High Prevalence of Diabetes in Patients With Primary Aldosteronism (PA) Associated With Subclinical Hypercortisolism and Prediabetes More Prevalent in Bilateral Than Unilateral PA: A Large, Multicenter Cohort Study in Japan.
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Akehi Yuko, Yanase Toshihiko, Motonaga Ryoko, Umakoshi Hironobu, Tsuiki Mika, Takeda Yoshiyu, Yoneda Takashi, Kurihara Isao, Itoh Hiroshi, Katabami Takuyuki, Ichijo Takamasa, Wada Norio, Shibayama Yui, Yoshimoto Takanobu, Ashida Kenji, Ogawa Yoshihiro, Kawashima Junji, Sone Masakatsu, Inagaki Nobuya, Takahashi Katsutoshi, Fujita Megumi, Watanabe Minemori, Matsuda Yuichi, Kobayashi Hiroki, Shibata Hirotaka, Kamemura Kohei, Otsuki Michio, Fujii Yuichi, Yamamoto Koichi, Ogo Atsushi, Okamura Shintaro, Miyauchi Shozo, Fukuoka Tomikazu, Izawa Shoichiro, Hashimoto Shigeatsu, Yamada Masanobu, Yoshikawa Yuichiro, Kai Tatsuya, Suzuki Tomoko, Kawamura Takashi, Naruse Mitsuhide, Japan Primary Aldosteronism Study Group
Аннотация
RESEARCH DESIGN AND METHODS: The prevalence of diabetes was determined in 2,210 patients with PA (diagnosed or glycated hemoglobin [HbA1c] ≥6.5% [≥48 mmol/mol]; NGSP) and compared with that of the Japanese general population according to age and sex. In 1,386 patients with PA and clear laterality (unilateral or bilateral), the effects of plasma aldosterone concentration (PAC), hypokalemia (<3.5 mEq/L), suspected subclinical hypercortisolism (SH; serum cortisol ≥1.8 µg/dL after 1-mg dexamethasone suppression test), and PA laterality on the prevalence of diabetes or prediabetes (5.7% ≤ HbA1c <6.5% [39 mmol/mol ≤ HbA1c <48 mmol/mol]) were examined.
RESULTS: Of the 2,210 patients with PA, 477 (21.6%) had diabetes. This prevalence is higher than that in the general population (12.1%) or in 10-year cohorts aged 30-69 years. Logistic regression or χ2 test revealed a significant contribution of suspected SH to diabetes. Despite more active PA profiles (e.g., higher PAC and lower potassium concentrations) in unilateral than bilateral PA, BMI and HbA1c values were significantly higher in bilateral PA. PA laterality had no effect on the prevalence of diabetes; however, the prevalence of prediabetes was significantly higher in bilateral than unilateral PA.
CONCLUSIONS: Individuals with PA have a high prevalence of diabetes, which is associated mainly with SH. The prevalence of prediabetes is greater for bilateral than unilateral PA, suggesting a unique metabolic cause of bilateral PA.