Catheter-directed thrombolysis for acute upper extremity ischemia

Area of Science:

• Vascular Surgery
• Interventional Radiology
• Cardiovascular Medicine

Background:

• Acute upper extremity ischemia poses a risk of chronic disability if not treated promptly.
• Surgical interventions for this condition can be complex and challenging.
• Catheter-directed thrombolysis presents a potential alternative first-line treatment.

Purpose of the Study:

• To evaluate the efficacy of catheter-directed thrombolysis as a primary treatment for acute nontraumatic upper extremity ischemia.
• To assess the technical and clinical success rates of this minimally invasive procedure.
• To determine the potential for preventing surgical intervention in affected patients.

Main Methods:

• A retrospective study of 28 patients (Rutherford class I or IIa) treated between 2006 and 2010.
• Analysis of patient demographics, occlusion characteristics (location, length, cause), and thrombolysis duration.
• Assessment of technical success (96%), radiologic success (>95% clot lysis) (61%), and clinical success (68%).

Main Results:

• Successful clot lysis was achieved in 61% of patients, with an overall clinical success rate of 68%.
• The in-hospital amputation rate was 7%, with 93% amputation-free survival at six months.
• Complications included embolization, transient ischemic attack, splenic hematoma, and pseudoaneurysm.

Conclusions:

• Catheter-directed thrombolysis demonstrates effectiveness in over 60% of cases for extensive acute upper extremity ischemia.
• This endovascular approach can serve as a successful first-line treatment, potentially avoiding the need for surgery.
• The procedure offers a valuable option for limb salvage in acute upper extremity ischemia.