Background Many studies have compared quality of life of post-intensive care syndrome (PICS) patients with age-matched population-based controls. Many studies on PICS used the 36-item Short Form (SF-36) health survey questionnaire version 2, but lack the data for SF-36 values before and after intensive care unit (ICU) admission. Thus, clinically important changes in the parameters of SF-36 are unknown. Therefore, we determined the frequency of co-occurrence of PICS impairments at 6 months after ICU admission. We also evaluated the changes in SF-36 subscales and interpreted the patients’ subjective significance of impairment. Methods A prospective, multicenter, observational cohort study was conducted in 16 ICUs across 14 hospitals in Japan. Adult ICU patients expected to receive mechanical ventilation for > 48 h were enrolled, and their 6-month outcome was assessed using the questionnaires. PICS definition was based on the physical status, indicated by the change in SF-36 physical component score (PCS) ≥ 10 points; mental status, indicated by the change in SF-36 mental component score (MCS) ≥ 10 points; and cognitive function, indicated by the worsening of Short-Memory Questionnaire (SMQ) score and SMQ score at 6 months < 40. Multivariate logistic regression model was used to identify the factors associated with PICS occurrence. The patients’ subjective significance of physical and mental symptoms was assessed using the 7-scale Global Assessment Rating to evaluate minimal clinically important difference (MCID). Results Among 192 patients, 48 (25%) died at 6 months. Among the survivors at 6 months, 96 patients responded to the questionnaire; ≥ 1 PICS impairment occurred in 61 (63.5%) patients, and ≥ 2 occurred in 17 (17.8%) patients. Physical, mental, and cognitive impairments occurred in 32.3%, 14.6% and 37.5% patients, respectively. Population with only mandatory education was associated with PICS occurrence (odds ratio: 4.0, 95% CI 1.1–18.8, P = 0.029). The MCID of PCS and MCS scores was 6.5 and 8.0, respectively. Conclusions Among the survivors who received mechanical ventilation, 64% had PICS at 6 months; co-occurrence of PICS impairments occurred in 20%. PICS was associated with population with only mandatory education. Future studies elucidating the MCID of SF-36 scores among ICU patients and standardizing the PICS definition are required. Trial registration UMIN000034072.
Aim In post‐intensive care syndrome (PICS), long‐term survivors of critical illness present various physical and mental symptoms that can persist for years after discharge. Post‐intensive care syndrome in Japan has not been well described, so this study aims to elucidate its epidemiology. Methods We undertook a single‐center prospective longitudinal cohort study in a mixed intensive care unit (ICU) in a Japanese tertiary hospital. Adult patients emergently admitted to the ICU were eligible for inclusion in the study. To assess activity of daily living (ADL) status and psychiatric symptoms, we posted a questionnaire at 3 and 12 months after discharge from the ICU. We evaluated ADL status, anxiety, depression, and post‐traumatic stress disorder symptoms using the Barthel index, Hospital Anxiety and Depression Scale, and Impact of Event Scale − Revised, respectively. Results Enrolled in this study were 204 patients. We received responses from 117/147 (80%) and 74/98 (76%) patients at 3 and 12 months, respectively. At 3 months, the prevalence of ADL disability, anxiety, depression, and post‐traumatic stress disorder symptoms was 32%, 42%, 48%, and 20%, respectively. At 12 months, the prevalence was 22%, 33%, 39%, and 21%, respectively. The prevalence of any symptoms was 66% at 3 months and 55% at 12 months. Barthel index score at 12 months was improved significantly from that at 3 months. Hospital Anxiety and Depression Scale and Impact of Event Scale − Revised scores at 12 months showed no improvement. Conclusions At 3 and 12 months after ICU discharge, over half of our Japanese patients suffered ADL disability and/or psychiatric symptoms. The ADL disability improved at 1 year, but psychiatric symptoms did not.
Aim: Rikkunshito is a traditional Japanese medicine used for delayed gastric emptying in intensive care units in Japan. This study aimed to investigate whether standard-or high-dose rikkunshito can improve the achievement of enteral calorie target among critically ill adults. Methods: This open-label, single-center, pilot randomized controlled trial was carried out from March 2018 until December 2018 and enrolled critically ill adult patients requiring enteral nutrition by gastric tube for at least 5 days. Patients were randomized into the control group, the standard-dose rikkunshito group (2.5 g three times daily), and the high-dose rikkunshito group (5 g three times daily). Intervention was given for 5 days. The primary outcome measure was the percentage of enteral calorie intake achieved in the target at the fifth day after randomization. Results: The cohort comprised 26 patients; of these, 9, 8, and 9 were included in the control group, the standard-dose group, and the high-dose group, respectively. Twenty-one patients (81%) were included in the primary analysis. The percentage of enteral calorie intake achieved in the target at the fifth day was 59% (interquartile range [IQR], 39-63%), 40% (IQR, 26-61%), and 62% (IQR, 17-83%) in the control, the standard-dose, and the high-dose groups, respectively (P = 0.42). The number of adverse events did not differ significantly between the groups (control group, 4 [44%]; standard-dose group, 3 [38%]; and high-dose group, 4 [44%], P = 1.00). Conclusions: Standard-or high-dose rikkunshito did not improve the achievement of enteral calorie target in critically ill adults.
