{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:10:19Z","timestamp":1760145019833,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,11]],"date-time":"2024-06-11T00:00:00Z","timestamp":1718064000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Objectives: This real-life study aimed to evaluate the safety of acetazolamide (ACZ), a carbonic anhydrase inhibitor with diuretic effects. ACZ has recently been proven to improve decongestion in the context of patients hospitalized for acute heart failure (HF). However, data in terms of safety are lacking. Methods: We conducted a monocentric observational prospective study from November 2023 to February 2024 in a 12-bed cardiology department, recording adverse events (hypotension, severe metabolic acidosis, severe hypokalemia and renal events) during in-hospital HF treatment. All patients hospitalized for acute HF during the study period treated with ACZ (500 mg IV daily for 3 days) on top of IV furosemide (n = 28, 48.3%) were compared with patients who have been treated with IV furosemide alone (n = 30, 51.7%). Results: The patients treated with ACZ were younger than those without (median age 78 (range 67\u201386) vs. 85 (79\u201390) years, respectively, p = 0.01) and had less frequent chronic kidney disease (median estimated glomerular fraction rate (60 (35\u201365) vs. 38 (26\u201363) mL\/min, p = 0.02). As concerned adverse events during HF treatment, there were no differences in the occurrences of hypotension (three patients [10.7%] in the ACZ group vs. four [13.3%], p = 0.8), renal events (four patients [14.3%] in the ACZ group vs. five [16.7%], p = 1) and severe hypokalemia (two [7.1%] in the ACZ group vs. three [10%], p = 1). No severe metabolic acidosis occurred in either group. Conclusions: Although the clinical characteristics differed at baseline, with younger age and better renal function in patients receiving ACZ, the tolerance profile did not significantly differ from patients receiving furosemide alone. Additional observational data are needed to further assess the safety of ACZ\u2013furosemide combination in the in-hospital management of HF, especially in older, frail populations.<\/jats:p>","DOI":"10.3390\/jcm13123421","type":"journal-article","created":{"date-parts":[[2024,6,11]],"date-time":"2024-06-11T12:11:00Z","timestamp":1718107860000},"page":"3421","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Acetazolamide Tolerance in Acute Decompensated Heart Failure: An Observational Study"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7885-1377","authenticated-orcid":false,"given":"Ignacio","family":"Sosa Mercado","sequence":"first","affiliation":[{"name":"Department of Cardiology and Vascular Diseases, H\u00f4pitaux du Pays du Mont Blanc, 74700 Sallanches, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sophie","family":"Putot","sequence":"additional","affiliation":[{"name":"Department of Cardiology and Vascular Diseases, H\u00f4pitaux du Pays du Mont Blanc, 74700 Sallanches, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elena","family":"Fertu","sequence":"additional","affiliation":[{"name":"Department of Cardiology and Vascular Diseases, H\u00f4pitaux du Pays du Mont Blanc, 74700 Sallanches, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4408-554X","authenticated-orcid":false,"given":"Alain","family":"Putot","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine and Infectious Diseases, H\u00f4pitaux du Pays du Mont Blanc, 74700 Sallanches, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3599","DOI":"10.1093\/eurheartj\/ehab368","article-title":"2021 ESC Guidelines for the Diagnosis and Treatment of Acute and Chronic Heart Failure: Developed by the Task Force for the Diagnosis and Treatment of Acute and Chronic Heart Failure of the European Society of Cardiology (ESC) With the Special Contribution of the Heart Failure Association (HFA) of the ESC","volume":"42","author":"McDonagh","year":"2021","journal-title":"Eur. 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