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Diagnosis-dependent relationships between cytokine levels and survival in patients admitted for surgical critical care.

ABSTRACT: Death after trauma, infection, or other critical illness has been attributed to unbalanced inflammation, in which dysregulation of cytokines leads to multiple organ dysfunction and death. We hypothesized that admission cytokine profiles associated with death would differ based on admitting diagnosis.This 5-year study included patients admitted for trauma or surgical intensive care for more than 48 hours at 2 academic, tertiary care hospitals between October 2001 and May 2006. Cytokine analysis for interleukin (IL)-1, -2, -4, -6, -8, -10, -12, interferon-gamma, and tumor necrosis factor (TNF)-alpha was performed using ELISA on specimens drawn within 72 hours of admission. Mann-Whitney U test was used to compare median admission cytokine levels between alive and deceased patients. Relative risks and odds of death associated with admission cytokines were generated using univariate analysis and multivariate logistic regression models, respectively.There were 1,655 patients who had complete cytokine data: 290 infected, nontrauma; 343 noninfected, nontrauma; and 1,022 trauma. Among infected patients, nonsurvivors had higher median admission levels of IL-2, -8, -10, and granulocyte macrophage-colony stimulating factor; noninfected, nontrauma patients had higher IL-6, -8, and IL-10; and nonsurviving trauma patients had higher IL-4, -6, -8, and TNF-alpha. IL-4 was the most significant predictor of death and carried the highest relative risk of dying in trauma patients, and IL-8 in nontrauma, noninfected patients. In infected patients, no cytokine independently predicted death.Cytokine profiles of certain disease states may identify persons at risk of dying and allow for selective targeting of multiple cytokines to prevent organ dysfunction and death.

SUBMITTER: Hranjec T

PROVIDER: S-EPMC2861048 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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Diagnosis-dependent relationships between cytokine levels and survival in patients admitted for surgical critical care.

Hranjec Tjasa T Swenson Brian R BR Dossett Lesly A LA Metzger Rosemarie R Flohr Tanya R TR Popovsky Kimberley A KA Bonatti Hugo J HJ May Addison K AK Sawyer Robert G RG

Journal of the American College of Surgeons 20100501 5

<h4>Background</h4>Death after trauma, infection, or other critical illness has been attributed to unbalanced inflammation, in which dysregulation of cytokines leads to multiple organ dysfunction and death. We hypothesized that admission cytokine profiles associated with death would differ based on admitting diagnosis.<h4>Study design</h4>This 5-year study included patients admitted for trauma or surgical intensive care for more than 48 hours at 2 academic, tertiary care hospitals between Octobe ...[more]

PMID: 20421061

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Project description:ImportanceSingle-center and claims-based studies have described substantial changes in the landscape of care in the cardiac intensive care unit (CICU). Professional societies have recommended research to guide evidence-based CICU redesigns.ObjectiveTo characterize patients admitted to contemporary, advanced CICUs.Design, setting, and participantsThis study established the Critical Care Cardiology Trials Network (CCCTN), an investigator-initiated multicenter network of 16 advanced, tertiary CICUs in the United States and Canada. For 2 months in each CICU, data for consecutive admissions were submitted to the central data coordinating center (TIMI Study Group). The data were collected and analyzed between September 2017 and 2018.Main outcomes and measuresDemographics, diagnoses, management, and outcomes.ResultsOf 3049 participants, 1132 (37.1%) were women, 797 (31.4%) were individuals of color, and the median age was 65 years (25th and 75th percentiles, 55-75 years). Between September 2017 and September 2018, 3310 admissions were included, among which 2557 (77.3%) were for primary cardiac problems, 337 (10.2%) for postprocedural care, 253 (7.7%) for mixed general and cardiac problems, and 163 (4.9%) for overflow from general medical ICUs. When restricted to the initial 2 months of medical CICU admissions for each site, the primary analysis population included 3049 admissions with a high burden of noncardiovascular comorbidities. The top 2 CICU admission diagnoses were acute coronary syndrome (969 [31.8%]) and heart failure (567 [18.6%]); however, the proportion of acute coronary syndrome was highly variable across centers (15%-57%). The primary indications for CICU care included respiratory insufficiency (814 [26.7%]), shock (643 [21.1%]), unstable arrhythmia (521 [17.1%]), and cardiac arrest (265 [8.7%]). Advanced CICU therapies or monitoring were required for 1776 patients (58.2%), including intravenous vasoactive medications (1105 [36.2%]), invasive hemodynamic monitoring (938 [30.8%]), and mechanical ventilation (652 [21.4%]). The overall CICU mortality rate was 8.3% (95% CI, 7.3%-9.3%). The CICU indications that were associated with the highest mortality rates were cardiac arrest (101 [38.1%]), cardiogenic shock (140 [30.6%]), and the need for renal replacement therapy (51 [34.5%]). Notably, patients admitted solely for postprocedural observation or frequent monitoring had a mortality rate of 0.2% to 0.4%.Conclusions and relevanceIn a contemporary network of tertiary care CICUs, respiratory failure and shock predominated indications for admission and carried a poor prognosis. While patterns of practice varied considerably between centers, a substantial, low-risk population was identified. Multicenter collaborative networks, such as the CCCTN, could be used to help redesign cardiac critical care and to test new therapeutic strategies.

Dataset Information

Diagnosis-dependent relationships between cytokine levels and survival in patients admitted for surgical critical care.

Publications

Diagnosis-dependent relationships between cytokine levels and survival in patients admitted for surgical critical care.

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