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Head and neck
Published in Tor Wo Chiu, Stone’s Plastic Surgery Facts, 2018
Sensation – the auriculotemporal nerve, which is a branch of the mandibular nerve (V3), emerges anterior to the tragus. It also supplies the upper part of the pinna (lower half is supplied by the great auricular nerve; the posterior auricular nerve is a preparotid branch of the VIIth nerve and is motor to occipitalis).
ENT trauma in children
Published in S. Musheer Hussain, Paul White, Kim W Ah-See, Patrick Spielmann, Mary-Louise Montague, ENT Head & Neck Emergencies, 2018
Injuries of the outer, middle and inner ear may occur in isolation or in combination. The pinna is particularly vulnerable to isolated injury, given its exposed position. Middle and inner ear injuries are associated with high-energy injuries and may occur in the context of polytrauma. Bilateral and accidental ear injuries in the infant are very rare and should raise concern regarding non-accidental injury 4 (Figure 28.2).
Pinnaplasty
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
The aesthetically normal auricle lies with its long axis tilted posteriorly by 15–20 degrees. The top of the auricle is level with the eyebrow, and its width is approximately 60% of its height (range = 5.5–6.5 cm). A normal pinna has an auriculocephalic angle of 25 degrees while protruding ears have an auriculocephalic angle greater than 40 degrees (Figure 86.2).
Disseminated herpes zoster in an immunocompetent young adult: A rare complication of Ramsay Hunt syndrome
Published in Acta Oto-Laryngologica Case Reports, 2023
Naoyuki Matsumoto, Makiko Toma-Hirano, Takuya Yasui, Ken Ito
A 16-year-old male, without remarkable medical history, visited our hospital complaining of left-sided facial weakness and hearing loss for 1 day. Three days before, the patient experienced left otalgia and spinning vertigo. Tinnitus and headache were absent. There was no remarkable sick contact. It was one year before the onset of COVID-19 pandemic. He had suffered chickenpox during childhood. Physical examination revealed multiple vesicles on the left pinna. Facial palsy with House-Brackmann Grade III [3] was noted on the left side. Spontaneous nystagmus was not noted. Audiometry showed slight high-tone hearing loss in the left ear (Figure 1). The routine blood test was normal including inflammatory markers (WBC 7,900/microL and CRP 0.02 mg/dL). With the diagnosis of Ramsay Hunt syndrome, famciclovir (1500 mg/day) and prednisolone (50 mg/day) was prescribed.
Chronic exposure to dim light at night disrupts cell-mediated immune response and decreases longevity in aged female mice
Published in Chronobiology International, 2022
Jennifer A. Liu, James C. Walton, Jacob R. Bumgarner, William H. Walker, O. Hecmarie Meléndez-Fernández, A. Courtney DeVries, Randy J. Nelson
Re-exposure to DNFB induced swelling in the challenged pinna compared to baseline for both treatment groups (p < 0.05; data not shown). There was an interaction effect of lighting condition and time in females (Figure 2a; F5,65 = 2.39, p < 0.05); dLAN females initially had comparable swelling to LD female mice but displayed decreased right pinna swelling beginning after day 3 post sensitization; post-hoc comparisons were not statistically different when comparing lighting conditions across each day (p > 0.05). No significant difference between lighting conditions was observed among males (F1,24 = 1.16, p > 0.05).
Free-field correction values for RadioEar DD65v2 circumaural audiometric headphones
Published in International Journal of Audiology, 2022
The measurements were performed with 17 otologically normal test subjects aged 18 to 25 years (mean: 22 years; standard deviation: 2 years; 8 male, 9 female). Table 1 shows the distribution per age and gender. The number of subjects employed was higher than the minimum requirement of eight (IEC 60268-7 (2010)) to strengthen the statistical value of the data. Variations are expected due to different pinna, head and torso shapes. The questionnaire from ISO 389-9 (2009) established that the test subjects neither had acute hearing disorders nor did they have a history thereof. Directly prior to the measurements, each test subject was screened by means of otoscopy, tympanometry and pure-tone audiometry using a RadioEar DD45 headphone (audiometer: RadioEar AA222). All test subjects had an otologically normal anatomy, an unobstructed ear canal, a tympanometric peak pressure within ±50 daPa and a maximum hearing threshold of 10 dB HL (hearing level) for all audiometric frequencies. Hence, the requirements given in ISO 389-9 (2009) and in IEC 60268-7 (2010) were met.