The use of TASER devices in UK policing: an update for clinicians following the recent introduction of the TASER 7.

Taser was introduced into UK policing in 2003 to bridge the operational gap between use of incapacitant sprays and firearms. Use of force reporting in the UK indicates that Taser is relatively safe provided that it is used lawfully. Taser use can result in injuries and has been implicated in a small number of deaths. The latest version of the weapon, the TASER 7, has entered UK policing. The TASER 7 uses a novel probe that has implications for the medical community. A review of Taser medical effects and probe removal for TASER 7 are presented.

Air Medical Support for a Peripheral Hospital in Southern Israel: An Evolving Role for the Air Ambulance and Emergency Department Clinicians.

The early use of helicopters on the battlefields of Korea and Vietnam led to the introduction of "air ambulances" into civilian practice. Initially, these aircraft were tasked to retrieve casualties and provide conventional paramedic care at the scene and en route to the hospital. The introduction of advanced medical teams on helicopters led to the evolution of helicopter emergency medical service units. Yoseftal Hospital is a 65-bed hospital serving the town of Eilat in southern Israel. It does not offer full intensive care or specialist services but does provide general surgical, medical, pediatric, and psychiatric services. The hospital is 100 km from the nearest tertiary center in Be'er Sheva, an ambulance journey of 2 hours across desert. The hospital serves a population of 70,000 residents and up to 500,000 tourists. Recognizing the need to provide a facility to transfer critical or complex patients, in August 2021, the Israeli Ministry of Health provided a dedicated helicopter to Yoseftal Hospital. The first 100 missions are presented. Forty-four missions were for cardiac presentations. For patients with ST-segment elevation myocardial infarction, the median time from the initial medical contact at Yoseftal to reception at the tertiary center was 141 minutes. Other transfers were for ear, nose, and throat (2); neurosurgical (14); trauma (9); respiratory (6); obstetrics and gynecology (3); and pediatric services (14) and nontraumatic surgical emergencies (15). Our experience validates the need for this resource and highlights the importance of robust clinical, operational, and transfer protocols between Yoseftal and the receiving specialist units. The challenging and diverse clinical activity requires additional skills and competencies for the critical care paramedics on the aircraft. Integrating the flight crew into the emergency department team facilitated early activation of the aircraft and expedited patient preparation for flight. Our experience describes an evolving new role for the helicopter-support for a remote peripheral hospital.

The 21-foot principle: Effects of age and sex on knife attack characteristics.

INTRODUCTION: Knives are commonly-used weapons in criminal activities and interpersonal assaults worldwide. Injury reports have identified the upper body as the most frequent location of knife injuries, and that stabbing attacks are more fatal than slashing attacks. The first two aims of the study explore whether the type of attack and attack location could be predicted from age and sex group. The following aims compared attack times between sex and age groups and evaluated the influence of subject characteristics on attack duration. The exploratory aim surveyed subjects on attack location during the scenario if the target was not wearing body armor. METHODS: A total of 74 subjects (male: n = 40; female: n = 34) participated. Subjects were video recorded during a 21-foot (ft) attack and participated in follow-up questions and completed a push-up test to determine physical strength. Attack time (AT), concealment location, attack type, and demographic information were correlated to age group and sex. RESULTS: Mean AT from 21 ft was 2.40 ± 0.47 s, with the fastest of 1.75 s. The most commonly observed concealment location, attack type, and attack location on the target included the right hip (n = 62), stab (n = 62), and the chest (n = 28), respectively. After controlling for push-up ability (p < 0.05), no differences were reported between any combination of sex and age group in AT from 21 ft. Push-up ability was the sole significant predictor of AT from 21 ft (p < 0.05). Twenty-eight subjects reported they purposely avoided the body armor vest during the 21 ft attack. CONCLUSION: Law enforcement officers are encouraged to train for quick defensive or offensive responses, such as hand-to-knife combat or rapid firearm skills that can be performed in under 1.75 s. Stronger people were predicted to complete the 21 ft attack faster.

Mechanical chest compressions as a last-ditch attempt to salvage a profoundly hypoxic but normotensive patient with a massive pulmonary embolism.

Massive pulmonary embolism is a common cause of morbidity and mortality. For patients presenting with massive pulmonary embolism, severe hypoxia is usually associated with severe hypotension. These patients should be considered for thrombectomy should thrombolysis and respiratory support fail to improve their condition. Should thrombectomy not be available or suitable, consideration should be given to offering mechanical chest compressions to 'break up the clot'. We describe a case in which this seemingly led to survival and full recovery.

