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

NCT02845167 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 21

Last updated 2016-07-27

No results posted yet for this study

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.

Conditions

  • Aortic Aneurysm, Abdominal
  • Surgery

Interventions

OTHER

Preoperative exercise

Patients will perform 3 consecutive days of 60 min submaximal cycling exercise at a moderate exercise intensity. During the 60 min of exercise, patients will be provided with three equally spaced 3min rest periods

Sponsors & Collaborators

  • University of Kent

    collaborator OTHER

  • Medway NHS Foundation Trust

    lead OTHER

Principal Investigators

  • Katharine Richardson · Medway Maritime NHS

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
FACTORIAL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-09-30
Primary Completion
2015-05-31
Completion
2015-05-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02845167 on ClinicalTrials.gov