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The importance of preoperative oxygen saturation as a predictor of pulmonary arterial hypertension after surgery of atrial septal defects

Authors
 Han Ki Park  ;  Hong Ju Shin  ;  Young Hwan Park  ;  Bo Gyoung Ma 
Citation
 Interactive Cardiovascular and Thoracic Surgery, Vol.23(3) : 424-430, 2016 
Journal Title
 Interactive Cardiovascular and Thoracic Surgery 
ISSN
 1569-9293 
Issue Date
2016
MeSH
Adult ; Aged ; Cardiac Surgical Procedures/adverse effects* ; Female ; Heart Septal Defects, Atrial/surgery* ; Humans ; Hypertension, Pulmonary/etiology ; Hypertension, Pulmonary/metabolism* ; Hypertension, Pulmonary/physiopathology ; Male ; Middle Aged ; Oximetry/methods ; Oxygen/metabolism* ; Postoperative Complications* ; Pulmonary Gas Exchange/physiology* ; Retrospective Studies ; Risk Factors ; Vascular Resistance ; Young Adult
Keywords
Atrial septal defect ; Pulmonary arterial hypertension
Abstract
OBJECTIVES: There is no concrete predictor of the change of pulmonary arterial pressure after surgical closure of an atrial septal defect (ASD) in patients with pulmonary arterial hypertension (PAH). The aim of this study was to investigate the role of preoperative room air arterial oxygen saturation (SaO2) (arterial blood gas data) as a predictor of postoperative PAH. METHODS: The medical records of 36 patients [>20 years, mean pulmonary arterial pressure (mPAP) ≥25 mmHg] who underwent surgical closure of an ASD between March 2004 and January 2014 were retrospectively reviewed. RESULTS: The median age was 47 years (range, 24.6-65.9 years) and mPAP was 38 ± 14 mmHg. The mean pulmonary vascular resistance (Rp) was 3.9 ± 4.2 Wood units, and fenestration was performed in 12 (33%) patients. Only 1 patient received anti-PAH medication preoperatively. The median follow-up period was 4 years (range, 0-10 years). There were two hospital deaths, one of which was related to PAH. At the last follow-up, PAH (estimated tricuspid regurgitation velocity >3 m/s) existed in 7 patients (19%), and 10 patients (28%) were receiving anti-PAH medications (considered as clinical PAH). Univariate analysis for persistent clinical PAH revealed that mPAP, Qp/Qs, Rp, room air arterial oxygen saturation and postoperative functional class were significant risk factors. Only SaO2 remained a significant risk factor in multivariate analysis (P = 0.03). CONCLUSIONS: Preoperative room air SaO2 is a useful predictor of persistent PAH in adult patients undergoing surgical closure of an ASD.
Full Text
https://academic.oup.com/icvts/article-lookup/doi/10.1093/icvts/ivw162
DOI
10.1093/icvts/ivw162
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Young Hwan(박영환)
Park, Han Ki(박한기) ORCID logo https://orcid.org/0000-0002-7472-7822
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152300
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