{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T12:26:59Z","timestamp":1753878419646,"version":"3.41.2"},"reference-count":21,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2019,4,16]],"date-time":"2019-04-16T00:00:00Z","timestamp":1555372800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2019,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The differential diagnosis of a supraventricular tachycardia (SVT) is accomplished using a number of pacing maneuvers. The incidence and mechanism of a single ventricular premature beat (VPB) on initiation and termination of tachycardia were evaluated during programmed electrical stimulation (PES) of the heart in patients with the two most common regular SVTs: atrioventricular re\u2010entrant tachycardia (AVNRT) and orthodromic atrioventricular tachycardia (AVRT).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Three hundred and thirty\u2010seven consecutive patients aged above 18\u00a0years with an inducible sustained AVNRT or AVRT were prospectively enrolled. Patients with more than one tachyarrhythmia mechanism were excluded. Two hundred and seventeen patients (64.4%) had typical slow\/fast AVNRT and 120 (35.6%) had an orthodromic AVRT using a rapidly conducting accessory pathway for V\u2010A conduction. In this cross\u2010sectional study, we specifically report the analysis of tachycardia induction and termination by a single VPB.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Tachycardia induction with a single VPB during sinus rhythm was seen in 7 of 120 AVRT and in only one of the 217 patients with AVNRT, (5.8% vs. 0.3%, <jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05). When a single VPB was delivered during basic ventricular pacing these values were 28% versus 4%, respectively, (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.001). Termination of tachycardia by a single VPB was observed in nine (4.1%) patients with AVNRT and in 57 (47.5%) with AVRT (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Initiation of SVT by a single VPB during sinus rhythm was uncommon and favored AVRT. Termination of SVT by a single VPB was commonly seen in AVRT but rarely in AVNRT. These findings can be of help when interpreting a noninvasive arrhythmia event recording.<\/jats:p><\/jats:sec>","DOI":"10.1111\/anec.12650","type":"journal-article","created":{"date-parts":[[2019,4,17]],"date-time":"2019-04-17T06:55:38Z","timestamp":1555484138000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["When and how\u00a0does a single ventricular premature beat initiate and terminate supraventricular tachycardia?"],"prefix":"10.1111","volume":"24","author":[{"given":"Magno","family":"Cunha Guerra","sequence":"first","affiliation":[{"name":"Faculdade Ci\u00eancias M\u00e9dicas Ci\u00eancias M\u00e9dicas\u2010MG Belo Horizonte Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yash","family":"Lokhandwala","sequence":"additional","affiliation":[{"name":"Arrhythmia Associates Mumbai 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