This RAGEback includes commentary and reaction to the RAGE Session Three discussion of severe life-threatening acute asthma. It features comments from Mary Shue on THAM, Greg Miller on lignocaine and someone called Scott Weingart (anyone heard of him?) on non-invasive ventilation.
Here’s some stuff on lignocaine (a fairly evidence free zone!):
Maslow AD, Regan MM, Israel E, Darvish A, Mehrez M, Boughton R, Loring SH. Inhaled albuterol, but not intravenous lidocaine, protects against intubation-induced bronchoconstriction in asthma. Anesthesiology. 2000 Nov;93(5):1198-204. PubMed PMID: 11046206. [Free Full Text]
More recently though, this paper suggested some beneficial effects on bronchoconstriction post-intubation:
Adamzik M, Groeben H, Farahani R, Lehmann N, Peters J. Intravenous lidocaine after tracheal intubation mitigates bronchoconstriction in patients with asthma. Anesth Analg. 2007 Jan;104(1):168-72. PubMed PMID: 17179265.
Some stuff by Scott Weingart on Emcrit.org relevant to this discussion:
The entire RAGE team were at smaccGOLD, and we loved every minute of it.
Of course, Cliff Reid stole the show as per usual with his talk on ‘When should resuscitation stop?” (look out for it on the SMACC podcast in the coming months) but all the RAGE team made huge contributions to the critical care conference of the millennium.
This was the first time the entire RAGE team were in one place at the same time – rather than connected via Skype over the Internet – so we took the chance to record some audio. We managed to include a few friends too… Though, as always, the best bits will probably have to be edited out ;-)
Look out for the next RAGE podcast featuring these SMACCers:
Just in time for smaccGOLD, RAGE Session Three is here!
It is 67 min 53 sec long and includes:
Introduction, including an ERCAST shout out and apologies from Haney… (starts 00:00 min)
‘What’s bubbling up?’ (starts 01:30 min) — shout outs and interesting discoveries from the world of FOAM and elsewhere featuring pre-hospital spinal immobilisation, astronaut Chris Hadfield, ‘Mistakes were made’, EMA’s 25th anniversary edition and the need to tailor blood pressure targets to the individual.
the RAGE team discussing acute life-threatening asthma (starts 15:52 min)
the RAGE team discussing ‘Medical Reversal’ (starts 52:52 min)
‘A blast from the past’ by Karel Habig on ‘Ether Day’ and the origins of general anaesthesia (starts 63:42 min)
‘Words of Wisdom’ featuring a quote from Cliff Reid’s role model, and some other guy (starts 66:32 min)
The RAGE podcast is on iTunes here and the RAGE podcast audio feed is available here. Here are the show notes for RAGE Session Three:
Prasad V, et al. A Decade of Reversal: An Analysis of 146 Contradicted Medical Practices. Mayo Clin Proc. 2013 Jul 12. doi:pii: S0025-6196(13)00405-9. 10.1016/j.mayocp.2013.05.012. [Epub ahead of print] PubMed PMID: 23871230. [Free Full Text] (includes a video commentary by the lead author)
Walters BC, Hadley MN, Hurlbert RJ, Aarabi B, Dhall SS, Gelb DE, Harrigan MR, Rozelle CJ, Ryken TC, Theodore N. Guidelines for the management of acute cervical spine and spinal cord injuries: 2013 update. Neurosurgery. 2013 Aug;60 Suppl 1:82-91. doi: 10.1227/01.neu.0000430319.32247.7f. PubMed PMID: 23839357. [Free Full Text articles]
Chesnut RM, et al; Global Neurotrauma Research Group. A trial of intracranial-pressure monitoring in traumatic brain injury. N Engl J Med. 2012 Dec 27;367(26):2471-81. doi: 10.1056/NEJMoa1207363. Epub 2012 Dec 12. Erratum in: N Engl J Med. 2013 Dec 19;369(25):2465. PubMed PMID: 23234472; PubMed Central PMCID: PMC3565432.
Bellomo R, Chapman M, Finfer S, Hickling K, Myburgh J. Low-dose dopamine in patients with early renal dysfunction: a placebo-controlled randomised trial. Australian and New Zealand Intensive Care Society (ANZICS) Clinical Trials Group. Lancet. 2000 Dec 23-30;356(9248):2139-43. PubMed PMID: 11191541.
