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In the healthy myocardium left ventricular pressure is higher than aortic pressure because the left ventricle of the heart propels blood into the aorta and aortic arch which then pushes the blood into the brachiocephalic, left common carotid, and left subclavian. However, in different types of cardiac disease this is not the case. A good example of this is left ventricular hypertrophy. With LVH the inherent pressure of the left ventricle can be decreased due to the hypertrophic chamber. All hypertrophied muscles are not necessarily a positive situation. LVH commonly causes backflow of blood and myocardial and pulmonic congestion which leads to a multitude of problems. This would adversely affect the cardiac output (lower it) and disrupt the normal filling times of the other chambers.
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