Larger pulmonary artery to ascending aorta ratios are associated with decreased survival of patients undergoing pulmonary endarterectomyCentral MessagePerspective

JTCVS Open

Irene Lang, MD¹  Paul Apfaltrer, MD¹  Christian Gerges, MD¹  Helmut Prosch, MD¹  Bernhard Moser, MD, PhD, MBA²  Jürgen Thanner, MD²  Walter Klepetko, MD²  Hendrik Jan Ankersmit, MD, PhD²  Shahrokh Taghavi, MD²  Panja M. Boehm, MD²  Stefan Schwarz, MD²  Cecilia Veraar, MD³  Mario Gerges, MD⁴ 

[1] Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria;Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria;Division of Cardiac Thoracic Vascular Anesthesia and Intensive Care Medicine, Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria;Division of Cardiology, Department of Medicine II, Medical University of Vienna, Vienna, Austria;

关键词: pulmonary hypertension;    chronic thromboembolic pulmonary hypertension;    pulmonary endarterectomy;    computed tomography;    PA to AA ratio;   

DOI  :  

来源: DOAJ

【 摘 要 】

Objectives: The ratio of pulmonary artery (PA) and ascending aorta (AA) diameters has recently been shown to be a useful indicator for disease severity and predictor of outcome in patients with pulmonary hypertension and heart failure. This study aimed at evaluating the applicability of this ratio for perioperative risk assessment of patients with chronic thromboembolic pulmonary hypertension undergoing pulmonary endarterectomy. Methods: In this retrospective cohort study on 149 patients undergoing pulmonary endarterectomy between 2013 and 2020, the preoperative PA to AA ratio was analyzed on axial computed tomography. Variables of pulmonary hemodynamic status were assessed during preoperative right heart catheterization and postoperative Swan-Ganz catheter measurements. Perioperative survival was analyzed by Kaplan-Meier method and log-rank tests. Results: Preoperative computed tomography measurements showed a median AA diameter of 31 mm (range, 19-47 mm), and a median PA diameter of 36 mm (range, 25-55 mm). The calculated median PA to AA ratio was 1.13 (range, 0.79-1.80). PA to AA ratio correlated positively with PA pressure (systolic, r = 0.352 [P < .001]; diastolic, r = 0.406 [P < .001]; mean, r = 0.318 [P < .001]) and inversely with age (r = −0.484 [P < .001]). Univariable Cox regression analysis identified PA diameter (P = .008) as a preoperative parameter predictive of survival. There was a significant difference (log-rank P = .037) in 30-day survival probability for patients with lower PA to AA ratios (<1.136; survival probability, 97.4%) compared with patients with higher ratios (>1.136; survival probability, 88.9%). Conclusions: PA to AA ratio shows a correlation with other variables associated with pulmonary hypertension. In addition, patients with higher PA to AA ratios have lower survival probabilities after PEA. Further analysis of PA to AA ratio on the selection of chronic thromboembolic pulmonary hypertension for different treatment modalities—pulmonary endarterectomy, medical therapy, and or balloon pulmonary angioplasty—is warranted.

【 授权许可】

Unknown