Effectiveness of educational video on deaf people's knowledge and skills for cardiopulmonary resuscitation: a randomized controlled trial.
Nelson Miguel Galindo Neto, Guilherme Guarino de Moura Sá, Lívia Moreira Barros and 3 others
PMID 37216652WHAT IT FOUND
A Brazilian Sign Language video increased deaf students' CPR knowledge more than a nurse-led lecture, and practical scores were higher at 15 days.
Use accessible visual teaching, but this was school-based and short follow-up.
Key findings
01The video group had more correct CPR knowledge answers than the lecture group immediately after teaching and again at 15 days.
02On simulated CPR skill, the lecture group was better at baseline, the groups were similar immediately after teaching, and the video group was higher at 15 days.
03At 15 days, the video group had more correct answers on victim positioning, rescuer rotation, and compression speed.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was done with deaf students in three schools in Fortaleza, Brazil, so it may not apply to deaf people who are not students or to other regions. Of 149 recruited, 36 did not attend the 15-day post-test, leaving 113 analysed. Follow-up was only 15 days, so longer-term retention is unknown. Participants and the researcher were not blinded, although skill raters were. The video was shown once without time for questions, so it tested a single viewing rather than a supported teaching session. Skill was assessed on a simulator, not during a real cardiac arrest, and compression speed remained low at 15 days. The control group had better skill scores at baseline, so the later skill difference needs to be read alongside that starting point. Allocation was by student subgroups rather than individual randomisation.
The easy way to misread this
Do not conclude that one viewing of a sign-language video is enough to prepare a deaf person to perform CPR in an emergency. The study measured knowledge and simulator skill after a single video and a 15-day check, not real resuscitation outcomes, and compression speed remained poor.