Human factors and error prevention in emergency medicine.

Emergency departments are one of the highest risk areas in health care. Emergency physicians have to assemble and manage unrehearsed multidisciplinary teams with little notice and manage critically ill patients. With greater emphasis on management and leadership skills, there is an increasing awareness of the importance of human factors in making changes to improve patient safety. Non-clinical skills are required to achieve this in an information-poor environment and to minimise the risk of errors. Training in these non-clinical skills is a mandatory component in other high-risk industries, such as aviation and, needs to be part of an emergency physician's skill set. Therefore, there remains an educational gap that we need to fill before an emergency physician is equipped to function as a team leader and manager. This review will examine the lessons from aviation and how these are applicable to emergency medicine. Solutions to averting errors are discussed and the need for formal human factors training in emergency medicine.

Impact of the Surviving Sepsis Campaign on the recognition and management of severe sepsis in the emergency department: are we failing?

BACKGROUND: Severe sepsis/septic shock (SS/SS) has a high mortality. The past decade lays witness to a concerted international effort to tackle this problem through the Surviving Sepsis Campaign (SSC). However, bundle delivery remains problematic. In 2009, the College of Emergency Medicine (CEM) set out guidelines for the management of SS/SS. These set the standards for this audit. OBJECTIVES: To assess the recognition and management of patients presenting with SS/SS across three emergency departments (EDs) within the West Midlands. METHODS: Data were collected retrospectively over a 3-month period. Patients in the ED with a diagnostic code of, or presenting complaint suggestive of, sepsis, had their scanned notes assessed for evidence of SS/SS. Compliance with the CEM guidelines, and evidence of referral to the intensive care staff was evaluated. RESULTS: 255 patients with SS/SS were identified. Of these, 17% (44/255) were documented as septic by ED staff. The CEM standard of care was received in 41% of those with a documented diagnosis of severe sepsis in the ED, and 23% of patients with SS/SS overall. 89% of patients received the 'treatment' aspects of care: oxygen, IV antibiotics and IV fluids. Twelve patients with a raised lactate level and normal blood pressure (cryptic shock) failed to receive fluid resuscitation. 71% of patients with SS/SS had no documented discussion or consideration of referral to the intensive care unit. CONCLUSIONS: The SSC has had some impact; however, there is still a long way to go. It is assumed that the picture is similar in EDs across the UK and recommendations are made based on these local findings.

Value of initial radiological investigations in patients admitted to hospital with appendicitis, acute gallbladder disease or acute pancreatitis.

OBJECTIVES: To determine the value of abdominal radiography (AXR) for investigating patients attending hospital with a first episode of appendicitis (requiring appendicectomy), acute gallbladder disease or acute pancreatitis, and to identify if early (within 18 h) ultrasound or CT scanning reduces the use of AXR. Setting Two acute teaching hospitals during August-September 2008 and February-March 2009. PARTICIPANTS: Audit of 355 patients (179 patients (50%) who underwent appendicectomy, 128 (36%) admitted with acute gallbladder disease and 48 (14%) with acute pancreatitis). RESULTS: AXR was performed in 53 patients (30%) who underwent appendicectomy, 73 (57%) with acute gallstone disease and 38 (78%) with acute pancreatitis. The useful abnormality pick-up rate was low; 9% (n=5), 5% (n=4) and 0% (n=0), respectively. When used, ultrasound confirmed the diagnosis in 84% (140/166) and CT scanning (either after AXR or as first line) in 97% (34/35). 42 patients underwent early ultrasound (n=27) or CT scanning (n=15), which together reduced the rate of AXR usage by 34% (14/42 early vs 107/159 delayed, p<0.001). CONCLUSIONS: AXR does not aid diagnosis of these conditions but is still performed. Early ultrasound or CT scanning reduces the use of AXR and are more sensitive; methods of providing these should be explored.

Dismal performance in response to coronavirus: the problem no one wants to discuss - the NHS.

The UK death toll from COVID-19 is currently the fourth worst in the world behind the USA, Brazil and Mexico. Possible reasons include delays in lockdown, the provision of scientific advice to government and the decisions that government made based on the information they were given. When we review our performance and plan for the next public health crisis, we need to be brave enough to dare to challenge the NHS and its advisors.

Retention of information by emergency department staff at ambulance handover: do standardised approaches work?

