The Effect of Upper Airway Surgery on Loop Gain in Obstructive Sleep Apnea.
hypoxemia
loop gain
lung
obstructive sleep apnea
upper airway surgery
ventilatory control
Journal
Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine
ISSN: 1550-9397
Titre abrégé: J Clin Sleep Med
Pays: United States
ID NLM: 101231977
Informations de publication
Date de publication:
15 06 2019
15 06 2019
Historique:
received:
17
07
2018
accepted:
18
02
2019
pubmed:
30
5
2019
medline:
21
10
2020
entrez:
30
5
2019
Statut:
epublish
Résumé
Controversy exists as to whether elevated loop gain is a cause or consequence of obstructive sleep apnea (OSA). Upper airway surgery is commonly performed in Asian patients with OSA who have failed positive airway pressure therapy and who are thought to have anatomical predisposition to OSA. We hypothesized that high loop gain would decrease following surgical treatment of OSA due to reduced sleep apnea severity. Polysomnography was performed preoperatively and postoperatively to assess OSA severity in 30 Chinese participants who underwent upper airway surgery. Loop gain was calculated using a validated clinically-applicable method by fitting a feedback control model to airflow. Patients were followed up for a median (interquartile range) of 130 (62, 224) days after surgery. Apnea-hypopnea index (AHI) changed from 60.8 (33.7, 71.7) to 18.4 (9.9, 42.5) events/h ( High loop gain was reduced by surgical treatment of OSA in our cohort. These data suggest that elevated loop gain may be acquired in OSA and may provide mechanistic insight into improvement in OSA with upper airway surgery. Registry: ClinicalTrials.gov, Title: The Impact of Sleep Apnea Treatment on Physiology Traits in Chinese Patients With Obstructive Sleep Apnea, Identifier: NCT02696629, URL: https://clinicaltrials.gov/show/NCT02696629.
Identifiants
pubmed: 31138381
doi: 10.5664/jcsm.7848
pii: jc-18-00429
pmc: PMC6557647
doi:
Banques de données
ClinicalTrials.gov
['NCT02696629']
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
907-913Subventions
Organisme : NHLBI NIH HHS
ID : T32 HL134632
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL085188
Pays : United States
Organisme : NHLBI NIH HHS
ID : K24 HL132105
Pays : United States
Organisme : NHLBI NIH HHS
ID : R21 HL121794
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL119201
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL081823
Pays : United States
Informations de copyright
© 2019 American Academy of Sleep Medicine.
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