Compensatory changes in atrial volumes with normal aging: is atrial enlargement inevitable?
Liza Thomas, MBBS, FRACP*,*,
Kate Levett, BEd (HME) Hons*,
Anita Boyd, BMedSc Hons*,
Dominic Y. C. Leung, MBBS, FRACP ,
Nelson B. Schiller, MD, FACC and
David L. Ross, MBBS, FRACP*
* Westmead Hospital, Sydney, Australia
Liverpool Hospital, Sydney, Australia
University of California, San Francisco, California, USA

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Figure 1 Diagrammatic representation of pulmonary vein flow pattern in young normal individuals (A) and old normal individuals (B). Although the peak velocity of forward diastolic velocity in young individuals is higher than old individuals, the area under the curve remains unchanged. The hashed lines represent equal areas in both systole and diastole.
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