Episode 874: Bradyarrhythmias

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

  1. Jurkovicová O, Cagán S. Reperfúzne arytmie [Reperfusion arrhythmias]. Bratisl Lek Listy. 1998 Mar-Apr;99(3-4):162-71. Slovak. PMID: 9919746.

  2. 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.

  3. 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

Episoder(1146)

Podcast 856: ED Errors and Counterstudy

Podcast 856: ED Errors and Counterstudy

Contributor: Nicholas Tsipis, MD Educational Pearls: What study was Dr. Tsipis talking about? In December of 2022, the Agency for Healthcare Research and Quality (AHRQ) put out a study titled "Diagn...

19 Jun 20234min

Podcast 855: QT Intervals

Podcast 855: QT Intervals

​​Contributor: Travis Barlock MD Educational Pearls The QT interval represents phases 2 and 3 of ventricular plateau and repolarization, respectively. As the QT interval lengthens, more sodium an...

12 Jun 20234min

Mental Health Monthly #16: Psychosis in the ED Part II

Mental Health Monthly #16: Psychosis in the ED Part II

Contributors: Andrew White MD & Travis Barlock MD In this follow-up episode Dr. Andrew White, a practicing psychiatrist with an addiction medicine fellowship, and Dr. Travis Barlock, an emergency phys...

7 Jun 202324min

Episode 854: Tranq (xylazine) with Heroin

Episode 854: Tranq (xylazine) with Heroin

Contributor: Aaron Lessen, MD Educational Pearls: What is Tranq? Tranq is the street name for xylazine, a sedative drug typically used in veterinary medicine. Xylazine has recently emerged as a re...

5 Jun 20232min

Podcast 853: Critical Care Medications - Vasopressors

Podcast 853: Critical Care Medications - Vasopressors

Contributor: Travis Barlock MD Educational Pearls: Three categories of pressors: inopressors, pure vasoconstrictors, and inodilators Inopressors:  Epinephrine - nonselective beta- and alpha-adr...

29 Mai 20235min

Podcast 852: Angioedema After Thrombolysis

Podcast 852: Angioedema After Thrombolysis

Contributor: Aaron Lessen, MD Educational Pearls: What is thrombolysis? Thrombolysis is performed by administration of a medication that promotes the body's natural ability to break up clots. These ...

22 Mai 20232min

Podcast 851: High-Dose Nitroglycerin in SCAPE

Podcast 851: High-Dose Nitroglycerin in SCAPE

Contributor: Aaron Lessen MD Educational Pearls: SCAPE (Sympathetic Crashing Acute Pulmonary Edema), formerly known as flash pulmonary edema, is a life-threatening condition due to a sudden sympathet...

15 Mai 20233min

Podcast 850: Cardiac Arrest - Entertainment vs. Reality

Podcast 850: Cardiac Arrest - Entertainment vs. Reality

Contributor: Travis Barlock, MD Educational Pearls: Sudden Cardiac Arrest (SCA) is defined as when the heart suddenly stops beating. Immediate treatment for SCA includes Cardiopulmonary Resuscitation ...

8 Mai 20232min

Populært innen Vitenskap

fastlegen
tingenes-tilstand
rekommandert
jss
rss-rekommandert
villmarksliv
forskningno
sinnsyn
rss-paradigmepodden
fjellsportpodden
rss-nysgjerrige-norge
vett-og-vitenskap-med-gaute-einevoll
nevropodden
diagnose
smart-forklart
nordnorsk-historie
abid-nadia-skyld-og-skam
rss-overskuddsliv
dekodet-2
tidlose-historier