Initial Serum Lactate Research Articles

Normal Saline Solution or Lactated Ringer's Solution to Enhance Lactate Clearance in Septic Patients After Initial Resuscitation in the ED: A Retrospective Cohort Trial.

ObjectiveTo compare the effect of isotonic crystalloid solutions between lactated Ringer’s solution (LRS) and normal saline solution (NSS) on lactate clearance in septic patients at the emergency department (ED).Materials and MethodsThis study is a single-center retrospective chart review. The study enrolled patients older than 18 years with sepsis and initial serum lactate level >2 mg/dL in the ED. The primary outcome was to determine which isotonic solution was better for serum lactate clearance in septic patients. The secondary outcomes were serum creatinine change within 24 h and the 48-h survival rate after admission.ResultsA total of 120 patients were enrolled with a median crystalloid volume administered in the ED of 1000 mL. Within 2 h of resuscitation, there was no difference in lactate clearance between the LRS and NSS groups with median values of 29.2% and 25%, respectively (P=0.839). The 48-h survival rate after admission did not differ between the LRS and NSS groups with median values of 90% and 86%, respectively. Both isotonic solutions increased serum creatinine levels within 24 h of treatment with median values of 0.3 for each group (P=0.647).ConclusionAmong septic patients in the ED treated with NSS or LRS, there was no difference in lactate clearance, serum creatinine change within 24 h, or 48-h survival. However, several factors were associated with increased lactate levels, such as older age and use of vasopressors and immunosuppressive agents.

Sublingual microcirculation predicts survival after out-of-hospital cardiac arrest.

Despite successful resuscitation with return of spontaneous circulation (ROSC), the prediction of survival in patients suffering out-of-hospital cardiac arrest (OHCA) remains difficult. Several studies have shown alterations in sublingual microcirculation in the critical ill. We hypothesized that early alterations in sublingual microcirculation may predict short-term survival after OHCA. We prospectively included all adults admitted to our university hospital between April and September 2019 with ROSC following OHCA. Sidestream dark-field microscopy to obtain sublingual microcirculation was performed at admission and after 6, 12 and 24hours. Primary outcome was survival until discharge. Twenty-five patients were included. Six hours after ROSC, the proportion of perfused small vessels (PPVsmall ) was lower in non-survivors than in survivors (85±7.9 vs. 75±6.6%; p=.01). PPVsmall did not correlate with serum lactate. Stratification for survival with cutoff values >78.4% for PPVsmall 6h post-admission and <5.15mmol/l for initial serum lactate as suggested by ROC-Analyses results in a positive predictive value of 100% and a negative one of 67% for our study population. Estimating short-term prognosis of OHCA patients with ROSC may be supported by measuring the PPVsmall at the sublingual microcirculation 6hours after admission.

Clinical significance of lactate clearance in patients with cardiogenic shock: results from the RESCUE registry

BackgroundLimited data are available on the clinical significance of lactate clearance (LC) in patients with cardiogenic shock (CS). This study investigated the prognostic role of LC in CS patients.MethodsWe analyzed data from 628 patients in the RESCUE registry, a multicenter, observational cohort enrolled between January 2014 and December 2018. Univariable logistic regression analysis was performed to determine the prognostic implications of 24 h LC, and then patients were divided into two groups according to the cut-off value of 24 h LC (high lactate clearance [HLC] group vs. low lactate clearance [LLC] group). The primary outcome was in-hospital mortality. We also assessed all-cause mortality at 12 month follow-up and compared the prognostic performance of 24 h LC according to initial serum lactate level.ResultsIn the univariable logistic regression analysis, 24 h LC was associated with in-hospital mortality (odds ratio 0.989, 95% confidence interval [CI] 0.985–0.993, p < 0.001), and the cut-off value for the LC of the study population was 64%. The HLC group (initial 24 h LC ≥ 64%, n = 333) had a significantly lower incidence of in-hospital death than the LLC group (n = 295) (25.5% in the HLC group vs. 42.7% in the LLC group, p < 0.001). During 12 months of follow-up, the cumulative incidence of all-cause death was significantly lower in the HLC group than in the LLC group (33.0% vs. 48.8%; hazard ratio 0.55; 95% CI 0.42–0.70; p < 0.001). In subgroup analysis, 24 h LC predicted in-hospital mortality better in patients with initial serum lactate > 5 mmol/L than in those with serum lactate ≤ 5 mmol/L (c-statistics of initial serum lactate > 5 mmol/L = 0.782 vs. c-statistics of initial serum lactate ≤ 5 mmol/L = 0.660, p = 0.011).ConclusionsHigher LC during the early phase of CS was associated with reduced risk of in-hospital and 12 month all-cause mortalities. Patients with LC ≥ 64% during the 24 h after CS onset could expect a favorable prognosis, especially those with an initial serum lactate > 5 mmol/L.Trial registration: RESCUE (REtrospective and prospective observational Study to investigate Clinical oUtcomes and Efficacy of left ventricular assist device for Korean patients with cardiogenic shock), NCT02985008, Registered December 5, 2016—retrospectively and prospectively registered, https://clinicaltrials.gov/ct2/show/record/NCT02985008

