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Year 2019

Volume: 6 , Issue: 2

Print ISSN:-2394-2118

Online ISSN:-2394-2126

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Indian Journal of Clinical Anatomy and Physiology


An appraisal on the time-domain parameters of short-term heart rate variability analysis in the study protocol: comparison between hypothyroid subjects and normal individuals


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Author Details: A B. Baskar*,N Ethiya

Volume : 5

Issue : 4

Online ISSN : 2394-2126

Print ISSN : 2394-2118

Article First Page : 425

Article End Page : 429


Abstract

Introduction: Heart rate variability analysis is being widely used in the study of endocrine disorders such as hypothyroidism. It is well established that cardiac autonomic dysfunction occurs in hypothyroidism and is also confirmed in this study.
Aim: To find out the effectiveness of each time- domain parameters of short- term HRV analysis done in time-domain analysis method.
Materials and Methods: 25 Hypothyroid subjects are obtained (study group) from the department of endocrinology and metabolism, govt. Rajaji Hospital attached to Madurai Medical College, Madurai. And 25 normal subjects who are age and sex matched with the study group form the control group. All the persons are free from any other illness. Serum TSH levels are estimated in all the subjects. ECG recording in Lead II is performed in all the subjects using computerized ECG machine enabled with physio-pac software and time domain parameters are obtained by short term HRV analysis method. The results are tabulated and analysed by applying student- t test.
Results and Conclusion: Time domain parameters with increasing mathematical complexity (SDRR, RMSSD) yield good correlation between the two study groups.

Keywords: Hypothyroidism, Heart-rate variability, Time-domain analysis method, Serum TSH level.

Doi :-https://doi.org/10.18231/2394-2126.2018.0099