Evaluation of Electrocardiographic Measurements by High Density Electrode ECG

Condition(s) studied

Investigational drug(s) / intervention(s)

HD ECG: This experimental procedure is a passive, non-invasive, high-density surface ECG recording using 128 skin electrodes.The electrodes are positioned on strips of 10 electrodes to be prepared with adhesive tape and coated with conductive gel before installation on the patient. The total duration of the acquisition is 10 to 30 minutes.

Conventional 12-lead ECG: This standard 12-lead ECG is defined on the HD ECG, from electrodes F13, G3, G14, H5, H15, H25 corresponding to the precordial electrodes. 4 limb electrodes will be added for the frontal leads. Thus, the HD and 12-lead ECGs will be obtained simultaneously.

Study summary

Cardiac electrical activity is detected on the body surface with conventional electrocardiography involving 12 leads (ECG 12). A limitation of the current ECG technique is that recordings are obtained from only 6 independent precordial leads pairs ; which may miss cardiac potentials from spatially limited regions. More extensive sampling of the body surface may contribute to additional clinical information. The present study investigates the additional sensitivity of ECG using 128 body surface leads (High Density (HD) ECG) in measuring global or regional cardiac activity.

Eligibility

Primary outcome measure(s)

• Identification of the "amplitude" electrical criteria by HD ECG — Day 0
  These electrical criteria are measured in millivolt (mV)
• Identification of the "cardiac time" electrical criteria by HD ECG — Day 0
  Defined by the auricular cardiac time, ventricular depolarization and repolarization time
• Identification of the "duration" electrical criteria by HD ECG — Day 0
  These criteria are measured in milliseconds (ms)
• Identification of "anatomical locations" electrical criteria by HD ECG — Day 0
  Defined by the position of the electrodes

Trial sites (11)

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