Search Strategy and Video Inclusion Criteria
The keywords ‘HoLEP’, ‘laser enucleation’ and ’prostate enucleation’
were used to conduct a search on YouTube (http://www.youtube.com) on
December 16, 2020 without using any search filter. To reduce bias, all
researchers performed the search by clearing their browser’s search
history and disabling their location status. As the exclusion criteria
for the study, videos shorter than 4 minutes, repetitive videos, those
with irrelevant content (advertisements, patient references, slide-based
presentations, and lectures) and non-English language videos were
excluded from the study. A total of 1,416 videos were screened, and
1,156 videos were excluded from the study because they were non-English,
irrelevant or non-audio. A further 143 videos were excluded due to
duplication. Thus, the number of videos that were eligible was 117
(Figure 1).