Search Results
Results 51 - 100 of 1336
1 2 3 4 5 6 7 8 9 10 >
Shiokawa Yuichi - - 2012
Progressive regurgitation of the left atrioventricular valve (AV) remains a major postoperative problem in the repair of atrioventricular septal defect (AVSD). The aim of this study was to review a case series of AVSD repair and reoperation for significant left AV valve regurgitation from this institution. Forty-nine patients underwent initial ...
Lee Jenny J - - 2012
Initial TransAtlantic Inter-Society consensus (TASC) II classification has been shown to influence the patency of stented femoral and popliteal arteries. Although several studies have shown the effect of the number of runoff vessels on the durability of infrainguinal angioplasty without stenting, the influence of tibial vessel runoff on the patency ...
Domínguez-Rodríguez Alejandro - - 2012
OBJECTIVE: Human urotensin-II (UII) is considered the most potent endogenous vasoconstrictor discovered to date, although the precise mechanism activated downstream of its receptor UTS2R in blood vessels remains elusive. The aim of this study was to determine the role of the store operated Ca(2+ )entry (SOCE) signaling pathway in UII-induced ...
Paddenberg Renate - - 2012
Aims Alveolar hypoxia acutely elicits contraction of pulmonary arteries leading to rise in pulmonary arterial pressure (PAP) and shifting blood to better ventilated areas of the lung. The molecular mechanisms underlying this hypoxic pulmonary vasoconstriction (HPV) are still incompletely understood. Here, we investigated the role of succinate dehydrogenase (SDH; synonymous ...
Price Joel - - 2012
The introduction of effective and durable leaflet repair techniques have enabled repair of the regurgitant aortic valve. Aortic valve repair is favored to avoid the placement of a prosthesis that the patient will likely outgrow. Furthermore, repair has the potential to reduce the incidence of prosthesis-related complications, including endocarditis, thromboembolism, ...
Chaldakov George Nikov - - 2011
In humans, adipose tissue is partitioned into 2 large depots (subcutaneous and visceral), and many small depots associated with internal organs, e.g. heart, blood vessels, major lymph nodes, pancreas, prostate gland, ovaries. Since the adipose's Big Bang was explored with the discovery of leptin in 1994, adipose tissue has been ...
Ishak Marleine - - 2011
We report undescribed pulmonary findings in a child with mucolipidosis II (ML-II). Children with ML-II bear significant pulmonary morbidity that may include extensive pulmonary fibrosis, persistent hemosiderosis as well as pulmonary airway excrescences as they reach preschool age. Pediatr Pulmonol. © 2011 Wiley Periodicals, Inc.
Takahashi Shirushi - - 2011
ABSTRACT: We report 2 cases in which catheter guide wires were useful for detection of vascular injury site. Case 1: A woman was died of hemorrhagic shock after being slashed at the extremities, but the vessels were so collapsed that it was not easy to find the injured site. After ...
Leake P A - - 2011
The development of minimally invasive techniques for abdominal aortic aneurysm (AAA) repair and the establishment of specialized centres have resulted in improved patient outcomes. This study examines open AAA repair at a non-specialized centre where advanced techniques are not practised. We conducted a retrospective analysis on a cohort of 83 ...
Bruemmer Dennis - - 2011
Angiotensin II infusion in mice promotes abdominal and thoracic aortic aneurysms, which provides a feasible approach to study the mechanisms of these two distinct diseases.
Thakor Avnesh S - - 2011
OBJECTIVES: With increasing experience, endovascular aortic aneurysm repair (EVAR) has been extended to patients with less suitable aorto-iliac anatomy in an attempt to reduce peri-operative mortality. However, more complex EVAR procedures may take longer and can result in higher rates of complications, additional interventional procedures and more frequent radiological imaging, ...
Carrillo Jd - - 2011
This study was performed to characterize the normal blood flow of the canine testis and to measure the peak systolic velocity (PSV), end-diastolic velocity (EDV), resistive index (RI) and pulsatility index (PI) of testicular arteries weekly during a period of 6 months in five healthy Beagle dogs and to evaluate whether ...
Erić Mirela - - 2011
The objective of this study was to determine precise localization and external diameter of the lower abdominal wall perforators as well as to investigate some vascularity differences between the same parts of perfusion zones II and III according to Hartrampf perfusion zones. The study was performed on 10 fresh cadavers ...
