Dose–response association between fluid overload and in-hospital mortality in critically ill patients: a multicentre, prospective, observational cohort study

ObjectivesFluid management is important in ensuring haemodynamic stability in critically ill patients, but can easily lead to fluid overload (FO). However, the optimal fluid balance plot or range for critically ill patients is unknown. This study aimed to explore the dose–response relationship between FO and in-hospital mortality in critically ill patients.DesignMulticentre, prospective, observational study.SettingEighteen intensive care units (ICUs) of 16 tertiary hospitals in China.ParticipantsCritically ill patients in the ICU for more than 3 days.Primary outcome measures and analysesFO was defined as the ratio of the cumulative fluid balance (L) and initial body weight (kg) on ICU admission, expressed as a percentage. Maximum FO was defined as the peak value of FO during the first 3 days of ICU admission. Logistic regression models with restricted cubic splines were used to explore the pattern and magnitude of the association between maximum FO and risk of in-hospital mortality. Age, sex, Acute Physiology and Chronic Health Evaluation II score, Sequential Organ Failure Assessment score on admission, main diagnosis on admission to ICU, comorbidities, time of maximum FO, mechanical ventilation, renal replacement therapy, use of vasopressors and centres were adjusted in multivariable analysis.ResultsA total of 3850 patients were included in the study, 929 (24.1%) of whom died in the hospital. For each 1% L/kg increase in maximum FO, the risk of in-hospital mortality increased by 4% (adjusted HR (aHR) 1.04, 95% CI 1.03 to 1.05, p<0.001). A maximum FO greater than 10% was associated with a 44% increased HR of in-hospital mortality compared with an FO less than 5% (aHR 1.44, 95% CI 1.27 to 1.67). Notably, we found a non-linear dose–response association between maximum FO and in-hospital mortality.ConclusionsBoth higher and negative fluid balance levels were associated with an increased risk of in-hospital mortality in critically ill patients.Trial registration numberChiCTR-ECH-13003934.

Download Full-text

The dose - response association between fluid overload and hospital mortality in critically ill patients: a multicenter, prospective, observational cohort study

10.21203/rs.2.20792/v1 ◽

2020 ◽

Author(s):

Meiping Wang ◽

Bo Zhu ◽

Li Jiang ◽

Ying Wen ◽

Bin Du ◽

...

Keyword(s):

Hospital Mortality ◽

Critically Ill ◽

Dose Response ◽

Fluid Balance ◽

Critically Ill Patients ◽

Fluid Overload ◽

Fluid Management ◽

Management Strategies ◽

Icu Admission ◽

Increased Risk

Abstract Background Fluid management is important for ensuring hemodynamic stability in critically ill patients but easily leads to fluid overload. However, the optimal fluid balance plot or range for critically ill patients is unknown. This study aimed to explore the dose-response relationship between fluid overload (FO) and hospital mortality in critically ill patients.Methods Data were derived from the China Critical Care Sepsis Trial (CCCST). Patients with sequential fluid data for the first 3 days of admission to the ICU were included. FO was expressed as the ratio of the cumulative fluid balance (L) and initial body weight (kg) at ICU admission as a percentage. Maximum fluid overload (MFO) was defined as the peak FO value during the first 3 days of ICU admission. We used logistic regression models with restricted cubic splines to assess the relationship between MFO and the risk of hospital mortality.ResultsIn total, 3850 patients were included, 929 (24.1%) of whom died in hospital. For each 1% L/kg increase in the FO, the risk of hospital mortality increased by 4% (HR 1.04, 95% CI 1.03 - 1.05, P < 0.001). FO greater than 10% was associated with a 44% increased HR of hospital mortality compared with FO less than 5% (HR 1.44, 95% CI 1.27 - 1.67). Notably, we also found a non-linear dose-response association between MFO and hospital mortality.Conclusions Both higher and lower fluid balance were associated with an increased risk of hospital mortality. Further studies should explore this relationship and seek for the optimal fluid management strategies for critically ill patients.

