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  • Title: [Ventricular arrhythmias in mitral valve disease: incidence, severity and relations to hemodynamic parameters].
    Author: von Olshausen K, Treese N, Schwarz F, Kübler W, Meyer J.
    Journal: Z Kardiol; 1986 Apr; 75(4):196-201. PubMed ID: 3727658.
    Abstract:
    The incidence and severity of ventricular arrhythmias was analyzed in 42 patients with pure or predominant mitral valve stenosis (age: 51 +/- 9 years; NYHA class: 2.7 +/- 0.5) and 23 patients with pure or predominant mitral valve regurgitation (age: 55 +/- 11 years; NYHA class: 2.7 +/- 0.6) employing 24 h ambulatory monitoring. Coronary artery disease was excluded by angiography in all patients. Ten patients (14%) had no ventricular premature beats (VPB), 5 patients (7%) greater than 1,000 VPB/24 h, 31 patients (44%) multiform VPB, 19 patients (27%) repetitive VPB and 7 patients (10%) ventricular tachycardia. There was no difference in VPB between patients with mitral valve stenosis and mitral valve regurgitation. The incidence and severity of ventricular arrhythmias was significantly higher (p less than 0.001) in patients with mitral valve disease compared to the VPB of 50 normals without identifiable heart disease. This was still valid, if only patients with normal left ventricular ejection fraction greater than 55% (n = 60) were compared (p less than 0.01). The occurrence of frequent and complex ventricular arrhythmias was not determined by age, NYHA class, pulmonary artery pressure, pulmonary artery resistance, size of the left atrium, mitral valve area, degree of mitral regurgitation or cardiac index. However, a significant inverse correlation was found between incidence and severity of VPB and left ventricular ejection fraction. A reduced right ventricular ejection fraction, on the other hand, barely affected the occurrence of complex ventricular arrhythmias. Thus frequent and complex ventricular arrhythmias may be a sign of reduced left ventricular function in patients with mitral valve disease.
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