Major trauma in working-age adults in New Zealand

AIM

To describe the demographic and injury profile of major trauma among 20-65-year-old New Zealanders.

METHODS

A retrospective analysis of routinely collected data from the New Zealand Major Trauma Registry for the period 1 July 2017 to 30 June 2020 was conducted. Sex, age and ethnicity-based rates were then calculated using census-based population estimates to compare the rates of injury across different demographic groups.

RESULTS

Of the 4,186 major trauma incidents among 20-65-year-olds in New Zealand during the 3-year period reviewed, 235 died (5.6%). Males accounted for 77% of those injured. Māori (New Zealand's Indigenous population) had significantly higher rates of major trauma (79.2 per 100,000; 95% confidence interval [CI] 74.4-84.3) compared to non-Māori (44.4 per 100,000; 95% CI 42.9-46.0). The most common cause of injury was transport-related incidents (63%; n=2,632/4,186), followed by falls (19%; n=788/4,186).

CONCLUSIONS

Demographic characteristics have a significant relationship with major trauma injuries among 20-65-year-old New Zealanders. Continued injury prevention efforts focussing on males, Māori and transport incidents are required. Interventions that improve the safety of roads, such as lane separators, speed limits and raised intersections, should be implemented in high-crash-risk areas to reduce risk.

Narrative review of traumatic pneumorrhachis

Pneumorrhachis (PR) is defined as presence of free air in the spinal canal. Traumatic PR is very rare, and its exact incidence and pathogenesis is unknown. A comprehensive literature search was performed using the PubMed, Cochrane Library, Google Scholar and Scopus databases to identify articles relevant to traumatic PR published till January 2023. A total of 34 resources were selected for inclusion in this narrative review. Traumatic PR can be classified anatomically into epidural and intradural types. In the epidural type, air is present peripherally in the spinal canal and the patients are usually asymptomatic. In contrast, in intradural PR, air is seen centrally in the spinal canal and patients present with neurological symptoms, and it is a marker of severe trauma. It is frequently associated with traumatic pneumocephalus, skull fractures or thoracic spine fracture. Computed tomography (CT) is considered to be the diagnostic modality of choice. Epidural PR is self-limited and patients are generally managed conservatively. Patients with neurological symptoms or persistent air in spinal canal require further evaluation for a potential source of air leak, with a need for surgical intervention. Differentiation between epidural and intradural PR is important, because the latter is an indication of severe underlying injury. CT imaging of the entire spine must be performed to look for extension of air, as well as to identify concomitant skull, torso or spinal injuries Most patients are asymptomatic and are managed conservatively, but a few may develop neurological symptoms that need further evaluation and management.

Cesena guidelines: WSES consensus statement on laparoscopic-first approach to general surgery emergencies and abdominal trauma

BACKGROUND

Laparoscopy is widely adopted across nearly all surgical subspecialties in the elective setting. Initially finding indication in minor abdominal emergencies, it has gradually become the standard approach in the majority of elective general surgery procedures. Despite many technological advances and increasing acceptance, the laparoscopic approach remains underutilized in emergency general surgery and in abdominal trauma. Emergency laparotomy continues to carry a high morbidity and mortality. In recent years, there has been a growing interest from emergency and trauma surgeons in adopting minimally invasive surgery approaches in the acute surgical setting. The present position paper, supported by the World Society of Emergency Surgery (WSES), aims to provide a review of the literature to reach a consensus on the indications and benefits of a laparoscopic-first approach in patients requiring emergency abdominal surgery for general surgery emergencies or abdominal trauma.

METHODS

This position paper was developed according to the WSES methodology. A steering committee performed the literature review and drafted the position paper. An international panel of 54 experts then critically revised the manuscript and discussed it in detail, to develop a consensus on a position statement.

RESULTS

A total of 323 studies (systematic review and meta-analysis, randomized clinical trial, retrospective comparative cohort studies, case series) have been selected from an initial pool of 7409 studies. Evidence demonstrates several benefits of the laparoscopic approach in stable patients undergoing emergency abdominal surgery for general surgical emergencies or abdominal trauma. The selection of a stable patient seems to be of paramount importance for a safe adoption of a laparoscopic approach. In hemodynamically stable patients, the laparoscopic approach was found to be safe, feasible and effective as a therapeutic tool or helpful to identify further management steps and needs, resulting in improved outcomes, regardless of conversion. Appropriate patient selection, surgeon experience and rigorous minimally invasive surgical training, remain crucial factors to increase the adoption of laparoscopy in emergency general surgery and abdominal trauma.

CONCLUSIONS

The WSES expert panel suggests laparoscopy as the first approach for stable patients undergoing emergency abdominal surgery for general surgery emergencies and abdominal trauma.

Cohort profile: The Trauma Outcomes Project, a prospective study of New Zealanders experiencing major trauma

PURPOSE

Patient-reported outcome measures (PROMs) are useful for trauma registries interested in monitoring patient outcomes and trauma care quality. PROMs had not previously been collected by the New Zealand Trauma Registry (NZTR). More than 2500 New Zealanders are admitted to hospital for major trauma annually. The Trauma Outcomes Project (TOP) collected PROMs postinjury from three of New Zealand's (NZ's) major trauma regions. This cohort profile paper aims to provide a thorough description of preinjury and 6 month postinjury characteristics of the TOP cohort, including specifically for Māori (Indigenous population in Aotearoa me Te Waipounamu/NZ).

PARTICIPANTS

Between July 2019 and June 2020, 2533 NZ trauma patients were admitted to one of 22 hospitals nationwide for major trauma and included on the NZTR. TOP invited trauma patients (aged ≥16 years) to be interviewed from three regions; one region (Midlands) declined to participate. Interviews included questions about health-related quality of life, disability, injury recovery, healthcare access and household income adequacy.

