Search Results
Results 251 - 300 of 897
< 1 2 3 4 5 6 7 8 9 10 11 >
Belli Emre - - 2010
BACKGROUND: The surgical reconstruction of right ventricle outflow tract (RVOT) often requires the implantation of a valved conduit. Homografts are lacking availability and are associated with limited durability in children. Our experience with the Hancock porcine-valved Dacron (DuPont, Wilmington, DE) conduit (Medtronic, Minneapolis, MN) was retrospectively assessed. METHODS: Follow-up was ...
Muneuchi Jun - - 2010
A 27-year-old woman was admitted because of breathlessness, orthopnea, and hemoptysis. The present patient was diagnosed with congenitally corrected transposition of the great arteries (cc-TGA) and underwent systemic atrioventricular valve replacement for severe insufficiency at 23 years of age. She also had been treated with oral conjugated equine estrogen (Premarin) ...
Hollinger Laura - - 2010
Infection after aortic root replacement is uncommon, and it can be fatal. Herein, we present the case of a patient who underwent aortic root replacement with a valved conduit and coronary reimplantation. Prosthetic valve endocarditis and left ventricular cutaneous fistula ensued. Either condition alone could have been fatal. The fistula ...
Sharef Sadik - - 2010
Disease or dysfunction of the aortic valve in pediatric patients presents a substantial challenge. Valve preservation, even if not the definitive solution, is always optimal. Successful repair will enable somatic growth and avoid repeated valve replacement and the need for systemic anticoagulation. When repair of the aortic valve is not ...
LaPar Damien J - - 2010
Increasingly, patients with previous sternotomy require aortic valve replacement. We compared outcomes of reoperative aortic valve replacement after previous sternotomy and primary aortic valve replacement by surgical era. Effect of initial cardiac operation on reoperative aortic valve replacement was also investigated. Between January 1996 and December 2007, a total of ...
Urbanski Paul P - - 2009
A 64-year-old man was referred for aortic valve re-replacement due to moderate-to-severe stenosis that developed 10 years after complete aortic root replacement using a stentless valve composite graft. He also had coronary heart disease and a mitral valve defect with predominant insufficiency. The patient underwent re-do surgery consisting of coronary ...
George Isaac - - 2009
Pulmonic valve reconstruction is required for various congenital heart diseases and in concert with aortic valve autograft replacement (ie, the Ross procedure). Current techniques using homografts and autografts are often associated with significant morbidity and mortality, and are technically challenging. Furthermore, the long-term durability of these repairs has been questioned, ...
Ivy D D - - 2009
Recognition of causes of pulmonary hypertension other than congenital heart disease is increasing in children. Diagnosis and treatment of any underlying cause of pulmonary hypertension is crucial for optimal management of pulmonary hypertension. This article discusses the available knowledge regarding several disorders associated with pulmonary hypertension in children: idiopathic pulmonary ...
Rosenzweig E B - - 2009
The diagnostic evaluation of a pediatric patient with suspected pulmonary arterial hypertension (PAH) is extensive but essential, given the rapid progression of the disease if left undiagnosed and untreated. The major goals of performing a complete diagnostic work-up are to confirm the diagnosis of PAH, assess disease severity, rule out ...
Salati Maurizio - - 2009
An 84-year-old patient underwent combined aortic valve replacement and left lower lobectomy (LLL) for bronchogenic cancer. At surgery, which was performed via median sternotomy, the fissure was found to be totally fused. The fissure, artery, and bronchus were treated off pump, while the left inferior pulmonary vein and the inferior ...
Scherner Maximilian - - 2009
In this case we illustrate our experience with transapical minimal invasive aortic valve replacement in a patient who previously underwent mitral valve replacement. The implantation did not interfere with the existing prosthesis and could even be used as a further landmark, helping height positioning of the aortic valve.
Vismara Riccardo - - 2010
The drawbacks of state-of-the-art heart valve prostheses lead researchers to explore the prospect of using tissue-engineered constructs as possible valve substitutes. It is widely accepted that the mechanical properties of the construct are improved with mechanical stimulation during in vitro growth. We designed a new dynamic bioreactor with the perspective ...
Oosterhof Thomas - - 2009
Pulmonary regurgitation is the most important residual lesion after initial surgical correction for pulmonary (sub)valvular stenosis in the early life of patients with tetralogy of Fallot or isolated pulmonary stenosis. Symptomatic or asymptomatic patients with severe right ventricular dilatation due to pulmonary regurgitation may benefit from pulmonary valve replacement. Surgery ...
