39 Questions
What is the cornerstone of therapy for Buerger disease?
Smoking cessation
Why is arterial bypass not typically feasible in Buerger disease?
Lack of distal targets
What may indicate the need for amputation in Buerger disease?
Persistent pain or gangrene
What happens if a patient with Buerger disease can stop smoking?
The disease becomes dormant
Why is smoking cessation particularly difficult in patients with Buerger disease?
The disease causes psychological dependence on smoking
Which imaging technique is particularly sensitive and can define areas of injury as well as areas of infarction in the brain?
Diffusion-weighted MRI
What can Doppler spectral velocity analysis determine rapidly and with reasonable accuracy?
The degree of stenosis
Which imaging technique can assess the degree of stenosis at the carotid bifurcation and provide information on the configuration of the aortic arch?
CTA
What does CTA display that can assist in planning clamp placement and the extent of distal exposure necessary for carotid endarterectomy?
Calcifications
Which imaging technique is often used for confirmation of duplex findings and planning interventional procedures?
CTA
What is the principal indication for the Burgess technique?
Gangrene of several toes or the great toe
Why is good blood supply needed for the Burgess technique?
To ensure proper healing of the incision
What type of flap is used in the Burgess technique?
Posterior flap
How are the metatarsal bones treated in the Burgess technique?
Cut shorter than those in the middle
Does transmetatarsal amputation require a prosthesis?
No, it is not mandatory
What is the mainstay of therapy for popliteal entrapment syndrome according to the text?
Open surgery
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
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
What is notably absent in cases of popliteal entrapment syndrome, according to the text?
Atherosclerotic changes in the popliteal artery
How can popliteal entrapment syndrome be treated surgically according to the text?
From a medial or posterior approach
What is the purpose of selective intra-arterial infusion of thrombolytic agents?
To limit systemic effects while concentrating in the clot
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
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
What role does thrombolysis play in cases of thrombosis on preexisting atherosclerotic lesions?
It reveals the underlying lesions that will require treatment
What is one of the uses of intraoperative infusion of thrombolytic agents?
To aid in embolectomy
What is the most common symptom of popliteal artery cystic degeneration?
Intermittent claudication
Which medical sign involves the disappearance of the pedal pulses with knee flexion?
Ishikawa sign
What imaging technique can be used to demonstrate the cyst within the popliteal artery wall, showing displacement of the arterial flow lumen?
Ultrasound
What may appear only on lateral exposures in cases of popliteal artery cystic degeneration?
Arterial stenosis
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
What is the primary goal of endovascular therapy?
To treat diseased arterial segments from within the vessel
How is access to the arterial system typically established in endovascular therapy?
Percutaneously by inserting valved sheaths into the access vessel
Which of the following is NOT a therapeutic maneuver that can be performed in endovascular therapy?
Open surgical procedures
What has led to the expanded application of endovascular interventions to patients with certain disease characteristics?
Technologic advances in endovascular therapy
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
What is the purpose of inserting valved sheaths into the access vessel in endovascular therapy?
To establish access to the arterial system
Which of the following is a potential therapeutic maneuver in endovascular therapy?
Angioplasty using drug-coated balloons
What guides the passage of steerable wires and catheters in endovascular therapy?
Fluoroscopic guidance
Why are endovascular interventions now applied to patients with disease characteristics once thought to preclude such interventions?
'Continued technologic advances'
Test your knowledge of popliteal artery abnormalities with this quiz. Questions cover topics such as fibromuscular abnormality, cystic degeneration, arterial stenosis, and clinical symptoms.
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