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Increased Stiffness Is the Major Early Abnormality in a Pig Model of Severe Aortic Stenosis and Predisposes to Congestive Heart Failure in the Absence of Systolic Dysfunction Heart Failure
Conclusion Increased stiffness is the major early pathological process that predisposes to congestive heart failure without abnormalities in systolic function and relaxation in a clinically relevant animal model of aortic stenosis.
Source: JAHA:Journal of the American Heart Association - May 20, 2015 Category: Cardiology Authors: Ishikawa, K., Aguero, J., Oh, J. G., Hammoudi, N., A. Fish, L., Leonardson, L., Picatoste, B., Santos-Gallego, C. G., M. Fish, K., Hajjar, R. J. Tags: Heart Failure Source Type: research

Synergistic Utility of Brain Natriuretic Peptide and Left Ventricular Strain in Patients With Significant Aortic Stenosis Valvular Heart Disease
Conclusions In normal LVEF patients with significant aortic stenosis, BNP and LV-GLS provide incremental (additive not duplicative) prognostic information over established predictors, suggesting that both play a synergistic role in defining outcomes.
Source: JAHA:Journal of the American Heart Association - January 5, 2016 Category: Cardiology Authors: Goodman, A., Kusunose, K., Popovic, Z. B., Parikh, R., Barr, T., Sabik, J. F., Rodriguez, L. L., Svensson, L. G., Griffin, B. P., Desai, M. Y. Tags: Metabolism, Valvular Heart Disease, Echocardiography, Cardiovascular Surgery Source Type: research

Relationship Between QT Interval and Outcome in Low-Flow Low-Gradient Aortic Stenosis With Low Left Ventricular Eȷection Fraction Valvular Heart Disease
ConclusionsIn patients with LF‐LG AS and reduced LVEF, longer QTc interval was associated with worse LV function and increased risk of death. Assessment of QTc may provide a simple and inexpensive tool to enhance risk stratification in LF‐LG AS patients.Clinical Trial RegistrationURL: https://www.clinicaltrials.gov. Unique identifier: NCT 01835028.
Source: JAHA:Journal of the American Heart Association - October 19, 2016 Category: Cardiology Authors: Dahou, A., Toubal, O., Clavel, M.–A., Beaudoin, J., Magne, J., Mathieu, P., Philippon, F., Dumesnil, J. G., Puri, R., Ribeiro, H. B., Larose, E., Rodes-Cabau, J., Pibarot, P. Tags: Heart Failure, Valvular Heart Disease, Echocardiography, Electrocardiology (ECG), Prognosis Original Research Source Type: research

Histological Findings and Predictors of Cerebral Debris From Transcatheter Aortic Valve Replacement: The ALSTER Experience Arrhythmia and Electrophysiology
ConclusionThis study showed a high rate of embolic debris consisting of typical anatomic structures known to be altered in patients with aortic stenosis undergoing transcatheter aortic valve replacement. Female patients with diabetes mellitus have increased risk of embolic debris and should be protected by a cerebral protection system during transcatheter aortic valve replacement. Because valve tissue embolizes more often in patients with predilation, procedural planning should consider this finding. Both cerebral arteries (brachiocephalic trunk, left carotid artery) should be protected in the same way.
Source: JAHA:Journal of the American Heart Association - November 9, 2016 Category: Cardiology Authors: Schmidt, T., Akdag, O., Wohlmuth, P., Thielsen, T., Schewel, D., Schewel, J., Alessandrini, H., Kreidel, F., Bader, R., Romero, M., Ladich, E., Virmani, R., Schafer, U., Kuck, K.–H., Frerker, C. Tags: Aortic Valve Replacement/Transcatheter Aortic Valve Implantation, Catheter-Based Coronary and Valvular Interventions, Treatment Original Research Source Type: research

Long-Term Outcomes of Patients With Mediastinal Radiation-Associated Severe Aortic Stenosis and Subsequent Surgical Aortic Valve Replacement: A Matched Cohort Study Valvular Heart Disease
BackgroundCardiac disease after mediastinal radiotherapy for thoracic malignancy (chest radiotherapy [XRT]) often manifests as progressive aortic stenosis. In patients with XRT‐induced severe aortic stenosis undergoing surgical aortic valve replacement (SAVR), we sought to: (1) study long‐term survival and compare these patients with a matched cohort undergoing SAVR during the same time frame; and (2) identify potential predictors of long‐term mortality.Methods and ResultsWe studied patients with symptomatic severe aortic stenosis undergoing SAVR at our institution, of which there were 172 mediastinal XRT patients (6...
Source: JAHA:Journal of the American Heart Association - May 5, 2017 Category: Cardiology Authors: Donnellan, E., Masri, A., Johnston, D. R., Pettersson, G. B., Rodriguez, L. L., Popovic, Z. B., Roselli, E. E., Smedira, N. G., Svensson, L. G., Griffin, B. P., Desai, M. Y. Tags: Valvular Heart Disease Original Research Source Type: research