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Remote Ischemic Preconditioning in ad Hoc Percutaneous Coronary Interventions

2014-08-27 03:12:22 | BioPortfolio

Summary

Elective percutaneous coronary intervention (PCI) is associated with troponin release in approximately one third of cases. Myocardial necrosis may result from downstream embolization of atheromatous material, coronary side-branch occlusion and may involve ischemia/reperfusion injury. The investigators hypothesized that a single remote ischemic preconditioning cycle would reduce peri-procedural troponin release.

Description

Elective percutaneous coronary intervention (PCI) is associated with troponin release in approximately one third of cases, which is a sensitive and specific marker of myocyte necrosis. Myocardial necrosis may result from downstream embolization of atheromatous material, coronary side-branch occlusion and may involve ischemia/reperfusion injury. A number of studies have demonstrated that procedure-related troponin release is associated with subsequent cardiovascular events and a worst prognosis, especially in those patients with the most marked elevation in troponin concentration.

Recently, 3 cycles of 5-minute ischemia followed by 5-minute reperfusion of the upper extremities were shown to reduce troponin release in elective PCI. However, this ischemic preconditioning (IPC) protocol requires 30 minutes and is of limited use in the context of PCI at the time of initial cardiac catheterization (ad hoc coronary intervention).

Since experimental evidence suggests that IPC is a graded than an "all-or-nothing" phenomenon, and even a short, single IPC cycle may have protective effects in the myocardium, the investigators hypothesized that patients undergoing ad hoc coronary intervention would have reduced peri-procedural troponin release if subjected to a single, remote IPC cycle, between diagnostic catheterization and coronary intervention.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment

Conditions

Coronary Artery Disease

Intervention

Remote Ischemic Preconditioning

Location

Athens Euroclinic
Athens
Attica
Greece
11521

Status

Not yet recruiting

Source

Cardiovascular Research Society, Greece

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:12:22-0400

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Medical and Biotech [MESH] Definitions

Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.

Direct myocardial revascularization in which the internal mammary artery is anastomosed to the right coronary artery, circumflex artery, or anterior descending coronary artery. The internal mammary artery is the most frequent choice, especially for a single graft, for coronary artery bypass surgery.

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A complication of INTERNAL MAMMARY-CORONARY ARTERY ANASTOMOSIS whereby an occlusion or stenosis of the proximal SUBCLAVIAN ARTERY causes a reversal of the blood flow away from the CORONARY CIRCULATION, through the grafted INTERNAL MAMMARY ARTERY (internal thoracic artery), and back to the distal subclavian distribution.

A congenital coronary vessel anomaly in which the left main CORONARY ARTERY originates from the PULMONARY ARTERY instead of from AORTA. The congenital heart defect typically results in coronary artery FISTULA; LEFT-SIDED HEART FAILURE and MITRAL VALVE INSUFFICIENCY during the first months of life.

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