Abstract and Defining Principles of Dysrhythmia Dysrhythmia, often used interchangeably with the term arrhythmia, refers to any abnormality in the heart’s electrical conduction system, leading to an irregular or aberrant heartbeat. This critical cardiac condition represents a deviation from the normal sinus rhythm, which is the standard, steady rhythm generated by the sinoatrial (SA) node. […]
BRADYRHYTHMIA: An Encyclopedia Entry Introduction: Defining Bradyarrhythmia A bradyarrhythmia, often synonymously referred to as bradycardia or bradyrhythmia, represents a pathological condition characterized by an abnormally slow heart rhythm. Physiologically, the typical resting heart rate for a healthy adult falls within the range of 60 to 100 beats per minute (BPM). When the heart consistently beats […]
The Psychology and Psychophysiology of Tachycardia The Core Definition: A Psychophysiological Perspective Tachycardia, derived from the Greek terms meaning “swift” and “heart,” is fundamentally defined in medicine as an abnormally rapid heart rate, typically exceeding 100 beats per minute (bpm) in a resting adult. From a psychophysiological perspective, however, tachycardia is viewed less as a […]