PMID- 17369268
OWN - NLM
STAT- MEDLINE
DCOM- 20070807
LR  - 20070418
IS  - 1099-5129 (Print)
IS  - 1099-5129 (Linking)
VI  - 9
IP  - 5
DP  - 2007 May
TI  - Unusual cause for an increase of the sensing integrity counter in a patient with 
      inappropriate implantable cardioverter-defibrillator therapy.
PG  - 275-7
AB  - We describe the case of a patient who presented with multiple implantable 
      cardioverter-defibrillator (ICD) shock discharges 12 months after device 
      implantation. Upon device interrogation, intermittent oversensing of electrical 
      noise and potential ICD lead failure were suggested by a significant increase in 
      the sensing integrity counter (SIC), a cumulative count of very short ventricular 
      sensed intervals. Analysis of stored episodes, however, revealed that 
      inappropriate ICD therapy had been caused by intermittent T-wave oversensing 
      (TWO), and that the increase of the SIC resulted from the coincidence of TWO and 
      premature ventricular complexes (PVCs). T-wave oversensing resolved and the SIC 
      did not increase any more during follow-up after adjustment of ventricular 
      sensitivity. The coincidence of TWO and PVCs should therefore be considered as an 
      uncommon cause for short ventricular sensed intervals in ICD patients presenting 
      with a suspect increase in the SIC.
FAU - Vollmann, Dirk
AU  - Vollmann D
AD  - Abteilung Kardiologie und Pneumologie, Herzzentrum, Klinikum der Georg-August 
      Universitat Gottingen, Robert-Koch-Strasse 40, 37075 Gottingen, Germany. 
      dirkvollmann2000@aol.com
FAU - Luthje, Lars
AU  - Luthje L
FAU - Zabel, Markus
AU  - Zabel M
LA  - eng
PT  - Case Reports
PT  - Journal Article
DEP - 20070316
PL  - England
TA  - Europace
JT  - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal 
      of the working groups on cardiac pacing, arrhythmias, and cardiac cellular 
      electrophysiology of the European Society of Cardiology
JID - 100883649
SB  - IM
MH  - Aged
MH  - Defibrillators, Implantable/*adverse effects
MH  - *Electrocardiography
MH  - Electromyography
MH  - Heart Ventricles/*physiopathology
MH  - Humans
MH  - Male
EDAT- 2007/03/21 09:00
MHDA- 2007/08/08 09:00
CRDT- 2007/03/21 09:00
PHST- 2007/03/21 09:00 [pubmed]
PHST- 2007/08/08 09:00 [medline]
PHST- 2007/03/21 09:00 [entrez]
AID - eum028 [pii]
AID - 10.1093/europace/eum028 [doi]
PST - ppublish
SO  - Europace. 2007 May;9(5):275-7. doi: 10.1093/europace/eum028. Epub 2007 Mar 16.