Changes in Physician Decision Making after CT: A Prospective Multicenter Study in Primary Care Settings.

Purpose To determine the effect of computed tomography (CT) results on physician decision making in three common clinical scenarios in primary care. Materials and Methods This research was approved by the institutional review board (IRB) and was HIPAA compliant. All physicians consented to participate with an opt-in or opt-out mechanism; patient consent was waived with IRB approval. In this prospective multicenter observational study, outpatients referred by primary care providers (PCPs) for CT evaluation of abdominal pain, hematuria, or weight loss were identified. Prior to CT, PCPs were surveyed to elicit their leading diagnosis, confidence in that diagnosis (confidence range, 0%-100%), a rule-out diagnosis, and a management plan if CT were not available. Surveys were repeated after CT. Study measures were the proportion of patients in whom leading diagnoses and management changed (PCP management vs specialist referral vs emergency department transfer), median changes in diagnostic confidence, and the proportion of patients in whom CT addressed rule-out diagnoses. Regression analyses were used to identify associations between study measures and site and participant characteristics. Specifically, logistic regression analysis was used for binary study measures (change in leading diagnosis, change in management), and linear regression analysis was used for the continuous study measure (change in diagnostic confidence). Accrual began on September 5, 2012, and ended on June 28, 2014. Results In total, 91 PCPs completed pre- and post-CT surveys in 373 patients. In patients with abdominal pain, hematuria, or weight loss, leading diagnoses changed after CT in 53% (131 of 246), 49% (36 of 73), and 57% (27 of 47) of patients, respectively. Management changed in 35% (86 of 248), 27% (20 of 74), and 54% (26 of 48) of patients, respectively. Median absolute changes in diagnostic confidence were substantial and significant (+20%, +20%, and +19%, respectively; P ≤ .001 for all); median confidence after CT was high (90%, 88%, and 80%, respectively). PCPs reported CT was helpful in confirming or excluding rule-out diagnoses in 98% (184 of 187), 97% (59 of 61), and 97% (33 of 34) of patients, respectively. Significant associations between primary measures and site and participant characteristics were not identified. Conclusion Changes in PCP leading diagnoses and management after CT were common, and diagnostic confidence increased substantially. © RSNA, 2016 Online supplemental material is available for this article.

Iron Deficiency Anemia Due to High-dose Turmeric.

Turmeric is increasingly studied as an anti-inflammatory and anti-neoplastic agent. It binds to ferric iron in the gut and causes iron deficiency in mice. We report here a possible case of iron deficiency anemia in a human taking turmeric. A 66-year-old physician treated himself for an osteoarthritis flare after steroids with six turmeric extract capsules (538 mg) daily, to help with inflammation. During this time, his hemoglobin never rose above 12 and his iron and ferritin levels were consistent with iron deficiency. Upper and lower endoscopy and Hemoccult™ studies were negative. Two weeks after stopping the turmeric and continuing his usual iron supplement, his hemoglobin had returned to normal, with normalizing iron studies. Turmeric was associated with significant iron deficiency anemia, consistent with the binding of available iron in the gut and the prevention of absorption. This resolved after the turmeric was stopped, consistent with animal studies. This may be the first case of documented iron deficiency anemia in people due to turmeric supplements. Given the widespread use of turmeric and curcumin supplements across many illnesses, further attention is warranted.

Impact of duty hour regulations on medical students' education: views of key clinical faculty.

