Related Experiment Video
Updated: Dec 22, 2025
10:27
Real-Time Assessment of Spinal Cord Microperfusion in a Porcine Model of Ischemia/Reperfusion
Published on: December 10, 2020
3.8K
Remote Ischemic Preconditioning in Spinal Cord Protection: A Surviving Porcine Study
Hannu-Pekka Honkanen1, Caius Mustonen1, Johanna Herajärvi1
1Research Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, Medical Research Center, Oulu, Finland.
Seminars in Thoracic and Cardiovascular Surgery
|May 8, 2020
Summary
Remote ischemic preconditioning (RIPC) offers spinal cord protection during thoracic aorta surgery. This method improved recovery from spinal cord ischemia (SCI) in a porcine model, showing faster functional improvement post-surgery.
Area of Science:
- Cardiovascular Surgery
- Neurology
- Ischemic Physiology
Background:
- Thoracic aorta repair can lead to spinal cord ischemia (SCI), necessitating protective strategies.
- Remote ischemic preconditioning (RIPC) is a promising organ protection method demonstrated in experimental settings.
Purpose of the Study:
- To evaluate the efficacy of RIPC in protecting the spinal cord from ischemia in a chronic porcine model.
Main Methods:
- Sixteen piglets were divided into RIPC and control groups.
- RIPC involved cycles of 5-minute ischemia and reperfusion using a blood pressure cuff.
- Spinal cord ischemia was induced via arterial ligation; monitoring included near-infrared spectroscopy (NIRS) and motor-evoked potentials.
Main Results:
- Higher NIRS values were observed in the RIPC group post-SCI (45.5 vs 41.5 at 4 hours, P=0.042).
- The RIPC group showed significantly higher nadir NIRS values (43.4 vs 38.9, P=0.014).
- The RIPC group exhibited improved motor function on postoperative day 1 (modified Tarlov score 3 vs 2, P=0.024).
Conclusions:
- RIPC demonstrates efficacy in mitigating spinal cord ischemia during thoracic aorta surgery in a porcine model.
- RIPC hastens functional recovery from spinal cord ischemia within the first postoperative day.
