G. FONTAINE, M.D.; J. L. TONET, M.D.; R. FRANK, M.D.
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To the editor: The excellent recent review by Josephson (1) stresses new approaches in the nonpharmacologic and nonsurgical treatment of cardiac arrhythmias by catheter ablation techniques. However, the reported results are, in our opinion, not consistent because of technical problems that have been overlooked in previous reports.
As indicated by Josephson, most catheters used for these ablation techniques show breaks of insulation due to arcing within the catheter. Shocks given through a catheter that has not been appropriately checked for current and voltage could lead to electrical failure, as indicated by studies done in saline (2). Our impression is that
FONTAINE G, TONET JL, FRANK R. Cardiac Arrhythmias Treated by Catheter Ablation Methods. Ann Intern Med. ;103:803. doi: 10.7326/0003-4819-103-5-803_1
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Published: Ann Intern Med. 1985;103(5):803.
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