PMC5339919_01
Computed tomography (CT) post STN-DBS electrode placement. (a) Axial view at the level of the most proximal (top) electrode contacts. (b) Axial view at level of most distal (bottom) electrode contacts. (c) Coronal view at level of most proximal electrode contact. (d) Coronal view at level of most distal contact. (e) Sagittal view showing right STN electrode. (f) Sagittal view showing left STN electrode contacts
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F1
The first electrode was placed in the right-STN, and the second in the left-STN 1 month later [Figure 1].
(A) Laryngoscopic images of laryngeal airway opening. T = True vocal folds; F = False vocal folds; Ep = Epiglottis; Ar = Arytenoids; * = Airway (space between vocal folds). (B) Schematic representation of vocal fold mobility. (a) True vocal fold adduction during phonation. (b) Vocal fold abduction during normal inspiration. (c) Vocal folds immobile at the paramedian position. (d) The left vocal fold appears immobile at the paramedian position while the right vocal fold is abducted during inspiration. TVC = True vocal cords/folds; FVC = False vocal cords/folds
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F2
Upper airway evaluation via transnasal laryngoscopy revealed bilateral VF immobility with VFs at the paramedian position [Figure 2]. Following initiation of bilateral STN-DBS, the patient was evaluated at several intervals during a period of 11 months [Table 1; Figure 2].