Search Results
Results 351 - 400 of 893
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Floyd Thomas F - - 2006
BACKGROUND: The reported frequency of stroke after coronary artery bypass grafting varies between 1.5% and 6%, approaches 10% after aortic valve replacement, and may occur in between 40 to 70% in high-risk groups. Clinically silent infarction may be far more frequent and could contribute to long-term cognitive dysfunction in patients ...
Tobinaga Satoru - - 2006
A 67-year-old woman with a history of esophagectomy with substernal gastric tube (GT) reconstruction and left lower lobectomy required aortic valve replacement (AVR) for aortic valve regurgitation and stenosis. Through a median sternotomy (MS) with cardiopulmonary bypass (CPB), we performed AVR without injury to the GT. Careful peeling of the ...
Chau Elaine M C - - 2006
From 1995 to 2004, 13 patients with severe aortic regurgitation due to non-infectious aortitis underwent aortic valve surgery at our center. Twenty-eight operations (18 aortic valve replacements and 10 Bentall procedures including 1 aortic root replacement with a homograft) were performed due to a high incidence of prosthetic valve or ...
Waterbolk Tjalling W - - 2006
OBJECTIVE: Pulmonary valve replacement is performed increasingly late after correction of Tetralogy of Fallot. Most reports deal with pulmonary allografts as the valvar substitute of choice, although late deterioration and reoperation(s) are the rule. Mechanical valves are scarcely reported and if so only because of complications. Although life-long anticoagulation therapy ...
Garay Francisco - - 2006
We report on the use of the Edwards-Cribier percutaneous heart valve (PHV) in a stenotic right ventricle to pulmonary artery homograft in a 16-year old patient who underwent the Ross operation. Initially, the homograft was stented and at the same procedure, the PHV was deployed inside it. This is the ...
Nemes Attila - - 2006
The coronary flow velocity reserve (CFR) is decreased in patients with aortic valve stenosis (AS). The aim of the present prospective study was to examine the CFR in AS patients with normal epicardial coronary arteries during a 3-year follow-up of aortic valve replacement (AVR). A total of 30 AS patients ...
Maeder Micha T - - 2006
A 62-year-old man presenting with congestive heart failure due to a fistula between an aortic pseudoaneurysm and the right pulmonary artery is described. The shunt occurred 4 years after aortic valve and supracoronary graft replacement and was diagnosed by transesophageal contrast echocardiography. After redo surgery the patient made an uneventful ...
Zartner P - - 2007
In a patient with moderate malformations of the left-ventricular valves disregard of antibiotic prophylaxis after tooth extraction resulted in massive mitral- and aortic regurgitation. After surgical reconstruction a relapse produced an aorto left-ventricular fistula with septic embolizations and cardiac decompensation. Valve replacement with a homograft reconstituted the hemodynamic situation. During ...
Seguin Agathe - - 2006
BACKGROUND: Carinal replacement after extensive resection remains a tremendous challenge in thoracic surgery. In previous studies, we demonstrated that an aortic graft could be a valuable tracheal substitute. The goal of this new study was to evaluate the reconstruction of the carina using a stent supported bifurcated aortic allograft. METHODS: ...
Azorin Jacques F - - 2006
Tracheal replacement after extensive resection remains a challenge for the thoracic surgeon. We propose an innovative solution: the use of an aortic autograft. After an experimental work on animals with aortic autografts and allografts [Martinod E, Seguin A, Pfeuty K, Fornes P, Kambouchner M, Azorin JF, Carpentier AF. Long-term evaluation ...
Erez Eldad - - 2006
BACKGROUND AND AIM OF THE STUDY: A variety of valve substitutes are used for right ventricular outflow tract (RVOT) reconstruction in children and young adults after previous RVOT surgery that has led to significant pulmonary insufficiency and/or stenosis. Herein, the authors' experience with pulmonary valve replacement (PVR) using a porcine ...
Ogano Michio - - 2006
A 64-year-old man with repetitive gastrointestinal bleeding was admitted to our hospital. Colonic artery angiography revealed angiodysplasia as the bleeding site, and echocardiography showed aortic valve stenosis. A decrease in the high molecular weight von Willebrand factor multimers, which are known to play an important role in hemostasis, was observed, ...
