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Clinical, Echocardiographic, and Hemodynamic Characteristics of Rheumatic Mitral Valve Stenosis and Atrial Fibrillation

Department of Cardiology, Akdeniz University, Medical Faculty, Antalya, Turkey

Esin Arslantas, MD

Department of Cardiology, Akdeniz University, Medical Faculty, Antalya, Turkey

Ismail Ates, MD

Department of Cardiology, Akdeniz University, Medical Faculty, Antalya, Turkey

Fatih Demircioglu, MD

Department of Cardiology, Akdeniz University, Medical Faculty, Antalya, Turkey

Filiz Ersel, MD

Department of Cardiology, Akdeniz University, Medical Faculty, Antalya, Turkey

Chronic atrial fibrillation (AF) is associated with an increased frequency of embolic events and negative impact on cardiac function, and therefore, an increased morbidity and mortality risk in patients with rheumatic mitral valve stenosis (RMS). In the present study, the clinical, 2-D and Doppler echocardiographic, and left- and right-heart hemodynamic data were evaluated for 92 patients (68 women) with RMS and AF and compared with data from 118 patients (88 women) with RMS with sinus rhythm. The clinical, echocardiographic, and hemodynamic evaluations were performed within 1 to 7 days of each other. Patients with AF were older (45.7 ±13.4 vs 38.6 ±12.0 years, p<0.01) and had a longer symptomatic period (108.2 ±117.9 vs 50.6 ±53.1 months, p<0.01) compared with those with sinus rhythm. Most of the patients with AF were in NYHA functional capacity 3-4 (74% vs 19%), whereas most of the patients with sinus rhythm were in NYHA functional capacity 2. Patients with AF had a higher mitral valve score based on morphologic features ranging from 4 to 16 depending on the severity of disease (8.3 ±2.1 vs 6.5 ±1.9, p<0.01) and greater left ventricular end-diastolic diameter (LVEDD) (52.3 ±8.7 vs 47.7 ±8.7 mm, p<0.02), and end-systolic diameter (LVESD) (34.4 ±7.5 vs 30.9 ±7.5 mm, p<0.01). Organic tricuspid valve involvement was diagnosed more frequently in patients with AF (61% vs 32%, p<0.01). Mild mitral regurgitation was also more frequent in patients with AF (71% vs 51%, p<0.03). The mitral valve area was similar in patients with and without AF (1.30 ±0.39 vs 1.39 ±0.41 cm², p>0.05). Mean diastolic mitral valve gradient and pulmonary artery pressure did not differ in patients with and without AF. Right atrial pressures were higher in patients with AF (7.6 ±3.3 vs 6.3 ±1.9 mm Hg, p<0.02). The authors suggest that (1) AF occurred in older patients, who had a longer disease process and more serious symptoms; (2) hemodynamic derangements (mitral valve gradient, pulmonary artery pressure) did not differ in patients with and without AF; (3) greater mitral valve score, more tricuspid valve involvement, higher LVEDD, which are suggestive of greater rheumatic activity process were more frequently seen in patients with AF than in those without AF. These findings support the opinion that AF is a marker of widespread rheumatic damage in patients with RMS.

Angiology, Vol. 56, No. 2, 159-163 (2005)
DOI: 10.1177/000331970505600206


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