Lactate Clearance Versus Base Deficit Correction in Monotoring of Septic Shock

Abstract Background Tissue perfusion and oxygenation monitoring is the fundamental of management to immediately identify and properly manage (impending) organ dysfunction in septic shock. This is a study of a prospective randomized trial that aims to comparing the prognostic value of lactate clearance versus base deficit correction as an indicator of tissue perfusion in septic shock, trying to prove the superiority of one over the other. Objective To assess the clinical utility of lactate clearance and arterial base deficit correction in predicting mortality in septic shock. Patients and Methods This is a Prospective randomized observational study that was conducted to assess the clinical utility of lactate clearance and arterial base deficit in predicting mortality in septic shock. This study included forty patients who were divided into two equal groups; each of twenty patients, group I (non-survivors), and group II (survivors). Results In this study, the base deficit values revealed statistically notable difference between the two groups at admission, 18 hours, 24 hours and 2 days of admission. The values revealed no notable difference at the 3rd. 4th, and 5th day of admission. At the 6th and 7th day of admission, the base deficit started to increase again in the non-survivor group with statistically notable increase in the values as compared to the survivor group. The cutoff point of base deficit to differentiate between nonsurvivors from survivors was &amp;gt; 11.43 with 62% sensitivity and 100% specificity. In this study, initial serum lactate levels at admission revealed higher accuracy in prediction of mortality as compared with initial base deficit. Conclusion Lactate clearance is a better predictor of mortality and morbidity than base deficit correction.

Initial serum lactate levels of COVID-19 patients

Initial serum lactate levels of COVID-19 patients

Role of Arterial Serum Lactate as a Predictor of Undifferentiated Shock on Admission and its Outcome- A Cohort Study

Introduction: Patients with elevated serum lactate levels may be at risk for considerable morbidity and mortality and require a prompt, thoughtful and systematic approach for diagnosis and treatment. Aim: To find an association of on admission arterial serum lactate with outcome in Intensive Care Unit (ICU) patients. Materials and Methods: This observational cohort study was conducted on 168 patients at Poona Hospital and Research Centre, Pune, India, between June 2018 to November 2019 after obtaining Institutional Ethical Clearance. The patients included were above 18 years of age who had Systolic Blood Pressure (SBP) &lt;90 mmHg, Heart Rate (HR) &gt;100/min and Respiratory Rate (RR) &gt;20/min. The arterial serum lactate level were examined on the day of admission, 12 hours and 24 hours. The need of ionotropic support, duration of ICU stay and mortality in one month was noted. The primary outcome measures were to study the association of on admission arterial serum lactate level with a duration of ICU stay and in-hospital mortality, whereas the secondary outcome measure was to study the association of on admission arterial serum lactate with the requirement of ionotropic support. Analysis of data was done using Statistical Package for Social Sciences for Windows, version 20.0. Results: The incidence in-hospital mortality was 20 (22.7%) out of 88 and 3 (3.8%) out of 80 in patients whose serum lactate levels on admission were &gt;36 mg/dL and ≤36 mg/dL, respectively (p-value=0.002). The median duration of ICU stay was six and three days in patients whose serum lactate levels on admission were &gt;36 mg/dL and ≤36 mg/dL, respectively (p-value=0.001). A 87 (98.9%) patients whose serum lactate levels &gt;36 mg/dL on admission had the higher requirement of inotropes as compared to 35 (50.7%) patients whose serum lactate levels were ≤36 mg/dL. The percentage of patients whose serum lactate level &gt;36 mg/dL, had a significantly higher Quick Sequential Organ Failure Assessment (qSOFA) scores and higher Shock Index (SI). There was a statistically significant positive correlation between serum lactate levels and qSOFA score (r=0.555) and SI (r=0.559). Conclusion: Initial serum lactate level was associated with higher in-hospital mortality, the higher requirement of inotropic support and longer duration of ICU stay.

