Related Experiment Video
Updated: May 2, 2026
08:22
In vitro Assessment of Myocardial Protection following Hypothermia-Preconditioning in a Human Cardiac Myocytes Model
Published on: October 27, 2020
2.6K
Ischemic preconditioning reduces apoptosis in open heart surgery
Jusuf Rachmat1, Sudigdo Sastroasmoro, Fransiscus D Suyatna
1Thoracic and Cardiovascular Surgery Division, Department of Surgery, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia.
Asian Cardiovascular & Thoracic Annals
|March 4, 2014
Summary
Ischemic preconditioning reduces cardiomyocyte apoptosis and improves cardiac performance after open heart surgery. This protective effect was observed through reduced caspase-3 activity and preserved cardiac function in piglets.
Area of Science:
- Cardiovascular Surgery
- Cell Biology
- Biochemistry
Background:
- Open heart surgery can lead to cardiomyocyte apoptosis.
- Assessing the protective role of ischemic preconditioning is crucial for improving patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of ischemic preconditioning in mitigating cardiomyocyte apoptosis post open heart surgery.
- To analyze the impact of ischemic preconditioning on cardiac function and biochemical markers.
Main Methods:
- A study involving 12 piglets divided into ischemic preconditioning and control groups.
- Analysis of cardiomyocyte apoptosis via transmission electron microscopy and caspase-3 activity.
- Measurement of biochemical markers (TNF-α, MDA, cTnI, lactate) and cardiac performance (echocardiography).
Main Results:
- Cardiomyocyte apoptosis was observed post-surgery, with significantly lower caspase-3 activity in the preconditioning group (p<0.05).
- Ischemic preconditioning preserved cardiac performance, including ejection fraction, cardiac index, and stroke volume index.
- While biochemical markers of injury were lower in the preconditioning group, differences were not statistically significant, except for lactate concentration.
Conclusions:
- Cardiomyocyte apoptosis is a consequence of open heart surgery.
- Ischemic preconditioning demonstrates a significant role in reducing apoptosis and enhancing cardiac performance.
- The findings suggest ischemic preconditioning as a protective strategy against myocardial injury during cardiac surgery.
