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Background: The neutrophil-to-lymphocyte ratio has been proposed as a marker of systemic inflammation in major trauma patients that is associated with in-hospital mortality. However, the initial neutrophil-to-lymphocyte ratio does not appear to be predictive of in-hospital mortality. The aim of this study is to determine the discriminative ability of the neutrophil-to-lymphocyte ratio profile over 48 h as a predictor of in-hospital mortality following major trauma. Methods: This was a case-control study involving all major trauma patients meeting the criteria for inclusion into the Alfred Health Trauma Registry who presented directly from the scene of injury over a 24-month period. Patients were then divided into two groups, cases being major trauma patients who died at hospital discharge and controls being patients who survived. We extracted data for Day 0, Day 1 and Day 2 neutrophil-to-lymphocyte ratio values for each patient. The primary outcome was mortality at hospital discharge. Results: Data were extracted for 1689 major trauma patients, of which 72% were male, the median age was 49 years (IQR 31–68) and most (90%) patients presented after a blunt mechanism of injury. There were 165 cases that were compared to 1524 controls. Patients who died were older (p < 0.001), and had higher injury severity scores (p < 0.001) and lower revised trauma scores (p < 0.001). Analysis of response profiles demonstrated a significant difference between the trajectories of the neutrophil-to-lymphocyte ratio over time (p < 0.001). Conclusions: The profile of neutrophil-to-lymphocyte ratio over 48 h after injury shows promise as a prognostic tool in trauma and warrants further investigation. [ABSTRACT FROM AUTHOR]

Introduction: The neutrophil-to-lymphocyte ratio (NLR) has been proposed as a marker of systemic inflammation in major trauma patients that is associated with in-hospital mortality. We aimed to determine the discriminative ability of initial NLR as a predictor of outcomes following major trauma. Methods: This was a registry-based cohort study involving all major trauma patients meeting criteria for inclusion into the Alfred Health Trauma Registry who presented directly from the scene of injury over a 24-month period (January 2018 to December 2019). The initial NLR was calculated for each patient and was compared against the Shock Index (SI), lactate and Revised Trauma Score (RTS). Outcomes observed were mortality at hospital discharge and intensive care unit (ICU) admission. We assessed the predictive capacity of each test using the receiver operating characteristic (ROC) curve and performed area under the ROC curve (AUROC) analysis to compare their performance. Results: Data were extracted for 1687 major trauma patients, of which 72% were male, the median age was 49 years (IQR 31–68) and most (90%) of patients presented after a blunt mechanism of injury. In-hospital mortality occurred in 165 (9.77%) patients, and 725 (42.92%) patients required ICU admission. The median NLR was 6.84 (IQR 3.89–11.52). Initial NLR performed poorly with an AUROC of 0.46 (95% confidence interval (CI): 0.40–0.52) for prediction of mortality and AUROC of 0.53 (95% CI: 0.50–0.56) for prediction of ICU admission. The AUROCs of initial NLR for both mortality at hospital discharge and ICU admission were significantly lower than SI, lactate and RTS. Conclusion: Initial NLR was not predictive of outcomes in major trauma. NLR at other time-points may provide better predictive capacity for outcomes. [ABSTRACT FROM AUTHOR]

Objective: Inconsistency in the structure and function of team-based major trauma reception and resuscitation is common. A standardised trauma team training programme was initiated to improve quality and consistency among trauma teams across a large, mature trauma system. The aim of this manuscript is to outline the programme and report on the initial perception of participants. Methods: The Alfred Trauma Team Reception and Resuscitation Training (TTRRT) programme commenced in March 2019. Participants included critical care and surgical craft group members commonly involved in trauma teams. Training was sitespecific and included rural, urban and tertiary referral centres. The programme consisted of prescribed pre-learning, didactic lectures, skill stations and simulated team-based scenarios. Participant perceptions of the programme were collected before and after the programme for analysis. Results: The TTRRT was delivered to 252 participants and 120 responses were received. Significant improvement in participant-reported confidence was identified across all key topic areas. There was also a significant increase in both confidence and clinical exposure to trauma team leadership roles after participation in the programme (from 53 [44.2%] to 74 [61.7%; P = 0.007]). This finding was independent of clinician experience. Conclusions: A team-based trauma reception and resuscitation education programme, introduced in a large, mature trauma system led to positive participant-reported outcomes in clinical confidence and real-life team leadership participation. Wider implementation combined with longitudinal data collection will facilitate correlation with patient and staff-centred outcomes. [ABSTRACT FROM AUTHOR]

