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Specialty: Radiology
Procedure: Heart Valve Surgery

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Total 34 results found since Jan 2013.

Association Of Stroke With Pattern Of Aortic Leaflet And Left Ventricular Outflow Tract Calcifications
Introduction: Stroke is a feared complication of transcatheter aortic valve replacement (TAVR) used for treatment of severe aortic stenosis. The risk of stroke has been associated with leaflet calcification burden. We aimed to investigate whether a specific pattern of aortic leaflet and left ventricular outflow tract (LVOT) calcification is associated with stroke risk.
Source: Journal of Cardiovascular Computed Tomography - July 1, 2021 Category: Radiology Authors: D. Brito, M. Shotwell, P. Agrawal, S. Patibandla, M. Kadiyala, Y. Hamirani, R. Daggubati, B. Raybuck, A. Kawsara, I. Zeb Source Type: research

Calcified Cerebral Emboli, A "Do Not Miss" Imaging Diagnosis: 22 New Cases and Review of the Literature FELLOWS' JOURNAL CLUB
CONCLUSIONS: Calcified cerebral emboli are more common than previously assumed, are frequently overlooked or misinterpreted, affect clinical course when diagnosed, and carry substantial risk for recurrent stroke.
Source: American Journal of Neuroradiology - August 14, 2014 Category: Radiology Authors: Walker, B. S., Shah, L. M., Osborn, A. G. Tags: FELLOWS ' JOURNAL CLUB Source Type: research

Incidence and predictors of transcatheter aortic valve replacement device emboligenic matter detected by transesophageal echocardiography
This study aimed to investigate the incidence and predictors of emboligenic matter (EM) during TAVR, impact of EM on the procedure, and incidence of symptomatic ischemic stroke post procedure. Among 436 consecutive patients who underwent TF –TAVR, 407 were evaluated in this study. The primary end point was incidence of symptomatic ischemic stroke within 24 h post procedure while taking appropriate preventive measures. Incidence of EM, factors associated with EM, and the impact of EM on the procedure were also investigated. Among the 407 cases, 15 cases (3.7%) of EM were identified but no ischemic stroke occurred in the ...
Source: The International Journal of Cardiovascular Imaging - February 24, 2022 Category: Radiology Source Type: research

Lower Transaortic Flow Rate Is Associated With Increased Mortality in Aortic Valve Stenosis
Conclusions In patients with AS without known cardiovascular disease or diabetes, low transaortic FR was independently associated with higher rates of cardiovascular and all-cause mortality. (An Investigational Drug on Clinical Outcomes in Patients With Aortic Stenosis (Narrowing of the Major Blood Vessel of the Heart) (MK-0653A-043 AM4); NCT00092677)
Source: Journal of the American College of Cardiology: Cardiovascular Imaging - August 7, 2017 Category: Radiology Authors: Saeed, S., Senior, R., Chahal, N. S., Lonnebakken, M. T., Chambers, J. B., Bahlmann, E., Gerdts, E. Tags: Original Research Source Type: research

Dynamic changes in aortic impedance after transcatheter aortic valve replacement and its impact on exploratory outcome
AbstractValvulo-arterial impedance (Zva) has been shown to predict worse outcome in medically managed aortic stenosis (AS) patients. We aimed to investigate the association between Zva and left ventricular (LV) adaptation and to explore the predictive value of Zva for cardiac functional recovery and outcome after transcatheter aortic valve replacement (TAVR). We prospectively enrolled 128 patients with AS who underwent TAVR. Zva was calculated as: (systolic blood pressure  + mean transaortic gradient)/stroke volume index). Echocardiographic assessment occurred at baseline, 1-month and 1-year after TAVR. The primary end...
Source: The International Journal of Cardiovascular Imaging - November 1, 2017 Category: Radiology Source Type: research

