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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access April 9, 2010

Effect of electrical cardioversion on stented coronary artery

  • Mohammad Sharifkazemi EMAIL logo , Akbar Safai , Amir Aslani , Seifollah Dehghan , Ali Rezakhani and Gholam Rezaian
From the journal Open Medicine


Direct current cardioversion, which produces electrical energy, is highly effective for the termination of cardiac arrhythmia and sometimes is indicated in patients with coronary artery stents due to arrhythmias. Only a few reports have been published describing the potential adverse interactions between foreign bodies and electrical cardioversion. The aim of this animal study was to investigate the acute effect of repeated external defibrillation on coronary artery tissue and adjacent myocardium at the implantation site of coronary stents. Custom-made stainless steel stents were implanted in the coronary arteries of 7 dogs. Rapid ventricular pacing was performed to induce ventricular fibrillation. Defibrillation was achieved [5 J/kg; n=2 and 8 J/kg; n=3]. In 2 animals, coronary stent was implanted but defibrillation was not performed [control group]. The animal’s heart were excised and sent for microscopic examination. The light and electron micrographs of heart muscles showed no histological and ultrastructural changes in defibrillated and control dogs. It is concluded that nickel coating provides good resistance to heat in coronary stents and repeated defibrillation does not cause histopathological changes typical of thermal injury at the implantation site of coronary stent.

[1] Veenhuyzen. Cost advantage of different cardioverter-defibrillator devices. J Am Coll Cardiol 2006; 48: 418–419 in Google Scholar PubMed

[2] Varriale P, Leonardi M. Polymorphic ventricular tachycardia in the coronary care unit. Heart Lung 2006; 35: 283–289 in Google Scholar PubMed

[3] Krasteva VT, Kerkhof PL. On the optimal defibrillation waveform-how to reconcile theory and experiment? IEEE Trans Biomed Eng 2006; 53:1725–1726 in Google Scholar PubMed

[4] Divekar A, Soni R. Successful parental use of an automated external defibrillator for an infant with long-QT syndrome. Pediatrics 2006; 118: 526–529 in Google Scholar PubMed

[5] Waller C, Callies F, Langenfeld H. Adverse effects of direct current cardioversion on cardiac pacemakers and electrodes. Is external cardioversion contraindicated in patients with permanent pacing systems? Europace 2004; 6:165–168 in Google Scholar PubMed

[6] Altamura G, Bianconi L, Lo Bianco F, Toscano S, Ammirati F, Pandozi C, Castro A, Cardinale M, Mennuni M, Santini M. Transthoracic DC shock may represent a serious hazard in pacemaker dependent patients. Pacing Clin Electrophysiol 1995; 8:194–198 in Google Scholar PubMed

[7] Karlsen FM, Petersen L. Pacemaker failure in elective DC cardioversion of atrial tachycardia. Ugeskr Laeger 1999; 161: 436–438 Search in Google Scholar

[8] Kolbitsch C, Eisner W, Kleinsasser A, Biebl M, Fiegele T, Lockinger A, Lorenz IH, Mikutz G, Moser PL. External cardiac defibrillation does not cause acute histopathological changes typical of thermal injuries in pigs with in situ cerebral stimulation electrodes. Anesth Analg 2004; 98: 458–460 in Google Scholar PubMed

[9] Caffarelli AD, Banovac F, Cheung SC, Fleischmann D, Mitchell RS. Unusual case of late thoracic stent graft failure after cardioversion. Ann Thorac Surg 2006; 81: 1875–1877 in Google Scholar PubMed

Published Online: 2010-4-9
Published in Print: 2010-6-1

© 2010 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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