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 - Category: Cardiology Authors: Tags: Heart Failure Source Type: research

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Publication date: Available online 27 September 2019Source: The LancetAuthor(s): Jonas Lanz, Won-Keun Kim, Thomas Walther, Christof Burgdorf, Helge Möllmann, Axel Linke, Simon Redwood, Christian Thilo, Michael Hilker, Michael Joner, Holger Thiele, Lars Conzelmann, Lenard Conradi, Sebastian Kerber, Gerhard Schymik, Bernard Prendergast, Oliver Husser, Stefan Stortecky, Dik Heg, Peter JüniSummaryBackgroundTranscatheter aortic valve replacement (TAVR) is the preferred treatment option for older patients with symptomatic severe aortic stenosis. Differences in the properties of available TAVR systems can affect clinica...
Source: The Lancet - Category: General Medicine Source Type: research
We present a case where we performed TAVI in an 89-year-old man with severe AS, a shaggy aorta, a porcelain aorta, and congestive heart failure. TAVI via a transfemoral approach was performed using a modified isolation technique with cannulation from bilateral axillary arteries and cardiopulmonary bypass to prevent brain embolism. The catheter-delivered embolic protection device is necessary to pass the diseased aorta, but the modified isolation technique can be used without any contact with the shaggy aorta. Embolism did not occur, and his heart failure improved immediately.
Source: Journal of Cardiology Cases - Category: Cardiology Source Type: research
Risk assessment for transcatheter aortic valve implantation (TAVI) patients remains challenging, especially in elderly and high-risk candidates. Although several risk factors contribute to increased morbidity and mortality after TAVI, simple risk scores for routine use are lacking. Applying the CHA2DS2-VASC (congestive heart failure, hypertension, age  ≥ 75 years, diabetes, prior stroke, vascular disease, age 65–74 years, sex [female] category) score as a novel risk stratification tool for conditions other than atrial fibrillation and stroke prevention has been previously examined; however, its usefu...
Source: The American Journal of Cardiology - Category: Cardiology Authors: Source Type: research
Background— With improved survival of patients undergoing primary bioprosthetic aortic valve replacement (AVR), reoperation to relieve severe prosthetic aortic stenosis (PAS) is increasing. Timing of redo surgery in asymptomatic/minimally symptomatic patients remains controversial. Left ventricular (LV) global longitudinal strain (GLS) is a marker of subclinical LV dysfunction. In asymptomatic/minimally symptomatic patients with severe PAS undergoing redo AVR, we sought to determine whether LV-GLS provides incremental prognostic use. Methods and Results— We studied 191 patients with severe bioprosthetic PAS (6...
Source: Circulation: Cardiovascular Imaging - Category: Radiology Authors: Tags: Echocardiography, Aortic Valve Replacement/Transcatheter Aortic Valve Implantation, Mortality/Survival Valvular Heart Disease Source Type: research
Please wait while the activity loads. If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled. If loading fails, click here to try again Click on the 'Start' button to begin the mock test. After answering all questions, click on the 'Get Results' button to display your score and the explanations. There is no time limit for this mock test. Start Congratulations - you have completed DM / DNB Cardiology Entrance Mock Test 24. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rat...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
Commentary on: Kapadia SR, Leon MB, Makkar RR, et al., PARTNER trial investigators. 5-year outcomes of transcatheter aortic valve replacement compared with standard treatment for patients with inoperable aortic stenosis (PARTNER 1): a randomised controlled trial. Lancet 2015;385:2485–91 and Mack MJ, Leon MB, Smith CR, et al., PARTNER 1 trial investigators. 5-year outcomes of transcatheter aortic valve replacement or surgical aortic valve replacement for high surgical risk patients with aortic stenosis (PARTNER1): a randomised controlled trial. Lancet 2015;385:2477–84. Context When calcific aortic stenosis is as...
Source: Evidence-Based Medicine - Category: Internal Medicine Authors: Tags: Clinical trials (epidemiology), Epidemiologic studies, Drugs: cardiovascular system, Heart failure, Stroke, Interventional cardiology, Valvar diseases Therapeutics/Prevention Source Type: research
AbstractsAims Reduced stroke volume index (SVI) in patients with severe aortic stenosis (AS) and preserved ejection fraction (EF) is associated with adverse outcomes even after aortic valve replacement (AVR), although specific reasons for impaired survival in this group are unknown. We investigated predictors of post-AVR survival and specific cause of death in patients with AS according to SVI. Methods and results Among 1120 consecutive patients with severe AS (aortic valve area
Source: European Journal of Echocardiography - Category: Cardiology Authors: Tags: ORIGINAL ARTICLES Source Type: research
ObjectivesWe compared the outcomes of transcatheter aortic valve implantation (TAVI) in three different aortic stenosis syndromes: paradoxical low‐flow low‐gradient aortic stenosis (PLFLG), high‐gradient aortic stenosis (HGAS), and low ejection fraction low‐gradient severe aortic stenosis (LEF‐LG). BackgroundOutcomes for PLFLG patients after TAVI procedure are not well known. MethodsBetween 2010 and 2013, patients with severe (indexed aortic valve area iAVA≤0.6 cm2/m2) symptomatic aortic stenosis were consecutively referred to our institution for TAVI because of multiple comorbidities and excessive surgical ri...
Source: Catheterization and Cardiovascular Interventions - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Valvular and Structural Heart Diseases Source Type: research
Conclusions: Many unnecessary tests are obtained to evaluate syncope. Selecting tests based on history and examination and prioritizing less expensive and higher yield tests would ensure a more informed and cost-effective approach to evaluating older patients with syncope._____________________________________________________________________________4)    Reed MJ.  The ROSE (Risk Stratification of syncope in the emergency department) Study.  J Am Coll Cardiol, 2010; 55:713-721, doi:10.1016/j.jacc.2009.09.049  Objectives: The aim of this study was to develop and validate a clinical deci...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
Conclusions: Many unnecessary tests are obtained to evaluate syncope. Selecting tests based on history and examination and prioritizing less expensive and higher yield tests would ensure a more informed and cost-effective approach to evaluating older patients with syncope._____________________________________________________________________________4)    Reed MJ.  The ROSE (Risk Stratification of syncope in the emergency department) Study.  J Am Coll Cardiol, 2010; 55:713-721, doi:10.1016/j.jacc.2009.09.049  Objectives: The aim of this study was to develop and validate a clinical deci...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
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