BACKGROUND: Ambulance crews usually have just one opportunity to convey information about their patients to emergency department (ED) personnel. ED staff receiving patients from ambulance crews will naturally be focussed on their own initial assessment of the patient, which often distracts them from listening carefully to the ambulance crew's handover. Important information may be lost after the ambulance crew leaves. METHODS: Current handover practice was evaluated in two large EDs. A structured DeMIST format for verbal handover of pre-hospital information from the ambulance crew to receiving ED staff was then introduced into one of the departments. The number of packets of information in each verbal handover and the accuracy of ED staff's recall was assessed. RESULTS: 56.6% of the information given at verbal handover by the ambulance crews was accurately retained by ED staff before the introduction of DeMIST. Only 49.2% of the information given at verbal handover by the ambulance crews in the DeMIST format was accurately retained by ED staff. DISCUSSION: Communications training, clinical team leadership and team discipline must support the communication process between ambulance crews and the ED team to ensure that important pre-hospital information is not lost or misinterpreted. Electronic patient report forms are currently under development and may provide a partial solution for the transfer of accurate pre-hospital information to ED staff.

Endotracheal tube and laryngeal mask airway cuff volume changes with altitude: a rule of thumb for aeromedical transport.

BACKGROUND: Helicopters and light (unpressurised) aircraft are used increasingly for the transport of ventilated patients. Most of these patients are ventilated through endotracheal tubes (ETTs), others through laryngeal mask airways (LMAs). The cuffs of both ETTs and LMAs inflate with increases in altitude as barometric pressure decreases (30 mbar/1000 feet). Tracheal mucosa perfusion becomes compromised at a pressure of approximately 30 cm H2O; critical perfusion pressure is 50 cm H2O. METHODS: The change in dimensions of the inflated cuffs of a size 8 ETT and a size 5 LMA were measured with digital callipers at 1000 feet intervals in the unpressurised cabin of an Agusta 109 helicopter used by the Warwickshire and Northamptonshire Air Ambulance. RESULTS: A linear expansion in cuff dimensions as a function of altitude increase was identified. For ETTs, a formula for removal of air from the cuff with increasing altitude was calculated and is recommended for use in aeromedical transfers. This is 1/17x1.1 = 0.06 ml/1000 foot ascent/ml initial cuff inflation. CONCLUSION: The data for LMA cuff expansion failed to show significant correlation with altitude change. Further work is required to determine a similar rule of thumb for LMA cuff deflation.

Comparative study illustrating difficulties educating the public to respond to chemical terrorism.

BACKGROUND: In recent years, the perceived threat of chemical terrorism has increased. It is hoped that teaching civilians how to behave during a chemical incident will decrease the number of "worried well" patients at hospitals, reduce secondary contamination, and increase compliance with the instructions of emergency services. The governments of the United Kingdom and Israel sent booklets to every household in their respective countries. In Israel, the civilian population was issued chemical personal protective equipment (CPPE). METHODS: The effectiveness of these public education programs was assessed using a scenario-based questionnaire that was distributed to 100 respondents in Birmingham, UK and Jerusalem, Israel. Respondents were asked how they would behave in three deliberate chemical release scenarios and how they would seek information and help. RESULTS: Only 33% of the UK respondents and 22% of the Israeli respondents recalled reading the government booklets. When asked what they would do after being contaminated in a deliberate release, approximately half of the respondents ranked seeking medical care at a hospital as the most appropriate action. The preferred sources of information in the wake of a chemical strike were (in descending order): radio, television, and the Internet. Approximately half of the respondents would call emergency services for information. Forty-one percent of the UK respondents and 33% of Israeli respondents stated that they either would call or go to the nearest hospital to seek information. CONCLUSIONS: The public information campaigns in both countries have had a limited impact. Many citizens claimed they would self-present to the nearest hospital following a chemical attack rather than waiting for the emergency services. A similar response was witnessed in the Sarin attacks in Tokyo and the 1991 Scud missile attacks in Israel. Current UK doctrine mandates that specialist decontamination teams be deployed to the scene of a chemical release. However, this takes > 1 hour, and it requires at least 30 minutes to don hospital CPPE. Therefore, it is imperative that hospitals are equipped to cope with unannounced self-presenters after a chemical attack. This requires CPPE and protocols that are easier to use.

The relative risk of police use-of-force options: evaluating the potential for deployment of electronic weaponry.

An electronic weapon, the Taser M26, has recently entered the use-of-force continuum for police officers in England and Wales and is currently licensed for use by authorised firearms officers only. The aim of this report was to assess the relative risk of injury to officers and subjects of police use-of-force options and to evaluate whether the current positioning of the M26 in the use-of-force hierarchy is appropriate. We analysed use-of-force data from Northamptonshire Police Force and M26 field use data from TASER International. We found officer injury rates associated with M26 deployment were lower than those for CS spray and baton use. Subject injury rates were lower in M26 deployment than in deployment of CS spray, batons or police dogs. We suggest that the M26 should be made more widely available to police officers in the UK.

