Pericardial Effusion Andmitral Valve Involvement in Systemic Lupus
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Ann Rheum Dis: first published as 10.1136/ard.36.4.349 on 1 August 1977. Downloaded from Annals of the Rheumatic Diseases, 1977, 36, 349-353 Pericardial effusion and mitral valve involvement in systemic lupus erythematosus Echocardiographic study URI ELKAYAM, SHMUEL WEISS, AND SHLOMO LANIADO From the Gradel Heart Department, and the Department of Rheumatology and Rehabilitation, Municipal Governmental Medical Center, Ichilov Hospital, and Sackler School ofMedicine, Tel-Aviv University, Tel-Aviv, Israel SUMMARY Echocardiography was used in 30 women and 2 men with systemic lupus erythematosus (SLE) in order to determine the incidence and severity of pericardial effusion and mitral valve involvement. 31 patients showed normal thickness of the mitral valve leaflets, only one patient showed irregular thickening of the leaflets suggesting the presence of vegetations. Mitral valve motions were normal in all patients. These results indicate that myocardial and valvular involvement in SLE is usually not severe enough to result in haemodynamic abnormalities. Pericardial effusion was found in 2 patients who were symptom free, whereas 4 of the patients with a past history suggestive of pericarditis showed no echocardiographic evidence of pericardial effusion. These copyright. suggest the transient nature of pericarditis in SLE, and the value ofechocardiography as a diagnostic tool in detecting clinically inapparent lupus pericarditis. Since Libman and Sachs (1924) first described cardiac detecting pericardial effusion (Feigenbaum, 1970; involvement in systemic lupus erythematosus (SLE), Horowitz et al., 1974) and assessing abnormalities many clinical and pathological studies have shown in movement and form of the mitral valve cusps http://ard.bmj.com/ that different heart tissues may be affected (Tauben- (Edler 1961; Zaky et al., 1968; Dillon et al., 1973). haus et al., 1955; Shearn, 1959; Brigden et al., 1960; In this study echocardiography was used to Kong et al., 1962; Hejtmancik et al., 1964; James determine the incidence and severity of pericardial et al., 1965; Estes and Christian, 1971; Cosh, 1972). effusion and mitral valve involvement in 32 living The verrucous endocarditis which mainly affects the cases of SLE. mitral valve rarely results in significant valvular obstruction or regurgitation, and is therefore found Patients and methods more often at autopsy than in life (Harvey et al., on September 27, 2021 by guest. Protected 1954; Sheam, 1959; Brigden et al., 1960). The Thirty-two patients with SLE (15 to 68 years of age, natural history of this kind oflesion is unknown, and mean 38 years) were studied. The diagnosis of SLE no correlation has been found between histological was established according to criteria defined by the findings of endocarditis and heart murmurs (Jessar American Rheumatism Association (Cohen and et al., 1953; Shearn, 1959; Brigden et al., 1960; Canoso, 1972). The mean duration of illness in the Kong et al., 1962). In addition, some evidence of 30 women and 2 men was 9 years, range 1-27 years. pericarditis is practically always found at autopsy in All patients had been treated at some time during SLE patients, although it too may pass unrecognized the course of their illness with corticosteroids; 22 during life (Brigden et al., 1960). Echocardiography were on maintenance doses of steroids at the time has been shown to be a sensitive technique for of study. A complete history and physical examination were carried out on each patient, with special attention to Accepted for publication November 16, 1976 the cardiovascular system. A standard 12-lead Correspondence to Dr. Uri Elkayam, Albert Einstein College of Medicine, Division of Cardiology, 1300 Morris Park electrocardiogram and chest x-ray were taken on Avenue, Bronx, New York 10461 USA each patient. The echocardiograms were recorded 349 Ann Rheum Dis: first published as 10.1136/ard.36.4.349 on 1 August 1977. Downloaded from 350 Elkayam, Weiss, Laniado with an ultrasound device (Unirad Corp. Series 100) Results using a 7 5 cm focus transducer which measured 12 mm in diameter. Echocardiograms were recorded During the study 30 patients of the group were with rigid adherence to the technique and criteria completely free of any cardiac symptoms, 2 patients previously established (Chang, 1976; Feigenbaum, experienced exertional dyspno-a, one of whom also 1972; Horowitz et al., 1974). The echoes were suffered from anginal pains. 3 patients had a past displayed on an oscilloscope in the time motion history of acute transient episodes of congestive mode, and were recorded on polaroid film along heart failure, probably due to mycarditis; 9 had a with a superimposed electrocardiogram. Measure- history of hypertension; 2 complained of occasional ments of the diastolic closure (E-F slope) were made palpitations; 3 had a history of chest pain suggestive on multiple complexes and the highest value was of pericardial or pleural involvement; and 2 had recorded. transient episodes of pericardial friction rub. ilMm__ ;s: .. .*e-. :': .