Upgrade from ICD to CRT-D: clinical and
haemodynamic impact of biventricular pacing in a
patient with acquired long QT syndrome

• Authors: Damian Kawecki , Janusz Dola , Wojciech Jacheć , Celina Wojciechowska , Stanisław Morawski , Andrzej Tomasik , Ewa Nowalany-Kozielska
• Languages of publication: EN

Abstracts

EN

Long QT syndrome (LQTS) is characterised by
both the depolarisation and repolarisation disorder of
cardiac muscle cells. Cardiac resynchronising therapy
(CRT) is an important treatment option for patients with
chronic heart failure (CHF) when echocardiographic and
electrocardiographic criteria are met. Although CRT was
introduced in clinical practice 10 years ago, doubts related
to application of this treatment method persist because
of its potential proarrhythmogenic effect. This is a case
describing a 66-year-old Caucasian female with LQTS
coexisting with a left bundle branch branch block (LBBB)
and an implantable single-cavity cardioverter-defibrillator
(ICD VR), who had repeated appropriate high-energy
treatments. The upgrade to resynchronisation therapy
defibrillator (CRT-D) significantly reduced frequency of
ventricular tachycardia and the need for electrical therapies.
The normalisation of the left ventricle size, as seen
on echo examination, and the improvement of heart
failure symptoms were also observed.

Keywords

EN

long QT syndrome (LQTS); cardiac resynchronisingtherapy (CRT); resynchronisation therapy defibrillator(CRT-D); implantable cardioverter-defibrillator (ICD); polymorphic ventricular tachycardia; Torsade de Pointes(TdP); heart failure (HF)

• Publisher: De Gruyter Open
• Journal: Open Medicine
• Year: 2014
• Volume: 10
• Issue: 1

Dates

accepted

11 - 12 - 2014

online

15 - 1 - 2015

received

23 - 5 - 2014

Contributors

author

Damian Kawecki

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

author

Janusz Dola

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

author

Wojciech Jacheć

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

author

Celina Wojciechowska

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

author

Stanisław Morawski

• Faculty of Medicine, Medical University of
  Silesia in Katowice, 18 Medyków Street, 40-752 Katowice, Poland

author

Andrzej Tomasik

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

author

Ewa Nowalany-Kozielska

• 2nd Department of Cardiology
  in Zabrze, Medical University of Silesia in Katowice, Sklodowskiej-
  Curie 10 Street, 41-800 Zabrze, Poland

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Identifiers

DOI

10.1515/med-2015-0023