What Is Supraventricular Tachycardia Market Research?

By Author: haven smith
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In patients who are hemodynamically stable and showing a regular rhythm with visible P waves on the electrocardiogram, then an assessment of the atrial rate, the relationship between the atrial and ventricular pacing, P-wave morphology and the P-wave position in the rhythm cycle is required.

Type of PSVT present (atrial tachycardia, multifocal atrial tachycardia, atrial flutter, atrial flutter with a variable block, intra-atrial reentrant tachycardia, sinus tachycardia, sinoatrial node re-entrant tachycardia, atrioventricular nodal re-entrant tachycardia, atrioventricular reciprocating tachycardia, junctional ectopic tachycardia, and nonparoxysmal junctional tachycardia) determines the treatment.

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In patients who are hemodynamically stable and have an electrocardiogram that shows a regular rhythm with undetectable P waves, Valsalva maneuvers, carotid sinus massage, or intravenous adenosine might be used to slow the ventricular rate or convert the ...
... rhythm into sinus rhythm and thus aid in the diagnosis.

In some instances, increasing the electrocardiogram paper speed from 25 mm per second to 50 mm per second might help as well. If intravenous adenosine does not work, then intravenous or oral calcium channel blockers or beta-blockers should be used.

Patients with PSVTs must also undergo evaluation for any underlying pre-excitation syndrome, and patients who fail medical treatment or those who might need radiofrequency catheter ablation need cardiology consultation.

There is a stepwise approach to treating the rapid heartbeat of PSVT. Treatment will depend on what is causing the SVT and symptoms. In rare instances, treatment for supraventricular tachycardia may involve use of a small, implantable device called a pacemaker to emit electrical impulses that stimulate heart to beat at a normal rate.

The pacemaker is placed under the skin near the collarbone in a minor surgical procedure. An insulated wire extends from the device to the heart, where it’s permanently anchored. Vagal maneuvers are an appropriate first treatment option in patients with hemodynamically stable SVT.

Studies report an approximately 25% success rate, although reported rates vary widely in the literature (6%-54%). The most commonly performed maneuvers are the Valsalva maneuver and carotid sinus massage.

The increase in intrathoracic pressure resulting from the Valsalva maneuver stimulates aortic and carotid baroreceptors, causing an increase in vagal input into the atrioventricular node.

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