Ishino T, et al. - Experts examined if peripheral and cerebral circulation can be evaluated by noninvasive and globally available methods, yielding superior presurgical predictive factors of the performance of cochlear implantation (CI) in adult patients with postlingual hearing loss who are scheduled to undergo CI. Findings suggested that for predicting the efficacy of cochlear implants, flow-mediated dilation is a convenient, noninvasive, and widely available tool. For determining if patients will hear well with cochlear implants, an flow-mediated dilation (FMD) cutoff score of 1.8 could be a good index. The prediction that whether cochlear implants will provide good speech recognition benefits to candidates, even if their speech discrimination is poor could be made by it. They noted that for candidates with poor speech discrimination, this FMD index could become a useful predictive tool to determine the efficacy of CI before surgery.