Document Detail


Aortic valve replacement with stentless xenografts.
MedLine Citation:
PMID:  1341637     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Between 15th June 1991 and 15th August 1992, 40 patients underwent aortic valve replacement with the newly designed Edwards stentless aortic bioprosthesis 2500. The patients' ages ranged from 24 years to 80 years (mean 60.3 years). Preoperatively, 17 patients presented with pure aortic stenosis, three with aortic regurgitation and 20 with mixed lesion. The operations were performed with normothermic extracorporeal cardiopulmonary bypass and cold cardioplegic arrest. The implanted valves ranged in diameter from 21 mm to 27 mm. Ten patients received a subcoronary implantation, with the lower row of sutures being interrupted and the upper being continuous. The so-called miniroot technique was used in the other 30, also involving lower interrupted and running upper sutures after adaptation of the coronary ostia to the preformed openings in the graft. The aortic cross-clamp time ranged from 51 minutes to 94 minutes (mean 71 minutes). There was no operative mortality but three patients died early after the operation due to cardiac tamponade, sepsis and pneumonia. There was no late mortality or morbidity in the surviving patients up to 16 months postoperatively. Echocardiography, performed at discharge and twice a year thereafter showed no signs of significant valve incompetence in any patient, and continuous wave Doppler measurements indicated that resting pressure gradients across the aortic valve were low or absent. Our preliminary experience with the stentless aortic xenograft shows improved hemodynamic function as compared to stent mounted xenografts or mechanical prostheses. Further studies are needed, however, to establish the long-term performance of this device.
Authors:
W Konertz; P Hamann; E Schwammenthal; G Breithardt; H H Scheld
Related Documents :
16202117 - Association of single coronary artery and congenital bicuspid aortic valve with review ...
14658807 - Transient dynamic mid-left ventricular obstruction following aortic valve replacement.
6869287 - The marfan syndrome in early childhood: analysis of 15 patients diagnosed at less than ...
16678587 - Prosthesis-patient mismatch after aortic valve replacement predominantly affects patien...
7129737 - Incidence of myocardial infarction among male finnish immigrants in relation to length ...
7930207 - Distinct gap junction protein phenotypes in cardiac tissues with disparate conduction p...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of heart valve disease     Volume:  1     ISSN:  0966-8519     ISO Abbreviation:  J. Heart Valve Dis.     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1994-01-25     Completed Date:  1994-01-25     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9312096     Medline TA:  J Heart Valve Dis     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  249-52     Citation Subset:  IM    
Affiliation:
Department of Thoracic and Cardiovascular Surgery, University of Muenster, FRG.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Aortic Valve / physiopathology,  surgery,  ultrasonography
Aortic Valve Insufficiency / physiopathology,  surgery
Aortic Valve Stenosis / physiopathology,  surgery
Bioprosthesis*
Echocardiography
Evaluation Studies as Topic
Heart Valve Prosthesis* / methods
Hemodynamics
Humans
Middle Aged
Prosthesis Design
Stents
Suture Techniques

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Aortic valve replacement with the Toronto SPV bioprosthesis.
Next Document:  Anatomically complete heterograft mitral valve substitute: surgical technique and immediate results.