Ambulance alerting of paediatric emergencies to a general hospital.

BACKGROUND: There are at present only a small number of dedicated paediatric emergency departments in the UK. Severely ill and injured children are often taken by ambulance to the nearest general hospital. Efforts have been made to provide better care for these sickest children pending the establishment of dedicated paediatric emergency services within general emergency departments by 2004 [Royal College of Paediatrics and Child Health; Accident and Emergency Services for Children-Report of a Multidisciplinary Working Party, June 1999]. To learn more of the staffing implications for the establishment of dedicated paediatric emergency units within the general hospital, 30 months of paediatric alert call data are presented. METHODS: A prospective review of paediatric alert calls over 30 months, (from January 1999 until June 2001). All alert calls from the ambulance service to a large urban emergency department were recorded on a specific form. Data from these forms is presented. RESULTS: There were 1754 alert calls of all types during this 30-month period, of which 153 (9%) were for patients under the age of 16 (mean 1.2 each week). Of these, 102 (66%) were for medical conditions and 51 (34%) were for trauma. The mean estimated time of arrival from the time of the alert call was 6 min. The majority of both medical and trauma paediatric alert calls occur in the afternoon and progress well into the night. The 51.6% of paediatric medical alert calls and 64.4% of paediatric trauma alert calls occur 'out of normal hours'. There was little reduction in the frequency of alert calls at the weekend. There were no paediatric trauma alert calls between 2 a.m. and 10 a.m., although medical paediatric alert calls continued throughout the night. CONCLUSIONS: Resident senior trauma personnel to manage injured children should be provided until at least midnight. Hospitals that maintain a facility for the reception of sick children must be able to provide a rapid response to paediatric medical emergencies on a 24 h basis. Guidelines for alert calls for ambulance crews are required.

Ambulance crew assessment of trauma severity and alerting practice for trauma patients brought to a general hospital.

INTRODUCTION: Ambulance crews may alert hospitals for patients who are severely unwell. This allows the hospital time to prepare space and equipment, and to assemble an appropriate clinical team to receive and manage the patient immediately on arrival. Over and under alerting by ambulance crews is to be avoided to avoid complacency on one hand, and inadequate reception of severely injured patients on the other. There are currently no formal guidelines for the ambulance service to alert hospitals in appropriate cases. AIMS: To describe the current alerting practice for trauma patients by ambulance crews to a large urban hospital. METHODS: Details of each trauma alert for the hospital for the year 2000 were identified. The Injury Severity Score (ISS) was determined for all trauma patients who were eligible for inclusion into the Trauma Audit Research Network (TARN) for the same year. The two populations were compared. RESULTS: There were 145 trauma patients for whom an alert was made during the year 2000, and there were 504 patients eligible for inclusion into TARN. Ten percent (49) of the TARN patients had an ISS > 15. Twenty-five percent (35/135) of the trauma patients with alerts had been entered into TARN. Seventy-five percent (100/135) of the trauma patients with alerts did not meet the criteria for inclusion into TARN. Forty-three percent (15/35) of the trauma patients with alerts who appeared in TARN had an ISS > 15 (11% of all trauma alerts). Thirty-four TARN-eligible patients with an ISS > 15 were not the subject of a hospital alert. CONCLUSIONS: The majority of patients with major trauma (ISS > 15) were not the subject of a hospital alert by the ambulance service. Seventy-five percent of the patients who were the subject of an alert were not eligible for inclusion into TARN, implying that they did not have serious injury. Pre-hospital trauma severity assessment needs developing with appropriate ambulance protocols, to ensure appropriate alert calls.

Assailant technique in knife slash attacks.

Most knife assault victims attending hospital have slash-type wounds, mainly to the face, with fewer over the upper limb and trunk. Only 11% have multiple wounds. Sixty seven male soldiers were asked to slash a vertical human-sized target with a blade. The method of slashing was recorded for each. Approximately, half used multiple strikes, most attacked at the height of the upper torso. This differs from patterns of knife injury seen in clinical practice. The mechanics of fighting in which the victims fend off strikes or disengage is the likely explanation for these differences.

Preventing and managing aggression and violence in the NHS.

Streaming in emergency departments reduces waiting times and stress, and removes the causes of most violent attacks against staff. In spite of this some people will still attack staff. Staff must be protected by a sound trust policy and effective and realistic training, monitored by a good reporting system.