The ABR was recorded from 70 dB nHL down to threshold or 20 dB nHL minimum, and up to a maximum of 80 dB nHL for the NE, and 90 dB nHL for the IE (100 µs rarefaction clicks, repetition rate 39 Hz, insert earphones, Eclipse EP25 (program version 4.3.0.17, Interacoustics, Middelfart, Denmark)) [20 (link),25 (link)]. For a full description of measurements and results see [20 (link)].
Tests of the cCMV infection were based on Polymerase chain reaction (PCR) analysis on the dried blood spot (DBS) cards typically taken 48 h after birth (n = 16), plasma test on the same day as birth (n = 1), or the mother’s lgG and lgM negative CMV blood test 51–88 days after birth (n = 3). For a full description of measurements and results see [20 (link)].
Fourteen subjects underwent MRI (19 eligible, 5 out of 19 subjects declined [20 (link)]). Thirteen MRI scans were performed with 3T scanners (Siemens Skyra or Siemens Prisma, Erlangen, Germany), and one with a 1.5 T scanner due to a combined spine MRI scan (GE Optima, GE Healthcare, Fairfield, CT, USA). Standard clinical protocols were used (see details in [20 (link)].
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