Outcomes In Sepsis Patients Research Articles

Leukocyte Count and Neutrophil/Lymphocyte Ratio as Predictor of Mortality in Sepsis Patients

Mortality in septic patients remains high despite much progress in understanding the definition, pathophysiology, and management of sepsis through sepsis bundles. Both leukocyte count and Neutrophil/Lymphocyte Ratio (NLR) are relatively inexpensive routine tests for infectious patients. Several studies of leukocytes, total neutrophils, total lymphocytes, and neutrophil/lymphocyte ratio were carried out as alternative parameters for monitoring the severity and as prognostic factors. This study aimed to analyze the difference in leukocytes and NLR based on the outcome of sepsis patients and evaluate their role in predicting death. The study was an analytic cohort of sepsis patients in intensive care at Raden Mattaher Hospital Jambi as the subjects. The research variables were survivor and non-survivor outcomes, leukocyte count, and NLR evaluation at 0, 24, 72, and 144 hours. Data were analyzed using the SPSS 21 test of difference and survival test. There was a total of 34 subjects, which consisted of a group of survivors of 14 patients (41.18%) and non-survivors of 20 patients (58.82%). At the initial diagnosis of sepsis, there was a statistically significant difference in the leukocyte count (p=0.006) and NLR (p=0.042) between survivors and non-survivors. At initial diagnosis, the leukocyte count > 15.49 X 103/µL can predict the death of sepsis patients with a Hazard Ratio (HR) of 4.001. The survival rate of patients with a leukocyte count < 15.49X103/µL and > 15.49 X 103/µL was 89.4% and 64.3%, respectively, which was statistically significant (p=0.0002). At initial diagnosis, NLR with a value of> 13.2 can predict the death of sepsis patients with HR 3.370 (p=0.001). Leukocyte count > 15.49 X 103/µL and NLR > 13.2 at the initial diagnosis of sepsis showed a risk of death of 4.001 and 3.370 times higher risk in the 144-hour evaluation. Leukocyte count > 15.49 X 103/µL and NLR > 13.2 was able to be a predictor of mortality and an indicator of a need for aggressive management in sepsis patients.

ASSESSMENT OF THE OUTCOME OF SEPSIS PATIENTS ADMITTED TO THE INTENSIVE CARE UNIT

Background: Sepsis remains a significant challenge in critical care medicine, with high morbidity and mortality rates, particularly among patients admitted to the intensive care unit (ICU). Understanding sepsis outcomes in the ICU is crucial for guiding clinical management decisions and improving patient care practices. Objective: This study aimed to assess the consequences of severe sepsis and septic shock in patients admitted to the ICU at Bahria Town International Hospital Lahore, focusing on mortality rates, risk factors for death, and site of infection. Study Design: A prospective clinical study adhering to STROBE guidelines was conducted at the ICU of Bahria Town International Hospital Lahore from March 2023 to December 2023. Setting: The study was conducted at the Intensive Care Unit (ICU) of Bahria Town International Hospital Lahore. Duration of Study: The study was conducted from March 2023 to December 2023. Material and Methods: Patients aged 18 years and older admitted to the ICU with severe sepsis or septic shock were included. Exclusion criteria included ICU length of stay shorter than 24 hours and patients under 18 years old. Data on demographics, infection source, comorbidities, laboratory results, hospital stay, and outcomes were prospectively collected using a predefined form. Data analysis was performed using SPSS 21 software, including descriptive statistics and binary logistic regression, to identify variables affecting patient survival. Results: Sixty individuals were enrolled, with a mean age of 55.55 ± 20.32 years. The majority were male (58.3%). The mean length of hospital stay was 6.43 ± 3.54 days. Among the study population, 43.3% had severe sepsis, and 56.6% had septic shock. The mortality rate was 41.6%. Positive blood culture was associated with a higher mortality rate, and patients with septic shock had a significantly increased risk of death. Complications with the respiratory, renal, and central neurological systems also increased the likelihood of death. Conclusion: This study highlights the significant mortality associated with severe sepsis and septic shock in ICU patients. Positive blood culture and septic shock were identified as important predictors of mortality. Early recognition and management of these factors are essential for improving patient outcomes in sepsis.

Serum Procalcitonin vs SOFA Score in Predicting Outcome in Sepsis Patients in Medical Intensive Care Unit.

