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Background: With the development of regionalised trauma networks, interhospital transfer of trauma patients is an inevitable component of the trauma system. However, unnecessary transfer is a common phenomenon, and it is not without risk and cost. A better understanding of secondary overtriage would enable emergency physicians to make better decisions about trauma transfers and allow guidelines to be developed to support this decision making. This study aimed to describe the pattern of secondary overtriage in Hong Kong and identify its associated factors., Methods: This was a retrospective review of 10-years of prospectively collected multi-center data from two trauma registries in the New Territories of Hong Kong (2013-2022). The primary outcome is secondary overtriage, which was defined as early discharge alive within 48 h, Injury Severity Score (ISS) <15, and no surgical operation done. Patient characteristics, physiology, anatomy and investigation variables were compared against secondary overtriage using univariate and multivariable analyses., Results: During the study period, 3852 patients underwent interhospital transfer from a non-trauma center to a trauma center, and 809 (21 %) of the transfers were considered secondary overtriage. The secondary overtriage rate was higher in pediatric age groups at 34.8 % (97/279). Logistic regression analysis showed secondary overtriage to be associated with blunt trauma and an Abbreviated Injury Scale (AIS) score of <3 for head or neck, thorax, abdomen and extremities., Conclusion: Interhospital transfer is an essential component of the trauma system. However, over one-fifth of the transfers were considered unnecessary in Hong Kong, and this could be considered to be an inefficient use of resources as well as cause inconvenience to patients and their families. We have identified related factors including blunt trauma, AIS <3 scores for head or neck, thorax, abdomen and extremities, and opportunities to establish and improve on transfer protocols. Further research should be aimed to safely reduce interhospital transfers in the future to improve the efficiency of the Hong Kong trauma system., Competing Interests: Declaration of competing interest The authors declare that they have no competing interests., (Copyright © 2024 Elsevier Inc. All rights reserved.)

