Abstract
A 27-year-old male with congenital long QT syndrome, SCN5A mutation experienced recurrent inappropriate exercise-related implantable cardioverter defibrillator (ICD) shocks. This device showed T-wave oversensing with double, which lead to these device discharges. Dynamic T-wave oversensing was reproducibly provoked at exercise treadmill testing and was confirmed as the mechanism leading to double counting. The insertion of a new pacing and sensing lead with increased R-wave amplitude did not solve the problem. Exchanging the existing ICD generator with one capable of automatic sensitivity control (Biotronik, Lexos DR, Biotronik, Berlin, Germany) completely eliminated T-wave oversensing and inappropriate shocks.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 552-555 |
| Number of pages | 4 |
| Journal | Europace |
| Volume | 10 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1 2008 |
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Keywords
- Inappropriate shocks
- Long QT syndrome
- T-wave oversensing
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)
Cite this
T-wave oversensing and inappropriate shocks : A case report. / Srivathsan, Komandoor; Scott, Luis; Altemose, Gregory T.
In: Europace, Vol. 10, No. 5, 01.05.2008, p. 552-555.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - T-wave oversensing and inappropriate shocks
T2 - A case report
AU - Srivathsan, Komandoor
AU - Scott, Luis
AU - Altemose, Gregory T.
PY - 2008/5/1
Y1 - 2008/5/1
N2 - A 27-year-old male with congenital long QT syndrome, SCN5A mutation experienced recurrent inappropriate exercise-related implantable cardioverter defibrillator (ICD) shocks. This device showed T-wave oversensing with double, which lead to these device discharges. Dynamic T-wave oversensing was reproducibly provoked at exercise treadmill testing and was confirmed as the mechanism leading to double counting. The insertion of a new pacing and sensing lead with increased R-wave amplitude did not solve the problem. Exchanging the existing ICD generator with one capable of automatic sensitivity control (Biotronik, Lexos DR, Biotronik, Berlin, Germany) completely eliminated T-wave oversensing and inappropriate shocks.
AB - A 27-year-old male with congenital long QT syndrome, SCN5A mutation experienced recurrent inappropriate exercise-related implantable cardioverter defibrillator (ICD) shocks. This device showed T-wave oversensing with double, which lead to these device discharges. Dynamic T-wave oversensing was reproducibly provoked at exercise treadmill testing and was confirmed as the mechanism leading to double counting. The insertion of a new pacing and sensing lead with increased R-wave amplitude did not solve the problem. Exchanging the existing ICD generator with one capable of automatic sensitivity control (Biotronik, Lexos DR, Biotronik, Berlin, Germany) completely eliminated T-wave oversensing and inappropriate shocks.
KW - Inappropriate shocks
KW - Long QT syndrome
KW - T-wave oversensing
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U2 - 10.1093/europace/eun083
DO - 10.1093/europace/eun083
M3 - Article
VL - 10
SP - 552
EP - 555
JO - Europace
JF - Europace
SN - 1099-5129
IS - 5
ER -