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Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). [1] While bradycardia can result from various pathologic processes, it is commonly a physiologic response to cardiovascular conditioning or due to asymptomatic type 1 atrioventricular block. Resting heart rates of less than 50 BPM are often normal ...
lightheadedness. dizziness. hypotension. vertigo. syncope. Diagnostic method. electrocardiogram. Sinus bradycardia is a sinus rhythm with a reduced rate of electrical discharge from the sinoatrial node, resulting in a bradycardia, a heart rate that is lower than the normal range (60–100 beats per minute for adult humans). [1][2]
Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm). The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide. It is also modulated by numerous factors, including (but not limited to) genetics ...
Sinus tachycardia is a normal response to physical exercise or other stress, when the heart rate increases to meet the body's higher demand for energy and oxygen, but sinus tachycardia can also be caused by a health problem. An elite athlete's heart recorded during a maximum effort workout maintaining over 180 bpm for 10 minutes.
Panayiotopoulos syndrome (named after C. P. Panayiotopoulos) is a common idiopathic childhood-related seizure disorder that occurs exclusively in otherwise normal children (idiopathic epilepsy) and manifests mainly with autonomic epileptic seizures and autonomic status epilepticus. [1] An expert consensus has defined Panayiotopoulos syndrome as ...
For humans, the typical respiratory rate for a healthy adult at rest is 12–15 breaths per minute. [10] The respiratory center sets the quiet respiratory rhythm at around two seconds for an inhalation and three seconds exhalation. This gives the lower of the average rate at 12 breaths per minute. Average resting respiratory rates by age are ...
Intraventricular block. ECG characteristics of an intraventricular block subtype - RBBB showing wide QRS complexes with a terminal R wave in lead V1 and a prolonged S wave in lead V6. An intraventricular block is a heart conduction disorder — heart block of the ventricles of the heart. [1] An example is a right bundle branch block, right ...
Tempo. In musical terminology, tempo (Italian for 'time'; plural 'tempos', or tempi from the Italian plural), also known as beats per minute, is the speed or pace of a given composition. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and is usually measured ...