Search Results
Results 401 - 450 of 1202
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Mair Rudolf - - 2003
OBJECTIVE: Perioperative mortality, prolonged postoperative recovery after the Norwood procedure, and mortality between stage I and stage II might be related to shunt physiology. A right ventricular to pulmonary artery conduit offers a banded physiology in contrast to a Blalock-Taussig shunt. The purpose of this study was to assess the ...
Cuadra Salvador A - - 2003
Cerebral oximetry is a simple method of measuring regional cerebral oxygen saturation (rSO(2)). One promising application is its use during carotid endarterectomy (CEA) to help minimize the risk of perioperative stroke. The authors used the INVOS-4100 cerebral oximeter at several steps during CEA to measure the effect of carotid clamping ...
Suga Kazuyoshi - - 2003
Diffuse pulmonary microvascular arteriovenous communication developed in an 8-year-old girl with a patent ductus venosus. Tc-99m macroaggregated albumin (MAA) pulmonary perfusion scintigraphy with total-body imaging demonstrated multiple lung perfusion deficits and abnormal tracer uptake in systemic organs with hepatic radioactivity greater than the kidneys, suggesting the presence of right-to-left shunt ...
Choi Byoung Wook - - 2003
PURPOSE: The shunt patency and anatomic alteration of central PA after cavopulmonary connection was assessed by one phase electron-beam computed tomography (EBCT) METHODS: Thirteen patients that received a bi-directional cavo-pulmonary shunt (BCPS, n = 7) or total cavo-pulmonary connection (TCPC, n = 6) were included. The patency of the shunt ...
Cheng Lik C - - 2003
We treated seromas developing in two patients in relation to left-sided modified Blalock-Taussig shunts by reattaching the original graft to the descending aorta. We postulate that seromas may develop because of the large area of contact between the graft and blood. Shortening the length of the Gore-Tex graft may therefore ...
Pizarro Christian - - 2003
BACKGROUND: Diastolic run off into the pulmonary circulation and labile coronary perfusion are thought to contribute to morbidity and mortality after the Norwood procedure (NP). We compared outcomes from the use of a RV to PA conduit (RV/PA) or a modified Blalock-Taussig shunt (BTS), physiologically distinct sources of pulmonary blood ...
Kehler Uwe - - 2003
In order to avoid shunt occlusions through particles of brain parenchyma a new procedure was used. Conventionally during ventricle puncture brain tissue may intrude into perforating holes of the ventricular catheter and subsequently shunt dysfunction may occur. By using a peel-away sheath the ventricular catheter can be protected during puncture. ...
Corno Antonio F - - 2003
From March 1996 to July 2002, 26 consecutive patients, with a mean age of 17.9 months and a mean body weight of 6.6 kg, underwent the modified Blalock-Taussig shunt with a tubular accordion-like prosthesis. In a mean follow-up period (defined as the interval between the shunt procedure and repair or ...
Kaneko Y - - 2003
Heart failure developed 9 years after Fontan takedown with systemic-pulmonary artery shunt in a 12-year-old girl with pulmonary atresia, intact ventricular septum, and obstruction in the proximal pulmonary artery. Surgical scar after multiple operations complicated direct repair of the pulmonary artery, and thus she was not eligible for definitive palliation. ...
Van der Horst C - - 2003
The understanding of erectile physiology has improved the prompt diagnosis and treatment of priapism. Priapism is defined as prolonged and persistent erection of the penis without sexual stimulation and failure to subside despite orgasm. Numerous etiologies of this condition are considered. Among others a disturbed detumescence mechanism, which may due ...
Pedra Carlos A C - - 2003
We describe a case in which a discrete atretic segment of the right pulmonary artery (due to a Blalock-Taussig shunt) was reconstructed using a new radiofrequency system, balloon dilation, and stent implantation in an 18-month-old patient. The shunt was coil-occluded. The technique and applications of this novel approach are discussed.
Demaria Roland G - - 2003
Insertion of intracoronary shunts during off-pump coronary artery bypass surgery can induce a severe endothelial dysfunction. The purpose of this study was to propose a new intracoronary shunt design called Monoshunt, to avoid distal endothelial damage of the target artery in a porcine model. The use of the Monoshunt avoids ...
