Results 91 to 100 of about 120,801 (299)

Aortic valve replacement with preserved aortic valve homografts

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 1974
A total of 229 patients underwent aortic valve replacement with a preserved aortic valve homograft during a 7½ year period. The operative mortality rate was 4.8 per cent. Statistical analysis of follow-up data indicated that, for patients who survived the first 30 days after surgery, the 4 year survival rate was 94 per cent and the 7 year survival was ...
R B, Wallace, S P, Londe, J L, Titus
openaire   +2 more sources

Therapy for Myhre Syndrome: Goals, Misconceptions, and Current Agents

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Myhre Syndrome (MYHRS, MIM #139210) is a rare, multisystem connective tissue disorder caused by recurrent heterozygous gain‐of‐function pathogenic variants in the SMAD4 gene, a key player in TGF‐β signaling and a regulator of extracellular matrix homeostasis.
Alessandro De Falco   +2 more
wiley   +1 more source

Prediction of Turbulent Shear Stresses through Dysfunctional Bileaflet Mechanical Heart Valves using Computational Fluid Dynamics

open access: yes, 2018
There are more than 300,000 heart valves implanted annually worldwide with about 50% of them being mechanical valves. The heart valve replacement is often a common treatment for severe valvular disease.
Gamage, Peshala T.   +2 more
core   +1 more source

Arrhythmic risk in elderly patients candidates to transcatheter aortic valve replacement. predicative role of repolarization temporal dispersion [PDF]

open access: yes, 2019
Degenerative aortic valve stenosis (AS) is associated to ventricular arrhythmias and sudden cardiac death, as well as mental stress in specific patients. In such a context, substrate, autonomic imbalance as well as repolarization dispersion abnormalities ...
Crapanzano, Davide   +11 more
core   +1 more source

Isovolumic relaxation strain imaging is an accurate and sensitive approach for detection of active diastolic dysfunction: A preclinical study

open access: yesAnimal Models and Experimental Medicine, EarlyView.
A modified approach was developed to accurately identify the isovolumetric relaxation time (IVRT) using an apical three‐chamber view. Compared with conventional echocardiography, isovolumic relaxation strain imaging (IVSI) helps to detect the earlier alternations of diastolic function in transverse aortic constriction (TAC) mice.
Jingjing Liang   +3 more
wiley   +1 more source

Medium and long-term aortic remodeling following aortic valve replacement combined with anticoagulation for DeBakey I aortic dissection

open access: yesFrontiers in Cardiovascular Medicine
BackgroundTotal arch replacement with frozen elephant trunk has achieved promising outcomes for DeBakey type I aortic dissection. However, the effects of anticoagulation on the distal false lumen and unfavorable remodeling of the distal aorta after ...
Yuanyuan Li   +7 more
doaj   +1 more source

Surgery of the dilated aortic root and ascending aorta in pediatric patients: techniques and results [PDF]

open access: yes, 2017
Objective: Dilatation of the aortic root is a well-known cardiovascular manifestation in children and adult patients with connective tissue disease (e.g. Marfan syndrome).
Berdat, Pascal   +5 more
core  

Wireless blood pressure sensor implantation in sheep: A detailed technique

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Twelve adult sheep underwent wireless blood pressure sensor implantation. The procedure lasted an average of 36 min, with mean systolic and diastolic blood pressures of 93 ± 6 and 65 ± 5 mmHg, respectively. This rapid, minimally invasive protocol is a powerful platform for cardiovascular device development.
David Santer   +10 more
wiley   +1 more source

Age and gender effects on echocardiographic and histopathological cardiac phenotypes in healthy adult mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study investigated the impact of age and sex on cardiac phenotypes in healthy adult C57BL/6J mice using echocardiography and histopathological analyses. Findings revealed that female mice demonstrated more pronounced global cardiac chamber dilation during aging.
Shuang Wen   +6 more
wiley   +1 more source

Early Structural Valve Deterioration and Cusp Tear Leading to Acute Heart Failure in a Second-Generation Trifecta Glide Technology Heart Valve [PDF]

open access: yesTexas Heart Institute Journal
This report highlights a case of early structural valve deterioration with a cusp tear in a second-generation Abbott Trifecta Glide Technology bioprosthetic heart valve.
Akiyoshi Yamamoto, MD   +3 more
doaj   +1 more source

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