Sepsis is a dysregulated host response to infection that leads to acute organ dysfunction. The Sequential Organ Failure Assessment (SOFA) score is one of the gold standard tests in assessing the patient's status during ICU stay and also to predict the clinical outcomes of the patients. Procalcitonin (PCT) is a more specific marker for bacterial infection. In this study, we compared PCT and SOFA scores in predicting morbidity and mortality outcomes in sepsis. A prospective cohort study was conducted on 80 patients with suspected sepsis. Patients who were >18 years of age with suspected sepsis presenting to the emergency room within 24-36 hours of illness are included in the study. SOFA score was calculated, and blood was drawn for PCT at the time of admission. The average SOFA score in survivors was 6.1 ± 1.93, whereas, in nonsurvivors, it was 8.3 ± 2.13. The average PCT level in survivors was 3.7 ± 1.5, whereas, in nonsurvivors, was 6.4 ± 3.13. Area under the curve (AUC) for serum procalcitonin was found to be 0.77 (p value = 0.001) with average procalcitonin level of 4.15 ng/mL with sensitivity of 70% and specificity of 60%. AUC of SOFA score was found to be 0.78 (p value = 0.001) with an average score of 8, having a sensitivity of 73% and specificity of 74%. Serum PCT and SOFA scores are significantly elevated in patients with sepsis and septic shock, indicating their utility in predicting the severity and also their ability to assess end-organ damage. Shinde VV, Jha A, Natarajan MSS, Vijayakumari V, Govindaswamy G, Sivaasubramani S, et al. Serum Procalcitonin vs SOFA Score in Predicting Outcome in Sepsis Patients in Medical Intensive Care Unit. Indian J Crit Care Med 2023;27(5):348-351.

PROCALCITONIN VS C-REACTIVE PROTEIN: COMPARISON AS MARKERS OF SEVERITY IN SEPSIS- A HOSPITAL BASED OBSERVATIONAL STUDY FROM NORTH EAST INDIA.

BACKGROUND: Sepsis is a life-threatening organ dysfunction caused by the dysregulation of a host's response to infections (1) which is further complicated by an altered metabolic state.Both CRP and Procalcitonin are accepted sepsis markers. But there is still some debate regarding the correlation between their serum concentrations and sepsis severity. MATERIALS AND METHODS A prospective observational study was carried out in patients >18 years with sepsis and meeting the inclusion and exclusion criteria for a period of 6 months from 1st September 2021 to 28th February,2022.The severity of sepsis related organ dysfunction was assessed by the SOFA score on day 1.Patients were categorized into 4 groups according to SOFA score as group 1 (0-6),group 2 (7-12),group 3 (13-18) and group 4(19-24). Serum PCT and CRP concentrations were measured on day 1 RESULTS A total of 50 patients presenting with sepsis were studied. The mean serum PCT concentration(ng/ml) in 4 SOFA groups was 7.61,28.47,40.16,85.09(p value<0.001) respectively. The mean CRP concentration (mg/ml) in 4 SOFA groups was 157.63,152.85,144.24,64.66 respectively (p value 0.13). Mean SOFA score was higher among patients who died (11.33±5.66) than those who survived (6.71±3.57) and the difference is statistically significant(p<0.001).The mean PCT (ng/ml) and CRP (mg/l) concentration in those who survived were 17.88 and 149.30 respectively and in those who died were 35.28(p value<0.001) and 160.46 (p value 0.167) respectively. The linear correlation between PCT plasma concentrations and the four categories was much stronger than in the case of CRP (Spearman's Rho,0.483 vs -0.197;p<0.001) CONCLUSION SOFA score and serum PCT concentration show significant correlation with respect to severity of organ dysfunction and outcome in sepsis patients compared to serum CRP concentration

Albumin Level is Associated with Short-Term and Long-Term Outcomes in Sepsis Patients Admitted in the ICU: A Large Public Database Retrospective Research.

This study aimed to explore the relationship between albumin level with short- and long-term outcomes in sepsis patients admitted in the intensive care unit (ICU) based on a large public database to provide clinical evidence for physicians to make individualized plans of albumin supplementation. Sepsis patients admitted in the ICU in MIMIC-IV were included. Different models were performed to investigate the relationships between albumin and mortalities of 28-day, 60-day, 180-day and 1-year. Smooth fitting curves were performed. A total of 5357 sepsis patients were included. Mortalities of 28-day, 60-day, 180-day and 1-year were 29.29% (n = 1569), 33.92% (n = 1817), 36.70% (n = 1966) and 37.71% (n = 2020). In the fully adjusted model (adjusted for all potential confounders), with each 1g/dL increment in albumin level, the risk of mortality in 28-day, 60-day, 180-day and 1-year decreased by 39% (OR = 0.61, 95% CI: 0.54-0.69), 34% (OR = 0.66, 95% CI: 0.59-0.73), 33% (OR = 0.67, 95% CI: 0.60-0.75), and 32%(OR = 0.68, 95% CI: 0.61-0.76), respectively. The non-linear negative relationships between albumin and clinical outcomes were confirmed by smooth fitting curves. The turning point of albumin level was 2.6g/dL for short- and long-term clinical outcomes. When albumin level ≤2.6g/dL, with each 1g/dL increment in albumin level, the risk of mortality in 28-day, 60-day, 180-day and 1-year decreased by 59% (OR = 0.41, 95% CI: 0.32-0.52), 62% (OR = 0.38, 95% CI: 0.30-0.48), 65% (OR = 0.35, 95% CI: 0.28-0.45), and 62%(OR = 0.38, 95% CI: 0.29-0.48), respectively. Albumin level was associated with short- and long-term outcomes in sepsis. Albumin supplementation might be beneficial for septic patients with serum albumin<2.6g/dL.

