BACKGROUND: Despite the wealth of data showing the positive effects on cardiac reverse remodelling in the long-term, the immediate effects of transcatheter aortic valve implantation (TAVI) on the left ventricle are yet to be comprehensively described using cardiovascular magnetic resonance imaging. Also, the link between myocardial fibrosis and acute left ventricular (LV) mass regression is unknown. METHODS: Fifty-seven patients with severe aortic stenosis awaiting TAVI underwent paired cardiovascular magnetic resonance scans before and early after the procedure (4 [interquartile range, 3-5] days). LV mass, volume, and function were measured. Late gadolinium enhancement (LGE) imaging was performed to assess for the presence of and pattern of myocardial fibrosis. RESULTS: After the procedure, 53 (95%) patients experienced an immediate (10.1 ± 7.1%) reduction in indexed LV mass (LVMi) from 76 ± 15.5 to 68.4 ± 14.7 g/m2 (P < 0.001). Those with no LGE experienced the greatest LVMi regression (13.9 ± 7.1%) compared with those with a midwall/focal fibrosis pattern LGE (7.4 ± 5.8%) and infarct pattern LGE (7.2 ± 7.0%; P = 0.005). There was no overall change in LV ejection fraction (LVEF; 55.1 ± 12.1% to 55.5 ± 10.9%; P = 0.867), however a significant improvement in LVEF was seen in those with abnormal (< 55%; n = 24; 42%) baseline LVEF (43.2 ± 8.9 to 46.7 ± 10.5%; P = 0.027). Baseline LVMi (P = 0.005) and myocardial fibrosis (P < 0.001) were strong independent predictors of early LVMi regression. CONCLUSIONS: LV reverse remodelling occurs immediately after TAVI, with significant LV mass regression in the total population and an improvement in LVEF in those with preexisting LV impairment. Those without myocardial fibrosis at baseline experience greater LV mass regression than those with fibrosis. Copyright Â
BACKGROUND: Despite the wealth of data showing the positive effects on cardiac reverse remodelling in the long-term, the immediate effects of transcatheter aortic valve implantation (TAVI) on the left ventricle are yet to be comprehensively described using cardiovascular magnetic resonance imaging. Also, the link between myocardial fibrosis and acute left ventricular (LV) mass regression is unknown. METHODS: Fifty-seven patients with severe aortic stenosis awaiting TAVI underwent paired cardiovascular magnetic resonance scans before and early after the procedure (4 [interquartile range, 3-5] days). LV mass, volume, and function were measured. Late gadolinium enhancement (LGE) imaging was performed to assess for the presence of and pattern of myocardial fibrosis. RESULTS: After the procedure, 53 (95%) patients experienced an immediate (10.1 ± 7.1%) reduction in indexed LV mass (LVMi) from 76 ± 15.5 to 68.4 ± 14.7 g/m2 (P < 0.001). Those with no LGE experienced the greatest LVMi regression (13.9 ± 7.1%) compared with those with a midwall/focal fibrosis pattern LGE (7.4 ± 5.8%) and infarct pattern LGE (7.2 ± 7.0%; P = 0.005). There was no overall change in LV ejection fraction (LVEF; 55.1 ± 12.1% to 55.5 ± 10.9%; P = 0.867), however a significant improvement in LVEF was seen in those with abnormal (< 55%; n = 24; 42%) baseline LVEF (43.2 ± 8.9 to 46.7 ± 10.5%; P = 0.027). Baseline LVMi (P = 0.005) and myocardial fibrosis (P < 0.001) were strong independent predictors of early LVMi regression. CONCLUSIONS: LV reverse remodelling occurs immediately after TAVI, with significant LV mass regression in the total population and an improvement in LVEF in those with preexisting LV impairment. Those without myocardial fibrosis at baseline experience greater LV mass regression than those with fibrosis. Copyright Â
Authors: Pankaj Garg; Hosamadin Assadi; Rachel Jones; Wei Bin Chan; Peter Metherall; Richard Thomas; Rob van der Geest; Andrew J Swift; Abdallah Al-Mohammad Journal: Sci Rep Date: 2021-01-12 Impact factor: 4.379
Authors: Ghazaleh Mehdipoor; Shmuel Chen; Saurav Chatterjee; Pooya Torkian; Ori Ben-Yehuda; Martin B Leon; Gregg W Stone; Martin R Prince Journal: J Cardiovasc Magn Reson Date: 2020-06-01 Impact factor: 5.364
Authors: Borbála Vattay; Anikó Ilona Nagy; Astrid Apor; Márton Kolossváry; Aristomenis Manouras; Milán Vecsey-Nagy; Levente Molnár; Melinda Boussoussou; Andrea Bartykowszki; Ádám L Jermendy; Tímea Kováts; Emese Zsarnóczay; Pál Maurovich-Horvat; Béla Merkely; Bálint Szilveszter Journal: Front Cardiovasc Med Date: 2022-04-25
Authors: Torben Lange; Sören J Backhaus; Bo Eric Beuthner; Rodi Topci; Karl-Rudolf Rigorth; Johannes T Kowallick; Ruben Evertz; Moritz Schnelle; Susana Ravassa; Javier Díez; Karl Toischer; Tim Seidler; Miriam Puls; Gerd Hasenfuß; Andreas Schuster Journal: J Cardiovasc Magn Reson Date: 2022-07-28 Impact factor: 6.903
Authors: Miriam Puls; Bo Eric Beuthner; Rodi Topci; Anja Vogelgesang; Annalen Bleckmann; Maren Sitte; Torben Lange; Sören Jan Backhaus; Andreas Schuster; Tim Seidler; Ingo Kutschka; Karl Toischer; Elisabeth Maria Zeisberg; Claudius Jacobshagen; Gerd Hasenfuß Journal: Eur Heart J Date: 2020-05-21 Impact factor: 29.983
Authors: Kush P Patel; Thomas A Treibel; Paul R Scully; Michael Fertleman; Samuel Searle; Daniel Davis; James C Moon; Michael J Mullen Journal: Interv Cardiol Date: 2022-01-18