European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
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Eur J Cardiothorac Surg · Apr 2000
Comparative StudyBiological versus prosthetic ring in mitral-valve repair: enhancement of mitral annulus dynamics and left-ventricular function with pericardial annuloplasty at long term.
The effects of different annuloplasty rings on mitral annulus dynamics and left-ventricular (LV) function after mitral-valve repair (MVR) are still controversial. This study sought to compare biological versus prosthetic rigid rings for annular remodelling in MVR at long term. ⋯ The autologous pericardium seems to be superior to rigid prosthetic rings for annuloplasty in MVR since it provides more favourable mitral annulus dynamics and preserves LV function during stress conditions. Effective and durable annular remodelling with the autologous pericardium is achieved up to 6 years from surgery, with no echocardiographic sign of degeneration in the long term. Further studies are required to compare biological versus flexible prosthetic rings in MVR.
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Eur J Cardiothorac Surg · Apr 2000
Comparative StudyTwenty years experience with pediatric pacing: epicardial and transvenous stimulation.
Permanent cardiac pacing in children and adolescents is rare and often occurs by means of epicardial pacing. Based on two decades of experience, operative and postoperative data of patients with epicardial and transvenous pacing were analyzed retrospectively. ⋯ Transvenous pacing in the pediatric population is associated with a lower acute stimulation threshold and a lower rate of lead-related complications. If epicardial pacing is necessary (e. g. small body weight, special intracardiac anatomy (e.g. Fontan), impossible access to superior caval vein), steroid-eluting leads may be considered.
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Eur J Cardiothorac Surg · Apr 2000
Case ReportsSurgical management of idiopathic subglottic tracheal stenosis.
A case of idiopathic subglottic tracheal stenosis in a 50-year-old female is presented. A procedure of single-stage resection of the lesion and end-to-end anastomosis was performed with excellent results 1 year after the operation. The clinical, paraclinical, diagnostic, therapeutic and histopathological aspects of this rare pathologic condition are discussed and the literature on this topic is reviewed.
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Eur J Cardiothorac Surg · Apr 2000
Comparative Study Clinical TrialBilateral antegrade selective cerebral perfusion during surgery on the proximal thoracic aorta.
To assess risk factors for hospital death and neurologic outcome after surgery on the proximal thoracic aorta using moderate hypothermic circulatory arrest and bilateral antegrade selective cerebral perfusion. ⋯ Hospital mortality and perioperative neurologic complications are not significantly influenced by the duration of antegrade selective cerebral perfusion. Overall complication rate is low.
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Eur J Cardiothorac Surg · Mar 2000
Comparative StudyMitral-valve repair without annuloplasty rings: results after repair of anterior leaflet versus posterior-leaflet defects using polytetrafluoroethylene sutures for chordal replacement.
Defects of the anterior mitral leaflet (AML), including ruptured chordae, are often regarded as difficult or even impossible to repair. Chordal replacement may also be an option in extensive disease of the posterior mitral leaflet (PML). It has not yet been clearly defined whether the repair of either mitral leaflet using chordal-replacement techniques is as safe as the standard repair of the mitral valve (MV) including quadrangular resection and ring reduction alone. ⋯ We were unable to find statistically significant differences concerning mortality, freedom from recurrent MR and MV reoperation between the AML and PML groups. Extensive prolapse or chordal pathology of the anterior and PML can be corrected by chordal replacement. Using these techniques, stable repair can be achieved in more than 90% of patients at mid-term follow-up. Long-term observations are necessary to confirm the durability of this type of MV repair.