WHF @ GW-ICC Joint Forum – Great Wall International Congress of Cardiology (GW-ICC) 2017 – Diastolic Function: the Importance of Untwisting and Suction in Diastolic Filling

It has become a tradition for world renowned cardiology associations to send delegations to GW-ICC congresses.

Cooperation with these international societies is not limited to their attendance at GW-ICC; GW-ICC also holds reciprocal academic sessions at the annual meetings of these eminent societies, for example GW-ICC @ ACC, GW-ICC @ AHA, and GW @ ESC, to introduce important Chinese academic research.

At the 28th GW-ICC in 2017, the World Heart Federation (WHF) held a Joint Forum. A video of one of these 2017 sessions is now available to view on the GW-ICC YouTube channel:

Diastolic Function: the Importance of Untwisting and Suction in Diastolic Filling

Presenter: John E. Sanderson, MA MD FRCP

Professor Sanderson discusses how:

  • Untwisting with recoil causes suction which is responsible for pulling the blood into the ventricle during early diastole.
  • The extent and speed of the recoil and hence suction depend on the force of the previous systolic contraction and the amount of stored energy, rate of myocyte relaxation, state of titins within the myocyte and the quality of the extracellular matrix.
  • Reduced suction, and hence reduced early diastolic filling is found in nearly all forms of heart failure and is associated with normal aging. Exercise may slow the rate of reduction.
  • Improving this fundamental property of the heart as a suction pump will require sophisticated therapy.
  • Systole and diastole are intimately connected and there is in essence one cardiac cycle. Isolated diastolic dysfunction is extremely rare.

Further information on the 29th GW-ICC, to be held October 11th -14th, 2018, in Beijing, China, is available on the congress website:


Cardiovascular Innovations and Applications (CVIA) is the official journal of the Great Wall International Cardiology Conference (GW-ICC). CVIA supports GW-ICC in its aims of leading the development of cardiovascular medicine in China, by introducing and promoting new concepts and technologies and strengthening and promoting cooperation amongst Chinese and international cardiology experts. CVIA is available on the IngentaConnect platform http://www.ingentaconnect.com/content/cscript/cvia and at https://cvia-journal.org/. Submissions may be made using Scholar One manuscripts at https:/mc04.manuscriptcentral.com/cvia-journal. There are no author submission or article processing fees.

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Conference website: http://www.gw-icc2017.org/en/1/index.jsp

Updated: November 26, 2020 — 12:39 pm