Download Full-text

Medication Regimen Complexity Score as an Indicator of Fluid Balance in Critically Ill Patients

Journal of Pharmacy Practice ◽

10.1177/0897190021999792 ◽

2021 ◽

pp. 089719002199979

Author(s):

William J. Olney ◽

Aaron M. Chase ◽

Sarah A. Hannah ◽

Susan E. Smith ◽

Andrea Sikora Newsome

Keyword(s):

Critically Ill ◽

Fluid Balance ◽

Critically Ill Patients ◽

Fluid Overload ◽

Medication Regimen ◽

Icu Admission ◽

Medication Regimen Complexity ◽

Increased Risk ◽

Regimen Complexity ◽

The Relationship

Background: Critically ill patients are at increased risk for fluid overload, but objective prediction tools to guide clinical decision-making are lacking. The MRC-ICU scoring tool is an objective tool for measuring medication regimen complexity. Objective: To evaluate the relationship between MRC-ICU score and fluid overload in critically ill patients. Methods: In this multi-center, retrospective, observational study, the relationship between MRC-ICU and the risk of fluid overload was examined. Patient demographics, fluid balance at day 3 of ICU admission, MRC-ICU score at 24 hours, and clinical outcomes were collected from the medical record. The primary outcome was relationship between MRC-ICU and fluid overload. To analyze this, MRC-ICU scores were divided into tertiles (low, moderate, high), and binary logistic regression was performed. Linear regression was performed to determine variables associated with positive fluid balance. Results: A total of 125 patients were included. The median MRC-ICU score at 24 hours of ICU admission for low, moderate, and high tertiles were 9, 15, and 21, respectively. For each point increase in MRC-ICU, a 13% increase in the likelihood of fluid overload was observed (OR 1.128, 95% CI 1.028-1.238, p = 0.011). The MRC-ICU score was positively associated with fluid balance at day 3 (β-coefficient 218.455, 95% CI 94.693-342.217, p = 0.001) when controlling for age, gender, and SOFA score. Conclusions: Medication regimen complexity demonstrated a weakly positive correlation with fluid overload in critically ill patients. Future studies are necessary to establish the MRC-ICU as a predictor to identify patients at risk of fluid overload.

Download Full-text

Association between Latent Trajectories of Fluid Balance and Clinical Outcomes in Critically Ill Patients with Acute Kidney Injury: A Prospective Multicenter Observational Study

Kidney Diseases ◽

10.1159/000515533 ◽

2021 ◽

pp. 1-11

Author(s):

Meiping Wang ◽

Bo Zhu ◽

Li Jiang ◽

Xuying Luo ◽

Na Wang ◽

...

Keyword(s):

Acute Kidney Injury ◽

Logistic Regression ◽

Hospital Mortality ◽

Clinical Outcomes ◽

Critically Ill ◽

Fluid Balance ◽

Critically Ill Patients ◽

Kidney Injury ◽

Icu Mortality ◽

Increased Risk

Introduction: We aimed to identify different trajectories of fluid balance (FB) and investigate the effect of FB trajectories on clinical outcomes in intensive care unit (ICU) patients with acute kidney injury (AKI) and the dose-response association between fluid overload (FO) and mortality. Methods: We derived data from the Beijing Acute Kidney Injury Trial (BAKIT). A total of 1,529 critically ill patients with AKI were included. The primary outcome was 28-day mortality, and hospital mortality, ICU mortality and AKI stage were the secondary outcomes. A group-based trajectory model was used to identify the trajectory of FB during the first 7 days. Multivariable logistic regression was performed to examine the relationship between FB trajectories and clinical outcomes. A logistic regression model with restricted cubic splines was used to examine the dose relationship between FO and 28-day mortality. Results: Three distinct trajectories of FB were identified: low FB (1,316, 86.1%), decreasing FB (120, 7.8%), and high FB (93, 6.1%). Compared with low FB, high FB was associated with increased 28-day mortality (odds ratio [OR] 1.94, 95% confidence interval [CI] 1.17–3.19) and AKI stage (OR 2.04, 95% CI 1.23–3.37), whereas decreasing FB was associated with a reduction in 28-day mortality by approximately half (OR 0.53, 95% CI 0.32–0.87). Similar results were found for the outcomes of ICU mortality and hospital mortality. We observed a J-shaped relationship between maximum FO and 28-day mortality, with the lowest risk at a maximum FO of 2.8% L/kg. Conclusion: Different trajectories of FB in critically ill patients with AKI were associated with clinical outcomes. An FB above or below a certain range was associated with an increased risk of mortality. Further studies should explore this relationship and search for the optimal fluid management strategies for critically ill patients with AKI.

