By Phyllis M. Holt, E. G. Boyd (auth.), Melvin M. Scheinman (eds.)
The box of catheter ablation has grown In a slightly helter-skelter style. Ablative concepts have been utilized in sufferers sooner than uncomplicated bioelectric and mobile electrophysiologic results have been totally outlined. because the creation of this system into medical medication in 1982, fortunately, a wealth of simple info has develop into to be had, and it was once concept prudent to summarize latest information within the type of a textual content. the aim of this article is to supply for a concise precis of either the elemental and scientific stories up to now. It was once easily impossible to incorporate chapters from many employees who've made striking contributions during this sector. For this, I supply my profound apolo gies. I do want, even though, to recognize the phenomenal paintings of Drs. Bharati and Lev who supplied us with a legitimate figuring out of the histolo gic results of assorted strength supply structures. Their seminal observations allowed us to deliver this system to medical fruition.
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These acute lesions 19 Figure 1-15. Section of myocardium from canine ventricle underlying electrode. One shock of 400 joules had been delivered. The myocardial c ell membranes are intact. Some loss of cell nuclei can be seen. showed no signs of rupture of the myocardial cells (figure 1-15). In addition, where electrical impulses have been delivered between two catheter electrodes, equal tissue damage has occurred around the cathodal and anodal electrodes . If the shock wave w ere responsible for the acute effects, the lesion should be greater around the anodal electrode.
Breithardt G, Borggrefe M, Karbenn U, Schwartzmaler J , Rohner D: Catheter ablation of ventricular tachycardia. Eur Heart) 6 (Suppl 1): 19, 1985. 24. Morady f, Scheinman M, Winston S, et al: Efficacy and safety of transcatheter ablation of posteroseptal accessory pathways. Circulation 72 (Sup pi III): III -389 (abstract), 1985. 25. de]a Asuncion MA Guillen L, Almeria C, farinas J, Brandau D, Sanchez Harguindelf L: Low energy endocardial His Bundle ablation method using two intra cardiac electrodes.
Cooper GJ, Pearse BP, Strainer MC, et al: The biomechanical response of the chest wall to impact with particular reference to cardiac injuries. J Trauma 22: 994-1008, 1982. 56. Kadish AH, Spear JF, Prood C, Levine JH, Moore GN: Intercatheter energy delivery for ablation of ventricular myocardium. }ACC 7(2): 237 A, 1986. 57. Brodman R, Fisher JD: Evaluation of a catheter technique for ablation of accessory pathways near the coronary sinus using a canine model. Circulation 67(4): 923-929, 1983. 58.