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Acute Stroke in Patients With Isolated Vertigo
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Jungmoo Nam, Curie Chung, Jung Ju Lee, Jong Moo Park, Ja Seong Koo, Ohyun Kwon, Byung Kun Kim
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Res Vestib Sci. 2010;9(1):12-15.
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 Abstract
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- Background and Objectives Patients with isolated vertigo could have central or peripheral vestibular disorders. Although some differential points exist between the two conditions, sometimes it is not easy to differentiate central vertigo from that of peripheral vestibular origin, especially in patients with isolated vertigo. We performed this study to determine the frequency of acute infarction and predictors of vertigo associated with stroke in isolated spontaneous vertigo.
Materials and Methods We prospectively evaluated 185 consecutive patients who were admitted to neurology department with acute isolated vertigo, after excluding the patients with benign paroxysmal positioning vertigo. Diffusion-weighted MRI (DWI) was obtained in 161 (87.0%) patients. Demographics, stroke risk factors, associated symptoms and signs were reviewed. Also, the locations and vascular territories of the lesions on DWI were investigated.
Results Twenty three (14.3%) patients had acute infarction on DWI. Old age and male sex were the predictors of stroke using multivariate analysis (p=0.03 and 0.02). The lesions were located in the cerebellum in 17 patients, medulla in four, and pons in another four. Cerebellar lesions were in the territory of the posterior inferior cerebellar artery in all patients.
ConclusionIsolated spontaneous vertigo may develop in posterior circulation stroke, especially in men of old age. The possibility of central origin should be considered in patients with isolated vertigo and DWI might be a good diagnostic tool.
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The Effectiveness of Physical Therapy for the Horizontal Canal Cupulolithiasis
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Byung Kun Kim, Hee Jun Bae, Ja Seong Koo, Oh Hyun Kwon, Jong Moo Park
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J Korean Bal Soc. 2005;4(2):219-224.
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Abstract
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and Objectives: Recently many reports suggest the horizontal canal benign paroxysmal positional vertigo (h-BPPV) is not rare. However there have been few reports on physical therapy for horizontal canal cupulolithiasis, while horizontal canal canalithiasis has a relatively well defined and effective therapy. To evaluate the efficacy of different methods of treating horizontal canal cupulolithiasis, we conducted prospective study.
Materials and Method: We enrolled 104 consecutive patients who were diagnosed with h-BPPV. During that period, patients with posterior canal BPPV numbered 112. Patients with h-BPPV were diagnosed when lateral head rotation in the supine position resulted in geotropic or apogeotropic bilateral horizontal nystagmus. In patients presenting with apogeotropic variant (n=40), following maneuvers was performed sequentially. First of all, we performed head shaking and applied vibrator to the mastoid bone to detach otolith from cupula. If they failed to detach otolith from cupula, we performed barbecue rotation and forced prolonged position (FPP). The treatment outcome was considered as responsive when, immediately after each physical therapy, nystagmus shifted from apogeotropic to geotropic or no nystagmus was elicited by provocation test and symptoms of positional vertigo abated.
Results
There were 27 women and 13 men from ages 30 to 80 (mean 55) years. The average duration of symptoms before intervention was 0 to 12 (mean 0.6) days. In 4 cases, symptoms resolved spontaneously after provocation test. Of the 36 patients treated with headshaking, 6 were responsive. Of the 30 patients treated with vibrator after failure of head shaking, only 1 were responsive. In the barbecue rotation, none obtained relief after barbecue rotation. Of the 9 patients treated with FPP after failure of the barbecue rotation, 4 were symptom free after FPP. Twenty five patients, including 5 non-responders with FPP, underwent no more rehabilitation maneuver. In most of cases (n=24), horizontal canal cupulolithiasis resolved spontaneously within a week.
Conclusion
The direct effectiveness of physical therapy for horizontal canal cupulolithiasis is largely unsatisfactory. However, in many cases, horizontal canal cupulolithiasis resolved spontaneously in a few days.
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