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Background The joint committee of the Japanese Society of Intensive Care Medicine/Japanese Respiratory Society/Japanese Society of Respiratory Care Medicine on ARDS Clinical Practice Guideline has created and released the ARDS Clinical Practice Guideline 2021. Methods The 2016 edition of the Clinical Practice Guideline covered clinical questions (CQs) that targeted only adults, but the present guideline includes 15 CQs for children in addition to 46 CQs for adults. As with the previous edition, we used a systematic review method with the Grading of Recommendations Assessment Development and Evaluation (GRADE) system as well as a degree of recommendation determination method. We also conducted systematic reviews that used meta-analyses of diagnostic accuracy and network meta-analyses as a new method. Results Recommendations for adult patients with ARDS are described: we suggest against using serum C-reactive protein and procalcitonin levels to identify bacterial pneumonia as the underlying disease (GRADE 2D); we recommend limiting tidal volume to 4–8 mL/kg for mechanical ventilation (GRADE 1D); we recommend against managements targeting an excessively low SpO2 (PaO2) (GRADE 2D); we suggest against using transpulmonary pressure as a routine basis in positive end-expiratory pressure settings (GRADE 2B); we suggest implementing extracorporeal membrane oxygenation for those with severe ARDS (GRADE 2B); we suggest against using high-dose steroids (GRADE 2C); and we recommend using low-dose steroids (GRADE 1B). The recommendations for pediatric patients with ARDS are as follows: we suggest against using non-invasive respiratory support (non-invasive positive pressure ventilation/high-flow nasal cannula oxygen therapy) (GRADE 2D), we suggest placing pediatric patients with moderate ARDS in the prone position (GRADE 2D), we suggest against routinely implementing NO inhalation therapy (GRADE 2C), and we suggest against implementing daily sedation interruption for pediatric patients with respiratory failure (GRADE 2D). Conclusions This article is a translated summary of the full version of the ARDS Clinical Practice Guideline 2021 published in Japanese (URL: https://www.jsicm.org/publication/guideline.html). The original text, which was written for Japanese healthcare professionals, may include different perspectives from healthcare professionals of other countries.

Aim The Bleeding Control Basic (BCon) course was developed by the American College of Surgeons to teach laypeople and health-care providers (HCPs) how to stop life-threatening bleeding. The first BCon course in Japan was held for HCPs in July 2018. Our study aimed to evaluate the utility of the course, the satisfaction and confidence level of the HCPs that participated, and their experience with using vascular tourniquets. Method The BCon participants were asked to complete a survey after the BCon courses from December 2018 to December 2019. These participants included different types of HCPs (physicians, nurses, and emergency medical technicians). After the course, the participants were asked to evaluate: (i) the perceived utility of the course, (ii) their satisfaction with the course, (iii) their confidence in the techniques that they learned in the course, (iv) their experience of using tourniquets in eight specific areas using a 10-point Likert scale. Results A total of 163 HCPs, including 108 physicians, 27 nurses, and 28 emergency medical technicians completed the BCon course. The respondents rated the course highly, showing an average value of approximately 9 for each item for perceived utility, satisfaction, confidence, and experience in using tourniquets. In particular, nurses rated the overall activity more highly than physicians (P

Background Strategies to optimize early trauma care have been introduced in Japan; however, detailed evaluation of the progress achieved has not been reported. Study Design In this retrospective observational study, patients registered in the Japanese nationwide trauma registry were stratified according to probability of survival (Ps) > 0.5 or ≤ 0.5, respectively. Mortality rates during the first 2 days and in-hospital mortality rates were compared between early (2004 to 2009) and late cohorts (2010 to 2014) in each group, using mixed effects logistic regression analysis. Improvement in mortality rates during the first 2 days among subgroups were also assessed. Results We analyzed 80,949 patients with Ps > 0.5 (early, 25,917; late, 55,032) and 8,898 patients with Ps ≤ 0.5 (early, 3,511; late, 5,387). Mortality rates during the first 2 days in both groups were significantly reduced (adjusted odds ratio [AOR; 95% CI] 0.61 [0.53 to 0.69] in the Ps > 0.5 group and 0.67 [0.60 to 0.76] in the Ps ≤ 0.5 group). In-hospital mortality rates in both groups were also significantly reduced (AOR [95% CI] 0.70 [0.64 to 0.76] and 0.73 [0.64 to 0.82], respectively). Significant improvements were observed in patients with a Revised Trauma Score ≥ 7 on arrival or an Abbreviated Injury Scale (AIS) of the abdomen ≥ 3. Limited improvements were observed in patients with head AIS ≥ 3 and in patients who underwent thoracotomy. Conclusions Although early trauma care has generally improved, specific progress was variable. Focused panel review of patients with severe head injury or undergoing thoracotomy may be an efficient strategy for further improvement.

The Japan Advanced Trauma Evaluation and Care (JATEC) education program was introduced in 2002. To examine its effect on the survival of trauma patients, we investigated changes in trauma mortality in Japan in the years after JATEC was introduced.We included patients registered in the Japan Trauma Databank (JTDB) from 2004 to 2011 with clear in-hospital mortality and sufficient data to estimate the Trauma Injury Severity Score (TRISS). Patients were grouped into the early (2004-2006), transition (2007-2008), and late (2009-2011) cohorts. We performed logistic regression analyses after adjusting for TRISS to estimate risk of death in the transition and late cohorts compared with the early cohort. Stratified logistic regression analyses showed which characteristics contributed to the changes in mortality.Of 94,664 patients registered in the JTDB, 47,095 were selected. Adjusted mortality was significantly lower in the late cohort (odds ratio = 0.68; 95% CI, 0.61-0.76) than in the early cohort (reference). Stratification analyses demonstrated significant interactions in patients with or without any chest or abdominal surgery (odds ratio = 0.83 vs 0.68; p0.001 in the late cohort) and in patients with TRISS probability of survival0.5 or ≥ 0.5 (odds ratio = 0.71 vs 0.67 for TRISS probability of survival ≥ 0.5; p0.001 in the late cohort).Since 2007, mortality has decreased in patients with mild trauma injury; however, mortality was significantly worse for severely injured patients or patients requiring surgical procedures. These findings suggest that definitive trauma care in Japan should be strengthened.