What question did this study set out to answer?

To determine whether carotid endarterectomy provides clinical benefit over medical antiplatelet therapy in patients with asymptomatic internal carotid artery stenosis between 50% and 90%.

October 1, 1991StrokeOpen Access

Carotid surgery versus medical therapy in asymptomatic carotid stenosis. The CASANOVA Study Group.

View Full Paper

Ask AI

Bookmark

Discussion

Member takes

Implication

Randomized trial finds no significant difference in stroke or death between surgery and medical therapy in asymptomatic carotid stenosis, suggesting surgery is unnecessary for moderate narrowing.

Key Points

To determine whether carotid endarterectomy provides clinical benefit over medical antiplatelet therapy in patients with asymptomatic internal carotid artery stenosis between 50% and 90%.
Multicenter randomized trial allocating 410 patients with asymptomatic 50–90% internal carotid artery stenosis after angiography into immediate surgery (Group A, n=206) or deferred surgery triggered by disease progression or symptoms (Group B, n=160 unilateral, plus bilateral cases).
All patients received medical therapy consisting of 330 mg acetylsalicylic acid and 75 mg dipyridamole three times daily, with a minimum follow-up duration of 3 years.
The primary endpoints evaluated were ischemic neurologic deficits lasting longer than 24 hours or death related to surgery or stroke.
A total of 334 carotid endarterectomies were conducted across the cohort, with an overall angiography and procedural complication rate of 6.9%.
Statistical analysis revealed no significant difference between the immediate surgery and medical therapy groups regarding the incidence of neurologic deficits and mortality.

Cite This Study

A 1991 study studied this question.

synapsesocial.com/papers/6a7073a626a7f98052dcf423 https://doi.org/10.1161/01.str.22.10.1229

View Full Paper

Ask AI

Bookmark

October 1, 1991StrokeOpen Access

Carotid surgery versus medical therapy in asymptomatic carotid stenosis. The CASANOVA Study Group.

View Full Paper

Ask AI

Bookmark

Discussion

Member takes

Implication

Randomized trial finds no significant difference in stroke or death between surgery and medical therapy in asymptomatic carotid stenosis, suggesting surgery is unnecessary for moderate narrowing.

Key Points

To determine whether carotid endarterectomy provides clinical benefit over medical antiplatelet therapy in patients with asymptomatic internal carotid artery stenosis between 50% and 90%.
Multicenter randomized trial allocating 410 patients with asymptomatic 50–90% internal carotid artery stenosis after angiography into immediate surgery (Group A, n=206) or deferred surgery triggered by disease progression or symptoms (Group B, n=160 unilateral, plus bilateral cases).
All patients received medical therapy consisting of 330 mg acetylsalicylic acid and 75 mg dipyridamole three times daily, with a minimum follow-up duration of 3 years.
The primary endpoints evaluated were ischemic neurologic deficits lasting longer than 24 hours or death related to surgery or stroke.
A total of 334 carotid endarterectomies were conducted across the cohort, with an overall angiography and procedural complication rate of 6.9%.
Statistical analysis revealed no significant difference between the immediate surgery and medical therapy groups regarding the incidence of neurologic deficits and mortality.

Cite This Study

A 1991 study studied this question.

synapsesocial.com/papers/6a7073a626a7f98052dcf423 https://doi.org/10.1161/01.str.22.10.1229

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

View Full Paper

Ask AI

Bookmark