Primary Sjögren’s syndrome (pSS) is a chronic autoimmune disease characterised by lymphocytic infiltration of the salivary and lacrimal glands.1 Similar lymphocytic infiltrates may invade visceral organs, and this results in several extraglandular manifestations.1 Among these, a clinically overt heart disease is very rare.2-4 However, recent echocardiographic studies showed that asymptomatic cardiac involvement is frequent in pSS. Thus, Rantapää-Dahlqvist and colleagues⁵ reported signs of present or previous pericarditis in nine of 27 (33%) pSS patients. Of the echocardiographic measurements, the right ventricular anterior wall and the left ventricular posterior wall were significantly smaller in patients with pericarditis than in those without pericardial serositis. Moreover, in the pericarditis patients, the regional fractional shortening of the left ventricle was …