Search Results
Results 351 - 400 of 1197
< 3 4 5 6 7 8 9 10 11 12 13 >
Prabhakar D - - 2001
A 12-year-old boy underwent pulmonary balloon valvotomy for isolated critical pulmonary stenosis. Following valvotomy, blood was found to be drawn into the syringe during deflation of the balloon, so a provisional diagnosis of a burst balloon was made. However, when the balloon catheter was withdrawn, the balloon got detached from ...
Klisch J - - 2001
A 49-year-old woman with a direct posttraumatic carotid cavernous fistula (CCF) was treated with detachable balloons via a transcarotid route. After the procedure, her intracranial bruit, conjunctival injection, and orbital congestion were cured, but the preexistent sixth nerve palsy deteriorated. CT showed one balloon positioned in the posterior portion of ...
Bennani R - - 2001
From December 1994 to May 1999, 487 patients underwent percutaneous transvenous mitral commissurotomy according to the Inoue balloon technique for tight mitral stenosis. In three cases, the Inoue balloon technique was not possible because the catheter balloon could not enter the mitral orifice and the double-balloon technique was performed instead. ...
Arafa O E - - 2001
OBJECTIVE: During open heart surgery, direct transthoracic insertion of the intra-aortic balloon pump (IABP) is an alternative to the routine transfemoral insertion especially in the presence of severe peripheral vascular disease. METHODS: Over 19 years (1980-1998), 646 patients were treated with IABP. In 24 of them, the balloon was inserted ...
Sierevogel M J - - 2001
BACKGROUND: Inhibition of matrix metalloproteinase (MMP) activity after balloon angioplasty by intraperitoneal injection of batimastat reduces late lumen loss by inhibition of constrictive remodeling. In the present study, we investigated whether the oral MMP inhibitor marimastat inhibits constrictive remodeling in favor of neutral or expansive remodeling. METHODS AND RESULTS: In ...
Balfour IC - - 2000
Balloon valvuloplasty provides optimal treatment for moderate and severe pulmonary valve stenosis. Dysplastic pulmonary valves may not respond to balloon dilation and frequently require surgical treatment. Balloon angioplasty with or without stenting is the preferred treatment of peripheral pulmonary stenosis.
Hehrlein C - - 2000
BACKGROUND: According to early clinical trials, vascular brachytherapy performed prior to or shortly after angioplasty is very effective in reducing restenosis rates. The purpose of this study was to investigate the effects of a novel radioactive catheter that allows simultaneous balloon angioplasty and beta-particle irradiation in the prevention of restenosis. ...
Midorikawa H - - 2000
OBJECTIVE: To evaluate the efficacy of a temporary balloon occlusion test for the prevention of paraplegia following transluminally placed endoluminal prosthetic grafts for descending thoracic aortic aneurysms. SUBJECTS AND METHODS: Two occlusion balloons were inserted via the brachial and femoral arteries and positioned in the proximal and distal neck of ...
Sideris E B - - 2000
Detachable balloon devices were applied in the occlusion of experimental ASDs in 20 piglets. The detachable balloons were made from Latex; the occluder balloon was placed on the left atrial side and required a floppy disk and counter-occluder(s) support from the right atrial side (17 experiments), or a second detachable ...
Goldstein J A - - 2000
OBJECTIVES: Balloon dilation of a luminal narrowing is classically performed with a single-diameter balloon. A new multidiameter balloon that allows three progressively larger, controlled radial expansion diameters of a single-balloon catheter (controlled radial expansion, CRE) has been developed. The purpose of this study was to test the diameter consistency and ...
Fukasaku K K Department Radiology, Shinshu University; Nagoya, - - 2000
For neck protection technique to prevent migration or protrusion of GDCs, non detachable balloons or microcatheters/wires are used. Non detachable balloon has good protective effect with great effect to the flow in the parent artery which is risky for safe procedure. Microcatheter has little effect to the parent flow and ...
Baker C M - - 2000
OBJECTIVES: We reviewed the management and outcome of patients experiencing pulmonary artery (PA) trauma during balloon dilation (BD). BACKGROUND: Balloon dilation of the PA is important in the management of peripheral pulmonary stenosis. Successful BD requires a controlled tear of the PA; excessive tearing can produce complications ranging from pseudoaneurysms ...
