Resident fatigue: is there a patient safety issue?

Area of Science:

• Medical error analysis
• Patient safety research
• Resident physician work hours

Background:

• The 80-hour resident workweek was implemented in 2003 due to concerns about resident fatigue impacting patient care.
• While fatigue is known to impair performance, its direct impact on clinical errors remains debated.
• Discussions regarding further work hour restrictions for residents are ongoing.

Purpose of the Study:

• To investigate the role of resident fatigue in sentinel events (major medical errors).
• To analyze root cause analyses of sentinel events for evidence of resident fatigue.
• To inform future decisions on resident work hour regulations.

Main Methods:

• Retrospective review of 110 sentinel events at a single health system (2004-2008).
• Root cause analysis of identified sentinel events.
• Review of the Joint Commission's national sentinel event databank (1995-2007) and literature search.

Main Results:

• No evidence of resident fatigue involvement was found in the 110 sentinel events analyzed at the institution.
• The Joint Commission's national databank, comprising 4,817 sentinel events, also showed no documented evidence of resident fatigue.
• Current data does not support a direct link between resident fatigue and increased medical errors.

Conclusions:

• The study's findings do not support the claim that resident fatigue increases medical errors.
• Clinical evidence demonstrating a direct relationship between resident fatigue and compromised patient safety is required before further work hour restrictions.
• Further research is recommended, and the Joint Commission should consider monitoring sentinel events for resident fatigue.