Cardiovascular ultrasound · 2011
Left atrial volume predicts adverse cardiac and cerebrovascular events in patients with hypertrophic cardiomyopathy.
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Tani Tomoko, Yagi Toshikazu, Kitai Takeshi, Kim Kitae, Nakamura Hitomi, Konda Toshiko, Fujii Yoko, Kawai Junichi, Kobori Atsushi, Ehara Natsuhiko, Kinoshita Makoto, Kaji Shuichiro, Yamamuro Atsushi, Morioka Shigefumi, Kita Toru, Furukawa Yutaka
Аннотация
AIMS: To prospectively evaluate the relationship between left atrial volume (LAV) and the risk of clinical events in patients with hypertrophic cardiomyopathy (HCM).
METHODS: We enrolled a total of 141 HCM patients with sinus rhythm and normal pump function, and 102 patients (73 men; mean age, 61±13 years) who met inclusion criteria were followed for 30.8±10.0 months. The patients were divided into two groups with or without major adverse cardiac and cerebrovascular events (MACCE), a composite of stroke, sudden death, and congestive heart failure. Detailed clinical and echocardiographic data were obtained.
RESULTS: MACCE occurred in 24 patients (18 strokes, 4 congestive heart failure and 2 sudden deaths). Maximum LAV, minimum LAV, and LAV index (LAVI) corrected for body surface area (BSA) were significantly greater in patients with MACCE than those without MACCE (maximum LAV: 64.3±25.0 vs. 51.9±16.0 ml, p=0.005; minimum LAV: 33.9±15.1 vs. 26.2±10.9 ml, p=0.008; LAVI: 40.1±15.4 vs. 31.5±8.7 ml/mm2, p=0.0009), while there were no differences in the other echocardiographic parameters.LAV/BSA of ≥40.4 ml/m2 to identify patients with cardiovascular complications with a sensitivity of 73% and a specificity of 88%.
CONCLUSION: LAVI may be an effective marker for detecting the risk of MACCE in patients with HCM and normal pump function.
METHODS: We enrolled a total of 141 HCM patients with sinus rhythm and normal pump function, and 102 patients (73 men; mean age, 61±13 years) who met inclusion criteria were followed for 30.8±10.0 months. The patients were divided into two groups with or without major adverse cardiac and cerebrovascular events (MACCE), a composite of stroke, sudden death, and congestive heart failure. Detailed clinical and echocardiographic data were obtained.
RESULTS: MACCE occurred in 24 patients (18 strokes, 4 congestive heart failure and 2 sudden deaths). Maximum LAV, minimum LAV, and LAV index (LAVI) corrected for body surface area (BSA) were significantly greater in patients with MACCE than those without MACCE (maximum LAV: 64.3±25.0 vs. 51.9±16.0 ml, p=0.005; minimum LAV: 33.9±15.1 vs. 26.2±10.9 ml, p=0.008; LAVI: 40.1±15.4 vs. 31.5±8.7 ml/mm2, p=0.0009), while there were no differences in the other echocardiographic parameters.LAV/BSA of ≥40.4 ml/m2 to identify patients with cardiovascular complications with a sensitivity of 73% and a specificity of 88%.
CONCLUSION: LAVI may be an effective marker for detecting the risk of MACCE in patients with HCM and normal pump function.