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The left side of the heart is more muscular than the right side of the heart. It pumps oxygenated blood from the lungs into the aorta to perfuse the rest of the body. [4] When the heart has to pump against increased resistance, or afterload, as in the case of a ventricular obstruction, it compensates by growing in size. This adaptation is ...
Dr. Davis emphasizes that valve damage is not only caused by poor dietary habits, explaining, “Diet is often talked about in connection to heart disease, but valve damage has different causes. A ...
Thickening of the valve without causing obstruction is known as aortic sclerosis. [1] Causes include being born with a bicuspid aortic valve, and rheumatic fever; a normal valve may also harden over the decades due to calcification. [2] [1] A bicuspid aortic valve affects about one to two percent of the population. [1]
Reversible causes of Mobitz II and third-degree heart block include untreated Lyme disease, hypothyroidism, hyperkalemia (high levels of potassium), and drug toxicity. Drugs that slow the conduction of the electrical signal through AV node, such as beta-blockers , digoxin , calcium channel blockers , and amiodarone , can cause heart block if ...
Pulmonary valve stenosis, which is the thickening of the pulmonary valve, therefore causing narrowing; Mitral valve stenosis, which is the thickening of the mitral valve (of the left heart), therefore causing narrowing; Tricuspid valve stenosis, which is the thickening of the tricuspid valve (of the right heart), therefore causing narrowing
A pulmonary embolism is a blood clot that's made its way to the arteries that connect the heart and the lungs, which can cause chest discomfort and shortness of breath, Blankstein explains.
The most common causes of first-degree heart block are AV nodal disease, enhanced vagal tone (for example in athletes), myocarditis, acute myocardial infarction (especially acute inferior MI), electrolyte disturbances and medication. The medications that most commonly cause first-degree heart block are those that increase the refractory time of ...
Causes include any obstruction of blood flow to and from the heart. There are multiple, including pulmonary embolism, cardiac tamponade, and tension pneumothorax. Other causes include abdominal compartment syndrome , Hiatal hernia , severe aortic valve stenosis , and disorders of the aorta .
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