Shaun Kibler is a Lead Tactical Medicine Instructor for University Hospitals
This month's continuing education will cover Active Shooter/Hostile Event Response (ASHER) and is presented by University Hospitals Tactical Medicine Division.
Part 4
Casualty Evacuation/Removal
Over the last three weeks we reviewed tactics, techniques, and procedures (TTPs) that may be used to access, assess, and stabilize casualties at the active shooter/hostile event. Our last benchmark is casualty evacuation and removal. Fire/EMS personnel are well versed in lifting and moving techniques used for medical/trauma patients and fire victims. Many of these same techniques can and should be used when we train in ASHER. These techniques should be shared with our law enforcement partners during training. We must have an interoperable approach to training across both disciplines.
At the active shooter/hostile event (ASHE), our goals are rapid stabilization at or near the point of wounding and rapid evacuation to definitive care. Casualty evacuation and removal must be downstream of rapid access. Fire/EMS personnel must be prepared to be called forward when they arrive on scene. Once the threat has been isolated, mitigated, or eliminated and security established, we must not delay access to casualties. Upon obtaining access, we will perform first pass actions (initial lifesaving interventions) on all casualties. Fire/EMS personnel must report numbers and locations of casualties to ensure that adequate evacuation resources are called to the scene. Once all casualties have been accounted for, casualty movement must be prioritized over further treatment. The rescuer will then perform second pass actions on all casualties to reassess previous life-saving interventions. Depending on the size of the incident and number of casualties, a casualty collection point (CCP) may be necessary. CCPs are a control measure to assess conditions, actions, and needs. At the CCP, we establish casualty count by precedence and patient type to determine resource allocation and accountability. We should communicate casualty status and situational reports to leaders and responders for logistical and medical needs. Responders must also continually reassess and communicate casualty evacuation categories during phases of care. Do not delay casualty evacuation for any treatment of non-life threats. Casualties should be moved from the CCP to the ambulance exchange point (AEP) as evacuation assets are available.
Interoperable Lift, Drag, and Carry (LDCs) Techniques
Our curriculum includes various lift, drag, and carry techniques for all first responders. Three core LDCs we teach are easily learned and can be implemented in a wide range of context. Using a tool or piece of equipment like a soft litter to move a casualty is always preferred. However, in a MASCAL these things may have limited availability. The first responder must have techniques to fall back on. We should also have a good understanding of lifting techniques and body mechanics. Our three core LDCs are two rescuer techniques that use simple common language. The name of the lift describes the positions of the rescuers. The lifts are as follows:
Most potentially survivable injuries are to the casualty’s torso. Casualties with non-compressible torso hemorrhage (NCTH) in hemorrhagic shock need blood products and surgery. These interventions provided too late do not change outcomes. First responders must be trained in various lift, drag, and carry techniques to effectively and efficiently move a casualty. Soft litters should be stockpiled and readily available for use. These techniques and tools should be used to move casualties to key locations to facilitate rapid transport. First responders with divergent thinking and those who place emphasis on rapid evacuation will make the most profound impact at the ASHE.
Thank you for joining us over the last four weeks. We hope you enjoyed the content. If you are a trainer within your agency or have knowledge and experience in MASCAL related training; please feel free to reach out to contribute to make this the best training we can deliver.
See you next week,
Shaun Kibler
UH Tactical Medicine Division
This month's continuing education will cover Active Shooter/Hostile Event Response (ASHER) and is presented by University Hospitals Tactical Medicine Division.
Part 3
Casualty Stabilization
This week’s casualty care benchmark is stabilization. We use our assessment methodology — Massive Hemorrhage, Airway, Respiration, Circulation, Head/Hypothermia, or MARCH — to guide treatment throughout all phases of care. We must keep in mind that the right intervention must be performed at the right time. The UH Active Shooter/Hostile Event Response Program has identified Job Performance Requirements for all personnel responding to scenes of violence. This is an interoperable framework. The basics of casualty care are what truly save lives.
Job Performance Requirements - Medical Interventions – Basic Skills
Demonstrate tourniquet application
Demonstrate hemorrhage control techniques
Demonstrate basic airway maneuvers
Demonstrate chest seal application
Demonstrate recognition of non-compressible torso hemorrhage and S/Sx of tension pneumothorax
Demonstrate recognition of a casualty in shock
Demonstrate hypothermia prevention/management techniques
Demonstrate recognition of TBI/head injuries
Casualty Stabilization - First Pass and Second Pass
The mindset of our first and second pass actions is to stop the bleeding, keep them breathing, and get to leaving. These are the basic life-saving interventions to be performed on the "X,” known as the point of wounding.
