Kyohei Miyamoto

Effect of Dexmedetomidine on Mortality and Ventilator-Free Days in Patients Requiring Mechanical Ventilation With Sepsis: A Randomized Clinical Trial.

Importance Dexmedetomidine provides sedation for patients undergoing ventilation; however, its effects on mortality and ventilator-free days have not been well studied among patients with sepsis. Objectives To examine whether a sedation strategy with dexmedetomidine can improve clinical outcomes in patients with sepsis undergoing ventilation. Design, Setting, and Participants Open-label, multicenter randomized clinical trial conducted at 8 intensive care units in Japan from February 2013 until January 2016 among 201 consecutive adult patients with sepsis requiring mechanical ventilation for at least 24 hours. Interventions Patients were randomized to receive either sedation with dexmedetomidine (n = 100) or sedation without dexmedetomidine (control group; n = 101). Other agents used in both groups were fentanyl, propofol, and midazolam. Main Outcomes and Measures The co–primary outcomes were mortality and ventilator-free days (over a 28-day duration). Sequential Organ Failure Assessment score (days 1, 2, 4, 6, 8), sedation control, occurrence of delirium and coma, intensive care unit stay duration, renal function, inflammation, and nutrition state were assessed as secondary outcomes. Results Of the 203 screened patients, 201 were randomized. The mean age was 69 years (SD, 14 years); 63% were male. Mortality at 28 days was not significantly different in the dexmedetomidine group vs the control group (19 patients [22.8%] vs 28 patients [30.8%]; hazard ratio, 0.69; 95% CI, 0.38-1.22; P = .20). Ventilator-free days over 28 days were not significantly different between groups (dexmedetomidine group: median, 20 [interquartile range, 5-24] days; control group: median, 18 [interquartile range, 0.5-23] days; P = .20). The dexmedetomidine group had a significantly higher rate of well-controlled sedation during mechanical ventilation (range, 17%-58% vs 20%-39%; P = .01); other outcomes were not significantly different between groups. Adverse events occurred in 8 (8%) and 3 (3%) patients in the dexmedetomidine and control groups, respectively. Conclusions and Relevance Among patients requiring mechanical ventilation, the use of dexmedetomidine compared with no dexmedetomidine did not result in statistically significant improvement in mortality or ventilator-free days. However, the study may have been underpowered for mortality, and additional research may be needed to evaluate this further. Trial Registration clinicaltrials.gov Identifier: NCT01760967

Plasmapheresis therapy has no triglyceride-lowering effect in patients with hypertriglyceridemic pancreatitis.

Kyohei Miyamoto, Masayasu Horibe, Masamitsu Sanui, Mitsuhito Sasaki, Daisuke Sugiyama, Seiya Kato, Takahiro Yamashita, Takashi Goto, Eisuke Iwasaki, Kunihiro Shirai, Kyoji Oe, Hirotaka Sawano, Takuya Oda, Hideto Yasuda, Yuki Ogura, Kaoru Hirose, Katsuya Kitamura, Nobutaka Chiba, Tetsu Ozaki, Taku Oshima, Tomonori Yamamoto, Keiji Nagata, Tetsuya Mine, Koji Saito, Motohiro Sekino, Tomoki Furuya, Naoyuki Matsuda, Mineji Hayakawa, Takanori Kanai and Toshihiko Mayumi

The Association Between Sequential Organ Failure Assessment Scores and Mortality in Patients With Sepsis During the First Week: The JSEPTIC DIC Study:

Objective: Predicting prognosis is a complex process, particularly in patients with severe sepsis or septic shock. This study aimed to determine the relationship between the Sequential Organ Failure Assessment (SOFA) scores for individual organs during the first week of admission and the in-hospital mortality in patients with sepsis. Methods: This study was a post hoc evaluation of the Japan Septic Disseminated Intravascular Coagulation study and included patients admitted to 42 intensive care units in Japan for severe sepsis or septic shock, between January 2011 and December 2013. We assessed the relationship between the organ and total SOFA scores on days 1, 3, and 7 following admission and the in-hospital mortality using logistic regression analysis. Results: We evaluated 2732 patients and found the in-hospital mortality rate was 29.1%. The mean age of the patients (standard deviation) was 70.5 (14.1) years, and the major primary site of infection was the abdomen (33.6%). The central nervous system (CNS) SOFA score exhibited the strongest relationship with mortality on days 1 (adjusted odds ratio [aOR]: 1.49, 95% confidence interval [CI]: 1.40-1.59), 3 (aOR: 1.75, 95% CI: 1.62-1.89), and 7 (aOR: 1.93, 95% CI: 1.77-2.10). The coagulation SOFA scores showed a weak correlation with mortality on day 1, but a strong correlation with mortality on day 7 (aOR: 2.04, 95% CI: 1.87-2.24). Conclusions: The CNS SOFA scores were associated with mortality in patients with severe sepsis on days 1, 3, and 7 following hospitalization. The coagulation SOFA score was associated with mortality on day 7. In clinical situations, the CNS SOFA scores during the acute phase and the CNS SOFA and coagulation SOFA scores during the subsequent phases should be evaluated in order to determine patient prognosis.