Liu Bin - - 2011
This study was to determine whether the endothelium of mouse major arteries produces prostacyclin (PGI(2)), and if so, to determine how PGI(2) affects vasomotor reactivity and whether cyclooxygenase-1 (COX-1) contributes to PGI(2) synthesis. Abdominal aortas, carotid and femoral arteries were isolated from wild-type mice and/or those with COX-1 or -2 ...
Rankin J Scott - - 2011
Similar to mitral repair, newer methods of aortic valve reconstruction are achieving excellent outcomes with an 85% to 90% freedom from valve-related complications at 10 years. The goal of this review is to illustrate these newer and more stable techniques of aortic valve repair. Most patients with aortic insufficiency from ...
Katsumi Yuji - - 2011
OBJECTIVES: Bleeding in the floor of the mouth during implant surgery is attributed to arterial injuries in the sublingual space: clinicians may injure the submental and sublingual arteries, which originate from the facial and lingual arteries, respectively. This study aimed to clarify the three-dimensional courses of submental and sublingual arteries ...
Clavel Marie-Annick - - 2011
The objectives were to compare different Doppler echocardiographic methods for the measurement of prosthetic valve effective orifice area (EOA) following transcatheter aortic valve implantation (TAVI) and to determine the factors influencing the EOA of transcatheter balloon expandable valves. Previous studies have used different methods for the measurement of the valve ...
Majewska Natalia - - 2011
This study is a case report regarding a possible problem of high radiation dose during stent-graft implantation. Before deciding on how to treat an aneurysm (stent grafting or traditional surgery), possible complications such as difficult anatomical conditions and diseases of the aorta and iliac arteries should be considered to avoid ...
Uchida Haruhito A HA Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY 40536-0509, - - 2011
Abdominal aortic aneurysms (AAAs) are associated with fragmentation of extracellular matrix during development of aortic dilation and rupture. Therefore, it is important to identify specific protease systems involved in extracellular matrix degradation during AAA formation. The present study determined the contribution of the urokinase system to AAA formation and rupture. ...
Knowles Martyn - - 2011
Abstract Purpose: To evaluate the effects of type II endoleaks and sac pressurization on stent-graft displacement following endovascular aneurysm repair (EVAR). Methods: Experimental silicone infrarenal aneurysm (6-cm) models were "treated" with a Talent stent-graft deployed with 20-mm proximal and distal landing zones. Inflow and outflow vessels were created as part ...
Sucandy Iswanto - - 2011
Endovascular aneurysm repair (EVAR) has well documented advantages over traditional open repair and has been widely adopted as the alternative treatment modality for abdominal aortic aneurysm. However, endoleaks specifically type II can be a significant problem with this technique leading to aortic sac expansion and potential rupture. A large number ...
Gopal K - - 2011
Atherosclerosis will lead to stenosis/occlusion in the lumen of various arteries of living body. This can lead various conditions including myocardial infarction, cerebral infarction/aneurysm and peripheral artery disease. Ang II is believed to be an important regulatory peptide involved in maintaining cardiovascular homeostasis and pathogenesis of various cardiovascular diseases. Matrix ...
Franz Randall W - - 2011
Type II endoleaks have been viewed as the Achilles' heel of endovascular repair of abdominal aortic aneurysms. This report describes a unique etiology to this common challenge and our approach to endovascular repair.
Partridge J B - - 2011
The cristal artery is an occasional finding, being visible in around 3% of coronary angiograms, arising from the proximal right coronary artery (RCA) and passing downwards and forwards through the muscle of the crista superventricularis. It supplies a variable volume of the superior interventricular septum, and can contribute to collateralization ...
Boezeman R P E - - 2011
Background: Near-infrared spectroscopy (NIRS) is a noninvasive technique that allows continuous monitoring of the regional hemoglobin oxygen saturation (rSO(2)) index. We evaluated its application to survey perioperative lower limb perfusion. Methods: A total of 10 patients (7 men, aged 71) were monitored during abdominal surgery for aortic aneurysms. The rSO(2) ...
Marchiori Andre - - 2011
Abstract Purpose: To define predictive factors for endoleak type II (EL-II) based on quantifiable factors in the imaging studies of patients undergoing endovascular aneurysm repair (EVAR). Methods: The data on 208 consecutive patients (137 men; mean age 75.2 years, range 62-84) who underwent EVAR between the years 2003 and 2008 were ...
