The Intra-aortic Balloon Pump: A Focused Review of Physiology, Transport Logistics, Mechanics, and Complications.

Critical care transport medicine (CCTM) teams are playing an increasing role in the care of patients in cardiogenic shock requiring mechanical circulatory support devices. Hence, it is important that CCTM providers are familiar with the pathophysiology of cardiogenic shock, the role of mechanical circulatory support, and the management of these devices in the transport environment. The intra-aortic balloon pump is a widely used and accessible cardiac support device capable of increasing cardiac output and reducing work on the left ventricle through diastolic augmentation and counterpulsation.

Prehospital Ground and Helicopter-Based Extracorporeal Cardiopulmonary Resuscitation (ECPR) Reduce Barriers to ECPR: A GIS Model.

Introduction: Evidence suggests that Extracorporeal Cardiopulmonary Resuscitation (ECPR) can improve survival rates for nontraumatic out-of-hospital cardiac arrest (OHCA). However, when ECPR is indicated over 50% of potential candidates are unable to qualify in the current hospital-based system due to geographic limitations. This study employs a Geographic Information System (GIS) model to estimate the number of ECPR eligible patients within the United States in the current hospital-based system, a prehospital ECPR ground-based system, and a prehospital ECPR Helicopter Emergency Medical Services (HEMS)-based system.

Association of Geographic Distance and Hospital Characteristics With Use of Interhospital Transfer by Air: A Multicenter Retrospective Study.

Objective: Interhospital transfer by air (IHTA) represents the majority of helicopter air ambulance transports in the United States, but the evaluation of what factors are associated with utilization has been limited. We aimed to assess the association of geographic distance and hospital characteristics (including patient volume) with the use of IHTA.

Methods: This was a multicenter, retrospective study of helicopter flight request data from 2018 provided by a convenience sample of 4 critical care transport medicine programs in 3 US census regions.

The Successful Rotor Wing Transport of 2 Patients Requiring Biventricular Impella Support: A Case Series and Review.

Despite many advances in care, the mortality rate for cardiogenic shock remains high. Because the medical management of patients with cardiogenic shock is limited, many patients often require mechanical circulatory support. As such, cardiogenic shock patients requiring percutaneous ventricular support devices such as the Impella (Abiomed, Danvers, MA) may be encountered by critical care transport crews with increasing frequency.

Lateral Canthotomy Task Trainer in an Educational Small Group for Flight Providers.

Objective: Lateral canthotomy is a rare, emergent, vision-preserving procedure to treat orbital compartment syndrome. Using Ericsson's deliberate practice model, we aimed to develop a multimodal small group intervention including a modified low-fidelity task trainer to improve flight physician knowledge and technical competency for lateral canthotomy in the prehospital context.

Methods: Two cohorts of resident (postgraduate year 1) flight physicians received small group training during an all-day competency-based flight physician orientation.

Defining the Core Content for Transport Physician Training Programs.

In many parts of the world, emergency medical services (EMS) clinical care is traditionally delivered by different levels or types of EMS clinicians, such as emergency medical technicians and paramedics. In some areas, physicians are also included among the cadre of professionals administering EMS-based care. This is especially true in the interfacility transport (IFT) setting.

Management of patients with impella devices or intra-aortic balloon pumps during helicopter air ambulance transport in observational data.

Introduction: Placement of percutaneous ventricular support devices such as an intraaortic balloon pump (IABP) or Abiomed Impella device can treat severe cardiogenic shock. Critical care transport medicine (CCTM) providers frequently manage patients supported by these devices during interfacility transfers, often using a helicopter air ambulance (HAA). An understanding of patient needs and management during transport is essential to informing crew configuration and training, and this study adds to the limited existing data on the HAA transport of this complex patient population.

Statin Administration for ST-Elevation Myocardial Infarction During Rotor Wing Transport.

Objective: The aim of this study was to evaluate the feasibility of statin administration by a critical care transport medicine (CCTM) team during rotor wing transport for ST-elevation myocardial infarction patients to a percutaneous intervention-capable center.

Methods: We conducted a retrospective study at a single CCTM program after an intervention focused on statin administration for ST-elevation myocardial infarction that included a formulary change and a single brief educational presentation to flight physicians. A comparison group of flight nurse practitioners underwent training after the study period and were used as a control.

Impella in Transport: Physiology, Mechanics, Complications, and Transport Considerations.

Cardiogenic shock (CS) represents a spectrum of hemodynamic deficits in which the cardiac output is insufficient to provide adequate tissue perfusion. The Impella (Abiomed Inc, Danvers, MA) device, a contemporary percutaneous ventricular support, is most often indicated for classic, deteriorating, and extremis Society for Coronary Angiography and Intervention stages of CS, which describe CS that is not responsive to optimal medical management and conventional treatment measures. Impella devices are an evolving field of mechanical support that is used with increasing frequency.

