Revista espanola de cardiologia · 2007
[Cardiac troponin-I elevations after thoracic surgery. Incidence and correlations with baseline clinical characteristics, C-reactive protein and perioperative parameters].
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Lucreziotti Stefano, Conforti Serena, Carletti Francesca, Santaguida Giulia, Meda Stefano, Raveglia Federico, Tundo Fabrizio, Panigalli Tiziana, Biondi Maria L, Mezzetti Maurizio, Fiorentini Cesare
Аннотация
INTRODUCTION AND OBJECTIVES: The exact incidence of cardiac troponin-I elevation after thoracic surgery and its correlation with other clinical parameters have not been fully described. The aims of this study were to determine the frequency of postoperative cardiac troponin-I elevation following lung or pleural surgery for suspected cancer, and to investigate correlations with baseline clinical characteristics, the C-reactive protein level, and perioperative parameters.
METHODS: Fifty consecutive patients were enrolled in the study. In each patient, the following parameters were measured: clinical characteristics and C-reactive protein level at baseline, cardiac troponin-I level on postoperative days 1, 3 and 5, and blood pressure, heart rate and ECG parameters every day from the day of the operation until postoperative day 5.
RESULTS: The cardiac troponin-I level was elevated postoperatively in 20% of patients. There were significant associations with either a history of coronary artery disease or the presence of more than two coronary risk factors (80% vs. 32.5%; P=.011), a history of chronic antiplatelet therapy (50% vs. 17.5%; P=.046), pneumonectomy compared with less invasive procedures (40% vs. 10%; P=.041), pericardiotomy (30% vs. 2.5%; P=.022), and transient ST-segment alterations on perioperative ECGs (60% vs. 20%; P=.02). No significant correlation was found between cardiac troponin-I elevation and the baseline C-reactive protein level.
CONCLUSIONS: Cardiac troponin-I elevation occurs frequently after thoracic surgery and it is associated with clinical markers of coronary artery disease, extensive surgical procedures, and ischemic changes observed on perioperative ECGs.
METHODS: Fifty consecutive patients were enrolled in the study. In each patient, the following parameters were measured: clinical characteristics and C-reactive protein level at baseline, cardiac troponin-I level on postoperative days 1, 3 and 5, and blood pressure, heart rate and ECG parameters every day from the day of the operation until postoperative day 5.
RESULTS: The cardiac troponin-I level was elevated postoperatively in 20% of patients. There were significant associations with either a history of coronary artery disease or the presence of more than two coronary risk factors (80% vs. 32.5%; P=.011), a history of chronic antiplatelet therapy (50% vs. 17.5%; P=.046), pneumonectomy compared with less invasive procedures (40% vs. 10%; P=.041), pericardiotomy (30% vs. 2.5%; P=.022), and transient ST-segment alterations on perioperative ECGs (60% vs. 20%; P=.02). No significant correlation was found between cardiac troponin-I elevation and the baseline C-reactive protein level.
CONCLUSIONS: Cardiac troponin-I elevation occurs frequently after thoracic surgery and it is associated with clinical markers of coronary artery disease, extensive surgical procedures, and ischemic changes observed on perioperative ECGs.