Mortality Effects of Prolonged Hemoperfusion Therapy Using a Polymyxin B-Immobilized Fiber Column for Patients with Septic Shock: A Sub-Analysis of the DESIRE Trial

Background/Aims: The optimal duration of hemoperfusion therapy with a polymyxin B-immobilized fiber column has not yet been verified. Methods: This analysis examined whether hemoperfusion therapy with a polymyxin B-immobilized fiber column lasting longer than 2 h (prolonged polymyxin) improved outcomes for patients with septic shock compared to 2-h polymyxin therapy (sub-analysis of data from the DESIRE trial). Results: The 2-h and prolonged polymyxin groups contained 22 and 14 patients, respectively. Both groups had similar characteristics. The polymyxin duration per session in the prolonged polymyxin group was significantly longer (median, 5.5 h) than in the 2-h polymyxin group (p < 0.01). The 28-day mortality rate was significantly higher in the 2-h polymyxin group (7, 31.8%) than in the prolonged polymyxin group (0, 0%; p = 0.019). Conclusion: Prolonged polymyxin therapy might be associated with better clinical outcomes than 2-h polymyxin therapy in patients with septic shock. Video Journal Club “Cappuccino with Claudio Ronco” at http://www.karger.com/?doi=491744.

Prehospital quick sequential organ failure assessment as a tool to predict in-hospital mortality

Objective This study aimed to evaluate the predictive ability of quick sequential organ failure assessment (qSOFA) score for in‐hospital mortality among patients transported by physician‐staffed helicopters. Methods We conducted a single‐center, retrospective observational study using the physician‐staffed helicopter registry data between 2003 and 2016. We calculated the qSOFA scores based on the patients’ vital signs, which were measured on the scene. The tools discriminatory ability was determined using the area under the curve of the receiver operating characteristic. Results A total of 1849 patients with a mean age of 63.0 (standard deviation [SD], 18.4) years were included in this study. The diagnostic categories included were trauma and nontrauma cases (1038 [56%] and 811 [44%], respectively). In‐hospital mortality was documented in 169 (9%) patients. Meanwhile, the in‐hospital mortality rates among patients with qSOFA scores of 0, 1, 2, and 3 were 5/411 (1%), 69/797 (9%), 71/541 (13%), and 24/100 (24%), respectively (P < 0.0001 for trend). If the cutoff point is ≥1, the sensitivity and specificity of the qSOFA scores were 0.97 and 0.24, respectively. The area under the curve of the qSOFA scores was 0.67 for all patients, whereas that for trauma patients was 0.75. Conclusion An increase in the qSOFA score is associated with a gradual increase in the in‐hospital mortality rate among all patients. In particular, a very low mortality rate was observed among patients with a qSOFA score of 0. The qSOFA score predicted the in‐hospital mortality of patients with trauma well.

Adherence rate of quality-of-care indicators for Staphylococcus aureus bacteremia is extremely low in Japanese emergency and critical care departments: a multicenter retrospective observational study

Staphylococcus aureus bacteremia causes significant morbidity and mortality and requires specific management to prevent complications. Most studies evaluating quality of care have been carried out in Europe and North America, and accurate epidemiological data are lacking in Asia. We aimed to describe the epidemiology and evaluate the quality of care for S. aureus bacteremia in Japan.

Additional file 1: Table S1. of Prolonged direct hemoperfusion using a polymyxin B immobilized fiber cartridge provides sustained circulatory stabilization in patients with septic shock: a retrospective observational before-after study

The catecholamine usage and dosing within 12 h from starting PMX-DHP. Table S2. Time course of the urine output within 12 h after starting PMX-DHP. Table S3. Time course of the serum lactate and PaO2/FiO2 ratio within 12 h after starting PMX-DHP. Table S4. The SOFA score during one week after the first PMX-DHP session. (DOCX 27 kb)