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Related Experiment Videos

Midterm results after the Mini-Maze procedure.

Z A Szalay1, W Skwara, H F Pitschner

  • 1Division of Cardiothoracic Surgery, Kerckhoff Clinic of the Max-Planck-Institute, Bad Nauheim, Germany. zoltan.a.szalay@kerckhoff.med.uni-giessen.de

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|November 11, 1999
PubMed
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The MINI-variant of the Maze III procedure offers midterm results identical to the traditional Maze III for atrial fibrillation. This less complex MINI procedure reduces operation times, making it ideal for polymorbid patients.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Electrophysiology

Background:

  • Atrial fibrillation (AF) is a common arrhythmia with incompletely understood mechanisms.
  • The Maze III (M III) procedure effectively treats chronic, symptomatic AF resistant to medical therapy.
  • Alternative surgical techniques are being explored to improve upon the M III procedure.

Purpose of the Study:

  • To describe the technique and evaluate the midterm results of a Mini-variant of the Maze III (M III) procedure.
  • To compare the outcomes of the MINI procedure with the standard M III procedure for treating chronic symptomatic AF.

Main Methods:

  • A comparative study involving 52 patients with chronic symptomatic AF and additional cardiac pathology.
  • Patients underwent either the standard M III procedure (7 patients) or the MINI procedure (45 patients).

Related Experiment Videos

  • Follow-up included electrophysiological assessment, cardiac catheterization, MRI, echocardiography, stress-EGG, and 24-h-ECG at 3.6 and 14.9 months post-operation.

    • Main Results:

    • No significant differences in sex, age, or duration of AF between groups.
    • The MINI procedure showed significantly shorter aortic cross-clamp (87 vs. 127 min) and cardiopulmonary bypass times (137 vs. 185 min).
    • Midterm follow-up revealed no differences in sinus rhythm, sinus node recovery time, pacemaker use, inducible AF, or atrial size reduction.

    Conclusions:

    • The MINI procedure yields midterm results comparable to the standard M III procedure for atrial fibrillation.
    • The MINI approach is less complex and associated with significantly reduced operative times.
    • The MINI procedure is recommended for polymorbid patients and those with impaired left ventricular function.