Treating symptoms and reversing remodelling: clinical and echocardiographic 1-year outcomes with percutaneous mitral annuloplasty for mild to moderate secondary mitral regurgitation.
Eur J Heart Fail
; 23(11): 1971-1978, 2021 11.
Article
em En
| MEDLINE
| ID: mdl-34288287
ABSTRACT
AIMS:
To determine the effects of percutaneous mitral annuloplasty on symptoms, walk distance and left ventricular (LV) structure and function in patients with mild or moderate secondary mitral regurgitation (SMR). METHODS ANDRESULTS:
This was a pooled analysis of patients (n = 68) who, despite guideline-directed medical therapy had symptomatic heart failure (HF) with mild (n = 25) or moderate (n = 43) SMR treated with percutaneous mitral annuloplasty as part of the TITAN, TITAN II, or REDUCE-FMR trials. Primary outcomes were changes in symptoms, 6-min walk distance, and quality of life assessed by the Kansas City Cardiomyopathy Questionnaire (KCCQ) after 1 year. Secondary analyses included changes in LV structure and function. At 1 year, New York Heart Association class status was maintained (48%) or improved (46%) in most patients, mean KCCQ scores increased from baseline by 10 units [95% confidence interval (CI) 3 to17; P < 0.01] and mean 6-min walk test distance increased by 34 m (95% CI 12 to 57; P < 0.01). SMR grade improved in 25% of patients and was maintained in 58% of patients with changes in mean regurgitant volume of -7 mL (95% CI -11 to -3; P < 0.001), vena contracta -0.11 cm (95% CI -0.20 to -0.02; P < 0.05), and effective regurgitant orifice area -0.03 cm2 (95% CI -0.06 to -0.01; P < 0.05). There were non-significant improvements in LV ejection fraction and volumes. Survival over 1 year was 89% with no difference between mild (96%) and moderate (86%) SMR (log-rank P = 0.22). Progression-free survival was 70% (82% in mild vs. 63% in moderate SMR; P = 0.16). Freedom from HF hospitalization was 73% (87% in mild SMR vs. 66% in moderate SMR; P = 0.07).CONCLUSION:
Among patients with symptomatic HF and mild or moderate SMR on guideline-directed medical therapy, percutaneous mitral annuloplasty was associated with improvements in symptoms, SMR, a stabilization of LV structure and function, and high survival rates.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Anuloplastia da Valva Mitral
/
Insuficiência Cardíaca
/
Insuficiência da Valva Mitral
Tipo de estudo:
Diagnostic_studies
/
Guideline
/
Qualitative_research
/
Systematic_reviews
Limite:
Humans
Idioma:
En
Revista:
Eur J Heart Fail
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Alemanha