BACKGROUND: Teaching faculty have valuable perspectives on the impact of residency duty hour regulations on medical students. OBJECTIVE: The objective of this study was to elicit faculty views on the impact of residency duty hour regulations on medical students' educational experience on inpatient medicine rotations. DESIGN AND PARTICIPANTS: We conducted a National Survey of Key Clinical Faculty (KCF) at 40 internal medicine residency programs affiliated with U.S. medical schools using a random sample stratified by National Institutes of Health funding and program size. MEASUREMENTS: This study measures KCF opinions on the effect of duty hour regulations on students' education. RESULTS: Of 154 KCF targeted, 111 responded (72%). Fifty-two percent of KCF reported worsening in the overall quality of students' education compared to just 2.7% reporting improvement (p < 0.001). In multivariate analysis adjusted for gender, academic rank, specialty, and years of teaching experience, faculty who spent >/=15 hours per week teaching were more likely to report worsening in medical students' level of responsibility on inpatient teams [odds ratio (OR) 3.1; 95% confidence interval (CI) 1.3-7.6], ability to follow patients throughout hospitalization (OR 3.2; 95% CI 1.3-7.9), ability to develop working relationships with residents (OR 2.3; 95% CI 1.0-5.2), and the overall quality of students' education (OR 3.3; 95% CI 1.4-8.1) compared to faculty who spent less time teaching. CONCLUSION: Key clincal faculty report concerns about the impact of duty hour regulations on aspects of medical students' education in internal medicine. Medical schools and residency programs should identify ways to ensure optimal educational experiences for students within duty hour requirements.

The reported validity and reliability of methods for evaluating continuing medical education: a systematic review.

PURPOSE: To appraise the reported validity and reliability of evaluation methods used in high-quality trials of continuing medical education (CME). METHOD: The authors conducted a systematic review (1981 to February 2006) by hand-searching key journals and searching electronic databases. Eligible articles studied CME effectiveness using randomized controlled trials or historic/concurrent comparison designs, were conducted in the United States or Canada, were written in English, and involved at least 15 physicians. Sequential double review was conducted for data abstraction, using a traditional approach to validity and reliability. RESULTS: Of 136 eligible articles, 47 (34.6%) reported the validity or reliability of at least one evaluation method, for a total of 62 methods; 31 methods were drawn from previous sources. The most common targeted outcome was practice behavior (21 methods). Validity was reported for 31 evaluation methods, including content (16), concurrent criterion (8), predictive criterion (1), and construct (5) validity. Reliability was reported for 44 evaluation methods, including internal consistency (20), interrater (16), intrarater (2), equivalence (4), and test-retest (5) reliability. When reported, statistical tests yielded modest evidence of validity and reliability. Translated to the contemporary classification approach, our data indicate that reporting about internal structure validity exceeded reporting about other categories of validity evidence. CONCLUSIONS: The evidence for CME effectiveness is limited by weaknesses in the reported validity and reliability of evaluation methods. Educators should devote more attention to the development and reporting of high-quality CME evaluation methods and to emerging guidelines for establishing the validity of CME evaluation methods.

Physicians' understanding of the regulation of dietary supplements.

BACKGROUND: After passage of the Dietary Supplement Health and Education Act, herbs and other supplements were allowed to be sold to the public without Food and Drug Administration (FDA) approval or premarket evaluation. Data suggest that many people are unaware of this lack of governmental oversight and may rely on their physicians for education in this arena. This study was designed to evaluate physicians' level of understanding of dietary supplement regulation and the adverse event reporting process and to determine whether an interactive online curriculum could aid in improving knowledge. METHODS: A multicenter online educational intervention was developed and administered to physicians at 15 internal medicine residency programs throughout the United States between March 1, 2006, and June 30, 2006. Pretest performance was used to measure baseline knowledge, while posttest performance compared with pretest performance measured the effectiveness of the educational intervention. RESULTS: A total of 335 physicians completed the module. Ninety percent of those completing the module were residents, while 10% were attending physicians. Baseline knowledge of dietary supplement regulatory issues was poor. The total average pretest score was only 59% (986/1675). The average score rose to 91% (1526/1675) after completion of the curriculum (P<.001). With regard to specific content areas, about one third of physicians were unaware that dietary supplements did not require FDA approval or submission of safety and efficacy data before being marketed. Similar percentages believed that there are regulations in place to ensure supplement quality. Most physicians were unaware that serious adverse events due to the use of supplements should be reported through the FDA MedWatch system. CONCLUSIONS: Physician knowledge of dietary supplement regulation and adverse event reporting is poor. An online didactic module may improve knowledge and potentially enhance patient-physician communication regarding the use of such products.

