{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T23:27:35Z","timestamp":1783121255638,"version":"3.54.6"},"reference-count":29,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T00:00:00Z","timestamp":1554854400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ir. j. psychol. Med."],"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:sec id=\"S0790966719000090_as1\"><jats:title>Objectives:<\/jats:title><jats:p>Lithium-treated patients with polyuria are at increased risk of lithium toxicity. We aimed to describe the clinical benefits and risks of different management strategies for polyuria in community lithium-treated patients.<\/jats:p><\/jats:sec><jats:sec id=\"S0790966719000090_as2\"><jats:title>Methods:<\/jats:title><jats:p>This is a naturalistic, observational, prospective 12-month cohort study of lithium-treated patients with polyuria attending a community mental health service in Dublin, Ireland. When polyuria was detected, management changed in one of four ways: (a) no pharmacological change; (b) lithium dose decrease; (c) lithium substitution; or (d) addition of amiloride.<\/jats:p><\/jats:sec><jats:sec id=\"S0790966719000090_as3\"><jats:title>Results:<\/jats:title><jats:p>Thirty-four participants were diagnosed with polyuria and completed prospective data over 12 months. Mean 24-hour urine volume decreased from 4852 to 4344 ml (<jats:italic>p<\/jats:italic> = 0.038). Mean early morning urine osmolality decreased from 343 to 338 mOsm\/kg (<jats:italic>p<\/jats:italic> = 0.823). Mean 24-hour urine volume decreased with each type of intervention but did not attain statistical significance for any individual intervention group. Mean early morning urine osmolality decreased in participants with no pharmacological change and increased in participants who received a change in medication but these changes did not attain statistical significance. Only participants who discontinued lithium demonstrated potentially clinically significant changes in urine volume (mean decrease 747 ml in 24 hours) and early morning urine osmolality (mean increase 31 mOsm\/kg) although this was not definitively proven, possibly owing to power issues.<\/jats:p><\/jats:sec><jats:sec id=\"S0790966719000090_as4\"><jats:title>Conclusions:<\/jats:title><jats:p>Managing polyuria by decreasing lithium dose does not appear to substantially improve objective measures of renal tubular dysfunction, whereas substituting lithium may do so. Studies with larger numbers and longer follow-up would clarify these relationships.<\/jats:p><\/jats:sec>","DOI":"10.1017\/ipm.2019.9","type":"journal-article","created":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T11:54:03Z","timestamp":1554897243000},"page":"20-27","source":"Crossref","is-referenced-by-count":3,"title":["Managing polyuria during lithium treatment: a preliminary prospective observational study"],"prefix":"10.1017","volume":"39","author":[{"given":"J. C.","family":"Kinahan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"N\u00ed Chorcor\u00e1in","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Cunningham","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Barry","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6113-1384","authenticated-orcid":false,"given":"B. D.","family":"Kelly","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2019,4,10]]},"reference":[{"key":"S0790966719000090_ref7","unstructured":"Bichet, DG (2017). 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