IMPORTANCEThe Choosing Wisely campaign consists of more than 70 lists produced by specialty societies of medical practices or procedures of minimal clinical benefit to patients in most situations, with recommendations regarding judicious use.OBJECTIVE To quantify the frequency and trends of some of the earliest Choosing Wisely recommendations using nationwide commercial health plan population-level data.DESIGN, SETTING, AND PARTICIPANTS Retrospective analysis of claims data for members of Anthem-affiliated commercial health plans. The low-value services selected were (1) imaging tests for uncomplicated headache; (2) cardiac imaging without history of cardiac conditions;(3) low back pain imaging without red-flag conditions; (4) preoperative chest x-rays with unremarkable history and physical examination results; (5) human papillomavirus testing for women younger than 30 years; (6) use of antibiotics for acute sinusitis; and (7) use of prescription nonsteroidal anti-inflammatory drugs (NSAIDs) for members with hypertension, heart failure, or chronic kidney disease. MAIN OUTCOMES AND MEASURESThe number of members with medical and/or pharmacy claims for the included low-value services was assessed quarterly over a 2-to 3-year span through 2013. Trend changes in recommendations were evaluated across all quarters using Poisson regression with denominators as offsets.RESULTS Two services had declines: Use of imaging for headache decreased from 14.9% to 13.4% (trend estimate, 0.99 [95% CI, 0.98-0.99]; P < .001), and cardiac imaging decreased from 10.8% to 9.7% (trend estimate, 0.99 [95% CI, 0.99-0.99]; P < .001). Two services had increases: Use of NSAIDs in select conditions increased from 14.4% to 16.2% (trend estimate, 1.02 [95% CI, 1.01-1.02]; P < .001), and human papillomavirus testing in younger women increased from 4.8% to 6.0% (trend estimate, 1.01 [95% CI, 1.00-1.01]; P < .001). Use of antibiotics for sinusitis remained stable (0.8% decrease from 84.5% to 83.7%; trend estimate, 1.00 [95% CI, 1.00-1.00]; P = .16). Use of preoperative chest x-rays (0.2% decrease, ending utilization 91.5%; trend estimate, 1.00 [95% CI, 1.00-1.00]; P = .70) and imaging for low back pain (53.7% utilization throughout study; P = .71) remained high with no statistically significant changes. CONCLUSIONS AND RELEVANCEFor this population-level analysis of 7 low-value services analyzed, changes were modest but showed a desirable decrease for 2 recommendations (imaging for headache, cardiac imaging for low-risk patients). The effect sizes were marginal, however, and although 4 of the 7 lists had statistically significant changes-unsurprising given the large sample size-the clinical significance is uncertain. These results suggest that additional interventions are necessary for wider implementation of Choosing Wisely recommendations.

Secondary thyroidectomy is an operation generally considered to be associated with a significantly increased risk of damage to the recurrent laryngeal nerves and parathyroid glands. During a 20‐year period, to December, 1986, a total of 408 secondary thyroidectomies were performed. The majority (n=227) were for recurrent nodular goiter, followed by reoperations for thyroid cancer (n=151), and operations for secondary thyrotoxicosis (n=30). The incidence of operative recurrent laryngeal palsy was 1.5% over the 20‐year period, while the incidence of permanent hypoparathyroidism fell from 3.5% during the first 15 years to 1.6% over the last 5 years, with a similar fall in the incidence of transient hypocalcemia (8.4% down to 4.8%). The risk of complications can be minimized by careful attention to operative detail, employing the technique of capsular dissection with preservation of the vascular supply to the parathyroid glands while protecting the recurrent laryngeal nerve.

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