Anne M B Corradi1, Liciane P Valarelli1, Thaís H Grechi1, Alan L Eckeli2, Davi C Aragon3, Daniel S Küpper1, Leila A Almeida2, Heidi H Sander2, Luciana V V Trawitzki1, Fabiana C P Valera4. 1. Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Medical School of Ribeirão Preto, University of São Paulo, Av. Bandeirantes, 3900 12o andar, Ribeirão Preto, SP, 14049-900, Brazil. 2. Division of Neurology, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil. 3. Department of Pediatrics, Medical School of Ribeirão Preto, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil. 4. Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Medical School of Ribeirão Preto, University of São Paulo, Av. Bandeirantes, 3900 12o andar, Ribeirão Preto, SP, 14049-900, Brazil. facpvalera@fmrp.usp.br.
Abstract
PURPOSE: To evaluate the effect of pharyngeal surgery on swallowing pattern in patients with obstructive sleep apnea syndrome (OSAS), and to compare two surgical techniques: uvulopalatopharyngoplasty (UPPP) and expansion pharyngoplasty (EP), through videofluoroscopy. METHODS: Longitudinal prospective cohort, in a tertiary referral center. 17 adult patients were enrolled this study, divided into two groups: patients who underwent UPPP (n = 10) or EP (n = 7). Swallowing videofluoroscopy (for both liquid and pasty consistences) was assessed at three different periods: before surgery, and at 14 and 28 days following surgery. Comparisons were performed between pre- and post-operative (PO) swallowing conditions in the same patient, and between surgical techniques. RESULTS: Asymptomatic OSAS patients already presented altered swallowing pattern before surgery. Both surgical procedures led to an increased hyoid movement time and an increased frequency of laryngeal penetration in early PO during liquid ingestion. For pasty consistency, both techniques reduced velum movement time and increased pharyngeal transit time and the rate of stasis in hypopharynx. All these parameters reached or tended to reach the pre-operative indices at day PO 28. CONCLUSIONS: OSAS patients show sub-clinical changes in swallowing pattern before surgery. Both surgical techniques are related to transitory changes in swallowing biomechanics. Complete or partial reversal to pre-operative swallowing parameters occurs 1 month after both surgery techniques.
PURPOSE: To evaluate the effect of pharyngeal surgery on swallowing pattern in patients with obstructive sleep apnea syndrome (OSAS), and to compare two surgical techniques: uvulopalatopharyngoplasty (UPPP) and expansion pharyngoplasty (EP), through videofluoroscopy. METHODS: Longitudinal prospective cohort, in a tertiary referral center. 17 adult patients were enrolled this study, divided into two groups: patients who underwent UPPP (n = 10) or EP (n = 7). Swallowing videofluoroscopy (for both liquid and pasty consistences) was assessed at three different periods: before surgery, and at 14 and 28 days following surgery. Comparisons were performed between pre- and post-operative (PO) swallowing conditions in the same patient, and between surgical techniques. RESULTS: Asymptomatic OSAS patients already presented altered swallowing pattern before surgery. Both surgical procedures led to an increased hyoid movement time and an increased frequency of laryngeal penetration in early PO during liquid ingestion. For pasty consistency, both techniques reduced velum movement time and increased pharyngeal transit time and the rate of stasis in hypopharynx. All these parameters reached or tended to reach the pre-operative indices at day PO 28. CONCLUSIONS: OSAS patients show sub-clinical changes in swallowing pattern before surgery. Both surgical techniques are related to transitory changes in swallowing biomechanics. Complete or partial reversal to pre-operative swallowing parameters occurs 1 month after both surgery techniques.
Authors: Lawrence J Epstein; David Kristo; Patrick J Strollo; Norman Friedman; Atul Malhotra; Susheel P Patil; Kannan Ramar; Robert Rogers; Richard J Schwab; Edward M Weaver; Michael D Weinstein Journal: J Clin Sleep Med Date: 2009-06-15 Impact factor: 4.062
Authors: Adriano Braga; Luiz H Carboni; Tassiana do Lago; Daniel S Küpper; Alan Eckeli; Fabiana C P Valera Journal: Eur Arch Otorhinolaryngol Date: 2012-05-13 Impact factor: 2.503
Authors: Mistyka S Schar; Taher I Omari; Charmaine M Woods; Charles Cock; Sebastian H Doeltgen; Ching Li Chai-Coetzer; Danny J Eckert; Theodore Athanasiadis; Eng H Ooi Journal: J Clin Sleep Med Date: 2022-04-01 Impact factor: 4.062