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2012 | 56 | 2 |

Tytuł artykułu

QTc dispersion and T-wave alternans as predictors of mortality in dogs with dilated cardiomyopathy and ventricular tachycardia in holter monitoring. A retrospective study

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The study presents a comparison of the results received from dogs with dilated cardiomyopathy (DCM) that died during the first 30 d of observation and from dogs with DCM that survived the first 30 d after the ECG. No differences were noted in the duration of QT or QTc in healthy dogs and dogs with DCM. QTcd was significantly higher in dogs with DCM and in dogs with DCM, which did not survive over 30 d of observation and dogs with DCM that died after the 30th d of observation. The presence of T-wave alternans (TWA) was more frequently observed in dogs with DCM (85% of the dogs) that died in less than 30 d during the observation. QTcd and TWA seem to be a useful non-invasive diagnostic tool to anticipate the risk of cardiac death in dogs with DCM.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

56

Numer

2

Opis fizyczny

p.189-192,fig.,ref.

Twórcy

  • Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Faculty of Veterinary Medicine, University of Environmental and Life Science, 50-366 Wroclaw, Poland

Bibliografia

  • 1. Antzelevitch C., Oliva A.: Amplification of spatial dispersion of repolarization underlines, sudden cardiac death associated with catecholaminergic polimorphic VT, long QT, short QT and Brugada syndromes. J Intern Med 2006, 259, 48-58.
  • 2. Borgarelli M., Tarducci A., Tidolm A., Häggström J.: Canine idiopathic dilated cardiomyopathy. Part II: Pathophysiology and therapy. Vet J 2001, 162, 182-195.
  • 3. Dennis S.G., Summerfield N.J., Boswood A.: Investigation of QT-interval dispersion in the electrocardiogram of 81 dogs. Vet Rec 2002, 151, 77-82.
  • 4. Freeman L.M., Rush J.E., Farabaugh A.E., Must A.: Development and evaluation of a questionnaire for assessing health-related quality of life in dogs with cardiac disease. J Am Vet Med Assoc 2005, 226, 1864- 1868.
  • 5. Killeen M.J., Sabir I.N., Grace A.A., Huang Ch.L.-H.: Dispersion of repolarization and ventricular arrhythmogenesis: Lessons from animal model. Prog Biophvs Mol Biol 2008, 98, 219-229.
  • 6. Kwofie M.A., Chaudhary A.K., Martins J.B.: Association among intracardiac T-wave alternans, ischemia, and spontaneous ventricular arrhythmias after coronan artery occlusion in canine model. Transl Res 2011, 158, 265-212.
  • 7. Nearing B.D., Oesterle S.N., Verrier R.L.: Quantification of ischaemia induced vulnerability by precordial T wave alternans analysis in dog and human. Cardiovasc Res 1994, 28, 1440-1449.
  • 8. Pak P.H., Nuss H.B., Tunin R.S., Kaa B.S., Tomaselli G.F., Marban E., Kass D.A.: Repolarization abnormalities, arrhythmia and sudden cardiac death in canine tachycardia-induced cardiomyopathy. J Am Coll Cardiol 1997, 30, 576-584.
  • 9. Pasławska U., Kalitan M., Nicpoń J., Wojtaszek J.: Analysis of corrected QT and dispersion of QTc in dogs suffering from cardiac insufficiency. Medycyna Wet 2005, 62, 907-910.
  • 10. Sakabe K., Ikeda T., Sakata T., Kawase A., Kumagai K., Tezuka N., Takami M., Nakae T., Noro M., Enjoji Y., Sugi K., Yamaguchi T.: Comparison of T-wave alternans and QT interval dispersion to predict ventricular tachyarrhythmia in patients with dilated cardiomyopathy and without antiarrhythmic drugs: a prospective study. Jpri Heart J 2001, 42, 451-457.
  • 11. Spier A.W., Meurs K.M., Muir W.W., Lehmkuhl L.B., Hamlin R.L.: Correlation of QT dispersion with indices used to evaluate the severity of familial ventricular arrhythmias in Boxers. Am J Vet Res 2001, 62, 1481- 1485.
  • 12. Tidolm A., Häggström J., Borgarelli M., Tarducci A.: Canine idiopathic dilated cardiomyopathy. Part I. Aetiology, clinical characteristic, epidemiology and pathology. Vet J 2001, 162, 92-107.
  • 13. Tsai J., Cao J.M., Zhou S., Swissa M., Cates A.W., Kenknight B.H., Chen L.S., Karaguezian H.S., Chen P.S.: T wave alternans as a predictor of spontaneous ventricular tachycardia in a canine model of sudden cardiac death. J Cardiovasc Electrophysiol 2002, 13, 51- 55.
  • 14. Verrier R.L., Nearing B.D.: Electrophysiologic basis for T-wave alternans as an index of vulnerability to ventricular fibrillation. J Cardiovasc Electrophysiol 1994, 5, 445-461.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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