Rate: 60 bpm Regularity: regular P-waves: Present, A-paced @ 60 bpm PRi: ~300ms, 1:1 association QRSd: 140-160ms LBBB appearance (although not 100% typical, but given the extensive cardiac Hx this may be the patient's normal intraventricular conduction pattern)
Axis: 0 degrees QTi/QTc: normal ST/T-waves: appropriately discordant, however, ST-depression in II and V4/V5 are present that may be abnormal. Otherwise nothing acutely concerning.
Rhythm: atrial paced rhythm with 1AVB
DDx: Very interested in the lack of V-pacing at ~200ms from the A-pace. Perhaps programmed to accept a longer delay provided the detected V-rate >60bpm. No evidence of buried V-pacing or F-waves, which supports an original diagnosis of VT.
Rate: 60 bpm
ReplyDeleteRegularity: regular
P-waves: Present, A-paced @ 60 bpm
PRi: ~300ms, 1:1 association
QRSd: 140-160ms LBBB appearance (although not 100% typical, but given the extensive cardiac Hx this may be the patient's normal intraventricular conduction pattern)
Axis: 0 degrees
QTi/QTc: normal
ST/T-waves: appropriately discordant, however, ST-depression in II and V4/V5 are present that may be abnormal. Otherwise nothing acutely concerning.
Rhythm: atrial paced rhythm with 1AVB
DDx: Very interested in the lack of V-pacing at ~200ms from the A-pace. Perhaps programmed to accept a longer delay provided the detected V-rate >60bpm. No evidence of buried V-pacing or F-waves, which supports an original diagnosis of VT.