<qa>  How long will the cuff be placed around the left arm?The patients will be divided into two Groups. In Group 1, RIPS will be induced with three cycles of Inflation of a blood-pressure cuff on the left arm to 200 mmHg for 5 min., followed by 5 min. of reperfusion while the cuff is deflated. In controls Group 2, the cuff will be placed around the left arm without being inflated. 