Category: Pharmacology & Therapeutics
Keywords: Pulmonary embolism, heparin, low-molecular-weight heparin, LMWH (PubMed Search)
Posted: 3/12/2026 by Ashley Martinelli
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The 2026 Acute Pulmonary Embolism Guidelines were recently released. They recommend low-molecular-weight heparin (LMWH) over heparin for hospitalized patients with acute PE who require initial parenteral therapy unless they are in Category E2 Acute PE Cardiopulmonary Failure (level 1B-R).
Top benefits include:
Category: Gastrointestional
Keywords: upper GI bleeding, antibiotics (PubMed Search)
Posted: 3/11/2026 by Neeraja Murali, DO, MPH
Click here to contact Neeraja Murali, DO, MPH
JAMA Internal Medicine recently published a systematic review and Bayesian meta-analysis looking at the utility of prophylactic antibiotics in cirrhotics with acute upper GI bleeding
TLDR: shorter durations of antibiotics (including no antibiotics!) had a 97.3% probability of noninferiority for all-cause mortality
This meta-analysis and systematic review explored the practice of giving prophylactic antibiotics to patients with cirrhosis and upper GI bleeding, which is strongly recommended in the current guidelines.
14 RCTs were included in the analysis, with 1322 patients. Authors compared 1) any prophylaxis vs none; and 2) 5-7 duration vs 2-3 duration of third generation cephalosporins.
-Shorter durations (including 0 days) had a 97.3% probability of noninferiority for all-cause mortality (RD 0.9%, 95%CrI -2.6 to 4.9). -
Secondary outcomes:
-Shorter durations had a 73.8% probability (RD 2.9%, 95%CrI -4.2 to 10) of noninferiority for early rebleeding (with substantial heterogenetity and low certainty of evidence)
-Shorter durations (especially 0 days) were associated with more study-defined infections (RD 15.2%, 95%CrI 5.0 to 25.9), probability not given.
Conclusions:
The authors argue that existing evidency does not support a mortality benefit from 5-7 days of antibiotic prophylaxis, and they further point out that the current guidelines are not based on high-quality evidence. They suggest that shorter or no prophylaxis may be reasonable, but admit that high-quality, large, double-blinded RCTs could help support this conclusion.
Fun Fact:
Annals also did a systematic review snapshot of this article: Arbab Z, Long B, Gottlieb M. Do Prophylactic Antibiotics Improve Outcomes in Patients With Cirrhosis and Upper Gastrointestinal Bleeding?. Ann Emerg Med. Published online December 9, 2025. doi:10.1016/j.annemergmed.2025.10.019
Prosty C, Noutsios D, Dubé LR, et al. Prophylactic Antibiotics for Upper Gastrointestinal Bleeding in Patients With Cirrhosis: A Systematic Review and Bayesian Meta-Analysis. JAMA Intern Med. 2025;185(10):1194-1203. doi:10.1001/jamainternmed.2025.3832
Arbab Z, Long B, Gottlieb M. Do Prophylactic Antibiotics Improve Outcomes in Patients With Cirrhosis and Upper Gastrointestinal Bleeding?. Ann Emerg Med. Published online December 9, 2025. doi:10.1016/j.annemergmed.2025.10.019
Category: Obstetrics & Gynecology
Posted: 3/4/2026 by Jennifer Wang, MD
(Updated: 3/9/2026)
Click here to contact Jennifer Wang, MD
Bottom Line: We are terrible at estimating how much blood people are losing just by looking at it. Use calibrated drapes (drapes with markings that tell you how much blood is being lost), or just a large bag and then weigh it afterwards (1g ~ 1ml of blood loss).
In 2025, Yunas et. al did a systematic review to look at how we evaluate blood loss in the postpartum period, defining postpartum hemorrhage (PPH) as >500ml and severe postpartum hemorrhage as >1000ml.
What they found was that visual estimation or relying on the provider's eyes was only 50% sensitive in identifying PPH and only 10% sensitive in identifying severe PPH, which means that we miss up to 90% of severe PPH when we just look at the blood.
Well, what do we do about that?