Serum Lactate: A Predictor of Septic Shock in Childhood Cancers with Febrile Neutropenia.

Early recognition and management are the key elements to prevent febrile neutropenia associated mortality. The prospective observational study aimed to investigate prognostic accuracy of serum lactate to predict septic shock within 48 hours among hemodynamically stable children with febrile neutropenia. In all, 99 pediatric oncology patients who developed febrile neutropenia were enrolled in the study. Clinical information during 48 hours and serum lactate at the time of enrollment were analyzed. Among 99 participating patients, 10 developed septic shock and 4 of those expired. No significant difference was found of patients’ baseline characteristics and basic laboratory parameters between patients with and without septic shock. Serum lactate was significantly elevated among patients developing septic shock (P-value < .001) and those who expired (P-value .002). Receiver operating characteristic (ROC) curve was created to identify the best cutoff value for initial serum lactate associated with the development of septic shock within 48 hours. Baseline serum lactate more than 2.5 mmol/L showed the largest area under the ROC curve to predict the septic shock development within 48 hours (ROC area, 0.90; 95% confidence interval [CI], 0.81-0.98), with sensitivity, specificity, negative predictive value, and accuracy of 80.0%, 92.1%, 97.6%, and 90.9%, respectively. Serum lactate level determined early at the time of febrile neutropenia was an effective surrogate marker for developing septic shock within 48 hours among hemodynamically stable, pediatric oncology patients. The level more than 2.5 mmol/L was the best threshold to start preemptive aggressive hemodynamic monitoring and prompt treatment to ensure adequate tissue perfusion.

The sensitivity of qSOFA calculated at triage and during emergency department treatment to rapidly identify sepsis patients

The quick sequential organ failure assessment (qSOFA) score has been proposed as a means to rapidly identify adult patients with suspected infection, in pre-hospital, Emergency Department (ED), or general hospital ward locations, who are in a high-risk category with increased likelihood of “poor outcomes:” a greater than 10% chance of dying or an increased likelihood of spending 3 or more days in the ICU. This score is intended to replace the use of systemic inflammatory response syndrome (SIRS) criteria as a screening tool; however, its role in ED screening and identification has yet to be fully elucidated. In this retrospective observational study, we explored the performance of triage qSOFA (tqSOFA), maximum qSOFA, and first initial serum lactate (> 3 mmol/L) at predicting in-hospital mortality and compared these results to those for the initial SIRS criteria obtained in triage. A total of 2859 sepsis cases were included and the in-hospital mortality rate was 14.4%. The sensitivity of tqSOFA ≥ 2 and maximum qSOFA ≥ 2 to predict in-hospital mortality were 33% and 69%, respectively. For comparison, the triage SIRS criteria and the initial lactate > 3 mmol/L had sensitivities of 82% and 65%, respectively. These results demonstrate that in a large ED sepsis database the earliest measurement of end organ impairment, tqSOFA, performed poorly at identifying patients at increased risk of mortality and maximum qSOFA did not significantly outperform initial serum lactate levels.

Relative Hyperlactatemia in the Emergency Department.