Li Khan W - - 2003
OBJECTIVE AND IMPORTANCE: Shunt catheter migration is a potential complication of cerebrospinal fluid shunting procedures. We report an unusual case of proximal shunt migration into the sphenoid sinus. To our knowledge, there have been no previous reports of shunt migration through the bony structures of the cranial base. CLINICAL PRESENTATION: ...
Santoro Giuseppe - - 2003
A 3-month-old infant with tetralogy of Fallot presented with progressive severe cyanosis and intractable acidosis about 2 months after a successful modified right-sided Blalock-Taussig shunt. At cardiac catheterization, the suspected shunt malfunction was confirmed. It was due to a bulky, pear-like mass arising from the right subclavian artery and compressing ...
Nabika Shinya - - 2003
OBJECTIVE AND IMPORTANCE: We report an instructive case of repetitive shunt obstruction caused by mischievous turning of the valve by the patient. CLINICAL PRESENTATION: A 7-year-old boy underwent shunt replacement for hydrocephalus caused by intraventricular hemorrhage at birth; the shunt had been revised a month earlier. The boy experienced occasional ...
Tanoue Shuichi - - 2003
OBJECTIVE: Intrahepatic portosystemic venous shunt is relatively rare and not well recognized. Awareness of intrahepatic communications is important because they can cause encephalopathy, and most of these shunts can be completely cured by transcatheter embolization. In this study, we describe the angiographic findings and transcatheter embolization techniques using several approaches ...
Rodesch G - - 2003
Spinal cord arteriovenous shunts (SCAVSs) are either fistulas or niduses that can be separated in four different groups according to their localization and relationship to the dura. Paraspinal AVSs are located outside the spine and are responsible for neurological symptoms because of cord compression by ertatic veins, venous congestion or ...
Choi Byoung Wook - - 2003
The assessment of the accuracy of Electron Beam Computed Tomography (EBCT) for the follow-up of pulmonary vascular system after the shunt operation in cyanotic congenital heart diseases was purpose of the study. The study group consists of 16 consecutive patients with cyanotic congenital heart disease who had Blalock-Taussig (BT) shunt ...
Peuster Matthias - - 2003
We treated a neonate with pulmonary atresia and a ventricular septal defect complicated by straddling of the atrioventricular valves by constructing a central aorto-pulmonary shunt. The postoperative course was complicated by obstruction of the shunt, which was treated by implantation of a coronary stent. Six months after the stenting, a ...
Tireli Emin - - 2003
OBJECTIVE: In patients with functional single ventricular physiology, the avoidance of cardiopulmonary bypass offers many advantages including earlier extubation, decreased necessity of inotropic support, improved hemodynamical status and reduced likelihood of post-operative prolonged pleural effusion. We believe that the bidirectional cavopulmonary anastomosis operations may be performed with transient external shunt ...
Pongprot Yupada - - 2003
The authors report a pseudoaneurysm in a 2-year-old boy presenting with fever, increasing cyanosis and right upper lung shadowing on a chest radiograph at six weeks following modified Blalock-Taussig shunt surgery. Echocardiography and a CT scan of the chest revealed a large pseudoaneurysm originating from the right subclavian artery at ...
Mata-Greenwood Eugenia E Department of Pediatrics, Northwestern University, Chicago, Illinois 60611-3008, - - 2003
The mechanisms responsible for pulmonary vascular remodeling in congenital heart disease with increased pulmonary blood flow remain unclear. We developed a lamb model of congenital heart disease and increased pulmonary blood flow utilizing an in utero placed aortopulmonary vascular graft (shunted lambs). Morphometric analysis of barium-injected pulmonary arteries indicated that ...
Gellasch Kelly L - - 2003
Liver lobectomy for complete attenuation of intrahepatic portosystemic shunts appears to be a safe and effective surgical treatment. When the intrahepatic shunt vessel can be definitively palpated within a liver lobe or its presence confirmed portographically, liver lobectomy represents a technically simple and effective method of complete shunt attenuation. To ...
Zanchetta Mario - - 2003
Intracardiac echocardiography is the newest imaging technology permitting whole-heart evaluation from a right-sided catheter position and contrast transcranial Doppler is an ideal method to noninvasively quantify right-to-left cardiac shunt in real time, by the detection of bubble passage across the brain arteries. The combination of these two methods enables us ...
