Association of Relative Dysglycemia With Hospital Mortality in Critically Ill Patients: A Retrospective Study.

OBJECTIVES: Relative dysglycemia has been proposed as a clinical entity among critically ill patients in the ICU, but is not well studied. This study aimed to clarify associations of relative hyperglycemia and hypoglycemia during the first 24 hours after ICU admission with in-hospital mortality and the respective thresholds. DESIGN: A single-center retrospective study. SETTING: An urban tertiary hospital ICU. PATIENTS: Adult critically ill patients admitted urgently between January 2016 and March 2022. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Maximum and minimum glycemic ratio (GR) was defined as maximum and minimum blood glucose values during the first 24 hours after ICU admission divided by hemoglobin A1c-derived average glucose, respectively. Of 1700 patients included, in-hospital mortality was 16.9%. Nonsurvivors had a higher maximum GR, with no significant difference in minimum GR. Maximum GR during the first 24 hours after ICU admission showed a J-shaped association with in-hospital mortality, and a mortality trough at a maximum GR of approximately 1.12; threshold for increased adjusted odds ratio for mortality was 1.25. Minimum GR during the first 24 hours after ICU admission showed a U-shaped relationship with in-hospital mortality and a mortality trough at a minimum GR of approximately 0.81 with a lower threshold for increased adjusted odds ratio for mortality at 0.69. CONCLUSIONS: Mortality significantly increased when GR during the first 24 hours after ICU admission deviated from between 0.69 and 1.25. Further evaluation will necessarily validate the superiority of personalized glycemic management over conventional management.

The Association Between Early Administration of Noninvasive Ventilation and Short-Term Outcome for Acute Heart Failure.

Background Acute decompensated heart failure (ADHF) is a life-threatening disease that requires emergent intervention. Although noninvasive positive pressure ventilation (NPPV) is crucial for treating ADHF, the earliest time point for administering NPPV remains unknown. In this study, we hypothesized that early NPPV administration for patients with acute heart failure in the emergency department (ED) would lead to a better outcome. Methodology This is a single-center retrospective cohort study at an ED of a community hospital in Japan. The data were collected from consecutive patients who were administered NPPV for ADHF in the ED from April 2016 to September 2018. The primary exposure was the timing of NPPV administration (within 30 minutes versus over 30 minutes after arrival). The primary outcome was 30-day mortality. Results A total of 115 patients were included in this study. Overall, the median age was 78 (interquartile range [IQR] = 70-84 years), and 63 (54.9%) patients were male. The median time from the arrival at the ED to NPPV administration for the patients was 14 minutes (IQR = 8-30 minutes). Overall, 72% (83/115) of the patients were categorized as early administration group (<30 minutes). The total 30-day mortality was 7.0% (8/115), and the total tracheal intubation rate was 11% (13/115). Early NPPV administration for patients with ADHF was associated with lower 30-day mortality (3.6% vs. 16%; p = 0.04) and shorter length of oxygenation (four days vs. seven days; p < 0.01). Multivariate logistic regression test showed that 30-day mortality was significantly lower in the early treatment group (adjusted odds ratio = 0.19; 95% confidential interval = 0.04-0.90). Conclusions Although further investigation is needed, early NPPV administration for patients with ADHF in the ED was associated with lower 30-day mortality.

Validation of the PECARN head trauma prediction rules in Japan: A multicenter prospective study.

BACKGROUND: Head trauma in children is one of the most common causes for emergency department visits. Although most trauma cases are minor, identifying those patients who have clinically important traumatic brain injury (ciTBI) is challenging. The Pediatric Emergency Care Applied Research Network (PECARN) head trauma prediction rules identifying children who do not require cranial computed tomography (CT) were validated and are used all over the world. However, these rules have not been validated with large cohort multicenter studies in Asia. OBJECTIVES: To investigate whether the PECARN rules can be safely applied to Japanese children. METHODS: We conducted a multicenter, prospective, observational cohort study. We included children younger than 16 with minor head trauma (Glasgow Coma Scale ≥14) who presented to the six participating centers within 24 h of their injuries between June 2016 and September 2017. The primary analysis was set to calculate the negative predictive value of the patients with very low risk by the PECARN rules, compared with a preset threshold of 99.85%. RESULTS: We included 6585 children of which 463 (7.0%) had head CT scans performed and 23 (0.35%) had ciTBI. There were two patients with ciTBI who were classified as very low risk. The negative predictive value, calculated as 99.96% (95%CI: 99.86-100.00; P = .019), was significantly superior compared with the preset threshold of 99.85%. CONCLUSIONS: The PECARN head trauma prediction rules seemed to be safely applicable to Japanese children. Further studies are needed to determine safety in hospitals where physicians do not have expertise in managing children.

Characterization of polymer-polymer type charge-transfer (CT) blend membranes for fuel cell application.

The data presented in this article are related to polymer-polymer type charge-transfer blend membranes for fuel cell application. The visible spectra of the charge-transfer (CT) blend membranes indicated formation of CT complex in the blend membranes, and behavior of CT complex formation by polymers was clarified by Job plot of the visible spectra. The effect of fluorine for membrane property and fuel cell performance of CT blend membranes were evaluated by 19F NMR and overvoltage analysis, respectively.

Biphenylene-substituted ruthenocenylphosphine for Suzuki-Miyaura coupling of sterically hindered aryl bromides.

A highly general, active, and stable catalytic system was realized in the palladium-catalyzed Suzuki-Miyaura reactions of sterically hindered aryl bromides with arylboronic acids using biphenylene-substituted di-tert-butylruthenocenylphosphine (R-Phos) as a supporting ligand.

Biphenylene-substituted ruthenocenylphosphine for Suzuki-Miyaura coupling of aryl chlorides.

High activity in the palladium-catalyzed Suzuki-Miyaura reactions of aryl chlorides with arylboronic acids was furnished using biphenylene-substituted di- tert-butylruthenocenylphosphine (R-Phos) as a supporting ligand. Substrate combinations even for the construction of highly hindered tetra- ortho-substituted biaryls can be achieved in good to excellent yields with low catalyst loadings in short reaction times.