Cumulative Blood Pressure Load and Left Ventricular Mass

Arterial Hypertension Clinical Trial

Official title: Correlation Between 24-hour Blood Pressure Load and Left Ventricular Mass: the CAPAMAVI

Status Recruiting

Clinical Trial Summary

Delay in the diagnosis of systemic arterial hypertension (SAH) causes morbid hypertensive status with target organ damage (TOD). Screening and surveillance of SAH used to be performed through self-measurement of blood pressure (SMBP) or routinary in clinic blood pressure measurement (CBPM).

It is essential to determine the correlation between the cumulative blood pressure load through ABPM and the left ventricular mass identified by three-dimensional transthoracic ultrasound (3D-TTE). We postulate a directly proportional and statistically significant association between cumulative blood pressure load and left ventricular mass (LVM).

Clinical Trial Description

Delayed diagnosis of SAH causes a morbid hypertensive state, with target-organ damage (TOD):

brain, kidney, and heart. An early diagnosis and proper follow-up of patients with SAH prevents and reduces comorbidities associated with TOD. Screening and follow-up of SAH are traditionally performed by routine self-monitoring of blood pressure (HBPM) or clinic blood pressure measurement (CBPM).

Ambulatory blood pressure monitoring (ABPM) consists of measuring BP every fifteen and thirty minutes for twenty-four hours, using a sphygmomanometer adapted to a portable monitor, which led to the recognition of SAH phenotypes often not identified through SMBP or CBPM. The ABPM offers three types of information: a) the mean BP in twenty-four hours, day and night; b) BP variability; and c) cumulative BP load. Cumulative BP load is the percentage of BP measurements above 135/85 mmHg.

Increased LVM is a consequence of chronic hypertension and early sign of TOD at the cardiac level. It has been shown that the variability in nocturnal diastolic BP correlates significantly with LVM, independently of mean BP load. It is likely that an elevated BP load according to ABPM correlates with higher TOB; however, at the moment, there is no standardized value of BP load that allows predicting the increase in the LVM. For this reason, a standardized cut-off of cumulative BP load is helpful for understanding ABPM in the screening SAH. ;

Related Conditions & MeSH terms

• Arterial Hypertension
• Hypertension

• NCT number: NCT05465746
• Study type: Observational
• Source: Instituto Ecuatoriano del Corazón
• Contact: Patricia Delgado-Cedeño, MD
• Phone: +593 997829415
• Email: pdelgadodevargas@gmail.com
• Status: Recruiting
• Start date: July 1, 2022
• Completion date: February 28, 2023