DECREASE IN THE PLATELET-TO-LYMPHOCYTE RATIO IN DAYS AFTER ADMISSION FOR SEPSIS CORRELATES WITH IN-HOSPITAL MORTALITY.

Background: A previous study has linked an increase in platelet-to-lymphocyte ratio (PLR) to a poor prognosis; however, the relationship between early change in PLR and outcomes in sepsis patients is unclear. Methods : The Medical Information Mart for Intensive Care IV database was for this retrospective cohort analysis on patients meeting the Sepsis-3 criteria. All the patients meet the Sepsis-3 criteria. The platelet-to-lymphocyte ratio (PLR) was calculated by dividing the platelet count by the lymphocyte count. We collected all PLR measurements that were available within 3 days of admission for analysis of longitudinal changes over time. Multivariable logistic regression analysis was used to determine the relationship between the baseline PLR and in-hospital mortality. After correcting for possible confounders, the generalized additive mixed model was used to examine the trends in PLR over time among survivors and nonsurvivors. Results: Finally, 3,303 patients were enrolled, and both low and high PLR levels were significantly associated with higher in-hospital mortality in the multiple logistic regression analysis (tertile 1: odds ratio, 1.240; 95% confidence interval, 0.981-1.568 and tertile 3: odds ratio, 1.410; 95% confidence interval, 1.120-1.776, respectively). The generalized additive mixed model results revealed that the PLR of the nonsurvival group declined faster than that of the survival group within 3 days after intensive care unit admission. After controlling for confounders, the difference between the two groups steadily decreased and increased by an average of 37.38 daily. Conclusions : There was a U-shaped relationship between the baseline PLR and in-hospital mortality of sepsis patients, and there was a significant difference between the nonsurvival and survival groups in the change in PLR over time. The early decrease in PLR was related to an increase in in-hospital mortality.

Complement activation in severely ill patients with sepsis: no relationship with inflammation and disease severity

BackgroundSepsis is characterized by a dysregulated immune response to infection. The complement system plays an important role in the host defence to pathogens. However, exaggerated complement activation might contribute to a hyperinflammatory state. The interplay between complement activation and inflammation in relationship with adverse outcomes in sepsis patients is unclear.MethodsSecondary analysis of complement factors in a prospective study in 209 hospitalized sepsis patients, of whom the majority presented with shock. Concentrations of complement factors C3, C3a, C3c, C5, C5a, and soluble terminal complement complex were assessed in ethylenediaminetetraacetic acid plasma samples collected within 24 h after sepsis diagnosis using enzyme-linked immunosorbent assays.ResultsThe concentration of complement factors in plasma of severely ill sepsis patients indicated profound activation of the complement system (all P < 0.01 compared to healthy controls). Spearman rank correlation tests indicated consistent relationships between the different complement factors measured, but no significant correlations were observed between the complement factors and other inflammatory biomarkers such as leukocyte numbers, C-reactive protein and ferritin concentrations, or HLA-DR expression on monocytes. The concentration of complement factors was not associated with Sequential Organ Failure Assessment score, the incidence of septic shock, and mortality rates (all P > 0.05) in this cohort of patients with high disease severity.ConclusionsOnce an infection progresses to severe sepsis or septic shock, the complement pathway is already profoundly activated and is no longer related to a dysregulated inflammatory response, nor to clinical outcome. This implies that in this patient category with severe disease, the complement system is activated to such an extent that it no longer has predictive value for clinical outcome.

Vitamin D Deficiency: An Underestimated Factor in Sepsis?