FINDINGS TO DATE

TOP recruited 870 participants, including 119 Māori. At 6 months postinjury, most (85%) reported that the injury still affected them, 88% reported problems with≥1 of five EQ-5D-5L dimensions (eg, 75% reported problems with pain or discomfort, 71% reported problems with usual activities and 52% reported problems with mobility). Considerable disability (World Health Organization Disability Assessment Schedule, WHODAS II, score ≥10) was reported by 45% of participants. The prevalence of disability among Māori participants was 53%; for non-Māori it was 44%. Over a quarter of participants (28%) reported trouble accessing healthcare services for their injury. Participation in paid work decreased from 63% preinjury to 45% 6 months postinjury.

FUTURE PLANS

The 12 and 24 month postinjury data collection has recently been completed; analyses of 12 month outcomes are underway. There is potential for longer-term follow-up interviews with the existing cohort in future. TOP findings are intended to inform the National Trauma Network's quality improvement processes. TOP will identify key aspects that aid in improving postinjury outcomes for people experiencing serious injury, including importantly for Māori.

Enhanced perioperative care in emergency general surgery: the WSES position paper

Enhanced perioperative care protocols become the standard of care in elective surgery with a significant improvement in patients' outcome. The key element of the enhanced perioperative care protocol is the multimodal and interdisciplinary approach targeted to the patient, focused on a holistic approach to reduce surgical stress and improve perioperative recovery. Enhanced perioperative care in emergency general surgery is still a debated topic with little evidence available. The present position paper illustrates the existing evidence about perioperative care in emergency surgery patients with a focus on each perioperative intervention in the preoperative, intraoperative and postoperative phase. For each item was proposed and approved a statement by the WSES collaborative group.

The New Zealand National Trauma Registry: an essential tool for trauma quality improvement

PURPOSE

Trauma registries are essential tools for trauma systems and underpin any quality improvement activities. This paper describes the history, function, challenges, and future goals of the New Zealand National Trauma Registry (NZTR).

METHODS

Using the available publications and knowledge of the authors, the development, governance, oversight, and usage of the registry is outlined.

RESULTS

The New Zealand Trauma Network has run a national trauma registry since 2015 and this now contains over fifteen thousand major trauma patient records. Annual reports and a range of research outputs have been published. Key quality improvement initiatives have been undertaken and are described. Vulnerabilities include lack of longterm funding and a small workforce.

CONCLUSIONS

The NZTR has proven to be a critical component of trauma quality improvement in New Zealand. A user-friendly portal and a simple minimum dataset have been keys to successes but maintenance of an effective structure in a constrained healthcare system is a challenge.

ECLAPTE: Effective Closure of LAParoTomy in Emergency-2023 World Society of Emergency Surgery guidelines for the closure of laparotomy in emergency settings

Laparotomy incisions provide easy and rapid access to the peritoneal cavity in case of emergency surgery. Incisional hernia (IH) is a late manifestation of the failure of abdominal wall closure and represents frequent complication of any abdominal incision: IHs can cause pain and discomfort to the patients but also clinical serious sequelae like bowel obstruction, incarceration, strangulation, and necessity of reoperation. Previous guidelines and indications in the literature consider elective settings and evidence about laparotomy closure in emergency settings is lacking. This paper aims to present the World Society of Emergency Surgery (WSES) project called ECLAPTE (Effective Closure of LAParoTomy in Emergency): the final manuscript includes guidelines on the closure of emergency laparotomy.

Prevalence of psychoactive drugs in injured patients presenting to an emergency department

OBJECTIVE

The aim of the present study was to obtain an unbiased understanding of the prevalence of psychoactive drugs in trauma patients presenting to a large ED.

METHODS

Consecutive adult patients presenting to the ED with an injury resulting in a trauma call had an anonymised, additional blood test taken for detection of over 2000 drugs. Laboratory testing was to judicial standards. Drugs given by ambulance pre-hospital were detected but excluded from the analysis.

RESULTS

Over 6 months 276 (74.7%) of 371 patients were tested. Of the 276 patients tested, 158 (57.2%) had one or more psychoactive drug present. Recreational drugs were detected in 101 (36.6%) patients and medicinal drugs in 88 (31.8%) patients, with a combination of both detected in 31 (11.2%) patients. The most common drugs detected were cannabis (22.1%), antidepressants (18.4%), alcohol (15.5%), opioids (10.1%), benzodiazepine/z-drugs (9.4%) and methamphetamine (7.2%). The prevalence of psychoactive drugs differed by age group, sex and cause of injury.

CONCLUSIONS

The prevalence of psychoactive drugs in injury presentations to an ED is high, and provides an opportunity to reduce harm. The present study demonstrates the feasibility of an approach which limits bias and obtains results that accurately reflect the drug prevalence in injured cohorts. Systematic testing of injured patients is an important contribution to the epidemiology of injury.

A rare case of penetrating intra-abdominal trauma by a fishing speargun

Spearfishing is a popular sport in New Zealand. While there have been a few reported self-inflicted speargun injuries causing fatal intracranial damage, accidental speargun injuries while fishing are less common. Intra-abdominal speargun injuries are even less common. Its occurrence in a 30-year-old male patient reported here highlights the potential risk of life-threatening injuries. A 30-year-old male sustained an accidental speargun injury, with the spear passing through central small bowel loops and its pointed tip penetrating the left iliac wing. The patient underwent laparotomy, and the spear was removed in an antegrade fashion with primary closure of small bowel enterotomies and repair of the mesenteric defects. He had a re-look laparotomy 48 hours later with resection and anastomosis of two primary small bowel repairs and was eventually discharged after 12 days. Information obtained by radiological evaluation using computed tomography (CT) scan and angiography regarding the spear trajectory, injured organs, vasculature and spear tip mechanism is important to decide the best surgical approach. The spear should be removed in an antegrade fashion, because pulling the spear in the retrograde direction can cause further tissue and/or vascular injury. Currently, there is no legislation regarding the use of spearguns and users do not require a license, despite the potential for severe penetrating trauma similar to that caused by firearms. Spearguns can produce life-threatening injuries and the removal of the spear depends on the location of the tip in relation to adjacent structures and whether the flapper is open. It often requires a multidisciplinary team approach. Safety guidelines need to be published and widely available, and the potential risks of speargun injuries should be included in fishing rules. Introducing license requirement for possession and handling of this firearm-like weapon also needs to be considered.

