Relationship between Atrio-Ventricular Conduction and Hemodynamics during Atrial Pacing in Horses

Autor:	Akio Amada, Katsuyoshi Kubo, Yoshiki Yamaya
Rok vydání:	1997
Předmět:	medicine.medical_specialty Atrial pacing Equine business.industry Central venous pressure Hemodynamics Blockade Autonomic nervous system Blood pressure Atrial rate Internal medicine Anesthesia cardiovascular system medicine Cardiology Ventricular conduction business
Zdroj:	Journal of Equine Science. 8:35-38
ISSN:	1347-7501 1340-3516
Popis:	The relationship between the atrioventricular (AV) conduction ratio and systolic blood pressure or right atrial pressure during atrial pacing was investigated before and after phamacological autonomic nervous blockade (PAB) in horses. The increase in the pacing rate decreased the AV conduction ratio. Systolic blood pressure increased when the AV conduction ratio became low, but the relevancy of the both stopped being recognized after PAB. Also right atrial pressure decreased with a decrease in the AV conduction ratio irrespective of the presence of PAB. These findings indicate that the onset mechanism of dropped beats involves an interaction among atrial rate, AV conduction, autonomic nervous system, and hemodynamics in horses with a second degree AV block.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8f2b76e691cff649d4bc400bdaefa9f8 https://doi.org/10.1294/jes.8.35 Zobrazit plný text záznamu