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Revista chilena de cardiología

versión On-line ISSN 0718-8560

Resumen

SEGUEL, Enrique et al. Results of Surgical Mitral Valve Repair at Guillermo Grant Benavente Hospital, Concepción, Chile. Rev Chil Cardiol [online]. 2021, vol.40, n.1, pp.37-46. ISSN 0718-8560.  http://dx.doi.org/10.4067/S0718-85602021000100037.

Aim:

To describe the clinical characteristics, operative and long term results of surgical mitral valve repair.

Material and methods:

Retrospective study of the cohort of patients undergoing valve repair due to mitral regurgitation (MR) at the Guillermo Grant Benavente Hospital from 2009 to March 2020 (N = 206). Patients with primary and secondary MR were compared on clinical and echocardiographic characteristics, surgical techniques, associated surgeries, operative morbidity and mortality, survival and reinterventions up to May 30, 2020.

Results:

124 (60.2%) were men. The average age was 62.6±10.5 years. Type of MR was primary in 134 and secondary in 72. Compared to patients with primary MR, those with secondary MR had more coronary artery disease (69.4% versus 11.9%; p <0.001) and greater operative risk (logistic EuroSCORE 7.7±6, 7 versus 5.2±7.3; EuroSCORE II 3.4±4.8 versus 2,4±4.7; p<0.001). The most frequent mechanism of MR was type II in primary (65.7%) and type III (48.6%) followed by type I (30.6%) in secondary MR. Primary MR was corrected mainly with procedures to decrease prolapse (76.1%). In secondary MR the main technique used was the implantation of an exclusive ring (76.4%). There were 116 associated surgeries and 10(4.9%) conversions to valve replacement. There were 57 operative complications and 12(5.8%) patients died, 5 (3.7%) with primary MR and 7 (9.7%) with secondary MR. Overall survival at 5 years was 83.5% (90% in primary MR and 78% in secondary MR) and there were 3 reoperations.

Conclusions:

Valve repair surgery in both primary and secondary MR patients was associated to a low operative mortality and excellent results at 5 year post surgery.

Palabras clave : Surgery, cardiac; mitral valve; mitral insufficiency, mitral valve repair.

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