Acute mesenteric ischemia: updated guidelines of the World Society of Emergency Surgery

Acute mesenteric ischemia (AMI) is a group of diseases characterized by an interruption of the blood supply to varying portions of the intestine, leading to ischemia and secondary inflammatory changes. If untreated, this process may progress to life-threatening intestinal necrosis. The incidence is low, estimated at 0.09-0.2% of all acute surgical admissions, but increases with age. Although the entity is an uncommon cause of abdominal pain, diligence is required because if untreated, mortality remains in the range of 50%. Early diagnosis and timely surgical intervention are the cornerstones of modern treatment to reduce the high mortality associated with this entity. The advent of endovascular approaches in parallel with modern imaging techniques is evolving and provides new treatment options. Lastly, a focused multidisciplinary approach based on early diagnosis and individualized treatment is essential. Thus, we believe that updated guidelines from World Society of Emergency Surgery are warranted, in order to provide the most recent and practical recommendations for diagnosis and treatment of AMI.

Follow-up strategies for patients with splenic trauma managed non-operatively: the 2022 World Society of Emergency Surgery consensus document

Background

In 2017, the World Society of Emergency Surgery published its guidelines for the management of adult and pediatric patients with splenic trauma. Several issues regarding the follow-up of patients with splenic injuries treated with NOM remained unsolved.

Methods

Using a modified Delphi method, we sought to explore ongoing areas of controversy in the NOM of splenic trauma and reach a consensus among a group of 48 international experts from five continents (Africa, Europe, Asia, Oceania, America) concerning optimal follow-up strategies in patients with splenic injuries treated with NOM.

Results

Consensus was reached on eleven clinical research questions and 28 recommendations with an agreement rate ≥ 80%. Mobilization after 24 h in low-grade splenic trauma patients (WSES Class I, AAST Grades I–II) was suggested, while in patients with high-grade splenic injuries (WSES Classes II–III, AAST Grades III–V), if no other contraindications to early mobilization exist, safe mobilization of the patient when three successive hemoglobins 8 h apart after the first are within 10% of each other was considered safe according to the panel. The panel suggests adult patients to be admitted to hospital for 1 day (for low-grade splenic injuries—WSES Class I, AAST Grades I–II) to 3 days (for high-grade splenic injuries—WSES Classes II–III, AAST Grades III–V), with those with high-grade injuries requiring admission to a monitored setting. In the absence of specific complications, the panel suggests DVT and VTE prophylaxis with LMWH to be started within 48–72 h from hospital admission. The panel suggests splenic artery embolization (SAE) as the first-line intervention in patients with hemodynamic stability and arterial blush on CT scan, irrespective of injury grade. Regarding patients with WSES Class II blunt splenic injuries (AAST Grade III) without contrast extravasation, a low threshold for SAE has been suggested in the presence of risk factors for NOM failure. The panel also suggested angiography and eventual SAE in all hemodynamically stable adult patients with WSES Class III injuries (AAST Grades IV–V), even in the absence of CT blush, especially when concomitant surgery that requires change of position is needed. Follow-up imaging with contrast-enhanced ultrasound/CT scan in 48–72 h post-admission of trauma in splenic injuries WSES Class II (AAST Grade III) or higher treated with NOM was considered the best strategy for timely detection of vascular complications.

Conclusion

This consensus document could help guide future prospective studies aiming at validating the suggested strategies through the implementation of prospective trauma databases and the subsequent production of internationally endorsed guidelines on the issue.

Disability-Adjusted Life Years and cost of health loss of hospitalised major trauma patients in New Zealand

AIMS

The aims of this study were to quantify the burden, and the cost of health loss, following hospitalisation for major trauma in New Zealand.

METHOD

Hospitalised major trauma patients injured between July 2017 and June 2020 were extracted from the New Zealand Trauma Registry. Case-mix of major trauma in each year was summarised using descriptive statistics. Disability-adjusted life years (DALYs) were calculated for the cohort. A cost per DALY was applied to estimate the cost of health loss.

RESULTS

A total of 6,629 major trauma cases were recorded, rising from 2,072 in 2017-2018 to 2,191 in 2019-2020. The patient case-mix remained relatively consistent over the timeframe while the in-hospital mortality rate declined from 9.2% to 7.3%. Hospitalised major trauma patients accrued 22,718 DALYs (average 7,573 DALYs per year) at an estimated health loss cost of $1.02 billion ($341 million per year). The cost of health loss per case declined from $162,747 in 2017-2018 to $143,577 in 2019-2020.

CONCLUSION

The burden of major trauma is high. As injury is a preventable condition, the findings highlight the need for dedicated investment in both primary prevention and trauma care in New Zealand to reduce these avoidable costs.

Activating Code Crimson in the emergency department: Expediting definitive care for trauma patients with severe haemorrhage in Singapore

"Trauma activation" is a process adopted across all emergency departments of public healthcare institutions in Singapore, with the aim of rapidly mobilising personnel and resources to care for patients with major trauma. A subset of trauma patients with exsanguinating haemorrhage has a particularly high mortality rate, and they require an additional response beyond the usual trauma activation for definitive haemorrhage control. To address this need, Code Crimson has been developed at Auckland City Hospital in New Zealand and other jurisdictions as a step-up response. This is aimed at early activation of the massive transfusion protocol for haemostatic resuscitation, involvement of additional multidisciplinary teams for rapid decision-making, and expediting definitive haemorrhage control. At present, there is no protocol for activation of Code Crimson in Singapore. Code Crimson may be effective in Singapore, as it has been in other jurisdictions, to reduce morbidity and mortality in major trauma patients with severe haemorrhage.

Lockdown Level 4 V2.0: different trauma patterns in Auckland in 2021?

AIMS

Coronavirus disease 2019 (COVID-19) resulted in the implementation of public health restrictions to reduce transmission. These restrictions have reduced trauma-related admissions to hospitals. Auckland, New Zealand, had two periods of Level 4 lockdowns, in 2020 and 2021. In the 2021 lockdown, Aucklanders were generally less compliant with the restrictions. Therefore, we hypothesised that trauma-related activity would be greater in the 2021 lockdown compared to 2020.

METHODS

A retrospective descriptive study of trauma admissions to Auckland City Hospital (ACH) during 2020 (26 March to 27 April 2020-33 days) and 2021 (18 August to 21 September 2021-35 days) lockdown periods was performed.

RESULTS

Trauma admissions and trauma call activations increased from 97 to 105 (8.2%) and from 35 to 46, respectively, in the 2021 lockdown compared to 2020. The numbers of males and road related injuries requiring admission were increased from 49 to 66 (p = 0.077) and from 21 to 28 (p = 0.439), respectively, in 2021 compared to 2020. Major trauma admissions increased from 13 to 23 in the 2021 lockdown compared to 2020.

CONCLUSIONS

Trauma-related presentations to hospital were higher in the 2021 Auckland lockdown compared to 2020. Lockdown fatigue and reduced compliance in 2021 may have contributed to this finding, suggesting that future lockdowns may be less effective.

Incidence, Mechanisms of Injury and Mortality of Severe Traumatic Brain Injury: An Observational Population-Based Cohort Study from New Zealand and Norway

BACKGROUND

Comparing trauma registry data from different countries can help to identify possible differences in epidemiology, which may help to improve the care of trauma patients.

METHODS

This study directly compares the incidence, mechanisms of injuries and mortality of severe TBI based on population-based data from the two national trauma registries from New Zealand and Norway. All patients prospectively registered with severe TBI in either of the national registries for the 4-year study period were included. Patient and injury variables were described and age-adjusted incidence and mortality rates were calculated.

RESULTS

A total of 1378 trauma patients were identified of whom 751 (54.5%) from New Zealand and 627 (45.5%) from Norway. The patient cohort from New Zealand was significantly younger (median 32 versus 53 years; p < 0.001) and more patients from New Zealand were injured in road traffic crashes (37% versus 13%; p < 0.001). The age-adjusted incidence rate of severe TBI was 3.8 per 100,000 in New Zealand and 2.9 per 100,000 in Norway. The age-adjusted mortality rates were 1.5 per 100,000 in New Zealand and 1.2 per 100,000 in Norway. The fatality rates were 38.5% in New Zealand and 34.2% in Norway (p = 0.112).

CONCLUSIONS

Road traffic crashes in younger patients were more common in New Zealand whereas falls in elderly patients were the main cause for severe TBI in Norway. The age-adjusted incidence and mortality rates of severe TBI among trauma patients are similar in New Zealand and Norway. The fatality rates of severe TBI are still considerable with more than one third of patients dying.

Access to advanced-level hospital care: differences in prehospital times calculated using incident locations compared with patients' usual residence

Studies estimate that 84% of the USA and New Zealand's (NZ) resident populations have timely access (within 60 min) to advanced-level hospital care. Our aim was to assess whether usual residence (ie, home address) is a suitable proxy for location of injury incidence. In this observational study, injury fatalities registered in NZ's Mortality Collection during 2008-2012 were linked to Coronial files. Estimated access times via emergency medical services were calculated using locations of incident and home. Using incident locations, 73% (n=4445/6104) had timely access to care compared with 77% when using home location. Access calculations using patients' home locations overestimated timely access, especially for those injured in industrial/construction areas (18%; 95% CI 6% to 29%) and from drowning (14%; 95% CI 7% to 22%). When considering timely access to definitive care, using the location of the injury as the origin provides important information for health system planning.

Review of the requirements for effective mass casualty preparedness for trauma systems. A disaster waiting to happen?

Mass casualty incidents (MCIs) are diverse, unpredictable, and increasing in frequency, but preparation is possible and necessary. The nature of MCIs requires a trauma response but also requires effective and tested disaster preparedness planning. From an international perspective, the aims of this narrative review are to describe the key components necessary for optimisation of trauma system preparedness for MCIs, whether trauma systems and centres meet these components and areas for improvement of trauma system response. Many of the principles necessary for response to MCIs are embedded in trauma system design and trauma centre function. These include robust communication networks, established triage systems, and capacity to secure centres from threats to safety and quality of care. However, evidence from the current literature indicates the need to strengthen trauma system preparedness for MCIs through greater trauma leader representation at all levels of disaster preparedness planning, enhanced training of staff and simulated disaster training, expanded surge capacity planning, improved staff management and support during the MCI and in the post-disaster recovery phase, clear provision for the treatment of paediatric patients in disaster plans, and diversified and pre-agreed systems for essential supplies and services continuity. Mass casualty preparedness is a complex, iterative process that requires an integrated, multidisciplinary, and tiered approach. Through effective preparedness planning, trauma systems should be well-placed to deliver an optimal response when faced with MCIs.

Access to specialist hospital care and injury survivability: identifying opportunities through an observational study of prehospital trauma fatalities

BACKGROUND

Of the five million injury deaths that occur globally each year, an estimated 70% occur before the injured person reaches hospital. Although reducing the time from injury to definitive care has been shown to achieve better outcomes for patients, the relationship between injury incident location and access to specialist care has been largely unexplored.

OBJECTIVE

To determine the number and distribution of prehospital (on-scene/en route) trauma deaths without timely access to a hospital with surgical and intensive care capabilities, overall and by estimated injury survivability.

METHODS

New Zealand's Mortality Collection and Hospital Discharge dataset were used to select prehospital injury deaths in 2009-2012. These records were linked to files held by Australasia's National Coronial Information Service (NCIS) to estimate, for the trauma subset, injury survivability. Using geographical locations of injury for the prehospital trauma fatalities, time from Emergency Medical System call-out to arrival at the closest specialist hospital was estimated.

RESULTS

Of 1,752 prehospital trauma fatalities, 14.7% (95%CI 13.0, 16.4) had potentially survivable injuries that occurred in locations without timely access (prehospital phase >60 minutes). More than half (132 of 257) of the potentially survivable prehospital trauma fatalities without timely access died as a result of a motor vehicle traffic crash. Only 10% (95%CI 5.7, 16.0) of prehospital trauma fatalities from falls were estimated to be potentially survivable and without timely access compared to 24.6% (95%CI 18.5, 31.5) of prehospital firearm fatalities. Through using geospatial techniques, "hot spot" locations of potentially survivable injuries without timely access to specialist major trauma hospitals were apparent.

CONCLUSION

Approximately 15% of prehospital trauma fatalities in New Zealand that are potentially survivable occur in locations without timely access to advanced level hospital care. Continued emphasis is required on both improving timely access to advanced trauma care, and on primary prevention of serious injuries. Decisions regarding trauma service delivery, a modifiable system-level factor, should consider the geographic distribution of locations of these injury events alongside the resident population distribution.

Nail gun injuries: not just an occupational hazard

INTRODUCTION

Nail guns are commonly used in the construction industry. They represent an occupational hazard, and in the context of mental illness can pose a threat to life.

AIM

To determine the number of patients admitted to Auckland City Hospital (ACH) with a nail gun injury, and to review the current New Zealand legislation surrounding nail guns.

METHODS

A 25-year retrospective review of patients admitted to ACH with a nail gun injury was performed by searching the ACH Trauma Registry. New Zealand legislation was reviewed.

RESULTS

Between 1994 and 2019, 45 patients were admitted to ACH with a nail gun injury. Two subgroups were identified: 31% with an intentional injury; 69% with an unintentional injury. All patients were male. The mean age was 36.3. Patients with an intentional injury had a higher mortality rate (21.4% vs 9.5%), Injury Severity Scores (24.2 vs 3.4) and ICU admission rate (50% vs 3%) and required more intensive post-injury care when compared to unintentional injuries. There is currently no legislation in New Zealand specifically governing the use of nail guns. Only powder-actuated nail guns require certification.

CONCLUSION

The continued occurrence of unintentional nail gun injuries and the high lethality of intentional injuries represent two distinct areas of concern. The Government should publish guidance aimed at improving safety and reducing the rate of intentional injury.

Trauma quality indicators: internationally approved core factors for trauma management quality evaluation

INTRODUCTION

Quality in medical care must be measured in order to be improved. Trauma management is part of health care, and by definition, it must be checked constantly. The only way to measure quality and outcomes is to systematically accrue data and analyze them.

MATERIAL AND METHODS

A systematic revision of the literature about quality indicators in trauma associated to an international consensus conference RESULTS: An internationally approved base core set of 82 trauma quality indicators was obtained: Indicators were divided into 6 fields: prevention, structure, process, outcome, post-traumatic management, and society integrational effects.

CONCLUSION

Present trauma quality indicator core set represents the result of an international effort aiming to provide a useful tool in quality evaluation and improvement. Further improvement may only be possible through international trauma registry development. This will allow for huge international data accrual permitting to evaluate results and compare outcomes.

Evaluating the impact of prehospital care on mortality following major trauma in New Zealand: a retrospective cohort study

BACKGROUND

Injury is a leading cause of death and health loss in New Zealand and internationally. The potentially fatal or severe consequences of many injuries can be reduced through an optimally structured prehospital trauma care system that can provide timely and appropriate care.

OBJECTIVE

To investigate the relationship between emergency medical services (EMS) care and survival to hospital for major trauma cases in New Zealand.

METHODS

This project is a retrospective cohort study of New Zealand major trauma cases attended by EMS providers over a 2-year period. Outcomes include survival to hospital and survival in hospital for at least 24 hours. The project has three phases: (1) identification of the cohort and assembling a bespoke longitudinal dataset linking EMS, New Zealand Major Trauma Registry and Coronial data; (2) describing the pathways and processes of care to inform an investigation of the relationships between types of EMS care and survival using propensity score modelling to adjust for case-mix differences; (3) assessment of the implications for future practice, policy and research.

DISCUSSION

The study findings will help identify opportunities to optimise the delivery of EMS care in New Zealand by informing the development or revision of existing major trauma EMS policies and guidelines, and to provide a baseline for monitoring the impact of future initiatives. Establishing an evidence-base will support a whole-of-system appraisal that could include broader complex variables relating to healthcare services throughout the continuum of trauma care.

Potential survivability of prehospital injury deaths in New Zealand: a cross-sectional study

INTRODUCTION

Acknowledging a notable gap in available evidence, this study aimed to assess the survivability of prehospital injury deaths in New Zealand.

METHODS

A cross-sectional review of prehospital injury death postmortems (PM) undertaken during 2009-2012. Deaths without physical injuries (eg, drownings, suffocations, poisonings), where there was an incomplete body, or insufficient information in the PM, were excluded. Documented injuries were scored using the AIS and an ISS derived. Cases were classified as survivable (ISS <25), potentially survivable (ISS 25-49) and non-survivable (ISS >49).

RESULTS

Of the 1796 cases able to be ISS scored, 11% (n=193) had injuries classified as survivable, 28% (n=501) potentially survivable and 61% (n=1102) non-survivable. There were significant differences in survivability by age (p=0.017) and intent (p<0.0001). No difference in survivability was observed by sex, ethnicity, day of week, seasonality or distance to advanced-level hospital care. 'Non-survivable' injuries occurred more commonly among those with multiple injuries, transport-related injuries and aged 15-29 year. The majority of 'survivable' cases were deceased when found. Among those alive when found, around half had received either emergency medical services (EMS) or bystander care. One in five survivable cases were classified as having delays in receiving care.

DISCUSSION

In New Zealand, the majority of injured people who die before reaching hospital do so from non-survivable injuries. More than one third have either survivable or potentially survivable injuries, suggesting an increased need for appropriate bystander first aid, timeliness of EMS care and access to advanced-level hospital care.

