Results 121 to 130 of about 49,045 (265)

Aortic Valve Stenosis and Insufficiency Combined With Aortic Coarctation

open access: yesJACC: Case Reports
The coexistence of aortic valve stenosis and regurgitation with native coarctation is a rare and complex condition in adults, especially those with significant surgical risks, complicating management.A 60-year-old male with poorly controlled hypertension, chronic kidney disease, and atrial fibrillation presented with progressive dyspnea and chest ...
Hu, Tao, Tu, Weiling, Li, Linfeng
openaire   +2 more sources

Quadricuspid aortic valve associated with aortic insufficiency.

open access: yesJapanese Journal of Cardiovascular Surgery, 1989
33歳,男性,大動脈弁閉鎖不全.手術時,大動脈4尖弁であることが判明,右冠尖と左冠尖の間に過剰尖があり,この三つはほぼ同大,無冠尖が小さかった.Bjork-Shiley弁で置換,術後経過は良好である.大動脈4尖弁はまれで,報告は39例,大多数が成人になってから大動脈弁閉鎖不全となり,手術報告は9例である.最近,大動脈造影,心エコーにより診断可能となった.文献例の調査により,本症を過剰尖の位置により2群にわけることを提案した,I型は過剰尖が右冠尖と左冠尖の間,すなわち前方にあり,報告例はこれに属する.II型は過剰尖が右冠尖と無冠尖の間,すなわち後方にあり,この場合は全例,過剰尖が小さい.
Shunichi INAMURA   +3 more
openaire   +2 more sources

Sub total aortic replacement using simultaneous Bentall and elephant trunk procedure [PDF]

open access: yes, 2011
A 22 year old female with valvular heart disease, moderate mitral valve insufficiency, moderate aortic insufficiency, extensive aneurysmal dilatation of the entire ascending aorta and arch, and segmental dilatation of descending aorta underwent entire ...
Darr, Umer, Kisat, Mehreen
core   +1 more source

Transfusion‐related alpha‐gal syndrome: Two new cases expanding the demographic and geographic spectrum, and evidence of a diagnostic gap in allergic transfusion reaction evaluation

open access: yesTransfusion, EarlyView.
Abstract Background Transfusion‐related alpha‐gal syndrome (TRAGS) has recently been proposed as a cause of allergic transfusion reactions (ATRs) in which alpha‐gal‐specific IgE in sensitized group O (or potentially group A) recipients reacts with epitopes on group B or AB plasma‐containing components.
Mackenzie Foster   +9 more
wiley   +1 more source

Bicuspid Aortic Valve Disease and Ascending Aortic Aneurysms: Gaps in Knowledge

open access: yesCardiology Research and Practice, 2012
The bicuspid aortic valve is the most common congenital cardiac anomaly in developed nations. The abnormal bicuspid morphology of the aortic valve results in valvular dysfunction and subsequent hemodynamic derangements. However, the clinical presentation
Katie L. Losenno   +2 more
doaj   +1 more source

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

open access: yesExperimental Physiology, EarlyView.
Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu   +4 more
wiley   +1 more source

Elucidating the cellular determinants of the end‐systolic pressure‐volume relationship of the heart via computational modelling

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Using a multiscale computational model of left ventricular electromechanics, we investigated how sarcomere dynamics influence the end‐systolic pressure‐volume (ESPV) relationship in ejecting beats compared to isovolumetric beats.
Francesco Regazzoni   +2 more
wiley   +1 more source

Balloon valvuloplasty for aortic stenosis using umbilical vein access in a newborn: First experience in Turkey

open access: yesTürk Kardiyoloji Derneği Arşivi, 2016
Summary– Balloon valvuloplasty is an effective therapy for severe congenital aortic valve stenosis, with mild aortic insufficiency and minimal intermediate-term restenosis.
Kemal Nişli   +2 more
doaj   +1 more source

Haemodynamic‐energetic mechanism of sudden cardiac death in severe aortic stenosis: A modelling study

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley   +1 more source

Development and evaluation of an impedance cardiographic system to measure cardiac output and other cardiac parameters Final progress report 1 Jul. 1969 - 31 Dec. 1970 [PDF]

open access: yes
Performance of impedance cardiograph for measuring heart rate and body ...
From, A. H. L.   +3 more
core   +1 more source

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