Quick and accurate triaging of stroke symptoms and transport
to the right kind of facility are critical to patient outcomes. (Getty
Images)
Reducing the time from onset to treatment can make the
difference between improving survival and prognosis or risking patient
death or disability. Patient care begins the moment the EMS provider
arrives and starts watching the systems, identifying the condition,
triaging, communicating with the hospital team and making decisions that
can better prepare them to receive and stabilize the patient.
But two key challenges at the prehospital provider level
can lead to delays that impact a patient’s chances of survival and
recovery:
1. Assessing the type and severity of stroke in a prehospital environment.
2. Finding an appropriate
closest (not just closest) hospital with the medical team, equipment and
level of care needed to treat the stroke patient.
THE CHALLENGE IN ASSESSING AND TRIAGING STROKE PATIENTS
Multiple stroke assessment scales have been developed to
help both prehospital and in-hospital clinicians determine the
likelihood of stroke in a patient exhibiting symptoms of stroke. Because
“time is brain,” quick and accurate assessment with severity scoring of
a stroke is more likely to lead to a better outcome.
While NIHSS scale is used successfully in the hospital
setting to determine the severity of stroke and help guide stroke
therapy decisions, it measures 15 clinical functions or deficits, so the
time it takes to complete may be impractical for the ambulance.
EMS providers in a prehospital setting need to be familiar
with a range of stroke assessment scales. While all will measure
voluntary muscle use and recognize generalized signs of stroke, they are
not all equal in their ability to identify the type of stroke.
According to this report from the National Institutes of Health , there is no single gold standard.
Some assessment protocols have more steps and take more
time to complete, while others require the provider to make manual
calculations or complete checklists. Scales like the Cincinnati
Prehospital Stroke Scale (CPSS) or the Rapid Arterial Occlusion
Evaluation (RACE) scale are short, simple, easy to remember and avoid
the need for calculations – thus making them more feasible in the
ambulance.
However, they may miss the specificity needed to identify
certain types of stroke, like a symptomatic large anterior vessel
occlusion (sLAVO, or simply LVO), which might require the patient to
receive endovacscular (EVT) treatment at a comprehensive stroke center.
This can become a critical issue for patient outcomes.
According to a study comparing prehospital scales for predicting sLAVO , the difficulty in reliably identifying sLAVO can cause delays in patient care.
“Because sLAVO cannot be reliably identified in the
ambulance, patients suspected of acute stroke are often transferred to
the nearest hospital (often a PSC) to start IVT as soon as possible. For
patients with sLAVO, this routing leads to a median of 60 to 109
minutes’ delay due to interhospital transfers, with associated worse
functional outcomes. Prehospital identification of patients with sLAVO
enabling direct allocation to a CSC would greatly reduce delays to EVT
treatment and improve clinical outcomes.”[1]
Triaging and identifying the stroke type according to
stroke assessment and prediction scales is only the first challenge. The
second is getting the patient to a medical facility with the
appropriate team and resources in place – in accordance with local
protocols that may or may not allow the EMS provider to bypass the
nearest hospital in favor of one with the right resources.
ALLM’s JoinTriage app helps to solve both of these challenges.
MAKE ASSESSMENT MORE ACCURATE AND TRIAGING QUICKER
The JoinTriage app
from ALLM helps EMS providers quickly and accurately triage patients
and ensure they receive the care they need as quickly as possible.
JoinTriage solves and speeds up the triage challenge with
the power of artificial intelligence. Within two minutes, the app walks
the user through a new set of protocols (developed by ALLM in clinical
association with Grady Memorial Hospital and Emory University) that
combine features of NIHSS, as well as other major assessment scales used
by EMS providers, including FAST, VAN, RACE and CPSS.
The responses are then used to evaluate symptoms and
summarize the patient’s condition with a numerical score. The score is
accompanied by other useful information, such as the probability of
severe outcomes.
Having one decision support engine that encompasses other
protocols makes it easier, faster and more feasible for EMS providers to
triage and identify various types of stroke in the ambulance, including
sLAVO, so providers can make more consistent, data-driven decisions and
get the patient to the right kind of facility without delay.
REDUCING DELAYS IN TRANSPORT
When a patient’s condition has been assessed and a score
provided, the JoinTriage app will display a map showing the locations of
recommended medical centers best suited to treat the patient.
The crown jewel in the JoinTriage app
is its database that currently lists all hospitals and medical
facilities in the U.S., along with their certifications and
capabilities, filling a huge knowledge gap. ALLM is expanding this
database to include urgent care centers, primary care offices, nursing
homes and other alternative destinations that may be available to EMS
providers under the Emergency Triage, Treat and Transport Model .
The app is also configurable to the requirements of the
jurisdiction, so you don’t need to worry about going afoul of local or
regional rules, protocols, and restrictions.
COMPLETE THE CONTINUUM OF CARE
In addition to putting a more powerful stroke assessment
tool in the hands of EMS providers, JoinTriage also helps them
communicate with and coordinate resources at the destination hospital.
By integrating with Join ,
ALLM’s communication app for hospitals, JoinTriage enables EMS
providers to share patient information with the destination hospital via
Join chat, giving medical teams at the destination sufficient time to
prepare for optimal treatment. They can even do tele-EMS consults while
the patient is enroute to the hospital. Further, EMS crew can benefit by
receiving the real-time feedback from clinicians directly, thus EMS
agencies becoming learning organizations with continual improvement.
A recent study conducted in Vermont, published in The American Journal of Emergency Medicine, shows that the stroke assessment scale, FAST-ED, using JoinTriage in the field is statistically comparable to FAST-ED done in the ER .
The study also highlights the significance of JoinTriage used by EMS
when integrated with the Join app at the hospital level can improve the
standard of stroke care, including effective pre-notifications.
“Patient-centered quick and appropriate care is paramount
in emergency situations,” said Harry Reddy, chief executive officer of
ALLM. “We’re excited to see the innovative and clinically-proven
JoinTriage/Join app suite helping transform EMS care for the benefit of
patients and providers at point of care and communities at large.”
In the race against time, EMS providers have a new advantage – JoinTriage.
JoinTriage currently has over 35,000 registered users. It is free to EMS providers and available for both iOS and Android devices.
For more information, visit ALLM .
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