Objective: The clinical interpretation of lactate ≤ 2.00 mmol/L in emergency department (ED) patients is not well-characterized. This study aims to determine the optimal cutoff value for lactate within the reference range that predicts in-hospital mortality among ED patients.Methods: This was a retrospective study of adult patients presenting to a tertiary ED with an initial serum lactate level of <2.00 mmol/L. The primary outcome was in-hospital mortality. Youden's index was utilized to determine the optimal threshold that predicts mortality. Patients above the threshold were labeled as having relative hyperlactatemia.Results: During the study period, 1,638 patients were included. The mean age was 66.9 ± 18.6 years, 47.1% of the population were female, and the most prevalent comorbidity was hypertension (56.7%). The mean lactate level at presentation was 1.5 ± 0.3 mmol/L. In-hospital mortality was 3.8% in the overall population, and 16.2% were admitted to the ICU. A lactate level of 1.33 mmol/L was found to be the optimal cutoff that best discriminates between survivors and non-survivors. Relative hyperlactatemia was an independent predictor of in-hospital mortality (OR 1.78 C1.18–4.03; p = 0.02). Finally, relative hyperlactatemia was associated with increased mortality in patients without hypertension (4.7 vs. 1.1%; p = 0.008), as well as patients without diabetes or COPD.Conclusion: The optimal cutoff of initial serum lactate that discriminates between survivors and non-survivors in the ED is 1.33 mmol/L. Relative hyperlactatemia is associated with increased mortality in emergency department patients, and this interaction seems to be more important in healthy patients.

Lactate/Albumin Ratio as a Predictor of In-Hospital Mortality in Septic Patients Presenting to the Emergency Department.

Background: The aim of this study is to evaluate the prognostic value of the Lactate to Albumin (L/A) ratio compared to that of lactate only in predicting morbidity and mortality in sepsis patients.Methods: This was a single-center retrospective cohort study. All adult patients above the age of 18 with a diagnosis of sepsis who presented between January 1, 2014 and June 30, 2019 were included. The primary outcome was in-hospital mortality.Results: A total of 1,381 patients were included, 44% were female. Overall in-hospital mortality was 58.4% with the mortalities of sepsis and septic shock being 45.8 and 67%, respectively. 55.5% of patients were admitted to the intensive care unit. The area under the curve value for lactate was 0.61 (95% CI 0.57–0.65, p < 0.001) and for the L/A ratio was 0.67 (95% CI 0.63–0.70, p < 0.001). The cutoff generated was 1.22 (sensitivity 59%, specificity 62%) for the L/A ratio in all septic patients and 1.47 (sensitivity 60%, specificity 67%) in patients with septic shock. The L/A ratio was a predictor of in-hospital mortality (OR 1.53, CI 1.32–1.78, p < 0.001).Conclusion: The L/A ratio has better prognostic performance than initial serum lactate for in-hospital mortality in adult septic patients.

STAPLAg: a convenient early warning score for use in infected patients in the intensive care unit.

Sepsis is a life-threatening disease in the intensive care unit (ICU). The current diagnostic criteria for sequential organ failure assessment (SOFA) scores do not reflect the current understanding of sepsis. We developed a novel and convenient score to aid early prognosis.Retrospective multivariable regression analysis of 185 infected emergency ICU (EICU) patients was conducted to identify independent variables associated with death, to develop the new "STAPLAg" score; STAPLAg was then validated in an internal cohort (n = 106) and an external cohort (n = 78) and its predictive efficacy was compared with that of the initial SOFA score.Age, and initial serum albumin, sodium, PLR, troponin, and lactate tests in the emergency department were independent predictors of death in infected EICU patients, and were used to establish the STAPLAg score (area under the curve [AUC] 0.865). The initial SOFA score on admission was predictive of death (AUC 0.782). Applying the above categories to the derivation cohort yielded mortality risks of 7.7% for grade I, 56.3% for grade II, and 75.0% for grade III. Internal (AUC 0.884) and external (AUC 0.918) cohort validation indicated that the score had good predictive power.The STAPLAg score can be determined early in infected EICU patients, and exhibited better prognostic capacity than the initial SOFA score on admission in both internal and external cohorts. STAPLAg constitutes a new resource for use in the clinical diagnosis of sepsis and can also predict mortality in infected EICU patients. REGISTRATION NUMBER:: ChinCTR-PNC-16010288.

