Prospective methods for identifying perioperative risk-assessment methods for patient safety over 20 years: a systematic review.
Anita A J Heideveld-ChevalkingH CalsbeekJ HoflandW J H J MeijerinkA P WolffPublished in: BJS open (2019)
The direct (in-person) observation appears to be the primary prospective risk-assessment method that currently may best help to target perioperative hazards. This is a reliable method and covers a broad spectrum of perioperative risk areas.