Chief Perfusionist

June 1981 – December 2014

Children’s Mercy Hospitals And Clinics, Kansas City, MO

Chief Perfusionist supervising a staff of 10 (5 perfusionists and 5 perfusion assistants).  Responsibilities included open heart surgery perfusion, autotransfusion, ECMO, QC and maintenance responsibilities for point-of-care patient testing including blood gases, electrolytes, glucose, ACT equipment and cardiac homograft valve research.  Specific experience includes approximately 280 open-heart surgeries yearly (ages – newborn to adult), ~680 total ECMO cases.

Extracorporeal Technician

1968 to 1975

St. Luke’s Hospital,  Kansas City, MO

Extracorporeal Technician.  Responsibilities included open-heart surgery perfusion, chronic and acute hemodialysis, organ retrieval and preservation of kidneys for transplantation, hyperbaric oxygenation, ECG and EEG testing.

Perfusion Theory is an educational platform for the Oxygen Pressure Field Theory (OPFT). August Krogh’s theoretical concept of the oxygen pressure field is explained and then applied to clinical applications in perfusion practice.

Associate Editor Needed

Site founder and editor, Gary Grist RN CCP Emeritus, is seeking candidates for the position of Associate Editor for the website Perfusion Theory.

Perfusion Theory is a free, non-commercial, educational website open to anyone worldwide interested in perfusion science and lifestyle. This is a voluntary, uncompensated position requiring about three hours monthly.

The Associate Editor’s primary responsibilities will include working with the Editor to create and curate site content, contributing to the strategy and mission of the site, evaluating submissions to determine suitability, and supporting the Editor in the review process.

No site design skills are necessary. Appointment as the Associate Editor will be on or around 1 April 2023. For additional information or to apply for the position contact

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