Donnelly Jon P - - 2003
We report the use of the AngioJet F140 rheolytic catheter to recannalize an acutely thrombosed aortopulmonary shunt in a 21-year-old female with palliated, complex congenital heart disease. After extracting the thrombus that filled the entire length of the shunt, three stents were placed at sites where the lumen was compromised ...
Bateman G A - - 2003
Superficial cortical venous compression secondary to alterations in craniospinal compliance is implicated in the pathogenesis of normal pressure hydrocephalus (NPH). A reduction in the pulsation in the outflow of the cortical veins would be expected to occur following compression of these veins and this has been shown in NPH. If ...
Zias Elias A - - 2003
The bidirectional Glenn shunt has been successfully applied as an adjunct to ventricular septal defect closure and pulmonary valvulotomy to treat congenitally corrected transposition of the great arteries (ccTGA). The purpose of this study was to examine the volume and pressure unloading effects of the bidirectional Glenn shunt on the ...
Demaria Roland G - - 2003
OBJECTIVE: The insertion of intracoronary shunts during off-pump coronary artery bypass surgery may induce severe endothelial dysfunction in the target arteries. The purpose of this study was to determine the role of the ratio of the shunt diameter to the target artery diameter in the development of endothelial dysfunction and ...
Chidambaram Mala - - 2003
Interatrial shunting in the presence of an atrial septal aneurysm is an uncommon but well recognized abnormality. Previous case reports have demonstrated that elevated right atrial pressure secondary to pulmonary embolism or right ventricular infarction may cause right-to-left interatrial shunting in the presence of an atrial septal aneurysm. We describe ...
Ferrell Eric A - - 2003
Two dogs with simultaneous congenital and acquired portosystemic shunts are reported. The first dog was an eight-month-old, male Golden Retriever with a history of peritoneal effusion, polyuria/polydipsia, and stunted growth. The dog had a microcytic, hypochromic anemia, a mildly elevated AST, and a moderate to severely elevated preprandial and postprandial ...
McGirt Matthew J - - 2003
BACKGROUND: Optimal surgical management of patients presenting with shunt failure in the age of neuroendoscopy remains complex. The value of replacing the entire shunt system as opposed to a single shunt component has not been assessed. METHODS: We reviewed the records of all pediatric patients who underwent their first shunt ...
Kubo Shigeki - - 2002
A 48-year-old man underwent ventriculoperitoneal shunting for hydrocephalus secondary to subarachnoid hemorrhage due to left vertebral artery dissection, which had been successfully treated by trapping. The peritoneal catheter was correctly positioned via a right upper abdominal incision, and symptoms related to the hydrocephalus disappeared. One month later, the patient began ...
Bing Wei - - 2002
BACKGROUND: The present study was designed to explore the therapeutic effect of L-arginine on the proliferation and apoptosis of pulmonary artery smooth muscle cells (SMCs) in high pulmonary blood flow-induced pulmonary hypertension and therefore to provide a basis for the mechanism by which L-arginine regulated pulmonary hypertension. MATERIALS AND METHODS: ...
Bayer Atilla - - 2002
Two patients had undergone double-plate Molteno shunt implantation. Both patients required surgical revision, the first at 41 months and the second at 8 months postoperatively, because of a failure of previously functioning tube shunts caused by blockage of the external ostium and intraluminal invasion of the tube by fibrous tissue. ...
Tawk R G - - 2002
Cerebrovascular anomalies remain an issue of controversy regarding diagnosis, classification, and treatment. We report the first case of total and asymptomatic regression and disappearance of a vein of Galen malformation associated with a posterior fossa venous pouch. Different aspects of the vein of Galen are discussed together with emphasis on ...
Gulati Rajeev - - 2002
Pulmonary vasospasm and hypertension may occur after repair or palliation of congenital cardiac defects, and can be fatal in spite of conventional treatment. Nitric oxide has been shown to improve pulmonary hypertension unresponsive to conventional measures after a variety of repairs, but use has infrequently been reported after palliative systemic ...
Sato Yoshinobu - - 2002
A 55-year-old woman with ascites, pancytopenia by hypersplenism, recurrent hemorrhagic esophagogastric varices, and large rectal varices due to congenital hepatic polycystic disease underwent splenectomy and simultaneous double selective shunt; a left gastric venacaval direct shunt for esophagogastric varices and a sigmoid venous left ovarian vein shunt for rectal varices. Her ...