Brown John W - - 2009
BACKGROUND: We reviewed our institutional midterm experience to assess autograft and homograft hemodynamics and reoperative frequency after Ross aortic valve replacement. METHODS: Between June 1993 and January 2009, 212 consecutive patients (mean age, 24.8 +/- 15.5 years; range, 1 month to 67 years) underwent Ross aortic valve replacement; 49% were ...
Molardi Alberto - - 2009
We present a clinical case of severe aortic stenosis in a 73-year-old patient symptomatic for dispnoea class NYHA III-IV. At the physical examination the patient presented a single sternal metastasis of renal carcinoma involving the sternum. Oncological stability prompted us to perform aortic valve replacement. In order to avoid median ...
Kaza Aditya K - - 2009
OBJECTIVES: Neonatal surgery for tetralogy of Fallot and truncus arteriosus requires reconstruction of the right ventricular outflow tract. Although the method of reconstruction is often dictated by the individual anatomy, choices exist. This review examines the durability and outcomes of right ventricular outflow tract reconstruction in the neonate. METHODS: This ...
Venkataraman Rajesh - - 2009
Dissection of the pulmonary autograft is an extremely rare complication requiring emergent treatment as there is a chance of rupture and proximal aortic involvement. The autograft dissection can involve the aortic annulus, causing separation of leaflets from the annulus in addition to causing annular dilatation, thereby precluding resuspension of leaflets. ...
McKellar Stephen H - - 2009
Aortic valve disease is frequently associated with proximal aortic aneurysmal disease. While, there are clear indications for aortic valve replacement, the ideal type of valve prosthesis, mechanical versus biologic remains controversial. This controversy becomes even more complex when the proximal aorta requires replacement as root replacement is more challenging and ...
Nordmeyer Johannes - - 2009
To prospectively evaluate homograft function with cardiac magnetic resonance (CMR) imaging 1 year after insertion into the pulmonary position, and to assess the impact of in situ homograft geometry, surgical factors, and 'intrinsic' homograft properties on early valve incompetence. A total of 60 patients (mean age 21 +/- 10 years; ...
Dayan Victor - - 2009
Isolated pulmonary endocarditis is rare. Two cases that required surgical treatment are reported: a 35-year-old woman with predisposing factors for right-sided endocarditis who presented with complete heart block; and a healthy 65-year-old man with no predisposing factors who was admitted with septic shock. Both patients presented with septic shock and ...
Kogon Brian - - 2009
OBJECTIVE: Congenital heart defects with a component of pulmonary stenosis are often palliated in childhood by disrupting the pulmonary valve, either by means of dilation or excision. It is unclear what factors affect a patient's ability to tolerate long-term pulmonary insufficiency before requiring pulmonary valve replacement. We analyze potential factors ...
Kapadia Samir R - - 2009
Many high-risk patients with severe symptomatic aortic stenosis are not referred for surgical aortic valve replacement. Although this patient population remains ill-defined, many of these patients are now being referred for percutaneous aortic valve replacement. We sought to define the characteristics and outcomes of patients referred for percutaneous aortic valve ...
Scarlett M - - 2009
Pulmonary hypertension (PH) is defined as a systolic pulmonary artery pressure (PAP) above 30 mmHg and a mean PAP above 25 mmHg. Pulmonary hypertensive diseases (PHDs) encompass a myriad of conditions that cause pulmonary hypertension (PH), hence the Evian Classification was developed for the categorization of the various causes. Pulmonary ...
Choi Soojeong - - 2009
Aortic regurgitation is not so rare in patients with Fabry disease. Enzyme replacement therapy has become the standard medical care for Fabry disease in recent years. A 31-year-old man with Fabry disease, treated with recombinant alpha-galactosidase enzyme replacement for 19 months was admitted for evaluation of exertional dyspnea. Cardiac workup ...
LeMaire Scott A - - 2009
BACKGROUND: Traditionally, aortic root replacement has most commonly involved mechanical composite valve grafts, which have excellent durability but necessitate lifelong anticoagulation. Stentless porcine xenografts (bioroots) are a recently developed alternative that enable root replacement without the necessity of long-term anticoagulation. This study examined the early and late outcomes of aortic ...
