Multilayer Myocardial Mechanics in Genotype-Positive Left Ventricular Hypertrophy-Negative Patients With Hypertrophic Cardiomyopathy.

It is unknown whether the presence of a sarcomeric mutation alone is sufficient to result in abnormal myocardial force generation, or whether additional changes in myocardial architecture (hypertrophy, disarray, and fibrosis) are required to impair systolic function. Speckle tracking echocardiography allows quantification of global strain/strain rates, twist, and dyssynchrony. In the present study we sought to further elucidate early abnormalities of myocardial mechanics in sarcomeric mutation carriers without evidence of clinical disease.

Autonomy and dignity of patients with dementia: Perceptions of multicultural caretakers.

Background: A key message in the World Health Organization's report on dementia emphasizes the need to improve public and professional attitudes to dementia and its understanding, while acknowledging the fact that the workforce in dementia care is becoming increasingly diverse culturally.

Objectives: To explore possible differences among formal caretakers from varied cultural background in their attitudes toward the autonomy and human dignity of patients with dementia.

Research Design: Semi-structured interviews and content analysis, utilizing two fictional vignettes for eliciting caretakers' attitudes toward dignity and autonomy of their patients.

Effect of Left Ventricular Outflow Tract Obstruction on Left Atrial Mechanics in Hypertrophic Cardiomyopathy.

Left atrial (LA) volumes are known to be increased in hypertrophic cardiomyopathy (HCM) and are a predictor of adverse outcome. In addition, LA function is impaired and is presumed to be due to left ventricular (LV) diastolic dysfunction as a result of hypertrophy and myocardial fibrosis. In the current study, we assess the incremental effect of outflow tract obstruction (and concomitant mitral regurgitation) on LA function as assessed by LA strain.