Hemodynamic and Echocardiographic Characteristics and the Presence of Pulmonary Hypertension in Patent Ductus Arteriosus Patients who Underwent Transcatheter Closure

Po Wei Wu, Shu Jen Yeh, Pi Chang Lee, Ke Ting Pan, Chih Wei Tien, Yen Chun Chao, Shan Miao Lin, Ming Ren Chen, Wei Li Hung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We investigated the hemodynamic parameters of pediatric PDA patients and focused on the influence of PDA size on pulmonary arterial pressure and the prevalence of pulmonary hypertension. A total of 52 patients aged between 2 months and 20 years who received transcatheter closure of a PDA from January 2018 to June 2022 in our institution were retrospectively recruited. Their hemodynamic parameters collected both by echocardiography and by cardiac catheterization were analyzed to delineate the influence of PDA size on the pulmonary vascular system. The echocardiographic-based ductal size and indexed PDA size were 1.93 mm (1.15–6 mm) and 4.05 mm/m2 (2.03–25.47 mm/m2), respectively. The pulmonary artery pressure measured was 20.83 mmHg (8–45 mmHg). We found a positive correlation between indexed PDA size and mean pulmonary arterial pressure (mPAP) (Pearson correlation coefficient = 0.47, p < 0.001). A subgroup analysis showed that 28 patients (53.8%) developed pulmonary hypertension (PH) (defined as mPAP > 20 mmHg). The median age of the PH group was 1.02 years [range: 0.19–8.64], which was significantly younger than the non-PH group's median age of 3.43 years [range: 0.42–19.96] (p = 0.001). The indexed PDA size for the PH group, 4.69 mm/m2, was significantly higher than that of the non-PH group, 3.2 mm/m2 (p = 0.004). The major risk factor for patients with PH was the PDA/BSA index, with an OR of 2.181 (95% CI, 1.224–3.887). Our demographic data showed younger patients with a higher PDA/BSA index are more likely to develop pulmonary hypertension.

Original languageEnglish
Pages (from-to)1262-1270
Number of pages9
JournalPediatric Cardiology
Volume44
Issue number6
DOIs
StatePublished - Aug 2023

Keywords

  • Patent ductus arteriosus
  • Pulmonary hypertension
  • Pulmonary vascular resistance
  • Transcatheter closure

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