Endovascular Coiling versus Surgical Clipping of Very Small Ruptured Anterior Communicating Artery Aneurysms.

Background: Endovascular coiling of anterior communicating artery (ACoA) aneurysms has evolved dramatically. Ruptured ACoA aneurysms are more likely to be smaller. We aimed to investigate the safety and efficacy of endovascular coiling of very small ruptured ACoA aneurysms compared with surgical clipping.

Fistula from Congenital Subclavian Artery to Azygos Vein with Congestive Heart Failure in an Adult.

Congenital arteriovenous communications arising from subclavian artery are very rare. We report the first case of multiple congenital arteriovenous fistulas between the right subclavian artery and azygos vein presenting with congestive heart failure.

Predicting intraprocedural rupture and thrombus formation during coiling of ruptured anterior communicating artery aneurysms.

Background: Intraprocedural rupture and thrombus formation are serious complications during coiling of ruptured intracranial aneurysms, and they more often occur in patients with anterior communicating artery (ACoA) aneurysms.

Objective: To identify independent predictors of intraprocedural rupture and thrombus formation during coiling of ruptured ACoA aneurysms.

Methods: Between January 2008 and February 2015, 254 consecutive patients with 255 ACoA aneurysms were treated with coiling.

Stent-assisted coiling versus coiling alone of ruptured anterior communicating artery aneurysms: A single-center experience.

Objective: Endovascular coiling of anterior communicating artery (ACoA) aneurysms has evolved; however, stent-assisted coiling of ruptured aneurysms remains controversial. We aimed to compare periprocedural complications, angiographic and clinical outcomes after stent-assisted coiling with coiling alone of ruptured ACoA aneurysms.

Methods: We performed a retrospective review of consecutive 222 patients with ruptured ACoA aneurysms treated with endovascular coiling within 7 days after ictus.

Smoking Associated with Increased Aneurysm Size in Patients with Anterior Communicating Artery Aneurysms.

Background: Hypertension and smoking are risk factors for aneurysm formation or rupture. We aimed to identify differences in aneurysm morphologies associated with hypertension or smoking in patients with anterior communicating artery (AcoA) aneurysms.

Methods: Between December 2007 and February 2015, 574 consecutive patients with AcoA aneurysms were identified from the Electronic Medical Record System.

Completely reversed flow in the vertebral artery does not always indicate subclavian steal phenomenon.

We evaluated the causes, differential diagnosis and clinical significance of completely reversed flow (CRF) in the vertebral artery (VA). Twenty-three patients diagnosed with CRF in the VA by Doppler ultrasound were studied retrospectively. CRF was divided into intermittent CRF and continuous CRF.

Bidirectional flow in the vertebral artery is not always indicative of the subclavian steal phenomenon.

Objective: To evaluate the causes of bidirectional flow in the vertebral artery detected by Doppler sonography and its differential diagnosis.

Methods: Twenty-nine patients with bidirectional flow in the vertebral artery were retrospectively studied. The vertebral artery parameters, including peak antegrade velocity (PAV), peak reversed velocity (PRV), maximum peak velocity (MPV), peak systolic velocity, resistive index (RI), and diameter, were measured.