Per FIGO recommendations and the Yunas et. al study, gravimetric methods (or measuring everything that was soaked in blood and subtracting out the dry weight) are the most accurate, but they're very time-intensive, so an easier method is volumetric (having the patient bleed into a bag or bucket that has lines telling you how much volume of blood has been lost), especially calibrated drapes (pictured below). These are drapes designed for this purpose that can be placed under the patient. These are fairly cheap and should be in every ED as preparation for a precipitous delivery and potential PPH.
If your hospital doesn't have them and is unwilling to get them, you could use other large bags, such as trash bags, large patient belonging bags and weight these afterwards, subtracting the dry weight of the bag (1g ~ 1ml of blood).
Regardless of what you choose to do - DO NOT RELY ON YOUR EYES. THEY ARE NOT DEPENDABLE.

Begum F, Nieto-Calvache AJ, Schlembach D, et al. FIGO recommendations on objective measurement of blood loss after birth for early detection of postpartum hemorrhage. Int J Gynaecol Obstet. 2025;171(3):933-950. doi:10.1002/ijgo.70523
Yunas I, Gallos ID, Devall AJ, Podesek M, Allotey J, Takwoingi Y, Coomarasamy A. Tests for diagnosis of postpartum haemorrhage at vaginal birth. Cochrane Database Syst Rev. 2025 Jan 17;1(1):CD016134. doi: 10.1002/14651858.CD016134. PMID: 39821088; PMCID: PMC11740288.
Category: Infectious Disease
Keywords: vasculitis, IgA, drug induced (PubMed Search)
Posted: 3/8/2026 by Robert Flint, MD
(Updated: 3/12/2026)
Click here to contact Robert Flint, MD
This case report reminds us that vasculitis is an inflammatory process that attacks blood vessels leading to organ dysfunction. The etiology can be a hypersensitivity reaction (think drugs) or an IgA mediated process secondary to infection (Strep or Mycoplasma). In this case, concomitate use of NSAIDS (very common etiology of hypersensitivity) and Mycoplasma lead to vasculitis. Treatment ranges from supportive care, to steroids to immunosuppressive agents such as azathioprine.
Elaine Yu, Akousa Osei-Tutu, Rachna Subramony,
Small Vessel Vasculitis from Mycoplasma Infection and Concurrent Topical Nonsteroidal Anti-Inflammatory Drug (NSAID) Medication,
The Journal of Emergency Medicine,
Volume 82,
2026,
Pages 88-93,
ISSN 0736-4679,
https://doi.org/10.1016/j.jemermed.2025.12.003.
Category: Pharmacology & Therapeutics
Keywords: Drug reaction. (PubMed Search)
Posted: 3/5/2026 by Robert Flint, MD
(Updated: 3/12/2026)
Click here to contact Robert Flint, MD
Of 925 ED headache patients in this meta analysis comparing extrapyramidal side effects of bolus vs. continuous infusion of metoclopremide the majority of the reactions occurred in the bolus group.
Ryuta Onodera, Yusuke Ito, Takahiro Itaya, Yoshie Yamada, Taku Iwami, Yusuke Ogawa,
Extrapyramidal symptoms and effectiveness of continuous vs bolus intravenous metoclopramide: A systematic review and meta-analysis,
The American Journal of Emergency Medicine,
Volume 103,
2026,
Pages 36-44,
ISSN 0735-6757,
https://doi.org/10.1016/j.ajem.2026.01.051.
Category: Toxicology
Keywords: Kratom, Novel psychoactive substance, mitragyna (PubMed Search)
Posted: 3/4/2026 by Kathy Prybys, MD
Click here to contact Kathy Prybys, MD
Bottom Line:
Kratom is an herbal extract used as an alternative medicine and recreational substance with marked increase in use over recent years. Kratom contains a complex mixture of psychoactive ingredients with effects at multiple receptors (mu, serotonin, dopamine, and alpha-adrenergic receptors) and causes stimulant effects at lower doses and opioid effects at higher doses. Depending on the predominant clinical effects, treatment with naloxone, benzodiazepine, and labetalol have been reported.
Kratom is an herbal extract from the leaves of trees of the Mitragyna speciosa native to Southeast, containing a complex mixture of psychoactive ingredients with effects at multiple receptors (mu, serotonin, dopamine, and alpha-adrenergic). Clinical effects are dose dependent with stimulant effects seen at lower doses and opioid effects at higher doses. The two predominate alkaloid psychoactive ingredients (mitragynine and 7-hydroxymitragynine) have partial agonist effects at the mu opioid receptor with reported analgesic effect of the potency of codeine.