Kobayashi Mariko - - 2005
A 6 month-old male infant (weight: 4.5 kg) with congenital aortic stenosis underwent aortic valve replacement with a pulmonary autograft (Ross procedure). The right ventricular outflow tract (RVOT) was reconstructed with a polytetrafluoroethylene (PTFE) -valved equine pericardial conduit. At the age of 5, re-RVOT reconstruction with an equine pericardial patch ...
Bilal Mehmet S - - 2005
Although the Ross procedure is preferred for aortic valve replacement in young and female patients, there are no reported cases of hypercholesterolemic aortic pathology due to homozygous familial hypercholesterolemia. Long-term durability of the pulmonary autograft in patients with postoperative high blood cholesterol levels is of interest. A 14-year-old girl with ...
Aranki Sary F - - 2005
BACKGROUND: Atheroembolic complications associated with clamping a severely diseased ascending aorta during aortic valve replacement may result in unacceptable mortality and morbidity. Different management options include hypothermic circulatory arrest to replace the aortic valve, an aortic endarterectomy, or tube graft replacement of the aorta to allow safe application of cross-clamp ...
Luciani Giovanni Battista - - 2005
BACKGROUND AND AIM OF THE STUDY: Among late complications after the Ross operation, autograft dilatation is likely the most common. In order to define prevalence, consequences and management of autograft dilatation, a 10-year clinical experience was reviewed. METHODS: A total of 112 patients (mean age 29 +/- 10 years) underwent ...
Zehr Kenton J - - 2005
OBJECTIVE: Novel antigen-reduction SynerGraft technology (CryoLife Inc, Kennesaw, Ga) reduces the cellular components of a cadaver homograft with an enzymatic and washing process, leaving the extracellular matrix intact. We report the immunoreactivity (positive panel reactive antibody assay) and early operative results of the CryoLife SynerGraft aortic valve conduit homograft. METHODS: ...
Talwar Sachin - - 2005
BACKGROUND: The aim of our study is to assess the results of aortic valve replacement with the aortic homograft. METHODS: From January 1994 through September 2003, 154 patients with aortic valve disease (rheumatic = 118, nonrheumatic = 36), and a mean age of 28.8 +/- 18.2 years, underwent aortic valve ...
Raja Shahzad G - - 2005
Reconstruction of the right ventricular outflow tract (RVOT) is needed in a wide variety of congenital heart diseases at the time of primary repair, or later for replacement of existing valves or conduits. Ideally, the conduit or valve needed for such reconstruction should be formed of autologous tissue that grows, ...
Peltz Matthias - - 2005
My colleagues and I report an unusual case of traumatic aortic injury in an 18-year-old woman who had undergone multiple prior surgical procedures for repair of a type B interrupted aortic arch. Her most recent procedure included replacement of the proximal descending thoracic aorta with a 19-mm homograft at age ...
Hanayama Naoji - - 2005
OBJECTIVE: Incomplete regression of left ventricular hypertrophy (Abn-LVMI) following AVR for aortic stenosis (AS) may decrease long-term survival. In this prospective study, we identified the predictors of Abn-LVMI. METHODS: Between 1990 and 2000, 529 patients undergoing AVR for AS had clinical and hemodynamic data collected prospectively. Preoperative and annual postoperative ...
Shiono Motomi - - 2005
A 38-year-old woman who had undergone an original Bentall operation in December 1995 for annuloaortic ectasia associated with ulcerative colitis required reoperation for ascending aortic aneurysm, coronary ostial aneurysm, and patent Cabrol trick. The initial Bentall operation included aortic root replacement using a valved conduit and reconstruction of the coronary ...
Sayk Friedhelm - - 2005
Innovative valved conduits for reconstruction of the right ventricular outflow tract are desirable to overcome the risk of valve deterioration of conventional homografts. This study describes the histopathology of a novel decellularized pulmonary homograft (SynerGraft) implanted in the right ventricular outflow tract of a 60-year-old man 5 weeks before death. ...
Folliguet Thierry A - - 2005
We report our initial experience with aortic valve replacement using robotic assistance. All procedures were performed with peripheral cardiopulmonary bypass, transthoracic aortic cross-clamp, and antegrade cold crystalloid cardioplegia. One or two ports and a 5-cm intercostal incision in the right chest were used for access. All patients had aortic valve ...
