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In page Concentric hypertrophy:

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Laplace's law for a sphere states wall stress (T) is proportionate to the product of the transmural pressure (P) and cavitary radius (r) and inversely proportionate to wall thickness (W): In response to the pressure overload left ventricular wall thickness markedly increases—while the cavitary radius remains relatively unchanged. These compensatory changes, termed "concentric hypertrophy," reduce the increase in wall tension observed in aortic stenosis.[citation needed]