Perez, N. (N.)
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- Vestibular impairment in hemifacial spasm syndrome: A case report(European Academy of Otology and Neurotology and the Politzer Society, 2020) Krstulovic, C. (Claudio); Barona, L. (Luz); Perez, N. (N.); Bejarano, B. (B.)A 52-year-old man presented with left hemifacial spasm (HFS). A magnetic resonance imaging scan showed compression of the left facial nerve at the cerebellopontine angle by a dolichoectatic basilar artery. The neurotological evaluation showed an otolithic deficit, with canalicular preservation and normal hearing. The deficit improved after surgical decompression. No previous report has described the impairment of vestibular function in patients presenting with HFS.
- Capsule endoscopy interpretation: the role of physician extenders(The Spanish Society of Digestive Pathology, 2008) Carretero, C. (Cristina); Espinet, E. (E.); Herraiz-Bayod, M.J. (Maite J.); Muñoz-Navas, M. (Miguel); Fernandez-Urien, I. (Ignacio); Perez, N. (N.); Betes, M.T. (María Teresa)Background and aims: capsule endoscopy (CE) allows for a new era in small-bowel examination. Nevertheless, physicians’ time for CE-interpretation remains longer than desirable. Alternative strategies to physicians have not been widely investigated. The aim of this study was to evaluate the accuracy of physician extenders in CE-interpretation. Material and methods: one CE-experienced gastroenterologist and two physician extenders reviewed independently 20 CEprocedures. Each reader was blinded to the findings of their colleagues. A consensus formed by the readers and a second CE-experienced gastroenterologist was used as gold standard. Number, type and location of images selected, character of CEexams and their relationship with indications were recorded. Gastric emptying time (GEt), small-bowel transit time (SBTt) and time spent by readers were also noted. Results: sensitivity and specificity for “overall” lesions was 79 and 99% for the gastroenterologist; 86 and 43% for the nurse; and 80 and 57% for the resident. All 34 “major” lesions considered by consensus were found by the readers. Agreement between consensus and readers for images classification and procedures interpretation was good to excellent (κ from 0.55 to 1). No significant differences were found in the GEt and SBTt obtained by consensus and readers. The gastroenterologist was faster than physician extenders (mean time spent was 51.9 ± 13.5 minutes versus 62.2 ± 19 and 60.9 ± 17.1 for nurse and resident, respectively; p < 0.05). Conclusions: physician extenders could be the perfect complement to gastroenterologists for CE-interpretation but gastroenterologists should supervise their findings. Future cost-efficacy analyses are required to assess the benefits of this alternative.
- Cálculo de los tiempos de circularvección en una población con patología vestibular. Influencia del estímulo visual(Elsevier, 2007) Guillen-Grima, F. (Francisco); Rama-Lopez, J. (Julio); Perez, N. (N.)[corrected] To describe the results obtained for circularvection times (tCV) in a study of the phenomenon of visual-vestibular interaction for a population with vestibular pathology and to analyze differences in its calculation among patients reporting a worsening of their symptoms with visual stimuli. MATERIAL AND METHODS: A detailed case history was taken for all patients, followed by a sensory organization test using computerized dynamic posturography and the calculation of their tCV. RESULTS: The mean tCV results were: tCV2= 6.32+/-3.17 s; tCV3=6.57+/-3.68 s; tCVr=6.27+/-6.02 s. Significant differences were obtained in tCV2 (P=.046) and tCVr (P=.023). CONCLUSIONS: tCV is a diagnostic test using simple tools that can help differentiate patients in whom the visual stimulus is influenced.