Search Results
Results 201 - 250 of 578
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Bacha Emile A - - 2004
Native supravalvar pulmonary stenosis is a rare anomaly, but iatrogenic supravalvar pulmonary stenosis occurs after various repairs for congenital heart disease with relative frequency. Surgical techniques such as patching carry the risk of restenosis. We describe a technique of repair using only autologous tissues that can be applied to both ...
Garini Giovanni - - 2004
A 22-year-old woman presented with effort dyspnea unresponsive to bronchodilators. Harsh respiratory sounds were audible at the neck. Thoracic and cardiac evaluation was normal. Spirometry revealed an obstructive ventilatory defect, and the flow-volume loop indicated upper airway obstruction. Bronchoscopy and tracheal computed tomography revealed a stenosis of the subglottic larynx. ...
Kertai Miklos D - - 2004
PURPOSE: To determine the incidence of perioperative events in patients with aortic stenosis undergoing noncardiac surgery. METHODS: We studied 108 patients with moderate (mean gradient, 25 to 49 mm Hg) or severe (mean gradient, > or =50 mm Hg) aortic stenosis and 216 controls who underwent noncardiac surgery between 1991 ...
Freeman Rosario V - - 2004
Aortic stenosis is the most commonly encountered valvular disease in the elderly, with approximately 2-3% of individuals over 65 years of age afflicted. The most common cause of acquired aortic stenosis is calcific degeneration, characterized by a slowly progressive, asymptomatic period which can last decades. Once symptomatic, the clinical manifestation ...
Thomson J D R - - 2004
What is the best treatment for the child with valvar aortic stenosis-balloon or surgical valvotomy?
Tonelli Marcello - - 2003
Canadian clinical practice guidelines recommend performing angiography when access blood flow (Qa) is <500 ml/min in native vessel arteriovenous fistulae (AVF), but data on the value of Qa that best predicts stenosis are sparse. Because correction of stenosis in AVF improves patency rates, this issue seems worthy of investigation. Receiver-operating ...
Bruno Eva - - 2003
AIMS: We investigated the incidence and outcome of cardiac malformations in 53 patients with Williams syndrome. METHODS AND RESULTS: The mean age, and period of follow-up, were 3.6 and 5.3 years, with standard deviations of 4.0 and 5.6 years, respectively. Of the patients, 45 (85%) had cardiovascular anomalies, often combined. ...
Luckraz Heyman - - 2003
An elderly lady with severe aortic stenosis presented with profuse bleeding per rectum, secondary to angiodysplasia of the small intestine. An emergency aortic valve replacement with a bioprosthesis led to the resolution of her symptoms. Although the association of aortic stenosis and angiodysplasia have been described previously, the patho-physiological mechanisms ...
Chambers John - - 2003
Low gradient aortic stenosis can be caused by critical aortic stenosis causing left ventricular impairment or by more moderate aortic stenosis coexisting with another cause of left ventricular impairment. The main challenges are to differentiate these two states and then to determine whether the left ventricle is likely to recover ...
Iwamoto T - - 2003
AIM: The prevalence of asymptomatic coronary artery stenosis in relation to carotid artery stenosis is influenced by the underlying disease and has yet to be clarified. METHODS: A total of 124 consecutive Japanese patients with aortic aneurysm, but without symptoms of coronary artery stenosis, were divided into 2 groups on ...
Sebastià Carmen - - 2003
Aortic stenosis, or narrowing of the aortic lumen, has many causes. It may originate in coarctation or pseudocoarctation of the aorta, midaortic dysplastic syndrome, atherosclerosis, Takayasu arteritis, aortic dissection, or various intraaortic and periaortic diseases or as a result of aortic surgical repair. The impedance of blood flow through the ...
Ahluwalia Manmeet S - - 2003
Aortic stenosis is a common cardiac problem. Morphological aortic stenosis can be due to valvular, subvalvular and supravalvular causes. Subvalvular causes include subaortic rings and membranes, which usually manifest at a young age, depending on the size of the ring and the degree of obstruction. Recurrent (post-operative) stenosis is a ...
di Gioia Cira R T - - 2003
An infant with normal facies and none of the extracardiac anomalies usually associated with Williams syndrome presented at birth with an echocardiographic pattern of supravalvular pulmonary stenosis and displastic pulmonary valve. A clinical reappraisal was planned at 3 months of age, but the girl died suddenly at home at 2 ...
