Acute and Critical Care最新文献

Background: Systemic inflammation following cardiopulmonary bypass (CPB) can interfere with analysis of routine clinical and biochemical parameters. Procalcitonin (PCT) is a potential biomarker for diagnosing early postoperative sepsis in pediatric patients following cardiac surgery utilizing CPB. This study aimed to evaluate the diagnostic accuracy of PCT compared to other biomarkers, especially C-reactive protein (CRP), in this clinical setting.

Methods: A prospective single-center study was conducted over a 10-month period during the coronavirus disease 2019 (COVID-19) pandemic (2021-2022), enrolling 89 pediatric patients postcardiac surgery. PCT, CRP, and complete blood count were analyzed, and area under the curve (AUC) was employed for statistical analysis.

Results: PCT and CRP demonstrated moderate discriminatory ability with AUCs of 0.678 and 0.635, respectively. White cell count exhibited fair discriminatory power, and platelet count performed poorly in distinguishing septic from nonseptic cases (AUC: white cell count, 0.545; platelet, 0.486).

Conclusions: PCT and CRP hold promise as diagnostic markers for early postoperative sepsis in pediatric cardiac surgery patients. However, these biomarkers are not adequate standalone indicators, emphasizing the continued need for clinical judgment supported by multiple diagnostic parameters.

Background: Real-time ultrasound-guided catheterization of the internal jugular vein (IJV) is widely used for its safety and high success rate. However, it becomes difficult when the IJV's cross-sectional area (CSA) is reduced. A reported technique applies manual pressure (with fingers) to the supraclavicular IJV to impede venous return and enlarge the distal CSA. While effective in previous studies, its clinical utility remains unclear, as those studies involved only healthy volunteers and used blind technique. Therefore, this study aimed to evaluate the efficacy of our novel ultrasound-guided compression of the proximal IJV.

Methods: In this prospective observational study, 25 hospitalized patients were included. Two ultrasound machines were used: one to visualize the CSA of the distal IJV, and the other to apply and guide compression of the supraclavicular IJV, ensuring real-time confirmation of venous occlusion. Patients were asked about pain during the compression procedure. The primary outcome was the degree of dilation at the puncture site of the IJV.

Results: All 25 patients (mean Sequential Organ Failure Assessment score: 5.2±3.6) completed the study. Supraclavicular IJV compression resulted in a significant increase in the CSA of the distal IJV by approximately 150%, from 0.4±0.3 cm² to 1.0±0.3 cm² (P<0.001). No patient reported any pain during the procedure.

Conclusions: Ultrasound-guided supraclavicular IJV compression significantly increased the CSA of the distal IJV in hospitalized patients. This method enhances vein visibility by increasing IJV volume, potentially improving the success and safety of central venous catheterization.

Background: Multi-organ distress syndrome (MODS) causes morbidity in patients with trauma. This study evaluates the effectiveness of interleukin-33 (IL-33), which reflects tissue damage and the inflammatory response, as a MODS indicator in patients with trauma.

Methods: Patients with trauma admitted to our trauma center between July 2022 and July 2023 were included. IL-33 levels were measured in blood samples for 4 days. Correlations with clinical and laboratory indicators, including initial IL-33 levels, were analyzed to identify independent predictors of MODS.

Results: Among the 87 patients enrolled, 20 developed MODS. Initial IL-33 levels were elevated in the MODS group, compared with the non-MODS group. In the non-MODS group, IL-33 levels increased on day 1 and then declined, whereas in the MODS group, IL-33 levels were highest at admission (day 0) and decreased continuously through day 3. In patients with detectable initial IL-33 levels, the measured levels correlated with higher Abbreviated Injury Scale 5 scores and the Injury Severity Score (ISS). A logistic regression analysis revealed the ISS and delta neutrophil index as factors contributing to MODS progression.

Conclusions: The findings suggest that initial IL-33 levels are elevated in the MODS group, compared with non-MODS group, and exhibit a rapidly declining trend, showing an initial association with MODS that was not maintained in a multivariate analysis. These findings suggest that IL-33 might have relevance in assessing trauma severity; however, further validation is required before it can be considered a biomarker for MODS.