Vitamin D is an important immune modulator that is linked to infection susceptibility. It has been suggested that vitamin D deficiency plays a role in sepsis and septic shock because vitamin-D-related pathways are associated with various immunological, endocrine, and endothelial functions. Previous research has yielded inconclusive results regarding the link between mortality and vitamin D deficiency in sepsis patients. In patients with sepsis and severe vitamin D deficiency, an adequate vitamin D concentration may reduce mortality. Randomized controlled trials to assess the influence of vitamin D supplementation on clinical outcomes in sepsis patients with vitamin D deficiency are uncommon. We will provide an overview of the current knowledge about the relationship between vitamin D and sepsis in this review, as well as consider the potential value of vitamin D supplementation in this situation.

Association Between Hypocholesterolemia and Mortality in Critically Ill Patients With Sepsis: A Systematic Review and Meta-Analysis.

Systematic review and meta-analysis of published studies on PubMed and Embase. All observational studies reporting ICU admission cholesterol and triglyceride levels in critically ill patients with sepsis were included. Authors were contacted for further data. Eighteen observational studies were identified, including 1,283 patients with a crude overall mortality of 33.3%. Data were assessed using Revman (Version 5.1, Cochrane Collaboration, Oxford, United Kingdom) and presented as mean difference (MD) with 95% CIs, p values, and I 2 values. Admission levels of total cholesterol (17 studies, 1,204 patients; MD = 0.52 mmol/L [0.27-0.77 mmol/L]; p < 0.001; I 2 = 91%), high-density lipoprotein (HDL)-cholesterol (14 studies, 991 patients; MD = 0.08 mmol/L [0.01-0.15 mmol/L]; p = 0.02; I 2 = 61%), and low-density lipoprotein (LDL)-cholesterol (15 studies, 1,017 patients; MD = 0.18 mmol/L [0.04-0.32 mmol/L]; p = 0.01; I 2 = 71%) were significantly lower in eventual nonsurvivors compared with survivors. No association was seen between admission triglyceride levels and mortality (15 studies, 1,070 patients; MD = 0.00 mmol/L [-0.16 to 0.15 mmol/L]; p = -0.95; I 2 = 79%). Mortality was associated with lower levels of total cholesterol, HDL-cholesterol, and LDL-cholesterol, but not triglyceride levels, in patients admitted to ICU with sepsis. The impact of cholesterol replacement on patient outcomes in sepsis, particularly in at-risk groups, merits investigation.

Alterations in levels of cytokine following treatment to predict outcome of sepsis: A meta-analysis.

The mortality rate of patients with sepsis has been increasing in recent years. Alterations of biomarkers levels during treatment are important in evaluating treatment efficacy and predicting outcomes in sepsis. This meta-analysis investigated the relationship between changes in cytokine levels after treatment compared with those on hospital admission, and their relationship with the prognosis of patients with sepsis. From conception until August 4, 2021, a complete literature search of the PubMed, Web of Science, and Cochrane Library electronic databases was done. Observational studies where the outcomes of sepsis patients were divided into non-survivors and survivors and which reported cytokine levels at least before treatment in ICU were included in the current study. Standardized mean difference (SMD) with 95% confidence intervals (CI) values from individual studies were pooled using a random-effects model. Quality assessment, subgroup analysis, publication bias, and sensitivity analyses were all carried out. A total of 2570 patients with sepsis from 25 eligible studies were included, and 14 of them measured the cytokine levels before and after treatment in ICU. Among IL-6, TNF-α, IL-1β and IL-10 levels, those of IL-6 were significantly lower after treatment in ICU than at baseline in patients with sepsis in the survival group (SMD=-0.69, P<0.0001), but were comparable in the non-survival group (SMD=-0.99, P=0.0575). Similarly, post-treatment TNF-α levels were significantly lower than those at baseline only in patients with sepsis in the survival group (SMD=-0.44, P<0.0001), but not in the non-survival group (SMD=-0.17, P=0.0842). This meta-analysis shows that reduced IL-6 and TNF-α levels after sepsis treatment in ICU may be indicators of better prognosis and survival of patients with sepsis.

