Premature Ventricular Contraction

1002 words, 5 pages

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Premature Ventricular Contraction
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Premature Ventricular Contraction
Premature Ventricular Contraction is premature stimulation of the heart that occurs under the influence of impulses originating from different parts of the conduction system of the ventricles. The source of ventricular arrhythmia in most cases the branching bundle of His and Purkinje fibers. Ventricular premature beats are the most common disorder of cardiac rhythm. Its frequency depends on the method of diagnosis and contingent surveyed. When you register 12-lead ECG at rest are determined by ventricular extra systoles in about 5% of... View More »

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The main electrocardiographic signs of ventricular extra systoles are:
1. premature extraordinary appearance on the ECG ventricular complex modified QRS ';
2. significant expansion and deformation of complex extra systolic QRS ';
3. location of RS-T segment and T wave beats discordant direction of the main wave of the complex QRS ';
4. the absence of prior ventricular arrhythmia P wave;
5. presence in most cases after ventricular extra systoles full compensatory pause.

The course and prognosis
The course and prognosis of ventricular arrhythmia depends on its shape, the presence or absence of organic heart disease and severity of myocardial dysfunction of the ventricles. It is proved that in patients without structural pathology of the cardiovascular system of ventricular extra systoles, even frequent and complex, does not significantly affect the prognosis. At the same time in the presence of organic heart disease ventricular extra systoles can significantly increase the risk of sudden cardiac death and total mortality by initiating persistent ventricular tachycardia and ventricular fibrillation (Garcia & Macle, 2011, 187-191).

Treatment and secondary prevention
With ventricular arrhythmia pursue two goals - to eliminate the associated symptoms and improve prognosis. At the same time take into account the class of arrhythmia, the presence of organic heart disease and its nature and severity of myocardial dysfunction, determine the risk of potentially fatal ventricular arrhythmias and sudden death (Abdulla, 2001, 131-136). In ...

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