BACKGROUND: The frequency and causes of right ventricular (RV) systolic dysfunction early after cardiac transplantation are not well defined. METHODS: We investigated the prevalence and causes of RV dysfunction in 27 heart transplant recipients, as measured by lateral tricuspid annular plane excursion (TAPSE) and fractional area change (FAC) at a mean of 15 ± 11 days after transplant. Tissue Doppler imaging was used to assess systolic time velocity integral (TVI) of the RV basal free wall. A subset of 22 patients had follow-up TAPSE measurement at 406 ± 121 days. RESULTS: RV systolic dysfunction, defined as TAPSE > 2 standard deviation (SD) below values in a control group, was present in 100% (27/27) of patients (P < 0.05). FAC was also significantly lower in patients compared with controls (P < 0.0001). TVI confirmed the presence of RV dysfunction in all 16 patients with both TAPSE and TVI (P < 0.05). Ischemic time (P = 0.017) and posttransplant tricuspid regurgitation (P = 0.024) were independent predictors of early RV dysfunction (r = 0.753). On follow-up, RV function improved in 15 of 22 patients but all patients remained with TAPSE > 2 SD below controls. CONCLUSION: This study showed that 100% of patients had reduced RV function early after transplant. Two thirds of patients had partial recovery of RV function during the first year. In all patients, however, RV function remained significantly lower than in controls.
BACKGROUND: The frequency and causes of right ventricular (RV) systolic dysfunction early after cardiac transplantation are not well defined. METHODS: We investigated the prevalence and causes of RV dysfunction in 27 heart transplant recipients, as measured by lateral tricuspid annular plane excursion (TAPSE) and fractional area change (FAC) at a mean of 15 ± 11 days after transplant. Tissue Doppler imaging was used to assess systolic time velocity integral (TVI) of the RV basal free wall. A subset of 22 patients had follow-up TAPSE measurement at 406 ± 121 days. RESULTS: RV systolic dysfunction, defined as TAPSE > 2 standard deviation (SD) below values in a control group, was present in 100% (27/27) of patients (P < 0.05). FAC was also significantly lower in patients compared with controls (P < 0.0001). TVI confirmed the presence of RV dysfunction in all 16 patients with both TAPSE and TVI (P < 0.05). Ischemic time (P = 0.017) and posttransplant tricuspid regurgitation (P = 0.024) were independent predictors of early RV dysfunction (r = 0.753). On follow-up, RV function improved in 15 of 22 patients but all patients remained with TAPSE > 2 SD below controls. CONCLUSION: This study showed that 100% of patients had reduced RV function early after transplant. Two thirds of patients had partial recovery of RV function during the first year. In all patients, however, RV function remained significantly lower than in controls.
Authors: Muath Bishawi; Giorgio Zanotti; Linda Shaw; Michael MacKenzie; Anthony Castleberry; Karsten Bartels; Jacob Schroder; Eric Velazquez; Madhav Swaminathan; Joseph Rogers; Carmelo Milano Journal: Ann Thorac Surg Date: 2018-12-05 Impact factor: 4.330
Authors: Raquel López-Vilella; María J Paniagua-Martín; Francisco González-Vílchez; Víctor Donoso Trenado; Eduardo Barge-Caballero; Ignacio Sánchez-Lázaro; Ana V Aller Fernández; Luis Martínez-Dolz; María G Crespo-Leiro; Luis Almenar-Bonet Journal: Transpl Int Date: 2022-03-21 Impact factor: 3.782
Authors: Juan F Vasquez-Rodriguez; Ramon Medina-Mur; Luis E Giraldo; Claudia Jaimes; Monica Lopez; John Ramirez; Ma Juliana Rodriguez Journal: Arch Cardiol Mex Date: 2022-04-04