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Arch Mal Coeur Vaiss. 1994 Apr;87(4):439-44.

[Pre- and postoperative ventricular arrhythmia in mitral valve insufficiency].

[Article in French]

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Service de cardiologie, hôpital Louis-Pradel, Lyon.


In order to assess the prevalence and prognosis of ventricular arrhythmias in patients with surgical mitral regurgitation, a prospective cooperative study was undertaken in 14 French cardiological centres. Seventy-nine patients (45 men, 34 women, average age 62.8 +/- 12.8 years), who underwent mitral valvuloplasty (44 cases) or valve replacement (35 cases), were included. Three 24 hour Holter recordings were performed before, 15 days and 6 months after surgery. Etiology of mitral disease was dystrophic in 49 patients, degenerative in 11, rheumatic in 10, post-endocarditis in 3 and undetermined in 6. Only 5 patients had a left ventricular ejection fraction < or = 45 %. Complex ventricular arrhythmias (Lown > or = 4) were recorded before surgery in 22 patients (28 %), more often in dystrophic disease (17/49 versus 5/30, p = 0.04). No significant correlation was observed between the ventricular arrhythmias and the other preoperative findings, except for a tendency to an inverse correlation between the left ventricular ejection fraction and the Lown grade. Two patients died in the immediate postoperative period (Lown 1); 1 died of a non-cardiac cause at the 2nd month (Lown 4A). The prevalence of complex arrhythmias was unchanged after surgery (34 % on early Holter and 22% on late Holter recordings) with no difference between valvuloplasty and valve replacement. In conclusion, these results indicate that ventricular arrhythmias do not influence the early and 6 month postoperative prognosis in mitral regurgitation with good left ventricular function.

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