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Tachycardia: Difference between revisions
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==Atrial arrhythmias== | ==Atrial arrhythmias== | ||
===Sinus Tachycardia=== | ===Sinus Tachycardia=== | ||
====Pathophysiology:==== When the sinus node fires with a frequency between 100-180bpm, the term sinustachycardia is used. The maximum heart rate a person can achieve during exercise can be calculated by subtracting the age in years from 210. Usually it is a physiological reaction to stress (exercise, inflammation, stress). External factors can increase the heart rate like coffee and alcohol or drugs. The term inappropriate sinus tachycardia is used when the sinus node has a exaggerated response to stress. | ====Pathophysiology:==== | ||
====Clinical diagnosis:====A sinus tachycardia usually has a gradual start and ending. Diagnosis on the ECG can be made by the morphology of the P-wave. The P-wave has the same morphology during sinus tachycardia as during normal sinus rhythm. | When the sinus node fires with a frequency between 100-180bpm, the term sinustachycardia is used. The maximum heart rate a person can achieve during exercise can be calculated by subtracting the age in years from 210. Usually it is a physiological reaction to stress (exercise, inflammation, stress). External factors can increase the heart rate like coffee and alcohol or drugs. The term inappropriate sinus tachycardia is used when the sinus node has a exaggerated response to stress. | ||
====Clinical diagnosis:==== | |||
A sinus tachycardia usually has a gradual start and ending. Diagnosis on the ECG can be made by the morphology of the P-wave. The P-wave has the same morphology during sinus tachycardia as during normal sinus rhythm. | |||
* <b>Management: </b> | * <b>Management: </b> | ||
===Atrial Tachycardia=== | ===Atrial Tachycardia=== | ||