Different Characteristics of Anterior and Posterior Branch Atheromatous Diseases with or without Early Neurologic Deterioration

Yoshiaki Takahashi, Toru Yamashita, Ryuta Morihara, Yumiko Nakano, Kota Sato, Mami Takemoto, Nozomi Hishikawa, Yasuyuki Ohta, Yasuhiro Manabe, Koji Abe

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Background Among several types of ischemic stroke (IS), branch atheromatous disease (BAD) is known to be the leading cause of disability. Methods A total of 1919 patients with acute IS were retrospectively analyzed, and BAD patients were classified into anterior or posterior BAD, depending on the responsible vascular territories. These patients were further subcategorized with or without early neurologic deterioration (END or no-END). Results Of all IS patients, 14.3% had BAD, and 202 patients (73.7%) were further classified as anterior BAD and 72 patients (26.3%) as posterior BAD. The prevalence of diabetes mellitus and END was significantly higher in posterior than in anterior BAD (44.4% vs 26.4%, P < .01; 18.1% vs 5.4%, P < .01, respectively). Posterior BAD showed a higher proportion of female patients and an older age (69.2% vs 39.0%, P < .05; 79.1 ± 7.7 vs 70.5 ± 10.7, P < .01, respectively) in END than in no-END. The modified Rankin Scale was worse in posterior BAD at 90 days (2.5 ± 1.6, P < .01) than in anterior BAD (1.6 ± 1.4). Conclusions Our present study shows that posterior BAD is a worse clinical outcome than anterior BAD, with more vascular risk factors. Older female patients with posterior BAD showed a higher risk of END, leading to a worse clinical outcome.

Original languageEnglish
Pages (from-to)1314-1320
Number of pages7
JournalJournal of Stroke and Cerebrovascular Diseases
Issue number6
Publication statusPublished - Jun 2017


  • Branch atheromatous disease
  • acute ischemic stroke
  • anterior circulation
  • early neurologic deterioration
  • posterior circulation

ASJC Scopus subject areas

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


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