Wiggers diagram

Jump to: navigation, search
Wiggers diagram.

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

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

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:

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

Note that during isovolumetric/isovolumic contraction and relaxation, all the heart valves are closed. At no time are all the heart valves open.

  • S3 and S4 heart sounds are associated with pathologies and are not routinely heard.

Additional images


ECG

See also

External links




Linked-in.jpg