Cardiovascular Archives - The Emergency Medical Minute

Cardiovascular

Podcast 813: Pulse Oximetry

Contributor: Travis Barlock, MD Educational Pearls: Most oxygen in the body is bound to hemoglobin, forming oxyhemoglobin. Less than 1% of the oxygen in the body is dissolved in plasma.  Pulse Oximeters (Pulse Ox) function by emitting wavelengths of light from one side, and capturing the amount absorbed on the opposite side. A calculation determined…

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Back From The Dead

Back from the Dead Chief Complaint: Chest Tightness HPI: 55-year-old male reporting chest tightness 8 out of 10 that began right before getting in the shower just prior to arrival to the ED, has been persistent and is now at a 5 out of 10. He took some aspirin but nothing else to treat it,…

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Podcast 806: Normal ECGs

Contributor: Jarod Scott, MD Educational Pearls: Physicians are typically advised not to trust computer interpretation of ECGs  Retrospective study was done of computer interpreted normal ECGs to evaluate the accuracy of such an interpretation 989 ECGs were interpreted as “Normal sinus rhythm, Normal ECG” by proprietary cardiology software on MUSE Cardiology Information System These EKGs…

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Podcast 804: Brugada Criteria for V Tach

Contributor: Peter Bakes, MD Educational Pearls: Tachycardia describes a heart rate of >120 beats per minute Wide Complex describes a QRS duration of >120 ms or 3 small boxes on a standard EKG The major differential for a wide complex tachycardia is Ventricular Tachycardia (VT), aka “V Tach”, or Supraventricular Tachycardia (SVT) with Aberrancy   SVT…

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Podcast 799: EKG Abnormalities in Renal Failure

Contributor: Peter Bakes, MD Educational Pearls: Patients in renal failure may have elevated serum potassium levels which can result in EKG changes.   EKG changes in the setting of hyperkalemia generally depend on the serum level. Mild elevation may cause peaked T waves. At higher serum levels there will be loss of P waves plus wide…

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A Shocking Adverse Effect

A Shocking Adverse Effect Chief Complaint: Defibrillator shock HPI: 50-year-old biologic male who identifies as a female presented after reportedly being shocked by her defibrillator 5 times before calling EMS, EMS noted that they witnessed 1 shock. They also noted that blood pressure was in the low 100s and heart rate was between 200-260 before…

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Podcast 787: TAVR and Stroke

 Contributor: Nick Hatch, MD Educational Pearls: Transcatheter aortic valve replacement (TAVR) is an increasingly common endovascular procedure to treat aortic stenosis TAVR is an alternative to the open approach surgical aortic valve replacement (SAVR) for patients who are inoperable or are high risk surgical candidates Following TAVR, there is increased risk of stroke, particularly…

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Podcast 783: LAD Occlusion & Troponin

Contributor: Jared Scott, MD Educational Pearls: A study randomized 34 healthy patient to have their left anterior descending artery (LAD) occluded by balloon for 0, 15, 30, or 90 seconds   Subsequently,  cardiac troponins (cTns) and Copeptin were measured every 15 minutes for 3 hours, then every 30 minutes for the next 3 hours 5 conclusions…

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On the Streets #13: Pre-hospital Cardiology Concepts

On this episode of On the Streets, our host, Jordan Ourada, talks with cardiologist, Dr. Chirag Chauhan, about all things cardiac. Highlighted topics: Wrist versus femoral access in the cath lab The most important prehospital interventions for an MI Nitroglycerin: Who gets it and what are the precautions Lidocaine and amiodarone in a heart attack…

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Podcast 773: Atrial Fibrillation Medications

Contributor: Aaron Lessen, MD Educational Pearls: Atrial fibrillation is an irregular heart rhythm that sometimes requires rate control in setting of rapid ventricular response (RVR) Calcium channel blocker and beta blockers are the most frequently used medications to block the AV node and slow down the heart rate in atrial fibrillation with RVR If a…

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