Final answer:
Alternative treatments for Supraventricular Tachycardia (SVT) in patients intolerant to adenosine include beta blockers like propranolol and metoprolol, and calcium channel blockers. These agents work by modulating heart rate and myocardial contractility. Careful consideration of the patient's health is vital when choosing an alternative medication.
Step-by-step explanation:
Agents alternative to adenosine for treating Supraventricular Tachycardia (SVT) in patients who have intolerances include both beta blockers and calcium channel blockers. Beta blockers such as propranolol, which nonspecifically blocks beta receptors, and metoprolol, which specifically blocks the beta-1 receptor, can be used to manage SVT by decreasing heart rate and preventing excessive cardiac acceleration. Calcium channel blockers, consisting of dihydropyridine, phenylalkylamine, and benzothiazepine classes, work by reducing heart muscle contraction strength and slowing down the overall heart rate, making them suitable alternatives for SVT management.
Additionally, drugs such as digitalis may be beneficial by increasing the strength of heart contraction and lowering the heart rate through modification of calcium ion dynamics within the myocardial cells. It is crucial for healthcare providers to carefully consider a patient's overall health status and specific contraindications when selecting an appropriate alternative medication for adenosine in the treatment of SVT.