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Fig. 6 | Journal of Cardiothoracic Surgery

Fig. 6

From: Epicardial infrared ablation to create a linear conduction block on a beating right atrium

Fig. 6

Histopathologic changes in the ablated right atrium. a Histologic examination showed preservation of both the endocardium and epicardium of the coagulated lesion. Both the endocardium and the epicardium were intact. b Severely degenerated myocardium was observed from the epicardial side to the mid-portion of the atrial wall. The endocardial side showed swelling and hyperchromatosis of the nuclei, acidophilic change in the cytoplasm, and deformity of the myocardium. c Myocardium was intact at the endocardial side of the marginal legion

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