scholarly journals U-Shape Relationship between Plasma Leucine Level and Mortality in the Intensive Care Unit

2022 ◽  
Vol 2022 ◽  
pp. 1-9
Author(s):  
Mei-Ying Wang ◽  
Chao-Hung Wang ◽  
Wei-Siang Chen ◽  
Chien-Ming Chu ◽  
Huang-Ping Wu ◽  
...  

Patients in the intensive care unit (ICU) are at high risk of mortality which is not well predicted. Previous studies noted that leucine has prognostic value in a variety of diseases. This study investigated whether leucine concentration was a useful biomarker of metabolic and nutritional status and 6-month mortality in ICU. We recruited 454 subjects admitted to ICU (348 and 106 in the initiation and validation cohorts, respectively) with an acute physiology and chronic health evaluation (APACHE II) score ≥ 15 . We measured plasma leucine concentrations, traditional biomarkers, and calculated APACHE II and sequential organ failure assessment (SOFA) scores. Leucine levels were weakly correlated with albumin, prealbumin, and transferrin levels ( r = 0.30 , 0.12, and 0.15, p = 0.001 , 0.029, and 0.007, respectively). During follow-up, 116 (33.3%) patients died. Compared to patients with leucine levels between 109 and 174 μM, patients with leucine > 174   μ M or <109 μM had a lower cumulative survival rate. Death was also associated with age, higher APACHE II and SOFA scores, C-reactive protein, and longer stays in the ICU, but with lower albumin, prealbumin, and transferrin. Patients with leucine levels > 174   μ M had higher alanine aminotransferase levels, but no significant differences in other variables; patients with leucine levels < 109   μ M had higher APACHE II and SOFA scores, higher incidence of using inotropic agents, longer ICU and hospital stays, but lower albumin and transferrin levels. Multivariable analysis demonstrated that leucine > 174   μ M was an independent predictor of mortality, especially early mortality. However, among patients who stayed in ICU longer than two weeks, leucine < 109   μ M was an independent predictor of mortality. In addition, leucine < 109   μ M was associated with worse ventilator weaning profiles. These findings were similar in the validation cohort. Our study demonstrated a U-shape relationship between leucine levels and mortality rate in ICU.

2020 ◽  
Vol 10 (01) ◽  
pp. e1-e11
Author(s):  
Shereen A. Mohamed ◽  
Rabab ElHawary

AbstractIt is necessary to stratify the risk of pediatric patients at the time of intensive care unit (ICU) admission and to predict their outcomes. This helps to allocate the scarce ICU resources to start the appropriate treatment. The objective of this study was to evaluate the prognostic value of C-reactive protein/albumin ratio on admission to pediatric intensive care unit (PICU) in predicting mortality, PICU length of stay, the need for mechanical ventilation, and the use of inotropic drugs. This cohort study was conducted at Pediatric Cairo University Hospital. The study included 178 critically ill children. Pediatric Risk of Mortality–III (PRISM-III) score was calculated; CRP and serum albumin levels were assessed within 24 hours from admission. The median CRP/albumin ratio was significantly higher in nonsurvivors than survivors (18.60 and 4.65, respectively). The CRP/albumin ratio at a cutoff of ≥25.83 had significant discriminatory power in predicting mortality (area under the curve [AUC] = 0.795 and p < 0.001) with 85.4% accuracy. Furthermore, CRP/albumin ratio alone showed a comparable discriminatory power to that of PRISM-III score (AUCs = 0.795 and 0.793, respectively). A multivariable logistic regression analysis revealed that each unit of increase in the CRP/albumin ratio increased the risk of mortality by 1.075 (odds ratio [OR] = 1.075). CRP/albumin ratio showed a significantly higher median in ventilated (6.86) compared with non-ventilated (5.22) patients. Patients supported with inotropes showed significantly higher median CRP/albumin ratio (11.70 and 3.68, respectively). CRP/albumin ratio at admission to PICU was a good independent predictor of mortality.


Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 402
Author(s):  
Renée Blaauw ◽  
Daan G. Nel ◽  
Gunter K. Schleicher

Low and high plasma glutamine levels are associated with increased mortality. This study aimed to measure glutamine levels in critically ill patients admitted to the intensive care unit (ICU), correlate the glutamine values with clinical outcomes, and identify proxy indicators of abnormal glutamine levels. Patients were enrolled from three ICUs in South Africa, provided they met the inclusion criteria. Clinical and biochemical data were collected. Plasma glutamine was categorized as low (<420 µmol/L), normal (420–700 µmol/L), or high (>700 µmol/L). Three hundred and thirty patients (median age 46.8 years, 56.4% male) were enrolled (median APACHE II score) 18.0 and SOFA) score 7.0). On admission, 58.5% had low (median 299.5 µmol/L) and 14.2% high (median 898.9 µmol/L) plasma glutamine levels. Patients with a diagnosis of polytrauma and sepsis on ICU admission presented with the lowest, and those with liver failure had the highest glutamine levels. Admission low plasma glutamine was associated with higher APACHE II scores (p = 0.003), SOFA scores (p = 0.003), C-reactive protein (CRP) values (p < 0.001), serum urea (p = 0.008), and serum creatinine (p = 0.023) and lower serum albumin (p < 0.001). Low plasma glutamine was also associated with requiring mechanical ventilation and receiving nutritional support. However, it was not significantly associated with length of stay or mortality. ROC curve analysis revealed a CRP threshold value of 87.9 mg/L to be indicative of low plasma glutamine levels (area under the curve (AUC) 0.7, p < 0.001). Fifty-nine percent of ICU patients had low plasma glutamine on admission, with significant differences found between diagnostic groupings. Markers of infection and disease severity were significant indicators of low plasma glutamine.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ahmet Usta ◽  
Emin Gemcioglu ◽  
Salih Baser ◽  
Osman Ersoy ◽  
Yunus Halil Polat ◽  
...  

Abstract Objectives This study aimed to evaluate the relationship between C-reactive protein/albumin (CRP/Alb), neutrophil/lymphocyte (NLR), platelet/lymphocyte (PLR) ratios and the Acute Physiology And Chronic Health Evaluation II (APACHE II) score and 28-day mortality among 400 patients admitted to internal medicine and anesthesia reanimation intensive care unit (ICU). Methods This prospective study included a total of 400 patients who were admitted to hospital internal medicine and anesthesia reanimation ICUs. Results The most common reasons for ICU admission were pneumonia (29.3%), gastrointestinal bleeding (10.3%), acute exacerbation of chronic kidney disease (CKD) (10.3%), and acute kidney injury (7.5%). The comparison of the laboratory findings with survival outcomes revealed that among the patients with acute exacerbation of CKD, the median NLR (p=0.043) and median CRP/Alb (p=0.021) were significantly higher in patients who died. For all of the patients, the APACHE II score was positively correlated with CRP (p<0.001) and CRP/Alb (p<0.001), negatively correlated with Alb (p<0.001), positively correlated with the NLR (p<0.001), and positively correlated with the PLR. Conclusions The APACHE II score was significantly correlated with the CRP/Alb ratio, NLR, and PLR. The NLR and CRP/Alb ratio were statistically associated with mortality in patients hospitalized for acute exacerbation of CKD.


2017 ◽  
Vol 07 (01) ◽  
pp. 001-006 ◽  
Author(s):  
Qian Sng ◽  
Lu Zhang ◽  
Judith Ming Wong ◽  
Janil Puthucheary ◽  
Jan Lee ◽  
...  

AbstractLong-stay patients in the PICU have a higher risk of mortality as compared with non–long-stay patients. We aim to describe mortality and characteristics of long-stay patients and to determine the risk factors for mortality in these children. Total 241 (4.8%) long-stay admissions were identified. Mortality of long-stayers was 48/241 (20%). Higher severity-of-illness score at admission, need for organ support therapies, number of nosocomial infections, and bloodstream nosocomial infection were associated with a higher mortality in long-stay patients in the PICU. Based on multivariate analysis, oncologic diagnosis as a preexisting comorbidity is a strong independent predictor of mortality for long-stay patients.