Long-Term Valve Performance of TAVR and SAVR: A Report From the PARTNER I Trial
Conclusions Longitudinal assessment of the PARTNER (THE PARTNER TRIAL: Placement of AoRTic TraNscathetER Valve Trial) I trial demonstrates that valve performance and cardiac hemodynamics are stable after implantation in both SAPIEN TAVR and SAVR in patients alive at 5 years. (THE PARTNER TRIAL: Placement of AoRTic TraNscathetER Valve Trial [PARTNER]; NCT00530894)
Source: Journal of the American College of Cardiology: Cardiovascular Imaging - January 1, 2017 Category: Radiology Authors: Daubert, M. A., Weissman, N. J., Hahn, R. T., Pibarot, P., Parvataneni, R., Mack, M. J., Svensson, L. G., Gopal, D., Kapadia, S., Siegel, R. J., Kodali, S. K., Szeto, W. Y., Makkar, R., Leon, M. B., Douglas, P. S. Tags: Original Research Source Type: research

Metoprolol Reduces Hemodynamic and Metabolic Overload in Asymptomatic Aortic Valve Stenosis Patients: A Randomized Trial Ventricular Structure and Function
Conclusions— In patients with asymptomatic AS, metoprolol increases systolic ejection time and reduces aortic valve gradients, global afterload, and myocardial oxygen requirements. Thus, metoprolol displays favorable hemodynamic and metabolic effects and could improve outcome in patients with asymptomatic AS. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT02076711.
Source: Circulation: Cardiovascular Imaging - September 27, 2017 Category: Radiology Authors: Hansson, N. H., Sorensen, J., Harms, H. J., Kim, W. Y., Nielsen, R., Tolbod, L. P., Frokiaer, J., Bouchelouche, K., Dodt, K. K., Sihm, I., Poulsen, S. H., Wiggers, H. Tags: Clinical Studies, Metabolism, Valvular Heart Disease, Imaging, Nuclear Cardiology and PET Ventricular Structure and Function Source Type: research

Postoperative Reverse Remodeling and Symptomatic Improvement in Normal-Flow Low-Gradient Aortic Stenosis After Aortic Valve Replacement Valvular Heart Disease
Conclusions— Patients with NFLG had less severe AS and LV remodeling than patients with normal-flow high-gradient. Furthermore, NFLG patients experienced less reverse remodeling but the same symptomatic benefit. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT02316587.
Source: Circulation: Cardiovascular Imaging - December 8, 2017 Category: Radiology Authors: Carter-Storch, R., Moller, J. E., Christensen, N. L., Irmukhadenov, A., Rasmussen, L. M., Pecini, R., Ovrehus, K. A., Sondergard, E. V., Marcussen, N., Dahl, J. S. Tags: Valvular Heart Disease, Aortic Valve Replacement/Transcatheter Aortic Valve Implantation Source Type: research

Hemodynamic Characteristics in Significant Symptomatic and Asymptomatic Primary Mitral Valve Regurgitation at Rest and During Exercise Valvular Heart Disease
Conclusions— Symptoms in patients with severe mitral valve regurgitation relate to congestion (pulmonary capillary wedge pressure and PAP), but not to peak oxygen consumption, which is determined by forward left ventricular stroke volume. Exercise testing reveals a higher mitral valve regurgitation burden in apparently asymptomatic patients. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT02961647.
Source: Circulation: Cardiovascular Imaging - February 15, 2018 Category: Radiology Authors: Bakkestrom, R., Banke, A., Christensen, N. L., Pecini, R., Irmukhamedov, A., Andersen, M., Borlaug, B. A., Moller, J. E. Tags: Valvular Heart Disease, Echocardiography, Exercise Testing, Magnetic Resonance Imaging (MRI) Source Type: research

