Cardiac asthma is an attack of shortness of breath associated with circulatory disorders in the pulmonary circle. The most common cause of cardiac asthma is acute left ventricular failure amid hypertension (crisis), myocardial infarction, acute glomerulonephritis.
Cardiac asthma, causes, symptoms and first aid for cardiac asthma.
Cardiac asthma can develop with heart defects, coronary heart disease. Physical and mental stress provoke an attack of cardiac asthma against the background of diseases of the cardiovascular system.
Symptoms of Cardiac Asthma.
Cardiac asthma is manifested by suffocation, accompanied by coughing and wheezing. Most often, an attack occurs at night. The patient suddenly wakes up with a feeling of lack of air and fear of death. With cardiac asthma, he occupies a forced position – he cannot lie, jumps up, tends to the window. In serious condition, the patient is not able to move, so he sits with support on outstretched arms and legs down.
also increases to 120-150 beats per minute. Heart rhythm disturbances, increased blood pressure may occur. The time attack lasts from several hours to a day. In severe cases, it is repeated several times during the day. An attack may end without treatment or may be complicated by pulmonary edema and death.
First aid for heart asthma.
It is necessary to help the patient to take a comfortable position that alleviates the condition. Provide access to fresh air in the room. If possible, allow the patient to breathe oxygen. To reduce the filling of the pulmonary circulation, 1 ml of a 1% solution of morphine hydrochloride is injected subcutaneously or intravenously. Usually, 5-10 minutes after drug administration, the patient’s condition is relieved.
Diuretic drugs (40-200 mg of furosemide) are also used, which remove fluid from the body. You can reduce the blood supply to the pulmonary circulation using nitrates – they begin to be administered at a rate of 5-15 μg / min, then every 5 minutes the injection rate is increased by 10 μg / min.
Thus, nitroglycerin and isosorbide dinitrate are administered intravenously to eliminate the signs of left ventricular failure or lower blood pressure to 100 mmHg. Art. Hospitalization of the patient in some cases is necessary even after the end of an attack of cardiac asthma.
Based on the book “Quick help in emergency situations”.