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Guo Zhen-Ni ZN Neuroscience Center, Department of Neurology, the First Norman Bethune Hospital of Jilin University, Chang Chun, - - 2014
Stroke of large-artery atherosclerosis and small-artery occlusion are two main subtypes of stroke according to TOAST classification. The underlying mechanisms of how these two subtypes affect dynamic cerebral autoregulation (dCA) might be heterogeneous, resulting in varied clinical conditions and outcomes. We therefore studied the pattern of dCA in these two ...
Rozen Todd D - - 2013
At present new daily persistent headache is just a group of conditions that are connected based on the temporal profile of their mode of onset. If new daily persistent headache is a true distinct syndrome like migraine then we need to start to define subtypes that have specific effective treatments ...
Neishi Yoji - - 2013
A 60-year-old man with a previous history of sirolimus-eluting stent implantation was admitted because of chest pain. Coronary angiography revealed nonsignificant in-stent luminal narrowing at the previously stented segment with an unusual linear peri-stent strut contrast staining. Frequency-domain optical coherence tomography showed a cavity at the segment connecting to the ...
Watanabe Takao - - 2013
No systematic study is yet available that focuses on the surgical anatomy of the superior petrosal vein and its significance during surgery for cerebellopontine angle meningiomas. The aim of the present study was to examine the variation of the superior petrosal vein via the retrosigmoid suboccipital approach in relation to ...
Barnett Christopher F CF Division of Cardiology, San Francisco General Hospital, University of California, San Francisco, San Francisco, CA 94110, - - 2013
Antiretroviral therapy has greatly increased longevity for individuals with human immunodeficiency virus (HIV) infection. About 0.5% of patients with HIV infection develop moderate to severe pulmonary arterial hypertension, which is several thousand times higher than the incidence of idiopathic pulmonary arterial hypertension. As more than 30 million individuals are chronically ...
Pashapour Ali A Ali Pashapour, Associate Professor, Departments of Neurology, Imam Reza Teaching Hospital, School of Medicine,Tabriz University of Medical Sciences, Tabriz, - - 2013
Objectives: Intravenous thrombolytic therapy has established acceptable results in treating ischemic stroke. However, there is little information on treatment outcome especially in different subtypes. The aim of current study was to evaluate early and intermediate prognosis in intravenous thrombolytic therapy for acute ischemic stroke subtypes. Methodology: Forty eligible patients (57.5% ...
Porter Kristi M KM Department of Pulmonary, Allergy, and Critical Care, Emory University School of Medicine/Atlanta Veterans Affairs Medical Center Medicine, Atlanta, Georgia, - - 2013
Pulmonary arterial hypertension (PAH) is a progressive disease characterized by increased pulmonary arterial resistance and vessel remodeling. Patients living with human immunodeficiency virus-1 (HIV-1) have an increased susceptibility to develop severe pulmonary hypertension (PH) irrespective of their CD4+ lymphocyte counts. While the underlying cause of HIV-PAH remains unknown, the interaction ...
George M Patricia MP Department of Immunology, School of Medicine, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15261. - - 2013
Pulmonary arterial hypertension (PAH) is increased in HIV, but its pathogenesis is not fully understood. Nonhuman primates infected with simian immunodeficiency virus (SIV) or SIV-HIV chimeric virus (SHIV) exhibit histologic changes characteristic of human PAH, but whether hemodynamic changes accompany this pathology is unknown. Repeated measurements of pulmonary artery pressures ...
Zhang Xiao-Yong - - 2012
Objectives- The purpose of this study was to explore the value of the transthoracic echocardiographic suprasternal view in the diagnosis of patent ductus arteriosus subtypes. Methods- Sixty-five patients with a patent ductus arteriosus were examined using transthoracic echocardiographic suprasternal and parasternal views before ductus arteriosus closure. Diameters of the aortic ...
Jung J S - - 2012
The present study was aimed to compare the hemodynamic flow characteristics of LIMA radial artery composite sequential bypass grafting and with single LIMA and saphenous vein sequential bypass grafting performed by off-pump coronary artery bypass grafting (OPCAB). Between March 2007 and February 2008, 121 OPCAB patients were prospectively divided into ...
Karl Tom R - - 2012
Tetralogy of Fallot (TOF) is an index lesion for all paediatric and congenital heart surgeons. In designing an appropriate operation for children with TOF, the predicted postoperative physiology must be taken into account, both for the short and long term. A favourable balance between pulmonary stenosis (PS) and pulmonary insufficiency ...
Mailleux P - - 2012
Single coronary artery is a very rare entity. We describe a very unusual subtype of this anomaly in which the right coronary artery arises from the mid-portion of the left anterior descending artery. MDCT allowed diagnosis of this non pathogenic variant and excluded any significant coronary stenosis.
Everett T R TR Department of Fetal Medicine, Rosie Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, - - 2012
To assess the relationship between uterine artery Doppler pulsatility index (PI) and maternal global arterial stiffness and aortic stiffness in women at high a priori risk of preeclampsia in the late second trimester of pregnancy. A prospective cohort study was performed. 99 women were recruited from the high-risk obstetric ultrasound ...
Szwast Anita - - 2012
Objectives: We sought to determine whether the presence or absence of aortic obstruction impacts cerebrovascular resistance in fetuses with single ventricle (SV) congenital heart disease (CHD). Methods: Pulsatility indices (PI) were recorded for the middle cerebral artery (MCA) and umbilical artery (UA) from 18 to 40 weeks gestation in 59 ...
Lefebvre Jessica - - 2012
OBJECTIVE: To compare the feasibility of two transabdominal approaches of first-trimester uterine artery Doppler and to evaluate the correlation with pulsatility index (PI) in the second-trimester. METHODS: This was a prospective longitudinal Doppler study of the uterine arteries at 11-13 and 21-22 weeks' gestation. Transabdominal ultrasound and color Doppler were ...
Vedmedovska Natalija - - 2012
Objectives- The purpose of this study was to determine whether a low splenic artery pulsatility index (PI) and reduced flow through the left portal vein are involved in redistribution of fetal growth restriction. Methods- Forty-two women with prenatally diagnosed intrauterine growth restriction of singleton fetuses were included. The next pregnant ...
Kent William D T - - 2012
Diffuse thoracic aortomegaly has conventionally been managed with a two-stage elephant trunk procedure, requiring prolonged circulatory arrest, with an inherent risk of major morbidity and mortality. Recently, to improve outcomes, several hybrid arch procedures have been proposed using off-pump techniques. We have adopted an alternative, single-stage hybrid strategy using cardiopulmonary ...
Durham Katherine A - - 2012
An often safer alternative to a traditional procedure.
Marjanović Ivan - - 2011
An altered perfusion of the optic nerve head has been proposed as a pathogenic factor in glaucoma. To evaluate changes of haemodynamic parameters in the retrobulbar arterial circulation after a decrease of elevated intraocular pressure (IOP) in patients with primary open angle glaucoma (POAG). Twenty-six patients were examined, 14 men ...
Mitilian Delphine - - 2011
Today, it is widely accepted that the pulmonary autograft should be reinforced when used as a root in the Ross operation. Various techniques using a vascular conduit have been reported. Herein is described an alternative technique, using a polyester mesh, that was applied in a 15-year-old boy with recurrent congenital ...
Paraskevas Kosmas I KI Department of Vascular Surgery, Red Cross Hospital, Athens, Greece. - - 2011
The recent guidelines by the American Heart Association/American Stroke Association (AHA/ASA) and several other associations recommended carotid artery stenting (CAS) as an alternative to carotid endarterectomy (CEA) for symptomatic patients (Class I; B). The term "alternative" may easily be misinterpreted as "equivalent" to justify the widespread use of CAS. However, ...
Khangura Sanjiv - - 2011
Clopidogrel has mostly replaced the use of ticlopidine due to its more favourable hematologic adverse event profile. Prasugrel is the newest thienopyridine approved for use in Canada. This case describes a patient who was diagnosed with an acute coronary syndrome and treated with bare metal stenting of his coronary artery. ...
Atiq Mehnaz - - 2011
Pulsus alternans is a well-recognized clinical entity in which alternating strong and weak pulses are detected. It usually is secondary to underlying myocardial failure. Murmur alternans (alternation in murmur intensity) has been described in aortic stenosis and a few right-sided lesions such as pulmonary hypertension and embolism. This report describes ...
Tanoue S - - 2011
SUMMARY: For effective transvenous embolization of DAVFs, it is important to place coils at the shunting venous pouch in the initial step of the procedure. When it was difficult to navigate a microcatheter to the shunting venous pouch due to the anatomic relationship of approach routes with targeted pouches, we ...
Bodily K D - - 2011
The use of stents for treatment of morphologically unfavorable, acutely ruptured aneurysms is avoided by most operators because of concerns about the risk of using dual antiplatelet therapy in the setting of acute SAH. Our aim was to review the literature regarding stent-assisted coil embolization of acutely ruptured intracranial aneurysms ...
