Background: Placement of vascular access for administration of resuscitation drugs and fluids is a common procedure in the management of out of hospital cardiac arrest (OHCA). While intravenous (IV) placement has been the standard approach for decades, intraosseous (IO) access is rapid and safe and may be the preferred approach due to fact that the bone marrow does not collapse during shock states as peripheral veins often do. Despite it’s advantages, there are concerns about IO placement because of the potential for drugs to pool in the marrow and not circulate. Prior studies have shown an association with tibial IO placement and decreased rate of ROSC though no association with worse neurologic outcomes (Feinstein 2017). Read more →
Tag Archive for: OHCA
Background: The two most important things that we can do in cardiac arrest to improve survival and neurologically intact outcomes is high quality CPR, with limited interruptions and early defibrillation. In the case of the former, the 2015 AHA/ACC CPR updates recommended a compression rate of 100 -120/min, a depth of 2 – 2.4in, allowing full recoil, and minimizing pauses. This is a lot to remember during a stressful code situation and one way many providers are offloading themselves cognitively is by the use of mechancical CPR (mCPR) devices. In theory these devices compress at a fixed rate, and depth, with the added benefit that the machine simply does not tire out. Additionally, use of this device allows another provider to be available for other procedures and interventions. A recent systematic review and meta-analysis in looked at five randomized clinical trials with over 10,000 patients with out-of-hospital cardiac arrest (OHCA) (Gates 2015). They concluded that there was no difference in ROSC, survival or survival with good neurological outcomes with the use of these devices compared to manual CPR. It is important to state that none of these studies showed increased harm either. A new paper just published in Circulation however, argues that mCPR during OHCA was associated with lower neurologically intact survival. Read more →
Cardiac Arrest, Return of Spontaneous Circulation (ROSC) With No ST-Segment Elevation on ECG. Now What?
Background: The American Heart Association/American College of Cardiology (AHA/ACC) give a Class I recommendation for activation of the cardiac catheterization lab in patients with out-of-hospital cardiac arrest (OHCA) whom ST-segment elevation myocardial infarction (STEMI) is present. The evidence for early cardiac catheterization in patients after cardiac arrest, with ROSC and no STEMI is a bit more controversial. The most recent 2015 AHA/ACC guidelines recommend, “it may be reasonable,” to perform an emergent cardiac catheterization in select patients without STEMI. Read more →
Background: Many Out-of-Hospital Cardiac Arrest (OHCA) are attributable to ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT). Both are said to be treatable presentations of OHCA, due to their responsiveness to defibrillation. VF and VT can persist or recur after defibrillation with an inverse relationship between the duration of OHCA, the recurrences of arrhythmias, and ultimately resuscitation outcomes.
Amiodarone and lidocaine are both recommended by the advanced cardiovascular life support (ACLS) guidelines to help promote successful defibrillation in refractory ventricular fibrillation or pulseless ventricular tachycardia and to prevent recurrences. In previous randomized controlled trials patients receiving amiodarone vs placebo or lidocaine in OHCA were more likely to have return of spontaneous circulation (ROSC) and to survive to hospital admission. However the effects of amiodarone on survival to hospital discharge or neurologic outcome still remain uncertain. Should we be using anti-dysrhythmic drugs in out-of-hospital cardiac arrest? Read more →
Welcome to the December 2015 REBELCast, where Swami, Matt, and I are going to tackle a couple of topics in the world of Cardiology and Critical Care. First of all, we all know that the optimal treatment for STEMI is getting the patient to the cardiac catheterization lab, and time is muscle, but does it help to get patients to the catheterization lab even faster than 90 minutes? Or does speeding up the time have bad outcomes? Secondly, it has been drilled into our heads that high-quality CPR with minimal to no interruptions is key in OHCA. This gives our patients the best chance of neurologically intact survival. But a new study just published might beg to differ. So with that introduction today we are going to specifically tackle:
Topic #1: Reducing Door to Balloon (D2B) Times to <90 Minutes in STEMI
Topic #2: Continuous vs Interrupted CPR in OHCA Read more →