{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T02:16:53Z","timestamp":1792289813387,"version":"4.4.0"},"reference-count":30,"publisher":"Endocrinology Research Centre","issue":"5","license":[{"start":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T00:00:00Z","timestamp":1636675200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.probl-endojournals.ru\/jour\/about\/editorialPolicies#openAccessPolicy"}],"content-domain":{"domain":["www.probl-endojournals.ru"],"crossmark-restriction":true},"short-container-title":["Probl Endokrinol (Mosk)"],"abstract":"<jats:p><jats:bold>BACKGROUND<\/jats:bold>: The combination of primary hyperparathyroidism (PHPT) with anemia was first described in 1931. It remains unclear whether PHPT is the direct cause of anemia, or it develops due to PHPT\u2019s complications. The frequency of PHPT-\u00adassociated anemia in the Russian population is unknown.<jats:bold>AIM<\/jats:bold>: To assess the prevalence of anemia in patients with PHPT admitted to the Department of Parathyroid Glands Pathology in the Endocrinology Research Centre from January 2017 to August 2020.<jats:bold>MATERIALS AND METHODS<\/jats:bold>: The study included patients with PHPT over 18 years old. A single-center observational one-stage one-sample uncontrolled study was carried out. We analyzed laboratory and instrumental data obtained during inpatient examination in accordance with the standards of medical care. Statistical analysis was performed using Statistica 13 (StatSoft, USA) and SPSS (IBM, USA) software packages.<jats:bold>RESULTS<\/jats:bold>: The study included 327 patients with PHPT, 28 (9%) men and 299 (91%) women. The median age was 59 years [51; 66]. 26 patients (8%) with anemia were identified. Statistically significant differences between patients with and without anemia were found only in the GFR. Comparison of patients with and without anemia didn\u2019t reveal any significant differences in the incidence of PHPT\u2019s complications.Significant differences in serum hemoglobin concentration and average hemoglobin concentration in erythrocytes were revealed between patients with and without vertebrae fractures. In the group of patients without compression fractures these parameters were higher.In the subgroup of patients with total calcium concentration above 3 mmol\/L and PTH above 3 normal values, the incidence of anemia reached 21% (95% CI: 10%; 35%). Within this group we revealed tendencies to higher levels of PTH, ionized calcium and osteocalcin in patients with anemia.<jats:bold>CONCLUSION<\/jats:bold>: In general, there was no correlation between hypercalcemia, the degree of PTH elevation and the presence of anemia in patients with PHPT. However, in the subgroup of patients with severe hypercalcemia, there was a relationship between the concentration of PTH, ionized calcium and the presence of anemia. In patients with PHPT and vertebral fractures, significantly lower concentrations of blood hemoglobin and hemoglobin in erythrocytes were observed.<\/jats:p>","DOI":"10.14341\/probl12807","type":"journal-article","created":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T07:31:07Z","timestamp":1636702267000},"page":"11-19","update-policy":"https:\/\/doi.org\/10.14341\/crossmarkpolicy2018","source":"Crossref","is-referenced-by-count":1,"title":["Assessment of the prevalence of anemia in patients with primary hyperparathyroidism: a single-center observational study"],"prefix":"10.14341","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9462-8522","authenticated-orcid":true,"given":"A. P.","family":"Miliutina","sequence":"first","affiliation":[{"name":"Endocrinology Research Center; Pirogov Russian National Research Medical University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6581-4521","authenticated-orcid":true,"given":"A. M.","family":"Gorbacheva","sequence":"additional","affiliation":[{"name":"Endocrinology Research Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6935-3187","authenticated-orcid":true,"given":"A. R.","family":"Ajnetdinova","sequence":"additional","affiliation":[{"name":"Endocrinology Research Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6667-062X","authenticated-orcid":true,"given":"A. K.","family":"Eremkina","sequence":"additional","affiliation":[{"name":"Endocrinology Research Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9717-9742","authenticated-orcid":true,"given":"N. G.","family":"Mokrysheva","sequence":"additional","affiliation":[{"name":"Endocrinology Research Center"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"5458","published-online":{"date-parts":[[2021,11,12]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","unstructured":"Yeh MW, Ituarte PHG, Zhou HC, et al. Incidence and prevalence of primary hyperparathyroidism in a racially mixed population. J Clin Endocrinol Metab. 2013;98(3):1122-9. doi: https:\/\/doi.org\/10.1210\/jc.2012-4022","DOI":"10.1210\/jc.2012-4022"},{"key":"ref2","unstructured":"Adami S, Marcocci C, Gatti D. Epidemiology of primary hyperparathyroidism in Europe. 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