Open AccessAn Australian Tertiary Referral Center Experience of the Management of Chronic Thromboembolic Pulmonary Hypertension
Author(s) -
Maliyasena Videshinie A.,
Hopkins Peter M. A.,
Thomson Bruce M.,
Dunning John,
Wall Douglas A.,
Ng Benjamin J.,
McNeil Keith D.,
Mullany Daniel,
Kermeen Fiona D.
Publication year - 2012
Publication title -
pulmonary circulation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.791
H-Index - 40
ISSN - 2045-8940
DOI - 10.4103/2045-8932.101649
Subject(s) - medicine , chronic thromboembolic pulmonary hypertension , pulmonary hypertension , tertiary care , tertiary referral centre , center (category theory) , referral , intensive care medicine , tertiary referral hospital , family medicine , retrospective cohort study , chemistry , crystallography
The objective of this study was to report the outcome of pulmonary endarterectomy (PEA) surgery performed for chronic thromboembolic pulmonary hypertension (CTEPH) at a single tertiary center. The prospective study consisted of 35 patients with surgically amenable CTEPH undergoing PEA between September 2004 and September 2010. The main outcome measures were Functional (New York Heart Association [NYHA] class, 6‐Minute Walk Distance), hemodynamic (echocardiography, right heart catheterization, and cardiac MRI), and outcome data (morbidity and mortality). Following PEA, there were significant improvements in NYHA class (pre 2.9±0.7 vs. post 1.3±0.5, P < 0.0001), right ventricular systolic pressure (pre 77.4±24.8 mmHg vs. post 45.1±24.9 mmHg, P = 0.0005), 6‐Minute Walk Distance (pre 419.6±109.4 m vs. post 521.6±83.5 m, P = 0.0017), mean pulmonary artery pressure (pre 41.8±15.3 mmHg vs. post 24.7±8.8 mmHg, P = 0.0006), and cardiac MRI indices (end diastolic volume pre 213.8±49.2 mL vs. post 148.1±34.5 mL, P < 0.0001; ejection fraction pre 40.7±9.8 mL vs. post 48.1±8.9 mL, P = 0.0069). The mean cardiopulmonary bypass time was 258.77±26.16 min, with a mean circulatory arrest time of 43.83 ±28.78 min, a mean ventilation time of 4.7±7.93 days (range 0.2–32.7), and a mean intensive care unit stay of 7.22±8.71 days (range 1.1–33.8). Complications included reperfusion lung injury (20%), persistent pulmonary hypertension (17.1%), slow respiratory wean (25.7%), pericardial effusion (11.4%), and cardiac tamponade (5.7%). 1‐year mortality post‐procedure was 11.4%. Pulmonary endarterectomy can be performed safely with relatively low mortality.