Correlation between the electrocardiogram amplitude detected by an implantable cardiac monitor and the implantation depth.
Ann Noninvasive Electrocardiol
; 29(1): e13102, 2024 01.
Article
em En
| MEDLINE
| ID: mdl-38088202
ABSTRACT
INTRODUCTION:
Implantable cardiac monitors (ICMs) primarily use R-R intervals in subcutaneous electrocardiograms (ECGs) to detect arrhythmias. Therefore, reliable detection of R-wave amplitude by an ICM is vital. Since ICMs detect subcutaneous ECGs, the impact of the implantation depth should be assessed. METHODS ANDRESULTS:
This study investigated the influence of ICM depth on R-wave (ICM-R) amplitude on an ECG generated by an ICM (JOT Dx; Abbott). Overall, 58 patients who underwent ICM implantation at Kamagaya General Hospital from May 2022 to April 2023 were retrospectively reviewed. The depth-position was measured using ultrasound imaging after implantation. The depth of the ICM did not show any correlation with ICM-R amplitude (r = -.0141, p = .294). However, the distance between the ICM and the heart surface showed a significant correlation with ICM-R amplitude (r = -.581, p < .001). Body weight (r = -.0283, p = .033) and body mass index (r = -.0342, p = .009) were associated with ICM-R amplitude. S wave in the V1 -lead was also associated with ICM-R amplitude (r = .481, p < .001). After multivariate analysis, the distance between the ICM and heart surface and the S wave in V1 were independent determinants for the ICM-R amplitude.CONCLUSION:
The ICM-R amplitude may be higher with the ICM implanted deeper.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Eletrocardiografia Ambulatorial
/
Eletrocardiografia
Limite:
Humans
Idioma:
En
Revista:
Ann Noninvasive Electrocardiol
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Japão