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Hi! My wife has Sinus tachycardia. Can you explain me what is Sinus Tachycardia? What are possible causes of this condition? What is treatment?

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Hi! Sinus tachycardia is defined as sinus rhythm with a rate of greater than 100 beats/min. The causes of Sinus Tachycardia can be a physiologic response to fever, intravascular volume depletion, hypermetabolism, anxiety or the administration of pharmacologic agents that dramatically increase sinus rate, such as catecholamines. Sinus tachycardia may also be a response to severe emotional distress, fright and strenuous exercise. Other causes may include a response to anemia, CHF, hemorrhage, extensive heart muscle damage associated with a reduction in cardiac output and pulmonary embolism. Physiologically, sinus tachycardia results from either vagal withdrawal and/or endogenous release of catecholamines.
One should not treat sinus tachycardia per se, but instead should be concerned with the reasons for its development. Doctor never treats sinus tachycardia: treat the cause of sinus tachycardia.
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