The role of transthoracic echocardiography in evaluating right ventricular parameters in chronic obstructive pulmonary disease

Abstract

Cardiac symptoms are a characteristic feature of chronic obstructive pulmonary disease (COPD), a disorder with lately achieved recognition as a systemic illness according to established standards. The research’s objective was aimed at investigating the transthoracic echocardiography role in assessing right ventricular (RV) dysfunction among individuals diagnosed with COPD, as well as to examine the potential correlation between blood pro B-type natriuretic peptide (BNP) concentrations + and this diagnostic procedure. Arterial blood gasses, spirometry, echocardiography, and serum pro BNP were done for 80 COPD patients and 20 healthy smokers, and some echocardiographic parameters were correlated with degree of airflow limitation. 77.5% of COPD cases exhibited pulmonary hypertension (PHTN), and on classifying our COPD patients, it was found that 65% of patients in group II had PHTN and 90% of patients in group III had PHTN. Systolic pulmonary artery pressure (SPAP), mean pulmonary arterial pressure (MPAP), right ventricular mid diameter (RVMD), right ventricular basal diameter (RVBD), right ventricular longitudinal diameter (RVLD), right ventricular outflow tract (RVOT) above pulmonary and aortic valve, and tricuspid annular plane systolic excursion (TAPSE) along with RVEF exhibited a significant variance among all groups. A negative correlation was observed among forced expiratory volume (FEV) 1% and (RVMD as well as RVBD) and between Pro BNP and (TAPSE and RVEF). PHTN was found in 77.5% of COPD patients and is negatively correlated with FEV1%. Serum pro BNP level exhibits a negative correlation with FEV1% in stable COPD patients.