AIMS: Left-ventricular non-compaction (LVNC) is characterized by excessive and prominent left-ventricular (LV) trabeculations and may be associated with systolic dysfunction in advanced disease. We sought to determine the proportion of patients fulfilling LVNC criteria in an adult population referred to a heart failure clinic using current diagnostic criteria. METHODS AND RESULTS: One hundred and ninety-nine patients [age 63.5 +/- 15.9 years, 124 (62.3%) males] with LV systolic impairment were studied. All underwent clinical examination, electrocardiography, and 2-D echocardiography. The number of patients fulfilling diagnostic criteria for LVNC was retrospectively determined using three published definitions. Results were compared with 60 prospectively evaluated normal controls (age 35.7 +/- 13.5 years; 31 males, 30 blacks). Forty-seven patients (23.6%) fulfilled one or more echocardiographic definitions for LVNC. Patients fulfilling LVNC criteria were younger (P = 0.002), had larger LV end-diastolic dimension (P < 0.001), and smaller left atrial size (P = 0.01). LVNC was more common in black individuals (35.5 vs. 16.2%, P = 0.003). Five controls (four blacks) fulfilled one or more LVNC criteria. CONCLUSIONS: This study demonstrates an unexpectedly high percentage of patients with heart failure fulfilling current echocardiographic criteria for LVNC. This might be explained by a hitherto underestimated cause of heart failure, but the comparison with controls suggests that current diagnostic criteria are too sensitive, particularly in black individuals.
AIMS: Left-ventricular non-compaction (LVNC) is characterized by excessive and prominent left-ventricular (LV) trabeculations and may be associated with systolic dysfunction in advanced disease. We sought to determine the proportion of patients fulfilling LVNC criteria in an adult population referred to a heart failure clinic using current diagnostic criteria. METHODS AND RESULTS: One hundred and ninety-nine patients [age 63.5 +/- 15.9 years, 124 (62.3%) males] with LV systolic impairment were studied. All underwent clinical examination, electrocardiography, and 2-D echocardiography. The number of patients fulfilling diagnostic criteria for LVNC was retrospectively determined using three published definitions. Results were compared with 60 prospectively evaluated normal controls (age 35.7 +/- 13.5 years; 31 males, 30 blacks). Forty-seven patients (23.6%) fulfilled one or more echocardiographic definitions for LVNC. Patients fulfilling LVNC criteria were younger (P = 0.002), had larger LV end-diastolic dimension (P < 0.001), and smaller left atrial size (P = 0.01). LVNC was more common in black individuals (35.5 vs. 16.2%, P = 0.003). Five controls (four blacks) fulfilled one or more LVNC criteria. CONCLUSIONS: This study demonstrates an unexpectedly high percentage of patients with heart failure fulfilling current echocardiographic criteria for LVNC. This might be explained by a hitherto underestimated cause of heart failure, but the comparison with controls suggests that current diagnostic criteria are too sensitive, particularly in black individuals.
Authors: Anna Joong; Denise A Hayes; Brett R Anderson; Warren A Zuckerman; Sheila J Carroll; Wyman W Lai Journal: Pediatr Cardiol Date: 2017-08-03 Impact factor: 1.655
Authors: T Luijkx; M J Cramer; A Zaidi; R Rienks; P J Senden; S Sharma; F J van Hellemondt; C F Buckens; W P Mali; B K Velthuis Journal: Neth Heart J Date: 2012-10 Impact factor: 2.380