Effect of Aterial Stiffness on Myocardial Work in Patients With Hypertension

• Conditions: Hypertension; Heart Disease, Hypertensive
• Interventions: Other: Echocardiography and pulse wave velocity measurement

• Registration Number: NCT04573257
• Lead Sponsor: Chongqing Medical University

Brief Summary

Hypertension is a serious threat to human health and a major global economic burden.Chronic hypertension can cause left ventricular remodeling and loss of function, eventually leading to heart failure.Exploring the early changes and mechanisms of left ventricular cardiac function caused by hypertension, and to identify individuals who may develop into serious heart injury, may play a positive role in the early prevention and control of heart failure caused by hypertension.Therefore, this study intend to use two-dimensional speckle tracking technology, a non-invasive method to measure left ventricular pressure-strain loop to quantitatively reflect cardiac work index , to study different hypertension patients with normal left ventricular ejection fraction the change of the global and local cardiac work, and the influence of aterosclerosis in thes patients to myocardial work, and explore their relationship with ventricular remodeling and abnormal diastolic function.To improve the understanding of the pathophysiology of hypertension, hypertensive heart disease and heart failure, and to provide scientific support for the early prevention and control of such diseases.

Detailed Description

Hypertension is a serious threat to human health and a major global economic burden.Chronic hypertension can cause left ventricular remodeling and loss of function, eventually leading to heart failure. Ventricular remodeling in hypertensive patients is an adaptive and decompensating response to persistent elevated blood pressure and increased myocardial work load. Exploring the early changes and mechanisms of left ventricular cardiac function caused by hypertension, and to identify individuals who may develop into serious heart injury, may play a positive role in the early prevention and control of heart failure caused by hypertension.Therefore, this study intend to use two-dimensional speckle tracking technology, a non-invasive method to measure left ventricular pressure-strain loop to quantitatively reflect cardiac work index , to study different hypertension patients with normal left ventricular ejection fraction (including hypertension without heart damage performance with different degree of high blood pressure, hypertension with diastolic dysfunction , hypertension with left ventricular hypertrophy ) the change of the global and local cardiac work, and the influence of aterosclerosis in thes patients to myocardial work, and explore their relationship with ventricular remodeling and abnormal diastolic function.To improve the understanding of the pathophysiology of hypertension, hypertensive heart disease and heart failure, and to provide scientific support for the early prevention and control of such diseases.

Study Timeline

• Status Verified: 2020-09
• Study Start: 2020-09-10
• Study First Submitted: 2020-09-21
• Study First Submitted QC: 2020-09-28
• Last Update Submitted: 2020-09-28
• Study First Posted: 2020-10-05
• Last Update Posted: 2020-10-05
• Primary Completion: 2021-01
• Study Completion: 2021-03

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 160

Inclusion Criteria

Age 18-65 years

The diagnostic criteria of hypertension were blood pressure systolic blood pressure ≥140mmHg and/or diastolic blood pressure ≥90mmHg in the clinic or receiving antihypertensive drug treatment

The normal high-value diagnostic criteria for hypertension were systolic blood pressure 130-139mmhg and or diastolic blood pressure 85-90mmhg in the clinic

LVEF > 50%

Exclusion Criteria

coronary atherosclerotic heart disease or symptoms of angina

Cardiomyopathy

Valvular heart disease

Diabetes

Atrial fibrillation

Renal function damage

Pregnancy

Secondary hypertension

Chemotherapy for malignant tumors

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
normotensive group	Echocardiography and pulse wave velocity measurement	The medical history and basic examination and examination information were collected. Echocardiography including conventional cardiac ultrasound, tissue Doppler and two-dimensional speckle tracking to measure myocardial strain and noninvasive myocardial work were carried out , and the brachial-ankle pulse wave velocity was measured in parallel.
Prehypertension group	Echocardiography and pulse wave velocity measurement	The medical history and basic examination and examination information were collected. Echocardiography including conventional cardiac ultrasound, tissue Doppler and two-dimensional speckle tracking to measure myocardial strain and noninvasive myocardial work were carried out , and the brachial-ankle pulse wave velocity was measured in parallel.
hypertensive group	Echocardiography and pulse wave velocity measurement	The medical history and basic examination and examination information were collected. Echocardiography including conventional cardiac ultrasound, tissue Doppler and two-dimensional speckle tracking to measure myocardial strain and noninvasive myocardial work were carried out , and the brachial-ankle pulse wave velocity was measured in parallel.

Primary Outcome Measures

Name	Time	Method
myocardial work	2020.09-2021.01	myocardial work measured by non-invasive left ventricular pressure-strain loop（2D speckle tracking echocardiography method by using the GE Vivid E95 ultrasound system ）

Secondary Outcome Measures

Name	Time	Method
brachial-ankle pulse wave velocity	2020.09-2021.01	brachial-ankle pulse wave velocity measured by OMRON BP-203RPEIII arteriosclerosis detector

Trial Locations

Locations (1)

The First Affiliated Hospital of Chongqing Medical University; 🇨🇳 Chongqing, China