Journal of critical care
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Journal of critical care · Feb 2025
Multicenter Study Observational StudyClinical phenotyping of septic shock with latent profile analysis: A retrospective multicenter study.
Septic shock (SS) is a highly fatal and heterogeneous syndrome. Identifying distinct clinical phenotypes provides valuable insights into the underlying pathophysiological mechanisms and may help to propose precise clinical management strategies. ⋯ The individualized identification of phenotypes is well suited to clinical practice. The three SS phenotypes differed significantly in pathophysiological and clinical outcomes, which are crucial for informing management decisions and prognosis.
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Journal of critical care · Feb 2025
Feasibility of estimating tidal volume from electrocardiograph-derived respiration signal and respiration waveform.
Estimating tidal volume (VT) from electrocardiography (ECG) can be quite useful during deep sedation or spinal anesthesia since it eliminates the need for additional monitoring of ventilation. This study aims to validate and compare VT estimation methodologies based on ECG-derived respiration (EDR) using real-world clinical data. ⋯ Although EDR-based VT estimation is promising, current methodologies are limited by noisy ICU ECG signals, but controlled environment data showed significant short-term correlations with measured respiration waveforms. Future studies should develop reliable EDR extraction procedures and improve predictive models to broaden clinical applications.
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Journal of critical care · Feb 2025
Multicenter Study Comparative Study Observational StudyA tidal volume of 7 mL/kg PBW or higher may be safe for COVID-19 patients.
The novel coronavirus disease (COVID-19) has revived the debate on the optimal tidal volume during acute respiratory distress syndrome (ARDS). Some experts recommend 6 mL/kg of predicted body weight (PBW) for all patients, while others suggest 7-9 mL/kg PBW for those with compliance >50 mL/cmH2O. We investigated whether a tidal volume ≥ 7 ml/kg PBW may be safe in COVID-19 patients, particularly those with compliance >50 mL/cmH2O. ⋯ A tidal volume ≥ 7 (up to 9) mL/kg PBW was associated with lower ICU mortality in these COVID-19 patients, including those with compliance <40 mL/cmH2O. This finding should be interpreted cautiously due to the retrospective study design.
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Journal of critical care · Feb 2025
Malnutrition in survivors of critical illness and long-term survival outcomes: A cohort study.
This study aimed to determine the prevalence of malnutrition and associated risk factors among intensive care unit (ICU) survivors and to investigate whether malnutrition after ICU admission is associated with long-term survival outcomes. ⋯ Malnutrition within 1 year of ICU admission was reported in 8.1 % of survivors. Notably, malnutrition after ICU admission was associated with an increased risk of mortality between 1 and 5 years after ICU admission among ICU survivors.
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Journal of critical care · Feb 2025
Postoperative oliguria after intermediate and high-risk surgeries in critical care, A cohort analysis.
Oliguria is commonly used as a cutoff for acute kidney injury (AKI), however, a decrease in urine output is common during surgery and may represent an adaptative response in the perioperative setting rather than a reduction in glomerular filtration rate, leading to a possible overestimation of postoperative AKI incidence. Although this dilemma has been addressed in the intraoperative scenario, the incidence and impact of oliguria in the first postoperative day represents a gap in the current literature. Our main goal is to describe the incidence, risk factors and clinical outcomes related to postoperative oliguria. ⋯ Postoperative oliguria is common after intermediate and high-risk surgical procedures and increases the risk of AKI. However, oliguria was largely unrelated with kidney disfunction measured by serum creatinine (87,6 %), raising doubts on whether diuresis overestimates AKI incidence in the postoperative setting.