Resident education: Findings from overall analysis
Overall analysis of all 56 articles included in our final sample revealed 40 positive or neutral outcomes and 18 negative outcomes regarding resident education. We paired neutral and positive results because we thought that both constitute a positive effect, because the expectation is that duty hours reduction will reduce the number of residents' operating cases. Eighteen studies reported a neutral or positive effect on the number of operating-room cases,4,13,22,23,26–28,30,41,43,44,47,50–55 whereas 11 papers reported a negative effect.12,16–18,20,31–34,48,59 Five studies reported a positive effect on either the surgical board examination or American Board In Training Examination (ABSITE) scores.22,23,30,50,61 No study reported a negative effect on examination performance. Seven studies4,18,31,41,48,54,59 used surveys to determine the effect of the duty hours restrictions on operating-room experience, and 418,31,48,59 of these (57%) reported a negative effect. Investigators examined residents' logbooks or electronic databases in 22 studies12,13,16,17,20,22,23,26–28,30,32–34,43,44,47,50–53,55 to determine the effect on the number of operative cases; of these 22, only 712,16,17,20,32–34 (30.5%) reported a negative effect.
Resident education: Findings from high-quality papers
The 16 high-quality studies included in our final sample reported 20 positive educational outcomes and only 4 negative educational outcomes (Table 2). Thirteen high-quality studies reported a positive or neutral effect on the number of operative cases,13,22,23,27,28,30,43,44,50–53,55 and only 2 high-quality studies reported a negative effect.16,34
Five high-quality studies reported a positive or neutral effect on examination scores,22,23,30,50,61 and no reports documented any decline in the ABSITE or the qualifying examination scores after the implementation of the duty hours restriction. Two other positive outcomes were reported: Gelfand and associates28 reported no change in clinic attendance, and Schneider and colleagues50 showed that residents were preparing better by reading about cases before the surgery. Gelfand and associates28 also reported one of the negative outcomes: a reduction in the time available for educational activities. Spencer and Teitelbaum53 described the second negative outcome in education: the significant decrease of residents' attendance at the outpatient surgery clinic.
Resident education: Summary
The two major themes in the reports that studied the effect of the ACGME duty hours on resident education were the effect on operating-room experience and the effect on examination scores. None of the 56 studies reported a worsening of exam scores. The majority of studies, especially the high-quality ones, reported a neutral to positive effect on number of operative cases, suggesting that the ACGME duty hours restrictions had a positive effect overall on resident education.
Psychological well-being of surgical residents: Findings from overall analysis
Our analysis identified six major outcomes related to residents' psychological well-being and lifestyle: (1) quality of life, (2) participation in extracurricular activities, (3) job satisfaction, (4) motivation, (5) burnout scores, and (6) medical students' opinions of surgeons' lifestyles. Eighteen studies reported an improvement in residents' quality of life after implementation of the ACGME duty hours restrictions.4,8–10,17,21,24,29–31,35,40,41,45,46,49,54,61 Three studies reported decreased resident burnout scores10,30,45; three reported a more favorable view among medical students of surgeons' lifestyles8,24,35; two reported an improvement in residents' job satisfaction49,61; one reported an increase in extracurricular activities49; one reported an increase in motivation to work30; and one reported reduced psychological distress.61 No studies examining the impact of the ACGME duty hours on surgical resident psychological well-being and lifestyle reported any negative themes or outcomes.
Psychological well-being of surgical residents: Findings from high-quality papers
Two of the high-quality studies examined residents' psychological well-being (the majority of studies examining the psychological well-being of surgical residents used nonvalidated surveys, so we did not consider their results to provide high-quality evidence). The authors of one of the high-quality reports, Zaré and colleagues,61 used two validated questionnaires, the Symptom Checklist-90 (SCL-90-R) and the Perceived Stress Scale (PSS), to assess psychological well-being. They surveyed all the residents at four different U.S. surgical residency programs five to six months after the institution of the new duty hours restrictions. They used a control group of 108 surgical residents from the same institutions who had completed the surveys before the duty hours restrictions, and another control group of 960 people representing the general U.S. population. The results showed reduced psychological distress, as determined by the SCL-90-R, which evaluates a wide range of psychological problems; however, these authors discovered the same level of stress perception, as determined by the PSS, which measures how stressful the situation is in an individual life. The authors of the other high-quality report, Hutter and collaborators,30 used the Maslach Burnout Inventory and the Herzberg Motivation Dimensions, both well-validated instruments, and found reduced resident burnout scores and increased resident motivation after the implementation of restrictions on duty hours. Their study also showed an improved quality of life for residents outside and inside the hospital.
