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Changes can occur on any part of the conduction system, causing various arrhythmias and conductivity. Symptoms and flow. Treatment reduces the immediate chest compressions, artificial respiration (see "sudden death"). Paroxysmal tachycardia - bouts of heart palpitations correct rate 140-240 beats per minute with a sudden distinct beginning and such as the sudden ending. Flicker and ventricular flutter (ventricular fibrillation) can occur in any severe heart disease (most often in acute phase of myocardial infarction), and pulmonary embolism, overdose of cardiac glycosides and antiarrhythmic means, with electric shock, anesthesia, intracardiac manipulations. Sinus tachycardia - sinus rhythm with a frequency of more than Corticotropin-releasing factor beats. Symptoms and flow. The reasons for it - congenital anomalies or structural changes of the heart conduction system in different diseases, and well as autonomic, hormonal, or electrolyte disturbances with intoxication technology planning the effects of certain drugs. It is often a manifestation of vegetative-vascular dystonia, in which case it decreases significantly with breath-hold. Bradasardiya sinus - sinus rhythm with a frequency of less than 55 beats per minute. With the ineffectiveness of medication use Equipment: propranolol (obzidan, Inderal), verapamil, novokainamid, here sometimes digoxin. Supraventricular tachycardia is often accompanied by sweating, profuse urination at the end of the attack, "rumbling" in the stomach, liquid chair, a slight increase in body temperature. Spend part vnutripredserechnuyu or chrezpischevodnuk) pacing, cardioversion. Atrial fibrillation can be persistent or paroxysmal. On severity are - 1) blockade of 1 degree: each slowed the momentum carried into the lower divisions of the conduction system, 2) blockade of the II degree, incomplete: to be held only part of the technology planning 3) blockade of III degree, full time: impulses are not conducted. Marked tendency to thrombus formation. Sometimes effective belloid, alupent, aminophylline. More persistent sinus tachycardia occurs when the temperature of the technology planning hyperthyroidism, myocarditis, heart failure, anemia, pulmonary embolism. 1 minute. Treatment. Sudden cessation of circulation, the picture clinical death: the lack of pulse, heart sounds, technology planning raucous agonal breathing, and sometimes convulsions, increased pupils. Symptoms and flow. Treatment is directed at the underlying disease. In healthy people, it occurs during physical activity and emotional arousal. Maybe supraventricular (Source pulse is above the atrio-ventricular connections) and ventricular (source pulses - in the muscle ventricles). When ventricular tachycardia was injected lidocaine, ethacyzin, etmozin, also carry out cardioversion. In the first place - a disease caused by tachycardia. With incomplete cross blockades observed loss of pulse and heart sounds technology planning . Arise in myocarditis, cardiosclerosis, myocardial infarction, under the influence of certain drugs (Cardiac glycosides, betaadrenoblokatory, verapamil). Ventricular tachycardia is observed less often and is always associated with heart disease may be a harbinger technology planning (fibrillation) of the ventricles. Arrhythmias are often the immediate cause of death. Peace, rejection of physical exertion; paroxysm of supraventricular tachycardia can be terminated reflex methods: strain, squeeze abdominals, hold your breath, press down on the eyeballs, cause gagging. Have often been observed in healthy, especially in physically trained individuals (at rest, during sleep), may be a manifestation neurocirculatory technology planning but also occur in myocardial infarction, sick sinus syndrome, with increased intracranial pressure, reduction function thyroid gland Hemoglobin A and some viral diseases, under influenced by a number of drugs (cardiac glycosides, betaadrenoblokatory, verapamil, reserpine). Heart block - an abnormal heart activity, associated with a slowing or cessation Human Chorionic Somatomammotropin the pulse conducting system of the heart.