Boudjemline Younes - - 2005
BACKGROUND: Percutaneous pulmonary valve replacement has recently been introduced and is under investigation in humans. This technique is, however, limited to patients with a right ventricular outflow tract that does not exceed 22 mm in diameter. We report our experience of off-pump pulmonary valve replacement using a hybrid approach in ...
Bakaeen Faisal G - - 2005
Stentless bioprosthetic valves for the aortic position offer excellent hemodynamic characteristics, making them an attractive choice ahead of other valve prostheses. We present a unique case in which a patient underwent aortic valve replacement with a stentless porcine valve and mitral valve repair for severe aortic and mitral regurgitation 1 ...
Therrien Judith - - 2005
The timing of pulmonary valve replacement in adult patients with repaired tetralogy of Fallot remains controversial. A magnetic resonance imaging study in 17 adult patients with repaired tetralogy of Fallot reveals a statistically significant decrease in right ventricular (RV) volume (RV end-diastolic volume 163 +/- 34 to 107 +/- 26 ...
Zook Elvin G - - 2005
The pincer-nail deformity is characterized by an excessively curved and distorted nail across the transverse dimension. Forty-nine sides (paronychial folds) were dissected off the distal phalanx periosteum with scissors and/or a small elevator. The dermis was placed between the paronychial fold and the plalanx to flatten the germinal and sterile ...
Ehsan Afshin - - 2005
Treatment of hypoplastic left heart syndrome through staged repairs has resulted in patients surviving into adulthood. Use of either aortic or pulmonary homografts in performing the neoaortic reconstruction has become the standard of practice with relatively few problems. We report the case of an asymptomatic adolescent boy who had an ...
Martinod Emmanuel - - 2005
BACKGROUND: Tracheal replacement remains an unsolved surgical problem. Attempts to use tracheal substitutes have failed to achieve reliable results. In this study, tracheal regeneration was obtained after tracheal replacement with an allogenic aorta. METHODS: Twenty female sheep underwent a 8-cm tracheal replacement with a fresh aortic allograft. In the six ...
Settepani Fabrizio - - 2005
BACKGROUND: Pulmonary autograft aortic root replacement was used in adults. Risk factors for aortic valve incompetence (AI) and pulmonary homograft valve stenosis are identified. METHODS: From February 1991 through May 2003, 103 patients, with a mean age of 35.2 +/- 9.5 years, underwent aortic root replacement with the pulmonary autograft. ...
Göber Volkhard - - 2005
BACKGROUND: Current techniques for repair of the right ventricular outflow tract (RVOT) may require interposition of a valved conduit between the right ventricle and the pulmonary artery bifurcation. Recently, the Contegra conduit (Medtronic, Inc.) was introduced as an alternative xenograft tissue for RVOT reconstruction. Promising early hemodynamic and clinical results ...
Anttila Vesa - - 2005
OBJECTIVE: Review of surgical repair of aortic root aneurysms using composite graft or homograft in children. METHODS: A consecutive series of 34 children (mean age 10.8+/-5.4 years) who underwent elective aortic root replacement using composite graft or homograft from 1987 to 2003 (mean follow-up 5.7+/-3.7 years). RESULTS: Preoperatively, the aortic ...
Bizzarri Federico - - 2005
We describe an unusual case of left ventricular outflow tract (LVOT) pseudoaneurysm late after aortic valve replacement. A 77-year-old man, who had undergone aortic valve replacement with mechanical prosthesis 7 years ago, presented, asymptomatic, with a transesophageal echocardiography (TTE) diagnosis of a large cavitary mass arising behind the aortic wall. ...
Slater Matthew - - 2005
Dilatation of the pulmonary autograft is a problem described following Ross procedure for aortic valve replacement. Patients at risk seem to be those with aortic insufficiency, bicuspid aortic valves, and those with aneurismal ascending aortas. We describe a technique for encasing the pulmonary autograft in a Dacron tube to prevent ...
Metin S K - - 2005
Homografts have been used in congenital cardiac surgery for over 30 years. We utilized the resources of a national organ-sharing programme to obtain fresh homografts and report their use in correcting cardiac pathologies in 20 children between March 2001 and May 2003. In 16 patients, a valved conduit was used ...
Dunst Karin M - - 2005
Bleeding from suture holes in aortic valve replacement (AVR) may represent a difficult problem especially if the aortic wall is friable. We describe a case in which suture hole bleeding after AVR was present at the posterior aortic wall close to the pulmonary artery. Following several attempts to suture the ...
