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This study assesses recent evidence on predictive factors for post-thyroidectomy hypocalcaemia in order to identify the patients affected and aid prevention.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120001024_sec_a2\" sec-type=\"methods\"><jats:title>Method<\/jats:title><jats:p>Two authors independently assessed articles and extracted data to provide a narrative synthesis. This study was an updated systematic search and narrative review regarding predictors of post-thyroidectomy hypocalcaemia using the Ovid Medline, Embase, Cochrane and Cinahl databases. Results were limited to papers published from January 2012 to August 2019.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120001024_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>Sixty-three observational studies with a total of 210 401 patients met the inclusion criteria. The median incidence was 27.5 per cent for transient biochemical hypocalcaemia, 12.5 per cent for symptomatic hypocalcaemia and 2.2 per cent for permanent hypocalcaemia. The most frequent statistically significant predictor of hypocalcaemia was peri-operative parathyroid hormone level. Symptomatic hypocalcaemia and permanent hypocalcaemia were seen more frequently in patients undergoing concomitant neck dissection.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215120001024_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusion<\/jats:title><jats:p>Many factors have been studied for their link to post-thyroidectomy hypocalcaemia, and this study assesses the recent evidence presented in each case.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215120001024","type":"journal-article","created":{"date-parts":[[2020,6,10]],"date-time":"2020-06-10T09:08:18Z","timestamp":1591780098000},"page":"541-552","source":"Crossref","is-referenced-by-count":28,"title":["Predictors of post-thyroidectomy hypocalcaemia: a systematic and narrative review"],"prefix":"10.1017","volume":"134","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1671-8466","authenticated-orcid":false,"given":"A E L","family":"McMurran","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R","family":"Blundell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2020,6,10]]},"reference":[{"key":"S0022215120001024_ref34","doi-asserted-by":"publisher","DOI":"10.1002\/hed.24775"},{"key":"S0022215120001024_ref6","doi-asserted-by":"publisher","DOI":"10.1111\/cen.12515"},{"key":"S0022215120001024_ref63","first-page":"A5157","article-title":"Post-operative parathyroid hormone can be used as a predictor of normocalcaemia after total thyroidectomy","volume":"62","author":"Abdel-Halim","year":"2015","journal-title":"Dan Med J"},{"key":"S0022215120001024_ref36","first-page":"82","article-title":"Parathyroid hormone measurement in prediction of hypocalcaemia following thyroidectomy","volume":"24","author":"Mehrvarz","year":"2014","journal-title":"J Coll Physicians Surg Pak"},{"key":"S0022215120001024_ref8","doi-asserted-by":"publisher","DOI":"10.1186\/1741-7015-11-52"},{"key":"S0022215120001024_ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjoto.2011.06.004"},{"key":"S0022215120001024_ref51","doi-asserted-by":"publisher","DOI":"10.1590\/S0004-27302012000300003"},{"key":"S0022215120001024_ref2","unstructured":"2 The British Association of Endocrine and Thyroid Surgeons. 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