UMEM Educational Pearls - By Robert Flint

This study looked at survival pre and post implementation of an airway guideline for prehospital traumatic brain injury (TBI) patients who received positive pressure airway interventions.  The guideline “focused on the avoidance and aggressive treatment of hypotension and 3 airway-related goals: (1) prevention or treatment of hypoxia through early, high-flow oxygen administration; (2) airway interventions to optimize oxygenation or ventilation when high-flow oxygen was insufficient; and (3) prevention of hyperventilation or hypocapnia by using ventilation adjuncts (ie, rate timers, flow-controlled ventilation bags, end-tidal carbon dioxide monitoring).”

Post implementation, survival to admission increased in all severity levels of TBI and in the most severely injured, survival to discharge improved. 

Useful for those involved in prehospital education and as a reminder for in hospital airway management  in TBI patients.

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Category: Trauma

Title: Is a systolic blood pressure of 90 the best measure of illness in trauma patients?

Keywords: Trauma, blood pressure, shock index, predictor, mortality (PubMed Search)

Posted: 4/8/2024 by Robert Flint, MD
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Traditionally, a systolic blood  pressure (SBP) of 90 has been used as a marker of severe illness in trauma patients. This study looked at a large database and found shock index (SI) and systolic blood pressure were the best predictors of early mortality in trauma patients. 
They found: 

prehospital SI 0.9 and SBP 110,

ED SI 0.9 and SBP 112,

and

in elderly 

prehospital SI 0.8 SBP 116 

ED SI 0.8 SBP 121 

were the cutoffs to predict early mortality.  
We should rethink our protocols and approach to trauma patients using a higher systolic blood pressure than 90. Also note elderly had a different number than younger trauma patients.

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Category: Trauma

Title: No evidence to support use of markers for penetrating trauma radiographs

Keywords: Marker, penetrating trauma, radiopaque (PubMed Search)

Posted: 4/7/2024 by Robert Flint, MD (Updated: 4/19/2024)
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Using radiopaque markers such as paperclips to mark penetrating wounds prior to radiographs has been taught in trauma bays for decades. This article points out there is no evidence to support this practice and is purely based on expert opinion. With the heavy use of CT imaging to assess wound tracks, the use of markers on plain films appears to be of limited utility.

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This retrospective population cohort study looked at  first time ED visits for adolescents and young adults comparing those with visits related to alcohol to those not related to alcohol. Patients in the alcohol related visit group had  a threefold increased one year mortality rate.  Cause of death was trauma, poisoning by drug and alcohol. Risk factors include being male, age 20-29, history of mental health and having a visit for withdrawal.  

Adolescents and young adults presenting to an emergency department for an alcohol related complaint are high risk for one year mortality and deserve intervention and appropriate referral.

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Category: Trauma

Title: A benzodiazepine sparing protocol for alcohol withdrawal in trauma patients

Keywords: Alcohol, withdrawal, trauma, protocol, sparing (PubMed Search)

Posted: 3/24/2024 by Robert Flint, MD (Updated: 4/19/2024)
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This study compared  admitted trauma patients with alcohol withdrawal or those at risk of withdrawal before and after a  benzodiazepine sparing protocol (using clonidine and gabapentin) was initiated. They found a lower daily CIWA score and significantly less lorazepam use in the benzodiazepines sparing group. This sparing protocol appears to be safe and effective.

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Category: Trauma

Title: Use of hospice for discharge in geriatric trauma patients

Keywords: Geriatric trauma, outcome, hospice (PubMed Search)

Posted: 3/17/2024 by Robert Flint, MD (Updated: 4/19/2024)
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This was a database study of nearly 2 million trauma patients over age 65 who were discharged looking at all levels of trauma centers. The authors found:

“Dominance analysis showed that proportion of patients with Injury Severity Score of >15 contributed most to explaining hospice utilization rates (3.2%) followed by trauma center level (2.3%), proportion White(1.9%), proportion female (1.5%), and urban/rural setting (1.4%).”

