Cardiac asthma may be defined as the clinical syndrome induced by acute passive congestion and edema of the lungs. It occurs when the left side of the heart suffers from a sudden disproportion between work load and work capacity. It may result, therefore: (1) from disorders which cause rapid impairment of the myocardium, the load being constant (for example, myocardial infarction); (2) from disorders which suddenly increase the resistance or pressure load (such as paroxysmal hypertension consequent to an adrenal medullary tumor); (3) from disorders which markedly elevate the inflow or venous load without impairing the myocardium (such as strenuous exertion in a person with mitral stenosis); or (4) from a combination of these factors. The most common cause is increased venous return in a recumbent subject with left ventricular strain consequent to hypertension. Of the numerous conditions which may produce increased venous return, nocturnal reabsorption of extracellular fluid from dependent parts is probably the most common. The therapeutic implications are obvious.
Cardiac asthma must be differentiated from the various primary diseases of the lungs which cause paroxysms of wheezing or panting. The differentiation is usually readily made by simple clinical measures; in doubtful instances measurements of circulation time may be of crucial value.
The management of cardiac asthma involves chiefly three therapeutic principles: (1) Control of precipitating factors (and especially treatment of latent edema and control of nocturnal cough); (2) measures aimed at reducing the inflow load (sitting position, morphine, venesection, tourniquets on extremities, positive pressure breathing); (3) attempts to reduce the amount of residual blood in the left ventricle (rapid digitalization, use of oxygen, and aminophyllin).
A severe attack of cardiac asthma associated with rapidly developing pulmonary edema constitutes one of the commonest and gravest of all medical emergencies. There are few conditions in the broad domain of internal medicine in which prompt and energetic therapy, based on an understanding of the mechanism of the disorder, can produce such immediate and gratifying benefit.
2007-06-08 05:17:04
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answer #1
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answered by Dr.Qutub 7
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Cardiac Asthma Symptoms
2016-10-16 11:56:56
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answer #2
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answered by ? 4
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Cardiac asthma is a clinical condition established by severe reflex blocking and may be from swelling of the lungs. An asthmatic type breathing brought on by abrupt obstruction of the pulmonary circulation. Cardiac asthma and pulmonary edema are indication of an approaching heart failure.
Cardiac asthma, a not so famous term, is used much less these days. Individuals in earlier times misidentified this disease and its connection with pulmonary edema or fluid in the lungs and now it has become clear that a cardiac asthma can take place even without fluid in the lungs.
Cardiac asthma and pulmonary edema are indication of an approaching heart failure. Both conditions are linked and have similar outcomes. One usually happens one after another. These are a life-threatening conditions and you should seek medical help right away if you feel any symptoms.
Internal Developments are Problems:
Cardiac asthma is ordinarily because of a major mechanical defect of the heart and may present to be life threatening quickly. It normally happens if the left side of the heart has a imbalance between its work load and work capacity abruptly. This incompatibility leads to many troubles, one of which is this cardiac asthma.
Accompanying this asthma, the abbreviated pumping strength of the heart goes to a accumulation of the fluid in the lungs. This build up of the fluid gets the air passages to constrict and soon will cause wheezing and other symptoms.
External Developments are Symptoms:
Numerous individuals believe that cardiac asthma is the same as several other primary diseases of the lungs which bring on wheezing or panting. This is incorrect and can be contradicted by clinical tests.
The simpliest way to differentiate cardiac asthma from other kinds of asthmas is from the symptoms. Many of the principal symptoms are shortness of breath with or without wheezing, raised breathing, shallow breathing, increased blood pressure, increased heart rate and a feeling of restlessness.
Otherwise, in some cases, cardiac asthma gets people to awaken breathless for several hours after sleeping, and must sit up to correctly breathe again. When people with this disease lay down too long the fluid will gather in the lungs and bring about shortness of breath. Not only that, this disease also causes swollen ankles.
These symptoms are very significant to differentiate this disease from others and be able to give the correct medications and treatments, which are chiefly centered on suppressing the night coughs, curb the edema, control of inflow load and the quantity of residual blood in the left ventricle.
Click this link for more information:
http://www.greatasthmatips.com/cardiacasthma.html
2007-06-07 13:43:33
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answer #3
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answered by Anonymous
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2016-07-27 03:34:50
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answer #4
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answered by Benito 3
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I've had asthma since i was a baby and I'm twenty years old now. Doctors can try many medications for it. I have not heard of a "cure" yet but there is a shot you can get that has a 50/50 chance of "curing" it but its not a 100% chance so dont base it on that... you can grow out of asthma as well and also if you have gained weight or feel you are overweight it helps majorly to get that off. A treatment that also worked well for my sister is advair (although she still has asthma hers has calmed down a lot) ..and most doctors will tell you where you live has a lot to do with your asthma/allergies..hope this helps
2016-03-13 07:17:20
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answer #5
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answered by Anonymous
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Cardiac asthma is congestive heart failure. It refers to the wheezing sound that is associated with congestive heart failure. It isn't true asthma.
2007-06-07 11:56:06
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answer #6
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answered by CDRN 6
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