Predictor Of Sepsis In Patients Research Articles

The Role of Monocyte Distribution Width in the Early Prediction of Sepsis in Patients Undergoing Cardiovascular Surgery: A Cross-Sectional Study.

Background and Objectives: This is the first study to examine the role of monocyte distribution width (MDW) in predicting sepsis after cardiovascular surgery. Methods: This study included 43 consecutive patients who had undergone cardiovascular surgery between July 2021 and July 2022. All patients were examined at the following three time points (TPs): preoperative period (TP1), postoperative at 24 h (TP2), and discharge (TP3). SOFA score, leukocyte count, neutrophil-to-lymphocyte ratio (NLR), MDW, C-reactive protein (CRP), and procalcitonin (PCT) levels were tested at each TPs. The Sepsis-3 criteria were used to diagnose patients with sepsis. Results: The mean values of all variables (leukocyte count, NLR, MDW, CRP, and PCT levels) were significantly higher at TP2 and TP3 than at TP1 (p < 0.05). All these values were significantly higher at TP2 than at TP3 (p < 0.05). Patients with sepsis had significantly higher mean values for leukocyte count, NLR, MDW, CRP, and PCT levels than those without sepsis (p < 0.05). There was a significant correlation between MDW and inflammatory markers (CRP, PCT, and NLR) during the three time periods (p < 0.05). According to the ROC analysis, the optimal MDW cutoff value with the highest sensitivity and specificity for predicting sepsis in the postoperative period was 20.5. Conclusions: Our findings indicate that elevated MDW levels may be a valuable predictor of sepsis in patients following cardiovascular surgery.

Clinical and time-related predictors of sepsis in patients with obstructive uropathy due to ureteral stones in the emergency setting.

Well-defined clinical predictors of sepsis after upper tract drainage for obstructive uropathy due to ureteral stones are needed. We aim to determine whether sepsis after decompression of the upper urinary tract may be predicted by clinical and time-related factors, specifically delay time from symptom onset to hospital presentation (StH) and from hospital presentation to surgical decompression (HtD). In this single-center retrospective study, data from 196 consecutive patients presenting to the emergency department for obstructive uropathy due to ureteral stones and submitted to surgical decompression were evaluated. Postoperative sepsis was defined as an acute increase in ≥ 2 SOFA points and documented blood or urine cultures. Median StH and HtD were 24 (6-48) and 17 (10-30) hours, respectively. Thirty-three (16.8%) patients developed sepsis. Septic patients were more frequently female (75.8% vs. 37.4%, p < 0.001), had higher preoperative max body temperature (p < 0.001), white blood cells (WBC) count (p < 0.01), C-reactive protein (CRP) values (p < 0.001) and larger stone diameter (7.2 vs. 6mm, p = 0.02). StH and HtD did not differ according to sepsis status. Time for WBC normalization and CRP halving were longer for septic patients (all p < 0.02). At multivariable logistic regression analysis, max body temperature ≥ 38°C (OR 21.5; p < 0.001), female gender (OR 3.6; p = 0.02) and higher CRP (OR 1.1; p < 0.001) were independently associated with sepsis status. Clinical and laboratory parameters are associated with an increased risk of sepsis after decompression. StH and HtD timing are not associated with higher sepsis rates. In selected patients, urinary decompression could be delayed or primary ureteroscopy could be considered.

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.

A Novel Nomogram for Predicting Post-Operative Sepsis for Patients With Solitary, Unilateral and Proximal Ureteral Stones After Treatment Using Percutaneous Nephrolithotomy or Flexible Ureteroscopy.

