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Published byGervais Phelps Modified over 9 years ago
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Valve Surgery V.Rohn
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Valve Surgery History before the era of ECC 1925 – Suttar – first successful digital commisurolysis of mitral valve 1952 – Hufnagel – first mechanical „ball and cage“ valve implanted to the descending aorta
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Valve Surgery History With ECC 1960 – Harken – aortic valve replacement with the „ball and cage“ valve 1960 – Starr – replacement of the mitral valve
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Valve Surgery 1962 – Heimbecher – first use of the homograft in the mitral position 1967 – Ross – autograft of pulmonary valve in the aortic position 1971 – Carpentier – introduction of „bioprosthesis“, e.g. xenograft as a valve replacement 1983 – Carpentier –mitral valve plasty (reconstruction) concept
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Aortic Valve Stenosis Etiology –degenerative –congenital (bicuspid valve) –rheumatic Symptoms –angina pectoris –syncope –dyspnea
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Aortic valve Anatomy
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Stenosis of the aortic valve Indications for surgery –symptoms –asymptomatic – AVA 0,75cm2/m2 and less –pressure gradient 45 – 50mmHg –low EF is not a contraindication Procedure –Aortic valve replacement
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Aortic valve regurgitation Etiology –multiple Symptoms –None - very long time –angina pectoris –dyspnea
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Aortic valve regurgitation Indication for surgery –Symptoms –or first signs of LV function deterioration EF < 55 % Dilatation of LV (EDD > 75 mm, ESD > 50 mm) Procedure –Replacement –Reconstruction
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Aortic valve Replacement
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Aortic root enlargement – Manougian, Nicks
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Allograft, Pulmonary autograft
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Percutaneous or transapical implantation – 1965 Davies Lancet 1965;62:926—9.
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Endovascular or transapical AVR
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Copyright ©2009 The American Association for Thoracic Surgery Boodhwani M. et al.; J Thorac Cardiovasc Surg 2009;137:286-294 Repair-oriented functional classification of aortic insufficiency (AI) with description of disease mechanisms and repair techniques used
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Aortic Valve Repair
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Mitral stenosis Etiology –mostly rheumatic Symptoms –long time asymptomatic –dyspnea –embolization (atrial fib.) Indication for surgery –valve area less than 0,8 cm2/m2 –pressure gradient above 8-10 mmHg
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Mitral stenosis percutaneous balloon valvuloplasty „closed“ commissurotomy „open“ commissurotomy replacement
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Mitral stenosis – open commissurotomy
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Mitral stenosis – closed commissurotomy
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Mitral regurgitation Etiology rheumatic Degenerative mitral regurg. (fibroelastic, myxomatous, Barlow disease) Ischemic symptoms –dyspnea –a.fib., embolization
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Mitral regurgitation Indication –regurgitation more than 2-3/5 (echo, ventriculography) –LV dilatation (ESD more than 55 mm) –LV dysfunction, EF decrease Procedure –90% of degenerative mitral valves are amenable to repair –replacement with preservation of the subvalvular apparatus
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Mitral valve - anatomy
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Mitral valve repair – Valve Exposure
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Mitral valve repair- quadrangular resection of the posterior leaflet
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Chordal transfer
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Ischemic Mitral Regurgitation
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Undersized Annuloplasty
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Tricuspid valve
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Etiology Congenital – ASD, VSD, Ebstein disease pacemaker or automatic internal cardiac defibrillation (AICD) wires carcinoid lupus erythematosus, cor pulmonale, inferior myocardial infarction, scleroderma Functional- secondary to cardiac valvular pathology (mostly mitral valve disease) up to 20% of patients undergoing mitral valve replacement receive a tricuspid annuloplasty less than 2% require replacement
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Indication to surgery during left-sided valve surgery when TR annulus is dilated >21 mm/m2; >70 mm intra-operatively; >3.5 cm at TTE Symptomatic stenosis or regurg.
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De Vega plasty
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Rings and Bands
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Tricuspid valve repalcement
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Valve Prosthesis biological mechanical homograft autograft
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Mechanical vs biological lifelong anticoagulation therapy degeneration
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ESC guidelines 2007
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