Talk:Preload (cardiology)

The beginning of this article defines Preload as being both "the volume of blood present in a ventricle of the heart" and "the initial stretching of a single cardiac myocyte prior to contraction." This seems to me to be two different definitions. Can anyone with some expertise on this subject clarify this? Philfan22 07:41, 12 August 2007 (UTC)

While it is related to the volume of blood present in the ventricle of the heart, preload itself is actually referring to a pressure so I will edit it accordingly. 207.59.105.58 11:43, 15 September 2007 (UTC)

Though I understand that preload is most applicable to cardiology, I don't see why there isn't a more general definition and explination of preload. Preload refers to any striated muscle, not just cardiac myocytes. 151.197.65.51 (talk) 19:24, 23 March 2008 (UTC)Ashok

Calculation section is incorrect
It appears that the law of Laplace is (incorrectly) shown as a demonstration of how to calculate preload, when it in fact give the value for AFTERload. The stretch of the left ventricle walls can best be estimated by measuring pulmonary wedge pressure.

References https://www.cvphysiology.com/Cardiac%20Function/CF007.htm https://www.ncbi.nlm.nih.gov/books/NBK541109/ — Preceding unsigned comment added by MudPhudTLC (talk • contribs) 20:28, 6 October 2019 (UTC)

As of a moment ago, I have updated and corrected this section to reflect the ways in which preload is estimated, rather than how afterload is calculated. MudPhudTLC (talk) 21:48, 6 October 2019 (UTC)