Playlist: Cardiac50 Videos

  1. 08:17

    Simplified Approach to AV blocks

    Uploaded January 2023

  2. 5Videos

    Rescuing the Right Ventricle

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    Playlist: Rescuing the Right Ventricle

    Uploaded September 2021

  3. 00:18

    Primum Atrial Septal Defect

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  4. 00:17

    Secundum Atrial Septal Defect

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  5. 02:23


    Uploaded July 2020

  6. 00:14

    Ruptured AAA

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  7. 01:37

    Lung Point

    Uploaded January 2020

  8. 02:30

    Aortic Insufficiency

    Uploaded January 2020

  9. 09:00

    Blue Protocol

    Uploaded January 2020

  10. 06:41

    Atrial Fibrillation

    Uploaded December 2019

  11. 00:21

    Severe D Sign

    Uploaded November 2019

  12. 00:21

    Mitral Regurgitation Echo

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  13. 06:19

    Discussion of Low Risk Chest Pain with Dr. Ezra Amsterdam

    Uploaded January 2019

  14. 00:40

    ECMO Wet to Wet Connection

    Uploaded January 2019

  15. 04:47

    ECMO Veno-Arterial Cannulation

    Uploaded January 2019

  16. 00:37

    ECMO Increasing Speed

    Uploaded January 2019

  17. 00:52

    ECMO Circuit Initiation

    Uploaded January 2019

  18. 01:19

    ECMO Chatter Improving with Fluid Bolus

    Uploaded January 2019

  19. 07:04

    Transvenous Pacemaker

    Uploaded October 2018

  20. 00:59

    Jugular Venous Distension for CHF

    Uploaded June 2018

  21. 25:06

    ECG Course: de Winter’s, Wellen’s, and ST Elevation in aVR

    Uploaded March 2018

  22. 06:36

    De Winter's T Wave

    Uploaded August 2017

  23. 20:43

    ECG Course: The Terrible T Waves

    Uploaded August 2017

  24. 01:39

    C3: Tachyarrhythmias (Visual Summary)

    Uploaded June 2017

  25. 29:11

    Tachyarrhythmias Lecture

    Uploaded June 2017

  26. 08:49

    ECG Course: ECG of WPW

    Uploaded May 2017

  27. 38:33

    ECG Course: Chest Pain

    Uploaded March 2017

  28. 06:23

    C3: Chest Pain (Visual Summary)

    Uploaded March 2017

  29. 04:28

    Ultrasound of Aortic Dissection

    Uploaded February 2017

  30. 10:22

    ECG in Pulmonary Embolism

    Uploaded October 2016

  31. 01:04

    Dual Sequential Defibrillation

    Uploaded June 2016

  32. 07:20

    ECG in Syncope

    Uploaded February 2016

  33. 06:54

    Ultrasound of Pericardial Tamponade

    Uploaded December 2010

  34. 06:43

    Ultrasound of Regional Wall Motion Abnormalities

    Uploaded December 2010

  35. 00:21

    Right Ventricular Hypertrophy

    Uploaded November 2010

  36. 03:52

    Chest Pain Choice - A Patient Encounter

    Uploaded November 2010

  37. 13:33

    Calculating the HEART Score for the Advanced Clinician

    Uploaded November 2010

  38. 00:21

    Aortic Regurgitation Echo

    Uploaded November 2010

  39. 00:23

    Moderate Tricuspid Regurgitation

    Uploaded November 2010

  40. 00:21

    Severe D Sign

    Uploaded November 2010

  41. 00:21

    Mitral Regurgitation Echo

    Uploaded November 2010

  42. 00:25

    Ultrasound Pericardial Effusion

    Uploaded November 2010

  43. 00:25

    Ultrasound Pericardial Effusion with Tamponade

    Uploaded November 2010

  44. 00:23

    McConnell's Sign

    Uploaded November 2010

  45. 01:20

    Bedside Epinephrine Drip

    Uploaded January 2010

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Jacob Avila explains the difference between A-lines and B-lines on lung ultrasound.

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Kendall A G., M.D. -

I am an old retired guy who didn't have US available when I was a young pup. Do the B lines relate to B lines on a CXR? What causes these? The big question is always WHY. If you explain WHY, they will be much easier to remember. The B lines look like pleural artifacts...perhaps like there is slight pleural fluid that is distributed with slight irregularity. The A lines look like tight reverberations or echos..perhaps between the parietal and visceral pleura. But what causes these? Thank you.

Victor U. -

The B Lines do equate to the Kerley B lines on the CXR: they are perpendicular interlobular septa, extending from the visceral pleura. They are accentuated by fluid within adjacent alveolar or interstitial tissue when these tissues undergo pathology. We all have some, but in disease states, there need to be more than 3 in more than 2 lung zones to count as pathological. Seen in pneumonia, ARDS, APO, pulmonary fibrosis, contusion.....

The A lines don't equate to the Kerley A lines on the CXR: these ones are reverberation artefact between the US probe and the plural line, as it reflects sound waves so effectively, the machine interprets multiples of the distance initially measured.

B lines obliterate A lines- you should never see the two of them together.

Hope this helps.

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