Objective:The aim of this study was to examine the effectiveness of ramelteon and suvorexant for delirium prevention in real-world practice. It explored whether ramelteon and/or suvorexant would affect delirium prevention among both patients at risk for but without delirium (patients at risk) and those with delirium the night before a consultation. Methods: This multicenter, prospective, observational study was conducted by trained psychiatrists at consultation-liaison psychiatric services from October 1, 2017, to October 7, 2018. Patients who were aged 65 years or older and hospitalized because of acute diseases or elective surgery, had risk factors for delirium, and had insomnia or delirium on the night before the consultation were prescribed ramelteon and/or suvorexant. The decision to take medication was left to the discretion of each patient. The primary outcome was incidence of delirium based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, during the first 7 days. Results:Among 526 patients at risk, those taking ramelteon and/or suvorexant developed delirium significantly less frequently than those who did not, after control for the effects of risk factors on the estimate of an independent association between the effects of ramelteon and/or suvorexant and the outcome of developing delirium (15.7% vs 24.0%; odds ratio [OR] = 0.48;, 95% CI, 0.29-0.80; P = .005). Similar results were found among 422 patients with delirium (39.9% vs 66.3%; OR = 0.36; 95% CI, 0.22-0.59; P < .0001). Conclusions: Ramelteon and suvorexant appear to be effective for delirium prevention in real-world practice. J Clin Psychiatry 2020;81 (1):19m12865 To cite: Hatta K, Kishi Y, Wada K, et al. Real-world effectiveness of ramelteon and suvorexant for delirium prevention in 948 patients with delirium risk factors.
Background: The diagnostic efficacy of lung ultrasonography (LUS) has been widely investigated. However, the clinical value of LUS for perioperative monitoring has rarely been reported. The aim of this study was to evaluate the ability of LUS to assess lung aeration status after one-lung ventilation (OLV) using a validated scoring system. Methods: In this prospective observational study, patients undergoing elective video-assisted thoracic surgery (VATS) with OLV underwent a lung ultrasound examination just after induction of anesthesia and at the end of the surgery. After each lung ultrasound examination, a semiquantitative score, the LUS score, was calculated to assess lung aeration on the ventilated dependent side and the non-dependent side separately. The relationship between the LUS scores and various patient-related factors was also investigated. Results: Twenty-five patients were studied. All lung ultrasound examinations were successfully completed. LUS scores after OLV on the dependent side (median [IQR]: 2 [1–4]) increased significantly from baseline (1 [0–1.5], P < 0.001). Further, LUS scores on the non-dependent side (2 [1.5–3.5]) increased significantly from baseline (1 [0–1.5], P < 0.001). None of the factors analyzed was significantly correlated with LUS scores after OLV. Conclusion: LUS examination is possible after VATS with OLV on both sides of the thorax. Ultrasonography-measured lung aeration scores increased from baseline on both sides.
Background The prospect of patients with obstructive respiratory dysfunction undergoing surgery has increased with the growth in the elderly population; however, there have been few investigations about the recovery profile from volatile anesthesia. This study aimed to investigate the impact of obstructive respiratory dysfunction on recovery from desflurane anesthesia. Methods A retrospective cohort study included patients who underwent orthopedic lower limb surgery between September 2018 and March 2020. Patients were divided into two groups: those whose preoperative forced expiratory volume in 1 s/forced vital capacity ratio was <70% (obstructive respiratory dysfunction group, n = 180) or ≥70% (control group, n = 45). Time from discontinuation of desflurane to extubation (extubation time) was compared between the two groups. Univariate and multivariable Cox regression models were used to compare odds ratios for prolonged extubation (≥10 min). Results A total of 45 patients with obstructive respiratory dysfunction and 180 control patients were eligible for analysis. Extubation time was significantly longer in patients in the obstructive respiratory dysfunction group than those in the control group. In the multivariable Cox model, male sex (HR = 2.00, 95% CI 1.12–3.57; P = 0.020) and obstructive respiratory dysfunction (HR = 2.07, 95% CI 1.05–4.08; P = 0.036) were associated with prolonged extubation. Conclusions This retrospective study indicated that extubation time was longer in patients with obstructive respiratory function than in patients without obstructive respiratory function. Male sex and obstructive respiratory function were factors that contributed to extubation time.
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