 Level one centers had the lowest level of discharge to hospice. The authors felt: “As the population ages, accurate assessment of geriatric trauma outcomes becomes more critical. Further studies are needed to evaluate the optimal utilization of hospice in end-of-life decision making for geriatric trauma.”

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This secondary analysis of the NEXUS head injury data found patients over 65:

-sustained more significant injuries than younger pts

-presented more frequently with occult injuries

-when they required neurosurgery intervention only 16% went home, 32% were discharged to rehab facility and 41%  died

-mechanism of injury was most commonly fall from standing

-mortality rates were highest for fall from ladder and auto vs. pedestrian injuries

The authors concluded: “Older blunt head injury patients are at high risk of sustaining serious intracranial injuries even with low-risk mechanisms of injury, such as ground-level falls. Clinical evaluation is unreliable and frequently fails to identify patients with significant injuries. Outcomes, particularly after intervention, can be poor, with high rates of long-term disability and mortality.”

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This is a retrospective study looking at traumatic brain injury patients comparing those with and without  pre-existing psychiatric illness at the time of injury. Those with pre-existing illness had longer hospital stays, longer ICU stays and more frequent readmissions.

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This meta analysis did not find convincing evidence for or against seizure prophylaxis for admitted moderate to severe traumatic brain injury pts. They recommend Levetiracetam over other medications again on weak evidence.

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Category: Trauma

Title: Geriatric Hip fractures: when is a low hgb detrimental.

Keywords: Hip fracture l, hemoglobin l, mortality (PubMed Search)

Posted: 2/25/2024 by Robert Flint, MD (Updated: 4/19/2024)
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In this study, geriatric hip fracture patients with a hemoglobin less than 7.1 had higher mortality, especially in those over age 79, even when controlling for other factors such as ASA Physical status class, anti-platelet use, etc.

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This research letter notes: “The Rural Emergency Hospital is a new Medicare payment model available to hospitals with 50 or fewer beds in rural areas. Rural hospitals converting to this model will have emergency department (ED), observation, and outpatient services.”. Their study concludes that the majority of these hospitals already transfer the vast majority of their admissions to larger hospitals and this designation is a recognition of already established practices.

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Category: Trauma

Title: Do prehospital applied pelvic binders impact mortality?

Keywords: Pelvic binder, trauma, survival, mortality (PubMed Search)

Posted: 2/18/2024 by Robert Flint, MD (Updated: 4/19/2024)
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This retrospective study of 66 trauma patients who had pelvic fractures attempted to determine if prehospital applied pelvic binders had an impact on mortality. There were 3 cohorts: appropriately applied binders (14), inappropriately applied (14 not at the level of the greater trochanter), and none applied (38).  Survival for applied was 92% and those without was 81% which was not statistically significant.  The authors concluded: “In conclusion, our study found that the use of prehospital pelvic binders did not show a significant effect on patient outcomes for those with unstable pelvic fractures. Instead, injury severity score (ISS) emerged as the most significant predictor of survival.”

Previous studies have shown regular education is needed on proper use of binders.  We should continue to educate on appropriate positioning and the use of pelvic binders. For me, this study is not large enough to convince that we should go away from binder use. We need more data before we abandon the pelvic binder.

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Category: Administration

Title: Transfer of emergency general surgery cases

Keywords: Transfer, surgery, scoping review, further research (PubMed Search)

Posted: 1/28/2024 by Robert Flint, MD (Emailed: 2/11/2024) (Updated: 2/11/2024)
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These authors performed a scoping review of English language studies involving United States general surgery patients that required transfer to another facility looking at timing of transfer, triage guidelines, and mode of transport . They concluded: “There were mixed results for the impact of transfer timing on outcomes with heterogeneous definitions of delay and populations. Triage guidelines for EGS transfer were consensus or expert opinion. No studies were identified addressing the mode of interfacility EGS transfer.”  More research is needed in the area concerning timing, triage and mode of transport for these patients.