Background: Low back pain (LBP) is a leading cause of disability worldwide and has posed numerous health and socioeconomic challenges. This study compared whether nonsteroidal anti-inflammatory drugs (NSAIDs) in combination with tramadol, tizanidine or placebo would be the best treatment regime to improve the Roland Morris Disability Questionnaire (RMDQ) scores at 1 week., Methods: This was a multi-center, double-blind, randomized, and placebo-controlled trial including adult patients with acute LBP and sciatica in three emergency departments in Hong Kong. Patients were randomized to the receive tramadol 50 mg, tizanidine 2 mg, or placebo every 6 hours for 2 weeks in a 1:1:1 ratio. The RMDQ and other secondary outcomes were measured at baseline, Day 2, 7, 14, 21, and 28. Data were analyzed on an intention to treat basis. Crude and adjusted mean differences in the changes of RMDQ and NRS scores from baseline to Day 7 between tizanidine/tramadol and placebo were determined with 95% confidence intervals., Results: Two hundred and ninety-one patients were analyzed with the mean age of 47.4 years and 57.7% were male. The primary outcome of mean difference in RMDQs on Day 7 (compared with baseline) was non-significant for tizanidine compared with placebo (adjusted mean difference - 0.56, 95% CI -2.48 to 1.37) and tramadol compared with placebo (adjusted mean difference - 0.85, 95% CI -2.80 to 1.10). Only 23.7% were fully compliant to the treatment allocated. Complier Average Causal Effect analysis also showed no difference in the primary outcome for the tizanidine and tramadol versus placebo., Conclusion: Among patients with acute LBP and sciatica presenting to the ED, adding tramadol or tizanidine to diclofenac did not improve functional recovery., (© The Author(s) 2024. Published by Oxford University Press on behalf of Fellowship of Postgraduate Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Objective: Patients with dizziness commonly present to Emergency Departments (ED) and 6% of these patients will be diagnosed with acute stroke. The TriAGe+ score comprises of eight clinical parameters and stratifies patients into four risk groups. The Japanese authors reported that the tool performed well, so our aim was to validate this diagnostic tool in our ED in Hong Kong., Materials and Methods: A single-center retrospective observational study was conducted in the ED of our university hospital in Hong Kong. The primary outcome was the diagnosis of an acute cerebrovascular event. Receiver operator characteristic (ROC) analysis was performed to determine the best cut-off score. Secondary outcomes included univariable and multivariable analyses of stroke predictors., Results: 455 patients aged 18 years or above with dizziness or vertigo at ED triage were recruited between 19 July and 30 September 2021. The overall prevalence of stroke was 11.9%. The median TriAGe+ score was 7 (IQR = 4-9). The AUC was 0.9. At a cut-off >5, sensitivity was 96.4% (95%CI: 87.3-99.5) and the negative likelihood ratio was 0.09 (95%CI: 0.02-0.3). At a cut-off >10, specificity was 99.8% (95%CI: 98.6-100.0), and the positive likelihood ratio was 237.6 (95%CI: 33.1-1704). On multivariable analyses, atrial fibrillation, blood pressure, gender, dizziness (not vertigo) and no history of dizziness, vertigo or labyrinth/vestibular disease were found to be positively associated with stroke outcomes significantly., Conclusion: The TriAGe+ score is an efficient stroke prediction score for patients presenting to the ED with dizziness., Competing Interests: Declaration of Competing Interest We declare no conflicts of interest., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Purpose: Trauma remains a major cause of morbidity and disability worldwide; however, reliable data on the health status of an urban Asian population after injury are scarce. The aim was to evaluate 1-year post-trauma return to work (RTW) status in Hong Kong., Methods: This was a prospective, multi-center cohort study involving four regional trauma centers from 2017 to 2019 in Hong Kong. Participants included adult patients entered into the trauma registry who were working or seeking employment at the time of injury. The primary outcome was the RTW status up to 1 year. The Extended Glasgow Outcome Scale, 12-item Short Form (SF-12) survey and EQ5D were also obtained during 1-, 3-, 6-, 9-, and 12-month follow-ups. Multivariable Cox proportional hazards regression analysis was used for analysis., Results: Six hundred and seven of the 1115 (54%) recruited patients had RTW during the first year after injury. Lower physical requirements (p = 0.003, HR 1.51) in pre-injury job nature, higher educational levels (p < 0.001, HR 1.95), non-work-related injuries (p < 0.001, HR 1.85), shorter hospital length of stay (p = 0.007, HR 0.98), no requirement for surgery (p = 0.006, HR 1.34), and patients who could be discharged home (p = 0.006, HR 1.43) were associated with RTW within 12 months post-injury. In addition, 1-month outcomes including extended Glasgow Outcome Scale ≥ 6 (p = 0.001, HR 7.34), higher mean SF-12 physical component summary (p = 0.002, HR 1.02) and mental component summary (p < 0.001, HR 1.03), and higher EQ5D health index (p = 0.018, HR 2.14) were strongly associated with RTW., Conclusions: We have identified factors associated with failure to RTW during the first year following in Hong Kong including socioeconomic factors, injury factors and treatment-related factors and 1-month outcomes. Future studies should focus on the interventions that can impact on RTW outcomes., Trial Registration: ClinicalTrials.gov Identifier NCT03219424., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.)