Percutaneous Left Ventricular Assist Device in Cardiogenic Shock: A Five-Year Single Canadian Center Initial Experience

BackgroundMechanical circulatory support in cardiogenic shock (CS) with percutaneous left ventricular assist devices (PVADs) has expanded rapidly, but there is a paucity of Canadian data. Conflicting observational reports have emerged regarding the benefit of PVADs in CS. We describe a 5-year experience with Impella CP for CS at a single Canadian tertiary care centre. MethodsConsecutive adult patients with CS supported with Impella CP were included. Comprehensive clinical data and outcomes were retrospectively assessed. We evaluated patient characteristics, patterns of care, in-hospital outcomes, 6-month survival, and predictors of survival. ResultsThirty-four patients were supported with Impella CP for CS over 5 years. A majority had acute myocardial infarction (94%) with advanced CS (68% Society for Cardiovascular Angiography and Intervention [SCAI] stage D or E). Survival to discharge was 58%. In patients who survived to discharge, 6-month survival was 100% with excellent functional status. SCAI CS stage and initial serum lactate showed significant associations with survival. There was also a trend towards improved survival with shorter door-to-PVAD time. Clinically significant bleeding was common (26%), and 3 patients had device-related vascular complications. ConclusionImpella CP may have a role in carefully selected patients with CS. The SCAI shock classification and serum lactate may facilitate patient selection, and minimizing door-to-support time as well as bleeding complications are important considerations. Further clinical investigations, particularly in a Canadian setting, will be necessary to establish the role of this new technology in CS.

The prognostic value of initial serum lactate for survival in postcardiac arrest patients undergoing cardiac catheterization.

We sought to investigate the prognostic value of serum lactate on survival in patients postcardiac arrest. Patients who experience cardiac arrest, in- or out-of-hospital, may have a poor outcome. Initial electrocardiograms may suggest ischemia as an underlying cause and urgent referral for catheterization occurs. It remains unclear which of these patients may suffer a poor outcome. We retrospectively reviewed all patients at our institution taken for urgent catheterization after cardiac arrest between January 2014 and September 2018. Three hundred and eighty four patients were referred urgently to the cath lab during this period, 50 with prior arrest. Sixty six percent underwent coronary intervention. The mean age of the entire cohort was 57 years. Thirty four percent were female, 40% had a history of coronary artery disease, and 94% were intubated at the time of cardiac catheterization. Overall survival to discharge was 40%. Survival in patients who underwent coronary intervention compared with those who did not was similar (45.5 vs. 29.4%, p = .27). Mean lactate level in survivors versus nonsurvivors was 4.7 ± 3.8 and 9.8 ± 4.7 mmol/L, respectively (p < .05). When divided into tertiles by serum lactate (< 4.5, 4.5-9, 9 mmol/L), survival to discharge was 75, 29.4, and 17.6%, respectively (p < .05). Initial serum lactate and age were independent predictors of in-hospital mortality. In patients undergoing cardiac catheterization following cardiac arrest, routine measurement of serum lactate is a useful and available laboratory test that may help identify patients at risk for a poor outcome.

Early Clinical Predictors of Neurological Outcome in Children With Asphyxial Out-of-Hospital Cardiac Arrest Treated With Therapeutic Hypothermia.

Aim: The aim of the current study was to identify early clinical predictors of neurologic outcome in children with asphyxial out-of-hospital cardiac arrest (OHCA) treated with therapeutic hypothermia.Methods: The present retrospective cohort study of comatose children treated with therapeutic hypothermia or normothermia after asphyxial OHCA was conducted between January 2010 and June 2018. All children aged between 1 month and 18 years of age, with a history of at least 3 min of chest compressions were eligible for inclusion. Their 6-month neurological outcomes were evaluated using the Pediatric Cerebral Performance Category (PCPC) score and early clinical predictors were determined.Results: A total of 100 patients met the eligibility criteria for the study. Sixty-four (64%) of the children were male, and the mean age of participants was 4.59 ± 5.45 years. Forty (40%) of the children had underlying disorders. The overall 1-month survival rate was 36%. Only 12 (12%) of the patients had favorable outcomes (PCPC ≤ 2). Thirty-four (34%) of the 100 children were receiving therapeutic hypothermia. In the univariate analysis, an initial lactate level of ≤ 80 mg/dL, a Glasgow coma scale (GCS) score of 5–8, a GCS motor score ≥4 and a present pupil reflex before therapeutic hypothermia, were significantly associated with favorable 6-month neurological outcomes. However, after the multivariate logistic analysis, only initial serum lactate level and GCS before therapeutic hypothermia were significantly associated with favorable 6-month neurological outcomes.Conclusion: Initial serum lactate level and GCS before therapeutic hypothermia were significantly associated with 6-month favorable neurological outcomes in pediatric asphyxial OHCA patients who were treated with therapeutic hypothermia. Therefore, these early clinical predictors could be helpful to facilitate future clinical research in children with asphyxial OHCA treated with therapeutic hypothermia.

