Modified genioglossus advancement with radiofrequency tongue base reduction for retroglossal collapse in Obstructive sleep apnea patients

Abstract

ObjectiveTo study the combined effect of modified genioglossus advancement (MGGA) and radiofrequency tongue base reduction (RFTBR) a long with anterolateral advancement (ALA) pharyngolplasty on OSA patients with retrolingual airway collapse. Study designProspective clinical study. SettingZagazig and Benha Universities Medical Hospitals. Patients and methodsTwenty-one patients (21)with multilevel OSA underwent modified genioglossus advancement with radiofrequency tongue base reduction and anterolateral advancement pharyngolplasty. All patients were assessed before and 6 months after surgery by history talking, clinical examination, Epworth Sleepiness Scale evaluation fiberoptic examination during muller's maneuver, drug induced sleep endoscopy (DISE), panoramic X-ray, Cephalometry and polysomnography. ResultsPostoperative mean ± SD Epworth Sleepiness Scale (ESS) significantly decreased from 18.86 ± 2.03to 8.19 ± 1.86 (P-value was <0.001 95% (CI) 9.80 to 11.53).postoperative mean ± SD AHI decreased from 53.39 ± 14.10 to 26.66 ± 5.44 (P-value was <0.001 95% CI 22.37 to 32.81), postoperative mean ± SD LOS increased from 68.33 ± 9.12 to 86.0 ± 4.96 (P-value was <0.001 95% (CI) 15.24 to21.33).Based on cephalometric analysis postoperative mean ± SD PAS at mid retrolingual point in mm increased from 6.43 ± 1.25 to 11.98 ± 1.69 (P-value was <0.001 95% (CI) 4.78 to 6.32), also postoperative mean ± SD Distance between H-MP in mm decreased from 23.38 ± 1.14 to 15.17 ± 0.97 (P-value was 0.001 95% (CI) 7.66 to 8.76).The postoperative mean ± SD distance from hyoid to menton (H-me) in mm decreased from 39.47 ± 2.37to24.83 ± 2.43(P-value was 0.001 95% (CI) 7.31 to 8.41), the mean ± SD distance of genioglossus muscle advancement in mm was 14.45 ± 1.12.With a success rate defined as AHI < 20 and/or 50% reduction in AHI of the pre- operative value, the surgical success was 81%. ConclusionMGGA with RFTBR along with anterolateral advancement pharyngoplasty in a single session is well tolerated and safe surgery in the treatment of multilevel OSA patients. It is effective in reducing respiratory parameters and subjective symptoms of OSA.