Ortlepp J R - - 2003
BACKGROUND: Traditional cardiovascular risk factors have been associated with aortic stenosis and coronary artery disease. As these two conditions often co-exist, the association of cardiovascular risk factors with aortic stenosis may reflect confounding. OBJECTIVE: To compare the cardiovascular risk profile in patients with severe aortic stenosis undergoing elective coronary angiography ...
LaBan Myron M - - 2003
OBJECTIVE: To describe an association between the syndromes of lumbar spinal stenosis and chronic obstructive pulmonary disease (COPD) in patients presenting with symptoms of nocturnal lumbosacral radiculopathy. DESIGN: Retrospective review of 46 sequential inpatients referred with complaints of lumbosacral radicular pain associated with lumbar spinal stenosis. Half (23) were experiencing ...
Tessitore Nicola - - 2003
BACKGROUND: Vascular access surveillance by ultrasound dilution blood flow rate (Qa) measurement is widely recommended; however, optimal criteria for detecting stenosis and predicting thrombosis in arteriovenous fistulae (AVFs) are still not clearly defined. METHODS: In a blinded trial, we evaluated the accuracy of single Qa measurement, Qa adjusted for mean ...
Vincentelli André - - 2003
BACKGROUND: Aortic-valve stenosis can be complicated by bleeding that is associated with acquired type 2A von Willebrand syndrome. However, the prevalence and cause of the hemostatic abnormality in aortic stenosis are unknown. METHODS: We enrolled 50 consecutive patients with aortic stenosis, who completed a standardized screening questionnaire to detect a ...
Güler Inan - - 2003
Doppler ultrasound is a noninvasive technique that allows the examination of the direction, velocity, and volume of blood flow. In this study, ophthalmic artery Doppler signals were obtained from 105 subjects, 48 of whom had suffered from ophthalmic artery stenosis. A least-mean squares backpropagation neural network was used to detect ...
Sawhney Neil - - 2003
Aortic stenosis is the most common valvular lesion in patients above the age of 65. The etiology, presentation, and management of aortic stenosis differs in the elderly compared to younger patients in many ways. Many of the classic physical findings are absent in the elderly, making the diagnosis of critical ...
Croft Lori B - - 2003
Aortic stenosis is a progressive disease of aging with serious complications. A common disease of the elderly, it may inexorably progress to stenosis. Recent retrospective studies have correlated risk factors commonly associated with coronary and vascular atherosclerosis with an accelerated rate of aortic valve stenosis. Although hydroxymethyl glutaryl co-enzyme A ...
Garcia Damien - - 2003
OBJECTIVES: We sought to obtain more coherent evaluations of aortic stenosis severity. BACKGROUND: The valve effective orifice area (EOA) is routinely used to assess aortic stenosis severity. However, there are often discrepancies between measurements of EOA by Doppler echocardiography (EOA(Dop)) and those by a catheter (EOA(cath)). We hypothesized that these ...
Campbell N - - 2003
Anaesthetic management of Caesarean section in a parturient with severe pulmonary stenosis and aortic regurgitation is described. The valvular sequelae resulted from previous unsuccessful surgical correction (Ross procedure) of congenital aortic stenosis. This case demonstrates the importance of multi-disciplinary assessment and careful anaesthetic planning, to avoid deterioration in perioperative cardiac ...
Preisman Sergey - - 2003
Hemodynamic compromise caused by the insertion of the probe for transesophageal echocardiography in a patient with severe stenosis of the main pulmonary artery is reported for the first time. The first symptom of the impending problem was a rapid decrease of end-tidal CO(2).
Oshima Y - - 2002
The fate of patients with pulmonary artery sling depends on associated tracheal lesions. Distal tracheal stenosis involving the carina frequently results in lethal obstruction due to secretion or inflammatory edema. Further-more, associated complex cardiac anomalies with excessive pulmonary flow make the situation more complicated. We present a case of successful ...
Sachithanandan Anand - - 2002
In severe valvular aortic stenosis, obstruction to ventricular contraction results in prolonged ventricular systole and diminished peak flow velocity. This may translate into weak or impalpable peripheral arterial pulses. We report a case of severe aortic stenosis associated with an impalpable carotid pulse (in the absence of local carotid artery ...