Infection ◽  
2021 ◽  
Author(s):  
A. Oliva ◽  
G. Ceccarelli ◽  
C. Borrazzo ◽  
M. Ridolfi ◽  
G. D.’Ettorre ◽  
...  

Abstract Background Little is known in distinguishing clinical features and outcomes between coronavirus disease-19 (COVID-19) and influenza (FLU). Materials/methods Retrospective, single-centre study including patients with COVID-19 or FLU pneumonia admitted to the Intensive care Unit (ICU) of Policlinico Umberto I (Rome). Aims were: (1) to assess clinical features and differences of patients with COVID-19 and FLU, (2) to identify clinical and/or laboratory factors associated with FLU or COVID-19 and (3) to evaluate 30-day mortality, bacterial superinfections, thrombotic events and invasive pulmonary aspergillosis (IPA) in patients with FLU versus COVID-19. Results Overall, 74 patients were included (19, 25.7%, FLU and 55, 74.3%, COVID-19), median age 67 years (58–76). COVID-19 patients were more male (p = 0.013), with a lower percentage of COPD (Chronic Obstructive Pulmonary Disease) and chronic kidney disease (CKD) (p = 0.001 and p = 0.037, respectively) than FLU. SOFA score was higher (p = 0.020) and lymphocytes were significantly lower in FLU than in COVID-19 [395.5 vs 770.0 cells/mmc, p = 0.005]. At multivariable analysis, male sex (OR 6.1, p < 0.002), age > 65 years (OR 2.4, p = 0.024) and lymphocyte count > 725 cells/mmc at ICU admission (OR 5.1, p = 0.024) were significantly associated with COVID-19, whereas CKD and COPD were associated with FLU (OR 0.1 and OR 0.16, p = 0.020 and p < 0.001, respectively). No differences in mortality, bacterial superinfections and thrombotic events were observed, whereas IPA was mostly associated with FLU (31.5% vs 3.6%, p = 0.0029). Conclusions In critically ill patients, male sex, age > 65 years and lymphocytes > 725 cells/mmc are related to COVID-19. FLU is associated with a significantly higher risk of IPA than COVID-19.


2018 ◽  
Vol 7 (2) ◽  
pp. e000239 ◽  
Author(s):  
Krishna Aparanji ◽  
Shreedhar Kulkarni ◽  
Megan Metzke ◽  
Yvonne Schmudde ◽  
Peter White ◽  
...  

Delirium is a key quality metric identified by The Society of Critical Care Medicine for intensive care unit (ICU) patients. If not recognised early, delirium can lead to increased length of stay, hospital and societal costs, ventilator days and risk of mortality. Clinical practice guidelines recommend ICU patients be assessed for delirium at least once per shift. An initial audit at our urban tertiary care hospital in Illinois, USA determined that delirium assessments were only being performed 31% of the time. Nurses completed simulation based education and were trained using delirium screening videos. After the educational sessions, delirium documentation increased from 40% (12/30) to 69% (41/59) (two-proportion test, p<0.01) for dayshift nurses and from 27% (8/30) to 61% (36/59) (two-proportion test, p<0.01) during the nightshift. To further increase the frequency of delirium assessments, the delirium screening tool was standardised and a critical care progress note was implemented that included a section on delirium status, management strategy and discussion on rounds. After the documentation changes were implemented, delirium screening during dayshift increased to 93% (75/81) (two-proportion test, p<0.01). Prior to this project, physicians were not required to document delirium screening. After the standardised critical care note was implemented, documentation by physicians was 95% (106/111). Standardising delirium documentation, communication of delirium status on rounds, in addition to education, improved delirium screening compliance for ICU patients.


2005 ◽  
Vol 22 (Supplement 34) ◽  
pp. 169
Author(s):  
K. Desa ◽  
Z. Zupan ◽  
B. Krstulovic ◽  
V. Golubovic ◽  
A. Sustic

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