Shaoyong Wu , Xiong Song , Yi Li , Jingxiu Huang , Xiao Ke , Chenyang Feng , Wei Xing , Fei Cao , Weian Zeng
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引用次数: 0
Abstract
Background
Myocardial injury after noncardiac surgery (MINS) significantly contributes to perioperative mortality, yet its incidence and prognostic value in patients undergoing oncological surgery remain inadequately characterized.
Methods
In this retrospective cohort study, we analyzed 6277 adults (mean age 58.9 years; 60.0 % male) undergoing intermediate-to-high-risk oncological surgeries between September 2013 and September 2022 with postoperative high-sensitivity troponin I (hsTnI) measurements. Dose-response relationships between peak hsTnI and the outcomes of 30-day mortality and 30-day major adverse cardiovascular events (MACE) were modeled using multivariable Cox regression with restricted cubic splines. MINS was defined as an ischemic hsTnI elevation >26 ng/L. Long-term (365-day) mortality was analyzed using both 30-day landmark analysis and flexible parametric survival model (FPSM) to account for potential time-varying effects.
Results
Each standard deviation increase in log-transformed hsTnI was associated with a twofold higher risk of 30-day mortality (adjusted hazard ratio [aHR] 2.33, 95 % CI: 1.94–2.80; P < 0.001) and a nearly fourfold higher risk of 30-day MACE (aHR 3.91, 95 % CI: 3.47–4.42; P < 0.001). After excluding 22 patients with nonischemic troponin elevations, MINS occurred in 19.1 % of patients, with 98.7 % being asymptomatic. MINS independently predicted 30-day mortality (aHR 7.10, 95 % CI: 4.21–11.97; P < 0.001) and accounted for 53.8 % of the population-attributable risk. Adding MINS modestly improved the C-index for 30-day mortality prediction (0.831 vs. 0.797; ΔC-index, 0.034; P = 0.090) but significantly improved risk reclassification (net reclassification improvement, 31.51 %) and discrimination (integrated discrimination improvement, 0.037). Landmark analysis showed an 8.1-fold increased risk within 30 days and a sustained 1.8-fold risk from day 31 to 365. FPSM confirmed a sustained excess mortality hazard throughout the year.
Conclusions
MINS is common, largely asymptomatic, and strongly associated with both early and late mortality after oncological surgery. Routine troponin monitoring may help identify high-risk patients for intervention.
期刊介绍:
The Journal of Clinical Anesthesia (JCA) addresses all aspects of anesthesia practice, including anesthetic administration, pharmacokinetics, preoperative and postoperative considerations, coexisting disease and other complicating factors, cost issues, and similar concerns anesthesiologists contend with daily. Exceptionally high standards of presentation and accuracy are maintained.
The core of the journal is original contributions on subjects relevant to clinical practice, and rigorously peer-reviewed. Highly respected international experts have joined together to form the Editorial Board, sharing their years of experience and clinical expertise. Specialized section editors cover the various subspecialties within the field. To keep your practical clinical skills current, the journal bridges the gap between the laboratory and the clinical practice of anesthesiology and critical care to clarify how new insights can improve daily practice.