title: [Video head impulse test or caloric irrigation?. Contemporary diagnostic tests for vestibular schwannoma].
abstract: The video head impulse test (vHIT) is a new method for investigating vestibular function that is currently poorly studied in terms of its value for clinical diagnosis in otolaryngology. Both the caloric irrigation and vHIT serve to evaluate the horizontal vestibulo-ocular reflex. In the present study, caloric irrigation and vHIT were compared in 46 patients with vestibular schwannoma. Caloric irrigation exhibits a higher sensitivity than vHIT (72% versus 41%) and both tests show only a moderate correlation. Tumor size and hearing level was significantly correlated with caloric abnormalities but not with vHIT findings. Since caloric irrigation and vHIT measure the hVOR in low and high frequency ranges, respectively, these tests have to be considered complementary and are valuable in both diagnostics and therapeutic decisions.
authors: Klinik für Hals-, Nasen-, Ohrenheilkunde, Plastische Chirurgie und Kommunikationsstörungen, HELIOS-Klinikum Berlin-Buch Schwanebecker Chaussee 50, 13125 Berlin. alexander.bloedow@helios-kliniken.de
authors: A
authors: A
authors: Blödow
authors: R
authors: R
authors: Helbig
authors: N
authors: N
authors: Wichmann
authors: A
authors: A
authors: Wenzel
authors: L E
authors: LE
authors: Walther
authors: M B
authors: MB
authors: Bloching
mesh_terms: D002150:Caloric Tests / Q000379:methods*; D003937:Diagnosis, Differential; D019317:Evidence-Based Medicine; D064087:Head Impulse Test / Q000379:methods*; D006801:Humans; D009464:Neuroma, Acoustic / Q000150:complications* / Q000175:diagnosis*; D014717:Vertigo / Q000175:diagnosis* / Q000209:etiology*; D014741:Video Recording / Q000379:methods
references: Front Neurol. 2011 Aug 30;2:55
references: 21941519
references: Neurosurgery. 2012 May;70(5):1072-80; discussion 1080
references: 22067416
references: Neurosurgery. 2006 Jul;59(1):67-76; discussion 67-76
references: 16823302
references: Otolaryngol Head Neck Surg. 1995 Sep;113(3):179-80
references: 7675475
references: J Neurosurg. 2000 Jan;92(1):70-8
references: 10616085
references: HNO. 2013 Jan;61(1):46-51
references: 23223918
references: Acta Otolaryngol. 2008 Nov;128(11):1215-20
references: 18607973
references: Acta Otolaryngol. 2008 Jul;128(7):756-60
references: 18568517
references: J Neurol Neurosurg Psychiatry. 2009 Nov;80(11):1254-60
references: 19574236
references: Auris Nasus Larynx. 2013 Aug;40(4):348-51
references: 23245835
references: Case Rep Otolaryngol. 2013;2013:168391
references: 23533884
references: HNO. 2013 Apr;61(4):327-34
references: 23588677
references: Neurosurgery. 2010 Sep;67(3):601-9; discussion 609-10
references: 20647966