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Tolvaptan Can Improve Clinical Course in Responders Validation Analysis for the Definition of Responsiveness by Urine Volume
University of Tokyo, Japan .
University of Tokyo, Japan .
University of Tokyo, Japan .
University of Tokyo, Japan .
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2013 (English)In: International Heart Journal, ISSN 1349-2365, E-ISSN 1349-3299, Vol. 54, no 6, 377-381 p.Article in journal (Refereed) Published
Abstract [en]

We previously defined "responders" as patients with increases in urine volume (UV) on day 1 after the administration of tolvaptan (TLV), and demonstrated that responders to TLV could be predicted with considerable accuracy by urine osmolality (U-OSM) levels. Responders and non-responders to TLV should be associated with different clinical courses after a certain time following TLV administration. Therefore, the aim of the present study was to validate our definition of responders by clinical parameters 1 week after administration of TLV. Data (n = 85) were obtained from in-hospital patients with decompensated heart failure (HF) who had received TLV at 3.75-15 mg daily, and clinical data at 1 week after the administration of Thy were compared with those of baseline. Sixty patients (70.6%) were "responders", in whom UV on day 1 increased after the administration of TLV compared with day 0. "Non-responders" were older, and had higher serum creatinine concentration and lower baseline U-OSM than "responders". Serum creatinine concentration increased significantly in "non-responders", but was unchanged in "responders". Body weight, plasma B-type natriuretic peptide concentration, and HF symptom score decreased significantly in "responders", but remained unchanged in "non-responders". Increases in UV after the first administration of TLV were closely correlated with improvement of congestive HF after 1 week of TLV treatment, which verified our definition of "responders" to TLV.

Place, publisher, year, edition, pages
International Heart Journal Association , 2013. Vol. 54, no 6, 377-381 p.
Keyword [en]
Vasopressin; Heart failure; Urine osmolality
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-111178DOI: 10.1536/ihj.54.377ISI: 000330147100007OAI: oai:DiVA.org:liu-111178DiVA: diva2:754543
Note

Funding Agencies|Japan Society for the Promotion of Science [224943]; Japanese Heart Foundation; Japanese Association for Cerebro-Cardiovascular Disease Control; AstraZeneca; Pfizer Health Research Foundation

Available from: 2014-10-10 Created: 2014-10-10 Last updated: 2017-12-05Bibliographically approved

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Kato, Naoko

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