Podcast 694: Complete Heart Block

Podcast 694: Complete Heart Block

Contributor: Nick Hatch, MD

Educational Pearls:

  • Complete heart block or 3rd degree atrioventricular (AV) block is diagnosed via EKG and occurs when electrical signals from the sinoatrial (SA) node are blocked from reaching the ventricles via the AV node and AV bundles
  • P waves and QRS complexes are independent
  • Often QRS rate is around 40
  • The rate is slow because the ventricular purkinje fibers have an intrinsic rate of 20-40 bpm, whereas the SA node has an intrinsic rate of 60-100 bpm
  • Treatment is usually with pacemaker, unless there is an identifiable etiology causing the heart block that can be reversed

References

Knabben V, Chhabra L, Slane M. Third-Degree Atrioventricular Block. [Updated 2020 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545199/

The Emergency Medical Minute is excited to announce that we are now offering AMA PRA Category 1 credits™ via online course modules. To access these and for more information, visit our website at www.emergencymedicalminute.org/cme-courses/ and create an account.

Donate to EMM today!



Episoder(1144)

Episode 958: Intranasal Fentanyl

Episode 958: Intranasal Fentanyl

Contributor: Aaron Lessen, MD Educational Pearls: How do we take care of kids in severe pain? There are many non-pharmacologic options for pain (i.e. ice, elevation) as well as more conventional medi...

26 Mai 20251min

Episode 957: Cardiac Asthma

Episode 957: Cardiac Asthma

Contributor: Travis Barlock, MD Educational Pearls: Wheezing is classically heard in asthma and COPD, but it can be the result of a wide range of processes that cause airflow limitation Narrowed bro...

19 Mai 20253min

Episode 956: Psychedelics and Risk of Schizophrenia

Episode 956: Psychedelics and Risk of Schizophrenia

Contributor: Jorge Chalit-Hernandez, OMS3 Educational Pearls: Psychedelics are being studied for their therapeutic effects in mental illnesses, including major depressive disorder, post-traumatic str...

12 Mai 20252min

Episode 955: Cardiac Effects of COVID-19

Episode 955: Cardiac Effects of COVID-19

Contributor: Ricky Dhaliwal, MD Educational Pearls: What factors are considered in a COVID-19 infection? The viral load: Understood as the impact of SARS-CoV-2 viral particles infecting host cell tis...

5 Mai 20254min

Episode 954: Combo Rescue Inhalers - New Guidelines

Episode 954: Combo Rescue Inhalers - New Guidelines

Contributor: Aaron Lessen, MD Educational Pearls: What is a Rescue Inhaler? A rescue inhaler is a medication for people with asthma to quickly reverse the symptoms of an asthma attack.  Historical...

30 Apr 20253min

Episode 953: Penicillin Allergies

Episode 953: Penicillin Allergies

Contributor: Geoff Hogan MD Educational Pearls: Penicillin allergies are relatively uncommon despite their frequent reports 10% of the population reports a penicillin allergy but only 5% of these...

21 Apr 20252min

Episode 952: Heart Transplants

Episode 952: Heart Transplants

Contributor: Travis Barlock, MD Educational Pearls: Key clinical considerations when managing heart transplant patients due to their unique pathophysiology 1. Arrhythmias A transplanted heart i...

14 Apr 20253min

Episode 951: Pediatric Febrile Seizures

Episode 951: Pediatric Febrile Seizures

Contributor: Taylor Lynch, MD Educational Pearls: Pediatric febrile seizures are defined as seizures that occur between the ages of six months to five years in the presence of a fever greater than o...

7 Apr 20256min

Populært innen Vitenskap

fastlegen
tingenes-tilstand
smart-forklart
jss
sinnsyn
rekommandert
rss-rekommandert
villmarksliv
tomprat-med-gunnar-tjomlid
forskningno
rss-paradigmepodden
fjellsportpodden
aldring-og-helse-podden
tidlose-historier
diagnose
pod-britannia
vett-og-vitenskap-med-gaute-einevoll
nordnorsk-historie
nevropodden
dekodet-2