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Opioid Analgesic Use and Risk for Invasive Pneumococcal Diseases: A Nested Case–Control Study: Annals of Internal Medicine: Vol 168, No 6

Background: Although certain opioid analgesics have immunosuppressive properties and increase the risk for infections in animals, the clinical effects of prescription opioid use on infection risk among humans are unknown. Objective: To test the hypothesis that prescription opioid use is an independent risk factor for invasive pneumococcal disease (IPD). Design: Nested case–control study. Setting: Tennessee Medicaid database linked to Medicare and Active Bacterial Core surveillance system databases (1995 to 2014). Patients: 1233 case patients with IPD aged 5 years and older matched to 24 399 control participants by diagnosis date, age, and county of residence. Measurements: Opioid use was measured on the basis of pharmacy prescription fills. Invasive pneumococcal disease was defined by the isolation of Streptococcus pneumoniae from a normally sterile site. The odds of current opioid use were compared between the case and control groups, accounting for known IPD risk factors. Secondary analyses categorized opioid use by opioid characteristics, applied an IPD risk score to assure comparability between exposure groups, and analyzed pneumonia and nonpneumonia IPD cases separately. Results: Persons in the case group had greater odds than control participants of being current opioid users (adjusted odds ratio [aOR], 1.62 [95% CI, 1.36 to 1.92]). Associations were strongest for opioids that were long acting (aOR, 1.87 [CI, 1.24 to 2.82]), of high potency (aOR, 1.72 [CI, 1.32 to 2.25]), or were used at high dosages (50 to 90 morphine milligram equivalents [MME]/d: aOR, 1.71 [CI, 1.22 to 2.39]; ≥90 MME/d: aOR, 1.75 [CI, 1.33 to 2.29]). Results were consistent when the IPD risk score was taken into account and pneumonia and nonpneumonia IPD were analyzed separately. Limitations: Unmeasured confounding and measurement error, although sensitivity analyses suggested that neither was likely to affect results. Actual opioid use and other nonprescription use (such as illicit opioid use) were not measured. Conclusion: Opioid use is associated with an increased risk for IPD and represents a novel risk factor for these diseases. Primary Funding Source: National Institutes of Health.

Creating Entrustable Professional Activities to Assess Internal Medicine Residents in Training: A Mixed-Methods Approach: Annals of Internal Medicine: Vol 168, No 10

Background: Competency-based medical education has not advanced residency training as much as many observers expected. Some medical educators now advocate reorienting competency-based approaches to focus on a resident's ability to do authentic clinical work. Objective: To develop descriptions of clinical work for which internal medicine residents must gain proficiency to deliver meaningful patient care (for example, “Admit and manage a medical inpatient with a new acute problem”). Design: A modified Delphi process involving clinical experts followed by a conference of educational experts. Setting: The Royal College of Physicians and Surgeons of Canada. Participants: In phase 1 of the project, members of the Specialty Committee for Internal Medicine participated in a modified Delphi process to identify activities in internal medicine that represent the scope of the specialty. In phase 2 of the project, 5 experts who were scholars and leaders in competency-based medical education reviewed the results. Measurements: Phase 1 identified important activities, revised descriptions to improve accuracy and avoid overlap, and assigned activities to stages of training. Phase 2 compared proposed activity descriptions with published guidelines for their development and application in medical education. Results: The project identified 29 activities that qualify as entrustable professional activities. The project also produced a detailed description of each activity and guidelines for using them to assess residents. Limitation: These activities reflect the practice patterns of the developers and may not fully represent internal medicine practice in Canada. Conclusion: Identification of these activities is expected to facilitate modification of training and assessment programs for medical residents so that programs focus less on isolated skills and more on integrated tasks. Primary Funding Source: Southeastern Ontario Academic Medical Organization Endowed Scholarship and Education Fund and Queen's University Department of Medicine Innovation Fund.

