Cardiac -arrhythmias::
It is the disorder of origin rate rhythm conduction and spread of impulse in the heart Tachycardia is the term denoting an increase in heart rate while bradycardia denotes a decrease in heart rate
Palpitation is continuous and fast beating of the heart
various important types of irregularities of rhythm named as arrhythmias of the heart are: extrasystole paroxysmal supraventricular tachycardia atrial flutter atrial fibrillation and ventricular fibrillation
Extrasystoles:: These are premature (out of order ) beats (or depolarizations ) that occur before the next expected beats this may be atrial ventricular or nodal depending on its site of origin they are of clinical significance
Paroxysmal Supraventricular Tachycardia:: It is the condition in which the heart rate suddenly increases to 150-200 beats per min and 1:1 AV conduction is maintained
Atrial-flutter: It is a very rapid but regular beating of atria with a rate between 240-400 per min
Atrial-fibrillation:: It is a rapid continuous chaotic and irregular beating of atria it is of great danger
Ventricular Fibrillation :: It is an irregular and chaotic ventricular arrhythmia with a rapid rate and disorganized spread of impulses throughout the ventricular myocardium it is very dangerous
Heart Block:: It is the term applied to a condition in which the nerve impulses are delayed or fail to get through from their source in the right atrium to the ventricles it is obstruction in the conduction of the impulse in the heart thus suddenly decreasing the heart rate and the pulse rate
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