Use of kratom has increased markedly in recent years in both the US and European countries as a popular alternative medicine for treatment of pain, mood disorders, opioid withdrawal, and for recreational use.
Leaves are crushed and smoked, brewed, put into capsules, tablets, powder, or liquid extracts and are available from online, head shops, health food stores, and some gas stations. In the US, Kratom is not an FDA approved drug product thus not federally regulated. The FDA warns that there is no standard dose, products may be contaminated, and it is not thoroughly studied. Kratom products may be falsely disguised and sold as other products such as potpourri or incense.
In reported overdose cases, a mixture of opioid-like symptoms (depressed CNS) and sympathetic and serotonin syndromes (HTN, tachycardia, miosis, agitation, seizure) were reported and treated with naloxone, benzodiazepines, and labetalol. Urine drug screen will not detect Kratom.
A new concentrated product called 7-hyroxymitragynine (aka “7 hydroxy” or “7 OH”) is sold in pill form and is more potent that morphine and has led to respiratory depression requiring naloxone.
Mitragyna speciosa (Kratom) poisoning: Findings from ten cases. Peran, D, Stern, M, et al. Toxicon.2023. Vol 225. https://doi.org/10.1016/j.toxicon.
Deaths in Colorado Attributed to Kratom. Gersham K., Timm K., et al. New England Journal of Medicine. 2019. Vol 380 (1). 99-98. https://www.nejm.org/doi/full/10.1056/NEJMc1811055
Kratom exposures among older adults reported to U.S. poison centers, 2014-2019. Graves JM, Dilley JA, et al. J Am Geriatr Soc. 2021. Aug;69(8):2176-2184. doi: 10.1111/jgs.17326. Epub 2021 Jun 18. PMID: 34143890.
Kratom Use and Toxicities in the United States. Pharmacotherapy. Eggleston W, Stoppacher R, et al. 2019 Jul;39(7):775-777. doi: 10.1002/phar.2280. Epub 2019 Jun 13. PMID: 3109903
Additional Fatal Overdoses Tied to Synthetic Kratom in Los Angeles Countyhttp://publichealth.lacounty.gov/phcommon/public/media/mediapubhpdetail.cfm?prid=5156
Category: Trauma
Keywords: Ketamine, pain control, trauma (PubMed Search)
Posted: 3/1/2026 by Robert Flint, MD
(Updated: 3/12/2026)
Click here to contact Robert Flint, MD
When compared to saline(!) trauma patients with a high injury severity score who received ketamine via pca for pain control had better quality of life indicators at 1,3, and 6 months post injury.
Trevino, C. , Carver, T. , Tomas, C. , Larson, C. , Mantz-Wichman, M. , Peppard, W. & deRoon-Cassini, T. (2026). Acute traumatic pain treatment with ketamine decreased PTSD and anxiety symptoms 6 months post hospital discharge. Journal of Trauma and Acute Care Surgery, 100 (2), 215-220. doi: 10.1097/TA.0000000000004835.
Category: Orthopedics
Posted: 2/28/2026 by Brian Corwell, MD
Click here to contact Brian Corwell, MD
Rotational Injury to the Knee
The plain film shows a small, crescent shaped bone fragment adjacent to the lateral tibial plateau.
This fracture is called a Segond fracture
It represents a bony avulsion of the anterolateral ligament (ALL) NOT the ACL
However, this fracture pattern is associated with a tear of the ACL tear 75-100% of the time.
Also associated with meniscal injuries (65-75%)
The ALL runs from the lateral femoral condyle and inserts on the anterolateral proximal tibia near the fibular head
The ALL helps to control tibia internal rotation
Works in concert with the ACL to prevent anterior rotational tibia subluxation
This injury pattern on plain film indicates a significant ligament injury and changes management because ACL reconstruction is often required.
Category: Geriatrics
Keywords: Sepsis, geriatric, temperature (PubMed Search)
Posted: 2/26/2026 by Robert Flint, MD
(Updated: 3/12/2026)
Click here to contact Robert Flint, MD
Bottom Line: arrival temperature had no prognostic value in non-septic older patients. Hypothermia in sepsis, but not fever, predicted mortality.