Over-the-Counter Supplement Interventions to Prevent Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer-Type Dementia: A Systematic Review: Annals of Internal Medicine: Vol 168, No 1

Background: Optimal interventions to prevent or delay cognitive decline, mild cognitive impairment (MCI), or dementia are uncertain. Purpose: To summarize the evidence on efficacy and harms of over-the-counter (OTC) supplements to prevent or delay cognitive decline, MCI, or clinical Alzheimer-type dementia in adults with normal cognition or MCI but no dementia diagnosis. Data Sources: Multiple electronic databases from 2009 to July 2017 and bibliographies of systematic reviews. Study Selection: English-language trials of at least 6 months' duration that enrolled adults without dementia and compared cognitive outcomes with an OTC supplement versus placebo or active controls. Data Extraction: Extraction performed by a single reviewer and confirmed by a second reviewer; dual-reviewer assessment of risk of bias; consensus determination of strength of evidence. Data Synthesis: Thirty-eight trials with low to medium risk of bias compared ω-3 fatty acids, soy, ginkgo biloba, B vitamins, vitamin D plus calcium, vitamin C or β-carotene, multi-ingredient supplements, or other OTC interventions with placebo or other supplements. Few studies examined effects on clinical Alzheimer-type dementia or MCI, and those that did suggested no benefit. Daily folic acid plus vitamin B12 was associated with improvements in performance on some objectively measured memory tests that were statistically significant but of questionable clinical significance. Moderate-strength evidence showed that vitamin E had no benefit on cognition. Evidence about effects of ω-3 fatty acids, soy, ginkgo biloba, folic acid alone or with other B vitamins, β-carotene, vitamin C, vitamin D plus calcium, and multivitamins or multi-ingredient supplements was either insufficient or low-strength, suggesting that these supplements did not reduce risk for cognitive decline. Adverse events were rarely reported. Limitation: Studies had high attrition and short follow-up and used a highly variable set of cognitive outcome measures. Conclusion: Evidence is insufficient to recommend any OTC supplement for cognitive protection in adults with normal cognition or MCI. Primary Funding Source: Agency for Healthcare Research and Quality.

Antithyroid Drugs and Congenital Malformations: A Nationwide Korean Cohort Study: Annals of Internal Medicine: Vol 168, No 6

Background: Untreated or insufficiently treated Graves disease in pregnancy may pose risks to both mother and fetus. Antithyroid drugs (ATDs) are the treatment mainstay, but the potential teratogenic effect of these drugs has prompted clinicians to question the safe management of this vulnerable population. Objective: To examine the association between maternal prescriptions for ATDs and congenital malformations in live births. Design: Nationwide cohort study. Setting: Korean National Health Insurance database. Participants: A cohort of 2 886 970 completed pregnancies linked to live-born infants in 2 210 253 women between 2008 and 2014. Intervention: Maternal prescriptions for ATDs in the first trimester. Measurements: The risk for overall and organ-specific congenital malformations in offspring, with logistic regression models used to control for potential confounders. Results: 12 891 pregnancies (0.45%) were exposed to ATDs during the first trimester. The prevalence of malformations in exposed offspring was 7.27%, compared with 5.94% in offspring of women who were not prescribed ATDs during pregnancy (P < 0.001) (adjusted odds ratio, 1.19 [95% CI, 1.12 to 1.28]). Absolute increases in the prevalence of congenital malformations per 1000 live births were 8.81 cases (CI, 3.92 to 13.70 cases) for propylthiouracil alone, 17.05 cases (CI, 1.94 to 32.15 cases) for methimazole (MMI) alone, and 16.53 cases (CI, 4.73 to 28.32 cases) for propylthiouracil and MMI, compared with pregnancies without ATD prescriptions. In the MMI group, a high cumulative dose (>495 mg) during the first trimester was associated with an increased risk for malformations compared with a low dose (1 to 126 mg) (adjusted odds ratio, 1.87 [CI, 1.06 to 3.30]). Limitation: The study used a prescription claims database to assess ATD exposure. Conclusion: Exposure to ATDs during the first trimester was associated with increased risk for congenital malformations, particularly for pregnancies in which women received prescriptions for MMI or both ATDs. Primary Funding Source: None.

