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- Essai clinique NCT01494181
Unrecognised Obstructive Sleep Apnea Study (OSA)
Postoperative Vascular Events in Unrecognised Obstructive Sleep Apnea
Plan of investigation:
This is an observational cohort study to determine the effect of OSA, independent of other risk factors, on postoperative vascular events. The study is conceived, designed and will be conducted, and analyzed independent to any company. There is no commercial sponsorship.
Aperçu de l'étude
Statut
Les conditions
Description détaillée
Type d'étude
Inscription (Réel)
Contacts et emplacements
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Patients Inclusion & Exclusion Criteria:
Inclusion criteria:
Ethics Committee approval and informed consent will be obtained. We plan to study patients at moderate-to-high risk for postoperative vascular complications because our data from other trials suggested that the incidence of OSA in these patients is higher than the general population. We will include patients who are:
- adult males and females, age ≥ 45 years, undergoing elective non-cardiac surgery that is expected to require a postoperative hospital stay of more than 3 nights, and
- at increased risk for postoperative vascular events, defined as having at least one of the following risk factors (a) high-risk surgery (intra-peritoneal, intra-thoracic or supra-inguinal vascular surgery); (b) history of ischemic heart disease; (c) history of congestive heart failure; (d) history of cerebrovascular disease (d) diabetes requiring insulin therapy (e) serum creatinine > 175 µmol/L.
Exclusion criteria:
Patients will be excluded if:
- they have a previous diagnosis of OSA or any sleep-related breathing disorder and on treatment
- they are unwilling or physically unavailable for PSG on any night before surgery;
- their surgery included tonsillectomy, septoplasty, uvuloplasty, pharyngoplasty, tracheostomy, or prolonged (> 48 hrs) postoperative mechanical ventilation of the lungs is anticipated. It is because these procedures/interventions are likely to cure or at least modify the severity of OSA.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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primary outcome of this study is postoperative vascular event within 30 days after surgery
Délai: 30 days
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30 days
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Frances Chung, MBBS, FRCPC, University Health Network, Toronto
Publications et liens utiles
Publications générales
- Chung F, Waseem R, Wang CY, Seet E, Suen C, Chan MTV; Postoperative Vascular Complications in Unrecognised Obstructive Sleep Apnea (POSA) Study Investigators. Preoperative oximetry-derived hypoxemia predicts postoperative cardiovascular events in surgical patients with unrecognized obstructive sleep apnea. J Clin Anesth. 2022 Jun;78:110653. doi: 10.1016/j.jclinane.2022.110653. Epub 2022 Feb 4.
- Seet E, Chung F, Wang CY, Tam S, Kumar CM, Ubeynarayana CU, Yim CC, Chew EFF, Lam CKM, Cheng BCP, Chan MTV. Association of Obstructive Sleep Apnea With Difficult Intubation: Prospective Multicenter Observational Cohort Study. Anesth Analg. 2021 Jul 1;133(1):196-204. doi: 10.1213/ANE.0000000000005479.
- Waseem R, Chan MTV, Wang CY, Seet E, Tam S, Loo SY, Lam CKM, Hui DS, Chung F. Diagnostic performance of the STOP-Bang questionnaire as a screening tool for obstructive sleep apnea in different ethnic groups. J Clin Sleep Med. 2021 Mar 1;17(3):521-532. doi: 10.5664/jcsm.8940.
- Chan MT, Wang CY, Seet E, Tam S, Lai HY, Walker S, Short TG, Halliwell R, Chung F; POSA Investigators. Postoperative vascular complications in unrecognised Obstructive Sleep apnoea (POSA) study protocol: an observational cohort study in moderate-to-high risk patients undergoing non-cardiac surgery. BMJ Open. 2014 Jan 9;4(1):e004097. doi: 10.1136/bmjopen-2013-004097.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- Version Nov 14, 2011
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