Galka E - - 2000
Although there is anecdotal evidence of balloon tamponade for posthysteroscopic acute uterine bleeding, a literature review disclosed no articles describing complications of the technique. In our patient, balloon tamponade for acute posthysteroscopic bleeding resulted in disseminated intravascular coagulation. In a second woman the procedure was successful.
Naehrlich L - - 2000
We report a 13-year-old boy with recessive dystrophic epidermolysis bullosa who had dysphagia due to esophageal stenosis. A balloon dilation was successfully performed under flexible endoscopic and fluoroscopic control. The early and long-term follow-up was characterized by the disappearance of dysphagia, weight gain, and improvement of his skin lesions.
Aslam M S - - 2000
A case of small coronary artery perforation during coronary intervention is presented. Continued leakage occurred despite prolonged intracoronary balloon inflation, in part probably related to the use of glycoprotein (GP) IIB/IIIA inhibitors. It was successfully managed by microcoil embolization without any sequel, helping avoid surgery in a high-risk patient. Cathet. ...
Ayabakan C - - 2000
Balloon atrioseptostomy is a life-saving procedure palliating certain congenital heart defects like transposition of the great arteries, right or left atrioventricular valve atresia, hypoplastic left heart syndrome, and pulmonary hypertension. Occasionally the Rashkind balloon septostomy technique may be ineffective in creating an adequate interatrial communication. We performed balloon dilatation of ...
Kim H S - - 2000
BACKGROUND: Neointimal formation in response to arterial injury is a major contributing element in restenosis after coronary balloon angioplasty and stenting. Endovascular irradiation has been reported to be effective in reducing restenosis. The purpose of this study was to investigate the effect of beta-emitting holmium-166 for the inhibition of neointimal ...
Akiba T - - 2000
We analyzed shortening patterns of the infundibulum in 11 patients with valvular pulmonary stenosis (PS) before and immediately after balloon valvuloplasty and at follow-up. The control group consisted of 32 patients with Kawasaki disease. The valvuloplasty was performed at the age of 5.8 +/- 2.9 (mean +/- SD) years and ...
Zhu W - - 2000
Atrial septal defect (ASD) size measurement is of paramount importance for the successful deployment of a transcatheter septal occluder. The stretched balloon diameter (SBD) has long been regarded as the gold standard for selection of the size of any device. Three-dimensional (3-D) transesophageal echocardiography (TEE) can visualize the overall structure ...
Arronis C - - 2000
We discuss a case in which a novel ultra-low-profile angioplasty balloon was used to provide wire backup by advancing the uninflated balloon nose into the entry point of a virtually occluded lesion. This enabled crossing of the lesion, and demonstrates how an improved balloon design can directly lead to improved ...
Chadow H L - - 2000
Vascular complications after removal of an intra-aortic balloon pump (IABP) have been reported to occur in up to 15% of patients. Vasoseal, a vascular hemostasis device (VHD), has been shown to be safe and effective in rapidly achieving hemostasis after a cardiac catheterization or percutaneous coronary intervention. We propose that ...
Sudhoff H - - 2000
We present a case of massive epistaxis caused by an internal carotid artery aneurysm. The initial treatment with endovascular balloon embolization failed as a result of balloon displacement. After rebleeding, the intracavernous aneurysm was treated with an endovascular detachable balloon embolization technique, which resulted in cessation of epistaxis. The different ...
Koch A - - 2000
We describe the results of balloon angioplasty in 5 infants with body weights of 850-2400 g. Three patients with severe aortic valve stenosis and two patients with isthmic coarctation of the aorta experienced relief of stenosis. Two patients with aortic valve stenosis developed thrombosis of the femoral artery; however, complete ...
Paç F A - - 2000
Children with valvar pulmonary stenosis have right ventricular diastolic filling abnormalities that may be due to either right ventricular hypertrophy or right ventricular outflow obstruction. In order to investigate the reason for this abnormality, 23 consecutive cases with pulmonary stenosis (mean age 7.94 +/- 3.33 years) undergoing transluminal pulmonary balloon ...
Weber H S - - 2000
We describe the first two successful cases of transcarotid balloon aortic valvuloplasty for critical aortic valve stenosis in the neonate utilizing continuous transesophageal echocardiographic guidance performed at the bedside. This method obviates the need for transporting a sick and hemodynamically unstable neonate to the catheterization laboratory and additionally reduces costs ...
