caa a22 4500 606186670 CHVBK 20210128100837.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00405-014-3032-4 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3032-4 Correlations between the clinical, histological and neurophysiological examinations in patients before and after parotid gland tumor surgery: verification of facial nerve transmission [Elektronische Daten] [Agnieszka Wiertel-Krawczuk, Juliusz Huber, Magdalena Wojtysiak, Wojciech Golusiński, Piotr Pieńkowski, Paweł Golusiński] Parotid gland tumor surgery sometimes leads to facial nerve paralysis. Malignant more than benign tumors determine nerve function preoperatively, while postoperative observations based on clinical, histological and neurophysiological studies have not been reported in detail. The aims of this pilot study were evaluation and correlations of histological properties of tumor (its size and location) and clinical and neurophysiological assessment of facial nerve function pre- and post-operatively (1 and 6months). Comparative studies included 17 patients with benign (n=13) and malignant (n=4) tumors. Clinical assessment was based on House-Brackmann scale (H-B), neurophysiological diagnostics included facial electroneurography [ENG, compound muscle action potential (CMAP)], mimetic muscle electromyography (EMG) and blink-reflex examinations (BR). Mainly grade I of H-B was recorded both pre- (n=13) and post-operatively (n=12) in patients with small (1.5-2.4cm) benign tumors located in superficial lobes. Patients with medium size (2.5-3.4cm) malignant tumors in both lobes were scored at grade I (n=2) and III (n=2) pre- and mainly VI (n=4) post-operatively. CMAP amplitudes after stimulation of mandibular marginal branch were reduced at about 25% in patients with benign tumors after surgery. In the cases of malignant tumors CMAPs were not recorded following stimulation of any branch. A similar trend was found for BR results. H-B and ENG results revealed positive correlations between the type of tumor and surgery with facial nerve function. Neurophysiological studies detected clinically silent facial nerve neuropathy of mandibular marginal branch in postoperative period. Needle EMG, ENG and BR examinations allow for the evaluation of face muscles reinnervation and facial nerve regeneration. The Author(s), 2014 Parotid gland tumor surgery nationallicence Facial and trigeminal nerve transmission nationallicence House-Brackmann scale nationallicence Electroneurography and electromyography nationallicence Blink reflex nationallicence Wiertel-Krawczuk Agnieszka Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut Huber Juliusz Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut Wojtysiak Magdalena Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut Golusiński Wojciech Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut Pieńkowski Piotr Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut Golusiński Paweł Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/5(2015-05-01), 1219-1229 0937-4477 272:5<1219 2015 272 405 https://doi.org/10.1007/s00405-014-3032-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3032-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wiertel-Krawczuk Agnieszka Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut NATIONALLICENCE 700 1- Huber Juliusz Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut NATIONALLICENCE 700 1- Wojtysiak Magdalena Department of Pathophysiology of Locomotor Organs, Wiktor Dega Clinical Orthopaedic and Rehabilitation Hospital, University of Medical Sciences, 28 Czerwca 1956r. No 135/147, 61-545, Poznań, Poland aut NATIONALLICENCE 700 1- Golusiński Wojciech Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Pieńkowski Piotr Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut NATIONALLICENCE 700 1- Golusiński Paweł Department of Head and Neck Surgery, Greater Poland Cancer Center, University of Medical Sciences, Poznań, Poland aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/5(2015-05-01), 1219-1229 0937-4477 272:5<1219 2015 272 405