David J.D. Earn, PhD; Daihai He, PhD; Mark B. Loeb, MD, MSc; Kevin Fonseca, PhD; Bonita E. Lee, MD, MSc; Jonathan Dushoff, PhD
Controversy exists as to whether schools should close during influenza epidemics. Researchers developed a mathematical model of H1N1 influenza transmission in Alberta, Canada, by using virologic data, census data, climate records, and school calendars. The model suggests that school closure reduced influenza transmission among schoolchildren by more than 50%, attenuating the first peak of the H1N1 influenza epidemic. Reopening of schools initiated the second peak. Closing schools may be an effective strategy to slow the spread of influenza during epidemics.
Ann Intern Med. 2012;156(3):173-181. doi:10.7326/0003-4819-156-3-201202070-00005
Laura-Mae Baldwin, MD, MPH; Katrina F. Trivers, PhD; Barbara Matthews, MBA; C. Holly A. Andrilla, MS; Jacqueline W. Miller, MD; Donna L. Berry, RN, PhD; Denise M. Lishner, MSW; Barbara A. Goff, MD
No professional organization recommends routine screening of asymptomatic women for ovarian cancer. Using case vignettes, researchers surveyed primary care physicians about ovarian cancer screening beliefs and practices. One in 3 physicians believed that ovarian cancer screening with ultrasonography or cancer antigen 125 was effective. Substantial proportions of physicians indicated that they would offer ovarian cancer screening to low-risk (6.3%) and medium-risk (24%) women. These data suggest that some physicians may screen women for ovarian cancer despite the lack of evidence of net benefit to patients, which potentially leads to patient harm and unnecessary use of health care resources.
Ann Intern Med. 2012;156(3):182-194. doi:10.7326/0003-4819-156-3-201202070-00006
Derek R. MacFadden, MD; Eugene Crystal, MD; Andrew D. Krahn, MD; Iqwal Mangat, MD; Jeffrey S. Healey, MD, MSc; Paul Dorian, MD; David Birnie, MBChB; Christopher S. Simpson, MD; Yaariv Khaykin, MD; Arnold Pinter, MD; Kumaraswamy Nanthakumar, MD; Andrew J. Calzavara, MSc; Peter C. Austin, PhD; Jack V. Tu, MD, PhD; Douglas S. Lee, MD, PhD
Differences in the use and outcomes of implantable cardioverter-defibrillators (ICDs) between men and women have not been fully examined. Data from a registry in Ontario, Canada, indicate that women were just as likely as men to have ICDs implanted after referral to a cardiac electrophysiologist. However, women were more likely than men to have complications after implantation and were less likely to receive appropriate ICD-delivered shocks and therapies. The risks and benefits of ICDs differ between women and men. Future studies should consider sex-stratified reporting of results and aim to better identify women at risk for sudden death.
Ann Intern Med. 2012;156(3):195-203. doi:10.7326/0003-4819-156-3-201202070-00007
Jennifer W. Mack, MD, MPH; Angel Cronin, MS; Nathan Taback, PhD; Haiden A. Huskamp, PhD; Nancy L. Keating, MD, MPH; Jennifer L. Malin, MD, PhD; Craig C. Earle, MD, MSc; Jane C. Weeks, MD, MSc
Guidelines recommend end-of-life care planning for patients with incurable cancer and a life expectancy of less than 1 year. This study of 2155 patients with stage IV lung or colorectal cancer found that, although nearly three quarters of patients discussed end-of-life care with physicians before they died, discussions generally occurred late in the course of the disease, during acute hospitalizations, and with physicians other than oncologists. Oncologists documented end-of-life care discussions with only 27% of the patients they saw. These results suggest opportunities to improve end-of-life care planning for patients with advanced cancer.
Ann Intern Med. 2012;156(3):204-210. doi:10.7326/0003-4819-156-3-201202070-00008
Advisory Committee on Immunization Practices
The Advisory Committee on Immunization Practices (ACIP) presents the recommended Adult Immunization Schedule for 2012. This schedule has been approved by the ACIP, American Academy of Family Physicians, American College of Obstetricians and Gynecologists, American College of Physicians, and American College of Nurse-Midwives.