McRae Marion E - - 2009
Minimally invasive valve replacement is limited to bioprosthetic aortic and pulmonary valves for use in very specific populations of patients. Replacement via trans-catheter and transapical techniques should be used only in patients in whom traditional surgical replacement is deemed an unacceptable risk. Nursing management will focus heavily on care for ...
Prastaro Maria - - 2009
A 34-year-old man was admitted to our hospital's department of neurology because he had experienced a cryptogenic stroke followed by a transient ischaemic attack. The patient suffered from congenital hydrocephalus which was treated by ventriculoatrial shunt at 8 months of age. Twelve months later, because of recurrent infections, the catheter ...
Mykén Pia S U - - 2009
The 20-year data from the ongoing long-term study of the St Jude Medical Biocor (St Jude Medical, St Paul, Minn) porcine bioprosthesis are reported. Earlier follow-ups have shown that the valve has excellent durability. After 20 years, will this continue to be true? Data were obtained for 1712 patients who ...
Lyle Pamela L - - 2009
Whipple disease is a rare multisystemic disorder of infectious aetiology caused by Tropheryma whipplei. Pulmonary hypertension is a rare association for which the underlying pathophysiological mechanism is unclear. Our patient was a 54-year-old man with a 1-year history of progressive polyarticular arthritis, and worsening respiratory and gastrointestinal symptoms. Pulmonary artery ...
Thompson Mark A - - 2009
Pulmonary hypertension is a constellation of diseases that shares signs and symptoms of dyspnea, fatigue, chest pain, palpitations, and syncope. Research advances made over the past decade have significantly changed the natural history of this disease. Therapies initially designed to specifically target the molecular causes of increased pulmonary vascular resistance ...
Brown John W - - 2008
BACKGROUND: In the Ross aortic valve replacement (AVR) procedure, the right ventricular outflow tract (RVOT) conduit is inserted in an orthotopic position. In complex congenital RVOT obstruction, the right ventricular-pulmonary artery (RV-PA) conduit is placed in a more heterotopic position. We hypothesized that durability of homograft RVOT reconstruction in the ...
Bhattacharya Kausik - - 2008
Aortic valve replacement in patients with a patent internal mammary artery grafts poses two main challenges: Sternal reentry and myocardial protection. Beating heart procedures have been well described in coronary and valve surgery. Herein, we describe a simple reproducible technique of aortic valve replacement that circumvents the main issues highlighted ...
Kirsch Matthias E W - - 2009
Increasing patient age and improved durability of latest generation bioprostheses have stimulated the use of bioprosthetic devices in the setting of ascending aortic replacement as an alternative to mechanical valved conduits or aortic valve-sparing procedures. We performed an English literature review to assess different surgical options that have been described ...
Botta L - - 2008
Cryopreserved homografts are used in cases with prosthetic valve endocarditis since they present a higher resistance to infections than synthetic prostheses. Degeneration or endocarditis of the allograft aortic valve (AAV) has been described, but little data is available on allograft ascending aorta (AAA) disease. We describe the intraoperative finding and ...
Dimarakis I - - 2008
Minimally invasive aortic valve replacement has been established in many centres over the last decade. Although numerous modifications have been described to date, these solely involve variations of the utilized operative incision. Total miniaturized cardiopulmonary bypass (tMCPB) offers the theoretical potential of reducing even further the overall procedural "invasiveness". We ...
Sinzobahamvya Nicodème - - 2008
OBJECTIVE: Neonatal primary repair has progressively become the treatment of choice for truncus arteriosus with encouraging survival. However, use of valved conduits to reconstruct the right ventricular outflow tract (RVOT) inevitably induces reintervention. This study estimates survival and rate of catheter-interventional and surgical reinterventions. METHODS: Thirty-five consecutive neonates who underwent ...
Piazza Nicol? - - 2008
The books and articles devoted to the anatomy of the aortic valvar complex are numerous. Until now, however, little consideration has been given to understanding the anatomy with percutaneous valvar replacement in mind. It is axiomatic that knowledge of the anatomy of the valve is fundamental in understanding key principles ...
Kunihisa T - - 2008
This case report details our experience of aortic valve replacement(AVR) following esophagectomy for esophageal cancer.The route of the retrosternal gastric tube was clearly visualized by esophagogram and CT. A mini-sternotomy was performed safely, resulting in minimal dissection of the retrosternal adhesion and a good exposure to institute extracorporeal circulation and ...
