TY - JOUR
T1 - Potential role of closure time with adenosine diphosphate in the diagnosis of mitral prosthetic paravalvular leak and prognosis after repair
AU - Belahnech, Yassin
AU - Martí Aguasca, Gerard
AU - García del Blanco, Bruno
AU - Ródenas-Alesina, Eduard
AU - Subirà-Ingla, Arnau
AU - del Fresno, Sergio
AU - Sao-Avilés, Augusto
AU - Solsona-Caravaca, Javier
AU - Galian-Gay, Laura
AU - Fernández-Galera, Rubén
AU - González-Fernández, Víctor
AU - Bellera Gotarda, Neus
AU - Serra-García, Vicenc
AU - Otaegui, Imanol
AU - Serra, Bernat
AU - Calabuig Goena, Alvaro
AU - Soriano-Colomé, Toni
AU - Uribarri, Aitor
AU - Ferreira-Gonzalez, Ignacio
PY - 2026/8
Y1 - 2026/8
N2 - Introduction and objectives: Mitral paravalvular leak (PVL) is associated with hemolysis and heart failure. It has also been linked to shear stress-induced von Willebrand factor abnormalities that prolong closure time with adenosine diphosphate (CT-ADP). The aim of this study was to assess whether CT-ADP serves as a biomarker for mitral PVL diagnosis, follow-up, and prognosis after repair. Methods: In this prospective study, 89 patients (27 with moderate-to-severe mitral PVL referred for closure, group 1; 31 with prosthetic mitral valves without PVL, group 2; and 31 controls without valvular disease, group 3) underwent laboratory assessment including hemolysis markers, congestion markers, and CT-ADP. Patients with PVL underwent percutaneous or surgical repair and were followed up at 3 and 12 months. ROC analysis, linear regression, and Cox models were used to evaluate the diagnostic and prognostic value of CT-ADP. Results: CT-ADP was prolonged in PVL patients (median, 214 seconds) vs control groups (86 seconds in group 2 and 74 seconds in group 3; P < .001). A cutoff of > 135 seconds showed excellent diagnostic accuracy (AUROC, 0.96; sensitivity 89%, specificity 97%). Postprocedural CT-ADP decreased significantly after successful repair (median decrease of 79 seconds) but remained unchanged in those with residual leaks. Elevated postprocedural CT-ADP (>155 s) identified persistent PVL and was associated with worse 1-year outcomes (HR, 21.37; P = .004), including death, heart failure or hemolysis-related readmission, and reintervention. Conclusions: CT-ADP appears to be a promising biomarker for diagnosing and monitoring mitral PVL. It may add value to conventional markers by reflecting shear stress-related platelet dysfunction and predicting outcomes following PVL closure.
AB - Introduction and objectives: Mitral paravalvular leak (PVL) is associated with hemolysis and heart failure. It has also been linked to shear stress-induced von Willebrand factor abnormalities that prolong closure time with adenosine diphosphate (CT-ADP). The aim of this study was to assess whether CT-ADP serves as a biomarker for mitral PVL diagnosis, follow-up, and prognosis after repair. Methods: In this prospective study, 89 patients (27 with moderate-to-severe mitral PVL referred for closure, group 1; 31 with prosthetic mitral valves without PVL, group 2; and 31 controls without valvular disease, group 3) underwent laboratory assessment including hemolysis markers, congestion markers, and CT-ADP. Patients with PVL underwent percutaneous or surgical repair and were followed up at 3 and 12 months. ROC analysis, linear regression, and Cox models were used to evaluate the diagnostic and prognostic value of CT-ADP. Results: CT-ADP was prolonged in PVL patients (median, 214 seconds) vs control groups (86 seconds in group 2 and 74 seconds in group 3; P < .001). A cutoff of > 135 seconds showed excellent diagnostic accuracy (AUROC, 0.96; sensitivity 89%, specificity 97%). Postprocedural CT-ADP decreased significantly after successful repair (median decrease of 79 seconds) but remained unchanged in those with residual leaks. Elevated postprocedural CT-ADP (>155 s) identified persistent PVL and was associated with worse 1-year outcomes (HR, 21.37; P = .004), including death, heart failure or hemolysis-related readmission, and reintervention. Conclusions: CT-ADP appears to be a promising biomarker for diagnosing and monitoring mitral PVL. It may add value to conventional markers by reflecting shear stress-related platelet dysfunction and predicting outcomes following PVL closure.
KW - Mitral paravalvular leak
KW - Closure time with adenosine diphosphate
KW - Paravalvular leak closure
KW - Von Willebrand factor
KW - Biomarkers
KW - Shear stress
KW - Fuga paravalvular mitral
KW - Tiempo de obturación de la adenosina difosfato
KW - Cierre de fuga paravalvular
KW - Factor de von Willebrand
KW - Biomarcadores
KW - Estrés de cizallamiento
UR - https://www.scopus.com/pages/publications/105037347380
UR - http://www.ncbi.nlm.nih.gov/pubmed/41747961
UR - https://www.mendeley.com/catalogue/5a46e988-e1b0-3ee2-bf13-ef78c24015a0/
U2 - 10.1016/j.rec.2026.02.001
DO - 10.1016/j.rec.2026.02.001
M3 - Article
C2 - 41747961
SN - 0300-8932
VL - 79
SP - 691
EP - 700
JO - Revista española de cardiología
JF - Revista española de cardiología
IS - 8
ER -