Ann Intern Med. 2012;156(3):211-217. doi:10.7326/0003-4819-156-3-201202070-00388
Amir Qaseem, MD, PhD, MHA; Linda L. Humphrey, MD, MPH; Donna E. Sweet, MD; Melissa Starkey, PhD; Paul Shekelle, MD, PhD; for the Clinical Guidelines Committee of the American College of Physicians
The American College of Physicians (ACP) considered evidence for the comparative effectiveness and safety of oral type 2 diabetes drugs to develop guidelines for the use of these agents. The ACP recommends that clinicians prescribe an oral drug for patients diagnosed with type 2 diabetes when diet and exercise fail to adequately control hyperglycemia, use monotherapy with metformin as first-line oral therapy unless contraindications exist, and add a second drug to metformin therapy when monotherapy fails. The ACP found no strong evidence to support that one class of drug is better than another as a second drug.
Ann Intern Med. 2012;156(3):218-231. doi:10.7326/0003-4819-156-3-201202070-00011
Dean Paschal, MD, BS
A physician working at the urgent care clinic at the New Orleans Veterans Administration Hospital after Hurricane Katrina observed that clinical evaluations that previously took weeks to complete in traditional outpatient settings could be accomplished in a few hours or days. The author proposes duplicating this experience in academic medical centers by affiliating an urgent care clinic with an ambulatory procedure unit and quick access to subspecialty consultants.
Ann Intern Med. 2012;156(3):232-233. doi:10.7326/0003-4819-156-3-201202070-00012
Powel Kazanjian, MD
Frederick Novy was a U.S. physician, medical researcher, and microbiologist who devised culture techniques to visualize anaerobic bacteria, parasites, and spirochetes. This essay describes how Novy's research on the cause of unexplained deaths in his laboratory rats, begun in 1909, was halted in 1918 when study materials mysteriously vanished from his laboratory. Persistence, excellent laboratory notes, and new technological discoveries enabled Novy to return to his experiments in 1951 at age 88 when a box containing the missing test tubes was found. Novy identified that a virus rather than a bacterium had killed his laboratory rats.
Ann Intern Med. 2012;156(3):234-237. doi:10.7326/0003-4819-156-3-201202070-00013
David N. Fisman, MD, MPH
Earn and colleagues' article in this issue demonstrates that school closure may be an effective strategy for reducing the spread of influenza during pandemics. The editorialist notes that decision makers will need to consider the virulence of future pandemics and weigh the benefits and costs of social distancing to limit the spread of influenza.
Ann Intern Med. 2012;156(3):238-240. doi:10.7326/0003-4819-156-3-201202070-00014
Pamela S. Douglas, MD; Lesley H. Curtis, PhD
MacFadden and colleagues' study in this issue demonstrates similar ICD implantation rates among men and women after referral for electrophysiologic evaluation but higher rates of complications in women. The editorialists note that available research limits our ability to fully assess the value of ICDs in women and that a one-size-fits-all approach to ICDs may not be appropriate.
Ann Intern Med. 2012;156(3):241-242. doi:10.7326/0003-4819-156-3-201202070-00015
Sandra Adamson Fryhofer, MD
In this issue, the ACIP presents the recommended Adult Immunization Schedule for 2012. The editorialist discusses the rationale behind key changes between this and previous ACIP recommendations.
Ann Intern Med. 2012;156(3):243-245. doi:10.7326/0003-4819-156-3-201202070-00389
Damon S. Tweedy, MD
One of my first patients as a medical intern was an avowed racist. His body failing, he turned to our hospital for help only to find me, a black man, as one of the doctors entrusted to extend his life. The year was 2003, but for a time, it felt more like 1963.
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Ann Intern Med. 2012;156(3):252. doi:10.7326/0003-4819-156-3-201202070-00027
Keith M. Swetz, MD; Arif H. Kamal, MD
Ann Intern Med. 2012;156(3):ITC2-1. doi:10.7326/0003-4819-156-3-201202070-01002
Ann Intern Med. 2012;156(3):I-28. doi:10.7326/0003-4819-156-3-201202070-00001
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Ann Intern Med. 2012;156(3):I-36. doi:10.7326/0003-4819-156-3-201202070-00004
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