BackgroundThe postoperative sepsis is a latent fatal complication for both flexible ureteroscopy (fURS) and percutaneous nephrolithotomy (PNL). An effective predictive model constructed by readily available clinical markers is urgently needed to reduce postoperative adverse events caused by infection. This study aims to determine the pre-operative predictors of sepsis in patients with unilateral, solitary, and proximal ureteral stones after fURS and PNL.MethodsWe retrospectively enrolled 910 patients with solitary proximal ureteral stone with stone size 10–20 mm who underwent fURS or PNL from Tongji Hospital's database, including 412 fURS cases and 498 PNL cases. We used the least absolute shrinkage and selection operator (LASSO) regression and multivariate logistic regression analysis to identify the risk factors for sepsis. Finally, a nomogram was assembled utilizing these risk factors.ResultsIn this study, 49 patients (5.4%) developed sepsis after fURS or PNL surgery. Lasso regression showed postoperative sepsis was associated with gender (female), pre-operative fever, serum albumin (<35 g/L), positive urine culture, serum WBC (≥10,000 cells/ml), serum neutrophil, positive urine nitrite and operation type (fURS). The multivariate logistic analysis indicated that positive urine culture (odds ratio [OR] = 5.9092, 95% CI [2.6425–13.2140], p < 0.0001) and fURS (OR = 1.9348, 95% CI [1.0219–3.6631], p = 0.0427) were independent risk factors of sepsis and albumin ≥ 35g/L (OR = 0.4321, 95% CI [0.2054–0.9089], p = 0.0270) was independent protective factor of sepsis. A nomogram was constructed and exhibited favorable discrimination (area under receiver operating characteristic curve was 0.78), calibration [Hosmer–Lemeshow (HL) test p = 0.904], and net benefits displayed by decision curve analysis (DCA).ConclusionsPatients who underwent fURS compared to PNL or have certain pre-operative characteristics, such as albumin <35 g/L and positive urine culture, are more likely to develop postoperative sepsis. Cautious preoperative evaluation and appropriate operation type are crucial to reducing serious infectious events after surgery, especially for patients with solitary, unilateral, and proximal ureteral stones sized 10–20 mm.

A0259 - Clinical and time-related predictors of sepsis in patients with obstructive uropathy due to ureteral stones in the emergency setting

A0259 - Clinical and time-related predictors of sepsis in patients with obstructive uropathy due to ureteral stones in the emergency setting

Impact Factors and an Efficient Nomogram for Predicting the Occurrence of Sepsis after Percutaneous Nephrolithotomy.

Introduction To describe the clinical parameters of urinary stones and investigate the preoperative predictors of sepsis in patients following percutaneous nephrolithotomy (PCNL). Patients and Methods. A retrospective study of patients who underwent PCNL between August 2017 and December 2019 was performed. The patients were divided into the sepsis and nonsepsis groups according to whether they had sepsis, and their data were compared for further analysis. Results Fifteen (6.1%) patients matching in age, gender, body mass index (BMI), and the number of access variables were included in the sepsis group. The multivariate analysis demonstrated that the staghorn calculi (OR: 12.206, P < 0.001) and positive midstream urine culture (OR: 16.505, P < 0.001) were independent risk factors of sepsis, while preoperative renal fistula (OR: 0.122, P < 0.001) was a protective factor of sepsis. The three factors were ultimately selected to develop a nomogram to predict the probability of sepsis. The new nomogram was well calibrated and had higher diagnostic accuracy (the area under the curve: 0.916). Conclusions Our study reveals that patients with complex stones and positive bacteriuria are associated with a significantly high risk of sepsis after surgery. The removal of obstruction before operation under certain conditions might be a reliable protective factor of sepsis.

Early biochemical predictors of sepsis in patients with burn injury: current status and future perspectives

Sepsis is the leading cause of morbidity and mortality in patients with burn injury and emerges as a clinical challenge for both emergency specialists and critical care staff. Since early diagnosis and appropriate treatment are known to be the milestones of sepsis management, use of biomarkers in diagnosis is highly recommended in the initial stage of sepsis. Although currently used Procalcitonin, as a traditional marker, may accurately indicate the presence of a systemic inflammation in burn patients, there is a need for more accurate markers of sepsis in burn patients. For now, use of a combination of markers may be suggested for a more accurate diagnosis. In the near future, gene therapy may make not only early prediction, but also appropriate treatment of sepsis in burn patients possible. In this article, we aimed to clarify roles of current biomarkers in early diagnosis of sepsis in burn patients and make future reflections in this growing field.

Time series analysis of delta neutrophil index as the predictor of sepsis in patients with acute poisoning.

