Paroxysmal tachycardia is one of thenumerous variants of cardiac arrhythmias, in which there is a sudden change in cardiac activity toward an increase in the number of cardiac contractions. The number of cuts can be from 140 to 200 beats per minute.
As a result of changes in the frequency of contractilemovements there are various hemodynamic disorders that adversely affect the patient's well-being. During an attack, the diastole phase is broken, it shortens, as a result of this the ventricles of the heart are not enough, and with strong paroxysm generally lean with blood. All this causes a decrease in such indicators as impact and minute volume of blood circulation. The body ceases to be saturated with blood, acute anomalies of the brain, kidneys, intestines, and lungs are sensing its shortage. Even the heart muscle itself feels a sharp deficit of blood and dissolved gases and nutrients in it. The longer the paroxysmal tachycardia, the worse the clinical picture will be. Because of the narrowing of the peripheral blood vessels, a redistribution of blood flow takes place, which tries to compensate centralized blood circulation and increase the falling pressure. If the compensatory mechanisms are violated, cardiac shock, an attack of angina pectoris, a myocardial infarction can occur. the blood flow in the coronary arteries feeding the heart sharply changes. Change in blood circulation in the brain structures leads to syncope, in kidney tissue - to anuria. Long-term paroxysmal tachycardia can even be the cause of necrosis in the intestine in very severe cases.
The onset of an attack of cardiac paroxysmpasses unnoticed for the patients themselves. They can say with certainty when it started, because at this moment they feel a sharp push in the area behind the breastbone, and when it is over, because the end of the attack sharply cuts off the heartbeat. A typical picture of the attack: the patients look frightened, pale, with a cold, sticky sweat. They can rush during paroxysms, unable to find a place because of the anxiety that has engulfed them. Jugular veins swell and markedly pulsate in time with the pulse.
If paroxysmal tachycardia is triggered by patientson its own, then soon there is heart failure, which progresses and does not respond to medicinal effects. Usually two main forms of such arrhythmias are distinguished: supraventricular and ventricular. Nadzheludochkovaya paroxysmal tachycardia has a lot of options associated with the sudden emergence of pathological foci of automatism, as well as reciprocal excitations. When arrhythmia is very dangerous, when the atrium and ventricles begin to shrink asynchronously, heart failure can quickly and refractorily treat.
Paroxysmal tachycardia, whose treatmentit is necessary to conduct as early as possible, has a number of features that are related to the nature and the specific type of rhythm disturbance. Sometimes patients themselves can stop their suddenly emerging symptom. It is associated with a reflex action on the vagus nerve. You can throw your head back, click on the area of the projection of the carotid artery, try to breathe out or inhale with a closed voice gap, press on the eyeballs, inflate the rubber balloon, ball or wipe the face with ice cubes. It is especially good to carry out reflex actions after preliminary administration of beta-blockers, which significantly increase the effectiveness of all these methods. Drug therapy is carried out only under the supervision of the attending physician.
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