Should We Screen This Patient for Carotid Artery Stenosis?: Grand Rounds Discussion From Beth Israel Deaconess Medical Center: Annals of Internal Medicine: Vol 167, No 7

In July 2014, the U.S. Preventive Services Task Force (USPSTF) published a clinical guideline on screening for asymptomatic carotid artery stenosis. The guideline recommended against screening in asymptomatic adults, based primarily on the results of 3 large randomized trials (grade D recommendation). The principal screening test was carotid ultrasonography, and the intervention in the 3 trials was carotid endarterectomy for patients with stenosis exceeding 50% to 60%. In a meta-analysis, carotid endarterectomy reduced rates of 1) perioperative stroke, death, or subsequent ipsilateral stroke and 2) perioperative stroke, death, or any subsequent stroke. The corresponding absolute risk differences were –2.0% (95% CI, –3.3% to –0.7%) and –3.5% (CI, –5.1% to –1.8%), respectively. However, perioperative stroke and death were substantially less common among the 3 randomized trials than in contemporaneous cohort studies (1.9% vs. 3.3%). In addition to stroke or death in patients receiving carotid endarterectomy, a harm of screening included the risk for angiography prompted by abnormal results on carotid ultrasonography. In this article, 2 discussants address the risks and benefits of screening for carotid artery disease as well as how to apply the guideline to an individual patient who is deciding whether to be screened.

Death and Cardiac Arrest in U.S. Triathlon Participants, 1985 to 2016: A Case Series: Annals of Internal Medicine: Vol 167, No 8

Background: Reports of race-related triathlon fatalities have raised questions regarding athlete safety. Objective: To describe death and cardiac arrest among triathlon participants. Design: Case series. Setting: United States. Participants: Participants in U.S. triathlon races from 1985 to 2016. Measurements: Data on deaths and cardiac arrests were assembled from such sources as the U.S. National Registry of Sudden Death in Athletes (which uses news media, Internet searches, LexisNexis archival databases, and news clipping services) and USA Triathlon (USAT) records. Incidence of death or cardiac arrest in USAT-sanctioned races from 2006 to 2016 was calculated. Results: A total of 135 sudden deaths, resuscitated cardiac arrests, and trauma-related deaths were compiled; mean (±SE) age of victims was 46.7 ± 12.4 years, and 85% were male. Most sudden deaths and cardiac arrests occurred in the swim segment (n = 90); the others occurred during bicycling (n = 7), running (n = 15), and postrace recovery (n = 8). Fifteen trauma-related deaths occurred during the bike segment. Incidence of death or cardiac arrest among USAT participants (n = 4 776 443) was 1.74 per 100 000 (2.40 in men and 0.74 in women per 100 000; P < 0.001). In men, risk increased substantially with age and was much greater for those aged 60 years and older (18.6 per 100 000 participants). Death or cardiac arrest risk was similar for short, intermediate, and long races (1.61 vs. 1.41 vs. 1.92 per 100 000 participants). At autopsy, 27 of 61 decedents (44%) had clinically relevant cardiovascular abnormalities, most frequently atherosclerotic coronary disease or cardiomyopathy. Limitations: Case identification may be incomplete and may underestimate events, particularly in the early study period. In addition, prerace medical history is unknown in most cases. Conclusion: Deaths and cardiac arrests during the triathlon are not rare; most have occurred in middle-aged and older men. Most sudden deaths in triathletes happened during the swim segment, and clinically silent cardiovascular disease was present in an unexpected proportion of decedents. Primary Funding Source: Minneapolis Heart Institute Foundation.

Percutaneous Ablation Versus Partial and Radical Nephrectomy for T1a Renal Cancer: A Population-Based Analysis: Annals of Internal Medicine: Vol 169, No 2

Background: Stage T1a renal cell carcinoma (RCC) (tumors <4 cm) is usually curable. Nephron-sparing partial nephrectomy (PN) has replaced radical nephrectomy (RN) as the standard of care for these tumors. Radical nephrectomy remains the first alternative treatment option, whereas percutaneous ablation (PA), a newer, nonsurgical treatment, is recommended less strongly because of the relative paucity of comparative PA data. Objective: To compare PA, PN, and RN outcomes. Design: Observational cohort analysis using inverse probability of treatment–weighted propensity scores. Setting: Population-based SEER (Surveillance, Epidemiology, and End Results) cancer registry data linked to Medicare claims. Patients: Persons aged 66 years or older who received treatment for T1a RCC between 2006 and 2011. Interventions: PA versus PN and RN. Measurements: RCC-specific and overall survival, 30- and 365-day postintervention complications. Results: 4310 patients were followed for a median of 52 months for overall survival and 42 months for RCC-specific survival. After PA versus PN, the 5-year RCC-specific survival rate was 95% (95% CI, 93% to 98%) versus 98% (CI, 96% to 99%); after PA versus RN, 96% (CI, 94% to 98%) versus 95% (CI, 93% to 96%). After PA versus PN, the 5-year overall survival rate was 77% (CI, 74% to 81%) versus 86% (CI, 84% to 88%); after PA versus RN, 74% (CI, 71% to 78%) versus 75% (CI, 73% to 77%). Cumulative rates of renal insufficiency 31 to 365 days after PA, PN, and RN were 11% (CI, 8% to 14%), 9% (CI, 8% to 10%), and 18% (CI, 17% to 20%), respectively. Rates of nonurologic complications within 30 days after PA, PN, and RN were 6% (CI, 4% to 9%), 29% (CI, 27% to 30%), and 30% (CI, 28% to 32%), respectively. Ten percent of patients in the PN group had intraoperative conversion to RN. Seven percent of patients in the PA group received additional PA within 1 year of treatment. Limitations: Analysis of observational data may have been affected by residual confounding by provider or from selection bias toward younger, healthier patients in the PN group. Findings from this older study population are probably less applicable to younger patients. Use of SEER–Medicare linked files prevented analysis of patients who received treatment after 2011, possibly reducing generalizability to the newest PA, PN, and RN techniques. Conclusion: For well-selected older adults with T1a RCC, PA may result in oncologic outcomes similar to those of RN, but with less long-term renal insufficiency and markedly fewer periprocedural complications. Compared with PN, PA may be associated with slightly shorter RCC-specific survival but fewer periprocedural complications. Primary Funding Source: Association of University Radiologists GE Radiology Research Academic Fellowship and Society of Interventional Radiology Foundation.

Methods and Reporting Studies Assessing Fecal Microbiota Transplantation: A Systematic Review: Annals of Internal Medicine: Vol 167, No 1

Background: Fecal microbiota transplantation (FMT) could be a novel treatment option for several chronic diseases associated with altered gut microbiota. Purpose: To examine the conduct and reporting of studies assessing FMT. Data Sources: Cochrane Central Register of Controlled Trials, PubMed, EMBASE, and Web of Science from inception to 31 January 2017. Study Selection: Two reviewers independently examined titles and abstracts to identify all English-language reports of human clinical studies assessing the safety or efficacy of FMT. Data Extraction: Three reviewers independently assessed study types and characteristics and the reporting of important methodological components of the FMT intervention. Data Synthesis: Most (84%) of the 85 published reports found addressed the use of FMTs for Clostridium difficile infection or inflammatory bowel disease, and most (87%) were non–randomized controlled trials. Important methodological components that were not reported in published studies included the following: eligibility criteria for donors (47%), materials used for collecting stools and the period of collection (96%), methods used for conservation of stools (76%), the amount and type of stools used (for example, fresh or frozen), and duration of stool conservation (67%). Many (58%) did not report an analysis of microbiota composition. Limitations: Lack of universal consensus regarding the most important methodological components of FMT and inability to assess the actual conduct of studies and whether the publication process affected the completeness of reporting. Conclusion: Key components of FMT interventions, which are necessary to replicate and understand study findings about efficacy and safety, are poorly reported. Primary Funding Source: No specific funding.

Associations Between American Board of Internal Medicine Maintenance of Certification Status and Performance on a Set of Healthcare Effectiveness Data and Information Set (HEDIS) Process Measures

