Browsing by Subject "radiofrequency ablation"
Now showing items 1-10 of 10
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Acute and chronic effects of extensive radiofrequency lesions in the canine caval veins: Implications for ablation of atrial arrhythmias
(Blackwell Publishing, 2006-12-01)Background: Although radiofrequency (RF) ablation within the caval veins has been increasingly used to treat a variety of atrial tachyarrhythmias, the consequences of RF ablation in the caval veins are unknown. We explored ...
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Analysis by MRI of Residual Tumor After Radiofrequency Ablation for Early Stage Breast Cancer
(Amer Roentgen Ray Soc, 2012-03-01)OBJECTIVE. the objective of our study was to evaluate the effectiveness of MRI in the detection of possible residual lesions after radiofrequency ablation (RFA) in the treatment of breast cancer.SUBJECTS and METHODS. We ...
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Angiographic and electrophysiological substrates for ventricular tachycardia mapping through the coronary veins
(British Med Journal Publ Group, 1998-01-01)Objective-To study the value of epicardial mapping through the coronary venous system in patients with sustained ventricular tachycardia.Design-20 consecutive patients with sustained ventricular tachycardia who were ...
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Combined therapy with steroids and antioxidants prevents ultrastructural damage surrounding chronic radiofrequency lesions
(Blackwell Futura Publishing, Inc, 2004-01-01)We evaluated the effects of combined therapy with anti-inflammatory and antioxidant drugs on the healing of radiofrequency (RF) lesions (70degreesC, 60 s) produced in the right atrium and each ventricle of 21 adult dogs. ...
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Effects of corticosteroid therapy on the long-term outcome of radiofrequency lesions in the swine caval veins
(Blackwell Publishing, 2008-08-01)Background: We explored the angiographic and pathological effects of corticosteroids on the long-term outcome of radiofrequency (RF) ablation lesions in the swine caval veins.Methods: Under fluoroscopy guidance, a single ...
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Epicardial radiofrequency ablation of ventricular myocardium: Factors affecting lesion formation and damage to adjacent structures
(Springer, 2006-01-01)We evaluated the factors affecting epicardial radiofrequency (RF) lesion formation in normal ventricular myocardium. in 16 dogs, a minithoracotomy was made and a sheath was placed in the pericardial space. Standard ablation ...
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Increased NHE3 abundance and transport activity in renal proximal tubule of rats with heart failure
(Amer Physiological Soc, 2012-01-01)Inoue BH, dos Santos L, Pessoa TD, Antonio EL, Pacheco BPM, Savignano FA, Carraro-Lacroix LR, Tucci PJF, Malnic G, Girardi ACC. Increased NHE3 abundance and transport activity in renal proximal tubule of rats with heart ...
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Left Ventricle Radio-frequency Ablation in the Rat: A New Model of Heart Failure due to Myocardial Infarction Homogeneous in Size and Low in Mortality
(Churchill Livingstone Inc Medical Publishers, 2009-08-01)Background: the purpose of the Current study was to create a model of myocardial infarction (MI) that is homogeneous in size with a low immediate (24 hours) mortality.Methods and Results: Male and female rats (n = 256) ...
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Nonsurgical transthoracic epicardial ablation for the treatment of a resistant posteroseptal accessory pathway
(Blackwell Futura Publishing, Inc, 2004-02-01)A case of Wolff-Parkinson-White syndrome successfully treated by transcutaneous epicardial radiofrequency ablation is described in a patient with a posteroseptal accessory pathway who had failed prior attempts of conventional ...
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Steroids prevent late extension of radiofrequency lesions in the thigh muscle of infant rats: implications for pediatric ablation
(Kluwer Academic Publ, 2003-08-01)Introduction: Marked late enlargement of radiofrequency (RF) lesions may occur in immature myocardium, suggesting that late proarrhythmic effects may occur in infants and small children undergoing RF ablation. Because late ...
