Emergency Medical Minute
Contributor: Peter Bakes, MD Educational Pearls: When intubating a patient, it is important to consider what medications will be used for post-intubation sedation and analgesia The common non-benzodiazepine sedating medications are propofol, precedex, and ketamine Propofol is frequently used in the emergency department, and it lowers ICP and MAP making it the preferred sedative for patients with intracranial bleeds Precedex is a milder sedative used in the ICU because it decreases time to extubation and reduces the risk of complications associated with long term intubation Ketamine...
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Contributor: Jarod Scott, MD Educational Pearls: Rectal prolapse is an evagination of the rectal tissue through the anal opening Factors that weaken the pelvic floor muscles increase the risk of rectal prolapse These include age > 40, female, multiple pregnancies, constipation, diarrhea, cystic fibrosis, prior pelvic floor surgeries, or other pelvic floor abnormalities Noninvasive treatment options include increasing fluid and fiber intake to soften stools as well as using padding/taping to reinforce the perineum Surgery is an option to repair the prolapse so long as the patient is a...
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Contributor: Aaron Lessen, MD Educational Pearls: Hyperglycemic Hyperosmolar State (HHS) is less common than Diabetic Ketoacidosis (DKA) but is associated with a mortality rate up to 10 times greater than that seen in DKA Typically seen in elderly patients with severely elevated blood glucose levels (>1000 mg/dL) and an increased plasma osmolality Unlike in DKA, patients with HHS do not have elevated ketones Treatment of HHS includes insulin administration along with correcting fluid and electrolyte abnormalities When treating HHS, it is important to monitor and follow osmolality...
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The Emergency Medical Minute is excited to announce that we our upcoming event, Palliative. Check out our event page for more information and to buy tickets: Palliative Eventbrite Page
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Contributor: Aaron Lessen, MD Educational Pearls: NSAIDs are a potential alternative to opioids for pain management and are associated with decreased rates of adverse effects A recent study evaluated the effectiveness of ibuprofen and oxycodone for pain management in pediatric patients with isolated, acute-limb fractures Participants were discharged home with either ibuprofen or oxycodone and followed for six weeks There was no difference in pain scores between those taking ibuprofen and those taking oxycodone indicating that they had comparable analgesic effects Those in the ibuprofen...
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Contributor: Aaron Lessen, MD Educational Pearls: Direct Oral Anticoagulants (DOACs) have surpassed Warfarin and Lovenox® for anticoagulation as they do not require injection and allow for easier discharge. In the ED, they are commonly prescribed after PE or DVT diagnosis. Common DOACs are Apixaban (Eliquis®) and Rivaroxaban (Xarelto®). There has not been a direct head to head study comparing outcomes. 2 large observational studies evaluated the recurrence of clots and bleeding risk in patients with newly prescribed Eliquis® or Xarelto® for DVT or PE. Both studies found...
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Substance-Induced Psychosis (Part I) In this first episode of a two-part mini-series, we feature Dr. Nadia Haddad, a Colorado psychiatrist, and Dr. Ricky Dhaliwal, an emergency medicine physician, as they discuss the different substances that cause psychosis and their unique presentations in the ED and in the psychiatric world. First, Dr. Haddad establishes a medical definition of psychosis. Then, Dr. Haddad and Dr. Dhaliwal partake in a fruitful discussion, each providing their unique perspective on the drugs that affect our patient populations today. Key Points: ...
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Contributor: Aaron Lessen, MD Educational Pearls: Tracheostomy bleeding is a rare but potentially life-threatening complication that usually occurs within the first month of tracheostomy tube placement No matter how severe the bleeding, every patient should be evaluated to rule out a tracheo-innominate fistula between the tracheostomy and the innominate artery If the patient is currently bleeding and has a cuffed tracheostomy tube, over-inflate the balloon to compress the bleeding vessel Consider replacing an uncuffed tracheostomy tube with a cuffed tube or an ET tube If the tracheostomy was...
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Contributor: Nick Hatch, MD Educational Pearls: Transcatheter aortic valve replacement (TAVR) is an increasingly common endovascular procedure to treat aortic stenosis TAVR is an alternative to the open approach surgical aortic valve replacement (SAVR) for patients who are inoperable or are high risk surgical candidates Following TAVR, there is increased risk of stroke, particularly in the first 30 days TAVR-related strokes are due to embolic debris left on the valve root, which is generally cleaned out during SAVR Further, following the procedure many patients are anticoagulated which...
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Contributor: Nick Hatch, MD Educational Pearls: “Smiling Death” describes the prehospital phenomenon of a person who is happy to be extricated from an extended period of crush injury, but dies suddenly soon after the rescue. Smiling Death is caused by Crush Syndrome. Crush Syndrome begins when large areas of tissue are damaged by compression and subsequent impeded blood flow. Resultant cell death is followed by release of myoglobin and efflux of electrolytes including potassium. Upon removal of the crushing force, high levels of potassium enter circulation and cause cardiac...
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Educational Pearls:
- Acute hyperkalemia is characterized as serum K of 5.4 or higher in non-hemolyzed samples
- Hyperkalemia is commonly associated with end stage renal disease, acute kidney injury or acute renal failure
- Cardiac dysrhythmias are the primary concern with hyperkalemia, common EKG changes (and approximate serum levels) can include:
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- Peaked T waves that start to show at serum K of 6
- Second sign is lengthening of PR and QRS intervals due to extended repolarization
- Severe hyperkalemia manifests as a sine wave around serum of 8-9
- Three approaches to treat hyperkalemia:
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- Stabilize cardiac membrane with calcium
- Shift potassium back into the cell, insulin and albuterol are common agents used.
- Potassium binding for excretion
- Cochrane review showed no significant effects of Kayexalate on serum K in 4 hours
- Bowel necrosis is a rare adverse event that can occur with Kayexalate
- More myths and misconceptions about hyperkalemia addressed in reference below!
References:
Gupta AA, Self M, Mueller M, Wardi G, Tainter C. Dispelling myths and misconceptions about the treatment of acute hyperkalemia. Am J Emerg Med. 2022;52:85-91. doi:10.1016/j.ajem.2021.11.030
Mahoney BA, Smith WA, Lo DS, Tsoi K, Tonelli M, Clase CM. Emergency interventions for hyperkalaemia. Cochrane Database Syst Rev. 2005;2005(2):CD003235. Published 2005 Apr 18. doi:10.1002/14651858.CD003235.pub2
Li T, Vijayan A. Insulin for the treatment of hyperkalemia: a double-edged sword?. Clin Kidney J. 2014;7(3):239-241. doi:10.1093/ckj/sfu049
Summarized by Mason Tuttle| Edited by Nick Tsipis, MD