[Acute peripheral arterial occlusive disease].

Area of Science:

• Vascular Surgery
• Emergency Medicine
• Diagnostic Imaging

Background:

• Acute lower limb ischemia presents a significant risk of limb loss (10-30%) and mortality (15-30%).
• Understanding the causes, primarily embolism (70-80%) and thrombosis (20-30%), is crucial for effective management.
• Timely diagnosis and intervention are paramount in this vascular emergency.

Observation:

• Initial clinical examination is key to diagnosing acute ischemia, localizing occlusions, and assessing patient impact.
• Subtle findings and atypical symptoms can complicate diagnosis, necessitating advanced imaging.
• Ankle-brachial index and color duplex sonography are standard noninvasive tests; digital subtraction angiography remains the reference standard.

Findings:

• Incomplete ischemia, indicated by preserved sensation and motor function, may be managed with anticoagulation and delayed revascularization.
• Complete limb ischemia, marked by paralysis or anesthesia, suggests impending limb loss.
• Treatment strategies include heparin therapy, embolectomy, thrombectomy, and catheter-directed thrombolysis, tailored to patient status.

Implications:

• Severe ischemia mandates immediate surgical intervention.
• Interventional revascularization is the preferred approach for patients with contraindications to surgery or incomplete ischemia.
• Successful outcomes hinge on accurate clinical assessment and a rapid, multidisciplinary approach to revascularization.