Download Full-text

Clinical Significance of Bioimpedance Spectroscopy in Critically Ill Patients

Journal of Intensive Care Medicine ◽

10.1177/0885066617702591 ◽

2017 ◽

Vol 34 (6) ◽

pp. 495-502 ◽

Cited By ~ 3

Author(s):

Shang-Feng Yang ◽

Ching-Min Tseng ◽

I-Fan Liu ◽

Shin-Hung Tsai ◽

Wein-Shung Kuo ◽

...

Keyword(s):

Hospital Mortality ◽

Critically Ill ◽

Critically Ill Patients ◽

Fluid Management ◽

Laboratory Data ◽

Acute Stage ◽

Volume Control ◽

Hospital Death ◽

Icu Admission ◽

The Third

Background: Early fluid resuscitation is a key aspect in the successful management of critically ill patients, but the optimal goal for volume control after the acute stage of critical illness remains unclear. This study aimed to evaluate the prognostic value of bioimpedance spectrometry for fluid management in critically ill patients. Methods: In this prospective observational study, patients who consented to participate were screened within the first 24 hours of admission to a medical intensive care unit (ICU) from February 4, 2015, to January 31, 2016. Information on demographics, comorbidities, primary reasons for admission, baseline laboratory data, and ventilator or inotropic use were documented. Data of fluid intake, fluid output, and body weight were recorded for the first 3 days of ICU admission. Bioimpedance spectrometry was performed on the first and third days after ICU admission. All participants were followed until death or hospital discharge. Results: Of the 140 enrolled patients (median age: 70 years, interquartile range: 60-77 years), 23 (16.4%) patients died during hospitalization. Independent predictors of hospital mortality were Acute Physiology and Chronic Health Evaluation II scores (per 1 point increase, odds ratio [OR]: 1.101) and overhydration (OH) volume on the first day (per 1 L increase, OR: 1.216). Compared to normal OH status (OH volume between −1 and 1 L), hyper OH status (OH volume < −1 L) on the third day after ICU admission was an independent predictor of hospital death (OR: 7.609). Normal OH status on the third day was associated with greater numbers of ICU-free and ventilator-free days. Conclusion: Bioimpedance spectrometry can be used to predict outcomes in critically ill patients. Increased OH volume on day 1 and hyper OH volume on day 3 of ICU admission are associated with a greater risk of hospital mortality. Volume status on day 3 is associated with durations of ventilator use and ICU stay.

Download Full-text

Fluid balance as a biomarker: impact of fluid overload on outcome in critically ill patients with acute kidney injury

Critical Care ◽

10.1186/cc6948 ◽

2008 ◽

Vol 12 (4) ◽

pp. 169 ◽

Cited By ~ 107

Author(s):

Sean M Bagshaw ◽

Patrick D Brophy ◽

Dinna Cruz ◽

Claudio Ronco

Keyword(s):

Acute Kidney Injury ◽

Critically Ill ◽

Fluid Balance ◽

Critically Ill Patients ◽

Fluid Overload ◽

Kidney Injury

Download Full-text

Elevated serum galectin-1 concentrations are associated with increased risks of mortality and acute kidney injury in critically ill patients

PLoS ONE ◽

10.1371/journal.pone.0257558 ◽

2021 ◽

Vol 16 (9) ◽

pp. e0257558

Author(s):

Ruey-Hsing Chou ◽

Chuan-Tsai Tsai ◽

Ya-Wen Lu ◽

Jiun-Yu Guo ◽

Chi-Ting Lu ◽

...

Keyword(s):

