SpeedCAP: An Efficient Method for Estimating Neural Activation Patterns Using Electrically Evoked Compound Action-Potentials in Cochlear Implant Users.

The study used only Cochlear Ltd. devices, so it does not show that the method works with other cochlear implant systems. The postoperative sample was small, with 11 users, and C13 and C19L were excluded from the SpeedCAP repeatability analysis because they had only one SpeedCAP recording. The intraoperative sample was small, and only diagonal ECAPs were compared, so the study cannot confirm that full intraoperative PECAP estimates are equivalent to postoperative SlowCAP estimates. The statistics tested whether the methods differed, not whether they were equivalent; the authors state that lack of evidence of difference is not evidence of equivalence. The intraoperative comparison had low power, so it could only detect relatively large differences. One participant with superficial siderosis was an outlier, and the authors suggest conditions that lengthen neural recovery may affect SpeedCAP. The paper does not test whether SpeedCAP or PECAP improves speech perception, fitting decisions, or patient outcomes. The reported time savings depend on the authors' custom software and may not be reproducible without proprietary system details.

The authors declared no conflicts of interest.

Do not conclude that SpeedCAP is proven equivalent to SlowCAP or that it will improve cochlear implant fitting or speech outcomes. The study found no significant differences in ECAP error metrics and reported estimated error within 8.2%, but it says this is lack of evidence of difference, not evidence of equivalence, and it did not test speech perception or patient outcomes.