Effect of residency duty-hour limits: views of key clinical faculty.

BACKGROUND: To determine the effect of duty-hour limitations, it is important to consider the views of faculty who have the most contact with residents. METHOD: We conducted a national survey of key clinical faculty (KCF) at 39 internal medicine residency programs affiliated with US medical schools selected by random sample stratified by federal research funding and program size to elicit their views on the effect of duty-hour limitations on residents' patient care, education, professionalism, and well-being and on faculty workload and satisfaction. RESULTS: Of 154 KCF surveyed, 111 (72%) responded. The KCF reported worsening in residents' continuity of care (87%) and the physician-patient relationship (75%). Faculty believed that residents' education (66%) and professionalism, including accountability to patients (73%) and ability to place patient needs above self-interests (57%), worsened, yet 50% thought residents' well-being improved. The KCF reported spending more time providing inpatient services (47%). Faculty noted decreased satisfaction with teaching (56%), ability to develop relationships with residents (40%), and overall career satisfaction (31%). In multivariate analysis, KCF with 5 years of teaching experience or more were more likely to perceive a negative effect of duty hours on residents' education (odds ratio, 2.84; 95% confidence interval, 1.15-7.00). CONCLUSIONS: Key clinical faculty believe that duty-hour limitations have adversely affected important aspects of residents' patient care, education, and professionalism, as well as faculty workload and satisfaction. Residency programs should continue to look for ways to optimize experiences for residents and faculty within the confines of the duty-hour requirements.

Medical residents' knowledge of dietary supplements.

INTRODUCTION: The widespread use of complementary and alternative medicine modalities such as dietary supplements has prompted many medical schools to offer courses covering such topics. To date, little is known about the impact of these courses on medical graduates' knowledge. This study was designed to evaluate resident physicians' level of understanding of popular dietary supplement regulation and to determine whether an interactive online curriculum could aid in improving such knowledge. METHODS: A multicenter online educational intervention was developed and administered to physicians at 15 internal medicine residency programs throughout the United States, between March 1, 2006 and June 30, 2006. Pretest performance was used to measure baseline knowledge of commonly used dietary supplements. Posttest performance compared with pretest performance measured the effectiveness of the educational intervention. RESULTS: A total of 335 physicians completed the module. Baseline knowledge of dietary supplements was low (average pretest score 59.7%). More than one-third of respondents were unaware of the reasons for use of saw palmetto and black cohosh. Results for questions on safety and drug-supplement interactions were similarly low. Only 57% of physicians knew that kava kava has been associated with hepatitis. Only 15% were aware that St. John's Wort can lower cyclosporine levels. With regards to knowledge of efficacy, only 36% were aware that fish oil has been shown to lower triglyceride levels. After completion of the curriculum, scores improved significantly (P < 0.001) in all question/content areas. CONCLUSIONS: Residents' knowledge of dietary supplements is poor. An online didactic module may improve knowledge and potentially enhance patient-physician communication regarding the use of such products.

Disparities in osteoporosis screening between at-risk African-American and white women.

BACKGROUND: Despite a lower prevalence of osteoporosis in African-American women, they remain at risk and experience a greater mortality than white women after sustaining a hip fracture. Lack of recognition of risk factors may occur in African-American women, raising the possibility that disparities in screening practices may exist. OBJECTIVE: To determine whether there is a difference in physician screening for osteoporosis in postmenopausal, at-risk African-American and white women. METHODS: We conducted a retrospective chart review at an urban academic hospital and a suburban community hospital. Subjects included 205 African-American and white women, age > or = 65 years and weight < or = 127 pounds, who were seen in Internal Medicine clinics. The main outcome was dual-energy x-ray absorptiometry (DXA) scan referral. We investigated physician and patient factors associated with referral. Secondary outcomes included evidence of discussion of osteoporosis and prescription of medications to prevent osteoporosis. RESULTS: Significantly fewer African-American than white women were referred for a DXA scan (OR 0.39%, 95% confidence interval (CI): 0.22 to 0.68). Physicians were also less likely to mention consideration of osteoporosis in medical records (0.27, 0.15 to 0.48) and to recommend calcium and vitamin D supplementation for this population (0.21, 0.11 to 0.37). If referred, African-American women had comparable DXA completion rates when compared with white women. No physician characteristics were significantly associated with DXA referral patterns. CONCLUSIONS: Our study found a significant disparity in the recommendation for osteoporosis screening for African-American versus white women of similar risk, as well as evidence of disparate osteoporosis prevention and treatment, confirming results of other studies. Future educational and research initiatives should target this inequality.