Association between fluid balance and clinical outcomes in sepsis patients with identified subtypes

Objective: To identify clinical subphenotypes of sepsis by clinical variables, and the association between fluid balance (FB) and outcomes in sepsis patients with different subphenotypes. Methods: Data were derived from China Critical Care Sepsis Trial. A total of 2 075 patients were included in the study, with a mean age of (62.5±17.4) years, 1 362 (65.6%) were male, 713 (34.3%) were female. In-hospital mortality was the primary outcome. Clinical variables were entered into the latent profile analysis (LPA) model which was used to identify the subphenotypes of sepsis. Multivariable logistic regression model was used to explore the association of FB on the first 2 days admitted to ICU and in-hospital mortality. Results: Total of 687 (33.1%) patients died in the hospital. Four subphenotypes of sepsis were identified by the PLA model: 1 421 (68.5%) patients were identified as profile 1, which was characterized by the lowest in-hospital mortality (28.3%, 402/1 421) and was considered as the baseline subphenotype; profile 2 was characterized by multiple organ dysfunction(232, 11.2%); profile 3 was characterized by respiratory dysfunction (196, 9.4%) and profile 4 was characterized by kidney injury/failure (226, 10.9%). Profile 2 showed the highest in-hospital mortality (54.3%, 126/232), followed by profile 4 (39.4%, 89/226), profile 3 (35.7%, 70/196). Profile 2 had the highest FB of 68.5(34.7, 89.4)ml/kg on day 1 and decreased rapidly to 29.4(13.6, 49.8) ml/kg on day 2. Multivariable analysis showed that for every 10 ml/kg of FB increased on the first 48 hours admitted to ICU, the risk of in-hospital mortality decreased 14% (OR=0.86, 95%CI: 0.81-0.97) in profile 2, and increased 4% (OR=1.04, 95%CI:1.02-1.07) in profile 4. However, there were no significant association between FB on the fist 2 days admitted to ICU and the risk of in-hospital mortality in profile 1 (OR=1.06, 95%CI: 0.94-1.19)and in profile 3 (OR=0.99, 95%CI: 0.94-1.05). Conclusions: Four subphenotypes of sepsis were identified according to the clinical variables, which showed different characteristics, distributions, outcomes and responses to fluid balance.

THE ROLE OF OBESITY AND PLASMA ADIPOCYTOKINES IN IMMUNE DYSREGULATION IN SEPSIS PATIENTS.

Introduction: The dysregulated immune response in sepsis is highly variable, ranging from hyperinflammation to immunoparalysis. Obesity is associated with the release of inflammatory mediators from adipose tissue, known as adipocytokines, causing a chronic inflammatory state. Perhaps counterintuitively, obesity is also associated with lower mortality in sepsis patients. We investigated the association between obesity, circulating adipocytokine concentrations, immune dysregulation, and outcome in sepsis patients. Methods In this secondary analysis of a prospective study, plasma concentrations of the adipocytokines leptin, adiponectin, and resistin were assessed in 167 patients at diagnosis of sepsis due to pneumonia, bacteremia, or acute cholangitis. Adipocytokines were compared between patients with normal weight (body mass index [BMI], 18.5-24.9 kg/m 2 ; n = 67), overweight (BMI, 25.0-29.9 kg/m 2 ; n = 56), and obesity (BMI ≥30 kg/m 2 ; n = 42), as well as between immunological endotypes: hyperinflammation (n = 40), immunoparalysis (n = 62), and unclassified (n = 55). Results: Higher circulating concentrations of leptin were observed in patients with obesity compared with patients with normal weight ( P = 0.008) and overweight ( P = 0.02), whereas adiponectin and resistin plasma concentrations were not different ( P = 0.08 and P = 0.85, respectively). Resistin concentrations were associated with immunological endotypes, with the highest levels found in hyperinflammatory patients ( P < 0.001). Furthermore, resistin concentrations were predictive for 28-day mortality (adjusted odds ratio, 1.03 per 10 ng/mL; P = 0.04). These associations were not found for leptin and adiponectin. Conclusion: Obesity and BMI-related adipocytokines are not related to the development of a hyperactive or suppressed immune response as defined by ferritin and mHLA-DR expression in sepsis patients. Although resistin is related to the immune response and an increased risk of adverse clinical outcomes, these associations are similar in patients with normal weight, overweight, and obesity. This implies that the relationship between resistin and clinical outcome is likely driven by the inflammatory response and not by obesity itself. Taken together, although there exists a strong association between inflammation and sepsis mortality, our results do not point toward a role for obesity and BMI-related adipocytokines in immune dysregulation in sepsis patients.