Background: The value of the American Board of Internal Medicine's (ABIM) Maintenance of Certification (MOC) program has been questioned as a marker of physician quality. Objective: To assess whether physician MOC status is associated with performance on selected Healthcare Effectiveness Data and Information Set (HEDIS) process measures. Design: Annual comparisons of HEDIS process measures among physicians who did or did not maintain certification 20 years after initial certification. Setting: Fee-for-service Medicare. Participants: 1260 general internists who were initially certified in 1991 and provided care for 85 931 Medicare patients between 2009 and 2012. Measurements: Annual percentage of a physician's Medicare patients meeting each of 5 HEDIS annual or biennial standards and a composite indicating meeting all 3 HEDIS diabetes standards. Results: Among the 1260 physicians, 786 maintained their certification from 1991 to 2012 and 474 did not. The mean annual percentage of HEDIS-eligible diabetic patients who completed semiannual hemoglobin A1c testing was 58.4% among physicians who maintained certification and 54.4% among those who did not (regression-adjusted difference, 4.2 percentage points [95% CI, 2.0 to 6.5 percentage points]; P < 0.001). Diabetic patients of physicians who maintained certification more frequently met the annual standard for low-density lipoprotein (LDL) cholesterol measurement (83.1% vs. 80.5%; regression-adjusted difference, 2.3 percentage points [CI, 0.6 to 4.1 percentage points]; P = 0.008) and all 3 diabetic standards (46.0% vs. 41.6%; regression-adjusted difference, 3.1 percentage points [CI, 0.5 to 5.7 percentage points]; P = 0.019). The regression-adjusted difference in biennial eye examinations was statistically insignificant (P = 0.112). Measures for LDL cholesterol testing in patients with coronary heart disease and biennial mammography were also met more frequently among physicians who maintained certification (79.4% vs. 77.4% and 72.0% vs. 67.8%, respectively), with regression-adjusted differences of 1.7 percentage points (CI, 0.2 to 3.3 percentage points; P = 0.032) and 4.6 percentage points (CI, 2.9 to 6.3 percentage points; P < 0.001), respectively. Limitation: Potential confounding by unobserved patient, physician, and practice characteristics; inability to determine clinical significance of observed differences. Conclusion: Maintaining certification was positively associated with physician performance scores on a set of HEDIS process measures. Primary Funding Source: American Board of Internal Medicine.

Association of Viral Suppression With Lower AIDS-Defining and Non–AIDS-Defining Cancer Incidence in HIV-Infected Veterans: A Prospective Cohort Study: Annals of Internal Medicine: Vol 169, No 2

Background: Viral suppression is a primary marker of HIV treatment success. Persons with HIV are at increased risk for AIDS-defining cancer (ADC) and several types of non–AIDS-defining cancer (NADC), some of which are caused by oncogenic viruses. Objective: To determine whether viral suppression is associated with decreased cancer risk. Design: Prospective cohort. Setting: Department of Veterans Affairs. Participants: HIV-positive veterans (n = 42 441) and demographically matched uninfected veterans (n = 104 712) from 1999 to 2015. Measurements: Standardized cancer incidence rates and Poisson regression rate ratios (RRs; HIV-positive vs. uninfected persons) by viral suppression status (unsuppressed: person-time with HIV RNA levels ≥500 copies/mL; early suppression: initial 2 years with HIV RNA levels <500 copies/mL; long-term suppression: person-time after early suppression with HIV RNA levels <500 copies/mL). Results: Cancer incidence for HIV-positive versus uninfected persons was highest for unsuppressed persons (RR, 2.35 [95% CI, 2.19 to 2.51]), lower among persons with early suppression (RR, 1.99 [CI, 1.87 to 2.12]), and lowest among persons with long-term suppression (RR, 1.52 [CI, 1.44 to 1.61]). This trend was strongest for ADC (unsuppressed: RR, 22.73 [CI, 19.01 to 27.19]; early suppression: RR, 9.48 [CI, 7.78 to 11.55]; long-term suppression: RR, 2.22 [CI, 1.69 to 2.93]), much weaker for NADC caused by viruses (unsuppressed: RR, 3.82 [CI, 3.24 to 4.49]; early suppression: RR, 3.42 [CI, 2.95 to 3.97]; long-term suppression: RR, 3.17 [CI, 2.78 to 3.62]), and absent for NADC not caused by viruses. Limitation: Lower viral suppression thresholds, duration of long-term suppression, and effects of CD4+ and CD8+ T-cell counts were not thoroughly evaluated. Conclusion: Antiretroviral therapy resulting in long-term viral suppression may contribute to cancer prevention, to a greater degree for ADC than for NADC. Patients with long-term viral suppression still had excess cancer risk. Primary Funding Source: National Cancer Institute and National Institute on Alcohol Abuse and Alcoholism of the National Institutes of Health.

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