Pretorius Victor - - 2008
A case of percutaneous pulmonary valve implantation following a failed homograft in the pulmonary position is reported. A 16-year-old boy developed infective endocarditis of his pulmonary homograft, which was implanted four years earlier during a Ross procedure for congenital aortic stenosis. Following successful medical therapy, the boy was symptomatic due ...
Malhotra Sunil P - - 2008
BACKGROUND: Left atrioventricular valve regurgitation (LAVVR) is a major cause of morbidity after atrioventricular septal defect (AVSD) repair. This study evaluates the outcomes of repair and replacement of the left atrioventricular valve after AVSD correction, as well as factors predictive of durability of valve repair. METHODS: Between January 1983 and ...
Ali Ayyaz - - 2008
AIMS: Structural valve deterioration (SVD) limits the long-term durability of homograft aortic valve replacement (AVR). Valves are implanted predominantly using two techniques, the free-hand sub-coronary (SC) technique or aortic root replacement (RR). Our objective was to identify risk factors associated with the development of SVD or ascending aortic dilatation. In ...
Melo Ana Cláudia Moreira - - 2008
BACKGROUND: Overeruption of an upper molar following loss of the opposing tooth is a common clinical finding. Rehabilitation can be difficult when the interocclusal space is reduced. AIM: To intrude an overerupted upper first molar and replace the missing lower first molar. METHODS: Buccal and palatal microscrews and a transpalatal ...
Fiore Andrew C - - 2008
BACKGROUND: We retrospectively reviewed the performance of the mosaic porcine, bovine pericardial, and homograft prostheses for pulmonary valve replacement to correct chronic pulmonary insufficiency. METHODS: From January 1995 to August 2006, 82 patients (mean age, 22.7 years) underwent valve replacement with porcine (49 patients), bovine pericardial (18 patients), or pulmonary ...
Niemantsverdriet Marieke B A - - 2008
The need for conduit replacement in the growing child remains a major problem after right ventricular outflow tract reconstruction. We compared two diverse surgical centers with considerable practice variation in Europe and the United States to identify modifiable risk factors that can increase conduit longevity. Retrospective analysis of 194 patients ...
Labeda D P - - 2008
The prokaryotic, generic name Goodfellowia Labeda and Kroppenstedt 2006 is illegitimate because it is a later homonym of the name Goodfellowia Hartert, 1903 (Animalia, Chordata, Aves, Passeriformes, Sturnidae) [Principle 2 of the Bacteriological Code (1990 Revision)]. A new genus name, Goodfellowiella, is therefore proposed for this taxon (Rule 54). This ...
Thomopoulou Sofia - - 2008
Iatrogenic ostial coronary stenosis is a rare life-threatening complication of aortic valve replacement, usually presenting after 2-6 months. Although it is rarely reported, its incidence has been estimated at 0.3-5%. The most likely mechanism is posttraumatic fibrous intimal proliferation caused by coronary ostia cannulation for direct cardioplegia. We report a ...
Zhang Li - - 2008
A 41-year-old man suffering from dyspnea on exertion was found to have a mass located on the right ventricle. Resection of the tumour required reconstruction of the right ventricular outflow tract and replacement of the pulmonary valve. Histopathology confirmed the diagnosis of high-grade osteosarcoma.
Gatti Giuseppe - - 2008
The Bentall operation is a well-established procedure for aortic root replacement, generally contemplating the use of a mechanical valve substitute. We have devised a simple modification by which a stented bioprosthesis is sutured inside, rather than at the extremity, of a vascular tube graft. This facilitates the technique of implantation ...
Yang Ji-Hyuk - - 2008
OBJECTIVES: To maintain pulmonary valvar function subsequent to repair of tetralogy of Fallot, we have inserted a homograft monocusp when a transjunctional patch was required. In this study, we have evaluated the mid- to long-term outcomes, aiming to determine the durability of the homograft. METHODS: Among 218 repairs performed for ...
Kostolny Martin - - 2008
OBJECTIVE: Percutaneous pulmonary valve insertion (PPVI) is an evolving alternative to surgical pulmonary valve insertion. The aim of this study is to review the acute complications of PPVI requiring emergency rescue surgery. PATIENTS AND METHODS: Between 09/2000 and 01/2007, 152 patients (pts), received a PPVI. Patient's charts were reviewed in ...
< 1 2 3 4 5 6 7 8 9 10 11 >