Delta neutrophil index (DNI), which reflects the fraction of immature granulocytes, is used to detect infection and sepsis from noninfectious conditions, but few studies have evaluated in the early stage of acute poisoning. This retrospective observational study was performed on acute poisoning patients who visited to the emergency department (ED) and were consecutively admitted in intensive care units over 18-month period. The serial DNI, conventional inflammatory biomarkers, and culture results were obtained in the ED and after admission. The outcomes were the identification of sepsis, bacteremia, and 30-day mortality. Of 166 patients (mean age, 56.0 years) in this cohort, 59 (35.5%) had sepsis and 29 (17.5%) had bacteremia. Initial and peak DNI fractions 24 h after ED admission were strong independent predictors of sepsis development. Analysis of the area under the curve according to multiple receiver operating characteristics showed that DNI had a higher capability to predict sepsis than other parameters (0.815 for DNI, 0.700 for procalcitonin, 0.681 for C-reactive protein, and 0.741 for white blood cell). Using multivariable logistic regression analysis, it was found that DNI was an independent predictor of sepsis (95% confidence interval (CI) of odds: 1.03-1.18) and bacteremia (95% CI: 1.01-1.14). Therefore, initial and serial measurement of DNI may serve as useful risk predictor for development of sepsis or bacteremia in acute poisoning.

Comparison of the delta neutrophil index with procalcitonin, erythrocyte sedimentation rate, and C-reactive protein as predictors of sepsis in patients with acute prostatitis.

BackgroundWe investigated the usefulness of inflammatory markers including the delta neutrophil index (DNI), erythrocyte sedimentation rate, C-reactive protein, and procalcitonin as early predictors of sepsis in patients with acute prostatitis (AP). In addition, we evaluated the efficacy of intermittent catheterization for the initial management of acute urinary retention (AUR) in patients with AP.Materials and methodsAll patients who presented to the emergency department and were admitted to the urology department from January 2011 to December 2013 were retrospectively reviewed. The clinical features, prostate-specific antigen levels, inflammatory marker levels, and urine and blood culture results were obtained from medical records. Patients who underwent urethrocystoscopy or prostate biopsy within 7 days were excluded.ResultsOf 132 patients (mean age, 64.8 years) in this cohort, 17 (12.9%) had sepsis and 22 (16.7%) had positive blood cultures. Escherichia coli was the most common isolate in blood and urine cultures. In multivariate analysis, the DNI and prostate-specific antigen were identified as predictors of sepsis. The DNI was a significant prognostic factor for bacteremia. In patients with AP, procalcitonin was not a significant predictor of sepsis. Of 19 patients with AUR, 10 needed Foley catheterization because of refractory AUR. C-reactive protein was a significant predictor of failure of the initial management of AUR.ConclusionsThe DNI is useful as a predictive factor for sepsis and bacteremia in patients with AP. Without mandatory cystostomy, intermittent catheterization could be one of the useful management options of AUR in patients with AP.

C-reactive protein: an early predictor of sepsis in patients with thermal burns

Background: Due to the high mortality rate of established sepsis in patients with burn injuries, it would be beneficial if the onset can be predicted before it is fully established. The objective of the study was to estimate the predictive value of C-reactive protein in thermal burns patients. The secondary objective was to determine how much earlier CRP level allowed the prediction of sepsis in these patients.Methods: This was a case-control study, conducted prospectively on 60 human patients admitted with thermal burns. Cases were those who developed sepsis following burns and the controls were burns patients without sepsis. All patients underwent serial estimation of C-reactive protein values on alternative days, along with other blood parameters. From the data, the predictive value of C-reactive protein in sepsis was analysed.Results: A significant higher value of C-reactive protein was found in septic patients. Rise in serum C-reactive protein level predicted sepsis with an efficacy of 87%, while the sensitivity was found to be 93% and the specificity was 80%, with a significant odds ratio of 56. Also a pre-defined rise in C-reactive protein predicted the onset of sepsis about 2 days before the clinical onset.Conclusions: C-reactive protein is a useful indicator for sepsis in burns patients. In combination with clinical sepsis markers, C-reactive protein can be used to initiate intensive monitoring and appropriate antibiotic therapy.