Padayachee T S - - 2002
OBJECTIVES: Carotid endarterectomy has been used to treat both asymptomatic and symptomatic disease and this has meant that recurrent stenosis and its effect on late stroke risk have become increasingly important. In this study we compared anatomical defects and residual stenosis identified intra-operatively with recurrent stenosis and new symptoms developing ...
Malik Jan - - 2002
BACKGROUND: Stenoses of vascular accesses are leading factors limiting access survival. Besides physical examination, screening of access stenoses is based mainly on the "dysfunction hypothesis", which states that progressive stenosis causes graft dysfunction, such as decreased flow. We tested whether Doppler ultrasonography could detect a number of clinically hidden access ...
Aguilera I M - - 2002
We present a case of postintubation tracheal stenosis in an 11-year-old boy occurring after a relatively short period of intubation. He had been intubated and ventilated in a paediatric intensive care unit after a road traffic accident. Clinical symptoms manifested by oxygen desaturation and wheeziness, finally leading to deterioration of ...
Cilliers A M - - 2002
The discrete form of subaortic stenosis is thought to be an acquired lesion, the aetiology of which may be a combination of factors which include an underlying genetic predisposition, turbulence in the left ventricular outflow tract, and various geometric and anatomical variations of the left ventricular outflow tract. A review ...
Kadem Lyes - - 2002
BACKGROUND AND AIMS OF THE STUDY: Transvalvular mean pressure gradients (MPG) are important in the evaluation of aortic stenosis, but surprisingly they often differ in patients having similar valve effective orifice area (EOA) and stroke volume (SV). The study aim was to determine if these differences could be explained by ...
Clase C M - - 2002
The objective of this study was to determine whether asymptomatic patients at high risk for carotid stenosis should undergo screening Duplex ultrasound (DUS), with a view to offering carotid endarterectomy (CE) to those patients with significant stenosis. We constructed a decision analysis model to evaluate the impact of an investigate-and-operate ...
Abdelmalak Basem - - 2002
We describe a patient who developed respiratory arrest 4 h after successful laser treatment of tracheal stenosis. Respiratory arrest was caused, presumably, by airway narrowing due to delayed tissue edema secondary to thermal injury by deep penetration of the laser beam.
Krämer R - - 2002
INTRODUCTION: There is a controversial discussion about the adequate surgical procedure for degenerative lumbar spinal stenosis. Due to the observation that the degenerative lumbar spinal stenosis takes place predominantly at the interlaminar region on the level of the disc involving facets and bulging of the ligamentum flavum, resection of the ...
Rose Alan G - - 2002
We report 2 cases of acquired supravalvar aortic stenosis (SVAS) complicating orthotopic cardiac transplantation that contributed to the post-operative death of both patients. In the first patient the stenosis resulted from kinking of a too-long graft aortic component that was rendered into a fixed deformity by healed mediastinitis and constrictive ...
Kutlu Cemal Asim - - 2002
In this paper we report a case with tracheobroncopathia osteochondroplastica presented with a long segmental tracheal stenosis. Modified slide tracheoplasty was undertaken for the management of the stenosis. In our modification, the oblique tracheal cut was performed from left to right to widen the latero-lateral dimension of tracheal lumen. We ...
Schröder W - - 2002
The formation of a gastric tube for esophageal replacement requires partial devascularization of the stomach and induces microcirculatory changes in the anastomotic region of the gastric fundus. The additional influence of celiac trunk stenosis on anastomotic healing has not been investigated. In total, 23 patients with an esophageal carcinoma underwent ...
Kozàkovà M - - 2001
This study was designed to evaluate the possible contribution of 3-dimensional (3D) ultrasound (US) for noninvasive detection of extracranial carotid artery stenosis. Sixty-nine stenotic lesions of extracranial carotid artery were studied by (1) B-mode (Bm) US, (2) Doppler spectral analysis, and (3) a prototype of 3D vascular system. When indicated ...
Minich L L - - 2001
Reimbursement for limited echocardiograms focusing on known pathology rather than complete studies has recently received widespread attention. Few data are available to determine if these limited examinations provide enough information to adequately evaluate many forms of congenital heart disease. Stenosis of normally connecting pulmonary veins is a congenital or acquired ...
