Coprevalence of tremor with spasmodic dysphonia: a case-control study.
نویسندگان
چکیده
OBJECTIVES/HYPOTHESIS The aim of this study was to define the coprevalence of tremor with spasmodic dysphonia (SD). STUDY DESIGN A single-institution, prospective, case-control study was performed from May 2010 to July 2010. METHODS Consecutive patients with SD (cases) and other voice disorders (controls) were enrolled prospectively. Each participant underwent a voice evaluation and an evaluation for tremor. RESULTS There were 146 voice disorder controls and 128 patients with SD enrolled. Of patients with SD 26% had vocal tremor, 21% had nonvocal tremor. Patients with SD were 2.8 times more likely to have coprevalent tremor than the control group (odds ratio = 2.81; 95% confidence interval, 1.55-5.08), and only 35% of patients with SD had been seen by a neurologist for the evaluation of dystonia and tremor. CONCLUSIONS Tremor is highly prevalent in patients with SD. It is important for each patient diagnosed with SD to undergo an evaluation for tremor, and this is especially important in patients diagnosed with vocal tremor.
منابع مشابه
Spasmodic Dysphonia and Thalamic Deep Brain Stimulation: Long-term Observations, Possible Neurophysiologic Mechanism and Comparison of Unilateral Versus Bilateral Stimulation
The association of upper extremity essential tremor and several types of other dystonias, including spasmodic dysphonia, have been reported in the past [1,2]. We previously reported a brief case description of a patient with essential tremor (ET) of the hands and adductor spasmodic dysphonia (SD) with vocal tremor who responded to bilateral thalamic DBS with six month follow up [3]. Our patient...
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عنوان ژورنال:
- The Laryngoscope
دوره 121 8 شماره
صفحات -
تاریخ انتشار 2011