Massive Hemorrhage
Direct Pressure
Pressure Bandage
Wound Packing and Pressure Dressing
Tourniquet Application
Airway
Basic Airway Maneuvers (i.e. head-tilt/chin lift, jaw thrust)
Basic Airway Positioning (i.e. recovery position, tripod position)
Respirations
Recognizing potential non-compressible torso hemorrhage
Recognize open pneumothorax may develop into a tension pneumothorax
Recognizing the immediate need surgical intervention for rapid evacuation to definitive care
Casualty Stabilization – Dedicated Treatment Sectors or Evacuation (En route) Care
Casualty stabilization on the scene should be limited to immediate life-saving interventions. We must not delay transport for any treatment on the scene of a MASCAL or scene of violence. If awaiting transport, we may advance further into our MARCH algorithm. However, the following care is primarily to be conducted during evacuation or en route to definitive care.
Massive Hemorrhage
Reassess all interventions performed in previous phases of care.
Airway
Airway adjunct
Endotracheal Intubation
Supraglottic Airways
Surgical Cricothyroidotomy
Respirations
Application of a chest seal on sucking chest wounds only
Recognize S/Sx of tension pneumothorax
Needle Chest Decompression when tension physiology is present
Circulation
IV/IO Access
Permissive hypotension-based fluid resuscitation for hemorrhagic shock
Tranexamic Acid
Head/Hypothermia
30-degree head elevation
No hypoxic or hypotensive events
Maintain blood pressure above 110mmHg systolic
Prevent hypothermia
Everything Else
Treatment of other injuries found during assessment (i.e., burns, eye injuries, orthopedic injuries)
We must manage our expectations when it comes to providing casualty stabilization at Civilian Public Mass Shootings (CPMS). We advocate that the responder have a mastery of the basics of casualty care. Data shows that few casualties die from exsanguination from extremities. Rescue strategies must go beyond the use of tourniquets to save the few victims with potentially survivable injuries (Smith ER et al). The most common site of potentially survivable injury is the chest. The importance of training our responders to rapidly access casualties so that we may assess and stabilize them at or near the point of wounding cannot be overstated. The skill sets must be there. Next week, discuss the most profoundly beneficial action at the MASCAL - a rapid evacuation plan to definitive care.
See you next week,
Shaun Kibler
UH Tactical Medicine Division
This month's continuing education will cover Active Shooter/Hostile Event Response (ASHER) and is presented by University Hospitals Tactical Medicine Division.
Part 2, Casualty Assessment
Last week, we reviewed the strategies used to assess our casualties under force protection. The second casualty care benchmark we must review is assessment. Tactical Emergency Casualty Care (TECC) operational principles tell us we must have a dedicated casualty assessment methodology. Considered the standard in the military TCCC and civilian TECC/TEMS community is the mnemonic MARCH: Massive Hemorrhage, Airway, Respiration, Circulation, Head/Hypothermia. Using MARCH guides the medical provider with an order of operations to identify and address life-threatening conditions by priority. We will present an in-depth explanation of how MARCH should be applied during ASHER, as it is very nuanced.
Bottom Line Up Front (BLUF):
We utilize MARCH as our dedicated casualty assessment methodology. The full assessment is typically to be completed during evacuation or en route care. Under MASCAL doctrine we must do the most good for the most casualties. Initially, we perform First and Second Pass Actions, which consist of the M.A.R. of the MARCH assessment. These actions are performed on the “X,” at or near the point of wounding. They consist of a rapid blood sweep for compressible hemorrhage, maintaining a patent airway, ensuring effective respirations, and checking the torso for injuries. We find and treat immediate life-threatening conditions only and move on to the next casualty. Provided below is how to perform the M.A.R. sequence.
Massive Hemorrhage
Check pelvis front/back, each leg, neck, each shoulder, armpit, and arm
Airway
Ensure patent airway
Respirations
Check for effective respirations, equal chest rise and fall
Check front and back of torso for injuries
Recognize potential non-compressible torso hemorrhage, and the immediate need for rapid evacuation to definitive care
MASCAL - First Pass Casualty Assessment
At a MASCAL, there will be multiple casualties and limited organic assets. Our actions must differ to rapidly stabilize immediate life threats of all casualties with the limited resources available. MASCAL doctrine is providing the most good for the most casualties. We must recognize that we will not be able to save all casualties. We can only expect to perform limited actions when we are truly overwhelmed. Initial casualty assessment will be focused on identifying massive bleeding and ensuring effective breathing. We call these our First Pass Actions and they are performed on the “X.”
Approach the casualty and observe potential injuries. Introduce yourself, ask the patient's name, and tell them you are there to help. This action is as much a spiritual mindset as it is clinical. The casualty’s answer will provide context for airway patency, mental status, potential TBI, and respiratory status. The key is to establish mental status and determine the casualty’s ability to follow commands.