Klisch Joachim - - 2011
INTRODUCTION: The Woven Endobridge (WEB II) device (Sequent Medical, Inc., Aliso Viejo, CA, USA) is an intra-saccular, oblate, braided-wire embolization device designed to provide flow disruption at the aneurysm neck-parent artery interface. The purpose of this study was to evaluate the acute and short-term performance of the WEB II device ...
Spalice Alberto - - 2011
We describe a six-month-old girl with microcephaly, developmental delay, truncal hypotonia, left pyramidal signs, partial seizures and myoclonic spasms, born to a feverish mother. MRI showed bilateral vascular lesions in the territory of the middle cerebral arteries, prevalent in the right hemisphere, together with hypoplasia of the posterior part of ...
Numminen Jussi - - 2011
Background Computed tomographic angiography (CTA) has become the primary non-invasive method for detection of cerebral artery aneurysms in many neurovascular centers. Purpose To compare MR-angiography at a 3.0 tesla (3T) scanner to CTA in the detection of unruptured intracranial aneurysms. Material and Methods CTA and 3T MRA data from 60 ...
Gupta Vivek - - 2011
PURPOSE: To test the efficacy and viability of poly (lactic-co-glycolic acid) (PLGA) microspheres encapsulating an inclusion complex of prostaglandin E(1) (PGE(1)) and 2-hydroxypropyl-β-cyclodextrin (HPβCD) for pulmonary delivery of PGE(1) for treatment of pulmonary arterial hypertension (PAH), a disease of pulmonary circulation. METHODS: PLGA-based microparticulate formulations of PGE(1)-HPβCD inclusion complex or ...
Boeckh-Behrens T - - 2011
PROBLEM: High resolution, non-contrast imaging of both cerebral veins and arteries by use of gradient echo T2 star weighted angiography (SWAN) is a new method for susceptibility-weighted imaging with short acquisition times. We assessed the potential of this sequence for the depiction of both cerebral veins and arteries. METHODS: 15 ...
Condliffe Robin R Pulmonary Vascular Disease Unit, Royal Hallamshire Hospital, Sheffield, UK. - - 2011
Echocardiography is widely used in the investigation of patients with suspected SSc-associated pulmonary arterial hypertension (SSc-PAH). We investigated whether CT pulmonary angiography (CTPA) provides additive diagnostic value. Data for 89 consecutive patients with suspected SSc-PAH undergoing echocardiography, CTPA and right heart catheterization were reviewed. Pulmonary artery diameter (dPA) and ascending ...
Tauras James M - - 2011
A young woman with a mechanical mitral valve and prosthetic mitral stenosis underwent multiple imaging modalities (including transthoracic ECHO, fluoroscopy, and two-dimensional transesophageal ECHO) to determine the cause of her stenosis. Only three-dimensional transesophageal echocardiography demonstrated the full size and extent of an obstructing mass on the strut and sewing ...
Findeiss Laura K - - 2011
Degenerative aneurysms of the thoracic aorta are increasing in prevalence; open repair of descending thoracic aortic aneurysms is associated with high rates of morbidity and mortality. Repair of isolated descending thoracic aortic aneurysms using stent grafts was introduced in 1995, and in an anatomically suitable subgroup of patients with thoracic ...
Chappell M A MA Oxford Centre for Functional MRI of Brain, University of Oxford, John Radcliffe Hospital, Headington, Oxford, United Kingdom. - - 2011
The accuracy of cerebral blood flow (CBF) estimates from arterial spin labeling (ASL) is affected by the presence of both gray matter (GM) and white matter within any voxel. Recently a partial volume (PV) correction method for ASL has been demonstrated (Asllani et al. Magn Reson Med 2008; 60:1362-1371), where ...
Park Sang Woo - - 2011
To evaluate the etiology of unusual manifestation of hemoperitoneum and the efficacy of transcatheter arterial embolization (TAE). A retrospective review of patients at three hospitals was performed. A total of 12 patients (M:F = 5:7, mean age: 48) had massive hemoperitoneum without evidence of an intramuscular hematoma on CT (n = 10) or US ...
Shyu Kou-Gi - - 2011
Resistin may play a major potential role in vascular remodelling and may contribute to atherogenesis. However, the role of VSMC (vascular smooth muscle cell)-derived resistin in neointimal formation is not well understood. We hypothesize that endogenous resistin derived from VSMCs may contribute to neointimal formation after vascular injury. VSMCs from ...
