The long-term outcome of mechanical aortic and mitral prosthetic valve (A-PV, M-PV) dysfunction (PVD) remains a serious complication associated with high morbidity and mortality. We sought to evaluate the incremental diagnostic value of combined transthoracic echocardiography (TTE) and fluoroscopy (F) in patients with suspected PVD. A total of 354 patients (178 A-PV, 176 M-PV) were imaged by TTE and F within 5 days of hospital admission. PVD was confirmed by transesophageal echocardiography, computed tomography, effective thrombolysis, or surgical inspection. PVD was confirmed in 101 patients (57%) with M-PV and 99 (55%) with A-PV. Regardless of the mechanism of PVD, TTE shows good sensitivity and specificity, with accuracy of 80% for M-PV and 91% for A-PV. F shows high specificity, but low sensitivity with accuracy of 68% for M-PV and 78% for A-PV. The integration of TTE + F significantly improved accuracy both for M-PV (83%) and A-PV (96%). At ROC analysis, the combined model of TTE + F showed the highest area under the curve for the detection of PVD compared with TTE and F alone (p < 0.001). In conclusion, in patients with a clinical suspicion of PVD, the combined model of TTE + F offers incremental value over TTE or F alone. This multimodality imaging approach overcomes limitations of TTE or F alone and provides prompt identification of patients who may require further imaging assessment and/or closer follow up.
Detection of Mechanical Prosthetic Valve Dysfunction / M. Muratori, L. Fusini, S. Ghulam Ali, G. Teruzzi, N. Corrieri, P. Gripari, M. Mapelli, A. Annoni, G. Tamborini, M.G. Rabbat, G. Pontone, F. Alamanni, P. Montorsi, M. Pepi. - In: THE AMERICAN JOURNAL OF CARDIOLOGY. - ISSN 0002-9149. - (2021 May 18). [Epub ahead of print]
|Titolo:||Detection of Mechanical Prosthetic Valve Dysfunction|
|Settore Scientifico Disciplinare:||Settore MED/11 - Malattie dell'Apparato Cardiovascolare|
|Data di pubblicazione:||18-mag-2021|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.amjcard.2021.03.055|
|Appare nelle tipologie:||01 - Articolo su periodico|