Features of patients with transient monocular blindness: A multicenter retrospective study in Japan

Koji Tanaka, Toshiyuki Uehara, Kazumi Kimura, Yasushi Okada, Yasuhiro Hasegawa, Norio Tanahashi, Akifumi Suzuki, Shigeharu Takagi, Jyoji Nakagawara, Kazumasa Arii, Shinji Nagahiro, Kuniaki Ogasawara, Takehiko Nagao, Shinichiro Uchiyama, Masayasu Matsumoto, Koji Iihara, Kazunori Toyoda, Kazuo Minematsu

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Abstract

Background Transient monocular blindness (TMB) is associated with a transient ischemic attack (TIA). The purpose of this study was to investigate the features of TMB in the Japanese population using data from a multicenter retrospective study of TIA. Methods The subjects were consecutive TIA patients admitted to 13 stroke centers within 7 days after symptom onset. We compared clinical characteristics of patients with TMB and those without TMB who had other symptoms of cerebral TIA. Results A total of 464 patients were registered between January 2008 and December 2009, and 444 patients (283 men, mean age: 68.5 years) were included in the analysis. Thirteen patients (2.9%) presented with TMB. Patients with TMB were less likely to arrive at the specialized stroke center quickly than those without TMB (P =.013). Stenotic lesions in the extracranial internal carotid artery were more common in patients with TMB (33.3% versus 9.1%, P =.022). Conclusions TMB was not common in our TIA inpatients. This study suggests that patients with TMB should immediately undergo a diagnostic workup, including brain and vessel imaging, and cardiac evaluation, as is performed in patients with other cerebral TIA symptoms. A larger, prospective cohort is needed to confirm the risks and outcomes of patients with TMB in the Japanese population.

Original languageEnglish
Pages (from-to)e151-e155
JournalJournal of Stroke and Cerebrovascular Diseases
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 2014

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All Science Journal Classification (ASJC) codes

  • Surgery
  • Rehabilitation
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

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