PHILADELPHIA, Pennsylvania, March 29 [Category: BizHospital] -- Children's Hospital of Philadelphia issued the following news release: * * * Precision Medicine Breakthrough: Mavacamten Markedly Reduces Heart Obstruction in Teens with Hypertrophic Cardiomyopathy * Researchers at Children's Hospital of Philadelphia (CHOP) reported today that adolescents with hypertrophic cardiomyopathy (HCM) who took mavacamten experienced reduced obstruction, allowing blood to flow more easily from the heart.  more