Cameron Duke E - - 2005
Marfan syndrome is the most common inherited connective tissue disorder, affecting approximately 1 in 10,000 live births. The cardinal features of Marfan syndrome are the abnormalities of the skeleton (tall stature, arachnodactyly, and joint hyperelasticity), eye (lens subluxation), and aorta (root aneurysm with proclivity toward rupture and dissection). Aortic catastrophe ...
Konertz Wolfgang - - 2005
BACKGROUND AND AIM OF THE STUDY: Aortic valve disease can be treated successfully by means of the Ross operation. Alternatives to pulmonary valve replacement with homografts are needed. The study aim was to demonstrate the performance of a decellularized porcine xenograft valve (Matrix P) in adult patients after the Ross ...
Mohammadi Siamak - - 2005
BACKGROUND: This study analyzes surgical approaches of 29 operations carried out for false aneurysms of the ascending aorta after prosthetic replacement (FAA) from January 1979 to April 2003, in 28 patients. METHODS: Initial operations consisted of a composite valve graft with reimplantation of coronary arteries (n = 14) or a ...
Anthonio Rutger L - - 2005
Perforation of the left main stem is a rare complication associated with combined aortic valve replacement and by-pass surgery. One-year following aortic valve replacement a 70-year-old male presented with chest pain. This was related to a slowly expanding haematoma caused by a low profile chronic perforation of the left main. ...
Hraska Viktor - - 2005
Although several techniques for the correction of tetralogy of Fallot (TOF) with absent pulmonary valve have been described, the method of choice is controversial. Symptomatic infants, in particular, have a poor prognosis because of severe central pulmonary artery dilatation and bronchial compression. An alternative technique for primary repair of TOF ...
Becit Necip - - 2005
A 31-year-old woman who had undergone aortic and mitral valve replacement 1 year previously was hospitalized with suspected prosthetic valve endocarditis. Freestyle stentless aortic xenograft was successfully replaced using freestanding total aortic root replacement techniques at the left ventricular outflow tract position, and aorta-to-right coronary artery bypass was also applied ...
Solanes N - - 2004
The need for arterial grafts in coronary surgery to complement autologous vessels has generated interest in cryopreservation of small diameter allografts. We evaluated functional and histologic changes occurring in cryopreserved allografts 3 months after porcine femoral artery transplants. METHODS: Twenty recipient and 15 donor pigs included a control group of ...
Hemmer Wolfgang B - - 2004
PURPOSE: We present an early series to determine the technical feasibility of simultaneous aortic valve and complete ascending aortic replacement using a longer stentless aortic xenograft, harvested with an extended root. DESCRIPTION: The stentless xenograft valved conduits commercially available are too short for complete ascending aorta replacement, and usually a ...
Takabayashi Shin - - 2004
OBJECTIVE: In the Ross procedure, a homograft conduit is commonly used in place of an autotransplanted pulmonary valve. Homograft availability may be a problem and has resulted in a search for alternatives. We performed a modified Ross procedure for right ventricular outflow tract reconstruction with a synthetic valved conduit as ...
Hanayama Naoji - - 2004
The purpose of this study is to present a comprehensive profile of the trends in aortic valve replacement at a single institution over the past decade. Prospectively collected data concerning 873 patients undergoing aortic valve replacement (AVR), with and without coronary artery bypass grafting (CABG), were analysed. The patients were ...
Demers Philippe - - 2004
The absence of sinuses of Valsalva is postulated to perturb coronary flow patterns and to create abnormal leaflet stresses, which theoretically may limit the long-term durability of valve-sparing aortic root replacement with the original Tirone David-I reimplantation technique with a cylindrical tube graft. David developed the "T. David-V" procedure in ...
Ali Ayyaz A - - 2004
Acquired surgical disease of the pulmonary valve is rare. We report a 72-year-old man who presented with subacute endocarditic pulmonary regurgitation. This lesion was surgically corrected with a stentless bioprosthesis. Previously, homografts and various xenografts have been used for replacement of the pulmonary valve both in the pediatric population and ...
Kimura Satoshi - - 2004
We report a 67-year-old man with a tracheostoma who successfully underwent coronary artery bypass grafting and aortic valve replacement. He had received both a tracheostoma just above the sternal notch after total laryngectomy. As the standard full sternotomy might cause mediastinitis, we performed the operation through a lower half sternotomy ...
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