This is an excellent article by Harvard Professor, Amy C Edmondson. In it, she states:

“My central argument is that hospitals don’t learn from failure because of two interrelated organisational issues. Firstly, at the frontlines of patient care in hospitals the interpersonal climate often inhibits speaking up with questions, concerns, and challenges that might have contributed to catching and correcting human error before patients are harmed.² Moreover, the culture of medicine more generally discourages admission of error, thereby greatly diminishing a given hospital’s potential to learn from mistakes, both consequential or not. Secondly, features of the work design and culture of most hospitals make workarounds and quick fixes the dominant response to failures, rather than root cause analysis and systematic problem solving,⁷ which contribute to organisational improvement and innovation.”

See the link below for the full article:

https://qualitysafety.bmj.com/content/13/suppl_2/ii3.full