Purpose: The purpose was to investigate long-term health impacts of trauma and the aim was to describe the functional outcome and health status up to 7 years after trauma., Methods: We conducted a prospective, multi-centre cohort study of adult trauma patients admitted to three regional trauma centres with moderate or major trauma (ISS ≥ 9) in Hong Kong (HK). Patients were followed up at regular time points (1, 6 months and 1, 2, 3, 4, 5, 6, and 7 years) by telephone using extended Glasgow Outcome Scale (GOSE) and the Short-Form 36 (SF36). Observed annual mortality rate was compared with the expected mortality rate estimated using the HK population cohort. Linear mixed model (LMM) analyses examined the changes in SF36 with subgroups of age ≥ 65 years, ISS > 15, and GOSE ≥ 5 over time., Results: At 7 years, 115 patients had died and 48% (138/285) of the survivors responded. The annual mortality rate (AMR) of the trauma cohort was consistently higher than the expected mortality rate from the general population. Forty-one percent of respondents had upper good recovery (GOSE = 8) at 7 years. Seven-year mean PCS and MCS were 45.06 and 52.06, respectively. LMM showed PCS improved over time in patients aged < 65 years and with baseline GOSE ≥ 5, and the MCS improved over time with baseline GOSE ≥ 5. Higher mortality rate, limited functional recovery and worse physical health status persisted up to 7 years post-injury., Conclusion: Long-term mortality and morbidity should be monitored for Asian trauma centre patients to understand the impact of trauma beyond hospital discharge., (© 2021. Springer-Verlag GmbH Germany, part of Springer Nature.)

Purpose: Hong Kong (HK) trauma registries have been using the Trauma and Injury Severity Score (TRISS) for audit and benchmarking since their introduction in 2000. We compare the mortality prediction model using TRISS and Revised Injury Severity Classification, version II (RISC II) for trauma centre patients in HK., Methods: This was a retrospective cohort study with all five trauma centres in HK. Adult trauma patients with Injury Severity Score (ISS) > 15 suffering from blunt injuries from January 2013 to December 2015 were included. TRISS models using the US and local coefficients were compared with the RISC II model. The primary outcome was 30-day mortality and the area under the receiver operating characteristic curve (AUC) for tested models., Results: 1840 patients were included, of whom 1236/1840 (67%) were male. Median age was 59 years and median ISS was 25. Low falls were the most common mechanism of injury. The 30-day mortality was 23%. RISC II yielded a superior AUC of 0.896, compared with the TRISS models (MTOS: 0.848; PATOS: 0.839; HK: 0.858). Prespecified subgroup analyses showed that all the models performed worse for age ≥ 70, ASA ≥ III, and low falls. RISC II had a higher AUC compared with the TRISS models in all subgroups, although not statistically significant., Conclusion: RISC II was superior to TRISS in predicting the 30-day mortality for Hong Kong adult blunt major trauma patients. RISC II may be useful when performing future audit or benchmarking exercises for trauma in Hong Kong., (© 2021. Springer-Verlag GmbH Germany, part of Springer Nature.)

Background: We aim to compare the prognostic value of Quick Sepsis-Related Organ Failure Assessment (qSOFA) and the previous Systemic Inflammatory Response Syndrome (SIRS) criteria, the National Early Warning Score (NEWS) and along with their combinations in the emergency department (ED)., Methods: This single-centre prospective study recruited a convenience sample of unselected ED patients triaged as category 2 (Emergency) and 3 (Urgent). Receiver Operating Characteristic analyses were performed to determine the Area Under the Curve (AUC), along with sensitivity, specificity, positive and negative predictive values, positive and negative likelihood ratios for the various scores., Results: Of 1253 patients recruited, overall 30-day mortality was 5.7%. The prognostic value for prediction of 30-day mortality, with AUCs for qSOFA ≥2, SIRS ≥2, NEWS ≥5, qSIRS (qSOFA + SIRS) ≥2 and NSIRS (NEWS + SIRS) ≥5 of 0.56 (95%CI 0.53-0.58), 0.61 (95%CI 0.58-0.64), 0.61 (95%CI 0.58-0.64), 0.64 (95%CI 0.62-0.67) and 0.61 (95%CI 0.58-0.63), respectively. Using pairwise comparisons of ROC curves, NEWS ≥5 and qSIRS ≥2 were better than qSOFA ≥2 at predicting 30-day mortality., Conclusions: Among unselected emergency and urgent ED patients, the prognostic value for NEWS and qSIRS were greater than qSOFA, Combinations of qSOFA and SIRS could improve the predictive value for 30-day mortality for ED patients. Key messages NEWS ≥5 and qSIRS ≥2 were better than qSOFA ≥2 at predicting 30-day mortality in ED patients. Combinations of qSOFA and SIRS could improve the predictive value for 30-day mortality for ED patients.

