Ventricular hypertrophy is thickening of the muscle of the left ventricle due to hypertension. The ventricle must work harder than normal to pump the blood at the higher pressure. As is the case with other muscles, the harder it works, the thicker it gets. So, the ventricular wall will not rupture because of hypertrophy. Ventricular rupture can occur after an extensive myocardial infarction in which the muscle becomes scarred, weakened and thinned. It can then balloon out in what is called a ventricular aneurysm which can rupture.
It can burst as the wall has become weakened due to an aneurysm most likely. Hypertrophy comes from the muscle working too hard. Most likely from damage to part of the heart from a heart attack. LVH can cause blood to back up into the lungs due to congestive heart failure.
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