Title Modifikuotos radiodaţninės labirinto procedūros ir mitralinio voţtuvo ydos korekcijos, atliekamos per tarpprieširdinės pertvaros ir viršutinį pertvaros pjūvius efektyvumo palyginimas gydant prieširdţių virpėjimą /
Translation of Title Comparison of effectiveness the radiofrequency modified maze procedure and mitral valve surgery using transseptal or septal-superior approaches the for the treatment of atrial fibrillation.
Authors Jurkuvėnas, Paulius
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Pages 112
Keywords [eng] atrial fibrillation ; Maze procedure ; radiofrequency ablation
Abstract [eng] The purpose of this scientific work was to evaluate safety and efficacy of treatment of atrial fibrillation using monopolar radiofrequency ablation electrodes in patients who undergo mitral valve surgical correction using incisions of atrial septum (trans-septal and superior septal approaches). More than 80% of the patients are free of atrial fibrillation one year after the operation and 76% of these patients do not use anti-arrhythmic drugs. During the final visit of follow-up it was recorded that 71.5% of the patients remained free of atrial fibrillation and flutter. The maze procedure increases duration of cardiopulmonary by-pas for 16 ± 3 min, only. The baseline and surgical correction data in groups of patients of trans-septal and superior septal approaches did not differ. The method of mitral valve correction (implantation of mitral valve prosthesis or plasty of the valve) had no statistically significant influence on the results of atrial fibrillation treatment. The factors influencing the efficacy of the treatment include higher class of heart failure and larger longitudinal measurement of the left atrium found on echoscopy using M-mode. Combined therapy of secondary atrial tachycardia and atypical atrial flutter (by means of anti-arrhythmic drugs, trans-oesophageal stimulation and per-catheter ablation) enables to improve the results of maze procedure. The superior septal approach should be used in complicated operations as using this incision it is more convenient to inspect the mitral valve and correct mitral valve malformation.
Type Doctoral thesis
Language Lithuanian
Publication date 2010