Background Large multicenter studies reporting on the association between the duration of broad-spectrum antimicrobial administration and the detection of multidrug-resistant (MDR) bacteria in the intensive care unit (ICU) are scarce. We evaluated the impact of broad-spectrum antimicrobial therapy for more than 72 h on the detection of MDR bacteria using the data from Japanese patients enrolled in the DIANA study. Methods We analyzed the data of ICU patients in the DIANA study (a multicenter international observational cohort study from Japan). Patients who received empirical antimicrobials were divided into a broad-spectrum antimicrobial group and a narrow-spectrum antimicrobial group, based on whether they received broad-spectrum antimicrobials for more or less than 72 h, respectively. Differences in patient characteristics, background of infectious diseases and empirical antimicrobial administration, and outcomes between the two groups were compared using the chi-square tests (Monte Carlo method) for categorical variables and the Mann–Whitney U-test for continuous variables. We also conducted a logistic regression analysis to investigate the factors associated with the detection of new MDR bacteria. Results A total of 254 patients from 31 Japanese ICUs were included in the analysis, of whom 159 (62.6%) were included in the broad-spectrum antimicrobial group and 95 (37.4%) were included in the narrow-spectrum antimicrobial group. The detection of new MDR bacteria was significantly higher in the broad-spectrum antimicrobial group (11.9% vs. 4.2%, p = 0.042). Logistic regression showed that broad-spectrum antimicrobial continuation for more than 72 h (OR [odds ratio] 3.09, p = 0.047) and cerebrovascular comorbidity on ICU admission (OR 2.91, p = 0.041) were associated with the detection of new MDR bacteria. Conclusions Among Japanese ICU patients treated with empirical antimicrobials, broad-spectrum antimicrobial usage for more than 72 h was associated with the increased detection of new MDR bacteria. Antimicrobial stewardship programs in ICUs should discourage the prolonged use of empirical broad-spectrum antimicrobial therapy. Trial registration ClinicalTrials.gov, NCT02920463, Registered 30 September 2016, https://clinicaltrials.gov/ct2/show/NCT02920463
Background Cardiac surgery is performed worldwide, and acute kidney injury (AKI) following cardiac surgery is a risk factor for mortality. However, the optimal blood pressure target to prevent AKI after cardiac surgery remains unclear. We aimed to investigate whether relative hypotension and other hemodynamic parameters after cardiac surgery are associated with subsequent AKI progression. Methods We retrospectively enrolled adult patients admitted to 14 intensive care units after elective cardiac surgery between January and December 2018. We defined mean perfusion pressure (MPP) as the difference between mean arterial pressure (MAP) and central venous pressure (CVP). The main exposure variables were time-weighted-average MPP-deficit (i.e., the percentage difference between preoperative and postoperative MPP) and time spent with MPP-deficit > 20% within the first 24 h. We defined other pressure-related hemodynamic parameters during the initial 24 h as exploratory exposure variables. The primary outcome was AKI progression, defined as one or more AKI stages using Kidney Disease: Improving Global Outcomes’ creatinine and urine output criteria between 24 and 72 h. We used multivariable logistic regression analyses to assess the association between the exposure variables and AKI progression. Results Among the 746 patients enrolled, the median time-weighted-average MPP-deficit was 20% [interquartile range (IQR): 10–27%], and the median duration with MPP-deficit > 20% was 12 h (IQR: 3–20 h). One-hundred-and-twenty patients (16.1%) experienced AKI progression. In the multivariable analyses, time-weighted-average MPP-deficit or time spent with MPP-deficit > 20% was not associated with AKI progression [odds ratio (OR): 1.01, 95% confidence interval (95% CI): 0.99–1.03]. Likewise, time spent with MPP-deficit > 20% was not associated with AKI progression (OR: 1.01, 95% CI 0.99–1.04). Among exploratory exposure variables, time-weighted-average CVP, time-weighted-average MPP, and time spent with MPP < 60 mmHg were associated with AKI progression (OR: 1.12, 95% CI 1.05–1.20; OR: 0.97, 95% CI 0.94–0.99; OR: 1.03, 95% CI 1.00–1.06, respectively). Conclusions Although higher CVP and lower MPP were associated with AKI progression, relative hypotension was not associated with AKI progression in patients after cardiac surgery. However, these findings were based on exploratory investigation, and further studies for validating them are required. Trial Registration UMIN-CTR, https://www.umin.ac.jp/ctr/index-j.htm, UMIN000037074.
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