PREDICTORS OF SEPSIS IN PATIENTS WITH URGENT CONDITIONS

Background. Given that the imbalance in pro- and anti-inflammatory cytokines plays an important role in the pathogenesis of sepsis, estimation of its prognostic value in patients in the early stages from the disease onset or injury is of concern. Aim of study. To study changes in concentrations of biomarkers for inflammation on day 1–2 in patients with a high risk for sepsis. Materials and methods. On day 1-2 from the admission, blood tests were performed in 48 patients with a high risk of sepsis: 9 — with mediastinitis, 6 — with widespread purulent peritonitis, 24 — with severe concomitant injury, 9 — with acute destructive pancreatitis. Sepsis occurred in 28 patients of group 1. Group 2 consisted of 20 patients without sepsis. We investigated concentration of procalcitonin, C-reactive protein, interleukine-6 and -10, lipopolysaccharide-bindidng protein and soluble receptor for interleukine-2. Result. Significant differences in concentrations of groups were identified on day 1-2 in CRP (P=0.00009), IL-2R (P=0.0005) LBP (P=0.00002) and IL-6 (P=0.0192). Conclusion. Hyper LBP and CRP on the background of high IL-2R, IL-6, increase the risk of sepsis.

Independent risk factors for sepsis in patients with large area burns

Objective To determine the independent risk factors for sepsis in patients with large area burns. Methods The study enrolled 307 patients with large area burns treated from June 2014 to June 2015. Related variables included age, gender, visit time, emergency eschar open, burn index, tangential excision of eschar during shock stage, delayed resuscitation during shock stage, oxygen pressure (PaO2), carbon dioxide pressure (PaCO2), assisted ventilation mode, mechanical ventilation time, inhalation injury, prophylactic tracheotomy, continuous lactic acid rise, refractory hypernatremia, heart-lung disease history, and diabetes history. Correlation of the variables with the incidence of sepsis was observed. Independent predictors of sepsis in patients with large burns were differentiated using the Logistic regression analysis. Results Delayed resuscitation during shock period (OR=1.747, 95% CI 1.822-7.431, P<0.05), continuous lactic acid rise (OR=1.758, 95%CI 1.137-4.002, P<0.05), refractory hypernatremia (OR=2.985, 95%CI 1.074-6.782, P<0.05), moderate and severe inhalation injury(OR=14.764, 95%CI 0.892-47.323, P<0.05) and burn index (OR=5.017, 95%CI 1.075-23.572, P<0.05) were found be independently associated with sepsis in patients with large burns. Conclusions These independent risk factors for sepsis in large area burn patients deserve more attention. Early and timely treatment measures may reduce the incidence of sepsis. Key words: Burns; Sepsis; Risk factors

Profile of plasma amino acids values as a predictor of sepsis in patients following living donor liver transplantation: Special reference to sarcopenia and postoperative early nutrition.

Sarcopenia is an independent predictor of mortality and sepsis after living donor liver transplantation (LDLT). However, the exact mechanisms by which sarcopenia affects poor prognosis or worse immunity against postoperative sepsis are unclear, particularly regarding muscular amino acid metabolism, and the authors aimed to identify the role of plasma amino acids in sarcopenia by retrospective study. The area of the psoas muscle in 228 recipients of LDLT was retrospectively measured by dynamic computed tomography. Additionally, plasma amino acid levels were measured both pre- and postoperatively. The impact of plasma amino acids for postoperative sepsis and the relationship between sarcopenia and early nutrition after LDLT were analyzed. Among the plasma amino acids, only leucine, isoleucine and glutamine in patients with sarcopenia were significantly lower than those without sarcopenia (each, P < 0.05). Multivariate analysis identified the lower plasma glutamine levels as a risk factor of postoperative sepsis after LDLT (odds ratio 5.371, P = 0.002). In sarcopenia patients, plasma glutamine levels after LDLT were significantly decreased compared with before LDLT in patients both with and without postoperative early nutrition. However, in non-sarcopenia patients with early nutrition, plasma glutamine levels after LDLT were comparable with those before LDLT. This is the first report to study the profile of plasma amino acid change before and after LDLT. Low preoperative glutamine values were an independent risk factor for predicting postoperative sepsis. The efficacy of postoperative early nutrition may prevent postoperative sepsis by improving glutamine levels.