Results 21 to 30 of about 2,286,837 (350)

Randomized trial of conventional transseptal needle versus radiofrequency energy needle puncture for left atrial access (the TRAVERSE-LA study). [PDF]

open access: yes, 2013
BackgroundTransseptal puncture is a critical step in achieving left atrial (LA) access for a variety of cardiac procedures. Although the mechanical Brockenbrough needle has historically been used for this procedure, a needle employing radiofrequency (RF)
Badhwar, Nitish   +13 more
core   +1 more source

Will the real ventricular architecture please stand up? [PDF]

open access: yes, 2017
Ventricular twisting, essential for cardiac function, is attributed to the contraction of myocardial helical fibers. The exact relationship between ventricular anatomy and function remains to be determined, but one commonly used explanatory model is the ...
Hoffman, Julien IE
core   +1 more source

Fetal heterotaxy with tricuspid atresia, pulmonary atresia, and isomerism of the right atrial appendages at 22 weeks. [PDF]

open access: yes, 2013
We report the accurate prenatal diagnosis at 22 weeks gestation of right atrial isomerism in association with tricuspid atresia. Several distinctive sonographic features of isomerism of the right atrial appendages were present in this fetus: complex ...
Richardson, Randy R   +3 more
core   +2 more sources

Close Proximity of Left Anterior Descending Artery to the Right Ventricular Lead Apparently Implanted into the Mid-septum

open access: yesIndian Pacing and Electrophysiology Journal, 2014
Right ventricular (RV) mid-septal pacing should have fewer negative effects on left ventricular function compared to apical pacing. However, targeting the mid-septum may be technically challenging since it is usually done with two-dimensional fluoroscopy.
Pavel Osmancik, MD, PhD, FESC, Petr Stros, MD
doaj   +1 more source

Congestive Heart Failure Leads to Prolongation of the PR Interval and Atrioventricular Junction Enlargement and Ion Channel Remodelling in the Rabbit. [PDF]

open access: yesPLoS ONE, 2015
Heart failure is a major killer worldwide. Atrioventricular conduction block is common in heart failure; it is associated with worse outcomes and can lead to syncope and bradycardic death.
Theodora Nikolaidou   +13 more
doaj   +1 more source

Transthoracic three-dimensional echocardiography for the assessment of straddling tricuspid or mitral valves [PDF]

open access: yes, 2008
Background The advent of 3D echocardiography has provided a technique which, potentially, could afford significant additional information over conventional cross-sectional echocardiography in the assessment of patients with straddling atrioventricular ...
Anderson, RH   +3 more
core   +1 more source

What Is the Heart? Anatomy, Function, Pathophysiology, and Misconceptions

open access: yesJournal of Cardiovascular Development and Disease, 2018
Cardiac dynamics are traditionally linked to a left ventricle, right ventricle, and septum morphology, a topography that differs from the heart’s five-century-old anatomic description of containing a helix and circumferential wrap architectural ...
Gerald D. Buckberg   +3 more
doaj   +1 more source

Accuracy of prediction of infarct-related arrhythmic circuits from image-based models reconstructed from low and high resolution MRI. [PDF]

open access: yes, 2015
Identification of optimal ablation sites in hearts with infarct-related ventricular tachycardia (VT) remains difficult to achieve with the current catheter-based mapping techniques.
Arevalo, Hermenegild   +7 more
core   +2 more sources

Persistent High Grade Flurodeoxyglucose Uptake in Lipomatous Hypertrophy of the Interatrial Septum on Dual Time Point Imaging and with Ambient Warming

open access: yesWorld Journal of Nuclear Medicine, 2014
Lipomatous hypertrophy of the interatrial septum (LHIS) is a relatively uncommon disorder of the heart characterized by benign fatty infiltration of the interatrial septum that usually spares the fossa ovalis.
K Kamaleshwaran   +4 more
doaj   +1 more source

A rare case report of hypertrophic cardiomyopathy induced by catecholamine-producing tumor [PDF]

open access: yes, 2018
RATIONALE: Catecholamine-producing tumors are rare, occurring in less than 0.2% of patients with hypertension, but can have relevant cardiovascular morbidity and mortality. PATIENT CONCERNS: A 37-year-old woman presented with a history of dyspnea, chest
Bisogni, Valeria   +12 more
core   +1 more source

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