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Pilot study: asymptomatic hyperuricemia patients with obesity and nonalcoholic fatty liver disease have increased risk of double contour sign

Korean Journal of Internal Medicine 2020년 35권 6호 p.1517 ~ 1523
민홍기, 조현정, 박성환,
소속 상세정보
민홍기 ( Min Hong-Ki ) - Catholic University College of Medicine Seoul St. Mary’s Hospital Department of Internal Medicine
조현정 ( Cho Hyon-Joung ) - Armed Forces Medical Command Armed Forces Capital Hospital Department of Internal Medicine
박성환 ( Park Sung-Hwan ) - Catholic University College of Medicine Seoul St. Mary’s Hospital Department of Internal Medicine

Abstract


Background/Aims: Double contour sign (DCS) is a representative ultrasonographic finding in gout. DCS is evidence of monosodium urate deposit in gouty arthritis and has been identified in some patients with asymptomatic hyperuricemia. However, the specific characteristics of asymptomatic hyperuricemia in patients with DCS have not yet been revealed.

Methods: We enrolled patients with incidentally found hyperuricemia. Baseline characteristics were compared between asymptomatic hyperuricemia patients with and without DCS. Logistic regression analysis was performed to determine associated factors for DCS in patients with asymptomatic hyperuricemia.

Results: A total of 62 patients with asymptomatic hyperuricemia were enrolled, and 22 of the patients showed DCS. The metatarsophalangeal were the most commonly affected joints, and differences between asymptomatic hyperuricemia patients with and without DCS were seen in aspects of class II obesity and nonalcoholic fatty liver disease (NAFLD). Multivariate logistic regression analysis demonstrated that class II obesity and NAFLD significantly increased the risk of DCS in asymptomatic hyperuricemia patients (odds ratio [OR], 6.58, p = 0.022; OR, 5.21, p = 0.020, respectively).

Conclusions: Asymptomatic hyperuricemia patients with class II obesity and NAFLD had increased risk of DCS. Determining the presence of crystal deposition, such as DCS, among patients with asymptomatic hyperuricemia might help determine whether early pharmacologic intervention is needed, especially with severe obesity or NAFLD.

키워드

Asymptomatic hyperuricemia; Double contour sign; Ultrasonography; Obesity; Non-alcoholic fatty liver disease

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