Abstract
The HRV is the Physiological variation of Beat-to- Beat variation in heartbeat. This variation is controlled to on balance by the autonomic nervous system (sympathetic and parasympathetic). Snake bite is the most common problem in tropical and subtropical countries. Snake bite is related to highest mortality of poorly developed countries mainly the farmers suffered a lot. As per the World Health Organization’s list the snake bite is neglected tropical diseases. Immediately after the snake bite toxicity of the venom enters into circulation and affects various parts of the body. The snake venom acts on the Autonomic nervous system, and affect the heart and reduces the heart rate. The HRV is a clinical and investigational tool for assessing the cardiac performance. Analysis of Heart Rate variability is one of the non-invasive electrocardiographic markers to find out the changes HRV in snake bite patients. In snake bite envenomation the increases HRV (P-Value is <0.05) is considered as the statistically significant. We conclude that autonomic control of the heart rate measured by heart rate variability was altered on acute action of snake envenomation. Initially there was parasympathetic dominance in snake bite and treatment with antivenom lead to sympathetic dominance. Keywords: Heart rate variability, low frequency, high frequency, envenomation.
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