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Prehospital Trauma Care:Rethinking Traumatic Cardiac Arrest in Austin!Mark E. Escott, MD, MPH, FACEP, FAEMS, NRP
Medical Director
City of Austin-Travis County EMS System
May 31, 2018
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What’s Your Plan??
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Why bother??
• Survival rates: 0.77%-1.5%
• Some studies have recommended asystole as a contraindication in PTCA resuscitation
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Should ALS be initiated??
• Journal of Acute Care Surgery 2013
• Retrospective cohort study 2006-2009
• Evaluated survival rates in Post-Traumatic Circulatory Arrest
Leis CC, et al. Traumatic Cardiac Arrest: Should Advance Life Support Be Initiated? J Trauma Acute Care Surg. 2013 Feb;74(2):634-8.
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Should ALS be initiated??
• BLS and ALS units dispatched for TCA + EMS Supervisor
• ALS includes:
• Intubation
• IV fluids
• Medication administration
• POC Ultrasound
• POC lab testing
• Chest tube
• Pericardiocentesis
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40%
16%
17%
27%
Mechanism of Arrest
MVC
Assault, Stab, GSW
Fall from Height
Other
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• 49.1% ROSC
• 6.6% CNR
• Children: 23% survival
• Adults: 5.7% survival
• Elderly: 3.7% survival
TCA
167 patients
ROSC
82 patients
CNR
11 Patients
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How much time do you have?
• Mean response time for survivors: 6.9 min
• Mean response time for non-survivors: 9.2 min
• AFTER 10 MINUTES from the time of the initial incident: zero survivors
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What difference does the rhythm make?
ROSC
•VF: 90.9%
•PEA: 60.5%
•Asystole:40.2%
CNR
•VF: 36.4%
•PEA: 7%
•Asystole: 2.7%
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Fluid Resuscitation
ROSC
• Patients with ROSC received significantly more fluids
• 1,888ml crystalloids vs. 890ml
• 488ml colloids vs. 184ml
CNR
• No significant difference in fluid amounts given in those who achieved CNR
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•Pit Crew CPR for Trauma
•POC Ultrasound + PCT
•Whole Blood
•REBOA? *EMS Physician Only
• Simple (Finger) Thoracostomy
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•Pit Crew CPR for Trauma
•POC Ultrasound + PCT
•Whole Blood
•REBOA? *EMS Physician Only*
• Simple (Finger) Thoracostomy
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Needle Thoracostomy
• 3.2-4.5 cm catheter• Estimated Failure
rate 50-65%
• 5 cm catheter• Estimated Failure
rate 42.5%
Stevens RL, Rochester AA, Busko J, et al. Needle thoracostomy for tension pneumothorax: Failure predicted by chest computed tomography. Prehosp Emerg Care. 2009;13(1):14–17.Ball CG, Wyrzykowski AD, Kirkpartick AW, et al. Thoracic needle decompression for tension pneumothorax: Clinical correlation with catheter length. Can J Surg. 2010;53(3):184–188. Inaba K, Ives C, McClure K, et al. Radiologic evaluation of alternate sites for needle decompression of tension pneumothorax. Arch Surg. 2012;147(9):813–818.
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Simple Thoracostomy
in 1991 Delooz stated that ‘if the highest expertise is involved on the scene, pre hospital care will not cause delay; on the contrary, it will result in earlier definitive care, limitation of oxygen debt and transfer to the most appropriate trauma care facility”.
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Simple Thoracostomy
Italy
- 55 patients
- No complications
UK (London HEMS)
- 4/17 ROSC
- No complications
- No survivors
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The MCHD EMS Experience
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Training
• Didactic presentation
• Part-task Trainers
• Live Tissue Lab
• PHYSICIAN EDUCATORS!
• REGULAR RETRAINING!!
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Indications
Traumatic cardiac arrest with known or suspected injury to the chest and/or abdomen
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Contraindications
Any patient that has cardiac output, including hypotensive patients.
Last known alive > 10 minutes.
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Simple Thoracostomy
4th or 5th intercostal space midaxillary line
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Simple Thoracostomy Procedure
Utilize blunt dissection with finger or forceps to get through the intercostals.
Grasp Kelly forceps at curve to maintain control.
Pierce through the pleura with forceps, expand forceps.
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Simple Thoracostomy Procedure
Insert finger into pleural cavity, ensure lung is palpated and expanded or expands.
If possible, feel caudally for the diaphragm.
Allow the soft tissues to fall back over the wound, this will act as a flap valve.
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Mechanism
28%
72%
Mechanism of TCA
Penetrating
Non-penetrating
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Rhythm on Arrival
66%
21%
6%7%
Initial Rhythm
PEA
Asystole
VF/VT
Missing data
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The MCHD Experience
46 Patients12 ROSC
(26%)
5 Survival 24hr
(11%)
3 Survival to DC with CNR
(6.5%)
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Why Bother??
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References
• Simple Thoracostomy Avoids Chest Drain Insertion in Prehospital Trauma; Journal of Trauma; 1996, 39(2): 373-374.
• Simple Thoracostomy in Prehospital Trauma Management is Safe and Effective: A 2 year Experience by Helicopter Emergency Medical Crews; European Journal of Emergency Medicine; 2006, 13:276-280.
• Prehospital Thoracostomy; European Journal of Emergency Medicine; 2008, 15:283-285.
• Chest Decompression During the Resuscitation of Patients in Prehospital Traumatic Cardiac Arrest; Emergency Medicine Journal; 2009, 26(10):738-740.
• Life Saving or Life Threatening? Prehospital Thoracostomy for Thoracic Trauma; Emergency Medicine Journal; 2007, 24:305-306.
• Prehospital Management of Patients with Severe Thoracic Injury: Injury; 1995, 26(9):581-585
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