Surgical Mitral Valve Repair: What is the Gold Standard? Donald D. Glower, M.D. Duke University Medical Center lit review robot video CRT 2017 10 min
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Gold Standard Therapy Best available outcome Documentation Reliable, reproducible results
DMR: Carpentier Repair Techniques
DMR: 20-Year Reoperation Braunberger, Carpentier Circ 104,I-8, 2001
DMR: 12-Year Recurrent MR David JTCVS 130:1242, 2005
FMR Repair 2017 COMPLETE, UNDERSIZED / FLATTENED, RIGID RING
FMR: Recurrent MR CTSN TRIAL - 2 years Goldstein D NEJM Nov 9, 2015 REPAIR REPLACE P >=2+MR 59% 4% <0.001 Reoperation 3% 1% NS EF 43±12 38±12 LVESVI 53±28 61±39 0.19 Ring size 28, 25% no CABG, 12% subvalvular repair procedures Goldstein D NEJM Nov 9, 2015
FMR: Recurrent MR EVEREST II randomized trial 5 year results Presented at EuroPCR 2014 S Kar et al. MitraClip not FDA approved for FMR COAPT Trial ongoing
Surgical Mitral Repair Rates Posterior prolapse 90-95% Anterior prolapse 90% Bileaflet prolapse 90% IMR 90% (70%) FMR-nonischemic 90% (60%) Rheumatic 15% Acute endocarditis 30% Prior repair 30%
Surgical Mitral Repair Rate Gammie JF ATS 87;1431,2009
Surgical Repair Rate v Volume Bolling SF ATS 90;1904,2010
100% Mitral Repair? NORMAL MITRAL END STAGE MITRAL
Surgical DMR Early Outcomes Mortality 1% Stroke 1% Wound infection 0.3% Atrial fibrillation 20% Transfusion 0-2U LOS 5 days
Surgical Mitral Repair Unknowns New Gold Standards? - Need late results Nonresectional repairs Minimally invasive, Robotic approaches Different Gold Standards for Different Patients? DMR repair vs FMR replacement Pressures of Nonsurgical Therapies - Percutaneous More minimally invasive surgery?
Surgical Mitral Repair Gold Standard Median Sternotomy On pump Carpentier resectional techniques (DMR) Low but real morbidity/mortality 20 year results (DMR) 10-15% reoperation 10 year results (DMR) 10-30% >=3+MR 20-60% >=2+MR