A Case of Exacerbation of Subclinical Hyperthyroidism after First Administration of BNT162b2 mRNA COVID-19 Vaccine
Kana Yamamoto,
Takahisa Mashiba,
Keisuke Takano,
Toshihiko Suzuki,
Masahiro Kami,
Morihito Takita,
Eiji Kusumi,
Yasuhiro Mizuno,
Tamae Hamaki
Affiliations
Kana Yamamoto
Department of Reproductive, Developmental and Aging Sciences, Graduate School of Medicine, University of Tokyo, 4-6-1 Shirokanedai, Minato, Tokyo 108-0071, Japan
Takahisa Mashiba
Department of General Internal Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, 3-4-32 Todaijima, Urayasu, Chiba 279-0001, Japan
Keisuke Takano
Department of Endocrinology, Tokyo Bay Urayasu Ichikawa Medical Center, 3-4-32 Todaijima, Urayasu, Chiba 279-0001, Japan
Toshihiko Suzuki
Department of Endocrinology, Tokyo Bay Urayasu Ichikawa Medical Center, 3-4-32 Todaijima, Urayasu, Chiba 279-0001, Japan
Masahiro Kami
Department of Internal Medicine, Navitas Clinic Shinjuku, 4-1-6 Shinjuku 7th Floor of Newoman Bldg, Shinjuku, Tokyo 160-0022, Japan
Morihito Takita
Department of Internal Medicine, Navitas Clinic Tachikawa, 3-1-1 Shibasakicho 4th Floor of Ecute Tachikawa, Tachikawa, Tokyo 190-0023, Japan
Eiji Kusumi
Department of Internal Medicine, Navitas Clinic Tachikawa, 3-1-1 Shibasakicho 4th Floor of Ecute Tachikawa, Tachikawa, Tokyo 190-0023, Japan
Yasuhiro Mizuno
Department of Gastroenterology, Marru-Clinic Yokosuka, 1-8-7 Yonegahamadori, Yokosuka 238-0011, Kanagawa, Japan
Tamae Hamaki
Department of Internal Medicine, Navitas Clinic Shinjuku, 4-1-6 Shinjuku 7th Floor of Newoman Bldg, Shinjuku, Tokyo 160-0022, Japan
COVID-19 vaccines are the most critical measure for controlling the COVID-19 pandemic; however, we have little information on their complications. We experienced a case of a patient who developed hyperthyroidism complicated with atrial fibrillation and heart failure on the sixth day after the first dose of COVID-19 vaccination. This case report shows the importance of considering hyperthyroidism as a possible complication after COVID-19 vaccination.
