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Effect of Preoperative Exercise on Postoperative Outcome in AAA Patients: Pilot Study

Surgery Clinical Trial

Official title:
The Effect of Preoperative Exercise on Postoperative Outcome in AAA Patients: Pilot Study

Clinical Trial Summary

Basic animal research has demonstrated that exercise training can protect the myocardium from ischemia-reperfusion injury through several biological mechanisms . This effect of exercise training may be beneficial in the perioperative period when cardiac complications may arise. However, exercise induced cardioprotection is lost completely within 18 days of stopping the training program. This finding from animal research will be used to test the hypothesis that 3 days of consecutive exercise with the last bout conducted within the last 24/48 hours prior to surgery, will have a cardioprotective effect . Specifically, exercise has been shown to protect cardiac myocytes against reperfusion induced oxidative stress and mitochondria against reperfusion induced damage. This exercise mediated cardioprotection is observed in short moderate duration ischemia (i.e. 5-20 min) and moderate to severe (i.e.20-60 min) ischemic insults. The effects of exercise induced cardioprotection have only been investigated at cell level and it has not been shown whether this will translate into a reduction in postsurgical reperfusion injury and associated complications. To study this potential cardioprotective effect the investigators will aim to recruit patients who have a high risk of receiving reperfusion injury during surgery. Specifically, the investigators will recruit abdominal aortic aneurysm patients where the risk of heart complications is high. There is also currently no evidence in the published literature with regard to the effect of preoperative supervised exercise.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Intervention Model: Factorial Assignment, Masking: Single Blind (Caregiver), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02845167
Study type Interventional
Source Medway NHS Foundation Trust
Contact
Status Completed
Phase N/A
Start date September 2011
Completion date May 2015
View Details
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