Psychological well-being of surgical residents: Summary
The psychological well-being of residents improved after the new duty hours regulations were introduced, as evidenced by the fact that none of the 56 studies in our final sample reported negative themes. However, the majority of studies that examined residents' well-being did not use a strong methodology.
Surgical faculty members: Findings from overall analysis
Twenty studies examined the effect of duty hours restrictions on surgical faculty.7,10,15,18,19,21,24,29,30,37–39,43,46,48–50,57–59 Themes emerging from studies of the effect on surgical faculty included faculty work hours, faculty academic and clinical productivity, availability of time for faculty to teach, job satisfaction among faculty, faculty quality of life, and shift of workload from residents to faculty. The main effect on faculty results from the inability of residents to complete all the tasks assigned to them within the time allowed, which, in turn, requires faculty to pick up some of the tasks assigned to residents. When faculty complete work assigned to residents, they have less time available for nonclinical activities such as research and teaching. A large number of the studies report faculty members' opinions; these survey studies, specifically on faculty opinions regarding the effect of the duty hours restrictions on residents and patient care, highlighted three themes: (1) satisfaction with residents' training, (2) continuity of patient care, and (3) and quality of patient care.
Overall, five studies reported an increase in faculty work hours and workload.15,19,48,50,58 Three studies reported, respectively, that faculty had less time available for teaching19,24,58; that the quality of life was worsening for surgical faculty19,29,30; that work was shifting from residents to faculty15,19,37; and that faculty experienced increased job dissatisfaction.19,50,58 Two studies showed no change in faculty productivity after the introduction of the new duty hours restrictions.37,43 One study showed no change in hours worked.43 No study reported a reduced workload for faculty, increased time for faculty to teach, or an improvement in faculty quality of life or job satisfaction.
Fourteen studies examined faculty opinion regarding resident training,7,15,19,21,24,29,30,37,39,46,48,49,57,59 and all reported that faculty were dissatisfied with resident training. Further, 10 studies reported faculty dissatisfaction with patient care,7,15,21,29,30,37,48,49,57,59 and 6 showed faculty dissatisfaction with continuity of patient care.7,18,29,30,57,59 Only 2 studies reported no change in faculty views of patient care,46,58 and no study reported neutral or positive effects on faculty opinions regarding the continuity of care.
Surgical faculty members: Findings from high-quality papers
Only three high-quality papers included themes related to faculty and the new resident duty hours30,43,50 (we did not consider the majority of studies reporting faculty outcomes to be of high quality because they were mostly nonvalidated survey studies performed at single institutions7,10,15,18,19,21,24,29,37–39,46,48,49,57–59). Hutter and colleagues30 used Web-based surveys using validated instruments such as the Maslach Burnout Inventory and the Herzberg Motivation Dimensions as well as taped one-to-one interviews and daily time cards before and after the institution of the duty hours restrictions. They reported that surgical faculty were less satisfied with surgical training, with the quality of patient care, and with continuity of patient care. They also reported a decrease in the quality of faculty lifestyle. One high-quality study reported increased faculty work hours, as measured by actual hours worked.50 The same study showed less job satisfaction among surgical faculty, as measured by a survey.50 The two positive outcomes coming from high-quality studies, by Malangoni and colleagues,43 showed no change in hours worked nor any change in productivity.
Surgical faculty members: Summary
In summary, studies examining the effect of duty hours restrictions on faculty showed a negative impact. Many of these studies reported that faculty have a negative view of the effects of the ACGME duty hours. In fact, the majority of the negative themes arose from lower-quality studies that examined faculty opinions.