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Category: Trauma

Title: CT for uncertain head injury in geriatric patients

Keywords: Ct, head injury, geriatric (PubMed Search)

Posted: 1/28/2024 by Robert Flint, MD (Emailed: 2/4/2024) (Updated: 2/4/2024)
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In this prospective study looking at geriatric patients with unknown head injury vs. known head injury, the unknown head injury group had an ICH 1.5%, neurosurgical intervention 0.3% and delayed ICH 0.1% when compared to known head injury (10.5%,  1.2% and 0.7% respectively).  The authors concluded that the risk of ICH was high enough in uncertain head injury patients to warrant scanning.

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Category: Trauma

Title: Can the surprise question predict 1 year mortality in trauma patients?

Keywords: Prediction, surprise question, trauma, mortality (PubMed Search)

Posted: 1/28/2024 by Robert Flint, MD (Updated: 4/19/2024)
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The question “Would I be surprised if the patient died within the next year”  has been validated as a tool to predict patients with a limited life expectancy. This study looked at trauma team members’ ability to use this question to predict one year mortality. Trauma team members over estimated mortality in this study.

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Category: Administration

Title: Conditions associated with diagnostic error

Keywords: Risk, diagnostic error (PubMed Search)

Posted: 1/21/2024 by Robert Flint, MD (Updated: 4/19/2024)
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From the Canadian Medical Protective Association looking at  5 years of closed medical legal cases.  This fits with previous risk management data and should give us pause when treating these conditions.

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Category: Trauma

Title: Delirium and Trauma

Keywords: elder, Trauma, delirium, confusion (PubMed Search)

Posted: 1/14/2024 by Robert Flint, MD (Updated: 4/19/2024)
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Imagine lying in a bed staring at the ceiling and these fuzzy faces looking down on you clearly saying something to you but you can't hear them while your hip and pelvis are hurting worse than anything you have ever felt. That's what many of our fall from standing elderly patients experience in emergency departments on a regular basis. Do not remove glasses or hearing aides from your elderly patients. Work with our EMS colleagues to make it a practice to bring glasses and hearing aides along from the scene.  Speak slowly and get close to their ear to help if necessary. That confusion, delirium or dementia you assume this patient has is actually just hearing impairment and poor vision.



Category: Trauma

Title: Age is just a number

Posted: 1/7/2024 by Robert Flint, MD (Updated: 4/19/2024)
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Approaching patients based on their frailty, not their age, leads to better medical decision making. A recent best practice guideline from the American College of Surgeons sums up frailty: 
“It is well recognized that aging is associated with physiological decline, but this decline is not uniform across all individuals or even across one individual’s organ systems. Frailty is a geriatric syndrome, clinically distinct from age, comorbidity, and functional disability, characterized by age- associated depletion of physiological reserves that leads
to a state of augmented vulnerability to physical stressors and a diminished ability to recover from illnesses.” A trauma specific frailty  index exists to identify these high risk patients.

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Since 2014, Medicare has payed for inpatient services for Medicare patients who’s admitting physician noted that hospital stay required at least 48 hours (measured as 2 midnights) or required specialty care that could not be performed as an out patient.  This rule now will apply to Medicare Advantage insurance patients as well. Physicians will need to document their reasoning why a patient’s stay will likely require two midnights.

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Category: Administration

Title: Personal growth, not goal setting

Keywords: Personal growth. (PubMed Search)

Posted: 12/31/2023 by Robert Flint, MD (Updated: 4/19/2024)
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As the calendar flips to a new year, consider not setting goals or resolutions. Studies show unmet goals or having too many half finished projects leads to increased stress, anxiety and depression. Instead, consider approaching the new year looking for growth, introspection, and  striving to achieve excellence.  Understanding the why and what motivates you will lead to the correct what and how. Here are some questions to get you thinking about the why.  May your New Year be filled with growth and excellence!