THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM

Background: Numerous studies have identified the presence of adverse cardiovascular effects associated with hypothyroidism. The timely detection of individuals presenting with sub-clinical hypothyroidism has the potential to facilitate prompt intervention, consequently yielding a beneficial impac...

Full description

Bibliographic Details
Main Authors: Nirav Kumar, Chandra Bhanu Chandan, Ravi Vishnu Prasad, Gautam Kumar
Format: Article
Language:English
Published: Student's Journal of Health Research 2023-09-01
Series:Student's Journal of Health Research Africa
Subjects:
Online Access:https://sjhresearchafrica.org/index.php/public-html/article/view/676
_version_ 1797661993313763328
author Nirav Kumar
Chandra Bhanu Chandan
Ravi Vishnu Prasad
Gautam Kumar
author_facet Nirav Kumar
Chandra Bhanu Chandan
Ravi Vishnu Prasad
Gautam Kumar
author_sort Nirav Kumar
collection DOAJ
description Background: Numerous studies have identified the presence of adverse cardiovascular effects associated with hypothyroidism. The timely detection of individuals presenting with sub-clinical hypothyroidism has the potential to facilitate prompt intervention, consequently yielding a beneficial impact on cardiovascular morbidity and mortality rates. Objectives: The primary aim of this study is to investigate the potential correlation between subclinical hypothyroidism and left ventricular dysfunction. Additionally, we aim to explore the relationship between systolic and diastolic dysfunction in patients with subclinical hypothyroidism. Materials and Methods: In this study, a total of 60 cases of subclinical hypothyroidism, as well as 30 age- and sex-matched healthy control subjects, were included. Serum levels of thyroid-stimulating hormone (TSH), thyroxine (T4), and triiodothyronine (T3) were assessed, and individuals exhibiting subclinical hypothyroidism were subsequently subjected to a two-dimensional echocardiogram (2DEcho). Results: A statistically significant decrease was observed in peak early filling velocity (PE) (p<0.001) and early filling time velocity integral (Ei) (p<0.001). The statistical analysis revealed a significant reduction in the ratio of early and late peak velocities (PE/PA) (p<0.001), the ratio of time velocity integral of early and atrial filling (Ei/Ai) (p<0.001), and the ratio of the early peak to average velocity (PE/M) (p<0.001). The mean ejection fraction (EF) for the hypothyroid patients was 54.8 ± 5.54, which was slightly lower compared to the control subjects who had a mean EF of 55.6 ± 3.45. Conclusion:  In conclusion, the findings of this study indicate that sub-clinical hypothyroidism is associated with notable diastolic dysfunction, while systolic function remains largely unaffected. Recommendation: TSH and T4 need to be repeated at least once after 2-3 months. TPO antibodies which indicate an autoimmune etiology of hypothyroidism should be measured.
first_indexed 2024-03-11T18:53:42Z
format Article
id doaj.art-8197a732e5974f4c9d29bd9830306309
institution Directory Open Access Journal
issn 2709-9997
language English
last_indexed 2024-03-11T18:53:42Z
publishDate 2023-09-01
publisher Student's Journal of Health Research
record_format Article
series Student's Journal of Health Research Africa
spelling doaj.art-8197a732e5974f4c9d29bd98303063092023-10-11T07:29:02ZengStudent's Journal of Health ResearchStudent's Journal of Health Research Africa2709-99972023-09-014910.51168/sjhrafrica.v4i9.676THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISMNirav Kumar0Chandra Bhanu Chandan1Ravi Vishnu Prasad2Gautam Kumar3Department of Cardiology, IGIMS, Patna, Bihar, IndiaDepartment of Cardiology, IGIMS, Patna, Bihar, IndiaDepartment of Cardiology, IGIMS, Patna, Bihar, IndiaDepartment of Cardiology, IGIMS, Patna, Bihar, India Background: Numerous studies have identified the presence of adverse cardiovascular effects associated with hypothyroidism. The timely detection of individuals presenting with sub-clinical hypothyroidism has the potential to facilitate prompt intervention, consequently yielding a beneficial impact on cardiovascular morbidity and mortality rates. Objectives: The primary aim of this study is to investigate the potential correlation between subclinical hypothyroidism and left ventricular dysfunction. Additionally, we aim to explore the relationship between systolic and diastolic dysfunction in patients with subclinical hypothyroidism. Materials and Methods: In this study, a total of 60 cases of subclinical hypothyroidism, as well as 30 age- and sex-matched healthy control subjects, were included. Serum levels of thyroid-stimulating hormone (TSH), thyroxine (T4), and triiodothyronine (T3) were assessed, and individuals exhibiting subclinical hypothyroidism were subsequently subjected to a two-dimensional echocardiogram (2DEcho). Results: A statistically significant decrease was observed in peak early filling velocity (PE) (p<0.001) and early filling time velocity integral (Ei) (p<0.001). The statistical analysis revealed a significant reduction in the ratio of early and late peak velocities (PE/PA) (p<0.001), the ratio of time velocity integral of early and atrial filling (Ei/Ai) (p<0.001), and the ratio of the early peak to average velocity (PE/M) (p<0.001). The mean ejection fraction (EF) for the hypothyroid patients was 54.8 ± 5.54, which was slightly lower compared to the control subjects who had a mean EF of 55.6 ± 3.45. Conclusion:  In conclusion, the findings of this study indicate that sub-clinical hypothyroidism is associated with notable diastolic dysfunction, while systolic function remains largely unaffected. Recommendation: TSH and T4 need to be repeated at least once after 2-3 months. TPO antibodies which indicate an autoimmune etiology of hypothyroidism should be measured. https://sjhresearchafrica.org/index.php/public-html/article/view/676Left ventricular diastolic dysfunctionSubclinical hypothyroidismCardiac dysfunction,DiastolicEchocardiographic evaluation
spellingShingle Nirav Kumar
Chandra Bhanu Chandan
Ravi Vishnu Prasad
Gautam Kumar
THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
Student's Journal of Health Research Africa
Left ventricular diastolic dysfunction
Subclinical hypothyroidism
Cardiac dysfunction,
Diastolic
Echocardiographic evaluation
title THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
title_full THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
title_fullStr THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
title_full_unstemmed THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
title_short THE INCIDENCE OF LEFT VENTRICULAR DIASTOLIC DYSFUNCTION IN PATIENTS AFFECTED WITH SUBCLINICAL HYPOTHYROIDISM
title_sort incidence of left ventricular diastolic dysfunction in patients affected with subclinical hypothyroidism
topic Left ventricular diastolic dysfunction
Subclinical hypothyroidism
Cardiac dysfunction,
Diastolic
Echocardiographic evaluation
url https://sjhresearchafrica.org/index.php/public-html/article/view/676
work_keys_str_mv AT niravkumar theincidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT chandrabhanuchandan theincidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT ravivishnuprasad theincidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT gautamkumar theincidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT niravkumar incidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT chandrabhanuchandan incidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT ravivishnuprasad incidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism
AT gautamkumar incidenceofleftventriculardiastolicdysfunctioninpatientsaffectedwithsubclinicalhypothyroidism