Cohen L D - - 2000
BACKGROUND: Spontaneous transpyloric migration of a simple nasojejunal tube (NJT) can be expected in only one-third of insertions. Guidance of the tube by radiologic or endoscopic maneuvers is usually required. We believed that locating a 5-mL balloon near the tip of an NJT on which natural peristalsis could act would ...
Shiraishi I - - 2000
We report intraoperative balloon angioplasty for recurrent aortic coarctation in hypoplastic left heart syndrome. After bidirectional Glenn anastomosis, balloon angioplasty was performed via ascending aorta. Pressure gradient across the coarctation decreased from 45 to 8 mm Hg. Intravascular ultrasound revealed successful splits of thickened intima without any extensive dissection. Intraoperative ...
de Smet B J - - 2000
BACKGROUND: Arterial remodeling after balloon angioplasty has been recognized as a major determinant of restenosis. Perturbation of collagen metabolism might be important. After balloon injury, matrix metalloproteinase (MMP) expression is upregulated. We investigated the effect of Batimastat, a nonspecific MMP inhibitor, on late lumen loss, arterial remodeling, and neointima formation ...
Kohl T - - 2000
Prenatal alleviation of severe fetal aortic valve obstructions by percutaneous ultrasound-guided balloon valvuloplasty has been performed to improve the fate of affected fetuses. The purpose of this study was to analyze the current world experience of these procedures in human fetuses. Data from 12 human fetuses were available for analysis. ...
Richter F - - 2000
OBJECTIVES: To retrospectively assess the efficacy of balloon dilation, endopyelotomy/ureterotomy, and stenting alone in the management of benign ureteral strictures with intact or compromised vascular supply. METHODS: One hundred fourteen patients with benign ureteral strictures were assessed after at least a 2-year follow-up (range 2 to 16 years, mean 6.3). ...
Cheung Y F - - 2000
Over the years, management of critical pulmonary stenosis in young infants has evolved from surgical reconstruction of the right ventricular outflow tract and closed pulmonary valvotomy to transcatheter balloon valvoplasty. Our study aimed at evaluating how the changing policy for management had affected the immediate and long term outcomes of ...
Mori K - - 2000
PURPOSE: To simulate drug distribution during balloon-occluded arterial chemotherapy infusion (BOAI) for urinary bladder cancer using subtraction computed tomography (CT) with low-flow-rate arterial contrast injection (S-CTLA). METHODS: Ten patients with bladder cancer underwent S-CTLA, and the distribution of contrast agent during BOAI into both internal iliac arteries simultaneously was evaluated ...
Mourad F H - - 2000
Laparoscopic instrumentation of the common bile duct (CBD) via the transcystic route or through direct choledochotomy seems to be safe, but in rare cases, complications such as pancreatitis, bile duct damage, and hemorrhage from cystic artery may occur. We report an unusual complication with this approach. A 62-year-old man with ...
Anwar A - - 2000
Percutaneous balloon aortic valvuloplasty can be associated with significant vascular morbidity. Often, managing the access site prolongs the length of hospitalization. Three patients were successfully treated with percutaneous femoral arterial vascular surgery immediately after aortic valvuloplasty. These patients did not suffer early or late vascular complications. The access site care ...
Morishige K - - 2000
OBJECTIVE: This study was designed to examine whether or not adenovirus-mediated gene transfer of C-type natriuretic peptide (CNP) can prevent coronary restenotic changes after balloon injury in pigs in vivo. BACKGROUND: Gene therapy to prevent restenosis after percutaneous transluminal coronary angioplasty (PTCA) might be useful but requires a method applicable ...
Wang R - - 2000
OBJECTIVE: To observe the effect of endovascular brachytherapy on the prevention of restenosis after interveneional therapy and to investigate its possible mechanisms. METHODS: In the balloon-injuried rabbit model, pathological sections of iliac arteries were observed and the changes of vascular histomorphology were estimated by computer analysis of photomicrograms. Using immunohistochemical ...
Mai V M - - 2000
Detection of regional perfusion deficit in the lung has been demonstrated using an arterial spin labeling technique called flow-sensitive alternating inversion recovery with an extra radiofrequency pulse (FAIRER). A pulmonary artery was occluded using a nondetachable balloon catheter to simulate an acute pulmonary embolism in 3 of 10 rabbits. Inflating ...
Sakakibara Y - - 2000
Acute aortic occlusion is a rare but devastating complication of intra-aortic balloon pumping. Prompt diagnosis of aortic occlusion and immediate therapeutic decision making are keys for saving patients in such cases. We describe a 72-year-old man who underwent emergency surgical removal of a thrombus and aortoiliac bifurcated grafting for acute ...
