Category: Cardiovascular

Measuring axis

https://youtu.be/Eh36Z8_oHfI In this video (scrub through the video to see chapters) 0:50 The “vector” for the heart’s activity 03:24 The chest (precordial) leads 04:18 The vectors for the frontal plane leads 10:10 Determining axis: Method 1 (more precise) 12:38 Measuring axis: Method 2 (less precise) 15:18 P Wave axis 19:39 QRS axis

Measuring intervals and voltage

https://youtu.be/FO-TR3V5Pk8 In this video (scrub through the video to see chapters) 00:12 Measuring intervals and voltages 00:32 Standard ECG Calibration 02:55 RR Interval 05:24 PR Interval 06:17 QRS Duration 10:08 QT Interval 13:48 Now let’s measure some voltages!

Normal sinus rhythm

https://youtu.be/QUHXcqWGQt0 In this video (scrub through the video to see chapters) 00:09 Normal sinus rhythm 01:03 Conduction through the heart during normal sinus rhythm 08:21 Think of heart rhythm as a relay race 10:50 Gap junctions: How cardiac cells communicate electrically 11:05 Systematic approach to interpreting the ECG 12:24 Five criteria for normal sinus rhythm 21:06 Two common misconceptions 22:12 References

Understanding the ECG

https://youtu.be/rynLo_vOW3U In this video (scrub through the video to see chapters) 00:37 Understanding the ECG—the electrical activity in the cell 03:22 The normal conduction pathway through the heart 06:06 The vectors for the different ECG leads 08:55 Setting up a grid system to map the ECG vectors 13:52 The depolarization wavefront through the heart 20:10 Repolarization through the heart 24:19 References

Ordering the ECG

https://youtu.be/qw6IgTgK7Ss In this video (scrub through the video to see chapters) 00:09 Ordering the ECG—indications to perform an ECG 06:18 Cost of an ECG 07:18 Ambulatory ECG monitoring and exercise testing

Secondary hypertension

Note: The first 1:15 of this video are pixelly. Many apologies!

Hypertension treatment

Hypertension

Recording the ECG

https://youtu.be/5-vIjfw36qU In this video (scrub through the video to see chapters) 00:09 Recording the ECG—placing leads 02:25 What the ECG recording looks like 06:03 Rhythm strip 08:15 Different kinds of ECGs 10:14 ECG quality and artifact 14:38 Formatting the ECG recording

ECG Shorts

You said, and we did! Past students provided us with feedback that we need to update our resources for ECGs and arrhythmias, and after many hours of labor, we are pleased to present you with the ECG Shorts video series. This series will take the student through a rapid progression of highly relevant material, beginning […]