Initiate the blood sweep; expose and address injuries as found during the "M" sequence. Absent of any obvious massive hemorrhage or unknown source of bleeding we start at the casualty’s pelvis, addressing bleeding from the largest compressible areas to the smallest. The order of the blood sweep, absent of stimulus: pelvis front and back, leg upside and downside, next leg upside and downside, neck above and below collar bone, and then moving to each shoulder. Check first shoulder, armpit, then arm, and move to the other side, shoulder, armpit, and arm. If the provider is drawn to a stimulus of massive bleeding from a casualty, expose and address that injury, but do not become fixated on it. The provider must start the blood sweep sequence over, after if the injury has been addressed, to ensure no other injuries are missed. It is acceptable to jump around within the step, but do not jump steps. Airway compromise, massive facial trauma, and sucking chest wounds may be dramatic, but missing a massive hemorrhage will kill your casualty first. Note that this is a hands-on assessment. You will use your hands in a raking-like motion while performing the blood sweep and when checking the torso for injuries. The provider must look where they are feeling. Do not perform blind blood sweeps, meaning when checking the casualty’s downside you must lift their limb or roll them. Do not place hands under the casualty and solely feel for injuries. Perform the M.A.R. sequence:
Massive Hemorrhage
Check front of the pelvis junctional area
Check back of the pelvis junctional area
Check each leg, one after the other
Check neck above collar bone and below
Check to shoulder girdle
Check first armpit and arm, repeat on other side
Airway
Assess for airway compromise
Ensure patent airway
Respirations
Check for effective respirations, equal chest rise and fall
Check front of torso for injuries
Check back if torso for injuries
Recognize if there is non-compressible torso hemorrhage and an immediate need for rapid evacuation to definitive care
Sole Provider Assessment of Multiple Casualties
Once the first casualty has had a blood sweep, move to the next casualty, and perform a blood sweep. We will continue the blood sweeps until massive bleeding for all casualties have been addressed. We will do the same for Airway of all casualties, and finally Respirations. The scope and application of this technique will be limited. It will be most beneficial in the immediate vicinity of the provider.
MASCAL – Second Pass Casualty Assessment
During our second pass, we reassess lifesaving interventions performed earlier, using M.A.R. Second pass actions are also performed on the “X.” Next, we must prioritize patient movement to a casualty collection point (CCP) or dedicated treatment sector. Our actions must facilitate rapid evacuation to definitive care since we are still operating under MASCAL doctrine. We have limited resources and personnel. Prioritize patient movement off the scene versus treatment. In the event evacuation is delayed, full assessment and in-depth interventions may be performed. However, do not delay transport for any treatment on scene.
The MARCH Assessment
We must continuously reassess our casualties throughout all phases of care. MASCAL doctrine of first and second pass actions follow M.A.R. and are provided on the “X.” The entire MARCH assessment with in-depth medical interventions should be performed during evacuation or en route care. If you arrive at the scene of a MASCAL to transport a casualty, follow the sequence below. You will be reassessing the effectiveness of prior interventions, ensuring no other injuries were missed, and providing further treatment. When working through the circulation step, you will be utilizing full ALS capabilities (discussed next week). When assessing for head injuries we will be looking for battle signs, raccoon eyes, other signs of injury. Lastly, hypothermia is a part of our lethal triad or diamond. We must prevent hypothermia of casualties. Recent data has shown that if casualties arrive to the ED hypothermic (< 35°C), they have a x2 death rate. This data showed hypothermia on arrival was an independent predictor of death, not just a marker of critical illness or “metabolic failure” from shock.
Follow the outline provided above for M.A.R. to complete the MARCH Assessment:
Massive Hemorrhage
Airway
Respirations
Circulation
Assess for signs of hemorrhagic shock.
Inability to follow commands with the presence of massive bleeding is the best indicator of hemorrhagic shock.
Head/Hypothermia
Assess for head injuries and signs of severe TBI
Prevent and treat hypothermia
Everything Else
Any other injury found during the blood sweep or assessment of torso may be noted and addressed after MARCH.
Stay tuned for a hands-on lecture/demonstration of MARCH in the future.
See you next week,
Shaun Kibler
UH Tactical Medicine Division
This month's continuing education will cover Active Shooter/Hostile Event Response (ASHER) and is presented by University Hospitals Tactical Medicine Division.
