T-wave oversensing and inappropriate shocks: A case report

Komandoor Srivathsan; Luis R. Scott; Gregory T. Altemose

doi:10.1093/europace/eun083

T-wave oversensing and inappropriate shocks: A case report

Komandoor Srivathsan, Luis R. Scott, Gregory T. Altemose

Cardiovascular Diseases

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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	https://doi.org/10.1093/europace/eun083
State	Published - May 2008

Keywords

Inappropriate shocks
Long QT syndrome
T-wave oversensing

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine
Physiology (medical)

Access to Document

10.1093/europace/eun083

Cite this

@article{9de55f1ff0ae4be787ab9da0410fa82b,

title = "T-wave oversensing and inappropriate shocks: A case report",

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.",

keywords = "Inappropriate shocks, Long QT syndrome, T-wave oversensing",

author = "Komandoor Srivathsan and Scott, {Luis R.} and Altemose, {Gregory T.}",

year = "2008",

month = may,

doi = "10.1093/europace/eun083",

language = "English (US)",

volume = "10",

pages = "552--555",

journal = "Europace",

issn = "1099-5129",

publisher = "Oxford University Press",

number = "5",

}

TY - JOUR

T1 - T-wave oversensing and inappropriate shocks

T2 - A case report

AU - Srivathsan, Komandoor

AU - Scott, Luis R.

AU - Altemose, Gregory T.

PY - 2008/5

Y1 - 2008/5

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

UR - http://www.scopus.com/inward/record.url?scp=44349172248&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44349172248&partnerID=8YFLogxK

U2 - 10.1093/europace/eun083

DO - 10.1093/europace/eun083

M3 - Article

C2 - 18442965

AN - SCOPUS:44349172248

SN - 1099-5129

VL - 10

SP - 552

EP - 555

JO - Europace

JF - Europace

IS - 5

ER -

T-wave oversensing and inappropriate shocks: A case report

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this