Atherectomy for infrainguinal peripheral artery disease
Lawrence A Garcia1, Sean P Lyden
1Section of Interventional Cardiology, St. Elizabeth's Medical Center, Tufts University School of Medicine, Boston, Massachusetts 02135, USA. lawrence.garcia@caritaschristi.org
Summary
Atherectomy, specifically the SilverHawk Plaque Excision System, shows promise for treating peripheral arterial occlusive diseases, offering competitive patency rates. Further research is needed to refine its use and assess long-term outcomes.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Medical Devices
Background:
- Percutaneous transluminal angioplasty (PTA) and stent implantation are standard treatments for arterial occlusive diseases.
- Atherectomy theoretically offers advantages over PTA by reducing arterial wall injury and restenosis rates.
- Previous atherectomy devices have not demonstrated significant long-term benefits compared to PTA alone.
Purpose of the Study:
- To evaluate the effectiveness and outcomes of the SilverHawk Plaque Excision System for femoropopliteal and infrainguinal lesions.
- To compare the SilverHawk device's performance against conventional PTA and stenting.
- To identify areas for future research regarding atherectomy device utilization.
Main Methods:
- Analysis of prospective registries and observational studies, including the TALON registry.
- Focus on patient outcomes such as patency rates and freedom from target lesion revascularization.
- Assessment of adjunctive procedures like PTA and stenting in conjunction with atherectomy.
Main Results:
- The SilverHawk Plaque Excision System demonstrated positive results in registries for femoropopliteal and infrainguinal lesions.
- Reduced need for adjunctive PTA and minimal use of adjunctive stenting were observed.
- Competitive 6-month and 12-month patency rates were reported, with 80% freedom from target lesion revascularization at 12 months in the TALON registry.
Conclusions:
- The SilverHawk Plaque Excision System shows potential as an effective treatment for peripheral arterial occlusive diseases.
- Further research is required to determine optimal use, distal protection strategies, and definitive long-term outcomes.
- The study highlights the need for continued investigation into atherectomy devices for vascular interventions.
Related Concept Videos
01:27Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
01:23Peripheral Artery Disease V: Postoperative Nursing Management
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
01:26Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
01:30Peripheral Artery Disease I: Introduction
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
01:25Hemodialysis I: Introduction
Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
01:21Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...