Understanding the role of serum lactate as an end point in burn resuscitation

Context: Fluid resuscitation plays a significant role in burns treatment. Inappropriate resuscitation impacts morbidity and mortality. Urine output (UO), the current gold standard, alone, is not an adequate end point of fluid resuscitation in burns. Hence, we studied the utility of serum lactate levels as a reliable marker and end point of resuscitation. Aims: (a) To understand the role of serum lactate levels in burns as end point in acute burn resuscitation and (b) To assess its sensitivity and specificity. Settings and Design: Tertiary care hospital, urban setting, and cross-sectional study. Subjects and Methods: The study was done from September 2015 to July 2017. Sixty-four patients with thermal burns were included. Serum lactate levels were recorded at arrival, 8 h, 16 h, 24 h, and 48 h interval postburn incident. Hourly UO heart rate and mean arterial pressure were recorded for the outcome measures. Statistical Analysis Used: Chi-square test and nonparametric Mann–Whitney U-test. P ≤ 0.05 was considered statistically significant. Results: (a) The initial serum lactate levels at presentation were directly proportional to: The total body surface area and percent deep component of burns sustained Delay in starting resuscitation. b. Time taken for serum lactate levels to normalize is directly proportional to initial serum lactate level. At 16 h, serum lactate showed (94%) specificity, (53%) sensitivity, and at 48 h (85%) sensitivity, (44%) specificity. Conclusions: Serum lactate levels can help to monitor the adequacy of fluid resuscitation in burns. Serum lactate and UO, both, should be taken into consideration to determine the end point of resuscitation.

A Study on Shock Index in Early Diagnosis of Sepsis in Emergency Department of Tertiary Care Centre of Nepal

&#x0D; &#x0D; &#x0D; &#x0D; Introduction: Sepsis and its consequences, severe sepsis and septic shock is at menace in country like ours where infectious disease are at toll. Early diagnosis and treatment is very important to decrease the morbidity and mortality. Shock index is one of such tool that is very handy in these situations as this is just a mathematical calculation using heart rate(HR) and systolic blood pressure(SBP). The main aim of this study was to find the effectiveness of using SI as an adjunct to blood lactate in diagnosing patients in sepsis.&#x0D; Methods: This was an observational hospital-based study conducted at Emergency Department of TUTH, Maharajgunj on 104 patients, obtained by purposive sampling method, who had presented to the “Red Area”, aged between 18 to 65 years. These patients were screened for severe sepsis using triage vital signs, basic laboratory tests and an initial serum lactate level. Test characteristics were calculated for hyperlactatemia. I considered the following covariates in our analysis: heart rate &gt;90 beats/min; mean arterial pressure &lt;65 mmHg; respiratory rate &gt; 20 breaths/min; ≥2 SIRS including white blood cell count; SI &lt;0.6; SI 0.6 to 1; SI 1 to 1.4and SI ≥ 1.4. &#x0D; Results: There was a positive correlation between shock index and blood lactate level, r=0.2, n=104, p=0.042. No relationship was found between SI&gt;=1 and hyperlactemia, X2 (.285, N = 104) = 1, p =.594 and relationship was found between SI &gt;=0.7 and hyperlactemia, X2 (4.1, N = 104) = 1, p =.04. sensitivity and specificity for detecting hyperlactemia of SI&gt;=1, SI.=0.7, SIRS was 84% and 20%, 93% and 0%, 79% and 20% respectively.&#x0D; Conclusions: There was weak correlation between the lactate level and shock index with statistically significant correlation between the shock index grouped &gt;=0.7 and hyperlactatemia with high sensitivity and very low specificity.&#x0D; &#x0D; &#x0D; &#x0D;

