A Novel Method to Classify the Responses of Genioglossus to Negative Pressure in OSA Patients

Author:

Zhou Yingqian1ORCID,Yin Guoping1,Xu Jinkun1,Cao Xin1,Ye Jingying1ORCID

Affiliation:

1. Department of Otolaryngology–Head Neck Surgery, Sleep Medicine Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine Tsinghua University Beijing Changping People's Republic of China

Abstract

AbstractObjectiveThis study aims to develop a novel method to classify different genioglossus (GG) responses to upper airway (UA) negative pressure in obstructive sleep apnea (OSA) patients.Study DesignA single‐center, prospective, cohort study.SettingSleep Medical Center.MethodsPatients with OSA underwent drug‐induced sleep endoscopy with synchronous genioglossus electromyography (ggEMG) and UA pressure monitoring. In spontaneous obstructive apnea events, the value of epiglottis negative pressure at the end of inspiration (Pepi) and corresponding peak phasic ggEMG were recorded as pairing data for linear regression analysis to classify GG response modes: peak phasic ggEMG‐Pepi linear mode (P < .05) were classified as group 1; others (P ≥ .05) were classified as group 2. Using nasopharyngeal tube (NPT) to reopen the palatopharyngeal cavity for comparing the improvement between the OSA patients with different GG response modes.ResultsSixty subjects were analyzed for GG response modes: 22 patients were in group 1 (r2 = 0.233‐0.867), and 38 patients were in group 2. The proportion of partial (63.16% vs 59.09%) or complete (36.84% vs 22.73%) collapse rate of the tongue base in group 2 was significantly higher (χ2 = 7.823, P = .020). The improvement of the apnea‐hypopnea index after NPT placement in group 2 was significantly lower than in group 1 (59.09% vs 31.58%, χ2 = 4.339, P = .037).ConclusionThis novel method is advantageous for distinguishing OSA patients with different GG response abilities to UA negative pressure, whose GG responses conforming to peak phasic ggEMG‐Pepi linear mode might be more suitable for palatopharyngeal surgery.

Publisher

Wiley

Subject

Otorhinolaryngology,Surgery

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