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The Pneumatic Tourniquet Technique for Endoscopic Radial Artery Harvest; Does it Affect Patient Hemodynamics?

Ischemic Heart Disease Clinical Trial

Official title:
The Pneumatic Tourniquet Technique for Endoscopic Radial Artery Harvest; Does it Affect Patient Hemodynamics?

Clinical Trial Summary

This study aims to investigate the effect of the pneumatic tourniquet technique on the patients' hemodynamics; heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP).

Clinical Trial Description

Coronary artery bypass graft surgery (CABG) is the most common cardiac surgical procedure. Radial artery of the non-dominant hand with better ulnar collaterals is preferred over the saphenous vein because of long term patency of the radial artery. Radial artery is the preferred second or third arterial conduits for vessels with sub occlusive stenosis. There are two techniques of radial artery harvesting; open and endoscopic techniques. Endoscopic radial artery harvesting (ERAH) is increasing and it is possible but the evidence regarding its safety is scarce. ERAH is cosmetically better than the open technique. ERAH technique is performed after applying a tourniquet over the distal arm proximally to the elbow. Allen test will be done first and if the hand has a good blood supply through the ulnar artery, the tourniquet pressure is increased 75-100 mmHg over the systolic pressure and the tourniquet time is kept under one hour and the left radial artery will be endoscopically harvested. During the time of tourniquet inflation, there is ischemia of the forearm with subsequent cellular ischemic changes like; cellular acidosis, cellular edema, and activation of cellular apoptosis. On deflating the tourniquet, there is reperfusion of the limb and development of ischemic / reperfusion injury with a subsequent increase of inflammatory mediators and reactive oxygen species (ROS). These changes may be associated with some hemodynamic instability that might be dangerous, especially in patients with ischemic heart disease (IHD). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05349773
Study type Observational
Source Mansoura University
Contact
Status Completed
Phase
Start date May 19, 2022
Completion date August 1, 2022
View Details
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