Finn Erland Nielsen, Osama Bin Abdullah, Lana Chafranska, Thomas Andersen Schmidt, Rune Husås Sørensen,
Temperature at admission and mortality in older adults with infection: Limited prognostic value in non-sepsis cases,
The American Journal of Emergency Medicine,
Volume 103,
2026,
Pages 1-8,
ISSN 0735-6757,
https://doi.org/10.1016/j.ajem.2026.01.045.
Category: Administration
Posted: 2/19/2026 by Steve Schenkel, MD, MPP
(Updated: 2/25/2026)
Click here to contact Steve Schenkel, MD, MPP
BOTTOM LINE: ED Boarding is now publicly reported in one state (Connecticut). Public reporting of boarding data may encourage new approaches to remedy the problem.
Connecticut passed legislation in 2023 requiring hospitals to report boarding data annually. Numbers are now reported for 2024, complete with a map that shows the percentage of boarding in each hospital in the state. There is an additional page for patients or staff to report their own experiences regarding boarding.
For more information, see:
Category: Critical Care
Posted: 2/24/2026 by Mark Sutherland, MD
Click here to contact Mark Sutherland, MD
It is a common scenario in the ICU, and occasionally in the ED, to be asked which pressor you would like to wean first, norepinephrine or vasopressin. This is mostly an “art not science” question, but is there a right answer? Does picking one vs the other to wean first lead to less hypotension?
Bottom Line: This meta-analysis doesn't suggest that either the norepi-first or vasopressin-first strategies for vasopressor wean are associated with an increased incidence of hypotension, although the literature is mixed. Whatever your current practice is, it's probably reasonable to stick with that. See the additional information for my personal approach.
This meta-analysis looked at both observational studies and RCTs. Interestingly, the observational studies suggested, with statistical significance, that weaning norepi first was associated with more hypotension, but the RCTs suggested the opposite (that weaning norepi first was associated with less hypotension). When put together, the literature overall doesn't suggest a difference. It remains unclear whether it's better to wean the norepinerphine first or vasopressin first.
My personal practice is to:
Mallmann C, Silva LOJ, Oliveira MS, Galiotto TMB, Nedel WL, Moraes RB. Effect of norepinephrine versus vasopressin weaning on incidence of hypotension in septic shock patients: a systematic review and meta-analysis. Crit Care Sci. 2026 Feb 16;38:e20260197. doi: 10.62675/2965-2774.20260197. PMID: 41711789.
Category: Quality Assurance/Quality Improvement
Keywords: discharge prescriptions, transitions of care, pharmacy callbacks (PubMed Search)
Posted: 2/22/2026 by Lena Carleton, MD
(Updated: 2/23/2026)
Click here to contact Lena Carleton, MD
Key Takeaway: Most emergency department prescription callbacks for clarification are preventable. The most frequently identified causes include unclear directions for use, incorrect medication or dose, allergy or adverse reaction concerns, and duplicate prescriptions. A quick double-check before you hit “send” can save you (and the pharmacist) a callback later.
Most patients seen in the emergency department (ED) are discharged with at least one prescription. However, errors in ED discharge prescriptions are not uncommon (one study reported an error rate of 13.4%) and can contribute to delays in care, medication nonadherence, and return ED visits, among other adverse events.
In this retrospective study, the authors analyzed a quality improvement database of pharmacy clarification requests to categorize and quantify the reasons pharmacies contact ED clinicians. The study was conducted at an academic emergency department in Arizona.
From October 2015 to February 2024, 2,714 clarification requests were identified. Of these, 63.4% were considered potentially preventable. The most frequently identified causes were unclear directions for use (33.1%), medication clarification (12.3%), dose clarification (11.5%), allergy or adverse reaction concerns (5.0%), and duplicate prescriptions (1.5%).
Nonpreventable clarifications accounted for 36.6% of requests and were related to insurance issues (14.6%), medication availability (14.0%), patient factors such as delayed presentation or lost prescriptions (4.8%), and requests to transfer prescriptions to another pharmacy (3.2%).
Notably, pediatric patients were nearly three times more likely than adults aged 18–64 to require dose clarification, likely reflecting the complexity of weight-based dosing. The authors suggest including patient weight on prescriptions when weight-based dosing is used to reduce pharmacy callbacks.
