Gerald W. Smetana, MD; Marc Schermerhorn, MD *; Kenneth J. Mukamal, MD *
Acknowledgment: The authors thank the patient for sharing his story.
Grant Support: Beyond the Guidelines receives no external support.
Disclosures: Dr. Schermerhorn reports personal fees from Abbott, personal fees from Cook, and personal fees from Philips, outside the submitted work. Authors not named here have disclosed no conflicts of interest. Disclosures can also be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=M17-1345.
Editors' Disclosures: Christine Laine, MD, MPH, Editor in Chief, reports that she has no financial relationships or interests to disclose. Darren B. Taichman, MD, PhD, Executive Deputy Editor, reports that he has no financial relationships or interests to disclose. Cynthia D. Mulrow, MD, MSc, Senior Deputy Editor, reports that she has no relationships or interests to disclose. Deborah Cotton, MD, MPH, Deputy Editor, reports that she has no financial relationships or interest to disclose. Jaya K. Rao, MD, MHS, Deputy Editor, reports that she has stock holdings/options in Eli Lilly and Pfizer. Sankey V. Williams, MD, Deputy Editor, reports that he has no financial relationships or interests to disclose. Catharine B. Stack, PhD, MS, Deputy Editor for Statistics, reports that she has stock holdings in Pfizer and Johnson & Johnson.
Requests for Single Reprints: Gerald W. Smetana, MD, Division of General Medicine and Primary Care, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215; e-mail, email@example.com.
Current Author Addresses: Drs. Smetana, Schermerhorn, and Mukamal: Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215.
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.
Smetana GW, Schermerhorn M, Mukamal KJ. Should We Screen This Patient for Carotid Artery Stenosis?: Grand Rounds Discussion From Beth Israel Deaconess Medical Center. Ann Intern Med. 2017;167:484–492. doi: https://doi.org/10.7326/M17-1345
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Published: Ann Intern Med. 2017;167(7):484-492.
High Value Care, Neurology, Stroke.
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