The impact of a sepsis performance improvement program in the emergency department: a before–after intervention study

PurposeThe latest Surviving Sepsis Campaign guidelines advocate that all hospitals use sepsis performance improvement programs. However, there is a limited evidence about how to structure such programs and what their potential impact is on sepsis management and outcomes in the emergency department (ED). In this study, we evaluated the implementation of a sepsis performance improvement program in the ED including a dedicated sepsis response team and analyzed the management and outcomes of sepsis patients before and after.MethodsWe conducted a before–after interventional study in the ED of the Amsterdam University Medical Centers, the Netherlands. The sepsis performance improvement program included regular educational meetings, daily audits and weekly feedback, a screening tool, and a dedicated multidisciplinary sepsis response team. We studied all adult patients who presented to the ED with a suspected infection and a Modified Early Warning Score (MEWS) ≥ 3 during their stay. In the postintervention phase, these patients were seen by the sepsis team. Process-related and patient-related outcomes were measured between November 2019 and February 2020 (preintervention) and December 2021–May 2022 (postintervention).ResultsA total of 265 patients were included in the primary study, 132 patients preintervention and 133 patients postintervention. The postintervention phase was associated with improvements in nearly all process-related outcomes, such as a shorter time to antibiotics (66 vs. 143 min; p < 0.001), increased number of lactate measurements (72.9 vs. 46.2%; p < 0.001), and improved completeness of documented MEWS scores (85.0 vs. 62.9%; p < 0.001). Except for an improvement in the number of immediate versus delayed ICU admissions (100% immediate vs. 64.3% immediate; p = 0.012), there was no improvement in the other patient-related outcomes such as 28 days mortality (14.3 vs. 9.1%; p = 0.261), during the postintervention phase.ConclusionOur program stimulated physicians to make timely decisions regarding diagnostics and treatment of sepsis in the ED. Implementing the sepsis performance improvement program was associated with significant improvements in most process-related outcomes but with minimal improvements in patient-related outcomes in our cohort.

Prompt Identification of Sepsis on Hospital Floors: Are Healthcare Professionals Ready for the Implementation of the Hour-1 Bundle?

Early intervention in sepsis management with recognized therapeutic targets may be effective in lowering sepsis-related morbidity and mortality, although this necessitates timely identification of sepsis by healthcare professionals. The present study aimed to assess knowledge levels, attitudes, and agreement among physicians regarding the Surviving Sepsis Campaign (SSC) guidelines (more specifically, the Hour-1 bundle). A quantitative, descriptive, cross-sectional study was conducted among physicians working in different clinical settings in Karachi, Pakistan, using a self-administered questionnaire. The mean cumulative knowledge score of the respondents towards SSC was 6.8 ± 2.1 (out of 10), where a total of n = 127 respondents (51.62%) had a strong understanding of the SSC guidelines, compared to n = 78 (31.7%) and n = 41 (16.7%) respondents with fair and inadequate knowledge, respectively. The majorly known bundle elements by the respondents were to administer broad-spectrum antibiotics (89.8%, n = 221), the need for taking blood cultures before administering antibiotics (87.8%, n = 216), and measurement of blood lactate levels (75.6%, n = 186). Experienced physicians were more likely to use norepinephrine as the first-choice vasopressor (p < 0.001). Female respondents were more likely to consider the duration of antibiotic therapy to be determined according to the site of infection, the microbiological etiology, the patient’s response to treatment, and the likelihood of achieving adequate source control (p = 0.001). The current study concluded that respondents had an optimistic approach and frequently practice in accordance with the SSC guidelines, while some respondents were not up to date with the most recent guidelines. There is a need for further interventions and continuous medical education to encourage physicians towards appropriate use of the recommended guiding principles for improving treatment outcomes in sepsis patients.

Sepsis-Induced Brain Dysfunction: Pathogenesis, Diagnosis, and Treatment.

Dysregulated host response to infection, which cause life-threatening organ dysfunction, was defined as sepsis. Sepsis can cause acute and long-term brain dysfunction, namely, sepsis-associated encephalopathy (SAE) and cognitive impairment. SAE refers to changes in consciousness without direct evidence of central nervous system infection. It is highly prevalent and may cause poor outcomes in sepsis patients. Cognitive impairment seriously affects the life quality of sepsis patients and increases the medical burden. The pathogenesis of sepsis-induced brain dysfunction is mainly characterized by the interaction of systemic inflammation, blood-brain barrier (BBB) dysfunction, neuroinflammation, microcirculation dysfunction, and brain dysfunction. Currently, the diagnosis of sepsis-induced brain dysfunction is based on clinical manifestation of altered consciousness along with neuropathological examination, and the treatment is mainly involves controlling sepsis. Although treatments for sepsis-induced brain dysfunction have been tested in animals, clinical treat sepsis-induced brain dysfunction is still difficult. Therefore, we review the underlying mechanisms of sepsis-induced brain injury, which mainly focus on the influence of systemic inflammation on BBB, neuroinflammation, brain microcirculation, and the brain function, which want to bring new mechanism-based directions for future basic and clinical research aimed at preventing or ameliorating brain dysfunction.

Pentraxin 3 (PTX3) as a Predictor of Severity of Sepsis in Patients Admitted to an Intensive Care Unit: A Cross-Sectional Study From North India.

