What is differences between right ventricular hypertrophy & right heart failure; cor pulmonale & pulmonary hypertension? do they hv the same meaning?

Same family: Rvh is thickening muscle bound right ventricle, sometimes due to pulmonary hypertension, lung disease, or left sided failure and backup. As the muscle does its very best to keep up with the needed work to pump through an ill obstructed lung circulation, it may tire out= right ventricular failure or collapse. This puts stress back to the body and fluid retention and stresses the left heart.

Related: Pulmonary hypertension leads to right ventricular hypertophy. If the hypertension is severe and prolongued, the hypertrophied right ventricle begins to enlarge out of proportion to it's thickness. That is called cor pulmonale. Subsequently the right ventricle begins to fail, the right ventricular end diastolic pressures rise over 20mmhg, the rv cardiac output gets compromised, legs, liver, abdswell.