[Maze operation for chronic atrial fibrillation with valvular heart diseases].
Between July 1994 and August 1995, 14 patients underwent combined modified maze procedure and valvular surgery including 5 patients having reoperation. Associated procedures were performed with mitral valve operation (n = 13), tricuspid annuloplasty or valve replacement (n = 9) and aortic valve replacement (n = 4). Duration of atrial fibrillation (AF) varied from 1 to 18 years (mean 8.0 +/- 5.8 year), the f-wave voltage ranged from 0.05 to 0.5 mV (0.21 +/- 0.13 mV), left atrial dimension (LAD) ranged from 35.6 to 66.3 mm (49.0 +/- 9.3). One patient died 2 months after undergoing combined maze procedure and MVR + TAP due to pulmonary infection and sepsis, but the other 13 patients survived. Nine patients (69%) regained atrial rhythm, two patients (15%) had junctional rhythm and another two (15%) remained in AF at follow-up periods between 1 to 11.5 months (6.3 +/- 3.1). The nine patients who recovered to normal sinus rhythm had preoperative f-wave for a significant higher voltage than the patients with AF and JR (0.27 +/- 0.12 vs 0.13 +/- 0.05 mV, p < 0.05) and a smaller left atrial dimension (44.5 +/- 0.7 vs 54.8 +/- 6.9 mm, p < 0.05). These data suggest that the maze operation is effective and should be considered for patients with chronic AF indicated for surgical valvular diseases.
Abe
T
T
Department of Cardio-Thoracic Surgery, Sapporo Medical University, School of Medicine, Japan.
Kukawi
K
K
Mawatari
T
T
Sakata
J
J
Komatsu
K
K
Urita
R
R
Komatsu
S
S
D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology / Q000601:surgery*; D006348:Cardiac Surgical Procedures / Q000379:methods; D002908:Chronic Disease; D005260:Female; D006349:Heart Valve Diseases / Q000150:complications* / Q000601:surgery; D006351:Heart Valves / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged