Read by QxMD icon Read


Gordhan Ajeet, Dickinson John
Aneurysms of the persistent trigeminal artery (PTA) trunk are exceptionally rare and have a high risk for rupture. Dual stent placement through each internal carotid and basilar artery for endovascular coil embolization of a fusiform aneurysm arising from the PTA has not been described in the literature. A 44-year-old female with a history of chronic headache was identified to have a fusiform aneurysm arising from medially coursing adult type, Saltzman type 3 PTA trunk. Sacrifice of the PTA trunk inclusive of the aneurysm was performed with dual stent placement through each basilar and internal carotid artery across their respective junctions with the PTA...
September 2016: Neurointervention
Yun Kyung La, Ji Hwa Kim, Kyung-Yul Lee
A 74-year-old female with acute cerebral infarction was treated with intravenous recombinant tissue plasminogen activator. Subsequent percutaneous transfemoral angiography and mechanical thrombectomy were performed due to a right middle cerebral artery occlusion, which was successfully recanalized. Two days after treatment, the patient complained of vague right abdominal pain and a laboratory test showed anemia. Abdominal computed tomography showed a right renal subcapsular hematoma. After conservative management, the patient was discharged without complications...
September 2016: Neurointervention
Jong Kook Rhim, Jin Pyeong Jeon, Jeong Jin Park, Hyuk Jai Choi, Young Dae Cho, Seung Hun Sheen, Kyung-Sool Jang
PURPOSE: The aim of this study was to assess the risk factors of prolonged hemodynamic instability (HDI) after carotid angioplasty and stenting (CAS). Herein, a simplified predictive scoring system for prolonged HDI is proposed. MATERIALS AND METHODS: Sixty-six patients who had CAS from 2011 to 2016 at a single institution were evaluated. Prolonged HDI was defined as systolic blood pressure >160 mm Hg or <90 mm Hg or heart rate <50 beats/min, lasting over 30 minutes despite medical treatments...
September 2016: Neurointervention
Duck-Ho Goh, Sung-Chul Jin, Hae Woong Jeong, Sam Yeol Ha
PURPOSE: Mechanical thrombectomy using a Solitaire stent has been associated with a high recanalization rate and favorable clinical outcome in intra-arterial thrombolysis. To achieve a higher recanalization rate for mechanical Solitaire thrombectomy, we used an intra-arterial low-dose booster tirofiban injection into the occluded segment after stent deployment. We report the safety and recanalization rates for mechanical Solitaire thrombectomy with a low-dose booster tirofiban injection...
September 2016: Neurointervention
Dong-Kyu Jang, David A Stidd, Sebastian Schafer, Michael Chen, Roham Moftakhar, Demetrius K Lopes
PURPOSE: We investigated whether a 3D overlay roadmap using monoplane fluoroscopy offers advantages over a conventional 2D roadmap using biplane fluoroscopy during endovascular aneurysm treatment. MATERIALS AND METHODS: A retrospective chart review was conducted for 131 consecutive cerebral aneurysm embolizations by three neurointerventionalists at a single institution. Allowing for a transition period, the periods from January 2012 to August 2012 (Time Period 1) and February 2013 to July 2013 (Time Period 2) were analyzed for radiation exposure, contrast administration, fluoroscopy time, procedure time, angiographic results, and perioperative complications...
September 2016: Neurointervention
Keun Young Park, Byung Moon Kim, Dong Joon Kim
PURPOSE: To compare clinical and angiographic outcomes between balloon-assisted (BAC) and stent-assisted coiling for internal carotid artery unruptured aneurysms (ICA-UA). MATERIALS AND METHODS: A total of 227 ICA-UA in 190 patients were treated with BAC (120 patients, 141 ICA-UA) or SAC (70 patients, 86 ICA-UA. We compared characteristics of patients and ICA-UA, and clinical and angiographic outcomes between groups. RESULTS: Aneurysm size and neck diameter were greater for SAC than in BAC, but aneurysm volume and coil packing density were not different between groups...
September 2016: Neurointervention
Gourav Goyal, Rambir Singh, Nikhil Bansal, Vimal Kumar Paliwal
PURPOSE: Knowledge of variations in the cerebral dural venous sinus anatomy seen on magnetic resonance (MR) venography is essential to avoid over-diagnosis of cerebral venous sinus thrombosis (CVST). Very limited data is available on gender difference of the cerebral dural venous sinus anatomy variations. MATERIALS AND METHODS: A retrospective study was conducted to study the normal anatomy of the intracranial venous system and its normal variation, as depicted by 3D MR venography, in normal adults and any gender-related differences...
September 2016: Neurointervention
Hyuk Won Chang, Shang Hun Shin, Sang Hyun Suh, Bum-Soo Kim, Myung Ho Rho
PURPOSE: The International Subarachnoid Aneurysm Trial (ISAT) revealed that in ruptured intracranial aneurysms (RA), endovascular coiling (EC) yields better clinical outcomes than neurosurgical clipping (NC) at 1 year. In unruptured aneurysms (UIA), EC is being increasingly used as an alternative to NC due to patients' preference. There is a lot of difference in treatment cost (EC vs. NC) between countries. There is one recently published study dealing with the comparative cost analysis only in UIAs in South Korea...
September 2016: Neurointervention
Yon Kwon Ihn, Bum-Soo Kim, Jun Soo Byun, Sang Hyun Suh, Yoo Dong Won, Deok Hee Lee, Byung Moon Kim, Young Soo Kim, Pyong Jeon, Chang-Woo Ryu, Sang-Il Suh, Dae Seob Choi, See Sung Choi, Jin Wook Choi, Hyuk Won Chang, Jae-Wook Lee, Sang Heum Kim, Young Jun Lee, Shang Hun Shin, Soo Mee Lim, Woong Yoon, Hae Woong Jeong, Moon Hee Han
PURPOSE: To assess patient radiation doses during cerebral angiography and embolization of intracranial aneurysms across multi-centers and propose a diagnostic reference level (DRL). MATERIALS AND METHODS: We studied a sample of 490 diagnostic and 371 therapeutic procedures for intracranial aneurysms, which were performed at 23 hospitals in Korea in 2015. Parameters including dose-area product (DAP), cumulative air kerma (CAK), fluoroscopic time and total angiographic image frames were obtained and analyzed...
September 2016: Neurointervention
Soon Bae Kim, Jong Sung Kim, Sang Jun Kim, Su Hee Cho, Dae Chul Suh
Medical congresses often held in highlands. We reviewed several medical issues associated with altitude stress especially while physicians have participated medical congress held in high altitude. Altitude stress, also known as an acute mountain sickness (AMS), is caused by acute exposure to low oxygen level at high altitude which is defined as elevations at or above 1,200 m and AMS commonly occurs above 2,500 m. Altitude stress with various symptoms including insomnia can also be experienced in airplane. AMS and drunken state share many common features in symptoms, neurologic manifestations and even show multiple microbleeds in corpus callosum and white matter on MRI...
September 2016: Neurointervention
Kuhyun Yang, Wonhyoung Park, Hae-Won Koo, Dae Chul Suh
Formation of de novo aneurysm from a junctional dilatation at the origin site of the posterior communicating artery (PcomA) has been rarely reported. In this case report, three females in sixth decades of age developed a de novo aneurysm from the junctional dilatation of the PComA with a tiny bleb-like lesion over 5 years after initial presentation.
March 2016: Neurointervention
Seul Kee Kim, Byung Hyun Baek, Tae Wook Heo, Woong Yoon
Acute ischemic stroke due to embolic occlusion of the middle cerebral artery (MCA) in patients with chronic ipsilateral internal carotid artery (ICA) occlusion is quite rare. Several previous reports demonstrated that intra-arterial (IA) thrombolytic therapy or aspiration thrombectomy using the cross-circulation technique via an alternative collateral pathway is feasible in acute stroke patients with an unfavorable direct route to the occluded sites. However, stent-retriever embolectomy via the cross-circulation approach has not been reported in the literature...
March 2016: Neurointervention
Seunguk Jung, Cheolkyu Jung, Yun Jung Bae, Byung Se Choi, Jae Hyoung Kim
The duplicated origin of vertebral artery (VA) is a very rare condition. It could be easily misdiagnosed as an arterial dissection on selective catheter angiography, especially in a patient with acute cerebellar infarction of unknown etiology. We report a patient with an acute cerebellar infarction and duplicated origin of the left VA, which was found during the selective catheter angiography.
March 2016: Neurointervention
Andrew K Johnson, Lee A Tan, Demetrius K Lopes, Roham Moftakhar
Progressive deconstruction is an endovascular technique for aneurysm treatment that utilizes flow diverting stents to promote progressive thrombosis by diverting blood flow away from the aneurysm's parent vessel. While the aneurysm thromboses, collateral blood vessels develop over time to avoid infarction that can often accompany acute parent vessel occlusion. We report a 37-year-old woman with a left distal posterior cerebral artery aneurysm that was successfully treated with this strategy. The concept and rationale of progressive deconstruction are discussed in detail...