Objective: The longer-term impact of injury is increasingly recognized, but the early phases of recovery are less well understood. The best tools to measure early recovery of mobility and physical function following traumatic injury are unclear. The purpose of this study was to assess the clinical utility, validity, reliability, and responsiveness of 4 mobility and physical function measures in patients following traumatic injury. Methods: In this cohort, measurement-focused study (n = 100), the modified Iowa Level of Assistance Score, Acute Care Index of Function, Activity Measure for Post-Acute Care "6 Clicks" short forms, and Functional Independence Measure were completed during first and last physical therapy sessions. Clinical utility and floor and ceiling effects were documented. Known-groups validity (early vs late in admission and by discharge destination), predictive validity (using 6-month postinjury outcomes data), and responsiveness were established. Interrater reliability was assessed in 30 patients with stable mobility and function. Results: Participants had a median age of 52 years (interquartile range = 33–68 years), and 68% were male. The modified Iowa Level of Assistance Score, Acute Care Index of Function, and "6 Clicks" short forms were quick to administer (an extra median time of 30 seconds–1 minute), but the Functional Independence Measure took much longer (extra median time of 5 minutes). At the last physical therapy session, ceiling effects were present for all measures except the Functional Independence Measure (18%–33% of participants). All had strong known-groups validity (early vs late in admission and by discharge destination). All were responsive (effect sizes >1.0) and had excellent interrater reliability (intraclass correlation coefficients = 0.79–0.94). Conclusion: All 4 measures were reliable, valid, and responsive; however, their clinical utility varied, and ceiling effects were common at physical therapy discharge. Impact: This study is an important step toward evidence-based measurement in acute trauma physical therapy care. It provides critical information to guide assessment of mobility and physical function in acute trauma physical therapy, which may facilitate benchmarking across different hospitals and trauma centers and further progress the science and practice of physical therapy following traumatic injury. [ABSTRACT FROM AUTHOR]

Objective: Procedural complication rates associated with tube thoracostomy for pleural decompression is estimated to be between 2 and 25%, with incorrect insertion site being a common problem. We hypothesised that the inferior-most hair follicle in the axillary region would provide an accurate biometric marker to identify the fourth to sixth intercostal space. Methods: A prospective cohort of patients requiring computed tomography scan of the chest was recruited from February 2015 to March 2016 at The Alfred Hospital. The inferior-most hair follicle on the patient's axillary region was tagged with a paperclip, and a radiologist reported this location with reference to the corresponding intercostal spaces. Results: Of the 254 enrolled patients, a total of 310 paperclip positions over intercostal spaces were analysed. There were 101 (32.5%) paperclips positioned in the fourth and fifth intercostal spaces with the remainder at the second or third intercostal spaces, and no paperclips placed at the sixth intercostal space or lower. Conclusions: This study demonstrated that the inferior-most hair follicle in the axilla corresponded to an area between the second and fifth intercostal spaces. Recognition of this surface anatomy has the potential to eliminate iatrogenic injuries to the diaphragm and sub-diaphragmatic organs, but should not be used as the sole marker due to potential risks from high placement of pleural drains. [ABSTRACT FROM AUTHOR]

Objective: The objective of this study was to report the procedural incidence and patient outcomes after the 2009 introduction of an institutional resuscitative thoracotomy (RT) programme. Emergency physicians, general surgeons and emergency nursing trauma team members were trained to perform RT on thoracic trauma patients with an unresponsive systolic blood pressure (SBP) <70 mmHg within 30 min of arrival, prior to cardiothoracic team back‐up. Methods: A retrospective cohort study was conducted on patients who underwent RT from 2009 to 2017. The primary outcome measures were the incidence of the procedure and patients' survival to hospital discharge. Variables associated with survival were assessed using univariable logistic regression analyses. Results: There were 12 399 major trauma patients, including 7657 with major thoracic trauma and 315 presenting with SBP <70 mmHg. There were 32 RTs performed (incidence of 0.4%; 95% confidence interval [CI] 0.3–0.6) among patients with major thoracic trauma and 10.2% (99% CI 7.3–13.4) among patients with major thoracic trauma and SBP <70 mmHg. There were eight (25%; 95% CI 13.2–42.1) survivors to hospital discharge and no late mortality (mean follow‐up 2.8 years). Survival was significantly associated with the procedure performed within 30 min of arrival (odds ratio 0.09; 95% CI 0.01–0.67) while mortality was associated with the procedure being performed in the setting of traumatic cardiac arrest (odds ratio 18.3; 95% CI 2.4–140.4). Conclusions: A formal training and credentialing programme was associated with a low incidence of the procedure, yet achieved a survival rate of 25%, which is comparable to other reported literature. [ABSTRACT FROM AUTHOR]

Early diagnosis of haemorrhagic shock ( HS) might be difficult because of compensatory mechanisms. Clinical scoring systems aimed at predicting transfusion needs might assist in early identification of patients with HS. The Shock Index ( SI) - defined as heart rate divided by systolic BP - has been proposed as a simple tool to identify patients with HS. This systematic review discusses the SI's utility post-trauma in predicting critical bleeding ( CB). We searched the databases MEDLINE, Embase, CINAHL, Cochrane Library, Scopus and PubMed from their commencement to 1 September 2013. Studies that described an association with SI and CB, defined as at least 4 units of packed red blood cells ( pRBC) or whole blood within 24 h, were included. Of the 351 located articles identified by the initial search strategy, five met inclusion criteria. One study pertained to the pre-hospital setting, one to the military, two to the in-hospital setting, and one included analysis of both pre-hospital and in-hospital values. The majority of papers assessed predictive properties of the SI in ≥10 units pRBC in the first 24 h. The most frequently suggested optimal SI cut-off was ≥0.9. An association between higher SI and bleeding was demonstrated in all studies. The SI is a readily available tool and may be useful in predicting CB on arrival to hospital. The evaluation of improved utility of the SI by performing and recording at earlier time-points, including the pre-hospital phase, is indicated. [ABSTRACT FROM AUTHOR]