期刊
CLINICAL AND EXPERIMENTAL RHEUMATOLOGY
卷 40, 期 10, 页码 1933-1940出版社
CLINICAL & EXPER RHEUMATOLOGY
关键词
systemic sclerosis; cardiac disease; troponin
类别
资金
- Stauralaukis Discovery Fund
- Johns Hopkins in Health initiative
- Scleroderma Research Foundation
- Martha McCrory Professorship
- Nancy and Joachim Bechtle Precision Medicine Fund for Scleroderma
- Manugian Family Scholar
- Donald B. and Dorothy L. Stabler Foundation
- Chresanthe Staurulakis Memorial Fund
- NIH P30 [1P30AR070254-01]
- NIH/NIAMS R01 [AR073208]
- Manugian Family Scholar fund
- NIH [P30-AR070254]
- Scleroderma Foundation
- JHUSOM Clini-cian Scientist Award
- Stabler Foundation
- [K23AR073927]
This study investigates the association between elevated troponin levels and severe disease characteristics and poor outcomes in systemic sclerosis (SSc) patients. The findings suggest that elevated troponin levels are closely related to diffuse SSc subtype, decreased left ventricular ejection fraction, decreased forced vital capacity, increased right ventricular systolic pressure, higher severity scores, and increased mortality.
Objective Cardiac involvement is common in systemic sclerosis (SSc), and elevated troponin may be the only sign of ongoing myocardial disease. The objective was to determine whether the presence of elevated troponin associates with unique SSc characteristics and poor outcomes. Methods This retrospective, cross-sectional study included patients in the Johns Hopkins Scleroderma Center Research Registry with any troponin measurement in the past 10 years. Clinical data were compared between those with elevated versus normal troponin. Survival analyses including Cox proportional hazards and regression analyses were performed. Results 272 patients with a troponin measurement were identified. 83 (31%) had elevated troponin. Compared to those with a normal troponin level, those with elevated troponin level were more likely to have the diffuse SSc subtype (p=0.005), lower left ventricular ejection fraction (57.7 +/- 20% vs. 64.4 +/- 17.4%, p=0.007), lower forced vital capacity percent predicted (61.1 +/- 18.8% vs. 66.8 +/- 20.4%, p=0.03), higher right ventricular systolic pressure (51.4 +/- 20.9 vs. 43.4 +/- 15.9 mmHg, p=0.001), higher Medsger muscle and heart severity scores (p <= 0.001), and higher frequency of mortality (28% vs. 9.5%, p <= 0.0001). Patients with elevated troponin also have a 2.16-fold (95% CI 1.01-4.63, p=0.046) increased risk of death compared to those without elevated troponin even after adjusting for age, sex, disease duration, and cardiopulmonary risk factors. Conclusion Troponin may be a useful prognostic biomarker that may identify a subset of patients with heart disease that may warrant closer clinical investigation.
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