Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies

Introduction Myocardial injury after noncardiac surgery has been recognised as an important complication associated with short-term and long-term morbidity and mortality. However, whether a higher level of postoperative cardiac troponin (cTn) is associated with a higher incidence of major complicati...

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Main Authors: Tao Tian, Chenghui Zhou, Yue Tian, Tao An, Jingfei Guo, Wenying Kang
Format: Article
Language:English
Published: BMJ Publishing Group 2021-06-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/11/6/e046223.full
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author Tao Tian
Chenghui Zhou
Yue Tian
Tao An
Jingfei Guo
Wenying Kang
author_facet Tao Tian
Chenghui Zhou
Yue Tian
Tao An
Jingfei Guo
Wenying Kang
author_sort Tao Tian
collection DOAJ
description Introduction Myocardial injury after noncardiac surgery has been recognised as an important complication associated with short-term and long-term morbidity and mortality. However, whether a higher level of postoperative cardiac troponin (cTn) is associated with a higher incidence of major complications remains controversial. Hence, we will conduct a comprehensive dose–response meta-analysis based on all relevant prospective studies to quantitatively evaluate the association between elevated postoperative cTn levels and short-/long-term adverse clinical outcomes following adult noncardiac surgery.Methods We will search the PubMed, EMBase, Cochrane Library, ISI Knowledge via Web of Science, China National Knowledge Infrastructure, Wanfang and VIP databases (from inception until October 2020) to identify all prospective cohort studies using the relevant keywords. The primary outcome will be all-cause mortality. The secondary outcomes will include cardiovascular mortality and major adverse cardiovascular events (MACEs). Univariable or multivariable meta-regression and subgroup analyses will be conducted for the comparison between elevated versus nonelevated categories of postoperative cTn levels. Sensitivity analyses will be used to assess the robustness of our results by removing each included study at one time to obtain and evaluate the remaining overall estimates of all-cause mortality or MACE. To conduct a dose–response meta-analysis for the potential linear or restricted cubic spline regression relationship between postoperative elevated cTn levels and all-cause mortality or MACE, studies with three or more categories will be included.Ethics and dissemination Ethical approval is waived for the systematic review protocol according to the Institutional Review Board/Independent Ethics Committee of Fuwai Hospital. This meta-analysis will be disseminated through a peer-reviewed journal for publication and conference presentations.PROSPERO registration number CRD42020173175.
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spelling doaj-art-75b51f30865c4846a93b5534423527bc2024-11-18T20:15:09ZengBMJ Publishing GroupBMJ Open2044-60552021-06-0111610.1136/bmjopen-2020-046223Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studiesTao Tian0Chenghui Zhou1Yue Tian2Tao An3Jingfei Guo4Wenying Kang5Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, ChinaDepartment of Anesthesiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaDepartment of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, ChinaDepartment of Heart Failure Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, ChinaDepartment of Anestheisiology, Fuwai Hospital State Key Laboratory of Cardiovascular Disease, Beijing, ChinaDepartment of Anestheisiology, Fuwai Hospital State Key Laboratory of Cardiovascular Disease, Beijing, ChinaIntroduction Myocardial injury after noncardiac surgery has been recognised as an important complication associated with short-term and long-term morbidity and mortality. However, whether a higher level of postoperative cardiac troponin (cTn) is associated with a higher incidence of major complications remains controversial. Hence, we will conduct a comprehensive dose–response meta-analysis based on all relevant prospective studies to quantitatively evaluate the association between elevated postoperative cTn levels and short-/long-term adverse clinical outcomes following adult noncardiac surgery.Methods We will search the PubMed, EMBase, Cochrane Library, ISI Knowledge via Web of Science, China National Knowledge Infrastructure, Wanfang and VIP databases (from inception until October 2020) to identify all prospective cohort studies using the relevant keywords. The primary outcome will be all-cause mortality. The secondary outcomes will include cardiovascular mortality and major adverse cardiovascular events (MACEs). Univariable or multivariable meta-regression and subgroup analyses will be conducted for the comparison between elevated versus nonelevated categories of postoperative cTn levels. Sensitivity analyses will be used to assess the robustness of our results by removing each included study at one time to obtain and evaluate the remaining overall estimates of all-cause mortality or MACE. To conduct a dose–response meta-analysis for the potential linear or restricted cubic spline regression relationship between postoperative elevated cTn levels and all-cause mortality or MACE, studies with three or more categories will be included.Ethics and dissemination Ethical approval is waived for the systematic review protocol according to the Institutional Review Board/Independent Ethics Committee of Fuwai Hospital. This meta-analysis will be disseminated through a peer-reviewed journal for publication and conference presentations.PROSPERO registration number CRD42020173175.https://bmjopen.bmj.com/content/11/6/e046223.full
spellingShingle Tao Tian
Chenghui Zhou
Yue Tian
Tao An
Jingfei Guo
Wenying Kang
Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
BMJ Open
title Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
title_full Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
title_fullStr Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
title_full_unstemmed Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
title_short Dose–response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery: a systematic review protocol of prospective studies
title_sort dose response effect of postprocedural elevated cardiac troponin level on adverse clinical outcomes following adult noncardiac surgery a systematic review protocol of prospective studies
url https://bmjopen.bmj.com/content/11/6/e046223.full
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