Detailed outcome as follows:
- Immediate clinical success: It was defined from the first available clinical follow-up subsequent to the procedure. Success is determined by an increase of at least one clinical category of chronic limb ischemia from baseline. Those patients who had actual tissue loss must have advanced at least two clinical categories and reach the level of claudication to be considered improved.
- Late clinical success: It was defined from the recent follow-up and by the presence or absence of a subsequent procedure to that limb.Success is defined as either no change or an improvement in limb status (from the first procedure clinical follow-up), whereas failure is defined as a worsening in limb status. If a second procedure is performed on the same limb, clinical follow-up for that side concludes at that point because future changes in clinical limb status may be attributable to the second procedure. If the second procedure involves the originally stented segment, then the initial procedure on that limb is classified as a failure. If however, the second procedure is to different artery or to an arterial segment proximal or distal to the original stent (within the same anatomic artery), that limb is censored and classified as a success up to the date of …show more content…
The criterion for success is stenosis < 50%. Failure is defined as progression to stenosis > 50% or a repeat procedure performed on that segment. If a second procedure is performed on the same anatomic artery proximal or distal to the index stent, that artery is censored and classified as a success up to the date of the new procedure. Percent stenosis was determined by comparing the minimal luminal diameter within the stented segment with the diameter of normal adjacent artery using hand-held