Jenkins M P - - 2000
OBJECTIVE: Photodynamic therapy (PDT) uses red light (non-thermal, non-ionising) to activate a previously administered photosensitizing drug. This inhibits neointimal hyperplasia in injured arteries in small animals where it appears safe and well tolerated. Our aim was to develop a method for percutaneous application of PDT to iliac and coronary arteries ...
Johnson M S - - 2000
PURPOSE: To assess the feasibility of intravascular delivery of nadroparin, a low-molecular-weight heparin, via hydrogel-coated angioplasty balloons, and the effects of nadroparin delivered in this manner on platelet deposition and smooth muscle cell (SMC) proliferation. MATERIALS AND METHODS: Tritiated nadroparin was used to determine the nadroparin-carrying capacity of the hydrogel-coating, ...
Garrett K - - 2000
Indications for use of the intraaortic balloon pump have expanded as advances in the treatment of heart disease have continued. The intraaortic balloon pump is the most widely used circulatory assist device inserted as short term or long term therapy. Because the percutaneous femoral artery approach requires bedrest, new techniques ...
Quaal S J - - 2000
An inner lumen exists within the intra-aortic balloon for the purpose of introducing a guidewire to facilitate balloon insertion. This inner cannula also can be used for continuous arterial pressure monitoring. However, special precautions are necessary when utilizing this port for arterial monitoring as compared to a conventional radial arterial ...
Mentzelopoulos S D - - 2000
Head extension and excessive laryngoscope blade levering motion (LBLM) are undesirable during airway management of trauma patients. We hypothesized that laryngoscopy with a modified blade facilitating glottic exposure by balloon inflation would reduce head extension and LBLM. Seventeen elective surgery patients were enrolled. Patients lay supine with their heads flat ...
Gourisankaran V - - 2000
Finite element models of diseased arteries subject to balloon dilation are used to study the stresses in the arterial wall and plaque at peak balloon pressures. These models incorporate large strain, simulate contact between the balloon and the inner artery, and the constituent materials are modeled as nonlinear elastic. In ...
Saltik I L - - 2000
Seven children and an adult patient with cyanotic congenital heart defects underwent balloon dilatation angioplasty (BDA) of a stenosed systemic-pulmonary artery shunt to improve arterial oxygen saturation. We attempted to perform BDA using the transvenous route in all patients in whom the aorta connected with the right ventricle, such as ...
Simon A D - - 1999
Phosphorothioate (PS) oligodeoxynucleotides (ODN) inhibit vascular smooth muscle cell proliferation through antisense and G-quartet aptameric mechanisms. PS-ODN such as the cytidine homopolymers, have been demonstrated to have non-G-quartet, nonsequence-specific inhibitory effects in a rat carotid balloon injury model of neointimal proliferation. We sought to test the efficacy of S-dC28, a ...
De Biase A M - - 1999
Cardiac catheterization in a patient with recent-onset unstable angina demonstrated a suboccluded dominant right coronary artery (RCA), with angiographic evidence of a large thrombus load and a severe focal stenosis of the left anterior descending (LAD) coronary artery. After abciximab, uneventful PTCA and stenting of the LAD was performed. The ...
Smith M V - - 1999
BACKGROUND: In clinical practice pulmonary artery balloon counterpulsation (PABC) has been utilized only in the operative setting with the balloon housed in a graft attached to the pulmonary artery. Clearly, percutaneous insertion of a dedicated pulmonary artery balloon is a desirable goal for patients requiring temporary assist for right ventricular ...
Hsu DT - - 1999
Congenital aortic stenosis is characterized by narrowing of the aortic valve orifice, leading to left ventricular hypertrophy and predisposing the patient to exercise intolerance and myocardial dysfunction. Careful monitoring is essential because of the progressive nature of this lesion. Balloon valvuloplasty is the procedure of choice as intermediate palliation for ...
Gershony G - - 1999
Purpose of this paper is to investigate the hemostatic capabilities of a novel vascular sealing device consisting of a balloon catheter and procoagulant. Vascular sheaths were placed percutaneously in the femoral arteries of dogs. The sealing device was evaluated using the balloon catheter alone in 6 femoral arteries and with ...
< 3 4 5 6 7 8 9 10 11 12 13 >