstein-Sao Paulo","volume":"24 ","pages":"eAO1455"},"PeriodicalIF":0.9000,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13128246/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Einstein-Sao Paulo","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31744/einstein_journal/2026AO1455","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}

引用次数: 0

Abstract

Objective: To evaluate the effects of peripheral muscle strength on extubation success after cardiac surgery.

Methods: In this prospective cohort study, peripheral muscle strength and Rapid Shallow Breathing Index were assessed at 30 and 10 minutes during a spontaneous breathing trial. Patients were extubated and monitored for 48 hours to verify the success or failure of extubation, and preoperative variables were compared.

Results: A total of 66 patients were evaluated, 55 (83%) of whom were classified as successful and 11 (17%) as weaning failures. The Medical Research Council score 30 minutes before the spontaneous breathing trial demonstrated a cut-off value of 44, with a sensitivity of 77%, specificity of 84%, area under the curve of 0.864, and 95% confidence interval (95%CI) 0.69-1.00. The Medical Research Council score 10 minutes before the spontaneous breathing trial showed a cut-off value of 49, with a sensitivity of 55%, specificity of 80%, area under the curve of 0.845, and 95%CI= 0.77-1.00. The Rapid Shallow Breathing Index assessed 10 minutes before the spontaneous breathing trial had a cut-off value of 45, with a sensitivity of 30%, specificity of 70%, area under the curve of 0.476, and 95%CI= 0.22-0.71.

Conclusion: Peripheral muscle strength may be a useful predictor of extubation success in patients undergoing cardiac surgery.

查看原文本刊更多论文

外周肌力对心脏手术后拔管成功率的影响。

目的：探讨外周肌力对心脏手术后拔管成功率的影响。方法：在这项前瞻性队列研究中，在自主呼吸试验中，在30分钟和10分钟评估外周肌力和快速浅呼吸指数。患者拔管并监测48小时，以验证拔管成功或失败，并比较术前变量。结果：共评估66例患者，其中55例（83%）为成功，11例（17%）为脱机失败。医学研究委员会在自主呼吸试验前30分钟评分的临界值为44，灵敏度为77%，特异性为84%，曲线下面积为0.864,95%可信区间（95% ci）为0.69-1.00。自主呼吸试验前10分钟医学研究委员会评分的临界值为49，灵敏度为55%，特异性为80%，曲线下面积为0.845,95%CI= 0.77-1.00。自主呼吸试验前10分钟评估的快速浅呼吸指数的临界值为45，敏感性为30%，特异性为70%，曲线下面积为0.476,95%CI= 0.22-0.71。结论：外周肌力可能是心脏手术患者拔管成功与否的一个有用的预测指标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