Background: Sepsis is a common clinical syndrome in critical patients in the medical intensive care unit. Many scoring systems and biomarkers are introduced to detect unfavorable outcomes in sepsis patients. This study aims to identify pentraxin 3 (PTX3) as a predictor of sepsis in patients who are critically ill and admitted to intensive care units.Materials and methods: This prospective observational survey purposively included 100 patients with sepsis identified by the Surviving Sepsis Campaign guidelines in the medical intensive care unit at one of the apex care centers in North India. Socio-demographic and clinical profiles were collected using a structured and validated checklist. Simple and multi-linear regression analyses were used to determine PTX3 as a predictor of sepsis.Results: A total of 100 patients were prospectively observed. Among them, 61% were males, and 39% were females, with a mean age of 50.78 (±13.53) years. From nine potential predictors, lactate (95% CI: 1.048-1.890, B: 1.469, p < 0.001), procalcitonin (95% CI: 0.136-0.270, B: 0.203, p < 0.001), and SOFA (Sequential Organ Failure Assessment) scores (95% CI: 0.112-0.450, B: 0.281, p = 0.001) significantly predict the changes in PTX3 level (R-square: 0.842, adjusted R-square: 0.826) in patients.Conclusions: PTX3 was found to correlate with the severity of sepsis as SOFA score and other markers like lactate, procalcitonin, and APACHE-II (Acute Physiology and Chronic Health Evaluation II) score.

Association Between Time to Source Control in Sepsis and 90-Day Mortality

Rapid source control is recommended to improve patient outcomes in sepsis. Yet there are few data to guide how rapidly source control is required. To determine the association between time to source control and patient outcomes in community-acquired sepsis. Multihospital integrated health care system cohort study of hospitalized adults (January 1, 2013, to December 31, 2017) with community-acquired sepsis as defined by Sepsis-3 who underwent source control procedures. Follow-up continued through January 1, 2019, and data analyses were completed March 17, 2022. Early (<6 hours) compared with late (6-36 hours) source control as well as each hour of source control delay (1-36 hours) from sepsis onset. Multivariable models were clustered at the level of hospital with adjustment for patient factors, sepsis severity, resource availability, and the physiologic stress of procedures generating adjusted odds ratios (aOR) and 95% CI. Of 4962 patients with sepsis (mean [SD] age, 62 [16] years; 52% male; 85% White; mean [SD] Sequential Organ Failure Assessment score, 3.8 [2.5]), source control occurred at a median (IQR) of 15.4 hours (5.5-21.7) after sepsis onset, with 1315 patients (27%) undergoing source control within 6 hours. The crude 90-day mortality was similar for early and late source control (n = 177 [14%] vs n = 529 [15%]; P = .35). In multivariable models, early source control was associated with decreased risk-adjusted odds of 90-day mortality (aOR, 0.71; 95% CI, 0.63-0.80). This association was greater among gastrointestinal and abdominal (aOR, 0.56; 95% CI, 0.43-0.80) and soft tissue interventions (aOR, 0.72; 95% CI, 0.55-0.95) compared with orthopedic and cranial interventions (aOR, 1.33; 95% CI, 0.96-1.83; P < .001 for interaction). Source control within 6 hours of community-acquired sepsis onset was associated with a reduced risk-adjusted odds of 90-day mortality. Prioritizing the rapid identification of septic foci and initiation of source control interventions can reduce the number of avoidable deaths among patients with sepsis.

A nationwide study on characteristics and outcome of cancer patients with sepsis requiring intensive care

Background Sepsis is the leading cause of admission to the intensive care unit (ICU) for cancer patients and survival rates have historically been low. The aims of this nationwide cohort study were to describe the characteristics and outcomes of cancer patients admitted to the ICU with sepsis compared with other sepsis patients requiring ICU admission. Material and methods This was a retrospective, observational study. All adult admissions to Icelandic ICUs during years 2006, 2008, 2010, 2012, 2014 and 2016 were screened for severe sepsis or septic shock by ACCP/SCCM criteria. Clinical characteristics and outcomes of sepsis patients with cancer were compared to those without cancer. Results In the study period, 235 of 971 (24%) patients admitted to Icelandic ICUs because of sepsis had cancer, most often a solid tumour (100), followed by metastatic tumours (69) and haematological malignancies (66). Infections were more often hospital-acquired in cancer patients (52%) than other sepsis patients (18%, p < 0.001) and sites of infections differed, with abdominal infections being most common in patients with solid and metastatic tumours but lungs and bloodstream infections in haematological malignancies. The length of stay in the ICU was shorter for sepsis patients with metastatic disease than other sepsis patients (2 vs. 4 days, p < 0.001) and they were more likely to have treatment limitations (52 vs. 19%, p < 0.05). Median survival of patients with metastatic disease was 19 days from ICU admission. The 28-day mortality (25%) of solid tumour patients was comparable to that of sepsis patients without cancer (20%, p < 0.001). Conclusions Cancer is a common comorbidity in patients admitted to the ICU with sepsis. The clinical presentation and outcome differs between cancer types. Individuals with metastatic cancer were unlikely to receive prolonged invasive ICU care treatment. Comparable short-term outcome was found for patients with solid tumours and no cancer.

