Gastroparesis may be the cause of unexplained dyspepsia in patients with primary Sjögren syndrome

Upper digestive symptoms may be present in up to 50% of patients with primary Sjögren syndrome (pSS). We report a retrospective cohort of gastroparesis in a population of pSS presenting unexplained dyspepsia. Delayed gastric emptying was defined by a gastric emptying time above 113min or by a retention percentage at 4h more than 10% on scintigraphy. Eleven patients with primary Sjögren syndrome and gastroparesis were included in a retrospective study. Every patients were women of age 48±18y. The average time of gastric emptying was 725,18±704,45min. 64% of patients had abdominal pain or gastric heaviness. A central or peripheral neurologic involvement was described in respectively 9 and 27% of cases. The diagnostic delay of gastroparesis was higher than 24 months. In primary Sjögren syndrome, gastroparesis should be suspected in case of unexplained dyspepsia, and a scintigraphy performed to prove the diagnosis. A neurologic involvement could explain gastroparesis, but prospective studies are needed for a better understanding of this disorder.