The FASILA Score: A Novel Bio-Clinical Score to Predict Massive Blood Transfusion in Patients with Abdominal Trauma

BackgroundEarly identification of patients who may need massive blood transfusion remains a major challenge in trauma care. This study proposed a novel and easy-to-calculate prediction score using clinical and point of care laboratory findings in patients with abdominal trauma (AT).MethodsPatients with AT admitted to a trauma center in Qatar between 2014 and 2017 were retrospectively analyzed. The FASILA score was proposed and calculated using focused assessment with sonography in trauma (0 = negative, 1 = positive), Shock Index (SI) (0 = 0.50–0.69, 1 = 0.70–0.79, 2 = 0.80–0.89, and 3 ≥ 0.90), and initial serum lactate (0 ≤ 2.0, 1 = 2.0–4.0, and 2 ≥ 4.0 mmol/l). Outcome variables included mortality, laparotomy, and massive blood transfusion (MT). FASILA was compared to other prediction scores using receiver operating characteristics and areas under the curves. Bootstrap procedure was employed for internal validation.ResultsIn 1199 patients with a mean age of 31 ± 13.5 years, MT, MT protocol (MTP) activation, exploratory laparotomy (ExLap), and hospital mortality were related linearly with the FASILA score, Injury Severity Score, and total length of hospital stay. Initial hemoglobin, Revised Trauma Score (RTS), and Trauma Injury Severity Score (TRISS) were inversely proportional. FASILA scores correlated significantly with the Assessment of Blood Consumption (ABC) (r = 0.65), Revised Assessment of Bleeding and Transfusion (RABT) (r = 0.63), SI (r = 0.72), RTS (r = − 0.34), and Glasgow Coma Scale (r = − 0.32) and outperformed other predictive systems (RABT, ABC, and SI) in predicting MT, MTP, ExLap, and mortality.ConclusionsThe novel FASILA score performs well in patients with abdominal trauma and offers advantages over other scores.

2338. Early Predictors of Mortality in Neonatal Disseminated Herpes Simplex Virus Infection

BackgroundDisseminated neonatal herpes simplex virus (dHSV) infection is associated with substantial morbidity and an estimated case fatality rate of ~25% despite antiviral therapy. Contemporary data on predictors of mortality among infants with dHSV infection are limited.MethodsFrom January 2012 to December 2018, neonates with HSV infection were identified by the Virology database at Nationwide Children’s Hospital. Demographic, clinical, laboratory, and radiographic data were obtained from the infants’ electronic healthcare records to identify cases of dHSV infection and to determine possible predictor(s) of mortality. dHSV was defined as detection of HSV DNA by polymerase chain reaction (PCR) in blood, cerebrospinal fluid, or skin/eye/mouth, and evidence of hepatitis, pneumonitis, sepsis, or coagulopathy, with or without central nervous system involvement.ResultsOf 43 neonates with HSV infection, 12 (28%) infants (median [IQR] age: 8.5 [7–11] days) had dHSV and 6 (50%) died. Clinical and laboratory findings of neonates who survived vs. those who died are presented in Table 1. The median duration of symptoms at presentation was 1.5 [1–2] days. Among infants who died, the median duration of hospitalization to time of death was 1.5 days (range, 0 to 4 days). Clinical signs at presentation and blood semiquantiative viral loads (cycle threshold, Ct) were not different between infants who survived (Ct 18.0 [15.4–23.3]) and those who died (16.6 [13.4–23.3]; P > 0.05). Initial serum alanine aminotransferase (ALT), INR or lactate were not different between the two groups. However, initial serum median albumin concentration was lower among those who died vs. survivors (1.8 g/dL vs. 2.7 g/dL, P = 0.004). To assess the sensitivity and specificity of potential laboratory predictors of mortality, serum laboratory values were evaluated as follows (sensitivity, specificity): ALT > 800 (67%, 80%), INR > 2.7 (67%, 80%), serum lactate > 3 mmol/L (80%, 100%), and initial serum albumin < 2 g/dL (100%, 100%).ConclusionAlbumin concentrations < 2 g/dL at presentation correlated highly with mortality in neonatal dHSV infection, suggesting that hypoalbuminemia may reflect components of both viral sepsis and poor synthetic liver function. Larger cohorts of neonates with dHSV infection are needed to confirm this result. Disclosures All authors: No reported disclosures.

