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==Overview==
==Overview==
Bradycardia is defined as a resting [[heart rate]] of under 60 beats per minute. It usually does not cause symptoms until the rate drops below 50 BPM. Once symptomatic, it can induce [[fatigue]], [[weakness]], [[dizziness]], [[nausea]], and [[fainting]] at very low rates.
Bradycardia is a condition typically described as a resting [[heart rate]] of under 60 beats per minute. It usually does not cause symptoms until the rate drops below 50 BPM. Once symptomatic, it can induce [[fatigue]], [[weakness]], [[dizziness]], [[nausea]], and [[fainting]] at very low rates. Numerous factors affect it and vary in part with age and physical conditioning. Sinus arrhythmia, changes in sinus rate due to respiratory cycles, often accompanies sinus bradycardia.


==References==
==References==

Revision as of 17:21, 24 August 2020

Bradycardia Microchapters

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Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Bradycardia from other Conditions

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: M.Umer Tariq [2]

Overview

Bradycardia is a condition typically described as a resting heart rate of under 60 beats per minute. It usually does not cause symptoms until the rate drops below 50 BPM. Once symptomatic, it can induce fatigue, weakness, dizziness, nausea, and fainting at very low rates. Numerous factors affect it and vary in part with age and physical conditioning. Sinus arrhythmia, changes in sinus rate due to respiratory cycles, often accompanies sinus bradycardia.

References

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