Analysis of relationship between P wave dispersion and diagnosis of pulmonary arterial hypertension and risk stratification

Jun Luo; Jingjie Sun; Li Xu; Jingyuan Chen; Yusi Chen; Wenjie Chen; Haihua Qiu; Xiaoqin Luo; Sisi Chen; Jiang Li

doi:10.1016/j.jelectrocard.2023.08.002

Analysis of relationship between P wave dispersion and diagnosis of pulmonary arterial hypertension and risk stratification

J Electrocardiol. 2023 Nov-Dec:81:94-100. doi: 10.1016/j.jelectrocard.2023.08.002. Epub 2023 Aug 12.

Authors

Jun Luo¹, Jingjie Sun¹, Li Xu², Jingyuan Chen¹, Yusi Chen¹, Wenjie Chen¹, Haihua Qiu¹, Xiaoqin Luo¹, Sisi Chen¹, Jiang Li³

Affiliations

¹ Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China.
² Department of the Second Chest Medicine, The Affiliated Cancer Hospital of Xiangya School of medicine, Central South University, Changsha, Hunan 410013, China.
³ Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China. Electronic address: lijiangcs@csu.edu.cn.

PMID: 37657302
DOI: 10.1016/j.jelectrocard.2023.08.002

Abstract

Background: The aim of this study was to measure the P-wave dispersion(PWD) in the ECG of patients with pulmonary arterial hypertension(PAH).

Methods: A total of 103 PAH patients were collected, including 55 patients related with congenital heart disease(CHD) and 44 patients with idiopathic pulmonary arterial hypertension(IPAH). In addition, 30 CHD patients without PAH (nPAH-CHD group) and 30 healthy controls (HCG group) were collected as control. Patients in the PAH group were categorized into the low-risk group (30 cases), moderate-risk group (53 cases) and high-risk group (20 cases), followed by comparison of PWD difference between groups. The ROC curve was used to evaluate the diagnostic efficacy of PWD on PAH-CHD and IPAH.

Results: The levels of PWD and maximum P wave duration(Pmax) in PAH-CHD and IPAH group were significantly higher than those in nPAH-CHD and HCG group (P < 0.05). PWD level was positively correlated with right ventricular end-diastolic diameter(RVD), right atrial end-systolic diameter(RAS), mean pulmonary arterial pressure(mPAP), pulmonary vascular resistance(PVR)(r = 0.407, 0.470, 0.477, 0.423, P < 0.001), and was negatively correlated with systolic displacement of tricuspid valve annulus(TAPSE) level (r = -0.551, P < 0.001). After risk quantification in 103 PAH patients, we found that PWD was significantly different among the low-risk, moderate-risk and high-risk groups (43.89 ± 9.91 vs. 51.29 ± 6.61, 62.15 ± 10.44, P < 0.001). CHD-PAH and IPAH were identified by PWD with a cut off value of 41.5 ms (P < 0.001), and a cut off value of 41.45 ms (P < 0.001), respectively.

Conclusions: PWD might be an effective ECG indicator for PAH, which might be used as a relatively economical indicator for PAH patients to assist in early diagnosis, disease severity assessment and prognosis evaluation.

Keywords: Congenital heart disease; Idiopathic pulmonary hypertension; P wave dispersion; Pulmonary arterial hypertension; Risk stratification.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrocardiography
Familial Primary Pulmonary Hypertension
Humans
Hypertension, Pulmonary* / diagnosis
Pulmonary Arterial Hypertension*
Risk Assessment