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Condition: Aortic Stenosis
Procedure: MRI Scan
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Total 48 results found since Jan 2013.
Light ‐chain and transthyretin cardiac amyloidosis in severe aortic stenosis: prevalence, screening possibilities, and outcome
ConclusionBoth TTR ‐ and AL‐CA can accompany severe AS. Parameters solely based on ECG and echocardiography allow for the identification of the majority of CA‐AS. In the present cohort, CA did not significantly worsen prognosis 15.3 months after TAVR.
Source: European Journal of Heart Failure - February 24, 2020 Category: Cardiology Authors: Christian Nitsche,
Stefan Aschauer,
Andreas A. Kammerlander,
Matthias Schneider,
Thomas Poschner,
Franz Duca,
Christina Binder,
Matthias Koschutnik,
Julian Stiftinger,
Georg Goliasch,
Jolanta Siller ‐Matula,
Max‐Paul Winter,
Anahit Anvari Tags: Research Article Source Type: research
Cognition and Cerebral Infarction in Older Adults After Surgical Aortic Valve Replacement
ConclusionsIn high-risk, aged participants undergoing surgical AVR for aortic stenosis, post-operative cognitive dysfunction was surprisingly limited and was resolved by 1-year in most. Post-operative cognitive dysfunction at 4-6 weeks was associated with more and larger acute cerebral infarcts.
Source: The Annals of Thoracic Surgery - November 11, 2018 Category: Cardiovascular & Thoracic Surgery Source Type: research
Cognition and Cerebral Infarction in Older Adults After Surgical Aortic Valve Replacement.
CONCLUSIONS: In high-risk, aged participants undergoing surgical AVR for aortic stenosis, post-operative cognitive dysfunction was surprisingly limited and was resolved by 1-year in most. Post-operative cognitive dysfunction at 4-6 weeks was associated with more and larger acute cerebral infarcts.
PMID: 30423336 [PubMed - as supplied by publisher]
Source: The Annals of Thoracic Surgery - November 10, 2018 Category: Cardiovascular & Thoracic Surgery Authors: Giovannetti T, Price CC, Fanning M, Messé S, Ratcliffe SJ, Lyon A, Kasner SE, Seidel G, Bavaria JE, Szeto WY, Hargrove WC, Acker MA, Floyd TF, DENOVO Investigators Tags: Ann Thorac Surg Source Type: research
Workup and Management of Patients With Paradoxical Low-Flow, Low-Gradient Aortic Stenosis
AbstractAbout 60% of patients with paradoxical low-flow, low-gradient (PLF-LG) aortic stenosis (AS) have a severe disease that justifies aortic valve replacement (AVR). The first step in patients with symptomatic PLF AS should be to rule out measurement errors and treat hypertension. The second step is to distinguish pseudo-severe from true severe AS (TSAS). The third step is to select the optimal treatment modality at the right time. Regarding the second step, projected aortic valve area calculated using stress echocardiography is superior to traditional severity criteria (AVA< 1.0 cm2 and mean gradient ≥ 40 m...
Source: Current Treatment Options in Cardiovascular Medicine - May 2, 2018 Category: Cardiology 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
Intraoperative Cerebral Perfusion Disturbances During Transcatheter Aortic Valve Replacement.
CONCLUSIONS: Cerebral oximetry reacted promptly to rapid ventricular pacing with significant desaturation and hyperemia a common occurrence. However, no association between this intraoperative insult and objective neurologic injury was detected.
PMID: 28821337 [PubMed - as supplied by publisher]
Source: The Annals of Thoracic Surgery - August 16, 2017 Category: Cardiovascular & Thoracic Surgery Authors: Fanning JP, Walters DL, Wesley AJ, Anstey C, Huth S, Bellapart J, Collard C, Rapchuk IL, Natani S, Savage M, Fraser JF Tags: Ann Thorac Surg Source Type: research
Intraoperative Cerebral Perfusion Disturbances During Transcatheter Aortic Valve Replacement
Conclusions Cerebral oximetry reacted promptly to rapid ventricular pacing with significant desaturation and hyperemia a common occurrence. However, no association between this intraoperative insult and objective neurologic injury was detected.
Source: The Annals of Thoracic Surgery - August 16, 2017 Category: Cardiovascular & Thoracic Surgery Source Type: research
Turbulent Kinetic Energy Assessed by Multipoint 4-Dimensional Flow Magnetic Resonance Imaging Provides Additional Information Relative to Echocardiography for the Determination of Aortic Stenosis Severity Valvular Heart Disease
Conclusions—
Elevated TKE levels imply higher energy losses associated with bicuspid aortic valves and dilated ascending aortic geometries that are not assessable by current echocardiographic measures. These findings indicate that TKE may provide complementary information to echocardiography, helping to distinguish within the heterogeneous population of patients with moderate to severe AS.
