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Inappropriate sinus tachycardia in a dog
Author(s) -
Oliveira Pedro,
Arnott Holly,
Mavropoulou Antonia
Publication year - 2018
Publication title -
veterinary record case reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.165
H-Index - 4
ISSN - 2052-6121
DOI - 10.1136/vetreccr-2018-000624
Subject(s) - medicine , sinus tachycardia , sinus (botany) , cardiology , heart rate , tachycardia , sinus rhythm , cardiac function curve , electrocardiography , heart disease , anesthesia , atrial fibrillation , blood pressure , heart failure , botany , biology , genus
Inappropriate sinus tachycardia (IST) is a rare cardiac disturbance documented in humans in which the sinus heart rate is inappropriately elevated without an obvious cause or trigger. It is characterised by a rhythm originating in the sinus node with a heart rate above normal at rest without the influence of drugs, pain, cardiac or extracardiac disease. IST may be caused by abnormal structure or function of the sinus node or abnormal function of the autonomous nervous system. This report describes the case of a young dog with a resting heart rate of 140 bpm with electrocardiographic characteristics consistent with sinus tachycardia. Additional cardiac or extracardiac disorders were not identified and the dog was otherwise healthy and not receiving any medication. These findings were suggestive of IST.