Evaluation of the Relationship between Chest Radiography Findings and Pulmonary Artery Pressure during Right Heart Catheterization

Document Type : Original Article

Authors

1 Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

2 Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

Background: Pulmonary artery hypertension is difficult to diagnose because of its nonspecific symptoms. Although echocardiography and more accurately catheterization can recognize pulmonary artery pressure, chest X-ray is widely used because of its availability.
 
Objectives: This study was to evaluate the accuracy of chest radiography parameters for the estimation of pulmonary artery pressure.
 
Methods: This cross-sectional study included 81 subjects with a definite diagnosis of pulmonary artery hypertension. Mean pulmonary artery pressure (mPAP) was determined by catheterization. Hilar enlargement, projection of the right heart border (PRHB), hilar enlargement + PRHB, and the ratio of these parameters to the thoracic diameter were compared to mPAP to evaluate correlations.
 
Results: The average mPAP was 74.7±21 (ranging from 28 to 120 mmHg). Spearman's test revealed that mPAP had a significant correlation with a hilar enlargement (r=0.489, P<0.001), hilar/thoracic ratio (r=0.482, P<0.001), hilar enlargement + PRHB (r= 0.517, P<0.001), and hilar + PRHB/thoracic ratio (r=463, P<0.001).
 
Conclusion: Hilar enlargement and hilar/thoracic ratio on the chest radiography are proper parameters for the estimation of pulmonary artery pressure.
 

Keywords

Open Access Policy: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/

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Razavi International Journal of Medicine
Volume 11, Issue 1
February 2023
Pages 34-37

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