Salivary scintigraphy for Sjögren's syndrome in patients with xerostomia: A retrospective study

• Published in: Oral diseases 2018-05, Vol.24 (4), p.552-560
• Main Authors: Nadal, M, Levy, M, Bakhsh, A, Joly, A, Maruani, A, Vaillant, L, Erra, B, Samimi, M
• Format: Article
• Language: English
• Subjects: Accuracy; Burning mouth syndrome; Dentistry; Diagnosis; Glands; Human health and pathology; Life Sciences; Salivary gland; salivary gland scintigraphy; Scintigraphy; Secretion; sicca syndrome; Sjogren's syndrome; Sjögren's syndrome; Xerostomia
• ISSN: 1354-523X; 1601-0825
• DOI: 10.1111/odi.12802

Objectives The value of salivary gland scintigraphy in the diagnosis of Sjögren's syndrome remains controversial. The primary aim of this study was to estimate the diagnostic accuracy of salivary gland scintigraphy in the diagnosis of Sjögren's syndrome among 237 patients with xerostomia. Methods We retrospectively compared eight scintigraphy parameters between 106 Sjögren patients and 131 non‐Sjögren patients. Results Seven of the eight parameters were significantly decreased in patients with Sjögren; however, their diagnostic accuracy was low, with areas under the curves (AUCs) ranging from 0.58 (95% CI 0.50‐0.65) to 0.63 (95% CI: 0.55‐0.70). The prestimulatory oral activity index allowed discrimination between primary and secondary Sjögren's syndrome (AUC 0.73, 95% CI: 0.62‐0.84), and the secretion velocity for parotid glands allowed discrimination between patients with Sjögren and burning mouth syndrome (AUC 0.71, 95% CI 0.59‐0.82). Conclusion The accuracy of scintigraphy parameters for the diagnosis of Sjögren's syndrome among patients with xerostomia was low; however, some functional indices appeared to assist discrimination between primary and secondary SS patients and between subgroups of patients with different causes of xerostomia.