WCB-2026-0484 Claims Records Page 23 of 34 HOLAND 42647461 trauma - Relief control operator - DOlJan 12-23, 2026 - MOI Wis claiming for an acoustic injury due to exposure to a computer fan from January 12, 2026 to January 23, 2026 - Wis claiming for a bilateral ear issue he attributes to computer fans behind his workstation while completing training. W was exposed to the sound for 10 days at close range between January 12, 2026 and January 23, 2026 and at a further range from January 27, 2026 to January 29, 2026. W noted symptoms began on January 19, 2026 as a persistent headache and loss of sleep. Symptoms worsened and on January 23, 2026 W began experiencing ear pain which was worse in the left ear. W has a pre-existing recurrence of migraines which had been managed up to this point. On January 27, 2026, W was moved to the front of the classroom, away from the computer server fans but symptoms persisted and he began missing time fully in the afternoon of January 29, 2026. He has not returned to work as his symptoms continue. - Whas received no formal diagnosis beyond ear pain but is awaiting an ENT appointment. Medical records on file. - ByW’s account, the sound did not go beyond 85 dB to be considered damaging, though W noted he attributes the tonal quality of the sound to be causative of his injury. W completed his own sound analysis and included photos of the desk arrangement (See Correspondence date February 6, 2026). Royal Columbian Hospital Jan 30, 2026” Forty-seven year so male presents with bilateral ear pain. He was seen here on January 25. During the visit, there was no signs af any infection or tympanic membranes trauma identified. He complained of Intermittent tinnitus. He alleged that he has been working In a very nolsy environment ve were to emergency room today beacause his tinnitus is getting worse along with his migraine. He vas gone through the audiology test in Surrey. The audiology test was reported to be normal. I discussed the case briefly with Dr. Zahabl from ENT. Dr. Zahabl does not think this Is ENT of origin given the audiology tests and the year examination were completely normal. The ENT specialist suspect that the nolsy environment might have triggered hls migraine headache leading to the patient's symptoms. both ENT and Neurology does not think outpatient follow up is warranted at this paint. Qn reassessment at 2145 hours, the patierit's migraine headache improved. He is frustrated with the worsening symptoms and the persistent migraine. He asked for a prescription for sumatriptan, He agreed to a trial of prednisone 50 rg once dally for the next 5 days. I gave him a 2 weeks’ worth of Pantoloc 40 mg once daily to protect his stomach while he is taking the prednisone, I have suggested him to follow up with his family doctor after the completion of the prednisone.