Qualitative and quantitative evaluation of a new wearable device for ECG and respiratory Holter monitoring

Recent advances in wearable technology make continuous cardiorespiratory monitoring possible, with potential applications in assessment of cardiopulmonary patients, healthy subjects and athletes. The aim of the present study was to qualitatively and quantitatively evaluate a new wearable device (Lea...

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Bibliographic Details
Published in:	International journal of cardiology Vol. 272; pp. 231 - 237
Main Authors:	Sarmento, Antonio, Vignati, Carlo, Paolillo, Stefania, Lombardi, Carolina, Scoccia, Alessandra, Nicoli, Flavia, Mapelli, Massimo, Leonardi, Alessandra, Ossola, Dario, Rigoni, Rudy, Agostoni, Piergiuseppe, Aliverti, Andrea
Format:	Journal Article
Language:	English
Published:	Netherlands Elsevier B.V 01-12-2018
Subjects:	Aged Aged, 80 and over Apnea Clothing - standards Cross-Sectional Studies ECG monitoring Electrocardiography, Ambulatory - standards Female Heart Rate - physiology Humans Male Middle Aged Respiratory Mechanics - physiology Respiratory monitoring, wearable device Wearable Electronic Devices - standards ECG monitoring Apnea Respiratory monitoring, wearable device
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Summary:	Recent advances in wearable technology make continuous cardiorespiratory monitoring possible, with potential applications in assessment of cardiopulmonary patients, healthy subjects and athletes. The aim of the present study was to qualitatively and quantitatively evaluate a new wearable device (Learn Inspire Free Entertain = L.I.F.E.) by embedding in a compression shirt a 12‑lead ECG system and 5 respiratory sensors. Thirty cardiorespiratory patients and ten healthy subjects were studied for 24 h during their usual life activities. In 8 healthy subjects, simultaneous measurements of the device and of an ergo-spirometer were performed during different levels of ventilation in five different body positions. The quality of ECG signals in terms of measurability of heart rate, P wave, QRS complex and ST segment, was analyzed by four expert cardiologists/respiratory physiologists using an arbitrary 1–5 scale. The sum of the respiratory signals was used to calculate the respiratory rate, inspiratory time and relative changes of tidal volume. These parameters were compared to ergo-spirometer measurements. Median quality value was >3 for heart rate, QRS complex, ST segment and P wave (except in L3, aVL, aVF, V1 and V2 leads). Median quality of respiratory traces was >4 in patients and between 3 and 4 in healthy subjects. The respiratory monitoring of respiratory rate and inspiratory time was accurate in all body positions. Tidal volumes were underestimated due to a high level of ventilation. The L.I.F.E. device provides an accurate continuous monitoring of cardiorespiratory signals during the 24 h both in normal subjects and cardiorespiratory patients. •New wearable complete cardiorespiratory monitoring•12-Lead ECG system and 5 respiratory sensors ambulatory simultaneous recording•Excellent quality of ECG and respiratory signals
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0167-5273 1874-1754
DOI:	10.1016/j.ijcard.2018.06.044