CineECG for visualization of changes in ventricular electrical activity during ischemia.
J Electrocardiol
; 83: 50-55, 2024.
Article
em En
| MEDLINE
| ID: mdl-38325009
ABSTRACT
BACKGROUND:
CineECG offers a visual representation of the location and direction of the average ventricular electrical activity throughout a single cardiac cycle, based on the 12lead ECG. Currently, CineECG has not been used to visualize ventricular activation patterns during ischemia.PURPOSE:
To determine the changes in ventricular activity during acute ischemia with the use of CineECG, and relating this to changes in the ECG.METHODS:
Continuous ECG's during percutaneous coronary intervention with prolonged balloon inflation from the STAFF III database were analyzed with CineECG at baseline and every 10 s throughout the first 150 s of balloon inflation. The CineECG direction was determined for the initial QRS-complex, terminal QRS-complex, ST-segment and T-wave. Changes in the CineECG were quantified by calculating the Δangle between the direction at baseline and the direction at every 10 s of inflation. Additionally, the root mean square amplitude (rmsA) of the ST-segment was computed.RESULTS:
94 patients were included. At start inflation, the median Δangle was 14.7° [7.5-33.4], 21.8° [11.4-34.2], 20.6° [8.0-43.9], and 23.5° [11.8-48.0] for the initial QRS-complex, terminal QRS-complex, ST-segment and T-wave, respectively. Meanwhile, the median rmsA increased from 0.039 mV [0.027-0.058] at baseline to 0.045 mV [0.033-0.075] at start of inflation.CONCLUSIONS:
CineECG was able to detect immediate changes in ventricular electrical activity during induced ischemia, while changes in the ST-segment of the ECG were still subtle. Therefore, CineECG might support the early detection of acute ischemia, even before distinct ECG changes become visible.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Isquemia Miocárdica
/
Intervenção Coronária Percutânea
Tipo de estudo:
Screening_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article