Cristina Cruz1,2, Teresa Pinho1,2, Carla Sousa1,2, Cláudia Camila Dias3, José Silva Cardoso1,2, Maria Júlia Maciel1,2. 1. Department of Cardiology, Centro Hospitalar São João, Porto, Portugal. 2. Faculty of Medicine, University of Porto, Porto, Portugal. 3. Department of Community Medicine, Information and Decision in Health, Faculty of Medicine, University of Porto, Porto, Portugal.
Abstract
BACKGROUND: Late after tetralogy of Fallot (TOF) repair some patients exhibit aortic dilatation and stiffness. Noninvasive assessment of aortic stiffness could contribute to understand this aortopathy and may be important in risk stratification for major aortic event. METHODS: We included prospectively 82 adults after TOF repair and 41 age- and sex-matched normal controls. Aortic diameters were measured by two-dimensional transthoracic echocardiography and the aortic z-score was estimated. Aortic deformation was assessed by M-mode strain and global peak circumferential ascending aortic strain (CAAS), derived from two-dimensional speckle tracking echocardiography (2D-STE). Corrected CAAS was calculated as CAAS/pulse pressure. Ascending aorta (AAo) distensibility and stiffness index were calculated. RESULTS: TOF patients (age 29.7 ± 8.4 years; follow-up since TOF repair 23.0 ± 6.8 years) had smaller body surface area but a larger aorta compared to controls. TOF patients had lower AAo distensibility (2.2 [0.0-21.0] vs 5.6 [0.0-12.5] cm2 dyne-1 10-6 , P < .01), higher aortic stiffness index (9.5 [2.7-98.4] vs 7.1 [2.3-20.4], P = .02) and lower CAAS (6.0 ± 3.9 vs 8.1 ± 4.4%, P = .01) compared to controls. CAAS showed a better correlation with AAo z-score (r = -.25, P = .03) compared to M-mode strain. Systemic arterial compliance, arterial stiffness and corrected CAAS (β = -0.23, P = .02) were independently associated with AAo diameter. CONCLUSIONS: TOF patients have a larger and stiffer AAo compared to controls. CAAS derived from 2D-STE allows a routine noninvasive method for assessing AAo stiffness, with advantages over M-mode strain, and may be used as predictor of major aortic or cardiovascular events.
BACKGROUND: Late after tetralogy of Fallot (TOF) repair some patients exhibit aortic dilatation and stiffness. Noninvasive assessment of aortic stiffness could contribute to understand this aortopathy and may be important in risk stratification for major aortic event. METHODS: We included prospectively 82 adults after TOF repair and 41 age- and sex-matched normal controls. Aortic diameters were measured by two-dimensional transthoracic echocardiography and the aortic z-score was estimated. Aortic deformation was assessed by M-mode strain and global peak circumferential ascending aortic strain (CAAS), derived from two-dimensional speckle tracking echocardiography (2D-STE). Corrected CAAS was calculated as CAAS/pulse pressure. Ascending aorta (AAo) distensibility and stiffness index were calculated. RESULTS: TOF patients (age 29.7 ± 8.4 years; follow-up since TOF repair 23.0 ± 6.8 years) had smaller body surface area but a larger aorta compared to controls. TOF patients had lower AAo distensibility (2.2 [0.0-21.0] vs 5.6 [0.0-12.5] cm2 dyne-1 10-6 , P < .01), higher aortic stiffness index (9.5 [2.7-98.4] vs 7.1 [2.3-20.4], P = .02) and lower CAAS (6.0 ± 3.9 vs 8.1 ± 4.4%, P = .01) compared to controls. CAAS showed a better correlation with AAo z-score (r = -.25, P = .03) compared to M-mode strain. Systemic arterial compliance, arterial stiffness and corrected CAAS (β = -0.23, P = .02) were independently associated with AAo diameter. CONCLUSIONS: TOF patients have a larger and stiffer AAo compared to controls. CAAS derived from 2D-STE allows a routine noninvasive method for assessing AAo stiffness, with advantages over M-mode strain, and may be used as predictor of major aortic or cardiovascular events.
Authors: Gergely Rácz; Árpád Kormányos; Péter Domsik; Anita Kalapos; Nándor Gyenes; Kálmán Havasi; Nóra Ambrus; István Hartyánszky; Gábor Bogáts; Attila Nemes Journal: Cardiovasc Diagn Ther Date: 2021-04
Authors: Attila Nemes; Gergely Rácz; Árpád Kormányos; Péter Domsik; Anita Kalapos; Nándor Gyenes; Nóra Ambrus; István Hartyánszky; Gábor Bogáts; Kálmán Havasi Journal: Cardiovasc Diagn Ther Date: 2021-04
Authors: Maria C Palumbo; Lisa Q Rong; Jiwon Kim; Pedram Navid; Razia Sultana; Jonathan Butcher; Alberto Redaelli; Mary J Roman; Richard B Devereux; Leonard N Girardi; Mario F L Gaudino; Jonathan W Weinsaft Journal: PLoS One Date: 2020-03-12 Impact factor: 3.240