Survey of major trauma centre preparedness for mass casualty incidents in Australia, Canada, England and New Zealand

BACKGROUND

Mass casualty incidents (MCIs) are increasing. Trauma centres play a key role in MCIs due to their readiness and expansive multidisciplinary expertise for injury management. Previous studies have shown deficiencies in trauma centre disaster preparedness. The aim of this study was to describe the current disaster preparedness of Major Trauma Centres (MTCs) in Australia, Canada, England and New Zealand.

METHODS

A cross-sectional survey of all (n = 82) MTCs was undertaken. The anonymous survey collected data about disaster preparedness in nine key areas. Respondents were encouraged to consult appropriately at their centre to provide an accurate representation of their centre's preparedness.

FINDINGS

Responses were received from 69 (84%) centres; 61 completed all questions. 91% had a disaster preparedness committee and 80% had an all-hazards emergency plan. 79% had held an MCI drill in the past 2 years. 54% reported a system in place to calculate maximum capacity, but testing of surge capacity was uncommon. 55% reported the presence of stored resources for an MCI and 58% had a database of staff trained in Emergency Management. 74% had a training and education plan available for staff involved in an MCI and a plan for professional debriefing of staff post-MCI, while 62% had a post-disaster employee assistance programme. Most centres had appropriate back-up communication, safety and security plans.

INTERPRETATION

The disaster preparedness of MTCs was high for communication, safety and security but there was clear need for improvement in other areas including surge capacity, human resources and post-disaster recovery.

Liver trauma: WSES 2020 guidelines

Liver injuries represent one of the most frequent life-threatening injuries in trauma patients. In determining the optimal management strategy, the anatomic injury, the hemodynamic status, and the associated injuries should be taken into consideration. Liver trauma approach may require non-operative or operative management with the intent to restore the homeostasis and the normal physiology. The management of liver trauma should be multidisciplinary including trauma surgeons, interventional radiologists, and emergency and ICU physicians. The aim of this paper is to present the World Society of Emergency Surgery (WSES) liver trauma management guidelines.

Towards a safer culture: implementing multidisciplinary simulation-based team training in New Zealand operating theatres - a framework analysis

AIM

NetworkZ is a simulation-based multidisciplinary team-training programme designed to enhance patient safety by improving communication and teamwork in operating theatres (OTs). In partnership with the Accident Compensation Corporation, its implementation across New Zealand (NZ) began in 2017. Our aim was to explore the experiences of staff - including the challenges they faced - in implementing NetworkZ in NZ hospitals, so that we could improve the processes necessary for subsequent implementation.

METHOD

We interviewed staff from five hospitals involved in the initial implementation of NetworkZ, using the Organising for Quality model as the framework for analysis. This model describes embedding successful quality improvement as a process of overcoming six universal challenges: structure, infrastructure, politics, culture, motivation and learning.

RESULTS

Thirty-one people participated. Structural support within the hospital was considered essential to maintain staff enthusiasm, momentum and to embed the programme. The multidisciplinary, simulation-based approach to team training was deemed a fundamental infrastructure for learning, with participants especially valuing the realistic in situ simulations and educational support. Participants reported positive changes to the OT culture as a result of NetworkZ and this realisation motivated its implementation. In sites with good structural support, NetworkZ implementation proceeded quickly and participants reported rapid cultural change towards improved teamwork and communication in their OTs.

CONCLUSION

Implementation challenges exist and strategies to overcome these are informing future implementation of NetworkZ. Embedding the programme as business as usual across a nation requires significant and sustained support at all levels. However, the potential gains in patient safety and workplace culture from widespread multidisciplinary team training are substantial. Trial registration number ACTRN12617000017325.

Geographical and population disparities in timely access to prehospital and advanced level emergency care in New Zealand: a cross-sectional study

OBJECTIVE

Rapid access to advanced emergency medical and trauma care has been shown to significantly reduce mortality and disability. This study aims to systematically examine geographical access to prehospital care provided by emergency medical services (EMS) and advanced-level hospital care, for the smallest geographical units used in New Zealand and explores national disparities in geographical access to these services.

DESIGN

Observational study involving geospatial analysis estimating population access to EMS and advanced-level hospital care.

SETTING

Population access to advanced-level hospital care via road and air EMS across New Zealand.

PARTICIPANTS

New Zealand population usually resident within geographical census meshblocks.

PRIMARY AND SECONDARY OUTCOME MEASURES

The proportion of the resident population with calculated EMS access to advanced-level hospital care within 60 min was examined by age, sex, ethnicity, level of deprivation and population density to identify disparities in geographical access.

RESULTS

An estimated 16% of the New Zealand population does not have timely EMS access to advanced-level hospital care via road or air. The 700 000 New Zealanders without timely access lived mostly in areas of low-moderate population density. Indigenous Māori, New Zealand European and older New Zealanders were less likely to have timely access.

CONCLUSIONS

These findings suggest that in New Zealand, geographically marginalised groups which tend to be rural and remote communities with disproportionately more indigenous Māori and older adults have poorer EMS access to advanced-level hospitals. Addressing these inequities in rapid access to medical care may lead to improvements in survival that have been documented for people who experience medical or surgical emergencies.

Effect of a text message intervention on alcohol-related harms and behaviours: secondary outcomes of a randomised controlled trial

OBJECTIVE

Mobile Health approaches show promise as a delivery mode for alcohol screening and brief intervention. The 'YourCall' trial evaluated the effect of a low-intensity mobile phone text message brief intervention compared with usual care on hazardous drinking and alcohol-related harms among injured adults. This paper extends our previously published primary outcome analysis which revealed a significant reduction in hazardous drinking associated with the intervention at 3 months, with the effect maintained across 12 months follow-up. The objective of the current study was to evaluate the effect of the intervention on alcohol-related harms and troubles and help-seeking behaviours (secondary outcomes) at 12-months follow-up.

