I recently received my records from my EP Study and NIPS study and I don't quite understand the results. Can anyone explain any of this?
EP Study Findings:
At baseline corrected sinus node recovery time was 230 msec, antegrade Wenckebach was 240 msec, antegrade ERP of AV node at 600 msec drive train 220 msec, A-H interval 98 msec, H-V interval 50 msec. No evidence of dual A-V nodal physiology. No evidence of antegrade or retrograde conduction using an accessory pathway.
Programmed stimulation performed in the right ventricle at the apex and outflow tract using drive trains at 600 and 400 msec showed no inducible VT with up to 3 extrastimuli at the shortest coupling interval of 190 msec. Burst pacing at both sites failed to induce any ventricular tachycardia. Two micrograms of isoropterenol per minute was given and programmed stimulation again repeated without any inducible VT
Comment:
No inducible VT. No SVT. No abnormal conduction. The patient had syncope with HCM and rapid heart rate.
NIPS Study Findings:
The patient was given conscious sedation with Versed and also given etomidate up to 10 mg intravenously. He underwent induction of VT of T-wave shock which failed at 12 joules, failed again at 22 joules. He had to be externally cardioverted. There was no evidence of T-wave oversensing at this point with sensitivity set at .45 mV in the ventricular chamber.
The patient then had a re-induction of ventricular fibrillation and was converted at 20 joules without any drop-out of signal between termination of tachycardia
Did I "jump the gun" in allowing my cardiologist to implant an ICD?... I will present these questions to my EP when I see him but that is not scheduled for a couple of months...any information0n in the mean-time would be helpful.
EP Study Findings:
At baseline corrected sinus node recovery time was 230 msec, antegrade Wenckebach was 240 msec, antegrade ERP of AV node at 600 msec drive train 220 msec, A-H interval 98 msec, H-V interval 50 msec. No evidence of dual A-V nodal physiology. No evidence of antegrade or retrograde conduction using an accessory pathway.
Programmed stimulation performed in the right ventricle at the apex and outflow tract using drive trains at 600 and 400 msec showed no inducible VT with up to 3 extrastimuli at the shortest coupling interval of 190 msec. Burst pacing at both sites failed to induce any ventricular tachycardia. Two micrograms of isoropterenol per minute was given and programmed stimulation again repeated without any inducible VT
Comment:
No inducible VT. No SVT. No abnormal conduction. The patient had syncope with HCM and rapid heart rate.
NIPS Study Findings:
The patient was given conscious sedation with Versed and also given etomidate up to 10 mg intravenously. He underwent induction of VT of T-wave shock which failed at 12 joules, failed again at 22 joules. He had to be externally cardioverted. There was no evidence of T-wave oversensing at this point with sensitivity set at .45 mV in the ventricular chamber.
The patient then had a re-induction of ventricular fibrillation and was converted at 20 joules without any drop-out of signal between termination of tachycardia
Did I "jump the gun" in allowing my cardiologist to implant an ICD?... I will present these questions to my EP when I see him but that is not scheduled for a couple of months...any information0n in the mean-time would be helpful.
Comment