Which treatment is recommended for supraventricular tachycardia (SVT)?

Adenosine administration is the recommended treatment for supraventricular tachycardia (SVT) because it acts rapidly to interrupt the reentrant pathways within the atrioventricular node, effectively restoring normal sinus rhythm. This medication is particularly useful in cases of paroxysmal SVT, where the arrhythmia occurs suddenly and may be characterized by a rapid heart rate, often exceeding 200 beats per minute. Adenosine works by causing transient heart block in the AV node, which helps to reset the electrical conduction system of the heart.

In clinical practice, the administration of adenosine is generally given as a rapid intravenous push, which allows for quick action and observation of the heart's response, often leading to immediate alleviation of symptoms associated with SVT. This treatment is especially relevant in the neonatal population, where swift intervention is critical to prevent complications from sustained tachycardia.

Other treatments mentioned are not indicated for SVT. Aspirin therapy is not a treatment for arrhythmias but is used in other contexts, such as thromboprophylaxis. Vasopressor support is typically employed in cases of hypotension rather than arrhythmias. Inhaled beta-agonists are used primarily for conditions such as