Discussion and Conclusions
Traditionally, training in the surgical specialties has relied on long work hours to ensure the proper acquisition of procedural skills and to maintain the long-held tradition of “patient ownership.”1 Patient safety in surgery is believed to be closely related to the ethos of patient ownership that results from a close continuity of care.1 Thus, many surgical program directors were skeptical of and resistant to the new duty hours restrictions, fearing that they would have a deleterious effect on continuity of care. Program directors and other surgical educators worried that the restrictions would negatively affect surgical residents' education (because of the loss of operating-room time) and thus compromise patient safety. Surgical residency programs attempted to adapt to the new duty hours through the following interventions: implementing night shifts, replacing in-hospital calls with home calls, hiring physician extenders, combining and cross-covering services, transitioning junior residents to more senior roles with greater responsibility, increasing the number of residents, and redesigning the residency program to include different residency models.
These interventions have not ended the controversy surrounding duty hours restrictions, as is apparent from the publication of the recent IOM report, Resident Duty Hours: Enhancing Sleep, Supervision, and Safety,62 which recommends limiting continuous hours of work to 16 per day, providing a sleep period of 5 hours during longer shifts, reducing workload, and strictly adhering to an 80-hour workweek—all to further enhance patient safety and reduce the incidence of medical errors. The ACS position,63 presented to the IOM in March 2008, expressed concern that restrictions on resident duty hours would result in poorly trained surgeons, which would, in turn, reduce patient safety and quality of care. In fact, the ACS is reporting an increase in the number of residents applying for fellowships, which it surmises reflects a lack of confidence among surgical graduates in the era of reduced duty hours.63 The trend of more surgeons entering fellowships, the ACS argues, could lead to the provision of more highly specialized surgeons and fewer general surgeons.
This systematic review examined studies published during the five years immediately after the U.S.-wide implementation of the ACGME duty hours restrictions. Specifically, we examined the effects of the new restrictions on resident education, resident lifestyle, and surgical faculty. We applied established criteria to distinguish between high-quality studies and less methodologically robust studies, and we assigned less value to those studies that used nonvalidated opinion surveys (a common methodology of many reports in the literature).
Two of the most debated subjects in relation to the new duty hours and the surgical environment have been continuity of care and resident education—in particular, resident operating-room experience. Resident education, as expressed by operating-room experience and scores on examinations, was not adversely affected by the new duty hours. The effect on operating-room experience was reported in 13 high-quality studies to have been positive (no. = 2) or neutral (no. = 11), and only 2 high-quality studies reported a decline in the operating-room experience after the implementation of the new duty hours restrictions. Likewise, no studies reported declines in examination scores. All of the studies we reviewed reported that the quality of resident life improved considerably after the implementation of duty hours restrictions.
The finding that the level of operating-room experience did not decrease should not be unexpected. Studies conducted in Europe, where the number of work hours is reduced to fewer than 60 a week and is well monitored, report a good level of operating-room experience.64,65 In a survey of 239 Dutch surgical residents working an average of 55 hours per week, the mean number of cases performed was 195 per year (range 35–450).64 Youngson and colleagues65 reported an increase in the number of operative cases and improved supervision in the United Kingdom, in the era of a 58-hour workweek.
Clearly, resistance and dissatisfaction exist among surgical faculty with respect to the ACGME duty hours restrictions: 76% of the negative themes we found in this review derived from surveys of surgical faculty. Faculty perceived negative effects with respect to resident training, quality of patient care, and continuity of patient care. They also reported an increase in their workload and more job dissatisfaction in comparison with the period before the restriction of duty hours.
Although we systematically reviewed the literature published on the effects of ACGME duty hours restrictions, the results of this analysis must be interpreted with caution. One of the major determinants of successful adaptation to a reduction in duty hours is the implementation of interventions that do not significantly affect program costs. Most of the 56 studies we reviewed did not outline clearly the interventions used to deal with reduced duty hours. Possibly, the institutions that hired physician extenders and implemented other interventions were those with better results, including the maintenance of the same operating-room experience. Also, institutions that wish to attract good residents are unlikely to publish studies describing a decline in operating-room experience. An additional major bias is that residents at some institutions may not have reported their working hours accurately and were, therefore, not truly adhering to the 80-hour workweek. Finally, some degree of reviewer bias is possible, although we selected the studies rated as high quality using established criteria.
