%0 Case Reports
%T A Successfully Treated Case of Posterior Ischemic Optic Neuropathy That Developed during Antihypertensive Therapy for Hypertensive Emergency.
%A Yonezawa Y
%A Koga K
%A Higashi Y
%A Hasebe M
%A Fukushima C
%A Omiya C
%A Nishioka K
%A Yahata K
%J Intern Med
%V 63
%N 4
%D 2024 Feb 15
%M 37344439
%F 1.282
%R 10.2169/internalmedicine.1550-23
%X A 33-year-old woman developed hypertensive emergency (268/168 mmHg) with renal failure and hypertensive retinopathy. Four hours after the initiation of antihypertensive therapy with the continuous infusion of nicardipine, her blood pressure (BP) decreased to 168/84 mmHg; however, the patient developed blindness. She was diagnosed with posterior ischemic optic neuropathy (PION). Her BP was maintained at approximately 175/90 mmHg until her vision improved. Olmesartan was initiated on day 13, and her BP decreased to approximately 135/95 mmHg without the re-exacerbation of vision loss. Although the prognosis of PION is poor, its early diagnosis and gradual antihypertensive therapy may help preserve the patient's vision.