Publications by authors named "Shuko Tobita"

Objective: Histamine-2 receptor antagonists (H2RAs) may induce a higher risk of developing delirium than proton pump inhibitors (PPIs), but current evidence is insufficient. Therefore, this study aimed to investigate whether anti-ulcer drugs increase delirium risk.

Method: Data were obtained from the medical records of patients admitted to a hospital due to trauma.

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Article Synopsis
  • There is limited evidence on the effectiveness of dual orexin receptor antagonists (DORAs) such as suvorexant and lemborexant in preventing delirium, especially in critically ill patients.
  • A study was conducted involving 633 patients admitted to an emergency critical care center to investigate the impact of these medications on delirium occurrence.
  • The results indicated that both suvorexant and lemborexant significantly reduced the risk of delirium, with adjusted hazard ratios of 0.34 and 0.21 respectively, suggesting their potential efficacy in this patient population.
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Objective: Although histamine-2 receptor antagonists (H2RAs) have been shown to be more likely to cause delirium than proton pump inhibitors (PPIs), these results were not adjusted for potential confounding factors. Accordingly, we investigated whether H2RAs and PPIs are risk factors for delirium, even when adjusting for other risk factors by analyzing adverse drug event reports compiled in the post-marketing stages of drugs provided by the Japanese regulatory authorities.

Method: We analyzed 577,431 reports in the Japanese Adverse Drug Event Report database from April 2004 to July 2020.

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Lithium administration can reportedly cause toxicity, including lithium-associated thrombosis; however, not all reported cases of this adverse effect have been attributable to lithium overdoses. We report here two cases of deep vein thrombosis that occurred in association with lithium toxicity. Lithium overdose was deemed to be the cause in only one of these cases; a patient in whom deep vein thrombosis occurred 11 days after identification of lithium toxicity.

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Lithium, which is used for bipolar disorder, can cause toxicity. There are two categories of lithium toxicity, namely, overdose-related and not overdose-related. However, the treatment and prognosis of each type of toxicity are not clearly understood.

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