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Year : 2021  |  Volume : 6  |  Issue : 2  |  Page : 90-92

A decremental response seen to a his refractory premature ventricular complex in a patient with short ventriculoatrial interval: A case report

1 Department of Electrophysiology, McLaren Greater Lansing Hospital, Lansing, MI, USA
2 Department of Internal Medicine, Samaritan Medical Center, Watertown, NY, USA
3 Department of Electrophysiology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
4 Department of Electrophysiology, Walter Reed National Medical Center, Bethesda, MD, USA

Correspondence Address:
Dr. Khalil Kanjwal
Department of Electrophysiology, McLaren Greater Lansing Hospital, Lansing, MI 48901
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijhr.ijhr_10_21

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We report on a patient with supraventricular tachycardia, mediated through a left posterior concealed accessory pathway (AP). During an electrophysiology study, the His refractory premature ventricular complex (PVC) delayed in the next atrial signal and was suggestive of the decremental pathway; however, further maneuvers and tachycardia features were suggestive of a nondecremental AP. In this paper, we discuss possible mechanisms of this interesting observation of decremental response to PVC in an otherwise nondecremental AP.

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