{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T03:34:02Z","timestamp":1792467242010,"version":"4.5.0"},"reference-count":34,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2024,3,19]],"date-time":"2024-03-19T00:00:00Z","timestamp":1710806400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Primary hyperparathyroidism (pHPT) is a common endocrine disorder caused by excessive production of parathyroid hormone (PTH) leading to elevated calcium levels. Diagnosis is primarily based on biochemical evaluation, and surgery is the curative treatment. Imaging techniques like ultrasound and Tc-99m Sestamibi scintigraphy are used for localization, but selective Internal Jugular Venous (SVS) becomes valuable in cases of inconclusive or conflicting results. This study evaluated the diagnostic efficacy of SVS for localizing parathyroid adenomas in cases where non-invasive radiological diagnostic methods yielded inconclusive results or negative findings despite clinical symptoms suggestive of pHPT. Materials and Methods: In this retrospective study, a total of 28 patients diagnosed with pHPT underwent SVS at a tertiary center known for receiving referrals from 2017 to 2022. The diagnoses were confirmed through biochemical analysis. The SVS results in 22 patients were compared with non-invasive imaging methods, including ultrasound, scintigraphy, and computed tomography with\/without contrast material. SVS was indicated when at least two non-invasive diagnostic procedures failed to clearly localize the parathyroid glands or provided ambiguous results. Results: SVS demonstrated higher sensitivity for localizing parathyroid adenomas compared to non-invasive imaging methods, accurately lateralizing the adenoma in 68.18% of cases. Among the SVS findings, 31.8% of patients had negative results, with 9.1% not having clinically proven parathyroid adenoma, while 22.7% had false negative SVS findings but were later confirmed to have adenoma during surgery. Ultrasound correctly identified the location in 45.45% of cases, CT in 27.27%, and scintigraphy in 40.9%. Conclusions: SVS is a valuable diagnostic tool for accurately localizing parathyroid adenomas in patients with inconclusive non-invasive imaging results. It aids in targeted surgical interventions, contributing to improved management and treatment outcomes in primary hyperparathyroidism.<\/jats:p>","DOI":"10.3390\/medicina60030507","type":"journal-article","created":{"date-parts":[[2024,3,20]],"date-time":"2024-03-20T05:56:07Z","timestamp":1710914167000},"page":"507","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Preoperative Lateralization and Diagnostic Value of Selective Bilateral Internal Jugular Venous Sampling in Primary Hyperparathyroidism: Single-Center Experience"],"prefix":"10.3390","volume":"60","author":[{"given":"Anastasija","family":"Solodjankina","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Riga Stradin\u0161 University, LV-1007 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8952-135X","authenticated-orcid":false,"given":"Aina","family":"Kratovska","sequence":"additional","affiliation":[{"name":"Department of Interventional Radiology, Riga East University Hospital, LV-1038 Riga, Latvia"},{"name":"Department of Radiology, Riga Stradin\u0161 University, LV-1007 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanita","family":"Ponomarjova","sequence":"additional","affiliation":[{"name":"Department of Interventional Radiology, Riga East University Hospital, LV-1038 Riga, Latvia"},{"name":"Department of Radiology, Riga Stradin\u0161 University, LV-1007 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricija","family":"Ivanova","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Riga Stradin\u0161 University, LV-1007 Riga, Latvia"},{"name":"Department of Vascular Surgery, Riga East University Hospital, University of Latvia, LV-1586 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Reza","family":"Mohammadian","sequence":"additional","affiliation":[{"name":"Department of Interventional Radiology, Riga East University Hospital, LV-1038 Riga, Latvia"},{"name":"Department of Radiology, Riga Stradin\u0161 University, LV-1007 Riga, Latvia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/j.yasu.2018.03.006","article-title":"Diagnosis and Management of Hyperparathyroidism","volume":"52","author":"Mallick","year":"2018","journal-title":"Adv. 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