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A functional murmur (innocent murmur, physiologic murmur) is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself. [1]
Heart murmurs are unique heart sounds produced when blood flows across a heart valve or blood vessel. [1] This occurs when turbulent blood flow creates a sound loud enough to hear with a stethoscope. [2] The sound differs from normal heart sounds by their characteristics. For example, heart murmurs may have a distinct pitch, duration and timing.
Still's murmur is detected via auscultation with a stethoscope.It has a peculiar "musical", "resonant" or "vibratory" quality that is quite unique. [1] [2] It is generally most easily heard at the left middle or lower sternal border and the right upper sternal border, often with radiation to the carotid arteries, although other locations are common.
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Innocent heart murmurs are most often seen in puppies and young dogs, and they cause no significant harm to the heart muscle or the blood. In fact, it's thought that over a quarter of puppies ...
Generally, heart murmurs are classified as innocent (also called physiological or functional) or pathological (abnormal). Innocent murmurs are usually harmless, often caused by physiological conditions outside the heart, and the result of certain benign structural defects.
Others struggle to reconcile the people they have become with those innocent selves who jubilantly enlisted just a few years before. Either way, they manage mostly out of sight and on their own. Yet a glimpse into their world also raises troubling questions for those of us outside the military – about wartime morality, about the ...
27 Murmurs: innocent murmur features. 28 Murmurs: louder with inspiration vs expiration. 29 Murmurs: questions to ask. 30 Murmurs: systolic vs. diastolic.