March 2016: Neurointervention
Pouya Nazari, Manish K Kasliwal, Joshua T Wewel, Sumeet G Dua, Michael Chen
A 26-year-old male presented with delayed intracerebral hemorrhage from a ruptured distal middle cerebral artery pseudoaneurysm that followed a compound depressed skull fracture from years ago. The brain protrusion through the skull defect likely resulted in stretching and subsequent tearing of the arterial wall resulting in the pseudoaneurysm formation. No prior report of such a clinical occurrence exists in the literature. We highlight an unusual but treatable cause for intracerebral hemorrhage following surgery for traumatic brain injury...
March 2016: Neurointervention
Hairi Liu, Danbi Park, Sun Moon Hwang, Ga Young Lee, Ok Kyun Lim, Minjae Kim, Deok Hee Lee, Wonhyoung Park, Hae-Won Koo, Kuhyun Yang, Dae Chul Suh
PURPOSE: Day-care management of unruptured intracranial aneurysms can shorten hospital stay, reduce medical cost and improve outcome. We present the process, outcome and duration of hospital stay for the management of unruptured intracranial aneurysms via a neurointervention clinic in a single center during the past four years. MATERIALS AND METHODS: We analyzed 403 patients who were referred to Neurointervention Clinic at Asan Medical Center for aneurysm evaluation between January 1, 2011 and December 31, 2014...
March 2016: Neurointervention
Wonhyoung Park, Yunsun Song, Kye Jin Park, Hae-Won Koo, Kuhyun Yang, Dae Chul Suh
PURPOSE: Hemodynamic factors are considered to play an important role in initiation and progression of the recurrence after endosaccular coiling of the intracranial aneurysms. We made paired virtual models of completely coiled aneurysms which were subsequently recanalized and compared to identify hemodynamic characteristics related to the recurred aneurysmal sac. MATERIALS AND METHODS: We created paired virtual models of computational fluid dynamics (CFD) in five aneurysms which were initially regarded as having achieved complete occlusion and then recurred during follow-up...
March 2016: Neurointervention
Yudhi Adrianto, Ku Hyun Yang, Hae-Won Koo, Wonhyoung Park, Jung Cheol Park, Deok Hee Lee
PURPOSE: In the endovascular treatment of cerebral aneurysms, navigating a large-bore microcatheter for delivery of an open-cell stent can be challenging, especially in wide-necked bifurcation aneurysms. We were able to overcome this difficulty by parallel use of two microguidewires through the stent-delivery microcatheter. MATERIALS AND METHODS: From December 2014 to April 2015, we treated 15 patients with wide-necked bifurcation aneurysms. For stent delivery, we used a 300-cm 0...
March 2016: Neurointervention
Su Min Ha, Sang-Il Suh, Woo-Keun Seo, Hae Young Seol
OBJECTIVE: To evaluate progressive enhancement in the carotid arterial wall overlying plaque in the symptomatic side for patients with cerebrovascular symptoms until delayed phase using MDCTA. MATERIALS AND METHODS: Twenty-one patients (all men; ages, 49-82 years; mean, 67.8 ± 8.4 years) with recent stroke and severe extracranial carotid stenosis were retrospectively analyzed. Pre-, early- and delayed phase images of MDCTA were obtained, and Hounsfield units (HU) of carotid walls were measured...
March 2016: Neurointervention
Byung Moon Kim, Yong Sam Shin, Min Woo Baik, Deok Hee Lee, Pyoung Jeon, Seung Kug Baik, Tae Hong Lee, Dong-Hoon Kang, Sang-Il Suh, Jun Soo Byun, Jin-Young Jung, Kihun Kwon, Dong Joon Kim, Keun Young Park, Bum-Soo Kim, Jung Cheol Park, Seong Rim Kim, Young Woo Kim, Hoon Kim, Kyungil Jo, Chang Hyo Yoon, Young Soo Kim
PURPOSE: The purpose of this study was to assess the safety and early outcomes of the Pipeline device for large/giant or fusiform aneurysms. MATERIALS AND METHODS: The Pipeline was implanted in a total of 45 patients (mean age, 58 years; M:F=10:35) with 47 large/giant or fusiform aneurysms. We retrospectively evaluated the characteristics of the treated aneurysms, the periprocedural events, morbidity and mortality, and the early outcomes after Pipeline implantation...
March 2016: Neurointervention
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"