Spectral Analysis of Heart Rate Variability for Early Prediction of Pregnancy-Induced Hypertension

Pal, G K; Shyma, P.; Habeebullah, Syed; Shyjus, P.; Pal, Pravati

doi:10.1080/10641960802621333

Cited by 35 publications

(23 citation statements)

References 23 publications

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“…After 15 minutes of supine rest on a couch in AFT lab, ECG was recorded for 5 minutes for short-term HRV analysis following the standard procedure as described earlier [24]. For recording of HRV, recommendation of the Task Force on HRV was followed [25].…”

Section: Methodsmentioning

confidence: 99%

Sympathovagal Imbalance in Prehypertensive Offspring of Two Parents versus One Parent Hypertensive

Pal

Nanda

et al. 2011

International Journal of Hypertension

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Objective. Though prehypertension has strong familial predisposition, difference in pathophysiological mechanisms in its genesis in offspring of both parents and single parent hypertensive have not been elucidated. Methods. Body mass index (BMI), waist-hip ratio (WHR), basal heart rate (BHR), blood pressure (BP), HR and BP response to standing, deep breathing difference, BP response to handgrip and spectral indices of heart rate variability (HRV) were analyzed in normotensive offspring of two parents hypertensive (Group I), normotensive offspring of one parent hypertensive (Group II), prehypertensive offspring of two parents hypertensive (Group III) and prehypertensive offspring of one parent hypertensive (Group IV). Results. Sympathovagal imbalance (SVI) in prehypertensive offspring was observed due to increased sympathetic and decreased vagal activity. In group III, SVI was more prominent with greater contribution by vagal withdrawal. LF-HF ratio, the marker of SVI was correlated more with diastolic pressure, 30 : 15 ratio and E : I ratio in prehypertensives and the degree of correlation was more in group III prehypertensives. Conclusion. Vagal withdrawal plays a critical role in development of SVI in prehypertensive offspring of hypertensive parents. The intensity of SVI was more in offspring of two parents hypertensive compared to single parent hypertensive.

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Section: Methodsmentioning

confidence: 99%

Sympathovagal Imbalance in Prehypertensive Offspring of Two Parents versus One Parent Hypertensive

Pal

Nanda

et al. 2011

International Journal of Hypertension

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“…The data analysis was then done using the Kubios HRV analyser. The spectral indices of HRV assessed were 10 HFnu is a measure of parasympathetic activity and LFnu and LF/HF ratio are measures of sympathetic activity 10 .…”

Section: Discussionmentioning

confidence: 99%

A study on analysis of Heart Rate Variability in hypertensive individuals

Natarajan

Balakrishnan

Ukkirapandian

2014

Int J of Biomed & Adv Res

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“…During the first trimester of normal healthy pregnancy, a dominant HF exists (0.15–0.40 Hz), which is consistent with a robust vagal control of heart rate (16). By the third trimester, however, a gradual increase in the LF:HF ratio indicates that a biphasic change in autonomic inputs occurs, characterized by a vagal withdrawal over heart rate and a dominant sympathetic tone (15, 16, 143). Kuo et al, observed that this biphasic shift towards augmented sympathetic tone in late pregnancy is in part attributed to aortocaval compression by the gravid uterus (16, 144, 145).…”

Section: The Autonomic Regulation Of Cardiovascular Physiological Adamentioning

confidence: 99%

Preeclampsia and the brain: neural control of cardiovascular changes during pregnancy and neurological outcomes of preeclampsia

2016

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Preeclampsia (PE) is a form of gestational hypertension that complicates ~ 5 percent of pregnancies worldwide. Over 70 percent of the fatal cases of PE are attributed to cerebral edema, intracranial hemorrhage, and eclampsia. The etiology of PE originates from abnormal remodeling of the maternal spiral arteries, creating an ischemic placenta that releases factors that drive the pathophysiology. An initial neurological outcome of PE is the absence of the autonomically regulated cardiovascular adaptations to pregnancy. PE patients exhibit sympathetic overactivation, in comparison to both normotensive pregnant and hypertensive non-pregnant females. Moreover, PE diminishes baroreceptor reflex sensitivity (BRS) beyond that observed in healthy pregnancy. The absence of the cardiovascular adaptations to pregnancy, combined with sympathovagal imbalance and a blunted BRS leads to life-threatening neurological outcomes. Behaviorally, the increased incidences of maternal depression, anxiety, and post-traumatic stress disorder (PTSD) in PE are correlated to low fetal birth weight, intrauterine growth restriction (IUGR) and premature birth. This review addresses these neurological consequences of PE that present in the gravid female both during and after the index pregnancy.

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Spectral Analysis of Heart Rate Variability for Early Prediction of Pregnancy-Induced Hypertension

Cited by 35 publications

References 23 publications

Sympathovagal Imbalance in Prehypertensive Offspring of Two Parents versus One Parent Hypertensive

Sympathovagal Imbalance in Prehypertensive Offspring of Two Parents versus One Parent Hypertensive

A study on analysis of Heart Rate Variability in hypertensive individuals

Preeclampsia and the brain: neural control of cardiovascular changes during pregnancy and neurological outcomes of preeclampsia

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