Background: The utility of various adjunctive therapies, including high-flow nasal cannula (HFNC) and bilevel positive airway pressure, to treat severe asthma attacks and avoid invasive mechanical ventilation has recently been investigated. HFNC in particular has received attention as a viable potential alternative to mechanical ventilation. Our goal with this review was to evaluate and compare the clinical outcomes of HFNC with those achieved using conventional oxygen therapy or other non-invasive ventilation (NIV) methods in severe asthma attacks.

Methods: A comprehensive search was conducted of multiple databases, including PubMed/Medline, Scopus, Cochrane Library, and gray literature repositories, for articles published from August 25, 2014, to August 25, 2024. Results of meta-analysis using a random-effects model are presented in a forest plot. Study quality was assessed using the Cochrane Risk of Bias tool (ROB-2) and Newcastle-Ottawa Scale. This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 criteria and was registered in the International Prospective Register of Systematic Reviews (PROSPERO) (CRD42024558656).

Results: Nine studies involving 14,606 subjects were included in this meta-analysis. Pulmonary scores tended to improve with HFNC therapy, but this improvement did not reach statistical significance (P>0.05). Pediatric intensive care unit (PICU) admission rates and need for escalation of support did not significantly differ from those of standard oxygen therapy or other NIV modalities. HFNC therapy led to a modest but significant increase in readmission (odds ratio, 3.14; 95% CI, 1.07-9.24; P=0.04). PICU length-of-stay was comparable across groups, and mortality among HFNC-treated patients remained less than 1%. Overall evidence quality ranged from very low to low.

Conclusions: HFNC therapy did not result in superior outcomes over standard oxygen therapy and other NIV modalities. Current evidence, however, was of low quality, highlighting the need for further research.

Background: This study investigated the characteristics of mechanically ventilated patients in South Korean intensive care units (ICUs).

Methods: We conducted a subgroup analysis of a multinational observational study. Data from 271 mechanically ventilated patients in South Korean ICUs were analyzed for demographics, ventilation practices, and mortality, and were compared with those of 327 patients from other high-income Asian countries.

Results: South Korean patients were older (mean age: 67 vs. 62 years, P<0.001) and had lower ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (255.5 vs. 306.2, P<0.001). South Korean ICUs exhibited higher patient-to-nurse ratios (2.6 vs. 1.9, P<0.001) and more beds per unit (20.5 vs. 16.0, P=0.017). The use of sufficient positive end-expiratory pressure for patients (PEEP) for acute respiratory distress syndrome (ARDS) was less frequent in South Korea (62.2% vs. 91.2%, P=0.005). Mortality rates were similar between South Korean patients and those in other high-income Asian countries (38.0% vs. 34.2%, P=0.401). Significant mortality predictors in South Korea included age ≥65 years (odds ratio [OR], 4.03; P=0.039) and a Sequential Organ Failure Assessment score ≥8 (OR, 2.36; P=0.031). The presence of respiratory therapists was associated with reduced mortality (OR, 0.52; P=0.034).

Conclusions: Despite higher age and patient-to-nurse ratios in South Korean ICUs, outcomes were comparable to those in other high-income Asian countries. The suboptimal use of sufficient PEEP with ARDS indicates potential areas for improvement. Additionally, the beneficial impact of respiratory therapists on mortality rates warrants further investigation.

Background: The ongoing medical crisis in Korea has severely impacted the operational environment of intensive care units (ICU), posing significant challenges to quality care for critically ill patients. This study aimed to evaluate the effects of the ongoing crisis on ICUs.

Methods: A survey was conducted in July 2024 among intensivists in charge of ICUs at institutions accredited by the Korean Society of Critical Care Medicine for critical care. The survey compared data from January 2024 (pre-crisis) and June 2024 (post-crisis) on the number ICU beds, staffing composition, work hours, and the number and roles of nurse practitioners.

Results: Among the total of 71 participating ICUs, 22 experienced a reduction in the number of operational beds, with a median decrease of six beds per unit, totaling 127 beds across these ICUs. The numbers of residents and interns decreased from an average of 2.3 to 0.1 per ICU, and the average weekly working hours of intensivists increased from 62.3 to 78.8 hours. Nurse practitioners helped fill staffing gaps, with their numbers rising from 150 to 242 across ICUs, and their scope of practice expanded accordingly.

Conclusions: The medical crisis has led to major changes in the critical care system, including staffing shortages, increased workloads, and an expanded role for nurse practitioners. This is a critical moment to foster interest and engage in active discussions aimed at creating a sustainable and resilient ICU system.