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Episode 915: Severe Burn Injuries

Emergency Medical Minute

Release Date: 08/05/2024

Episode 925: Table Sugar for Tongue Entrapment show art Episode 925: Table Sugar for Tongue Entrapment

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Pediatric case study where the child’s tongue was stuck in the opening of a hard plastic drink lid Entrapment restricts circulation which causes fluid to build and the tongue becomes more edematous with time There is a risk of ischemia with prolonged entrapment Initially tried 2% viscous lidocaine for analgesia and lubricant The ER recognized that this mucosal, edematous tongue could benefit from the trick for ostomies and rectal prolapses → table sugar! Sugar granules absorb water which decreases tissue edema This option...

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Episode 924: Pregnancy Cold Remedies show art Episode 924: Pregnancy Cold Remedies

Emergency Medical Minute

Contributor: Megan Hurley, MD Educational Pearls: Fevers Tylenol Up until 20 weeks NSAIDs are ok but after 20 weeks they are contraindicated Can limit the amount of amniotic fluid produced Can lead to growth restriction Can cause premature closure of the ductus arteriosus Cough Cough drops Humidifier Guafenesine and dextromethorphan (Mucinex) is not well studied but is probably ok with caution in certain circumstances such as post-tussive emesis causing poor PO intake and weight loss Congestion Flonase (Fluticasone nasal spray) Nasal rinses Humidifier 1st...

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Episode 923: Blunt Cerebrovascular Injury show art Episode 923: Blunt Cerebrovascular Injury

Emergency Medical Minute

Contributor: Travis Barlock MD Educational Pearls: Assessment of head and neck vascular injury due to blunt trauma Symptomatic patients require screening head and neck CT angiography EAST guidelines include the following criteria for a screening CT angiography in blunt head trauma: Unexplained neurological deficits Arterial nosebleed GCS < 6 Petrous bone fracture Cervical spine fracture Any size fracture through the transverse foramen LeFort fractures type II or type III EAST guidelines include a grading scale for vascular injury: Grade I: Luminal irregularity...

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Episode 922: Chest Tube Irrigation show art Episode 922: Chest Tube Irrigation

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: Hemothorax: blood in the pleural cavity, most commonly due to chest trauma Treatment: thoracostomy tube for blood drainage helps to avoid clotting, scarring, and infection A recent study looked at patients with hemothorax who either received or did not receive thoracic irrigation with saline Evaluated incidence of secondary intervention, such as video-assisted thoracoscopic surgery (VATS), for persistent hemothorax Patients who received irrigation had a slight decrease in secondary intervention frequency Multi-center study -...

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Episode 921: Pediatric Hypoglycemia show art Episode 921: Pediatric Hypoglycemia

Emergency Medical Minute

Contributor: Taylor Lynch, MD Educational Pearls: When it comes to hypoglycemia, the age dictates possible causes Neonate: Hormonal deficiency Congenital Adrenal Hyperplasia (21-hydroxylase deficiency, 11β-hydroxylase deficiency) Primary or Secondary Adrenal Insufficiency leading to cortisol deficiency  Hypopituitarism Inborn errors of metabolism Systemic infection (Under 30 days old should trigger a full infectious workup) Toddler Accidental ingestions Sulfonylureas such as glipizide or glyburide Older children Addison’s Disease (Hypocortisolism) ...

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Laboring Under Pressure Episode 3: Hypertensive Disorders of Pregnancy with Dr. Kiersten Williams show art Laboring Under Pressure Episode 3: Hypertensive Disorders of Pregnancy with Dr. Kiersten Williams

Emergency Medical Minute

Contributor: Kiersten Williams MD, Travis Barlock MD, Jeffrey Olson MS3 Show Pearls Hypertensive disorders of pregnancy are one of the leading causes of maternal mortality worldwide. Hypertension (HTN) complicates 2-8% of pregnancies The definition of HTN in pregnancy is a systolic >140 or diastolic >90, measured 4 hours apart There is a range of HTN disorders Chronic HTN which could have superimposed preeclampsia (preE) on top Gestational HTN in which there are no lab abnormalities PreE w/o severe features Protein in urine Urine protein >300 mg in 24 hours Urine...

