Results 41 to 50 of about 412,316 (368)

Causes of bradycardia with static respiratory hypoxia in athletes

open access: yesСпортивная медицина: наука и практика, 2021
According to some literature data, during voluntary long-term breath holding (BH), the heart rate (HR) increases, and according to others, it decreases.Objective: to determine the psychophysiological parameters that cause a change in HR during BH in ...
Yu. E. Vaguine
doaj   +1 more source

Supraventricular Tachycardia Detection and Classification Model of ECG signal Using Machine Learning [PDF]

open access: yesarXiv, 2021
Investigation on the electrocardiogram (ECG) signals is an essential way to diagnose heart disease since the ECG process is noninvasive and easy to use. This work presents a supraventricular arrhythmia prediction model consisting of a few stages, including filtering of noise, a unique collection of ECG characteristics, and automated learning ...
arxiv  

Modeling Excitable Systems: Reentrant Tachycardia [PDF]

open access: yesAm. J. Phys. 78, 56-63 (2010), 2008
Excitable membranes are an important type of nonlinear dynamical system and their study can be used to provide a connection between physical and biological circuits. We discuss two models of excitable membranes important in cardiac and neural tissues.
arxiv   +1 more source

Stereotactic radiosurgery for ablation of ventricular tachycardia.

open access: yesEuropace, 2019
AIMS Stereotactic body radiotherapy (SBRT) for ventricular tachycardias (VTs) could be an option after failed catheter ablation. In this study, we analysed the long-term efficacy and toxicity of SBRT applied as a bail-out procedure.
R. Neuwirth   +11 more
semanticscholar   +1 more source

Postural Orthostatic Tachycardia Syndrome.

open access: yesTexas Heart Institute Journal, 2019
Postural orthostatic tachycardia syndrome (POTS) is one of a group of disorders that have orthostatic intolerance (OI) as their primary symptom. OI describes a condition in which an excessively reduced volume of blood returns to the heart after an ...
Payam Safavi‐Naeini, Mehdi Razavi
semanticscholar   +1 more source

Rare presentation of hyperthyroidism as thyrotoxic crisis

open access: yesJournal of Dr. NTR University of Health Sciences, 2019
Thyrotoxic crisis is a rare manifestation of thyroid disease. It is an end manifestation of hyperthyroidism. Their life-threatening manifestations and functional reversible features on treatment make every clinician to think about diagnosis of thyrotoxic
Varun Karri
doaj   +1 more source

Postural Hyperventilation as a Cause of Postural Tachycardia Syndrome: Increased Systemic Vascular Resistance and Decreased Cardiac Output When Upright in All Postural Tachycardia Syndrome Variants

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
Background Postural tachycardia syndrome (POTS) is a heterogeneous condition. We stratified patients previously evaluated for POTS on the basis of supine resting cardiac output (CO) or with the complaint of platypnea or “shortness of breath” during ...
Julian M. Stewart   +6 more
doaj   +1 more source

Ventricular tachycardia associated with lacosamide co-medication in drug-resistant epilepsy. [PDF]

open access: yes, 2012
We report a case of sustained ventricular tachycardia following the initiation of lacosamide as adjunctive epilepsy treatment. A 49-year-old male with intractable frontal lobe seizures experienced severe ventricular tachycardia following the addition of ...
DeGiorgio, Andrew C   +3 more
core   +1 more source

Clinical case: paroxysmal tachycardia attack in a newborn with multiple heart rhabdomyomas [PDF]

open access: yesСаратовский научно-медицинский журнал, 2016
The purpose of the clinical observation is to study the early symptoms of multiple heart rhabdomiomas of a newborn; to draw the attention of specialists on one of the rarely occurred problems in the neonatal practice.
Chernenkov Yu.V.   +2 more
doaj  

Pulmonary sequestration: A rare case in a patient with acute chest pain and palpitation mimicking the acute coronary syndrome

open access: yesLung India, 2015
Pulmonary sequestration (PS), a non-functioning lung tissue, which lacks the normal communication with the tracheobronchial tree and receives the blood supply from the systemic circulation, is a rare congenital malformation that comprises 0.5-6% of all ...
Rahim Mahmodlou   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy