Ramos Bernardo Faria, Cal Renato, Brock Camila Martins, Mangabeira Albernaz Pedro Luiz, Zuma e Maia Francisco
Department of Otorhinolaryngology, Espirito Santo Federal University, Vitória.
Department of Otorhinolaryngology, Parà Federal University, Belém.
Audiol Res. 2019 Aug 29;9(2):228. doi: 10.4081/audiores.2019.228. eCollection 2019 Sep 2.
The apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo (HC-BPPV) is attributed to free floating particles in the anterior arm of the lateral semicircular canal - particles attached to the cupula facing the canal or particles attached to the cupula facing the utricle. Zuma e Maia described a new treatment for both canalithiasis of the anterior arm of the horizontal semicircular canal (HC) and cupulolithiasis of the HC. Seventeen patients with apogeotropic HC-BPPV were enrolled and treated with Zuma's Maneuver. During the repositioning of the particles to the utricule, we observed the direction of the nystagmus evoked in each step of this maneuver in order to know where the otoliths were probably located. Eight patients were diagnosed with canalithiasis of the anterior arm, six patients with cupulolithiasis with the particles facing the canal and three patients with cupulolithiasis with the particles facing the utricle. Our data suggest that we can assume where the otoliths are probably located by observing the pattern of the nystagmus evoked in each step of the Zuma's Maneuver in patients with apogeotropic HC-BPPV.
水平半规管良性阵发性位置性眩晕（HC - BPPV）的背地性变体归因于外侧半规管前臂中的自由漂浮颗粒——附着在朝向半规管的壶腹上的颗粒或附着在朝向椭圆囊的壶腹上的颗粒。祖马和马亚描述了一种针对水平半规管前臂管结石症和水平半规管壶腹结石症的新治疗方法。纳入了17例背地性HC - BPPV患者并采用祖马手法进行治疗。在将颗粒重新定位到椭圆囊的过程中，我们观察了该手法每个步骤诱发的眼震方向，以便了解耳石可能位于何处。8例患者被诊断为前臂管结石症，6例患者为颗粒朝向半规管的壶腹结石症，3例患者为颗粒朝向椭圆囊的壶腹结石症。我们的数据表明，在背地性HC - BPPV患者中，通过观察祖马手法每个步骤诱发的眼震模式，我们可以推测耳石可能的位置。
