Interchangeability of right ventricular longitudinal shortening fraction assessed by transthoracic and transoesophageal echocardiography in the perioperative setting: A prospective study

• Published in: Frontiers in cardiovascular medicine 2022-12, Vol.9, p.1074956-1074956
• Main Authors: Beyls, Christophe, Huette, Pierre, Vangreveninge, Paul, Leviel, Florent, Daumin, Camille, Ammar, BenAmmar, Touati, Gilles, Roger, Bouzerar, Caus, Thierry, Dupont, Hervé, Abou-Arab, Osama, Momar, Diouf, Mahjoub, Yazine
• Format: Article
• Language: English
• Subjects: Cardiovascular Medicine; Human health and pathology; interchangeability; Life Sciences; right ventricle; right ventricular shortening fraction; speckle tracking; tricuspid
• ISSN: 2297-055X; 2297-055X
• DOI: 10.3389/fcvm.2022.1074956

Conventional transthoracic (TTE) and transoesophageal echocardiography (TEE) parameters assessing right ventricle (RV) systolic function are daily used assuming their clinical interchangeability. RV longitudinal shortening fraction (RV-LSF) is a two-dimensional speckle tracking parameter used to assess RV systolic function. RV-LSF is based on tricuspid annular displacement analysis and could be measured with TTE or TEE. The aim of the study was to determine if RV-LSF and RV-LSF measurements were interchangeable in the perioperative setting. Prospective perioperative TTE and TEE echocardiography were performed under general anesthesia during scheduled cardiac surgery in 90 patients. RV-LSF was measured by semi-automatic software. Comparisons were performed using Pearson correlation and Bland-Altman plots. RV-LSF clinical agreement was determined as a range of -5 to 5%. Of the 114 patients who met the inclusion criteria, 90 were included. The mean preoperative RV-LSF was 20.4 ± 4.3 and 21.1 ± 4.1% for RV-LSF The agreement between RV-LSF measurements was excellent, with a bias at -0.61 and limits of agreement of -4.18 to 2.97 %. All measurements fell within the determined clinical agreement interval in the Bland-Altman plot. Linear regression analysis showed a high correlation between RV-LSF and RV-LSF measurement (r = 0.9; confidence interval [CI] 95%: [0.87-0.94], < 0.001). RV-LSF and RV-LSF measurements are interchangeable, allowing RV-LSF to be a helpful parameter for assessing perioperative changes in RV systolic function. NCT05404737. https://www.clinicaltrials.gov/ct2/show/NCT05404737.