Serum Lactate Level as a Predictor of Outcome in Patients with Septic Shock

Background: Sepsis and Septic shock are a common presentation in the Emergency Department with high morbidity and mortality. Serum lactate level increases substantially in the patients with septic shock. The objectives of this study were to determine serum lactate levels at the time of presentation, find out the outcome and correlate lactate levels with the outcome in the patients with septic shock.&#x0D; Methods: It is a prospective cross-sectional study of patients presenting to the Emergency, who met the criteria for septic shock defined by Surviving Sepsis Guidelines 2012. Patients’ demographics, co morbidity, triage vitals, laboratory and radiological parameters were recorded. The primary outcome was mortality and secondary outcomes were duration of stay in hospital and complications, if any, developed during hospital stay.&#x0D; Results: Eighty-four cases were enrolled, with male to female ratio of 1:1. Mean age was46.40 19.59 years. The significant variables were: serum lactate (p&lt;0.001), pH level (p= 0.001), serum creatinine (p= 0.002) and INR level (p= 0.001). Serum lactate was the significant factor that correlated with mortality after applying multivariate regression analysis (OR= 2.75, CI= 0.890- 4.041,p= 0.001).&#x0D; Conclusion: Initial serum lactate level is independently associated with mortality of the patients presenting to ED with septic shock.

Timely completion of multiple life-saving interventions for traumatic haemorrhagic shock: a retrospective cohort study

BackgroundEarly control of haemorrhage and optimisation of physiology are guiding principles of resuscitation after injury. Improved outcomes have been previously associated with single, timely interventions. The aim of this study was to assess the association between multiple timely life-saving interventions (LSIs) and outcomes of traumatic haemorrhagic shock patients.MethodsA retrospective cohort study was undertaken of injured patients with haemorrhagic shock who presented to Alfered Emergency & Trauma Centre between July 01, 2010 and July 31, 2014. LSIs studied included chest decompression, control of external haemorrhage, pelvic binder application, transfusion of red cells and coagulation products and surgical control of bleeding through angio-embolisation or operative intervention. The primary exposure variable was timely initiation of ≥ 50% of the indicated interventions. The association between the primary exposure variable and outcome of death at hospital discharge was adjusted for potential confounders using multivariable logistic regression analysis. The association between total pre-hospital times and pre-hospital care times (time from ambulance at scene to trauma centre), in-hospital mortality and timely initiation of ≥ 50% of the indicated interventions were assessed.ResultsOf the 168 patients, 54 (32.1%) patients had ≥ 50% of indicated LSI completed within the specified time period. Timely delivery of LSI was independently associated with improved survival to hospital discharge (adjusted odds ratio (OR) for in-hospital death 0.17; 95% confidence interval (CI) 0.03–0.83; p = 0.028). This association was independent of patient age, pre-hospital care time, injury severity score, initial serum lactate levels and coagulopathy. Among patients with pre-hospital time of ≥ 2 h, 2 (3.6%) received timely LSIs. Pre-hospital care times of ≥ 2 h were associated with delayed LSIs and with in-hospital death (unadjusted OR 4.3; 95% CI 1.4–13.0).ConclusionsTimely completion of LSI when indicated was completed in a small proportion of patients and reflects previous research demonstrating delayed processes and errors even in advanced trauma systems. Timely delivery of a high proportion of LSIs was associated with improved outcomes among patients presenting with haemorrhagic shock after injury. Provision of LSIs in the pre-hospital phase of trauma care has the potential to improve outcomes.