Inappropriate sinus tachycardia medical therapy
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Inappropriate sinus tachycardia Microchapters |
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Differentiating Inappropriate Sinus Tachycardia from other Medical Conditions |
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Diagnosis |
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Treatment |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Medical Therapy
Pharmacotherapy
Treatments in the form of pharmacological therapy or catheter ablation are available, although it is currently difficult to treat successfully.
Beta Blockers
In so far as the pathophysiology of IST involves abnormal sensitivity to adrenaline, betaa-blockers can be helpful.
Calcium Channel Blockers
Although calcium channel blockers slow conduction through the AV node, they have been marginally effective in the treatment of IST.
Ivabradine
A new selective sinus node inhibitor Ivabradine is also being used to treat IST.
Treatments Related to Dysautonomia and POTS
In so far as the underlying pathophysiology may involve a dysautonomia and features of Postural orthostatic tachycardia syndrome (POTS), some therapies more commonly used to treat these disorders have been tried:
POTS and dysautonomia have been associated with decreases in blood volume, and this drug promotes sodium retention.
Midodrine increases vasoconstriction, and prevents falls in blood pressure.
SSRIs have proven effective in treating some patients with dysautonomia.