--. ..MuWmWMW" --:--m'-AP'NI-Q0.'40MWIM copyright. Fig. I Normal echocardiogram in a 38-year-old woman with SLEhttp://ard.bmj.com/ of 16 years' duration. CW= chest wall; R V=right ventricle: IVS =intraventricular septum; LV=left ventricle; AMV= anterior mitral valve leaflet; PMV=posterior mitral valve leaflet. on September 27, 2021 by guest. Protected Ann Rheum Dis: first published as 10.1136/ard.36.4.349 on 1 August 1977. Downloaded from Pericardial effusion and mitral valve involvement in systemic lupus erythemwtosus 351 The cardiovascular examination was entirely leaflets (Fig. 1), and 1 patient showed an irregular normal in 8 patients, hypertension was found in 6 thickening of the leaflets (Fig. 2). All patients had a patients (BP>160/90), a fourth heart sound was normal E-F slope: the range was 82-192 mm/s, heard in 1 patient, a soft systolic murmur was heard average 127 mm/s. The amplitude of the mitral at the apex in 8 patients, and 3 patients had a grade valve opening (C-E) ranged between 20 and 32 mm. 3/6 apical holosystolic murmur. Another 6 patients No echo-free space was seen between the anterior had a systolic ejection type murmur at the aortic right ventricular wall and the stationary chest wall area and 1 patient had a diastolic murmur grade 2/6 in any of the patients. These findings excluded along the left sternal border. Bilateral basilar moist noteworthy anterior pericardial effusion. Echo- rales were found in one patient. The electrocardio- cardiographic evidence of posterior pericardial gram was abnormal in 14 patients. The abnormal effusion was seen in 2 patients (Fig. 3). Pericardio- findings were sinus tachycardia in 2 patients, major centesis was not performed to determine the exact left axis deviation (>-30o) in 2 patients, low volume of the pericardial fluid. voltage (<5 mm in all limb leads) in 1 patient, left ventricular hypertrophy in 2 patients, incomplete Discussion right bundle-branch block in 1 patient, ventricular premature contractions in 3 patients, and atrial MITRAL VALVE INVOLVEMENT premature contractions in 1 patient. The postero- It is commonly assumed that the pathological anterior and lateral chest x-rays were normal in 29 changes occurring in Libman-Sachs endocarditis do patients, 3 patients showed cardiomegaly, 1 of them not cause distortion of the valvular structure and also showed dilatation of aorta and emphysema of therefore do not significantly change the haemo- lungs. dynamic properties of the valves (Shearn, 1959; According to the echocardiographic data, 31 Brigden et al., 1960; Hejtmancik et al., 1960; Kong patients had a normal thickness of the mitral valve '4k copyright. http://ard.bmj.com/ on September 27, 2021 by guest. Protected .e- I. ;..r , -.0 ..-., )- _ w- - - - ---.<1 -PER I' .1 - "I,_ : I - 1,1. -1 "qvo, %. Fig. 3 Echocardiogram shows a posterior pericardial Fig. 2 Echocardiogram of the anterior mitral valve (A) effusion (PE). Note that as the gain is diminished an showing non-uniform thickening suggesting the presence of echo-free space is visualized between the posterior Libman-Sachs vegetations (veg). P=posterior mitral valve pericardium (PER) and the epicardium (EP). leaflet. EN= endocardium. Ann Rheum Dis: first published as 10.1136/ard.36.4.349 on 1 August 1977. Downloaded from 352 Elkayam, Weiss, Laniado et al., 1962). Our findings of normal thickness and (Griffith and Vural, 1951; Shearn, 1959; Brigden et movement of the mitral valve leaflets in 31 out of 32 al., 1960; Hejtmancik et al., 1964). Pericardial SLE patients support this assumption. effusion was found in 2 of our 32 patients, a very Our results disagree, however, with those of a small percentage in contrast to 44% found by recent study published by Maniscalco et al. (1975), Maniscalco et al. (1975). in which they found a decreased E-F slope in 9 out Pericardial involvement, like any other organ of 25 patients with SLE and thickening of the mitral involvement in this disease, will be aggravated by an valve in 2 patients. If stenosis of the mitral valve, acute phase. All our cases were outpatients and none due to endocardial involvement, was the cause of a showed any signs of an acute phase of the disease. decreased E-F slope, one would expect to find Brigden et al. (1960) found evidence of recent or old additional changes similar to those observed in pericarditis at autopsy in 20 out of 27 cases: in rheumatic involvement of the mitral valve. Such those showing recent effusion the disease was up to changes include thickening of the mitral cusps, 3 years' duration, whereas in those showing chronic decreased excursion of the leaflets and abnormal adhesions the disease was from 2 to 11 years' dura- posterior leaflet movement in diastole (Segal et al., tion, and in some of these the pericardial space was 1974). Maniscalco and co-workers did not state totally obliterated. The duration of the disease in whether the 2 patients with thickening of the mitral our series was more than 3 years in 25 out of 32 valve belong to the group of 9 patients with decreased patients, which may account for the lowincidence E-F slope, and did not deal with the other changes of pericardial effusion.