Key Takeaway: Most emergency department prescription callbacks for clarification are preventable. The most frequently identified causes include unclear directions for use, incorrect medication or dose, allergy or adverse reaction concerns, and duplicate prescriptions. A quick double-check before you hit “send” can save you (and the pharmacist) a callback later.
Elias-Campa D, Edwards CJ, Shirzai FM, Ng V. Identifying Preventable and Nonpreventable Prescription Callbacks for Clarification at an Academic Medical Center Emergency Department From 2015 to 2024. J Emerg Med. 2025 Nov;78:371-378. doi: 10.1016/j.jemermed.2025.03.023. Epub 2025 Apr 2. PMID: 41027291.
Kelly A. Murray, April Belanger, Lauren T. Devine, Aaron Lane & Michelle E. Condren (2017) Emergency Department Discharge Prescription Errors in an Academic Medical Center, Baylor University Medical Center Proceedings, 30:2, 143-146, DOI: 10.1080/08998280.2017.11929562
Category: Neurology
Keywords: CVST, stroke, cerebral venous sinus thrombosis (PubMed Search)
Posted: 2/18/2026 by Nicholas Contillo, MD
(Updated: 2/22/2026)
Click here to contact Nicholas Contillo, MD
Cerebral venous sinus thrombosis (CVST) is an emergent diagnosis frequently missed on standard brain imaging in the ED, with studies reporting miss rates up to 30–73% on noncontrast CT alone. Diagnostic delays average 4–10 days from initial presentation in confirmed cases. CTV and MRV both have very high sensitivity for detection of CVST.
When to Suspect CVST
Summary: Consider adding CTV in patients with strong thrombotic risk factors, atypical/multifocal hemorrhage patterns, or focal deficits unexplained by CT/CTA.
Category: Administration
Keywords: gender bias, conference speakers (PubMed Search)
Posted: 2/14/2026 by Kevin Semelrath, MD
(Updated: 2/21/2026)
Click here to contact Kevin Semelrath, MD
Bottom line: Good news! In 2022 and 2023, at ACEP, SAEM and AAEM, invited speakers were evenly split 50/50 women and men (with a small percentage nonbinary) showing no significant gender bias toward speaker invitation.
Krzyzaniak, Sara M. et al.
Annals of Emergency Medicine, Volume 87, Issue 2, 239 - 243
Category: Pediatrics
Keywords: OOCA, race, poverty, peds (PubMed Search)
Posted: 2/18/2026 by Jenny Guyther, MD
(Updated: 2/20/2026)
Click here to contact Jenny Guyther, MD
Bottom line: Socioeconomic differences in outcomes of cardiac arrest are present in the pediatric population as well and CPR education and resources should be present in ALL communities.
Previous studies have shown that socioeconomic differences are seen out of hospital cardiac arrests in adults. This study investigates these differences in the pediatric population.
This was a retrospective cohort study of the Cardiac Arrest Registry to Enhance Survival looking at out of hospital cardiac arrests in patients < 18 years. An index score was developed including race, household income, high school graduation rates and unemployment rates with a score of 4 representing the highest risk neighborhoods. Children from the areas with the highest risk score had lower odds of survival to hospital discharge and neurologically favorable survival compared to the lowest risk neighborhoods.
In the 6945 pediatric arrests included, 33% occurred in black children, 31% in white children and 10% in Hispanic children. 41% of the arrests occurred in the highest risk neighborhoods. Black children had a lower odds of survival to hospital discharge (OR 0.73) and discharge with neurologically favorable outcome (OR 0.64) compared to white children. Hispanic children did not have any worse survival outcomes compared to white children. This data also fits in with other studies that have shown children from high risk neighborhoods and black children as less likely to receive bystander CPR compared to white children and children in low risk neighborhoods.
Gathers CL, Rossano JW, Griffis H, McNally B, Al-Araji R, Berg RA, Chung S, Nadkarni V, Tobin JM, Naim MY. Sociodemographic disparities in incidence and survival for pediatric out-of-hospital cardiac arrest in the United States. Resuscitation. 2025 Jun;211:110607. doi: 10.1016/j.resuscitation.2025.110607. Epub 2025 Apr 15. PMID: 40246165.