Source: Circulation: Cardiovascular Imaging - June 13, 2017 Category: Radiology Authors: Binter, C., Gotschy, A., Sundermann, S. H., Frank, M., Tanner, F. C., Luscher, T. F., Manka, R., Kozerke, S. Tags: Hemodynamics, Pathophysiology, Valvular Heart Disease, Magnetic Resonance Imaging (MRI) Source Type: research
Safety and Efficacy of Simultaneous Biplane Mode of 3-Dimensional Transesophageal Echocardiography-Guided Antegrade Multiple-Inflation Balloon Aortic Valvuloplasty in Patients With Severe Aortic Stenosis.
CONCLUSIONS: Biplane-TEE guided antegrade multiple-inflation BAV might have the potential to improve periprocedural survival without increasing complications, compared with conventional retrograde BAV in patients with severe AS.
PMID: 28163283 [PubMed - as supplied by publisher]
Source: Circulation Journal - February 3, 2017 Category: Cardiology Authors: Mizutani K, Hara M, Ishikawa H, Nishimura S, Ito A, Iwata S, Takahashi Y, Sugioka K, Murakami T, Shibata T, Yoshiyama M Tags: Circ J Source Type: research
Utility of Duranta, a wireless patch-type electrocardiographic monitoring system developed in Japan, in detecting covert atrial fibrillation in patients with cryptogenic stroke: A case report
Rationale: Subcutaneous implantable electrocardiographs are highly effective in detecting covert atrial fibrillation (AF) in cryptogenic stroke. However, these invasive devices are not indicated for all cryptogenic stroke patients, and noninvasive improvements over conventional Holter-type ambulatory electrocardiography are needed. We evaluated the clinical application and effectiveness of Duranta (ImageONE Co., Ltd.), a wireless patch-type electrocardiographic monitoring system developed in Japan for chronically ill patients or home-based patients at the end of life. A Duranta device was used to detect covert AF in patien...
Source: Medicine - February 1, 2017 Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Embolic Protection Devices During TAVI: Current Evidence and Uncertainties
In conclusion, despite embolic protection devices demonstrating reductions in the total cerebral lesion volume on diffusion-weighted magnetic resonance imaging, the clinical efficacy in terms of preventing stroke/cognitive decline requires confirmation in larger studies.
Source: Revista Espanola de Cardiologia - September 13, 2016 Category: Cardiology Source Type: research
Real-time phase contrast magnetic resonance imaging for assessment of haemodynamics: from phantom to patients
Conclusions
The real-time sequence is accurate compared to conventional segmented PC-MRI. Its applicability in Afib was shown. Real-time PC-MRI might become a valuable tool in arrhythmia.
Key Points
• Assessment of haemodynamics is crucial in many cardiac diseases.
• Arrhythmias are a major limitation of conventional techniques in cardiac magnetic resonance.
• A real-time technique, which allows application in arrhythmia, was validated.
...
Source: European Radiology - March 5, 2016 Category: Radiology Source Type: research
Neurological damage after transcatheter aortic valve implantation compared with surgical aortic valve replacement in intermediate risk patients
Conclusions
TAVI and SAVR were associated with a similar rate of acute silent ischemic cerebral lesions in intermediate risk patients. Although acute lesions occurred very frequently in both strategies, their cognitive impact was not clinically relevant.
Source: Clinical Research in Cardiology - December 8, 2015 Category: Cardiology Source Type: research
Echocardiography Underestimates Stroke Volume and Aortic Valve Area: Implications for Patients With Small-Area Low-Gradient Aortic Stenosis
Conclusions Echocardiography underestimated LVOTarea, stroke volume, and therefore AVA, compared with MRI. The thresholds based on current guidelines were also inconsistent. In combination, these factors explain > 40% of patients with discordant small-area low-gradient AS.
Source: Canadian Journal of Cardiology - November 1, 2014 Category: Cardiology Source Type: research
Stroke after Aortic Valve Surgery: Results from a Prospective Cohort.
CONCLUSIONS: Clinical stroke after AVR was more common than previously reported, more than double for this same cohort in the STS database, and silent cerebral infarctions were detected in over half of patients undergoing AVR. Clinical stroke complicating AVR is associated with increased length of stay and mortality.
PMID: 24690611 [PubMed - as supplied by publisher]
Source: Circulation - April 1, 2014 Category: Cardiology Authors: Messé SR, Acker MA, Kasner SE, Fanning M, Giovannetti T, Ratcliffe SJ, Bilello M, Szeto WY, Bavaria JE, Hargrove WC, Mohler ER, Floyd TF, for the Determining Neurologic Outcomes from Valve Operations (DeNOVO) investigators Tags: Circulation Source Type: research
