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Predictors for atrial transport function after mini-maze operation.

E P Bauer·Z A Szalay·R R Brandt·H F Pitschner·G Bachmann·H P Brunner-La Rocca·W P Klövekorn
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Abstract

BACKGROUND: Restoration of atrial transport function (ATF) is a major goal of the maze procedure. This prospective study was undertaken to evaluate predictors of left atrial transport function in patients undergoing a mini-variant of the maze III procedure 3 and 12 months postoperatively. METHODS: Mini-maze operation was performed in 72 patients with a mean age of 64 +/- 8.7 years during a 5-year period. Seventy of 72 (97%) had combined procedures. Clinical and electrophysiologic examination was carried out before surgery, and 3 and 12 months postoperatively. RESULTS: Early mortality was 1.4% (1 of 72 patients) and late death occurred in 5.6% (4 of 71 patients). After 3 months, 54 of 68 (80%) patients showed sinus rhythm, and 48 of 60 (80%) after 12 months. ATF was restored in 87% (echocardiography) and 82% (magnetic resonance imaging) after 3 months, and in 86% (echocardiography) and 78% (magnetic resonance imaging) after 12 months. Independent predictors for ATF restoration after 12 months were better preoperative left ventricular function (p = 0.02), and smaller preoperative left atrial diameter (p = 0.005). Correlation between echocardiography and magnetic resonance imaging was 80% after 12 months. CONCLUSIONS: Restoration of ATF after mini-maze procedure is achieved in over 80%. Independent predictors for ATF restoration are smaller preoperative left atrial diameter and better preoperative left ventricular ejection fraction.

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AdultAgedAtrial FibrillationAtrial Function, LeftEchocardiographyFemaleFollow-Up StudiesHospital MortalityHumansMagnetic Resonance ImagingMaleMiddle AgedMinimally Invasive Surgical ProceduresPostoperative ComplicationsSurvival RateJournal Article

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BibTeXRIS

E P Bauer, Z A Szalay, R R Brandt, H F Pitschner, G Bachmann, H P Brunner-La Rocca, W P Klövekorn. 2001. Predictors for atrial transport function after mini-maze operation.. https://doi.org/10.1016/s0003-4975(01)02977-0

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