Results 111 to 120 of about 36,622 (316)

Heart-like fair queuing algorithms (HLFQA) [PDF]

open access: yes, 2006
We propose a new family of fair, work conserving traffic scheduling mechanisms that imitate the behavior of the human heart in the cardiovascular system.
Collier, Martin, Dragos, Radu-Calin
core   +1 more source

Complete Heart Block Lacking Functional Anatomical Impairment in the Conduction System

open access: yesPakistan Journal of Medicine and Dentistry
Introduction: Complete heart block also known as third-degree atrioventricular block (AV block) is a condition in which there is no conduction of the impulse produce in the sinoatrial node (SA node) in the atrium to the ventricle.1 Complete heart ...
Shazia Yasir, Komal Owais, Ishratullah
doaj  

Morphological Substrates for Atrial Arrhythmogenesis in a Heart With Atrioventricular Septal Defect

open access: yesFrontiers in Physiology, 2018
Due to advances in corrective surgery, congenital heart disease has an ever growing patient population. Atrial arrhythmias are frequently observed pre- and post-surgical correction. Pharmaceutical antiarrhythmic therapy is not always effective, therefore
Robert S. Stephenson   +7 more
doaj   +1 more source

Reversing Blood Flows Act through klf2a to Ensure Normal Valvulogenesis in the Developing Heart [PDF]

open access: yes, 2009
Heart valve anomalies are some of the most common congenital heart defects, yet neither the genetic nor the epigenetic forces guiding heart valve development are well understood.
A. C Oates   +60 more
core   +5 more sources

Fundamentals of System Design for Cardiac Pulsed Field Ablation: Optimization of Safety, Efficacy, and Usability

open access: yesPacing and Clinical Electrophysiology, EarlyView.
ABSTRACT The goal of a cardiac pulsed field ablation (PFA) system is to provide safe, effective, and usable therapy for the treatment of cardiac arrhythmias. Achieving this goal is a complex exercise in system design, requiring optimization of catheter, waveform, and dosing. This optimization is often iterative, as myriad design factors are balanced to
Brendan Koop
wiley   +1 more source

Diastolic And Systolic Right Ventricular Dysfunction Precedes Left Ventricular Dysfunction In Patients Paced From Right Ventricular Apex [PDF]

open access: yes, 2006
Background: Cardiac dysfunction after right ventricular (RV) apical pacing is well known but its extent, time frame of appearance and individual effect on left ventricular (LV), RV systolic and diastolic parameters has not evaluated in a systematic ...
Bansal, Sandeep   +7 more
core  

Cardiac conduction system and the electrocardiogram of the common hippopotamus (Hippopotamus amphibius)

open access: yesExperimental Physiology, EarlyView.
Abstract The common hippopotamus (Hippopotamus amphibius) shares a common terrestrial ancestor with whales (Cetacea) and has independently evolved similar physiological adaptations to their aquatic lifestyle. Although several studies have explored the electrical signalling in whale hearts, the understanding of the conduction system and electrical ...
Morten B. Thomsen   +12 more
wiley   +1 more source

Electrophysiology Study for Complex Supraventricular Tachycardia in Congenital Heart Disease Patients With Single‐Ventricle Physiology

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundSupraventricular tachycardia (SVT) is common in complex congenital heart disease (CCHD) patients with single‐ventricle physiology and may cause hemodynamic deterioration.
Shuenn‐Nan Chiu   +5 more
doaj   +1 more source

Multiple Arrhythmogenic Substrate for Tachycardia in a Patient with Frequent Palpitations [PDF]

open access: yes, 2005
We report a 26-year-old woman with frequent episodes of palpitation and dizziness. Resting electrocardiography showed no evidence of ventricular preexcitation.
Arya, Arash   +5 more
core   +2 more sources

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