Prognostic Value of Combination of Cardiac Troponin T and B-Type Natriuretic Peptide after Initiation of Treatment in Patients with Chronic Heart Failure

Autor: Hiroyuki Naruse, Hitoshi Hishida, Youichi Nagamura, Wei Cui, Kouji Ezaki, Fumihiko Kitagawa, Junnichi Ishii, Yoshihisa Mori, Hisaji Oshima, Takeshi Kondo, Yuu Nakamura, Masanori Nomura, Takashi Ishikawa, Takahiro Kuno
Rok vydání: 2003
Předmět:
Zdroj: Clinical Chemistry. 49:2020-2026
ISSN: 1530-8561
0009-9147
DOI: 10.1373/clinchem.2003.021311
Popis: Background: Recent studies have suggested that cardiac troponin T (cTnT) and troponin I may detect ongoing myocardial damage involved in the progression of chronic heart failure (CHF). This study was prospectively designed to examine whether the combination of cTnT, a marker for ongoing myocardial damage, and B-type natriuretic peptide (BNP), a marker for left ventricular overload, would effectively stratify patients with CHF after initiation of treatment.Methods: We measured serum cTnT, plasma BNP, and left ventricular ejection fraction (LVEF) on admission for worsening CHF [New York Heart Association (NYHA) functional class III to IV] and 2 months after initiation of treatment to stabilize CHF (n = 100; mean age, 68 years).Results: Mean (SD) concentrations of cTnT [0.023 (0.066) vs 0.063 (0.20) μg/L] and BNP [249 (276) vs 753 (598) ng/L], percentage increased cTnT (>0.01 μg/L; 35% vs 60%), NYHA functional class [2.5 (0.6) vs 3.5 (5)], and LVEF [43 (13)% vs 36 (12)%] were significantly (P 0.01 μg/L and/or BNP >160 ng/L 2 months after initiation of treatment were associated with increased cardiac mortality and morbidity rates.Conclusion: The combination of cTnT and BNP measurements after initiation of treatment may be highly effective for risk stratification in patients with CHF.
Databáze: OpenAIRE