Emergency Medical Minute23 Okt 2023

Episode 874: Bradyarrhythmias

Contributor: Dylan Luyten MD

Educational Pearls:

What is a Bradyarrhythmia?

Also known as a bradyarrhythmia, it is an irregular heart rate that is also slow (below 60 beats per minute).

What can cause it?

Complete heart block AKA third-degree AV block; identified on ECG by a wide QRS, and complete dissociation between the atrial and ventricular rhythms with the ventricular being much slower. Treat with a pacemaker.
Medication overdose, especially beta blockers. Many other drugs can slow the heart as well including: opioids, clonidine, digitalis, amiodarone, diltiazem, and verapamil to name a few.
Electrolyte abnormalities, specifically hyperkalemia. Hypokalemia, hypocalcemia, and hypomagnesemia can also cause bradyarrhythmias.
Myocardial infarction. Either by damaging the AV node or the conduction system itself or by triggering a process called Reperfusion Bradycardia.
Hypothermia. Bradycardia is generally a sign of severe or advanced hypothermia.

References

Jurkovicová O, Cagán S. Reperfúzne arytmie [Reperfusion arrhythmias]. Bratisl Lek Listy. 1998 Mar-Apr;99(3-4):162-71. Slovak. PMID: 9919746.
Simmons T, Blazar E. Synergistic Bradycardia from Beta Blockers, Hyperkalemia, and Renal Failure. J Emerg Med. 2019 Aug;57(2):e41-e44. doi: 10.1016/j.jemermed.2019.03.039. Epub 2019 May 30. PMID: 31155316.
Wung SF. Bradyarrhythmias: Clinical Presentation, Diagnosis, and Management. Crit Care Nurs Clin North Am. 2016 Sep;28(3):297-308. doi: 10.1016/j.cnc.2016.04.003. Epub 2016 Jun 22. PMID: 27484658.

Summarized by Jeffrey Olson MS2 | Edited by Meg Joyce & Jorge Chalit, OMSII

Denne episoden er hentet fra en åpen RSS-feed og er ikke publisert av Podme. Den kan derfor inneholde annonser.

Episoder(1166)

Podcast 1011: Creepy Crawlies

Contributor: Meghan Hurley, MD Educational Pearls: What animal is the most lethal to humans? Depending on how we define lethal, and animal, this answer is actually not straight forward. Globall...

6 Jul 7min

Podcast 1010: First Pass Intubation Success

Contributor: Travis Barlock, MD Educational Pearls: First-pass success is critical to limit complications from apnea, hypoxia, and airway trauma. Complication rate for patients intubated on the f...

29 Jun 3min

On the Streets- Zero to Rodeo

Dan Orbidan, OMS-II and Dr. Travis Barlock, MD discuss a real out of hospital call. This episode covers the implications of a pharmacologically abnormal patient presentation and the pre and post hospi...

22 Jun 35min

Carepoint Journal Club- Neurology

Carepoint Journal Club is a quarterly series with discussions about a medical topic, brought to you by Carepoint's Emergency Physicians.

15 Jun 36min

Podcast 1009: Prevention for Recurrent UTI

Contributor: Aaron Lessen, MD Educational Pearls: UTIs are commonly seen in older women We often see them taking long-term prophylactic antibiotics because of common recurrence. Around 20-30% of...

8 Jun 1min

Podcast 1008: Acupuncture for Low Back Pain in Older Adults

Contributor: Aaron Lessen, MD Educational Pearls: Back pain is a common presenting complaint in the emergency department. Challenges arise when tailoring care to elderly populations using standar...

1 Jun 2min

Podcast 1007: Caffeine Pharmacology

Contributor: Travis Barlock, MD Educational Pearls: Caffeine Geography and Types: Caffeine is found throughout the world and has evolved independently in various plants that are not evolutionarily...

25 Mai 4min

Podcast 1006: Cannabinoid Pharmacology

Contributor: Travis Barlock, MD Educational Pearls: Endocannabinoid System: THC binds CB1 and CB2 receptors in neurons and immune cells Δ9-Tetrahydrocannabinol (THC) is the main psychoactive compo...

18 Mai 5min