JOURNAL ARTICLE

Lateralization of horizontal semicircular canal benign paroxysmal positional vertigo (HSC-BPPV) with the latency test: a pilot study

Alfonso Scarpa, Claudia Cassandro, Federico Maria Gioacchini, Pasquale Viola, Rossella Cuofano, Shaniko Kaleci, Massimo Ralli, Giuseppe Chiarella, Ettore Cassandro
Acta Oto-laryngologica 2019, 139 (10): 854-859
31282790
Background: The treatments of horizontal semicircular canal benign paroxysmal positional vertigo (HSC-BPPV) have low remission rates ranging between 60% and 90%, connected to the difficulty in correctly identifying the affected side of HSC-BPPV. Objective: To propose and compare the efficacy of the latency test (LT) in identifying the affected ear in patients with HSC-BPPV. Materials and methods: Twenty-one subjects diagnosed with HSC-BPPV, as ascertained by head rolling test (HRT), were prospectively identified. Lateralization was assessed with pseudo-spontaneous nystagmus, lying-down nystagmus, bow and lean (BLT), HRT and LT tests. LT is a novel technique involving a 180° movement of the head and the analysis of the time required to reverse the nystagmus. Results: About 57% of patients were diagnosed with geotropic, and 43% with apogeotropic type HSC-BPPV. LT achieved a correct side diagnosis in 86%. Efficacy analysis of the tests compared to HRT revealed a substantial fair level of agreement for lying-down test ( κ  = 0.32, p  < .05), a slight level of agreement for BLT ( κ  = 0.19, p  < .05) and a substantial level of agreement for LT ( κ  = 0.071, p  < .001). Conclusions and significance: LT was proven to show a substantial level of agreement compared to HRT in identifying the affected ear in patients with HSC-BPPV in this pilot study.

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read
31282790
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"