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Rheumatology 2000; 39: 1320-1325
© 2000 British Society for Rheumatology

Raised pulmonary artery pressures measured with Doppler echocardiography in rheumatoid arthritis patients

J. K. Dawson, N. G. Goodson, D. R. Graham1 and M. P. Lynch

Departments of Rheumatology and
1 Respiratory Medicine, St Helens and Knowsley Hospitals NHS Trust, Merseyside, UK

Objective. To study the prevalence of echocardiographic abnormality and pulmonary hypertension in an unselected population of patients with rheumatoid arthritis (RA).

Method. One hundred and forty-six RA patients, irrespective of cardiopulmonary symptoms, were assessed clinically and by echocardiography, including pulmonary artery pressure measurement, ECG, pulmonary function tests and high-resolution computed tomography scanning of the thorax.

Results. Two-dimensional echocardiography demonstrated significant cardiac disease in the form of reduced left ventricular ejection fraction (<64%) in 9% of patients, moderate mitral regurgitation in 4%, aortic stenosis in 4%, aortic regurgitation in 3% and Valsalva sinus rupture in 0.7%. In addition, 1% had detectable pericardial effusions. Thirty-one per cent of the RA patients had an estimated pulmonary artery systolic pressure of 30 mmHg or more, and 21% of all the RA patients had pulmonary hypertension without significant cardiac disease or lung disease evident on pulmonary function testing.

Conclusions. A wide and frequent variety of echocardiographic cardiac abnormalities may be found in an unselected population of patients with RA. Using Doppler echocardiography, we have found pulmonary hypertension secondary to lung disease in 6% of the population and a larger than expected prevalence of mild primary pulmonary hypertension in patients with RA. The latter observation may be relevant to the high incidence of cardiovascular-related deaths observed in patients with RA

KEY WORDS: Rheumatoid arthritis, Doppler echocardiography, Pulmonary artery, Systolic pressure.

Correspondence to: J. K. Dawson, Department of Rheumatology, St Helens Hospital, Marshalls Cross Lane, St Helens, Merseyside WA9 3DA, UK.


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