RESULTS

A parallel two-group, single-blind, randomised controlled trial was conducted in 598 injured inpatients aged 16-69 years identified as having medium-risk hazardous drinking. Logistic regression models applied to 12-month follow-up data showed no significant differences between intervention and control groups in self-reported alcohol-related harms and troubles and help-seeking behaviours. Although this text message intervention led to a significant reduction in hazardous alcohol consumption (previously published primary outcome), changes in self-reported alcohol-related harms and troubles and help seeking behaviours at 12-months follow up (secondary outcomes) were small and non-significant.

TRIAL REGISTRATION

ACTRN12612001220853. Retrospectively registered 19 November 2012.

Incidence and outcomes of major trauma in New Zealand: findings from a feasibility study of New Zealand's first national trauma registry

AIMS

The aim of the study was to pilot the feasibility of long-term outcomes data collection from adult major trauma survivors in New Zealand. This initial paper aims to characterise the New Zealand major trauma population in terms of long-term disability and functional outcomes after major trauma.

METHODS

A prospective cohort study of adults who had survived major trauma was conducted between June 2015 and December 2016 at two major trauma centres in Auckland.

RESULTS

Of 256 trauma referrals, 112 (44%) were confirmed eligible and consented. One hundred completed the survey at six months and 83 at 12 months. A majority of the study sample were male (72%), under 65 years (84%), with a disproportionally higher number of Māori in the sample (23%). At six months post-injury, the majority of participants were categorised as experiencing either moderate disability (37%) or good recovery (42%). Half of the participants experienced moderate pain at both 6 and 12 months post-injury (50% and 52% respectively), and problems with their usual activities at six months post-injury (51%).

CONCLUSIONS

Most study participants made a good recovery, but there was still a large group of people experiencing disability, pain and not in paid employment at 12 months post-injury.

Improving the quality of administration of the Surgical Safety Checklist: a mixed methods study in New Zealand hospitals

While the WHO Surgical Safety Checklist (the Checklist) can improve patient outcomes, variable administration can erode benefits. We sought to understand and improve how operating room (OR) staff use the Checklist. Our specific aims were to: determine if OR staff can discriminate between good and poor quality of Checklist administration using a validated audit tool (WHOBARS); to determine reliability and accuracy of WHOBARS self-ratings; determine the influence of demographic variables on ratings and explore OR staff attitudes to Checklist administration.

DESIGN

Mixed methods study using WHOBARS ratings of surgical cases by OR staff and two independent observers, thematic analysis of staff interviews.

PARTICIPANTS

OR staff in three New Zealand hospitals.

OUTCOME MEASURES

Reliability of WHOBARS for self-audit; staff attitudes to Checklist administration.

RESULTS

Analysis of scores (243 participants, 2 observers, 59 cases) supported tool reliability, with 87% of WHOBARS score variance attributable to differences in Checklist administration between cases. Self-ratings were significantly higher than observer ratings, with some differences between professional groups but error variance from all raters was less than 10%. Key interview themes (33 interviewees) were: Team culture and embedding the Checklist, Information transfer and obstacles, Raising concerns and 'A tick-box exercise'. Interviewees felt the Checklist could promote teamwork and a safety culture, particularly enabling speaking up. Senior staff were of key importance in setting the appropriate tone.

CONCLUSIONS

The WHOBARS tool could be useful for self-audit and quality improvement as OR staff can reliably discriminate between good and poor Checklist administration. OR staff self-ratings were lenient compared with external observers suggesting the value of external audit for benchmarking. Small differences between ratings from professional groups underpin the value of including all members of the team in scoring. We identified factors explaining staff perceptions of the Checklist that should inform quality improvement interventions.

Bologna guidelines for diagnosis and management of adhesive small bowel obstruction (ASBO): 2017 update of the evidence-based guidelines from the world society of emergency surgery ASBO working group

Background

Adhesive small bowel obstruction (ASBO) is a common surgical emergency, causing high morbidity and even some mortality. The adhesions causing such bowel obstructions are typically the footprints of previous abdominal surgical procedures. The present paper presents a revised version of the Bologna guidelines to evidence-based diagnosis and treatment of ASBO. The working group has added paragraphs on prevention of ASBO and special patient groups.

Methods

The guideline was written under the auspices of the World Society of Emergency Surgery by the ASBO working group. A systematic literature search was performed prior to the update of the guidelines to identify relevant new papers on epidemiology, diagnosis, and treatment of ASBO. Literature was critically appraised according to an evidence-based guideline development method. Final recommendations were approved by the workgroup, taking into account the level of evidence of the conclusion.

Recommendations

Adhesion formation might be reduced by minimally invasive surgical techniques and the use of adhesion barriers. Non-operative treatment is effective in most patients with ASBO. Contraindications for non-operative treatment include peritonitis, strangulation, and ischemia. When the adhesive etiology of obstruction is unsure, or when contraindications for non-operative management might be present, CT is the diagnostic technique of choice. The principles of non-operative treatment are nil per os, naso-gastric, or long-tube decompression, and intravenous supplementation with fluids and electrolytes. When operative treatment is required, a laparoscopic approach may be beneficial for selected cases of simple ASBO.Younger patients have a higher lifetime risk for recurrent ASBO and might therefore benefit from application of adhesion barriers as both primary and secondary prevention.

Discussion

This guideline presents recommendations that can be used by surgeons who treat patients with ASBO. Scientific evidence for some aspects of ASBO management is scarce, in particular aspects relating to special patient groups. Results of a randomized trial of laparoscopic versus open surgery for ASBO are awaited.

The New Zealand Major Trauma Registry: the foundation for a data-driven approach in a contemporary trauma system

AIM

To describe the development of the New Zealand Major Trauma Registry (NZ-MTR) and the initial experiences of its use.

METHOD

The background to the development of the NZ-MTR was reviewed and the processes undertaken to implement a single-instance of a web-based national registry described. A national minimum dataset was defined and utilised. Key structures to support the Registry such as a data governance group were established.

