Intra-operative assessment of pulmonary artery pressure by transoesophageal echocardiography

Soliman, D. and Bolliger, D. and Skarvan, K. and Kaufmann, Beat A. and Lurati Buse, G. and Seeberger, Manfred D.. (2015) Intra-operative assessment of pulmonary artery pressure by transoesophageal echocardiography. Anaesthesia, 70 (3). pp. 264-271.

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Official URL: https://edoc.unibas.ch/62158/

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The clinical value of the estimation of systolic pulmonary artery pressure, based on Doppler assessment of peak tricuspid regurgitant velocity using transoesophageal echocardiography, is unclear. We studied 109 patients to evaluate the feasibility of obtaining adequate Doppler recordings, and compared Doppler estimates with values measured using a pulmonary artery catheter in a subset of 33 patients. Tricuspid regurgitation was evaluated at the mid-oesophageal level at 0-120 degrees using Doppler echocardiography. A Doppler signal was defined as adequate if there was a >/= 20 degrees alignment and a full envelope. Doppler estimates of systolic pulmonary artery pressure within 10 mmHg and 15% of the value recorded with the pulmonary artery catheter were considered to be in sufficient agreement. Adequate Doppler signals were obtained in 64/109 (59%) patients before and 54/103 (52%) after surgery. Doppler estimates by transoesophageal echocardiography were within 10 mmHg and 15% of values recorded with the pulmonary artery catheter in 28/33 (75%) patients and 22/31 (55%) patients, respectively. In 7 (21%) patients, the echocardiographic Doppler measurement exceeded the measured systolic pulmonary artery pressure by more than 30%. Our study indicates that estimation of the systolic pulmonary artery pressure using transoesophageal Doppler echocardiography is not a reliable and clinically useful method in anaesthetised patients undergoing mechanical ventilation.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Cardiovascular Molecular Imaging (Kaufmann)
UniBasel Contributors:Kaufmann, Beat
Item Type:Article, refereed
Article Subtype:Research Article
ISSN:1365-2044 (Electronic) 0003-2409 (Linking)
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 Nov 2018 10:57
Deposited On:24 Nov 2018 10:57

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