compare between GLASS and WIFI Staging in predicting limb salvage in patients with chronic limb threatening ischemia ( CLTI) undergoing endovascular revascularization.
Peripheral arterial disease (PAD) is estimated to affect over 200 million people worldwide. These rates are expected to rise as increasing life expectancies continue to shift the population toward older age. At the most severe end of the disease spectrum, chronic limb-threatening ischemia (CLTI) affects 11% of patients with PAD and is associated with high rates of limb loss and mortality as well as high costs of care.(1) The Society for Vascular Surgery's WIfI (Wound, Ischemia, foot Infection) staging system was developed to classify threatened limbs using factors that affect amputation risk and clinical management in patients with chronic limb threatening ischemia . These include the extent of the wound, degree of ischemia, and severity of any foot infection. It has been validated as a predictor of limb salvage in peripheral artery disease.(2,3) The Global Vascular guidelines 'GVG "proposes a new Global Anatomic Staging System (GLASS), which is a new method of quantifying the anatomic severity of infrainguinal disease in patients with chronic limb-threatening ischemia. But it has not been used for predicting limb salvage apart from use as a tool in deciding the mode of intervention for patients with chronic limb-threatening ischemia (CLTI).
Study Type
OBSERVATIONAL
Enrollment
28
Percutaneous Trans lumenal Angioplasty
Technical Success
in - line arterial flow to the foot without any flow limiting dissection or residual stenosis \> 30% on completion intraoperative arteriography
Time frame: Baseline
Time to complete healing
Time to complete healing of the wound after revascularization, Debridement or minor amputation
Time frame: Baseline
Limb Salvage
freedom from major amputation above the foot level
Time frame: Baseline
Primary Patency
uninterrupted vessel patency with no procedure performed on the treated limb.
Time frame: Baseline
Assisted Primary Patency
the percentage of failing but still patent vessel undergoing elective intervention, included patients required revision of the revascularization before vessel occlusion occurs as prophylactic interventions to maintain patency.
Time frame: Baseline
Secondary Patency
an occluded artery that required intervention to restore patency.
Time frame: Baseline
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