RESULTS

The NZ-MTR was successfully implemented and is the foundation for a new, data-driven model of quality improvement. In its first year of operation over 1,300 patients were entered into the Registry although coverage is not yet universal. Overall incidence is 40.8 major trauma cases/100,000 population. The incidence in the Māori population was 69/100,000 compared with 31/100,000 in the non-Māori population. Case fatality rate was 9%. Three age peaks were observed at 20-24 years, 50-59 years and above 85 years. Road traffic crashes accounted for 50% of all caseload. A significant proportion of major trauma patients (21%) were transferred to one or more hospitals before reaching a definitive care facility.

CONCLUSION

Despite the challenges working across multiple jurisdictions, initiation of a single-instance web-based registry has been achieved. The NZ-MTR enables New Zealand to have a national view of trauma treatment and outcomes for the first time. It will inform quality improvement and injury prevention initiatives and potentially decrease the burden of injury on all New Zealanders.

Acute mesenteric ischemia: guidelines of the World Society of Emergency Surgery

Acute mesenteric ischemia (AMI) is typically defined as a group of diseases characterized by an interruption of the blood supply to varying portions of the small intestine, leading to ischemia and secondary inflammatory changes. If untreated, this process will eventuate in life threatening intestinal necrosis. The incidence is low, estimated at 0.09–0.2% of all acute surgical admissions. Therefore, although the entity is an uncommon cause of abdominal pain, diligence is always required because if untreated, mortality has consistently been reported in the range of 50%. Early diagnosis and timely surgical intervention are the cornerstones of modern treatment and are essential to reduce the high mortality associated with this entity. The advent of endovascular approaches in parallel with modern imaging techniques may provide new options. Thus, we believe that a current position paper from World Society of Emergency Surgery (WSES) is warranted, in order to put forth the most recent and practical recommendations for diagnosis and treatment of AMI. This review will address the concepts of AMI with the aim of focusing on specific areas where early diagnosis and management hold the strongest potential for improving outcomes in this disease process.

Some of the key points include the prompt use of CT angiography to establish the diagnosis, evaluation of the potential for revascularization to re-establish blood flow to ischemic bowel, resection of necrotic intestine, and use of damage control techniques when appropriate to allow for re-assessment of bowel viability prior to definitive anastomosis and abdominal closure.

Is high-quality trauma care "business as usual" in New Zealand?

New Zealand is on the cusp of establishing a world-class trauma system. Many of the building blocks are in place with national and regional guidelines in both the pre-hospital and hospital phases of care established. A dedicated clinical workforce is available in all DHBs and national data available through the Major Trauma Registry. The greatest threat to achieving high-quality trauma care in New Zealand at this point is governance stability rather than clinical variability. Now is the time to lock the trauma system into a framework not subject to political or bureaucratic whims.

Preventable injury deaths: identifying opportunities to improve timeliness and reach of emergency healthcare services in New Zealand

Background

Traumatic injury is a leading cause of premature death and health loss in New Zealand. Outcomes following injury are very time sensitive, and timely access of critically injured patients to advanced hospital trauma care services can improve injury survival.

Objective

This cross-sectional study will investigate the epidemiology and geographic location of prehospital fatal injury deaths in relation to access to prehospital emergency services for the first time in New Zealand.

Design and study population

Electronic Coronial case files for the period 2008–2012 will be reviewed to identify cases of prehospital fatal injury across New Zealand.

Methods

The project will combine epidemiological and geospatial methods in three research phases: (1) identification, enumeration, description and geocoding of prehospital injury deaths using existing electronic injury data sets; (2) geocoding of advanced hospital-level care providers and emergency land and air ambulance services to determine the current theoretical service coverage in a specified time period and (3) synthesising of information from phases I and II using geospatial methods to determine the number of prehospital injury deaths located in areas without timely access to advanced-level hospital care.

Discussion

The findings of this research will identify opportunities to optimise access to advanced-level hospital care in New Zealand to increase the chances of survival from serious injury. The resulting epidemiological and geospatial analyses will represent an advancement of knowledge for injury prevention and health service quality improvement towards better patient outcomes following serious injury in New Zealand and similar countries.

Effectiveness of the YourCall™ text message intervention to reduce harmful drinking in patients discharged from trauma wards: protocol for a randomised controlled trial

BACKGROUND

Behavioural brief interventions (BI) can support people to reduce harmful drinking but multiple barriers impede the delivery and equitable access to these. To address this challenge, we developed YourCall™, a novel short message service (SMS) text message intervention incorporating BI principles. This protocol describes a trial evaluating the effectiveness of YourCall™ (compared to usual care) in reducing hazardous drinking and alcohol related harm among injured adults who received in-patient care.

METHODS/DESIGN

Participants recruited to this single-blind randomised controlled trial comprised patients aged 16-69 years in three trauma-admitting hospitals in Auckland, New Zealand. Those who screened positive for moderately hazardous drinking were randomly assigned by computer to usual care (control group) or the intervention. The latter comprised 16 informational and motivational text messages delivered using an automated system over the four weeks following discharge. The primary outcome is the difference in mean AUDIT-C score between the intervention and control groups at 3 months, with the maintenance of the effect examined at 6 and 12 months follow-up. Secondary outcomes comprised the health and social impacts of heavy drinking ascertained through a web-survey at 12 months, and further injuries identified through probabilistic linkage to national databases on accident insurance, hospital discharges, and mortality. Research staff evaluating outcomes were blinded to allocation. Intention-to-treat analyses will include assessment of interactions based on ethnicity (Māori compared with non-Māori).

DISCUSSION

If found to be effective, this mobile health strategy has the potential to overcome current barriers to implementing equitably accessible interventions that can reduce harmful drinking.

TRIAL REGISTRATION

Universal Trial Number (UTN) U1111-1134-0028. ACTRN12612001220853 . Submitted 8 November 2012 (date of enrolment of first participant); Version 1 registration confirmed 19 November 2012. Retrospectively registered.