- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning 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.
Studieöversikt
Status
Betingelser
Detaljerad beskrivning
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
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.
Studieplan
Hur är studien utformad?
Designdetaljer
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
primary outcome of this study is postoperative vascular event within 30 days after surgery
Tidsram: 30 days
|
30 days
|
Samarbetspartners och utredare
Utredare
- Huvudutredare: Frances Chung, MBBS, FRCPC, University Health Network, Toronto
Publikationer och användbara länkar
Allmänna publikationer
- 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.
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- Version Nov 14, 2011
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