Casualty Care Benchmarks
Violent mass casualty (MASCAL) incidents are dynamic, complex, and overwhelming. We must have divergent operational training and thinking when preparing our responders to take action at these critical incidents. Training teaches our responders how to think, not what to think. We must offload decision-making when providing casualty care. Once the threat has been mitigated or eliminated, our goal is to provide rapid stabilization at or near the point of wounding and rapid evacuation to definitive care. We can achieve that by training the end user tactics, techniques, and procedures to use during each casualty care benchmark: Access, Assessment, Stabilization, and Evacuation/Removal. These benchmarks provide us with an order of operations while providing care. They will be met no matter the operational context or characteristics. This week we will be reviewing Casualty Access.
Part 1
Casualty Access
Bottom Line Up Front (BLUF):
In the context of ASHER, we access casualties through coordination with our law enforcement partners under force protection. Based on operational context, Unified Command will determine a strategy to facilitate Fire/EMS personnel access to casualties:
Escorted Warm Zone (Rescue Task Force)
Protected Islands & Corridors
Law Enforcement Rescue
The mindset of these strategies may be distilled down to: bring us to them, let us in to work, or bring them to us. Strategies to address the three most likely scenarios that may emerge:
Suspect is neutralized/detained- “Visual Chain” Method
Suspect is barricaded/isolated by officers- “Visual Chain” Method w/ RTF Model
Suspect has fled- or whereabouts are unknown- RTF Model
Introduction
Casualty access is the first barrier to care a responder must problem solve in real time. We are presented with casualty access problems every day in the fire service: a call to service for a rollover motor vehicle crash (MVC) with entrapment, fire victims trapped, or a squad call. We frequently train different casualty access techniques such as vehicle extrication, search/Vent-Enter-Isolate-Search (VEIS), and forcible entry. In the context of ASHER, we access casualties through coordination with our law enforcement partners under force protection. Our actions are heavily context driven and based on the environment. At a scene of violence, three likely scenarios may emerge:
suspect is neutralized/detained
suspect is isolated/barricaded by officers
suspect has fled or whereabouts are unknown
Once security is established, Fire/EMS personnel may access casualties for the purposes of assessment, stabilization and evacuation/removal. Security is ultimately provided by escort or protected areas. All Fire/EMS personnel must understand the strategies used to provide security and access to casualties.
“Public Safety Personnel with good training and conditioning become pragmatic and adaptive with a different form of rationality and reason.” (van Stralen, et al 2017).
Based on operational context, Unified Command will determine a strategy to facilitate Fire/EMS personnel access to casualties. Major limiting factors are the operational footprint, size of the building, and number of organic assets. The following tactics may be used in a combination, phased, or transitional approach.
Escorted Warm Zone (Rescue Task Force)
Once the threat has been isolated or eliminated, additional law enforcement will be assigned with Fire/EMS personnel to create a Rescue Task Force (RTF). Law enforcement personnel will escort Fire/EMS personnel into areas that have been cleared but not secure (Warm Zone). Law enforcement will provide security and move Fire/EMS to access, stabilize and evacuate/remove casualties to designated treatment sectors (i.e. Casualty Collection Points). These areas must be clearly defined and understood by all responders prior to deploying Fire/EMS personnel.
This method can be a quick action to escort Fire/EMS to a specific area of need. As more RTFs are deployed, they must maintain a high level of team and situational awareness to prevent crossfire and congestion issues (i.e. leap frogging).
Use consideration: Escort Fire/EMS personnel to specific geographical areas or used at large open terrain venues. Suspect has fled- or whereabouts are unknown.
Protected Islands and Corridors (Visual Chain)
Once the threat has been isolated or eliminated, additional law enforcement will ultimately converge on target, clear the area, and establish a foothold. They will dominate at hard points within the structure to maintain a warm zone and provide security. This security is established via a visual chain within the structure. These areas must be clearly defined and understood by all responders prior to deploying Fire/EMS personnel.
This method allows Fire/EMS personnel to move freely in the specified areas. However, there must be enough law enforcement personnel to provide adequate security via the visual chain. Use consideration: Suspect is neutralized/detained.
Law Enforcement Rescue
Law enforcement personnel will extract casualties from Hot Zones to Fire/EMS personnel at designated points in either Warm or Cold Zones. Law enforcement may utilize lift, drag, carry techniques, patrol cars or obtain vehicles of opportunity to extract casualties to these areas.
This method can be used when Fire/EMS is under operational (i.e. area denial) or personnel constraints. Law enforcement may utilize this method if their response is overwhelming the tactical need, allowing them to transition to rescue efforts.
Closing
All responders must understand the strategies discussed to allow rapid access to casualties at scenes of violence. Understanding and training these tactics will allow responders to get to the point of wounding faster to achieve our goal of rapid stabilization. Only then can we facilitate rapid evacuation to definitive care. Next week we will discuss using a dedicated casualty assessment methodology.
Best,
Shaun Kibler
UH Tactical Medicine Division