TY - JOUR
T1 - Endolymphatic hydrops revealed by magnetic resonance imaging in patients with acute low-tone sensorineural hearing loss
AU - Shimono, Mariko
AU - Teranishi, Masaaki
AU - Yoshida, Tadao
AU - Kato, Masahiro
AU - Sano, Rui
AU - Otake, Hironao
AU - Kato, Ken
AU - Sone, Michihiko
AU - Ohmiya, Naoki
AU - Naganawa, Shinji
AU - Nakashima, Tsutomu
PY - 2013/9
Y1 - 2013/9
N2 - Objective: Acute low-tone sensorineural hearing loss (ALHL) has been reported to be associated with endolymphatic hydrops (EHs). However, evaluation of the size of the endolymphatic space has not been reported. We attempted to visualize EH in ALHL using magnetic resonance imaging (MRI). Study Design: Prospective diagnostic study. Setting: University hospital. Methods: We evaluated 25 ears of 25 unilateral ALHL patients. Three-tesla MRI was obtained 24 hours after intratympanic injection of gadolinium (Gd) (n = 5) or 4 hours after intravenous injection of Gd (n = 20). A radiologist blinded to the patients' clinical data classified the degree of EH in the vestibule and cochlea into 3 groups: none, mild, and significant. Results: On the affected sides, cochlear EH was recognized in 23 ears (92%) and was classified as significant EH (n = 15) or mild EH (n = 8); vestibular EH was detected in 22 ears (88%), classified as significant EH (n = 16) or mild EH (n = 6). Cochlear EH was more frequently observed in the affected ear than in the contralateral ear (90% versus 40%, p < 0.05). Conclusion: In ALHL, EH was observed not only in the cochlea but also in the vestibule as in Ménière's disease.
AB - Objective: Acute low-tone sensorineural hearing loss (ALHL) has been reported to be associated with endolymphatic hydrops (EHs). However, evaluation of the size of the endolymphatic space has not been reported. We attempted to visualize EH in ALHL using magnetic resonance imaging (MRI). Study Design: Prospective diagnostic study. Setting: University hospital. Methods: We evaluated 25 ears of 25 unilateral ALHL patients. Three-tesla MRI was obtained 24 hours after intratympanic injection of gadolinium (Gd) (n = 5) or 4 hours after intravenous injection of Gd (n = 20). A radiologist blinded to the patients' clinical data classified the degree of EH in the vestibule and cochlea into 3 groups: none, mild, and significant. Results: On the affected sides, cochlear EH was recognized in 23 ears (92%) and was classified as significant EH (n = 15) or mild EH (n = 8); vestibular EH was detected in 22 ears (88%), classified as significant EH (n = 16) or mild EH (n = 6). Cochlear EH was more frequently observed in the affected ear than in the contralateral ear (90% versus 40%, p < 0.05). Conclusion: In ALHL, EH was observed not only in the cochlea but also in the vestibule as in Ménière's disease.
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U2 - 10.1097/MAO.0b013e3182990e81
DO - 10.1097/MAO.0b013e3182990e81
M3 - Article
C2 - 23921924
AN - SCOPUS:84883462950
SN - 1531-7129
VL - 34
SP - 1241
EP - 1246
JO - Otology and Neurotology
JF - Otology and Neurotology
IS - 7
ER -