October 15, 2019

Background: Evidence from the CRASH-2 trial showed an absolute reduction in mortality of 1.5% (NNT = 67) in patients with extracranial bleeding treated with tranexamic acid  (TXA) within 3 hours of injury. However, CRASH-2 did not answer the question of effect on mortality in patients with intracranial hemorrhage (ICH), as these patients were excluded from the trial.  It makes biologic sense that administration of TXA in patients with traumatic brain injury (TBI) might prevent or reduce ICH expansion and thus avert brain herniation and death.  There were two smaller RCTs [2] that showed a reduction in death with TXA in patients with ICH. However, both of these trials were small and considered to be hypothesis generating only. TICH-2 [3] was an international, randomized, double-blind, placebo-controlled phase 3 trial in adults with ICH from acute stroke with ≈2300 patients and showed no difference between groups in functional status at day 90. TICH-2 did show a small improvement in hematoma expansion at day 2 and death by day 7.  Due to the fact that these  findings were secondary outcomes they were also hypothesis generating. All of the above positive findings therefore required confirmation in a larger randomized trial, which has finally arrived…CRASH-3.

September 11, 2019

Take Home Points:

  • Get definitive airway control when necessary
    • Use modality you’re most comfortable with
  • Hard signs -  pulsatile bleeding, bruit or thrill, expanding hematoma, airway compromise, massive hemoptysis (think airway injury), hematemesis (think esophageal injury), grossly injured trachea, neurologic deficit, subcutaneous emphysema.
  • Soft Signs are hypotension that resolves, stable hematoma, wound in proximity to major vascular structure, minor hemoptysis, dyspnea, dysphagia, chest tube air leak, vascular bruit or thrill (depends on surgeon).
  • Hard Sign on presentation goes straight to the OR. Soft Sign on presentation gets some imaging done
  • Resuscitate with blood products -> Activate massive transfusion protocol
  • Most hemorrhage will respond to direct pressure
  • Don't miss other injuries!

August 8, 2019

Background: Trauma patients can be a rather difficult patient population to treat with multiple ongoing issues.  There is always a balance of hemorrhage control vs prophylaxis for venous thromboembolism (VTE), as both can cause increased morbidity and mortality.  One method to balance this challenging issue is retrievable inferior vena cava (IVC) filters, which at face value sound like a nice solution (Prevent VTE while avoiding worsening hemorrhage).  The main issue with IVC filters is there is limited high quality data to support the use of these devices and IVC filters are not without their own long-term complications as well. Finally, there are also conflicting recommendations depending on which guidelines you choose to read [3][4][5].

June 10, 2019

Airway management as the first priority has been the backbone of resuscitation for years. “Address A first, before moving to B and C,” is what we are taught and what we go on to teach successive generations of learners. For appropriately trained clinical teams, either in- or prehospital, the completion of “A” may well mean performing a rapid sequence intubation (RSI) From its inception in the 1970s, there has been continued evolution in how we approach RSI (and airway management in general) in the physiologically threatened patient – this post will focus on the trauma patient. You can revisit some really well-done blogs and podcasts over the last few years that have highlighted various approaches to prevent peri- and post-intubation problems. Like cardiac arrest.

May 1, 2019

Take Home Points on Blunt Cardiac Injury

  • No single test can be used to exclude BCI. However a thorough physical exam combined with a 12-lead EKG, troponin measurement, and echocardiography can be used to characterize BCI and direct care
  • Obtain a 12-lead EKG in all thoracic trauma patients 
  • A chest x-ray may help to identify associated injuries. However, isolated musculoskeletal injuries such as sternal fractures do not correlate with a risk of BCI
  • Bedside TTE can quickly evaluate for life-threats such as cardiac tamponade; A TEE is both sensitive and specific across the spectrum of BCI pathology and is part of a comprehensive evaluation
  • BCI can be excluded in a patient without EKG abnormalities and a negative troponin I