Cardiovascular screening in low-income settings using a novel 4-lead smartphone-based electrocardiograph (D-Heart®).
Int J Cardiol
; 236: 249-252, 2017 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-28215467
ABSTRACT
BACKGROUND:
MHealth technologies are revolutionizing cardiovascular medicine. However, a low-cost, user-friendly smartphone-based electrocardiograph is still lacking. D-Heart® is a portable device that enables the acquisition of the ECG on multiple leads which streams via Bluetooth to any smartphone. Because of the potential impact of this technology in low-income settings, we determined the accuracy of D-Heart® tracings in the stratification of ECG morphological abnormalities, compared with 12-lead ECGs.METHODS:
Consecutive African patients referred to the Ziguinchor Regional Hospital (Senegal) were enrolled (n=117; 69 males, age 39±11years). D-Heart® recordings (3 peripheral leads plus V5) were obtained immediately followed by 12 lead ECGs and were assessed blindly by 2 independent observers. Global burden of ECG abnormalities was defined by a semi-quantitative score based on the sum of 9 criteria, identifying four classes of increasing severity.RESULTS:
D-Heart® and 12-lead ECG tracings were respectively classified as normal 72 (61%) vs 69 (59%); mildly abnormal 42 (36%) vs 45 (38%); moderately abnormal 3 (3%) vs 3 (3%). None had markedly abnormal tracings. Cohen's weighted kappa (kw) test demonstrated a concordance of 0,952 (p<0,001, agreement 98,72%). Concordance was high as well for the Romhilt-Estes score (kw=0,893; p<0,001 agreement 97,35%). PR and QRS intervals comparison with Bland-Altman method showed good accuracy for D-Heart® measurements (95% limit of agreement ±20ms for PR and ±10ms for QRS).CONCLUSIONS:
D-Heart® proved effective and accurate stratification of ECG abnormalities comparable to the 12-lead electrocardiographs, thereby opening new perspectives for low-cost community cardiovascular screening programs in low-income settings.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pobreza
/
Doenças Cardiovasculares
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Programas de Rastreamento
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Telemedicina
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Eletrocardiografia
/
Smartphone
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Adult
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Female
/
Humans
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Male
/
Middle aged
País/Região como assunto:
Africa
Idioma:
En
Revista:
Int J Cardiol
Ano de publicação:
2017
Tipo de documento:
Article