Cited by 708Cardiac electrophysiology and arrhythmiasCardiovascular Effects of ExerciseCardiac Arrhythmias and Treatments

Short QT Syndrome: A Familial Cause of Sudden Death

Gaita, Fiorenzo, Giustetto, Carla, Bianchi, Francesca, Wolpert, Christian, Schimpf, Rainer, Riccardi, Riccardo, Grossi, Stefano, Richiardi, Elena +1 more·2003·Circulation

Abstract

Background— A prolonged QT interval is associated with a risk for life-threatening events. However, little is known about prognostic implications of the reverse—a short QT interval. Several members of 2 different families were referred for syncope, palpitations, and resuscitated cardiac arrest in the presence of a positive family history for sudden cardiac death. Autopsy did not reveal any structural heart disease. All patients had a constantly and uniformly short QT interval at ECG. Methods and Results— Six patients from both families were submitted to extensive noninvasive and invasive work-up, including serial resting ECGs, echocardiogram, cardiac MRI, exercise testing, Holter ECG, and signal-averaged ECG. Four of 6 patients underwent electrophysiological evaluation including programmed ventricular stimulation. In all subjects, a structural heart disease was excluded. At baseline ECG, all patients exhibited a QT interval ≤280 ms (QTc ≤300 ms). During electrophysiological study, short atrial and ventricular refractory periods were documented in all and increased ventricular vulnerability to fibrillation in 3 of 4 patients. Conclusions— The short QT syndrome is characterized by familial sudden death, short refractory periods, and inducible ventricular fibrillation. It is important to recognize this ECG pattern because it is related to a high risk of sudden death in young, otherwise healthy subjects.

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Crossref · 10.1161/01.cir.0000085071.28695.c4

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Authors
Gaita, F., Giustetto, C., Bianchi, F., Wolpert, C., Schimpf, R., Riccardi, R., Grossi, S., Richiardi, E., & Borggrefe, M.
Affiliations
  • From the Division of Cardiology (F.G., C.G., F.B., R.R., S.G., E.R.), Ospedale Mauriziano Umberto I, Torino, Italy; and the 1st Department of Medicine (C.W., R.S., M.B.), University Hospital Mannheim, University of Heidelberg, Mannheim, Germany.
  • Heidelberg University (DE)
Venue
Circulation
Published
2003-08-26
Volume
108
Issue
8
Pages
965-970
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W1967867484
Cited by
708
References
21
Citations by year
2026: 8 · 2025: 12 · 2024: 17 · 2023: 10 · 2022: 14 · 2021: 20 · 2020: 20 · 2019: 15 · 2018: 18 · 2017: 33 · 2016: 25 · 2015: 27 · 2014: 27 · 2013: 49 · 2012: 44
FWCI
30.09
Type
journal article
Language
en
Open access
closed
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
Keywords
short QT syndrome, short QT interval, sudden cardiac death, familial sudden death, ventricular refractory period, ventricular fibrillation, syncope, palpitations, cardiac arrest, programmed ventricular stimulation, ventricular vulnerability
MeSH terms
Adolescent, Adult, Aged, Arrhythmias, Cardiac, Atrial Fibrillation, Child, Electrocardiography, Exercise Test, Cardiac Complexes, Premature, Female, Flecainide, Heart Arrest, Humans, Male, Pedigree, Syncope, Syndrome, Sodium Channels, Electrocardiography, Ambulatory, Death, Sudden, Cardiac, Electrophysiologic Techniques, Cardiac

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