May 23, 2019

Background: The clinical importance of immediate coronary angiography, with subsequent percutaneous coronary intervention (PCI) in OHCA patients without STEMI is a matter of debate.  We have already covered the COACT trial on REBEL EM, but this is a second study, the pilot phase of the DISCO trial, assessing immediate vs delayed coronary angiography in patients with OHCA and without STEMI on ECG.

May 23, 2019

Background: Predicting a challenging airway is important to assist in the most optimal approach to airway management during RSI.  Two such tools include the Mallampati and LEMON scores and were derived in the pre-operative setting. Major limitations of these scores include the requirement of patients to be awake and cooperative and they don’t incorporate physiologic factors into them. The HEAVEN criteria is a recently developed tool thought to be more relevant and feasible for emergency airway assessment.  Each letter of HEAVEN stands for the difficult airway characteristic:
  • Hypoxemia - ≤93% at the time of initial laryngoscopy
  • Extremes of size – Pediatric patient ≤8 years of age or clinical obesity
  • Anatomic challenge – any structural abnormality that is anticipated to limit laryngoscopic view
  • Vomit/blood/fluid – Clinically significant fluid noted in the pharynx or hypopharynx prior to laryngoscopy
  • Exsanguination – Suspected anemia raising concerns about limiting safe apnea times
  • Neck mobility issues – Limited cervical range of motion

May 13, 2019

Background: Post-ROSC care is a multifaceted endeavor that includes targeted temperature management (TTM), vital-organ support, and treatment of the underlying cause of arrest. One of the most common causes of cardiac arrest is acute coronary syndrome.  Current European and American guidelines recommend immediate coronary angiography with PCI in patients who present with cardiac arrest due to STEMI. However, in patients with cardiac arrest who do not have STEMI, the role of immediate coronary angiography is still up for debate.  The ACC/AHA published a statement in July of 2015 (Covered on REBEL EM) that proposed an algorithm to stratify cardiac arrest patients who are comatose on presentation for emergent coronary angiography and possible PCI. 

May 9, 2019

Background Information: The sequential administration of a sedative and neuromuscular blocking agent (NMBA) to facilitate the passage of an endotracheal tube is a common method of intubating in both the emergency department (ED) and intensive care unit (ICU). In fact, 85% of ED intubation and 75% of ICU intubations are performed using RSI. 1 It has been shown that the NMBA not only provides muscle relaxation to improve laryngeal view but has also reduced intubation associated complications, ultimately improving the likelihood of intubation success.2-4 While the early use of a sedative leads to hypoventilation and apnea, the patient has an increased risk of hypoxemia and delaying optimal intubation conditions.1 Use of an NMBA was associated with a lower prevalence of hypoxemia, however the order of its administration before the sedative remains controversial for fear of patient awareness and its use has been limited to the operating room (OR) setting. 1,2 The authors of this study sought to identify whether the order of RSI drugs was associated with increased apnea time during intubation. They defined this interval as the time elapsed from administration of the first RSI drug to the end of a successful first intubation attempt.

May 3, 2019

Despite decades of experience with endotracheal intubation, we continue to find approaches to improving the process of how we intubate.  In today’s post we are not only going to talk about how to avoid post intubation cardiac arrest, but we are also going to cover 5 rather controversial topics in airway management including: Apneic oxygenation (ApOx), use of video laryngoscopy (VL) compared to direct laryngoscopy (DL), bougie 1st intubation, back up head elevated (BUHE) intubation, and finally bag valve mask ventilation (BVM) prior to intubation.