Ogata J - - 2011
J. Ogata, H. Yamanishi and H. Ishibashi-Ueda (2011) Neuropathology and Applied Neurobiology37, 40-55 Role of cerebral vessels in ischaemic injury of the brain This review discusses the pathological changes in the heart and vessels underlying brain ischaemic injury, with a major focus on atherosclerotic disease of the brain induced by ...
Stewart Donald K - - 2011
Permanent endovascular stenting is gradually becoming recognized as a safe and efficacious method for treating a variety of arterial diseases. The literature on its application in trauma care is sparse, although indications for usage continue to evolve. We retrospectively reviewed all penetrating extremity trauma treated with endovascular therapy at our ...
Nowak D - - 2011
Background: The area of vascular supply of particular coronary arteries is directly linked to the varying typology of the coronary vasculature. This factor may have a significant influence on the coronary vessel diameters. To date there has been no published research that analyses the relationship between the type of coronary ...
Chatfield Doris A DA Division of Anaesthesia, Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, - - 2011
Endothelin-1 (ET-1) is a potent vasoconstrictor and is thought to be responsible for secondary ischemia and vasogenic edema after traumatic brain injury (TBI). Both CSF and plasma concentrations have been shown to be increased after TBI, but there is little evidence to confirm an intracranial site of production. Using paired ...
Locatelli Chiara - - 2011
OBJECTIVES: Determine whether valve morphology, pulmonary annulus diameter, aortic/pulmonic annulus ratio, balloon-to-annulus ratio (BAR), pre-pulmonary balloon valvuloplasty (PBV), Doppler gradient, and residual Doppler gradient are independent predictors of immediate and long-term results after PBV in dogs as in humans. ANIMALS, MATERIALS AND METHODS: Retrospective study. Medical records of dogs that ...
Yamanaka Kazunori - - 2011
Traumatic intracranial aneurysms are rare, usually occur as a result of traffic accidents, and are associated with high rates of morbidity and mortality. A 12-year-old boy was admitted for treatment of cerebral hemorrhage in the left frontal lobe, 3 months after a traffic accident. Angiography revealed an intracranial aneurysm of ...
Khaki Amir Afshin - - 2011
Axillary artery is one of the most important arteries of the upper limb, which is a continua- tion of the subclavian artery. It begins at the lateral border of the first rib and ends at the inferior border of the teres major where it becomes the brachial artery. Axillary artery ...
Esmaeilzadeh Maryam - - 2011
Congenital aortic valve atresia is usually part of a developmental anomaly usually called 'hypoplastic left-heart syndrome'. To the best of our knowledge, most reported cases of aortic atresia have been associated with hypoplasia of the ascending aorta, of the left ventricle, and of the mitral valve. We report a patient ...
Andreou Andreas Y - - 2011
The internal thoracic artery (ITA) is considered to be the optimal conduit for surgical coronary artery revascularization. Variations in ITA anatomy are relatively common and may impact surgical results. The ITA usually arises from the intrascalenic (first) part of the subclavian artery (SCA) and, occasionally, from the interscalenic (second) part. ...
Yang Xudong X Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke's and Papworth Hospitals, Cambridge, United - - 2011
Mutations in the bone morphogenetic protein type II receptor gene (BMPR-II) are the major cause of heritable pulmonary arterial hypertension (PAH). Although both endothelial and smooth muscle cell BMPR-II dysfunction have been seen to contribute to pulmonary hypertension in vivo, little is known about the impact of BMPR-II mutation on ...
Feliciano David V - - 2010
Significant changes in the management of patients, with possible or documented injuries to peripheral arteries, have occurred over the last 20 years. Based on recent military experience, it is likely that the use of tourniquets by civilian emergency medical services systems will increase. Evaluation in the emergency center will continue ...
Harb Z - - 2011
In lower extremity trauma, it is routine to check the neurovascular status of the affected limb. Failure to recognise a vascular injury can have catastrophic consequences for the patient. The frequent observation of the distal pulses at regular intervals after a traumatic knee dislocation is absolutely mandatory for the early ...
Gerlach Travis - - 2010
WoundStat (WS) (TraumaCure, Bethesda, MD) is a topical hemostatic agent that effectively stops severe hemorrhage in animal models. To the best of our knowledge, no survival study has been conducted to ensure long-term product safety. We evaluated vascular patency and tissue responses to WS in a swine femoral artery injury ...
1 2 3 4 5 6 7 8 9 10 >