Current Accreditation Council for Graduate Medical Education (ACGME) duty hour regulations limit resident work hours (no more than 80 hours per week or 24-28 consecutive hours on duty) in an effort to improve both resident and patient safety. This nationally representative survey found that over 90% of US adults disagree with the current duty hour policies, with 66% of respondents supporting additional limits on duty hours (to no more than 40 hours per week or 12 consecutive hours).

Like many clinical areas, a variety of system factors can influence diagnostic error rates in neuroradiology. This study included 564 neuroradiologic examinations with diagnostic error and 1,019 without error. Diagnostic errors were associated with longer interpretation times, higher shift volume, and weekend interpretation.

Extended and overnight shifts are associated with higher adverse event rates and burnout. This mini review summarizes the impact of overnight shifts on nurses' health, patient and public safety, and organizational costs (e.g., those related to nurse turnover). Organizational strategies to promote nurses' health and reduce errors are also summarized, ranging from low-cost measures such as breaks for physical activity during the shift to high-cost measures such as referral to sleep specialists or paid transportation home.

The Accreditation Council for Graduate Medical Education (ACGME) restrictions on resident work hours have improved resident well-being, but the impact on education, clinical and patient safety outcomes is less clear. This meta-analysis found that the 2003 ACGME restrictions (limiting residents to 80-hour work weeks and 28-hour shifts) was associated with an 11% reduction in mortality; however, there was no significant difference in mortality after the 2011 restrictions (limiting first-year residents to 16-hour shifts). These findings reinforce the impact of extended resident physician work hours and patient morbidity and mortality. The authors also recommend that future research examine the relationship between work hours and patient outcomes among other health care workers.

Fatigue and sleep deprivation of anesthesia providers can result in decreased non-technical skills and psychomotor functioning. This study of 1,200 anesthesia and intensive care trainees in Europe describes the impact of work-related fatigue on well-being, commuting, and potential for medical errors. Two-thirds of respondents reported making or nearly making a medical error after working long hours. In addition to implementing shorter work schedules, the authors also encourage a culture where it is acceptable to admit fatigue, and where resting is encouraged.

Occupational fatigue (e.g., stress, physical fatigue) can have deleterious effects on patients, staff, and health systems. This article describes a conceptual framework to better understand the factors contributing to occupational fatigue and downstream implications (e.g., poor patient safety, employee burnout, lower retention, and higher turnover).

Despite widespread improvement efforts, medication administration errors (MAE) remain a patient safety problem. In this study, nurses at one Australian hospital provided a reflection as to why they believed an MAE occurred and these reflections were subsequently analyzed using a human factors framework. Individual characteristics, nature of the work, and physical environment factors were identified as contributing to MAE and represent areas for improvement.

A simulation study in 2017 showed anesthesia residents performed worse when sleep-deprived after working a night shift. In this quantitative study of more than 5,000 European anesthesiologists, participants reported that working night shifts reduced their quality of life and put their patients at risk. Few reported institutional support (e.g., training, fatigue monitoring) for night shift workers. Importantly, this study reports on perceived risk to patients, not actual patient risk.

Clinicians often work long hours with irregular schedules, which can contribute to fatigue. This scoping review of 30 studies identified several patient safety risks associated with fatigue in anesthesia providers, including deterioration in non-technical skills, increased medication errors, poor attention and psychomotor decline.

The Accreditation Council for Graduate Medical Education (ACGME) in the United States limits resident physicians' workweek to 80 hours. Several studies have investigated the association between first year residents (i.e., interns, PGY1), worked hours and patient safety. This study includes residents beyond the first year (i.e., PGY2+). Nearly 5,000 PGY2+ residents reported the number of hours worked, patient safety outcomes, and resident health and outcomes. Working more than 60 hours in a week significantly increased the risk of a medical error resulting in patient death. The authors suggest weekly workweek limits should be significantly reduced, such as they are in the United Kingdom.

Fatigue and sleep deprivation among healthcare workers can increase the risk of errors. This prospective study including 60 attending surgeons from departments of surgery or obstetrics and gynecology at eight hospitals found that sleep deficiency was not associated with greater numbers of errors during procedures performed the next day. However, non-technical skill performance, situational awareness, and decision making were adversely associated with sleep deficiency.  

A 2022 study found that non-first off-pump coronary artery bypass graft (CABG) had a higher risk of complications than first cases, proposing prior workload as a contributing cause. This commentary responds to that study, proposing system and organizational factors, not just the individual surgeon, be taken into consideration as contributing causes.

Fostering a culture of safety is an essential component of improving patient safety and health care quality. This systematic review of seven articles identified a negative relationship between job-related stress among nurses and patient safety culture. Studies also reported that factors such as fatigue, workload, burnout, and workplace violence contribute to job-related stress and resulted in decreased patient safety culture.

Fatigue is a known contributor to adverse events and near misses. Researchers summarized 38 studies on the impact of fatigue on nurses’ medication administration errors (MAE) or near misses. Thirty-one studies reported that long hours, shift work, overtime, and/or poor sleep quality contributed to MAE and near miss, but results and methods of measuring fatigue were inconsistent.

Patient safety improvements must consider the complexities of care delivery to achieve lasting change. This commentary discusses recent evidence examining the effect of duty hour limit adjustments. The authors highlight challenges regarding research design on this medical education policy change and how it affects learner and patient experience. They suggest caution in applying the study conclusions. 

Several countries have resident duty hour (RDH) restrictions and there are numerous publications examining the impact of RDH on patient safety. This study used two online discussion forums (one primarily in the United States and the other in Canada) to assess resident perceptions of RDH. Themes included its impact on residents’ education and clinician well-being, and, worryingly, discussions of not reporting RDH violations.