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Lembacher, Sophie; Gantner, Sophia; Uhl, Bernd; Holzer, Martin; Patscheider, Martin und Hempel, John-Martin (2022): The RonchAP (R) palatinal device: A conservative approach in treating obstructive sleep apnea syndrome-a randomized, controlled study. In: European Archives of Oto-Rhino-Laryngology, Bd. 280, Nr. 5: S. 2373-2385 [PDF, 2MB]

Abstract

Purpose The aim of the present study was to assess the efficacy of the Ronch (R) AP palatal device in treating patients with moderate and severe forms of obstructive sleep apnea syndrome. Methods In a randomized controlled trial 22 patients were examined with the Ronch (R) AP palatal device after 4 weeks of usage. Their results were compared to a control group of 30 patients who did not receive any treatment during this time. All patients included did not tolerate CPAP therapy. Among other parameters the apnea-hypopnea index (AHI) was measured using nocturnal cardiorespiratory polysomnography. Daytime sleepiness was assessed using Epworth Sleepiness Scale. Pittsburgh Sleep Quality Index was used to analyze sleep quality. Results Using the Ronch (R) AP palatal device AHI was reduced from an average of 35.34 +/- 14.9/h to 19.18 +/- 14.93/h, whereas the control group only showed a minimal mean reduction from 31.32 +/- 12.76/h to 29.37 +/- 17.11/h. The difference in reduction between the two randomized groups was highly significant (d =- 14.2, 95% CI 5.9-22.6, t = 3.4, df = 49.9, p = 0.001). Epworth Sleepiness Scale score was lowered from 9.18 +/- 4.73 to 7.82 +/- 4.14 on average and sleep quality improved by - 1.91 +/- 2.31. Both changes were also statistically relevant (p < 0.005). Conclusions The Ronch (R) AP device is an effective alternative treatment option for patients suffering from moderate and severe forms of obstructive sleep apnea syndrome and not tolerating CPAP therapy.

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