Jacobs IG, Finn JC, Jelinek GA, Oxer HF, Thompson PL. Effect of adrenaline on survival in out-of-hospital cardiac arrest: A randomised double-blind placebo-controlled trial. Resuscitation. 2011 Sep;82(9):1138-43. doi: 10.1016/j.resuscitation.2011.06.029. Epub 2011 Jul 2. PubMed PMID: 21745533.
Finfer S, Bellomo R, Boyce N, French J, Myburgh J, Norton R; SAFE Study Investigators. A comparison of albumin and saline for fluid resuscitation in the intensive care unit. N Engl J Med. 2004 May 27;350(22):2247-56. PubMed PMID: 15163774.
The discussion of verapamil as an option for the treatment of supraventricular tachycardia (SVT) in RAGE Session Two went off like a fire cracker in the FOAM world.
In this RAGEback, Minh Le Cong from the PHARM podcast explains why the RAGE discussion is not going to change his practice, which is to use adenosine as a first line agent.
This is followed by a response by RAGErs Karel and Cliff.
You — the listener — are left to make up your own mind about which patients (if any) you’ll consider verapamil as an option.
References and Links
Minh cites these references (in the order they were mentioned):
Leitner RP, Hawker RE, Celermajer JM. Intravenous verapamil in the treatment of paroxysmal supraventricular tachycardia in children. Aust Paediatr J. 1983 Mar;19(1):40-4. PubMed PMID: 6870700.
Delaney B, Loy J, Kelly AM. The relative efficacy of adenosine versus verapamil for the treatment of stable paroxysmal supraventricular tachycardia in adults: a meta-analysis. Eur J Emerg Med. 2011 Jun;18(3):148-52. doi: 10.1097/MEJ.0b013e3283400ba2. Review. PubMed PMID: 20926952.
Hood MA, Smith WM. Adenosine versus verapamil in the treatment of supraventricular tachycardia: a randomized double-crossover trial. Am Heart J. 1992 Jun;123(6):1543-9. PubMed PMID: 1595533.
Anugwom C, Sulangi S, Dachs R. Adenosine vs. calcium channel blockers for supraventricular tachycardia. Am Fam Physician. 2007 Jun 1;75(11):1653-4. Review. PubMed PMID: 17575655. [Free Full Text]
Brady WJ Jr, DeBehnke DJ, Wickman LL, Lindbeck G. Treatment of out-of-hospital supraventricular tachycardia: adenosine vs verapamil. Acad Emerg Med. 1996 Jun;3(6):574-85. PubMed PMID: 8727628.
Karel and Cliff added these to the mix:
Holdgate A, Foo A. WITHDRAWN: Adenosine versus intravenous calcium channel antagonists for the treatment of supraventricular tachycardia in adults. Cochrane Database Syst Rev. 2012 Feb 15;2:CD005154. doi: 10.1002/14651858.CD005154.pub3. Review. PubMed PMID: 22336809. [Free Full Text] (note: withdrawn by the author due to lack of time and resources to update)
Miyagawa K, Dohi Y, Ogihara M, Sato K. Administration of intravenous calcium before verapamil to prevent hypotension in elderly patients with paroxysmal supraventricular tachycardia. J Cardiovasc Pharmacol. 1993 Aug;22(2):273-9. PubMed PMID: 7692169.
Riaz R, Mishra J, Hussain S, Sinha LM. Adenosine Versus Verapamil for the Treatment of Supra-ventricular Tachycardia: Randomized Comparative Trial. Pakistan J Med & Health Sci. 2012 Jul-Sept [Free Full Text]
Lapage MJ, Bradley DJ, Dick M 2nd. Verapamil in infants: an exaggerated fear? Pediatr Cardiol. 2013 Oct;34(7):1532-4. doi: 10.1007/s00246-013-0739-8. Epub 2013 Jun 26. PubMed PMID: 23800976.
Roie Tal’s Prezi journal club presentation on the Lapage et al 2013 article:
The links mentioned at the end are:
ERCAST.org — How to run a code (2014) (includes Anand Swaminathan’s discussion of using calcium channel blockers for SVT)