Martin Koestenberger1, William Ravekes2, Bert Nagel3, Alexander Avian4, Bernd Heinzl3, Gerhard Cvirn5, Peter Fritsch3, Andrea Fandl3, Thomas Rehak3, Andreas Gamillscheg3. 1. Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Graz, Austria martin.koestenberger@medunigraz.at koestenbergerm@gmx.at. 2. Division of Pediatric Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. 3. Division of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Graz, Austria. 4. Institute for Medical Informatics, Statistics and Documentation, Medical University Graz, Graz, Austria. 5. Institute of Physiological Chemistry, Centre of Physiological Medicine, Medical University Graz, Graz, Austria.
Abstract
OBJECTIVE: Quantitative determination of right ventricular (RV) function has gained more interest over the last years. The RV outflow tract systolic excursion (RVOT SE) has been recently proposed as an echocardiographic tool to assess RV systolic function in adults. We aimed to determine growth-related changes of RVOT SE in children and to establish references values. STUDY DESIGN: A prospective study was conducted in a group of 711 healthy paediatric patients (age: 1 day to 18 years). We determined the effects of age and body surface area (BSA) on RVOT SE values. RVOT SE values were further correlated with the established RV systolic function parameters tricuspid annular plane systolic excursion (TAPSE) and tricuspid annular peak systolic velocity (S'). RESULTS: The RVOT SE ranged from a mean of 3.4 mm in neonates to 9.5 mm in 18-year-old adolescents. The RVOT SE values showed a positive correlation with age (r = 0.90, P < 0.001) and BSA (r = 0.91, P < 0.001). A significant positive correlation was seen between RVOT SE and TAPSE (r = 0.93, P < 0.001) and also between RVOT SE and S' (r = 0.86, P < 0.001) in our patients. CONCLUSION: RVOT SE provides a simple measure and, in combination with long-axis excursion parameters TAPSE and S', a comprehensive assessment of RV systolic function. Z-scores of RVOT SE values were calculated, and percentile charts were established to serve as reference data. Published on behalf of the European Society of Cardiology. All rights reserved.
OBJECTIVE: Quantitative determination of right ventricular (RV) function has gained more interest over the last years. The RV outflow tract systolic excursion (RVOT SE) has been recently proposed as an echocardiographic tool to assess RV systolic function in adults. We aimed to determine growth-related changes of RVOT SE in children and to establish references values. STUDY DESIGN: A prospective study was conducted in a group of 711 healthy paediatric patients (age: 1 day to 18 years). We determined the effects of age and body surface area (BSA) on RVOT SE values. RVOT SE values were further correlated with the established RV systolic function parameters tricuspid annular plane systolic excursion (TAPSE) and tricuspid annular peak systolic velocity (S'). RESULTS: The RVOT SE ranged from a mean of 3.4 mm in neonates to 9.5 mm in 18-year-old adolescents. The RVOT SE values showed a positive correlation with age (r = 0.90, P < 0.001) and BSA (r = 0.91, P < 0.001). A significant positive correlation was seen between RVOT SE and TAPSE (r = 0.93, P < 0.001) and also between RVOT SE and S' (r = 0.86, P < 0.001) in our patients. CONCLUSION: RVOT SE provides a simple measure and, in combination with long-axis excursion parameters TAPSE and S', a comprehensive assessment of RV systolic function. Z-scores of RVOT SE values were calculated, and percentile charts were established to serve as reference data. Published on behalf of the European Society of Cardiology. All rights reserved.
Authors: Catherine Ross; Riten Kumar; Marie-Claude Pelland-Marcotte; Shivani Mehta; Monica E Kleinman; Ravi R Thiagarajan; Muhammad B Ghbeis; Christina J VanderPluym; Kevin G Friedman; Diego Porras; Francis Fynn-Thompson; Samuel Z Goldhaber; Leonardo R Brandão Journal: Chest Date: 2021-09-26 Impact factor: 9.410