Wiggers diagram

	WikiDoc Resources for Wiggers diagram
Articles
Most recent articles on Wiggers diagram Most cited articles on Wiggers diagram Review articles on Wiggers diagram Articles on Wiggers diagram in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Wiggers diagram Images of Wiggers diagram Photos of Wiggers diagram Podcasts & MP3s on Wiggers diagram Videos on Wiggers diagram
Evidence Based Medicine
Cochrane Collaboration on Wiggers diagram Bandolier on Wiggers diagram TRIP on Wiggers diagram
Clinical Trials
Ongoing Trials on Wiggers diagram at Clinical Trials.gov Trial results on Wiggers diagram Clinical Trials on Wiggers diagram at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Wiggers diagram NICE Guidance on Wiggers diagram NHS PRODIGY Guidance FDA on Wiggers diagram CDC on Wiggers diagram
Books
Books on Wiggers diagram
News
Wiggers diagram in the news Be alerted to news on Wiggers diagram News trends on Wiggers diagram
Commentary
Blogs on Wiggers diagram
Definitions
Definitions of Wiggers diagram
Patient Resources / Community
Patient resources on Wiggers diagram Discussion groups on Wiggers diagram Patient Handouts on Wiggers diagram Directions to Hospitals Treating Wiggers diagram Risk calculators and risk factors for Wiggers diagram
Healthcare Provider Resources
Symptoms of Wiggers diagram Causes & Risk Factors for Wiggers diagram Diagnostic studies for Wiggers diagram Treatment of Wiggers diagram
Continuing Medical Education (CME)
CME Programs on Wiggers diagram
International
Wiggers diagram en Espanol Wiggers diagram en Francais
Business
Wiggers diagram in the Marketplace Patents on Wiggers diagram
Experimental / Informatics
List of terms related to Wiggers diagram

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Wiggers diagram.

Red = aortic pressure
Blue = left ventricular pressure
Yellow = left atrial pressure.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

A Wiggers diagram is a standard diagram used in cardiac physiology.

The X axis is used to plot time, while the Y axis contains all of the following on a single grid:

Blood pressure
- Aortic pressure
- Ventricular pressure
- Atrial pressure
Ventricular volume
Electrocardiogram
Arterial flow (optional)
Heart sounds (optional)

By illustrating the coordinated variation of these values, it becomes easier to illustrate the relationship between these values in the cardiac cycle.

Etymology

It is named after Carl J. Wiggers. (The diagram is frequently incorrectly called a "Wigger's diagram". Although "Wiggers' diagram" would be grammatically correct, it is more frequently rendered "Wiggers diagram", with no apostrophe.)

Events

	Phase	EKG	Heart sounds	Aortic valve	Mitral valve
A	Atrial systole	P	S4*	closed	open
B	Ventricular systole - Isovolumetric/isovolumic contraction	QRS	S1 ("lub")	closed	closed
C1	Ventricular systole - Ejection 1	-		open	closed
C2	Ventricular systole - Ejection 2	T		open	closed
D	Ventricular diastole - Isovolumetric/isovolumic relaxation	-	S2 ("dub")	closed	closed
E1	Ventricular diastole - Ventricular filling 1	-	S3*	closed	open
E2	Ventricular diastole - Ventricular filling 2	-		closed	open