Py M O - - 2001
OBJECTIVE: To evaluate the accuracy of subjective visual impression (SVI) of an experienced neuro-radiologist in the measurement of the degree of internal carotid artery (IC) stenosis evaluated by digital angiography (DGA). METHOD: Ten symptomatic patients with internal carotid stenosis greater than 70% in a previous duplex scan were submitted to ...
Ko┼čar F - - 2001
OBJECTIVES: (1) To evaluate the clinical usefulness of QTc dispersion determination in aortic stenosis and (2) to compare the effects of QTc dispersion on the occurrence risk of syncope in aortic stenosis. BACKGROUND: QT interval dispersion has long been known to be a marker of dispersion of ventricular repolarization and, ...
Arowojolu A O - - 2001
A retrospective analysis of acquired gynaetresia (Vaginal Stenosis) managed at the University College Hospital Ibadan, Nigeria between 1967 and 1996 was conducted in terms of clinical presentation and management. The prevalence rate was 7/1000. The peak age incidence was 20-30 years. Chemical vaginitis resulting from insertion of caustic vaginal pessaries ...
Horan T T Hospital SARAH and University SARAH in Rehabilitation Sciences, Brasília, Distrito Federal, Brazil. - - 2001
To determine the utility of forced oscillation technique (FOT) for measuring pulmonary resistance and reactance in patients with central nervous system injuries, for detection and follow-up of posttracheostomy tracheal stenosis. Case series. A rehabilitation hospital, Brasilia, Distrito Federal, Brazil. Ten consecutive neurologically impaired patients, who had previously undergone tracheostomies, with ...
Jun B M - - 2001
Retroperitoneal fibrosis is a rare disease characterized by the formation of dense plaque of fibrous tissue covering the retroperitoneal structures. This disease is commonly presented as ureteral obstruction, but the involvement of duodenum is rare. We report a case of retroperitoneal fibrosis which was complicated with duodenal stenosis and was ...
Marton T - - 2001
The present study describes an association between adverse outcome in the twin-to-twin transfusion syndrome (TTTS) and pulmonary stenosis or reactive right ventricular hypertrophy. Six discordant monozygotic twin pregnancies with TTTS are described. Ventricular hypertrophy and atrioventricular valvular regurgitation occurred in all the recipient twins with pulmonary valvular stenosis in three ...
Biro P - - 2001
The surgical resection of a high-grade tracheal stenosis presents a special case of a difficult airway. A 20-year-old male was treated for a 45-mm long tracheal stenosis with 60% reduction of the patent airway area beginning 25 mm below the glottis. To avoid manipulations of the affected segment before surgical ...
Depairon M - - 2001
Vascular access (VA) stenosis with subsequent thrombosis remains one of the major causes of morbidity and hospitalization in haemodialysis patients. The present cross-sectional study was planned in order to analyze the usefulness of brachial artery duplex ultrasound for detection and prediction of vascular access stenoses. Color duplex ultrasound (Apogée Cx200, ...
Koga M - - 2001
BACKGROUND AND PURPOSE: Duplex sonography is an effective tool for evaluating internal carotid artery (ICA) stenosis, and power Doppler imaging has improved its value in this regard. Our goal was to elucidate which parameters, such as linear stenosis, area stenosis, and peak systolic velocity (PSV), are the most reliable predictors ...
Mamede R C - - 2001
CONTEXT: Caustic substances cause tissue destruction through liquefaction or coagulation reactions and the intensity of destruction depends on the type, concentration, time of contact and amount of the substance ingested. OBJECTIVES: To analyze the complications in patients who ingested caustic substances and correlate them with the amount of caustic soda ...
Park C M - - 2001
To determine the incidence and etiologies of celiac axis stenosis in asymptomatic individuals. This prospective study involved 400 consecutive patients (male: 319, female: 81) referred to us for celiac arteriography between April and July 1999. When celiac axis branches were opacified by collateral circulation during superior mesenteric arteriography, the presence ...
Goel P - - 2001
In this report, we describe a case of coarctation of the aorta, congenital aortic stenosis with bicuspid valve, and supravalvar aortic stenosis with left coronary artery ostial stenosis. The child underwent staged treatment using a hybrid approach employing both surgical and interventional cardiology methods. A single pericardial patch repair technique ...
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