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A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century.[1][2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a single grid:
- Blood pressure
- Aortic pressure
- Ventricular pressure
- Atrial pressure
- Ventricular volume
- Electrocardiogram
- Arterial flow (optional)
- Heart sounds (optional)
The Wiggers diagram clearly illustrates the coordinated variation of these values as the heart beats, assisting one in understanding the entire cardiac cycle.[1]
- ^ a b c Mitchell, Jamie R.; Wang, Jiun Jr (2014-06-01). "Expanding application of the Wiggers diagram to teach cardiovascular physiology". Advances in Physiology Education. 38 (2): 170–175. doi:10.1152/advan.00123.2013. ISSN 1043-4046. PMC 4056172. PMID 24913453.
- ^ Wiggers, Carl (1915). Circulation in Health and Disease. Philadelphia, PA: Lea & Febiger.