Background A straight line-based model is often used to calculate the distance between an out-of-hospital cardiac arrest (OHCA) and the location of an automated external defibrillator (AED). This model may be inaccurate as it overlooks any obstacles between the OHCA and AED. This study aimed to elucidate the effect of the straight line-based and walking route-based calculation on the average distance between an historical OHCA and the closest AED and the coverage rate of AEDs, ie, the proportion of historical OHCAs that were within 100 meters of an AED. It is hoped that the findings will help policy makers in deploying AEDs in optimal urban settings. Methods and Results This was an observational study conducted in Hong Kong. The average distance between an historical OHCA and its closest AED and the coverage rate of AEDs were calculated with both the straight line-based and walking route-based model. A total of 1637 AEDs and 5119 cases of OHCA were included for analysis. The average distances calculated by the straight line-based and walking route-based model were 230.8 and 545.3 meters, respectively. The coverage rate calculated by the straight line-based model was 30.04%, while that by the walking route-based model was 11.17%. Conclusions The straight line-based model may underestimate the average distances and overestimate the coverage rate in an urban setting. The walking route-based model may be more useful for studies of AED deployment in urban cities.

Background: With the aging population, the number of older patients with multiple injuries is increasing. The aim of this study was to understand the patterns and outcomes of older patients admitted to a major trauma centre in Hong Kong from 2006 to 2015, and investigate the performance of the trauma team activation (TTA) criteria for these elderly patients., Methods: This was a retrospective cohort study from a university hospital major trauma centre in Hong Kong from 2006 to 2015. Patients aged 55 or above who entered the trauma registry were included. Patients were divided into those aged 55-70, and above 70. To test the performance of the TTA criteria, we defined injured patients with severe outcomes as those having any of the following: death within 30 days; the need for surgery; or the need for intensive care unit (ICU) care., Results: 2218 patients were included over the 10 year period. The 30-day mortality was 7.5% for aged 55-70 and 17.7% for those aged above 70. The sensitivity of TTA criteria for identifying severe outcomes for those aged 55 or above was 35.6%, with 91.6% specificity. The under-triage rate was 59% for age 55-70, and 69.1% for those aged above 70., Conclusion: There is a need to consider alternative TTA criteria for our geriatric trauma population, and to more clearly define the process and standards of care in Hong Kong., (Copyright © 2018 Elsevier Inc. All rights reserved.)

Background: Glasgow Coma Scale (GCS) is one of the most commonly used patient assessment tools. This study aimed to determine whether an assessment aid can improve the GCS scoring accuracy by helicopter rescuers in Hong Kong., Methods: In this randomised controlled trial, Air Crewman Officers (ACMOs) of Government Flying Service in Hong Kong were randomised into two groups, with and without assessment aid. The group with the assessment aid was provided a printed copy of the GCS scoring table while watching the patient simulated videos. Ten videos with GCS scores ranging from 3 to 15 were used to test the performance of total GCS (tGCS) and motor component of GCS (mGCS) scoring., Results: 78% (n=25/32) of ACMOs participated in the study. By comparing the groups with and without an assessment aid, there was no significant difference in the accuracy of tGCS score (60% versus 60%; p=0.85) or mGCS score (80% versus 80%; p=0.75). Overall, mGCS has a higher accuracy than tGCS (p<0.001). The accuracy of mGCS was better than tGCS in mild and moderate brain injury scenarios., Conclusion: The use of an assessment aid did not improve GCS scoring by helicopter rescuers. The assessing of mGCS was more accurate than tGCS, further supporting the use of mGCS for prehospital conscious level assessment., (Copyright © 2018 College of Emergency Nursing Australasia. Published by Elsevier Ltd. All rights reserved.)