Key result
A non-invasive method using bipolar orthogonal surface leads successfully recorded a measurable His-Purkinje system signal in 10 out of 17 subjects (58.8%), showing good agreement with invasive methods.
Why the study?
Can His-Purkinje system activity be accurately recorded using a non-invasive method with bipolar orthogonal surface leads compared to invasive recordings?
Observational (n=17)
Can His-Purkinje system activity be accurately recorded using a non-invasive method with bipolar orthogonal surface leads compared to invasive recordings?
A non-invasive method using bipolar orthogonal surface leads can successfully record His-Purkinje system activity, showing good agreement with invasive methods.
May support non-invasive His-Purkinje recording; hypothesis-generating and requires prospective validation before clinical adoption.
A simple non-invasive method for recording of activity from the His-Purkinje system (HPS) is described. The electrical activity was derived from bipolar orthogonal surface leads. The signal was strongly amplified, bandpass filtered, delayed and averaged in an analogue averager before presentation. The equipment is mobile. The characteristics of the equipment are described. There was good agreement between invasive and non-invasive recordings. Out of seventeen subjects studied ten had a measurable HPS signal. Muscle tension and deep breathing tended to obscure the non-invasive recordings. The best lead for the measurements was lead X.
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Ringqvist et al. (1979) reported an observational. Non-invasive recording of His-Purkinje system activity vs. Invasive recordings was evaluated on Measurable His-Purkinje system (HPS) signal. A non-invasive method using bipolar orthogonal surface leads successfully recorded a measurable His-Purkinje system signal in 10 out of 17 subjects (58.8%), showing good agreement with invasive methods.
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