Lv Xianli - - 2011
OBJECTIVE: The aim of the present retrospective study is to compare outcome of the endovascular treatment using the Enterprise stent in intracranial wide-necked saccular and dissecting aneurysms. METHODS: Forty-six patients with 50 complex intracranial aneurysms admitted between June 2009 and November 2010 were treated using Enterprise stents. Thirty-one aneurysms were ...
Gizewski E R - - 2011
BACKGROUND AND OBJECT: Cranial dural arteriovenous fistulas are commonly treated using an endovascular method. In comparison to intracerebral arteriovenous malformations, it is important to reach the venous part of these malformations to maintain a complete occlusion. Therefore, often the venous side is totally occluded using coils and/or glue. PATIENT AND ...
Hiraishi Tetsuya - - 2011
To determine whether transcranial motor-evoked potential (TCMEP) monitoring is useful for detecting blood flow insufficiency in the anterior choroidal artery (AChA) and reflects motor function during coil embolization of AChA aneurysms. We analysed MEP findings in seven patients who underwent coil embolization for AChA aneurysms. Corkscrew electrodes positioned at C3 ...
Somarouthu Bhanusupriya - - 2011
True renal artery aneurysms are rare. They are generally asymptomatic, however, a few may present with hypertension, rupture, or renal dysfunction secondary to distal embolization. Indications for intervention include aneurysm of ≥2.0 cm in diameter, renovascular hypertension, enlarging aneurysm, associated dissection /rupture, and aneurysms in women of child-bearing age/pregnancy. Endovascular ...
Kwak Byung Kook - - 2011
PURPOSE: To describe the design of a radiofrequency (RF) electrode catheter/guide wire system to allow endovascular coagulation of vessels. MATERIALS AND METHODS: A circuit was created by modifying an ordinary microcatheter. An electrically conductive ring was placed at a microcatheter tip, and an extension lead at the hub site. They ...
Liang Guobiao - - 2011
BACKGROUND AND PURPOSE: Internal carotid artery (ICA) large or giant saccular aneurysms is challenging for endovascular coil embolization and surgical clipping with a high recanalization and rebleeding rate. We report our results using Onyx in the endovascular treatment of ICA large or giant saccular aneurysms. METHODS: During 2008-2010, 5 patients ...
Killer M - - 2011
BACKGROUND AND PURPOSE: Beam-hardening artifacts in CTA can be greatly reduced by using metal-free coils for aneurysm embolization. We compared the embolic masses and remnants of experimental rabbit aneurysms coiled with hydrogel filaments by using DSA, CTA and histology. MATERIALS AND METHODS: Embolization of 12 rabbit bifurcation aneurysms was performed ...
Brinjikji W - - 2011
BACKGROUND AND PURPOSE: Endovascular therapy has increasingly become an acceptable option for treatment of unruptured aneurysms. To better understand the recent trends in the use of and outcomes related to coiling compared with clipping for unruptured aneurysms in the United States, we evaluated the NIS. MATERIALS AND METHODS: Hospitalizations for ...
Taussky P - - 2011
SUMMARY: Higher packing attenuation of coils in cerebral aneurysms is associated with a decreased recurrence rate. However, geometric relationships suggest that an additional coil may have very little effect on packing attenuation as aneurysm size increases. We mathematically evaluated the relationship between aneurysm size and incremental packing attenuation for coils ...
Brinjikji W - - 2011
BACKGROUND AND PURPOSE: Practice patterns vary widely among centers with regard to the treatment of unruptured aneurysms. The purpose of the current study was to correlate outcome data with practice patterns, specifically the proportion of unruptured aneurysms treated with neurosurgical clipping versus endovascular coiling. MATERIALS AND METHODS: Using the NIS, ...
Tsutsumi Masanori - - 2011
BACKGROUND:: The difference between coil-embolized ruptured and unruptured aneurysms with respect to intra-aneurysmal thrombus formation remains to be determined. OBJECTIVE:: We examined whether there was a difference between ruptured and unruptured coil-embolized aneurysms in the rate and timing of thrombus formation in the aneurysmal sac and discuss the effect of ...
Ghoneim Tarek P - - 2011
PURPOSE: We describe the presentation, endovascular management and functional outcomes of 15 patients with renal arterial pseudoaneurysm following open and laparoscopic partial nephrectomy. MATERIALS AND METHODS: An institutional review board approved, Health Insurance Portability and Accountability Act compliant retrospective review of a prospectively maintained database revealed that 7 of 1,160 ...
Lv Xianli - - 2011
BACKGROUND AND PURPOSE: In univariate survival analysis, coexisting aneurysms was associated with a significantly increased risk of hemorrhage in AVMs. We report here on our clinical experience with AVMs associated with arterial aneurysms that were managed by endovascular treatment. METHODS: To determine the incidence of associated aneurysms, the authors reviewed ...
Tevah J - - 2011
OBJECTIVE: To report our experience with Onyx HD-500(®) (Micro Therapeutics, Inc., Irvine, CA, USA) in the endovascular treatment of complex intracranial aneurysms as an alternative to treatment with platinum coils. PATIENTS AND METHODS: Between October 2003 and December 2007, 38 patients (20 female and 18 male) were selected for inclusion ...
Locatelli Anna - - 2011
Objective. To assess the duration of head-to-body interval using a 'two-step' approach to delivery that include waiting for the next contraction to deliver the shoulders; and its effect on umbilical artery pH and neonatal outcome. Study design. Prospective observational study on vaginal deliveries with singleton cephalic fetuses at term from June to ...
Brechtel Klaus - - 2011
The authors report two cases of stent-assisted embolization (SAE) in the aorta. In one case, SAE was performed for treatment of a pseudoaneurysm; the procedure consisted of stent placement and embolization with an AMPLATZER Vascular Plug and detachable coils through the stent struts. In the second case, SAE was performed ...
Leung H K - - 2011
Intracranial aneurysm in twins is a rare clinical disease entity. Only 15 cases have been described in the literature. We report on a pair of identical twins with intracranial aneurysms. One presented with subarachnoid haemorrhage; digital subtraction angiography showed a left posterior communicating artery aneurysm, which was treated by coiling. ...
Rastogi Neeraj - - 2011
Purpose: The aim of this article is to report the percutaneous management of a case of idiopathic segmental pulmonary artery aneurysm (SPAA) in a patient without pulmonary arterial hypertension. Materials and Methods: A 69-year-old female was referred for the evaluation of an incidental finding of a solitary right pulmonary nodule ...
Ferns Sandra P - - 2011
BACKGROUND AND PURPOSE: In aneurysms that are adequately occluded 6 months after coiling, the risk of late reopening is largely unknown. We assessed the occurrence of late aneurysm reopening and possible risk factors. METHODS: From January 1995 to June 2005, 1808 intracranial aneurysms were coiled in 1675 patients at 7 ...
Pukenas Bryan - - 2011
BACKGROUND:: The prevalence of intracranial aneurysms is approximately 2% with an annual rupture rate of 0.7%. OBJECTIVE:: We describe our initial feasibility experience using a new double-lumen balloon catheter for single-catheter balloon-assisted coil embolization of wide-neck intracranial aneurysms. METHODS:: Two patients with large wide-neck intracranial aneurysms were referred for endovascular ...
Lawson Matthew F - - 2011
BACKGROUND:: Incomplete coil occlusion is associated with increased risk of aneurysm recurrence. We hypothesize that intracranial stents can cause flow remodeling that promotes further occlusion of an incompletely coiled aneurysm. Objective: We studied our hypothesis by comparing the follow-up angiographic outcomes of stented versus non-stented incompletely coiled aneurysms. METHODS:: From ...
Shintani Tsunehiro - - 2011
A 37-year-old male patient presented with abdominal pain and diarrhea. Computed tomography showed a large superior mesenteric vein aneurysm. The patient had a history of Crohn's disease and underwent an ileocecal resection 7 years previously. A selective angiogram of the superior mesenteric artery revealed that a dilated branch of this ...
Matsumoto Hiroaki - - 2011
PURPOSE: Although minor head injury in childhood is a common occurrence and usually no complications, posttraumatic cerebral infarction has rarely been reported. Such infarction is characterized by occlusion of the lateral lenticulostriate artery. The authors report an atypical case of posttraumatic occlusion of the internal carotid artery (ICA) after minor ...
Lu Jun - - 2011
PURPOSE: Tiny intracranial aneurysms pose a significant therapeutic challenge for interventional neuroradiologists. The authors report their preliminary results of endovascular treatment of these aneurysms. METHODS: Between January 2002 and December 2009, 52 tiny intracranial aneurysms (defined as ≤3mm in maximum diameter) in 46 patients (22 men; mean age, 57.9years) were ...
Tapping C R - - 2011
Endovascular management of massive bilateral superior intercostal artery aneurysms following late surgical repair of juxtaductal coarctation of the aorta is described in a 40-year-old male patient. Both aneurysms were successfully treated by coil embolisation without the need for further surgical intervention.
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