Category: Trauma
Keywords: substance use, falls, older, injury (PubMed Search)
Posted: 2/4/2026 by Robert Flint, MD
(Updated: 2/19/2026)
Click here to contact Robert Flint, MD
In a single level 1 trauma center there were 274 patients age over 55 evaluated for falls in a one year retrospective period. Their blood toxicology was reviewed for presence of alcohol, opioids, benzodiazepines and cannabinoids. The authors found:
“detection rates were 21.2% for opioids, 18.6% for ethanol, 13.9% for benzodiazepines, and 9.1% for cannabinoids. Injuries identified included 16.4% spinal fractures, 9.5% extremity fractures, 7.7% hip/thigh/pelvic fractures…In this study, nearly 20% of adults 55+ presenting for fall-related trauma recently used substances that impair psychomotor function.”
An area for injury prevention research and intervention would be to screen patients over age 55 for substance use, consider prescribing patterns in this age group (benzodiazepines) , and discuss with patients fall risk avoidance.
Babu, Kavita M. et al.
Journal of Emergency Medicine, Volume 0, Issue 0
Category: EMS
Keywords: CPR, pediatric, T-CPR, dispatch, public safety (PubMed Search)
Posted: 2/18/2026 by Jenny Guyther, MD
(Updated: 3/12/2026)
Click here to contact Jenny Guyther, MD
Bottom line: Education to the public is needed to help to improve the information relayed to telecommunicators in an emergency. Further telecommunicator education can help to overcome the barriers within their control, such as the recognition of agonal breathing.
An important step in the chain of survival in cardiac arrest is recognition of an emergency. When a person calls 911, the telecommunicator needs to be able to obtain the necessary information to direct the right resource to the right patient and be able to deliver directions for CPR if required.
This study looked at 911 calls for pediatric patients who were in cardiac arrest on EMS arrival in Denmark over a 3 year period and identified 3 barriers to the recognition of the arrest by the telecommunicator.
Prolonged conversations focused on the cause of the child's condition as opposed to assessmening consciousness and breathing.
Assessing breathing when the patient has irregular or agonal breaths
Callers who were unable to communicate or follow instructions from the telecommunicator.
Kragh AR, Kjærholm SH, de Claville Holland Flarup L, Juul Grabmayr A, Borch-Johnsen L, Folke F, Tjørnhøj-Thomsen T, Hassager C, Malta Hansen C. Barriers for Responding to Pediatric Out-of-Hospital Cardiac Arrest During Emergency Medical Calls: A Qualitative Study. J Am Heart Assoc. 2025 Jan 7;14(1):e035636. doi: 10.1161/JAHA.124.035636. Epub 2024 Dec 18. PMID: 39692033; PMCID: PMC12054490.
Category: Critical Care
Keywords: Sodium, ICP, neurocritical care, sodium bicarbonate, bicarb, hyperosmolar (PubMed Search)
Posted: 2/17/2026 by Zachary Wynne, MD
Click here to contact Zachary Wynne, MD
Bottom Line: Hypertonic sodium bicarbonate (8.4%) can be used judiciously as an alternative hyperosmolar therapy in the setting of increased intracranial pressure (ICP) or cerebral edema with impending herniation, particularly in setting of concomitant metabolic acidosis. Two 50 mL ampules of hypertonic sodium bicarbonate is the equivalent of approximately 200 mL of 3% sodium chloride (hypertonic saline).
Scenario:
The CT scan on your patient presenting with altered mental status shows a large intraparenchymal hemorrhage with 8 mm of midline shift. Suddenly, the patient becomes bradycardic with irregular respirations. Examination shows aniscoria with a non reactive right pupil. You call for 3% sodium chloride (hypertonic saline) and mannitol but neither will arrive from pharmacy for the next 10 minutes. What can you do in the meantime?
Background:
Sodium bicarbonate (commonly known as baking soda, NaHCO3) is a salt that acts as a weak base when dissolved in water. Clinically, it comes in two forms: hypertonic sodium bicarbonate (8.4% in 50 mL ampules) and isotonic sodium bicarbonate (1.3%, made with 3 ampules of hypertonic bicarbonate in one liter of D5 water).
Hyperosmolar therapy is often used to temporize patients in the setting of cerebral edema/increased ICP with concern for herniation syndrome (Cushing triad, aniscoria with non reactive pupil, posturing). This therapy will temporize patients for CT imaging and definitive management. Usual choices include 3% hypertonic saline or mannitol. The administration of these agents increases intravascular osmolality and theoretically causes solute drag to pull water out of organs, such as the brain, decreasing edema.