Current evidence for the use of emerging radiologic technologies for disease screening.

Recent technologic advances in the field of radiology have resulted in the availability of several new tests with potential applications for disease screening. Presently, these tests are being marketed directly to patients as noninvasive means to provide peace of mind that they are disease free. Such assurance is appealing to many individuals, and some are willing to spend up to 1500 dollars to choose from a menu of available diagnostic options. Given that a physician's referral is unnecessary, many healthcare providers are unaware that such testing has taken place until their patients present to them with abnormal test results. In this review, we examine the evidence supporting the use of electron beam computed tomography for coronary artery disease screening, spiral computed tomography of the chest for lung cancer screening, computed tomographic colonography for colon cancer screening, and total-body computed tomography for general screening. Although some of these modalities show promise for the future, there is insufficient evidence to support the use of any of these testing methods for secondary prevention. The potential for harm associated with false-positive test results, false-negative test results, undue anxiety, and radiation exposure exists but requires further study to quantify actual risk.

A critical evaluation of Internet marketing of products that contain ephedra.

OBJECTIVE: To evaluate information contained within Internet sites that advertise and market dietary supplements containing ephedra. MATERIAL AND METHODS: We conducted an Internet search to identify Web sites advertising weight-loss supplements that contained ephedra. Between July 7 and July 18, 2002, 4 search engines were used by entering the term herbal weight loss. Outcome measures included disclosure of potential adverse effects of or contraindications to ephedra-containing supplements, disclosure of ephedra alkaloid dosage, and presence of misleading or incorrect information. RESULTS: Thirty-two products and advertisements were identified and systematically evaluated for deviance from truth-in-advertising standards. Of the 32 Web sites analyzed, 13 (41%) failed to disclose potential adverse effects or contraindications to supplement use. Seventeen (53%) did not reveal the dosage of ephedra alkaloids that was recommended. More importantly, 11 sites (34%) contained incorrect or misleading statements, some of which could directly result in serious harm to consumers. CONCLUSION: If dietary supplements containing ephedra are to continue to be marketed freely, substantial reform in advertising regulation and enforcement is warranted.

Evaluation of an audience response system for the continuing education of health professionals.

INTRODUCTION: Continuing medical education (CME) for physicians and other health personnel is becoming increasingly important in light of recertification requirements. Interactive learning is more effective and may be useful in a continuing education setting. This study examines the use of an audience response system (ARS) as an interactive learning tool for health care providers. METHOD: We conducted a national randomized controlled trial to evaluate the utility of an ARS to enhance attention and learning. Speakers at 42 clinical round table (CRT) programs in five regions across the United States were randomized to "use" or "no use" of an ARS during their lectures. We surveyed participants to collect data regarding presentation and speaker quality, impressions of the ARS, and knowledge of the material presented. We collected information from speakers regarding ease of use and overall opinions of the ARS. RESULTS: A total of 283 surveys were completed (164 from participants using the ARS and 119 from participants not using the ARS). ARS participants rated the quality of the presentation, the quality of the speaker, and their level of attention more highly than non-ARS participants (p < .05). Knowledge scores (of material presented) were not significantly different between the two groups. Both participants and speakers felt that the ARS was easy to use and preferred to use the system in future CRTs. DISCUSSION: Participants in CRTs with the ARS rated presentation and speaker quality more favorably than those participants in CRTs without the tool. Participant knowledge scores, however, were not significantly different. ARSs may provide easy-to-use tools to enhance attention and enthusiasm in CME learners.