Reduction of radiation exposure during transcatheter edge-to-edge mitral valve repair.
Catheter Cardiovasc Interv
; 99(4): 1259-1267, 2022 03.
Article
em En
| MEDLINE
| ID: mdl-35084083
ABSTRACT
BACKGROUND:
Transcatheter mitral valve repair is an increasingly used therapy for mitral regurgitation which requires fluoroscopic guidance. Limiting radiation exposure during lengthy procedures is important for both patient and operator safety. This study aimed to investigate radiation dose during contemporary use of MitraClip implantation and the effects of a dose reduction program.METHODS:
A total of 115 patients who underwent MitraClip implantation were prospectively enrolled in a single-center observational study. During the inclusion period, our institution adopted a radiation dose reduction program, comprising lowering of fluoroscopy pulse rate and image target dose. The first 58 patients were treated with conventional fluoroscopy settings, while the following 57 patients underwent the procedure with the newly implemented low dose protocol.RESULTS:
Radiation dose area product significantly decreased after introduction of the low dose protocol (693 [366-1231] vs. 2265 [1517-3914] cGy·cm2 , p < 0.001). After correcting for fluoroscopy time, gender and body mass index, the low dose protocol emerged as a strong negative predictor of radiation dose (p < 0.001), reducing dose area product by 64% (95% confidence interval [57-70]). Device time, device success, and procedural safety did not differ between the normal dose and low dose group. Furthermore, the low dose protocol was not associated with an increased incidence of a combined endpoint consisting of death, repeat intervention, or heart surgery during 12 months follow-up.CONCLUSION:
Reduction of radiation exposure during transcatheter mitral valve repair by 64% is feasible without affecting procedural success or safety.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Exposição à Radiação
/
Implante de Prótese de Valva Cardíaca
/
Procedimentos Cirúrgicos Cardíacos
/
Insuficiência da Valva Mitral
Tipo de estudo:
Etiology_studies
/
Guideline
/
Observational_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Catheter Cardiovasc Interv
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Alemanha