Popliteal Artery Abnormalities Quiz

Play an AI-generated podcast conversation about this lesson

What is the cornerstone of therapy for Buerger disease?

Amputation

Arterial bypass surgery

Smoking cessation (correct)

Immunosuppressive therapy

Why is arterial bypass not typically feasible in Buerger disease?

Lack of distal targets (correct)

Poor response to bypass surgery

High risk of surgical complications

Presence of severe arterial blockages

What may indicate the need for amputation in Buerger disease?

Cellular immunity against arterial antigens

Elevated circulatory immune complexes

Specific humoral antiarterial antibodies

Persistent pain or gangrene (correct)

What happens if a patient with Buerger disease can stop smoking?

The disease becomes dormant Signup and view all the answers

Why is smoking cessation particularly difficult in patients with Buerger disease?

The disease causes psychological dependence on smoking Signup and view all the answers

Which imaging technique is particularly sensitive and can define areas of injury as well as areas of infarction in the brain?

Diffusion-weighted MRI Signup and view all the answers

What can Doppler spectral velocity analysis determine rapidly and with reasonable accuracy?

The degree of stenosis Signup and view all the answers

Which imaging technique can assess the degree of stenosis at the carotid bifurcation and provide information on the configuration of the aortic arch?

CTA Signup and view all the answers

What does CTA display that can assist in planning clamp placement and the extent of distal exposure necessary for carotid endarterectomy?

Calcifications Signup and view all the answers

Which imaging technique is often used for confirmation of duplex findings and planning interventional procedures?

CTA Signup and view all the answers

What is the principal indication for the Burgess technique?

Gangrene of several toes or the great toe Signup and view all the answers

Why is good blood supply needed for the Burgess technique?

To ensure proper healing of the incision Signup and view all the answers

What type of flap is used in the Burgess technique?

Posterior flap Signup and view all the answers

How are the metatarsal bones treated in the Burgess technique?

Cut shorter than those in the middle Signup and view all the answers

Does transmetatarsal amputation require a prosthesis?

No, it is not mandatory Signup and view all the answers

What is the mainstay of therapy for popliteal entrapment syndrome according to the text?

Open surgery Signup and view all the answers

What is the role of MRI and CT studies in the diagnosis of popliteal entrapment syndrome, based on the text?

They are most useful in confirming the diagnosis Signup and view all the answers

What is the purpose of open surgery in treating popliteal entrapment syndrome, as per the text?

To return the popliteal artery to its normal anatomic course Signup and view all the answers

What is notably absent in cases of popliteal entrapment syndrome, according to the text?

Atherosclerotic changes in the popliteal artery Signup and view all the answers

How can popliteal entrapment syndrome be treated surgically according to the text?

From a medial or posterior approach Signup and view all the answers

What is the purpose of selective intra-arterial infusion of thrombolytic agents?

To limit systemic effects while concentrating in the clot Signup and view all the answers

In the Burgess technique, what is the significance of the catheter inserted through a remote arteriotomy?

It allows high concentrations of thrombolytic agent in the clot Signup and view all the answers

What is the consequence of not performing an embolectomy within the first few hours?

The clot may become adherent and subsequent revascularization becomes less successful Signup and view all the answers

What role does thrombolysis play in cases of thrombosis on preexisting atherosclerotic lesions?

It reveals the underlying lesions that will require treatment Signup and view all the answers

What is one of the uses of intraoperative infusion of thrombolytic agents?

To aid in embolectomy Signup and view all the answers

What is the most common symptom of popliteal artery cystic degeneration?

Intermittent claudication Signup and view all the answers

Which medical sign involves the disappearance of the pedal pulses with knee flexion?

Ishikawa sign Signup and view all the answers

What imaging technique can be used to demonstrate the cyst within the popliteal artery wall, showing displacement of the arterial flow lumen?

Ultrasound Signup and view all the answers

What may appear only on lateral exposures in cases of popliteal artery cystic degeneration?

Arterial stenosis Signup and view all the answers

What is the recommended range of treatments for popliteal artery cystic degeneration, based on the text?

Simple cyst aspiration to cyst excision to excision and replacement of the affected arterial segment Signup and view all the answers

What is the primary goal of endovascular therapy?

To treat diseased arterial segments from within the vessel Signup and view all the answers

How is access to the arterial system typically established in endovascular therapy?

Percutaneously by inserting valved sheaths into the access vessel Signup and view all the answers

Which of the following is NOT a therapeutic maneuver that can be performed in endovascular therapy?

Open surgical procedures Signup and view all the answers

What has led to the expanded application of endovascular interventions to patients with certain disease characteristics?

Technologic advances in endovascular therapy Signup and view all the answers

Why is endovascular therapy more commonly used than open surgical therapy in many arterial beds?

As it is minimally invasive and reduces short-term morbidity and mortality Signup and view all the answers

What is the purpose of inserting valved sheaths into the access vessel in endovascular therapy?

To establish access to the arterial system Signup and view all the answers

Which of the following is a potential therapeutic maneuver in endovascular therapy?

Angioplasty using drug-coated balloons Signup and view all the answers

What guides the passage of steerable wires and catheters in endovascular therapy?

Fluoroscopic guidance Signup and view all the answers

Why are endovascular interventions now applied to patients with disease characteristics once thought to preclude such interventions?

'Continued technologic advances' Signup and view all the answers