ECG (main): Difference between revisions

No edit summary
No edit summary
 
(4 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{Adult top}} [[ECG (peds)]]
{{Adult top}} [[ECG (peds)]]
==Measurement==
==Measurement==
[[File:Grid.png|thumb]]
''All these measures are valid for the standard paper speed of 25 mm/Sec''
''All these measures are valid for the standard paper speed of 25 mm/Sec''
*1 small box = 1mm = 0.04 sec = 40 miliseconds
*1 small box = 1mm = 0.04 sec = 40 miliseconds
Line 33: Line 32:
==Segments & Intervals==
==Segments & Intervals==
[[File:SinusRhythmLabels.svg|thumb]]
[[File:SinusRhythmLabels.svg|thumb]]
[[File:ConductionsystemoftheheartwithouttheHeart-en.png|thumb|Conduction system of the heart.]]
[[File:Grid.png|thumb]]
*[[ST Elevation]]
*[[ST Elevation]]
*[[ST Depression]]
*[[ST Depression]]
Line 45: Line 46:
==Hypertrophy/Enlargement==
==Hypertrophy/Enlargement==
{{Cardiac hypertrophy DDX}}
{{Cardiac hypertrophy DDX}}
 
{{Heart block DDX}}
==AV Blocks==
[[File:Second degree heart block.png|thumb|Types of second degree AV block]]
{{AV block types}}
 
==Bundle and Fascicular Blocks==
*[[Right Bundle Branch Block]]
*[[Left Bundle Branch Block]]
*[[Left Anterior Fascicular Block]]
*[[Left Posterior Fascicular Block]]
 
==Premature Beats==
*[[Premature atrial contraction]]
*[[Premature junctional complex]]
*[[Premature ventricular contraction]]


==See Also==
==See Also==

Latest revision as of 12:35, 14 May 2022

This page is for adult patients. For pediatric patients, see: ECG (peds)

Measurement

All these measures are valid for the standard paper speed of 25 mm/Sec

  • 1 small box = 1mm = 0.04 sec = 40 miliseconds
  • 5 small boxes = 1 big box = 5mm = 0.2 sec = 200 miliseconds
  • Standard 12 lead ECG duration = 10 seconds
Interval Time(s) Boxes
PR 0.12 - 0.20 3-5
QRS 0.06 - 0.10 1.5-2.5
QTc <0.44 N/A

Primary Analysis

Segments & Intervals

SinusRhythmLabels.svg
Conduction system of the heart.
Grid.png

Waves

Hypertrophy/Enlargement

Cardiac Hypertrophy and Enlargement

Differential includes ischemic events, electrolyte abnormalities, and medication overdoses in addition to rheumatologic conditions[1][2]

Types of second degree AV block

AV blocks

Bundle and Fascicular Blocks

Premature Beats

See Also

External Links

Videos

{{#widget:YouTube|id=LCFXZvnW3rg}} {{#widget:YouTube|id= vNc4Xhbjh9o}}

References

  1. Hampton, JR. The ECG in Practice (5th edition), Churchill Livingstone 2008.
  2. Wagner, GS. Marriott’s Practical Electrocardiography (11th edition), Lippincott Williams & Wilkins 2007.