Acute Kidney Injury ◽

Critically Ill ◽

Sofa Score ◽

Critically Ill Patients ◽

Medical Center ◽

Elevated Serum ◽

Kidney Injury ◽

The Body ◽

Icu Admission ◽

Increased Risk

Background Galectin-1 (Gal-1), a member of the β-galactoside binding protein family, is associated with inflammation and chronic kidney disease. However, the effect of Gal-1 on mortality and acute kidney injury (AKI) in critically-ill patients remain unclear. Methods From May 2018 to March 2020, 350 patients admitted to the medical intensive care unit (ICU) of Taipei Veterans General Hospital, a tertiary medical center, were enrolled in this study. Forty-one patients receiving long-term renal replacement therapy were excluded. Serum Gal-1 levels were determined within 24 h of ICU admission. The patients were divided into tertiles according to their serum Gal-1 levels (low, serum Gal-1 < 39 ng/ml; median, 39–70 ng/ml; high, ≥71 ng/ml). All patients were followed for 90 days or until death. Results Mortality in the ICU and at 90 days was greater among patients with elevated serum Gal-1 levels. In analyses adjusted for the body mass index, malignancy, sepsis, Sequential Organ Failure Assessment (SOFA) score, and serum lactate level, the serum Gal-1 level remained an independent predictor of 90-day mortality [median vs. low: adjusted hazard ratio (aHR) 2.11, 95% confidence interval (CI) 1.24–3.60, p = 0.006; high vs. low: aHR 3.21, 95% CI 1.90–5.42, p < 0.001]. Higher serum Gal-1 levels were also associated with a higher incidence of AKI within 48 h after ICU admission, independent of the SOFA score and renal function (median vs. low: aHR 2.77, 95% CI 1.21–6.34, p = 0.016; high vs. low: aHR 2.88, 95% CI 1.20–6.88, p = 0.017). The results were consistent among different subgroups with high and low Gal-1 levels. Conclusion Serum Gal-1 elevation at the time of ICU admission were associated with an increased risk of mortality at 90 days, and an increased incidence of AKI within 48 h after ICU admission.

Download Full-text

Association between Malnutrition and Hospital Mortality and Duration of Intensive Care Unit Admission in the Critically Ill: A Prospective Cohort Study

10.20944/preprints201711.0066.v1 ◽

2017 ◽

Author(s):

Charles Chin Han Lew ◽

Gabriel Jun Yung Wong ◽

Ka Po Cheung ◽

Ai Ping Chua ◽

Mary Foong Fong Chong ◽

...

Keyword(s):

Intensive Care Unit ◽

Cohort Study ◽

Intensive Care ◽

Hospital Mortality ◽

Critically Ill ◽

Prospective Cohort Study ◽

Critically Ill Patients ◽

Prospective Cohort ◽

Unit Length ◽

Increased Risk

There is limited evidence for the association between malnutrition and hospital mortality as well as Intensive Care Unit length-of-stay (ICU-LOS) in critically ill patients. We aimed to examine the aforementioned associations by conducting a prospective cohort study in an ICU of a Singapore tertiary hospital. Between August 2015 and October 2016, all adult patients with ≥24 h of ICU-LOS were included. The 7-point Subjective Global Assessment (7-point SGA) was used to determine patients’ nutritional status within 48 hours of ICU admission. Multivariate analyses were conducted in two ways: 1) presence versus absence of malnutrition, and 2) dose-dependent association for each 1-point decrease in the 7-point SGA. There were 439 patients of which 28.0% were malnourished, and 29.6% died before hospital discharge. Malnutrition was associated with an increased risk of hospital mortality [adjusted-RR 1.39 (95%CI: 1.10–1.76)], and this risk increased with a greater degree of malnutrition [adjusted-RR 1.09 (95%CI: 1.01–1.18) for each 1-point decrease in the 7-point SGA]. No significant association was found between malnutrition and ICU-LOS. Conclusion: There was a clear association between malnutrition and higher hospital mortality in critically ill patients. The association between malnutrition and ICU-LOS could not be replicated and hence requires further evaluation.

Download Full-text

Association of early-onset constipation and diarrhea with patient outcomes in critically ill ventilated patients: a retrospective observational cohort study

10.21203/rs.3.rs-966931/v1 ◽

2021 ◽

Author(s):

Gen Aikawa ◽

Akira Ouchi ◽

Hideaki Sakuramoto ◽

Tetsuya Hoshino ◽

Yuki Enomoto ◽

...

Keyword(s):

Critically Ill ◽

Critically Ill Patients ◽

Early Onset ◽

Multivariable Analysis ◽

Icu Admission ◽

Icu Stay ◽

Normal Defecation ◽

Poor Outcomes ◽

Length Of Icu Stay ◽

Ventilated Patients

Abstract Constipation and diarrhea are both associated with poor outcomes in critically ill patients. Although constipation and diarrhea are closely related, few studies have examined them simultaneously. The purpose of this study was to describe patient defecation status after intensive care unit (ICU) admission and determine the association of early-onset constipation and diarrhea after ICU admission with outcomes for critically ill ventilated patients. Critically ill patients were retrospectively investigated and their defecation status was assessed during the first week after admission. The patients were divided into three groups: normal defecation, constipation, and diarrhea, and multiple comparison tests were performed. Additionally, multivariable analysis was performed for mortality and length of stay. Of the 85 critically ill ventilated patients, 47 (55%) experienced constipation, and 12 (14%) experienced diarrhea during the first week of ICU admission. Patients with normal defecation and diarrhea increased from the fourth and fifth day of ICU admission. Diarrhea was significantly associated with the length of ICU stay (B=7.534, 95% confidence interval: 0.116-14.951). Early-onset constipation and diarrhea were common in critically ill ventilated patients, and early-onset diarrhea was associated with the length of ICU stay. Prevention of constipation and diarrhea before the fifth day of ICU admission is essential.

