WHAT DOES THE FINDING OF MINIMAL MITRAL REGURGITATION MEAN?

Abstract

Objective: bjective: Leonardo da Vinci intuited that the cardiac valves were key to the functioning of the heart. Minimal mitral regurgitation in young's is often interpreted as haemodynamically insignificant. Morphological changes in the arterial wall can lead to mitral regurgitation, left atrial enlargement, and atrial fibrillation (AF). The aim is to know the measures of the central haemodynamic parameters (CHPs), brachial blood pressure (BP) values, and the prevalence of headache and AF, in both genders with minimal mitral regurgitation. Design and method: Design and Methods: For this cross-sectional retrospective study, data were collected from 323 patients: Female/Male 189/134, from 20 to 89 years old, divided and analyzed in each one of the 7 decades. Some patients were unaware of having hypertension, others with and without antihypertensive therapy. The finding of AF was confirmed with the presence of brief phases in the 24hs-Holter monitoring. The CHPs were measured with a SphygmoCor System PVX (AtCor-Medical Australia), a validated device employing the high-fidelity technique of applanation tonometry according to established protocols. Also, the difference of Augmentation Index (Diff-AIx) between the normal levels and the observed values was assessed according to normal range by age. Results: Results: Average BP was higher than normal: Female- Male 141/83–137/82 mmHg. CHPs and BP values increased in each one of the 7 decades, both genders. Frequently, the patients were symptomatic, among the female/male the headache was found in 61%/25%, with a high prevalence of up to 69 years old in 85%/88% of them. Also, they presented symptoms such as sweating, asthenia, thoracalgia, palpitations. Hypertension would not be silent chronic disease. AF was found in 49 patients (15%), female/male 22/ 27 (12%/20%), increasing the prevalence with age, after 50/60 years old was observed in 68/78%. Conclusions: Conclusions: Minimal mitral regurgitation would not be a bystander, it can be the consequence of the higher values of the brachial BP, the central haemodynamic parameters and the Diff-AIx. The appearance of minimal mitral regurgitation principally among younger can indicate that the brachial BP found is higher than normal and the optimal levels should be reassessed.