Selective Prehospital Advanced Resuscitative Care - Developing a Strategy to Prevent Prehospital Deaths From Noncompressible Torso Hemorrhage.

Hemorrhage, and particularly noncompressible torso hemorrhage remains a leading cause of potentially preventable prehospital death from trauma in the United States and globally. A subset of severely injured patients either die in the field or develop irreversible hemorrhagic shock before they can receive hospital definitive care, resulting in poor outcomes. The focus of this opinion paper is to delineate (a) the need for existing trauma systems to adapt so that potentially life-saving advanced resuscitation and truncal hemorrhage control interventions can be delivered closer to the point-of-injury in select patients, and (b) a possible mechanism through which some trauma systems can train and incorporate select prehospital advanced resuscitative care teams to deliver those interventions.

Predictors of Definitive Airway Sans Hypoxia/Hypotension on First Attempt (DASH-1A) Success in Traumatically Injured Patients Undergoing Prehospital Intubation.

: Prehospital intubation success is routinely treated as a dichotomous outcome based on an endotracheal tube passing through vocal cords regardless of number of attempts or occurrence of hypoxia, or hypotension, which are associated with worse outcomes. We explore patient, provider, and procedure-related variables associated with successful definitive airway sans hypoxia/hypotension on first attempt (DASH-1A) in traumatically injured subjects undergoing endotracheal intubation at the scene of injury by a helicopter EMS system.: This single-center retrospective chart review included patients with traumatic injuries and at least one attempted intubation by helicopter EMS at the scene of injury.

Prehospital Tranexamic Acid Administration During Aeromedical Transport After Injury.

Background: Tranexamic acid (TXA) has been shown to reduce mortality in the treatment of traumatic hemorrhage. This effect seems most profound when given early after injury. We hypothesized that extending a protocol for TXA administration into the prehospital aeromedical setting would improve outcomes while maintaining a similar safety profile to TXA dosed in the emergency department (ED).

Reducing Door-in Door-out Intervals in Helicopter ST-segment Elevation Myocardial Infarction Interhospital Transfers.

Background: Many health systems rely on helicopter EMS (HEMS) to transfer ST-elevation myocardial infarction (STEMI) patients for percutaneous coronary intervention (PCI) to a hospital with a catheterization laboratory. Mortality rates increase with the time to reperfusion, so reducing delays is imperative. For interhospital STEMI transfers, the time spent in the initial hospital from arrival until departure (door-in to door-out interval or DIDO) should be minimized.

Shorter times to packed red blood cell transfusion are associated with decreased risk of death in traumatically injured patients.

Background: Hemorrhage is a leading cause of death in traumatically injured patients. Currently, the importance of earlier administration of packed red blood cells (pRBC) to improve outcomes is limited. We evaluated the association of earlier pRBC administration and mortality when compared with later transfusion initiation.

Ground emergency medical services requests for helicopter transfer of ST-segment elevation myocardial infarction patients decrease medical contact to balloon times in rural and suburban settings.

Objectives:   ST-segment elevation myocardial infarction (STEMI) care is time-dependent. Many STEMI patients require interhospital helicopter transfer for percutaneous coronary intervention (PCI) if ground emergency medical services (EMS) initially transport the patient to a non-PCI center. This investigation models potential time savings of ground EMS requests for helicopter EMS (HEMS) transport of a STEMI patient directly to a PCI center, rather than usual transport to a local hospital with subsequent transfer.

Helicopter scene response for a STEMI patient transported directly to the cardiac catheterization laboratory.

At 2:10 pm, a 40-year-old Caucasian woman with no known medical history called 911 complaining of substernal, crushing chest pain that had started 2 to 3 hours before she called emergency medical services (EMS). EMS arrived at 2:24 pm and obtained a 12-lead electrocardiogram (ECG) diagnostic of ST-segment elevation myocardial infarction (STEMI) at 2:36 pm. University Air Care was requested by local EMS at 2:42 pm to respond directly to the cardiac scene in rural Ohio for rapid transport to a facility capable of performing percutaneous coronary intervention (PCI).

Reperfusion is delayed beyond guideline recommendations in patients requiring interhospital helicopter transfer for treatment of ST-segment elevation myocardial infarction.

Study Objective: Early reperfusion portends better outcomes for ST-segment elevation myocardial infarction (STEMI) patients. This investigation estimates the proportions of STEMI patients transported by a hospital-based helicopter emergency medical services (EMS) system who meet the goals of 90-minute door-to-balloon time for percutaneous coronary intervention or 30-minute door-to-needle time for fibrinolysis.

Methods: This was a multicenter, retrospective chart review of STEMI patients flown by a hospital-based helicopter service in 2007.

Critical burn patient with an unknown neuromuscular disease: conclusion.

A 37-year-old man was severely burned while trying to fill a lighter with fuel while smoking. He sustained full-thickness (third-degree) burns over 60% to 70% of his body, including the oropharynx. A ground-based paramedic was unable to orotracheally intubate the patient after the administration of morphine and diazepam.