ISSN 1671-5411 CN 11-5329/R
Bum Sung Kim, Tae-Hoon Kim, Jeong-Hwan Oh, Chang Hee Kwon, Sung Hea Kim, Hyung Joong Kim, Heung Kon Hwang, Sang-Man Chung. Association between preoperative high sensitive troponin I levels and cardiovascular events after hip fracture surgery in the elderly. J Geriatr Cardiol 2018; 15(3): 215-221. doi: 10.11909/j.issn.1671-5411.2018.03.002
Citation: Bum Sung Kim, Tae-Hoon Kim, Jeong-Hwan Oh, Chang Hee Kwon, Sung Hea Kim, Hyung Joong Kim, Heung Kon Hwang, Sang-Man Chung. Association between preoperative high sensitive troponin I levels and cardiovascular events after hip fracture surgery in the elderly. J Geriatr Cardiol 2018; 15(3): 215-221. doi: 10.11909/j.issn.1671-5411.2018.03.002

Association between preoperative high sensitive troponin I levels and cardiovascular events after hip fracture surgery in the elderly

doi: 10.11909/j.issn.1671-5411.2018.03.002
  • Received Date: 2018-02-15
  • Rev Recd Date: 2018-02-15
  • Publish Date: 2018-03-28
  • Objective Cardiovascular complications contribute to postoperative morbidity and mortality in elderly hip fracture patients. Limited data are available regarding which preoperative risk factors predict cardiovascular course following hip fracture surgery (HFS). We used high sensitive troponin I (hs-TnI) assays and clinical parameters to identify preoperative risk factors associated with major adverse cardiac events (MACE) in elderly hip fracture patients. Method From August 2014 to November 2016, 575 patients with hip fracture were enrolled in a retrospective, single-center registry. A total of 262 of these patients underwent HFS and hs-TnI assays. MACE was defined as postoperative all-cause deaths, heart failure (HF), new-onset atrial fibrillation (AF), myocardial infarction (MI) and cardiovascular re-hospitalization that occurred within 90 days postoperative. Results Of 262 HFS patients, MACE developed following HFS in 65 (24.8%). Patients with MACE were older and had higher rates of renal insufficiency, coronary artery disease, prior HF, low left ventricular ejection fraction and use of beta blockers; higher levels of hs-TnI and N-terminal pro-brain natriuretic peptide (NT-proBNP) and higher revised cardiac risk index. A preoperative hs-TnI ≥ 6.5 ng/L was associated with high risk of postoperative HF, new-onset AF and MACE. In multivariable analysis, preoperative independent predictors for MACE were age > 80 years [adjusted hazard ratio (HR): 1.79, 95% confident interval (CI): 1.03–3.13, P = 0.04], left ventricular ejection fraction (LVEF) P 6.5 ng/L (adjusted HR: 3.75, 95% CI: 2.09–6.17, P Conclusion In elderly patients with hip fracture who undergo HFS, a preoperative assessment of hs-TnI may help the risk refinement of cardiovascular complications.
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