RT Journal Article
T1 Superiority of 3D planimetry over pressure half-time method for the assessment of mitral valve area after percutaneous edge-to-edge mitral repair
A1 Estrada Ledesma, Miriam
A1 Bastidas Plaza, Diana
A1 Pozo Osinalde, Eduardo
A1 Marcos-Alberca, Pedro
A1 Olmos Blanco, Carmen
A1 Mahía Casado, Patricia
A1 Luaces Méndez, María
A1 Gómez de Diego, José Juan
A1 Nombela-Franco, Luis
A1 Jiménez-Quevedo, Pilar
A1 Tirado, Gabriela
A1 Collado Yurrita, Luis Rodolfo
A1 Fernández Ortiz, Antonio Ignacio
A1 Pérez Villacastín Domínguez, Julián
A1 De Agustín Loeches, José Alberto
AB IIntroduction and objectives: There is limited evidence to identify the most accurate method for measuringthe mitral valve area (MVA) after percutaneous edge-to-edge mitral repair. Our objective was to evaluatethe optimal method in this context and its correlation with the mean transmitral gradient.Methods: A registry of patients undergoing percutaneous mitral repair was conducted, analyzingdifferent methods of measuring MVA and their correlation with the mean gradient.Results: We analyzed data from 167 patients. The mean age was 76   10.3 years, 54% were men, and 46%were women. Etiology was degenerative in 45%, functional in 39%, and mixed in 16%. Postclip MVAmeasurements were 1.89   0.60 cm2 using pressure half-time (PHT), 2.87   0.83 cm2 using 3D planimetry,and the mean gradient was 3   1.19 mmHg. MVA using 3D planimetry showed a stronger correlation withthe mean gradient (r = 0.46, P<.001) than MVA obtained by PHT (r = 0.19, P = .048). Interobserveragreement was also higher with 3D planimetry than with PHT (intraclass correlation coefficient of 0.90 vs0.81 and variation coefficient of 9.6 vs 19.7%, respectively).Conclusions: Our study demonstrates that the PHT method significantly underestimates MVA after clipimplantation compared with direct measurement using transesophageal 3D planimetry. The lattermethod also correlates better with postimplantation gradients and has less interobserver variability.These results suggest that 3D planimetry is a more appropriate method for assessing postclip mitralstenosis.
PB Elsevier
YR 2024
FD 2024-03-14
LK https://hdl.handle.net/20.500.14352/128705
UL https://hdl.handle.net/20.500.14352/128705
LA eng
NO Estrada Ledesma, Miriam, et al. «Superioridad de la planimetría 3D sobre el tiempo de hemipresión para evaluar el área valvular mitral tras la reparación mitral percutánea de borde a borde». Revista Española de Cardiología, vol. 77, n.o 11, noviembre de 2024, pp. 919-25.  https://doi.org/10.1016/j.recesp.2024.03.007.
DS Docta Complutense
RD 31 dic 2025