Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Potassium-induced cardioplegia

W A Gay1

  • 1Department of Surgery, New York Hospital-Cornell University Medical College, N.Y. 10021.

The Annals of Thoracic Surgery
|July 1, 1975
PubMed
Summary
This summary is machine-generated.

High-potassium cardioplegia reduces heart oxygen needs and phosphate depletion, improving survival during prolonged normothermic ischemia without observed adverse effects.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mitral valve repair in the elderly: operative risk for patients over 70 years of age is acceptable.

The Journal of cardiovascular surgery·2003
Same author

Influence of internal mammary artery grafting and completeness of revascularization on long-term outcome in octogenarians.

The Annals of thoracic surgery·2002
Same author

Does the extent of proximal or distal resection influence outcome for type A dissections?

The Annals of thoracic surgery·2001
Same author

Quality of life after aortic valve replacement at the age of >80 years.

Circulation·2000
Same author

Options for repair of a bicuspid aortic valve and ascending aortic aneurysm.

The Annals of thoracic surgery·2000
Same author

Reappraisal of coronary endarterectomy for the treatment of diffuse coronary artery disease.

The Annals of thoracic surgery·1999
Same journal

A Health Tracking Application Leads to An Avid Cyclist Being Diagnosed with ALCAPA at 52 years old, Warranting a Takeuchi Repair.

The Annals of thoracic surgery·2026
Same journal

Impact of preoperative and postoperative modern guideline-directed medical therapy on survival following coronary artery bypass grafting.

The Annals of thoracic surgery·2026
Same journal

Does prior percutaneous coronary revascularization negatively affect the outcomes of subsequent coronary artery bypass grafting?

The Annals of thoracic surgery·2026
Same journal

Lymph Node Dissection and Chylothorax - Balancing Oncologic Benefit Against Morbidity.

The Annals of thoracic surgery·2026
Same journal

Preserved Antegrade Pulmonary Blood Flow in Bidirectional Glenn: Outcomes and Considerations for Staged Palliation.

The Annals of thoracic surgery·2026
Same journal

Domo Arigato, Mr. Roboto.

The Annals of thoracic surgery·2026
See all related articles

Area of Science:

  • Cardiology
  • Cardiovascular Surgery
  • Biochemistry

Background:

  • Myocardial preservation during cardiac surgery is critical.
  • Normothermic ischemia poses challenges to cardiac energy metabolism.
  • High-potassium cardioplegia is a potential strategy for myocardial protection.

Purpose of the Study:

  • To evaluate the effects of high-potassium cardioplegia on myocardial oxygen requirements.
  • To assess the impact on high-energy phosphate depletion during ischemia.
  • To determine the association with survival rates in prolonged normothermic ischemia.

Main Methods:

  • Induction of cardioplegia using an osmotically balanced, high-potassium solution.
  • Monitoring of myocardial oxygen consumption.

Related Experiment Videos

  • Measurement of high-energy phosphate levels.
  • Assessment of cardiac survival during normothermic ischemia.

    • Main Results:

    • High-potassium cardioplegia was associated with reduced myocardial oxygen requirements.
    • The solution demonstrated a moderate slowing of high-energy phosphate depletion.
    • Increased survival rates were observed in hearts subjected to prolonged normothermic ischemia.

    Conclusions:

    • Osmotically balanced, high-potassium cardioplegia effectively reduces myocardial oxygen demand.
    • This cardioplegic solution offers partial protection against high-energy phosphate depletion.
    • It is linked to improved cardiac survival during extended normothermic ischemic periods with no apparent detrimental effects.