What are the physical signs of aortic stenosis, Biology

Q. What are the Physical Signs of aortic stenosis?

Typically the carotid pulse in severe aortic stenosis is delayed (pulsus tardus). It is also decreased in amplitude (pulses parvus) when cardiac decompensation occurs. This pulse is fairly specific for severe aortic stenosis. However, patients with low cardiac output and mild stenosis will have a low volume pulse that is normal in timing.

In patients with atherosclerotic vessels carotid upstroke may be brisk even in severe aortic stenosis. A detectable time gap between the apical pulse and carotid pulse suggests prolonged ejection time of severe aortic stenosis. Wide pulse pressure in the presence of other findings of severe aortic stenosis suggests associated aortic regurgitation. Also wide pulse pressure with normal diastolic pressure is fairly common in elderly patients with concomitant hypertensive vascular disease.

Typically apical impulse is forcible and sustained and with decompensation of left ventricle it is displaced. A palpable S4 is common in severe aortic stenosis. Absence of a valvular ejection click in children should make one suspect the diagnosis of non valvular aortic stenosis. Usually S2 is single due to muffled A2 . If the valve is pliable with less extent of calcification, it may produce paradoxical split in a patient with severe valvular aortic stenosis. Typically the murmur of valvular aortic stenosis starts after S1, is crescendo decrescendo ejection systolic murmur with maximum intensity at second right inter costal space and radiates to carotids. A grade I murmur in the absence of decompensation suggests mild lesion while the same in a patient with severe decompensation should not make one eliminate aortic stenosis as a cause of decompensation.

A grade IV murmur almost always suggests severe aortic stenosis. In children and elderly selective conduction of high frequency sounds to apical area may give risk to cooing murmur at apex (Gallavardin phenomenon). However, the intensity of murmur may vary with cardiac output, chest valve thickness, emphysema and direction of turbulent jet. A late peaking loud grade IV murmur is very specific to severe aortic stenosis.

Posted Date: 5/28/2013 5:21:11 AM | Location : United States

Related Discussions:- What are the physical signs of aortic stenosis, Assignment Help, Ask Question on What are the physical signs of aortic stenosis, Get Answer, Expert's Help, What are the physical signs of aortic stenosis Discussions

Write discussion on What are the physical signs of aortic stenosis
Your posts are moderated
Related Questions
Define the Sterilization protocol? Sterilization protocol encompasses the following: 1. Transport of instruments to the sterilization area 2. Cleaning of instruments 3

Blotting method to detect particular one proteins Ans) Western blotting

State the terms - Blastocoel and Blastopore? During the development of embryo, single cells divide and form a hollow ball of cells one cell layer thick. Cavity inside this holl

Types of leaves Collect leaves from such plants as lilies, bamboo, corn, willow and geraniums. View that the monocots (lily, bamboo, corn, sugar cane) have the veins running pa

1. You are observing adsorption of a virus to the host cell, it uses long leg-like structures, what are they called?

Prevention and control The organism is sensitive to penicillin, tetracycline and other broad-spectrum antibiotics. Newer generation drugs are being used for the treatment of affec

Why acquired traits are not directly related to the process of evolution? As acquired traits are not genetically determined, they cannot be passed on to offspring. Thus, they

Q. Explain Percutaneous Interventions Over the last two decades, significant strides have been made in the field of Balloon Valvuloplasties both in terms of technique as well a

Describe Aortic Regurgitation Murmur in Chronic AR Murmur ? Characteristic: High pitched, decrescendo murmur, immediately after S2 and extending through and part or all of dias

The atomic number of the isotope 238U of uranium is 92. The nucleus of this isotope contains a) 184 protons, 92 electrons, and 54 neutrons. b) 92 protons and 146 neutrons. c) 92 pr