Supraventricular tachycardia: diagnosis and management.
- PubMed: 19046562
Supraventricular tachycardia (SVT) includes all forms of tachycardia\nthat either arise above the bifurcation of the bundle of His or that\nhave mechanisms dependent on the bundle of His. We conducted a review\nof the techniques used to differentiate the mechanisms of SVT. We\nsearched the PubMed and MEDLINE databases for English-language literature\npublished from 1970 to 2008. Articles were selected for either their\nhistorical importance or up-to-date clinical data. This review focuses\non techniques for scrutinizing electrocardiograms of patients, analyzing\nin particular the onset of tachycardia, the mode of tachycardia termination,\nand the effects of premature ventricular contractions, premature\natrial contractions, and aberrancy during tachycardia. Both short-term\nand long-term management of SVT are examined, including the urgent\ntreatment of patients in the emergency department. This review also\ndescribes management of patients who have ongoing symptomatic SVT,\noutlining such available treatment options as atrioventricular node-blocking\ndrugs, antiarrhythmic drugs, and catheter ablation.