Hypertonic sodium bicarbonate can also function in this manner. To compare osmolality:
Hypertonic sodium bicarbonate can be given by two 50 mL ampules given in rapid succession in the setting of elevated ICP. This is the osmotic equivalent to giving approximately 200 mL of 3% hypertonic saline. Hypertonic sodium bicarbonate is often found in code carts in the emergency department and can sometimes be easier to access quickly in case of an acute clinical change like our above scenario. Hypertonic sodium bicarbonate can also be considered in patients that have received multiple rounds of hypertonic saline and thus have developed a hyperchloremic metabolic acidosis. There is limited data from the Neurocritical Care literature that has shown decreased ICP in the setting of TBI with hypertonic sodium bicarbonate administration (references below).
Hypertonic sodium bicarbonate side effects include metabolic alkalosis which can be detrimental in the patient with elevated ICP; normocapnea/normocarbia is critical to maintain cerebral blood flow and excess sodium bicarbonate administration should be avoided in patients that already have a metabolic alkalosis. Additionally, the metabolic alkalosis from sodium bicarbonate can also precipitate hypocalcemia if a patient is at risk. Additionally, hypertonic sodium bicarbonate can also cause some irritation to peripheral veins.
References:
Category: Ultrasound
Keywords: POCUS, trauma, optic ultrasound (PubMed Search)
Posted: 2/16/2026 by Alexis Salerno Rubeling, MD
(Updated: 3/12/2026)
Click here to contact Alexis Salerno Rubeling, MD
Bottom Line: Left Optic Disc Elevation was found to be an independent predictor of mortality and need for surgical intervention for patients with head trauma.
A recent study aimed to compare the diagnostic and prognostic performance of optic nerve sheath diameter (ONSD) and optic disc elevation (ODE) in patients with head trauma.
A total of 257 patients were included; 51.4% were hospitalized, 12.5% required surgical intervention, and 8.2% experienced in?hospital mortality.
Left ODE was identified as an independent predictor of mortality, with an adjusted hazard ratio (HR) of 4.25 (95% CI, 1.48–12.1; p = 0.007). (Left ODE 1.3 mm with IQR of 0.7 in mortality group). It also demonstrated improved diagnostic performance for predicting the need for surgical intervention.
To measure ODE:
Measure the distance between the anterior peak of the optic disc and its junction with the posterior scleral surface.
To measure ONSD:
Measure 3 mm posterior to the papilla, placing calipers on the outer borders of the hyperechoic rim surrounding the optic nerve sheath.
Ahmet S, Nazire BA, Ramazan K. The test characteristics of ONSD and ODE tests in predicting the prognosis of patients with traumatic brain injury. AJEM in press 2026 doi: doi.org/10.1016/j.ajem.2026.02.015
Category: Trauma
Keywords: aajt, tourniquet (PubMed Search)
Posted: 2/4/2026 by Robert Flint, MD
(Updated: 2/14/2026)
Click here to contact Robert Flint, MD
A case report on use of the abdominal aortic and junctional tourniquet in a 27 year old female with hemorrhagic shock secondary to a pelvic fracture after a 10 meter fall demonstrated improved blood pressure and stabilized vasopressor use prior to operative intervention. This device has been used in battlefield situations, however very few reports of civilian use exist. Much more data is needed, however, it is a device to be aware of for future use.
From the manufacture's website:
"The AAJTS is an Abdominal Aortic Junctional Tourniquet that is designed to stop non-compressible hemorrhages wherever they occur on the body. FDA Certified for abdominal, axilla, inguinal and pelvic fractures, the AAJTS is battlefield tested and proven to be quick, easy, and effective to deploy.

1. Honnef, G., Freidorfer, D., Puchwein, P. et al. Bleeding control in catastrophic blunt pelvic trauma using the abdominal aortic and junctional tourniquet in a civilian level I trauma center: A case report. Scand J Trauma Resusc Emerg Med 34, 2 (2026). https://doi.org/10.1186/s13049-025-01517-w
2.https://www.life-assist.com/products/details/2848/abdominal-aortic-junctional-tourniquet/