Tp-Te Interval and Tp-Te/QT Ratio Are Valuable Tools in Predicting Poor Outcome in Sepsis Patients.

ObjectiveAbout 50% of patients with sepsis have different degrees of myocardial inhibition, known as sepsis-induced myocardial dysfunction (SMD), which increases the mortality rate of sepsis. Tp-Te interval and Tp-Te/QT ratio reflect ventricular transmural dispersion repolarization (TDR), and have good predictive value for death in patients with heart disease. This study aimed to investigate the prognostic value of Tp-Te and Tp-Te/QT in patients with sepsis.MethodsThe current study included a total of 625 participants: 201 patients with sepsis, 213 patients with heart failure, and 211 healthy participants. According to the severity and outcome, the patients with sepsis were divided into the sepsis group and the septic shock group, and the death group and the survival group to explore the differences of indicators among subgroups of sepsis. The ROC curve was used to analyze the predictive value of the indicators for deaths of patients with sepsis and calculate the cutoff point. Then, we investigated the incidence of arrhythmia in patients with sepsis with different TDR. The correlation between Tp-Te/QT and the commonly used predictive indicators in ICU was also discussed.Results(1) Tp-Te and Tp-Te/QT in patients with sepsis and heart failure (HF) were significantly higher than the control group (p < 0.01). (2) Compared with patients with sepsis, the increase of Tp-Te and Tp-Te/QT is more prominent in patients with HF. Especially, the increase of the Tp-Te/QT was statistically significant (p < 0.001). (3) compared with patients with sepsis (no shock), the Tp-Te, Tp-Te/QT, and SOFA were increased in patients with septic shock (p < 0.05). (4) In the death group, Tp-Te /QT, SOFA, and Apache-II were higher; LVEF was lower than the survival group (p < 0.05). (5) ROC curves showed that Tp-Te/QT, SOFA, and LVEF have predictive values for death (p < 0.05; AUC = 0.808, 0.716, 0.412). The cutoff point of Tp-Te/QT was 0.32. (6) The incidence of arrhythmia is different in patients with sepsis with different TDR. (7) There is a significant correlation between Tp-Te/QT and SOFA (p < 0.001, r = 0.79).ConclusionTDR in patients with sepsis is significantly increased, which was between healthy population and patients with HF. Tp-Te and Tp-Te/QT are effective indicators to reflect the severity and poor outcome of patients with sepsis.

Characteristics and outcomes of sepsis patients with and without COVID-19

BackgroundThe aim of this study was to describe and compare clinical characteristics and outcomes in critically ill septic patients with and without COVID-19. MethodsFrom February 2020 to March 2021, patients from surgical and medical ICUs at the University Hospital Dresden were screened for sepsis. Patient characteristics and outcomes were assessed descriptively. Patient survival was analyzed using the Kaplan-Meier estimator. Associations between in-hospital mortality and risk factors were modeled using robust Poisson regression, which facilitates derivation of adjusted relative risks. ResultsIn 177 ICU patients treated for sepsis, COVID-19 was diagnosed and compared to 191 septic ICU patients without COVID-19. Age and sex did not differ significantly between sepsis patients with and without COVID-19, but SOFA score at ICU admission was significantly higher in septic COVID-19 patients. In-hospital mortality was significantly higher in COVID-19 patients with 59% compared to 29% in Non-COVID patients. Statistical analysis resulted in an adjusted relative risk for in-hospital mortality of 1.74 (95%-CI=1.35–2–24) in the presence of COVID-19 compared to other septic patients. Age, procalcitonin maximum value over 2 ng/ml, need for renal replacement therapy, need for invasive ventilation and septic shock were identified as additional risk factors for in-hospital mortality. ConclusionCOVID-19 was identified as independent risk factor for higher in-hospital mortality in sepsis patients. The need for invasive ventilation and renal replacement therapy as well as the presence of septic shock and higher PCT should be considered to identify high-risk patients.