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Ayurveda is a philosophy of life. In Ayurveda, before mentioning the cure for diseases and medicines, it has given all the facts necessary to avoid diseases and lead a healthy lifestyle. The most important part of these is behavior patterns. That is to say, the facts that help to lead a healthy life are clearly stated in the Ayurvedic books regardi…
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Ayurveda is a philosophy of life. In Ayurveda, before mentioning the cure for diseases and medicines, it has given all the facts necessary to avoid diseases and lead a healthy lifestyle. The most important part of these is behavior patterns. That is to say, the facts that help to lead a healthy life are clearly stated in the Ayurvedic books regardi…
  continue reading
 
Breath sounds heard close to large air passages have a louder and longer expiratory phase and their energy components extend over a broad frequency range (<200 – 4000 Hz). In health, such sounds are heard only over the large air passages e.g. the trachea. In the presence of consolidation or cavitation there is less filtration and attenuation of the…
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Aortic stenosis (AS) is narrowing of the aortic valve, obstructing blood flow from the left ventricle to the ascending aorta during systole. Causes include a congenital bicuspid valve, idiopathic degenerative sclerosis with calcification, and rheumatic fever. Untreated AS progresses to become symptomatic with one or more of the classic triad of syn…
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Aortic regurgitation (AR) is incompetency of the aortic valve causing backflow from the aorta into the left ventricle during diastole. Causes include valvular degeneration and aortic root dilation (with or without a bicuspid valve), rheumatic fever, endocarditis, myxomatous degeneration, aortic root dissection, and connective tissue (eg, Marfan syn…
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In mitral stenosis, mitral valve leaflets become thickened and immobile and the mitral orifice becomes narrowed due to fusion of the commissures and the presence of shortened, thickened and matted chordae. The most common cause is rheumatic fever, even though many patients do not recall the disorder. Symptoms of mitral stenosis correlate poorly wit…
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Mitral valve prolapse occurs when the flaps (leaflets) of the heart's mitral valve bulge (prolapse) like a parachute into the heart's left upper chamber (left atrium) as the heart contracts. In most people, mitral valve prolapse isn't life-threatening and doesn't require treatment or changes in lifestyle. Some people with mitral valve prolapse, how…
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The fourth heart sound, also known as the “atrial gallop,” occurs just before S1 when the atria contract to force blood into the LV. If the LV is noncompliant, and atrial contraction forces blood through the atrioventricular valves, a S4 is produced by the blood striking the LV. A S4 heart sound occurs during active LV filling when atrial contracti…
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The third heart sound, also known as the “ventricular gallop,” occurs just after S2 when the mitral valve opens, allowing passive filling of the left ventricle. The S3 sound is actually produced by the large amount of blood striking a very compliant LV. A S3 heart sound is produced during passive left ventricular filling when blood strikes a compli…
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The M1 sound occurs slightly before T1. Because the mitral and tricuspid valves normally close almost simultaneously, only a single heart sound is usually heard. However, in about 40% to 70% of normal individuals. A split S1 sound is common in the setting of a right bundle branch block or ventricular tachycardia/premature ventricular contractions, …
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The main normal heart sounds are the S1 and the S2 heart sound. The S3 can be normal, at times, but may be pathological. The first heart sound (S1) results from the closing of the mitral and tricuspid valves. The sound produced by the closure of the mitral valve is termed M1, and the sound produced by closure of the tricuspid valve is termed T1. Th…
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