Maeda Katsuhide - - 2002
A 4-year-old boy with massive pulmonary thrombosis after total cavo-pulmonary shunt was successfully treated by aggressive thrombolytic therapy. In the unique circulation involving total cavo-pulmonary shunt with azygous connection, the clinical manifestations of pulmonary thrombosis are somewhat different from those observed with ordinary biventricular circulation. The patient's hemodynamic state, including ...
Tomita Hideshi - - 2002
A 3-year-old boy developed acute obstruction of a left modified Blalock-Taussig shunt following selective power injection of contrast in the shunt. Balloon dilation was ineffective due to rapid recoil of the narrowed segment, but implantation of a stent effectively abolished the obstruction. The obstruction itself may have been produced by ...
Kruger Marelise - - 2002
Centrifugal pumps used to enable atrio-femoral bypass may trigger a change in intra-cardiac shunt flow and increase the risk of morbidity and mortality.
Everett A D - - 2003
Assessment of pulmonary artery pressure is an essential element in the evaluation of children palliated with surgical aorto-pulmonary shunts prior to definitive surgical repair. We report the ease of use and accuracy of a 0.014 inch micromanometer pressure wire for the measurement of pulmonary artery pressures in children with aorto-pulmonary ...
Miyaji Kagami - - 2002
BACKGROUND: A bidirectional cavopulmonary shunt has been performed for the high-risk Fontan patient. It is well known that in the presence of the bidirectional cavopulmonary shunt alone to secure pulmonary blood flow, the central pulmonary artery size decreases over time. We have performed pulsatile bidirectional cavopulmonary shunt (PBCPS), keeping pulmonary ...
Gudavalli Anuradha - - 2002
A 54-year-old man with end-stage cirrhosis of the liver presented for evaluation of dyspnea. Intrapulmonary arteriovenous shunting was suspected. Transthoracic echocardiography with agitated saline contrast injection from the right antecubital vein was performed. Late arrival of saline contrast bubbles in the left atrium by pulmonary veins leading to complete left ...
Sato Yoshinobu - - 2002
We undertook 10 cases of Inokuchi shunt operation (left gastric venous caval shunt), which is a very logical form of treatment but which is not practiced because of its technical difficulty due to the fragility of the left gastric vein. The technical procedures were modified to include an ablation and ...
Civelek A Cahid - - 2002
This case illustrates the reopening of foramen ovale in a young patient with chronic pulmonary hypertension caused by bronchiectasis and chronic pulmonary fibrosis, which resulted in a prominent right-to-left shunt and severe hypoxia. Her clinically unsuspected right-to-left shunt was discovered during ventilation-perfusion scan, which was performed for the evaluation of ...
Bradley Scott M - - 2002
BACKGROUND: The infant with a single ventricle and excessive pulmonary blood flow requires early protection of the pulmonary vascular bed to insure suitability for a subsequent Fontan procedure. The traditional approach, pulmonary artery banding, has had disappointing results. We have pursued an alternate strategy: division of the pulmonary artery, and ...
Tanke R - - 2002
BACKGROUND/PURPOSE: The aim of this study was to analyze whether a ductal left-to-right (L-R) shunt will prolong extracorporeal membrane oxygenation (ECMO) in neonates with severe pulmonary hypertension. This report discusses the onset and termination of a ductal L-R shunt and its potential influences on ECMO when pulmonary hypertension decreases during ...
Dai Zen-Kong - - 2002
The purpose of the study was to assess whether increased pulmonary flow and subsequent development of pulmonary vascular remodelling could alter the expression of endothelial nitric oxide synthase (eNOS) and endothelin-1 (ET-1) in the rat lung. Nine 42-day-old Wistar rats underwent abdominal aortocaval shunt to increase pulmonary blood flow for ...
McMahon C J - - 2002
Two patients with long tunnel-type patent foramen ovale presented for elective transcatheter closure following transient ischaemic attack and stroke. Right to left shunting was confirmed on transthoracic and transoesophageal echocardiography. A new technique that used a transseptal procedure was devised to enable closure of the tunnel-type patent foramen ovale using ...
Chikada Masahide - - 2002
Dilatable banding has been used in various situations. Sometimes Blalock-Taussig shunt banding is performed to prevent pulmonary overcirculation. Recently several reports have described dilatable pulmonary artery banding. We modified these methods for flow control of a Blalock-Taussig shunt. We report the case of a neonate with truncus arteriosus in which ...
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