The Head Impulse Test as a Predictor of Videonystagmography Caloric Test Lateralization according to the Level of Examiner Experience: A Prospective Open-Label Study

Abstract

We conducted a study to compare how well the head impulse test (HIT), without and with eye-movement recordings, wouldpredictvideonystagmographic (VNG) caloric test lateralization when performed by a resident and an experiencedotoneurologist. This prospective, open-label, blindedstudy was conducted in an ambulatory tertiary care referral center. Our study population was made up of 60 patients-29 men and 31 women, aged 20 to 82 years (mean: 56.4 ± 11.4)-with peripheral vestibulopathy who underwent HIT and VNG caloric testing. The HIT was conducted in two protocols: HITO and HITl. The HITO wasperformed with passive brisk movements of the patient's head from the 0°null position to 20°sideways, and the HITI was performed towardthe center while the null position was a 20°head rotation to the right and to the left. Each protocol was carried out without video eye-movement recordings (HITO and HITl) and with such recordings (rHITO and rHITl). The primary outcome measures were (1) a comparison of the HIT's sensitivityand specificity when performed by the resident and by the experienced otoneurologist and (2) the ability of video-recorded HIT to predict VNG caloric test lateralization. The sensitivity

Abordagem terapêutica da síndrome obstrutiva braquicefálica: revisão de literatura

“…A turbinectomia por laser diodo, em comparação com a técnica convencional, em pacientes humanos, mostrou melhores resultados em termos de redução da obstrução nasal, menores níveis de dor nos cinco dias seguintes à cirurgia, redução significativa de sangramento intraoperatório e menor tempo de recuperação. A comparação entre as técnicas cirúrgicas de turbinectomia para redução de obstrução nasal em cães braquicefálicos, ainda necessita de estudos, porém as pesquisas realizadas com pacientes humanos têm favorecido a escolha da técnica que se utiliza do laser (Doreyawar, Gadag, Manjunath, Javali, Maradi & Shetty, 2018).…”