Inadvertent direct atrial capture and pure his capture can result in variable findings during parahis pacing manoeuvre (PHP). Understanding the results and positioning the pacing bipole towards ventricular aspect (distal his region) is helpful to avoid ambiguous results during PHP.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8637088PMC
http://dx.doi.org/10.1002/joa3.12650DOI Listing

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