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Episode 920: Pediatric Growth Estimates show art Episode 920: Pediatric Growth Estimates

Emergency Medical Minute

Contributor: Sean Fox, MD Educational Pearls: Newborns may lose up to 10% of their birth weight in the first week of life Weight loss is greatest in exclusively breastfed infants Should regain birth weight by age 2 weeks Newborns should gain an average of 30g (1 oz) per day in the first 3 months of life Some will gain more and some will gain less Infants double their birth weight by 6 months of life and triple their weight by 12 months A 1-year-old should weigh on average 10 kg (22 lbs) A 3-year-old should weigh on average 15 kg (33 lbs) 2-year-olds are between 10-15 kg...

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Episode 919: EKG Criteria for Adenosine show art Episode 919: EKG Criteria for Adenosine

Emergency Medical Minute

Contributor: Travis Barlock, MD Educational Pearls: SVT: supraventricular tachycardia Pharmacotherapy for SVT includes drugs that block the AV node, such as adenosine EKG criteria before adenosine administration in SVT Regular rhythm Monomorphic: ​​all QRS complexes are identical If the EKG is polymorphic, with QRS complexes displaying changing morphologies, it is unsafe to administer adenosine  Adenosine can worsen polymorphic VTach and lead to VFib References Ganz, Leonard I., and Peter L. Friedman. “Supraventricular Tachycardia.” New England Journal of...

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Episode 918: Automated Blood Pressure Cuffs show art Episode 918: Automated Blood Pressure Cuffs

Emergency Medical Minute

Contributor: Aaron Lessen, MD Educational Pearls: How does an automated blood pressure cuff work? Automated blood pressure cuffs work differently than taking a manual blood pressure. While taking a manual blood pressure, one typically listens for Korotkoff sounds (turbulent flow) while slowly deflating the cuff. An automatic blood pressure cuff only senses the pressure in the cuff itself and specifically pays attention to oscillations in the pressure caused by when the pressure of the cuff is between the systolic (heart squeezing) and diastolic (heart relaxed) pressures. These...

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Episode 917: Heat-Related Illnesses show art Episode 917: Heat-Related Illnesses

Emergency Medical Minute

Contributor: Megan Hurley, MD Educational Pearls:  Heat cramps Occur due to electrolyte disturbances Most common electrolyte abnormalities are hyponatremia and hypokalemia Heat edema Caused by vasodilation with pooling of interstitial fluid in the extremities Heat rash (miliaria) Common in newborns and elderly Due to accumulation of sweat beneath eccrine ducts Heat syncope Lightheadedness, hypotension, and/or syncope in patients with peripheral vasodilation due to heat exposure Treatment is removal from the heat source and rehydration (IV fluids or Gatorade) ...

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Contributor: Megan Hurley, MD

Educational Pearls:

  • Initial assessment of patients with severe burn injuries begins with ABCs 

    • Airway: consider inhalation injury

    • Breathing: circumferential burns of the trunk region can reduce respiratory muscle movement

    • Circulation: circumferential burns compromise circulation

    • Exposure: Important to assess the affected surface area

  • Escharotomy: emergency procedure to release the tourniquet-ing effects of the eschar 

    • Differs from a fasciotomy in that it does not breach the deep fascial layer

  • PEEP = positive end-expiratory pressure

    • The positive pressure remaining in the airway after exhalation

    • Keeps airway pressure higher than atmospheric pressure

  • Common formulas for initial fluid rate in burn shock resuscitation

    • Parkland formula: 4 mL/kg body weight/% TBSA burns (lactated Ringer's solution)

    • Modified Brooke formula: 2 mL/kg/% (also lactated Ringer's solution)

      • Less fluid = lower risk of intra-abdominal compartment syndrome

  • Lactated Ringer’s solution is preferred over normal saline in burn injuries

    • Normal saline is avoided in large quantities due to the possibility of it leading to hyperchloremic acidosis

References

  1. Acosta P, Santisbon E, Varon J. “The Use of Positive End-Expiratory Pressure in Mechanical Ventilation.” Critical Care Clinics. 2007;23(2):251-261. doi:10.1016/j.ccc.2006.12.012 

  2. Orgill DP, Piccolo N. Escharotomy and decompressive therapies in burns. J Burn Care Res. 2009;30(5):759-768. doi:10.1097/BCR.0b013e3181b47cd3 

  3. Snell JA, Loh NH, Mahambrey T, Shokrollahi K. Clinical review: the critical care management of the burn patient. Crit Care. 2013;17(5):241. Published 2013 Oct 7. doi:10.1186/cc12706

Summarized by Meg Joyce, MS1 | Edited by Meg Joyce & Jorge Chalit

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