Can stress echocardiography identify patients who will benefit from percutaneous mitral valve repair?
AbstractThe aim of the current study was to investigate whether stress echocardiography improves selection of patients who might have clinical benefit from percutaneous mitral valve repair with the MitraClip. In total, 39 patients selected for MitraClip implantation underwent preprocedural low-dose stress (dobutamine or handgrip) echocardiography from which stroke volume, ejection fraction and MR grade were measured. Outcome after MitraClip implantation was determined by New York Heart Association classification and Quality of Life questionnaires. Clinical benefit from MitraClip treatment was defined as survival and NYHA c...
Source: The International Journal of Cardiovascular Imaging - November 29, 2018 Category: Radiology Source Type: research

Right ventricular longitudinal function is linked to left ventricular filling pressure in patients with repaired tetralogy of fallot
AbstractExperimental data on pulmonary regurgitation has linked right ventricular longitudinal function to left ventricular filling pressure in animals with induced and treated pulmonary regurgitation but this relationship has not been investigated in patients with repaired Tetralogy of Fallot (rToF). The aim of this study was to determine if right ventricular longitudinal function assessed using cardiovascular magnetic resonance (CMR) is associated with left ventricular filling pressure in patients with rToF. A second objective of this study was to determine if direction of septal movement is related to right ventricular ...
Source: The International Journal of Cardiovascular Imaging - September 17, 2022 Category: Radiology Source Type: research

CMR assessment of right ventricular function in patients with combined pulmonary stenosis and insufficiency after correction of tetralogy of Fallot.
CONCLUSION: RV function is preserved in patients with PSPI when compared to patients with PI following surgical repair of TOF. PMID: 23864059 [PubMed - as supplied by publisher]
Source: Acta Radiologica - July 17, 2013 Category: Radiology Authors: Kohi MP, Ordovas KG, Naeger DM, Meadows AK, Foster E, Higgins CB Tags: Acta Radiol Source Type: research

Effect of Left Ventricular Ejection Fraction on Postoperative Outcome in Patients With Severe Aortic Stenosis Undergoing Aortic Valve Replacement Valvular Heart Disease
Conclusions— LVEF is a powerful predictor of outcome in patients with severe aortic stenosis undergoing aortic valve replacement, independent of the presence of valve-related symptoms.
Source: Circulation: Cardiovascular Imaging - April 7, 2015 Category: Radiology Authors: Dahl, J. S., Eleid, M. F., Michelena, H. I., Scott, C. G., Suri, R. M., Schaff, H. V., Pellikka, P. A. Tags: Contractile function, Valvular heart disease, Echocardiography, CV surgery: valvular disease Source Type: research

Post TAVI complications – a pictorial review
Transcatheter aortic valve implantation (TAVI) has emerged for treating aortic stenosis in patients who are poor candidates for surgical aortic valve replacement. Although a promising approach for high-risk patients, the indication may be expanded to intermediate- and eventually low-risk patients in the future; however, doing so will require a better understanding of potential complications.In the current presentation, we present our institutional experience of postoperative complications such as myocardial infarction, stroke, bleeding, vascular complications and valve performance.
Source: Clinical Radiology - July 24, 2015 Category: Radiology Authors: Santo Chakraborti, Tinu Purayil, Vikram Raju, Gareth Morgan-Hughes, Carl Roobottom Source Type: research

Exploring the Role of Transcatheter Aortic Valve Replacement as the Preferred Treatment for Lower-Risk Patients
The investigators of the NOTION (Nordic Aortic Valve Intervention) trial showed that in an all-comers population of patients with severe aortic stenosis, transcatheter aortic valve replacement (TAVR) using the CoreValve self-expanding bioprosthesis (Medtronic Inc., Minneapolis, Minnesota) yielded similar rates of the composite endpoint of all-cause death, stroke, or myocardial infarction at 1 year compared with surgical bioprosthetic aortic valve replacement (1). Their study is the first to assess in a randomized trial the results of TAVR in a population including a high proportion of patients with low surgical risk (81.8...
Source: Journal of the American College of Cardiology: Cardiovascular Imaging - September 28, 2015 Category: Radiology Source Type: research