The fact that fatigue can contribute to medical error is extensively documented in the literature, but, notably, not in surgical patients taken care of by surgeons. Some evidence supports a detrimental effect of fatigue on surgical residents' cognitive and motor skills,66–68 but no published literature links fatigue directly to adverse outcomes for surgical patients. However, continuity of care is also a major patient safety mechanism, especially in the fast-paced surgical environment. In our opinion, continuity of care should be a major focus of future work, using technology and new techniques to ensure the proper transfer of patient care. Future studies should also document the effect of resident fatigue on surgical patient outcomes.
Although duty hours restrictions were associated with neutral effects on operating-room experience and on exam scores, these are only two aspects of the determination of surgical competency. The majority of studies looked at only these two measures. Whether duty hours restrictions will really produce more competent surgeons is difficult to say. Future studies should examine the effect of duty hours restrictions on other measures of competency, such as professionalism, humanism, and/or communication skills. Also, surgical educators in the future should focus more attention on new technologies such as simulation and Web-based learning tools to optimize the learning experience in surgical residency programs.
Limiting duty hours is a paradigm shift in the surgical environment, and continued change will take time. The ACGME task force examining the effect of the 2003 duty hours has recently completed its work,69 and the results will soon be public. Whether or not the task force recommends reducing duty hours further, the concerns of surgical faculty must be addressed. This study clearly demonstrates that surgical educators and faculty perceive a negative impact of duty hours. The discrepancy between the opinion of surgical faculty and the ACGME, if not resolved, may result in an increase in resident training duration or even in streaming residents into subspecialized training programs—both of which would adversely affect the surgical workforce. Although the reduction in surgical residents' duty hours seems to have had generally positive outcomes, more time is needed to anchor this change in the culture of surgical education.
The authors would like to thank Dr. Frank Davidoff from the Institute of Health Care Improvement (Boston, Massachusetts), Dr. Yvonne Steinert from the McGill Center of Medical Education (Montréal, Quebec, Canada), and Dr. Kadriye O. Lewis and Dr. Raymond Baker from the University of Cincinnati (Cincinnati, Ohio) for their input and advice. They also thank Giovanna Badia from the Royal Victoria Hospital Library (Montreal, Quebec, Canada) for her help in the literature search.
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† In MEDLINE, we first searched for articles about residents, beginning with the controlled vocabulary terms (MeSH terms) “physicians,” “education, medical, graduate,” or “internship and residency”; we also performed a keyword search of the title and abstract fields for the words “resident,” “junior doctor,” and “junior physician.” We next searched for articles about work hours by using the MeSH terms “workload” or “personnel staffing and scheduling,” in addition to conducting a keyword search using “work adj5 hour,” “doctor adj5 hour,” “physician adj5 hour,” “dut adj5 hour,” “resident adj5 hour,” “shift adj5 hour,” “workload,” “work schedule,” and “night float.” We used the following MeSH terms to search for articles related to personal well-being, patient care, or learning: “work schedule tolerance,” “sleep disorders,” “chronobiology,” “chronobiology disorders,” “fatigue,” “mental fatigue,” “patient care,” “treatment outcome,” “learning,” or “professional competence.” We searched the literature relating to surgical contexts using the MeSH terms “specialities, surgical,” or “surgical procedures, operative,” as well as the subheading “surgery” and by performing a keyword search for “surgical” or “surger*.” We combined the residents, surgical, work hours, and personal well-being/patient care/learning searches, using the Boolean operator “and.” We also performed an additional search combining our residents, surgical, and work hours searches with a keyword search for “education” as well as with a subheading search for “education.” We used a similar search strategy for the EMBASE, BIOSIS Previews, Cochrane Central Register of Controlled Trials databases, and ERIC. Cited Here...© 2011 Association of American Medical Colleges