Background:Calcium pyrophosphate crystal deposition disease (CPPD) is associated with a high frequency of comorbidities and vascular calcification [1], but it is unknown whether these factors affect cardiovascular mortality.Objectives:To study the structure of mortality in patients with CPPD and compare with the structure of mortality in the Russian Federation.Methods:217 patients with crystal-verified diagnosis of CPPD (McCarty criteria) were included in the prospective study, aged ≥18 years, mean age 59.2 ± 12.6 years, 82 (38%) men and 134 (62%) women. The median follow-up was 3.9 [1.9; 7.2] years, patients were followed up for at least a year. The exclusion criteria are the presence of other rheumatic diseases with arthritis symptoms. The examination of patients included the history taking, assessment of anthropometric parameters, the presence of comorbidity and the following laboratory tests: determination of serum creatinine level (with calculation of glomerular filtration rate (eGFR) using the MDRD formula), total cholesterol (TC), C-reactive protein (CRP). Statistica 12.0 package was used for statistical data processing.Results:A total of 217 patients were included. Arterial hypertension was detected in 115 (53%) patients, coronary heart disease in 51 (24%) patients, diabetes mellitus in 26 (12%) patients, chronic renal failure in 17 (8%) patients, hyperparathyroidism in 18 (8%) patients, chronic heart failure in 22 (10%) patients. 65 (30%) patients had a family history for CVD, 31 (14%) patients were smokers. 122 (56%) patients had an increased level of total cholesterol> 5.0 mmol/L and 54 (25%) patients – the level of CRP>5 mg/L.23 (11%) patients, 12 (52%) men and 11 (48%) women, died, the average age of the deceased being 62.7±9.2 years. In 15 (65%) cases out of 23, death occurred due to cardiovascular complications, which is higher than the cardiovascular mortality rate in the Russian Federation (53%). Among CVD, the distribution was as follows: acute myocardial infarction - 6 (40%) patients,apoplectic attack - 5 (33) patients, thrombosis - 2 (13%) patients, rhythm disturbances – 1 (7%) patient and decompensation of chronic heart failure - 1 (7%) patient.Conclusion:CVD is the main cause of death in patients with CPPD and the total frequency of mortality from CVD exceeds the population one. Further research is needed, including studies of the risk factors for overall and cardiovascular mortality in patients with CPPD.References:[1]Abhishek A, Doherty S, Maciewicz R, et al. Association between low cortical bone mineral density, soft-tissue calcification, vascular calcification and chondrocalcinosis: a case-control study. Ann Rheum Dis. 2013;73(11):1997-2002. doi: 10.1136/annrheumdis2013-203400Disclosure of Interests:Maxim Elisеev Speakers bureau: Berlin Chemie Menarini Group, Novartis International AG, EGIS, Aleksandra Novikova: None declared., Olga Sheliabina: None declared., Maria Chikina: None declared.