Download Full-text

The triglyceride-glucose index played an important role in prognosis in critically ill patients with heart disease

10.21203/rs.3.rs-819706/v1 ◽

2021 ◽

Author(s):

Guangyao Zhai ◽

Biyang Zhang ◽

Jianlong Wang ◽

Yuyang Liu ◽

Yujie Zhou

Keyword(s):

Heart Disease ◽

Hospital Mortality ◽

Critically Ill ◽

Critically Ill Patients ◽

Binary Logistic Regression ◽

Independent Effect ◽

Binary Logistic Regression Analysis ◽

Triglyceride Glucose Index ◽

Increased Risk ◽

Patients With Diabetes

Abstract Background As an alternative method to evaluate insulin resistance (IR), triglyceride-glucose index (TyG) was shown to be related to the severity and prognosis of cardiovascular diseases. The main objective of this study was to explore the association between TyG and in-hospital mortality in critically ill patients with heart disease Method: TyG was calculated as previously reported: ln [fasting TGs (mg/dL) * FBG (mg/dL)/2]. All patients were divided into four different categories based on TyG quartiles. Primary outcome was in-hospital mortality. Binary logistic regression analysis was performed to determine the independent effect of TyG. Result 4839 critically ill patients with heart disease were included. In-hospital mortality increased as TyG quartiles increased (Quartile 4 vs Quartile 1: 12.1 vs 5.3, P < 0.001). Even after adjusting for confounding variables, TyG was still independently associated with the increased risk of in-hospital mortality in critically ill patients with heart disease (Quartile 4 vs Quartile 1: OR, 95% CI: 2,43, 1.79–3.31, P < 0.001, P for trend < 0.001). However, we did not observe the association between increased TyG and the risk of mortality in patients with diabetes. Furthermore, as TyG quartiles increased, the length of intensive care unit (ICU) stay was prolonged (Quartile 4 vs Quartile 1: 2.3, 1.3–4.9 vs 2.1, 1.3–3.8, P = 0.007). And the significant interactions were not found in most subgroups. Conclusion TyG was independently correlated with in-hospital mortality in critically ill patients with heart disease.

Download Full-text

Fluctuations in Serum Chloride and Acute Kidney Injury among Critically Ill Patients: A Retrospective Association Study

Journal of Clinical Medicine ◽

10.3390/jcm8040447 ◽

2019 ◽

Vol 8 (4) ◽

pp. 447 ◽

Cited By ~ 3

Author(s):

Tak Kyu Oh ◽

In-Ae Song ◽

Young-Tae Jeon ◽

You Hwan Jo

Keyword(s):

Acute Kidney Injury ◽

Confidence Interval ◽

Critically Ill ◽

Critically Ill Patients ◽

Odds Ratio ◽

Kidney Injury ◽

Icu Admission ◽

Serum Chloride ◽

Increased Risk ◽

The Difference

Exposure to dyschloremia among critically ill patients is associated with an increased risk of acute kidney injury (AKI). We aimed to investigate how fluctuations in serum chloride (Cl−) are associated with the development of AKI in critically ill patients. We retrospectively analyzed medical records of adult patients admitted to the intensive care unit (ICU) between January 2012 and December 2017. Positive and negative fluctuations in Cl− were defined as the difference between the baseline Cl- and maximum Cl- levels and the difference between the baseline Cl− and minimum Cl− levels measured within 72 h after ICU admission, respectively. In total, 19,707 patients were included. The odds of developing AKI increased 1.06-fold for every 1 mmol L−1 increase in the positive fluctuations in Cl− (odds ratio: 1.06; 95% confidence interval: 1.04 to 1.08; p < 0.001) and 1.04-fold for every 1 mmol L−1 increase in the negative fluctuations in Cl− (odds ratio: 1.04; 95% confidence interval: 1.02 to 1.06; p < 0.001). Increases in both the positive and negative fluctuations in Cl- after ICU admission were associated with an increased risk of AKI. Furthermore, these associations differed based on the functional status of the kidneys at ICU admission or postoperative ICU admission.

Download Full-text