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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

INTRODUCTION: Emerging epidemiological data suggest that obstructive sleep apnoea (OSA) is common in the general surgical population. Unfortunately, the majority of these patients are unrecognised and untreated at the time of surgery. There is substantial biological rationale to indicate that patien...

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Autores principales: Chan, Matthew T V, Wang, Chew-Yin, Seet, Edwin, Tam, Stanley, Lai, Hou-Yee, Walker, Stuart, Short, Timothy G, Halliwell, Richard, Chung, Frances
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902377/
https://www.ncbi.nlm.nih.gov/pubmed/24413351
http://dx.doi.org/10.1136/bmjopen-2013-004097
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author Chan, Matthew T V
Wang, Chew-Yin
Seet, Edwin
Tam, Stanley
Lai, Hou-Yee
Walker, Stuart
Short, Timothy G
Halliwell, Richard
Chung, Frances
author_facet Chan, Matthew T V
Wang, Chew-Yin
Seet, Edwin
Tam, Stanley
Lai, Hou-Yee
Walker, Stuart
Short, Timothy G
Halliwell, Richard
Chung, Frances
author_sort Chan, Matthew T V
collection PubMed
description INTRODUCTION: Emerging epidemiological data suggest that obstructive sleep apnoea (OSA) is common in the general surgical population. Unfortunately, the majority of these patients are unrecognised and untreated at the time of surgery. There is substantial biological rationale to indicate that patients with unrecognised OSA are at a higher risk of postoperative vascular events. However, the extent of this morbidity is currently unknown. We have initated the postoperative vascular complications in the unrecognised obstructive sleep apnoea (POSA) study to determine the associations between OSA, nocturnal hypoxia and major postoperative vascular events in 1200 moderate-to-high risk patients undergoing major non-cardiac surgery. METHODS AND ANALYSIS: The POSA study is an international prospective observational cohort study. Using a type 3 portable sleep monitoring device and ambulatory oximetry, we will quantify the severity of OSA. The primary outcome is a composite of vascular death, myocardial infarction; non-fatal cardiac arrest; stroke; pulmonary embolism; congestive heart failure and new arrhythmia within 30 days of surgery. As of November 2013, we have recruited over 700 patients from nine centres in six countries. The mean age is 68 years, the mean body mass index is 27 kg/m(2) and 55% of patients are men. 27.9% of patients have known coronary artery disease, over 76% have diabetes. The majority of patients underwent orthopaedic surgery (28%) and colorectal resection (18.5%). ETHICS AND DISSEMINATION: The POSA study has received ethics approval from all study sites before patient recruitment. Informed consent will be obtained from all patients. The POSA study will determine the risk of unrecognised OSA in major non-cardiac surgery. We will publish these findings in peer-reviewed journals. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01494181
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spelling pubmed-39023772014-01-27 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 Chan, Matthew T V Wang, Chew-Yin Seet, Edwin Tam, Stanley Lai, Hou-Yee Walker, Stuart Short, Timothy G Halliwell, Richard Chung, Frances BMJ Open Anaesthesia INTRODUCTION: Emerging epidemiological data suggest that obstructive sleep apnoea (OSA) is common in the general surgical population. Unfortunately, the majority of these patients are unrecognised and untreated at the time of surgery. There is substantial biological rationale to indicate that patients with unrecognised OSA are at a higher risk of postoperative vascular events. However, the extent of this morbidity is currently unknown. We have initated the postoperative vascular complications in the unrecognised obstructive sleep apnoea (POSA) study to determine the associations between OSA, nocturnal hypoxia and major postoperative vascular events in 1200 moderate-to-high risk patients undergoing major non-cardiac surgery. METHODS AND ANALYSIS: The POSA study is an international prospective observational cohort study. Using a type 3 portable sleep monitoring device and ambulatory oximetry, we will quantify the severity of OSA. The primary outcome is a composite of vascular death, myocardial infarction; non-fatal cardiac arrest; stroke; pulmonary embolism; congestive heart failure and new arrhythmia within 30 days of surgery. As of November 2013, we have recruited over 700 patients from nine centres in six countries. The mean age is 68 years, the mean body mass index is 27 kg/m(2) and 55% of patients are men. 27.9% of patients have known coronary artery disease, over 76% have diabetes. The majority of patients underwent orthopaedic surgery (28%) and colorectal resection (18.5%). ETHICS AND DISSEMINATION: The POSA study has received ethics approval from all study sites before patient recruitment. Informed consent will be obtained from all patients. The POSA study will determine the risk of unrecognised OSA in major non-cardiac surgery. We will publish these findings in peer-reviewed journals. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01494181 BMJ Publishing Group 2014-01-09 /pmc/articles/PMC3902377/ /pubmed/24413351 http://dx.doi.org/10.1136/bmjopen-2013-004097 Text en Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Anaesthesia
Chan, Matthew T V
Wang, Chew-Yin
Seet, Edwin
Tam, Stanley
Lai, Hou-Yee
Walker, Stuart
Short, Timothy G
Halliwell, Richard
Chung, Frances
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
title 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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_short 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
title_sort 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
topic Anaesthesia
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902377/
https://www.ncbi.nlm.nih.gov/pubmed/24413351
http://dx.doi.org/10.1136/bmjopen-2013-004097
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