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

Avsnitt(1146)

Podcast 884: Nerve Blocks

Podcast 884: Nerve Blocks

Contributor: Meghan Hurley MD Educational Pearls: What is a nerve block? A nerve block is the medical procedure of injecting anesthetic into the area around a nerve to block pain signals. They ar...

1 Jan 20246min

Podcast 883: Migraine Treatment in Cardiovascular Disease

Podcast 883: Migraine Treatment in Cardiovascular Disease

Contributor: Jorge Chalit, OMS II Educational Pearls: Migraine pathophysiology Primarily mediated through the trigeminovascular system Serotonin, dopamine, and calcitonin gene-related peptide (...

25 Dec 20233min

Podcast 882: Thrombolytics for Minor Strokes

Podcast 882: Thrombolytics for Minor Strokes

Contributor: Aaron Lessen MD Educational Pearls: How is the severity of a stroke assessed? Strokes are assessed by the NIH Stroke Scale (NIHSS), this scale has different tasks, such as asking the pe...

20 Dec 20232min

Podcast 881: Pediatric Readmissions

Podcast 881: Pediatric Readmissions

Contributor: Nick Tsipis MD Educational Pearls: The review article assessed 16.3 million patients across six states to identify those at high-risk for critical revisit Criteria for critical revis...

12 Dec 20233min

Podcast 880: OB Delivery in the ED

Podcast 880: OB Delivery in the ED

Contributor: Meghan Hurley MD Educational Pearls: Pearls about labor: Labor is split into 3 stages. Stage 1 starts when the first persistent contractions are felt and goes up until the cervix is ...

4 Dec 20238min

Podcast 879: A Case of Pediatric Anaphylactic Shock

Podcast 879: A Case of Pediatric Anaphylactic Shock

Contributor: Dr. Taylor Lynch Educational Pearls: Time of arrival until intubation was 26 minutes but nobody tried anterior neck access like a cricothyrotomy until his dad arrived Traditional ACLS...

27 Nov 20235min

Podcast 878: Opioids for Low Back and Neck Pain

Podcast 878: Opioids for Low Back and Neck Pain

Contributor: Jared Scott MD Educational Pearls: Should we use opioids to treat low back and neck pain? The OPAL Trial, published in The Lancet, in June 2023, attempted to answer this very question. ...

20 Nov 20233min

Podcast 877: Viral Respiratory Infections in Children

Podcast 877: Viral Respiratory Infections in Children

Contributor: Jared Scott MD Educational Pearls A recently published study assessed the burden of respiratory viruses in a longitudinal cohort of children from 0 to 2 years of age The children in t...

13 Nov 20233min

Populärt inom Vetenskap

dumma-manniskor
svd-nyhetsartiklar
p3-dystopia
allt-du-velat-veta
kapitalet-en-podd-om-ekonomi
det-morka-psyket
rss-ufo-bortom-rimligt-tvivel
rss-vetenskapsradion
pojkmottagningen
sexet
rss-vetenskapsradion-2
dumforklarat
rss-broccolipodden-en-podcast-som-inte-handlar-om-broccoli
medicinvetarna
halsorevolutionen
bildningspodden
rss-experimentet
rss-spraket
hacka-livet
vetenskapsradion