Clinical trial NCT01697878: Consequences of Obstructive Sleep Apnea on Respiratory Function Following Weight-loss Surgery
Official title: Consequences of Obstructive Sleep Apnea on Respiratory Function Following Weight-loss Surgery: A Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Obstructive Sleep Apnea
Obesity
Keywords: obstructive sleep apnea
obesity
respiratory function
weight loss surgery
Lead sponsor: Massachusetts General Hospital
Sponsor class: OTHER
Collaborators: name: ResMed
First posted: 2012-10-02
Enrollment: 45
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: SUPPORTIVE_CARE

Brief summary: The investigators propose to compare two different treatments, continuous positive airway pressure (CPAP) versus breathing of atmospheric pressure, in subjects with obstructive sleep apnea (OSA)recovering from weight loss surgery in the post anesthesia care unit (PACU). WE hypothesize that subjects with OSA will have a higher Apnea-Hypopnea Index (AHI) with desaturation and the investigators expect that post-operative CPAP treatment in the PACU will significantly improve the AHI and therefore improve patient safety in the PACU. The investigators also hypothesize that subjects with OSA have a greater decrease in oxygen saturation in response to opioid administration by patient-controlled opioid analgesia (PCA).

Detailed description: Patients with morbid obesity have an approximately 60-80 percent incidence of OSA depending on the criteria used for making diagnosis, and they are suggested to be at increased risk to develop serious perioperative complications, especially during the postoperative period. Weight loss might be considered as an appropriate treatment of OSA but in turn it has recently been reported that OSA is an independent risk factor for development of perioperative complications, importantly oxygen desaturation, in patients undergoing weight loss surgery. It seems logical to evaluate if these patients would benefit from post-operative CPAP treatment in the PACU. The results of this multidisciplinary study will have an impact on PACU treatment of patients with OSA and will further optimize patient care at MGH.

Eligibility criteria: Inclusion Criteria:

* patients scheduled for weight loss surgery at Massachusetts General Hospital
* Male and female subjects
* age ≥ 18 years

Exclusion Criteria:

* CNS disease with impairment of cognitive function and/or muscle paresis such as stroke, or dementia
* age \< 18 years
* missing or insufficient PSG data to make diagnosis OSA
* impaired decision making capacity

Primary outcomes:
measure: apnea hypopnea index (AHI)
timeFrame: preoperatively for one night of sleep and during 2 hours of recovery room stay
Secondary outcomes:
measure: apneas after opioid bolus self-administration
timeFrame: 5 minutes after each opioid PCA administration
Other outcomes:
Locations:
city: Boston
country: United States
facility: Massachusetts General Hospital
state: Massachusetts
Study officials:
affiliation: Massachusetts General Hospital
name: Matthias Eikermann, MD-PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Malbois M, Giusti V, Suter M, Pellaton C, Vodoz JF, Heinzer R. Oximetry alone versus portable polygraphy for sleep apnea screening before bariatric surgery. Obes Surg. 2010 Mar;20(3):326-31. doi: 10.1007/s11695-009-0055-9. Epub 2010 Jan 6.
citation: Longitudinal Assessment of Bariatric Surgery (LABS) Consortium; Flum DR, Belle SH, King WC, Wahed AS, Berk P, Chapman W, Pories W, Courcoulas A, McCloskey C, Mitchell J, Patterson E, Pomp A, Staten MA, Yanovski SZ, Thirlby R, Wolfe B. Perioperative safety in the longitudinal assessment of bariatric surgery. N Engl J Med. 2009 Jul 30;361(5):445-54. doi: 10.1056/NEJMoa0901836.
citation: Peppard PE, Young T, Palta M, Skatrud J. Prospective study of the association between sleep-disordered breathing and hypertension. N Engl J Med. 2000 May 11;342(19):1378-84. doi: 10.1056/NEJM200005113421901.
citation: Nieto FJ, Young TB, Lind BK, Shahar E, Samet JM, Redline S, D'Agostino RB, Newman AB, Lebowitz MD, Pickering TG. Association of sleep-disordered breathing, sleep apnea, and hypertension in a large community-based study. Sleep Heart Health Study. JAMA. 2000 Apr 12;283(14):1829-36. doi: 10.1001/jama.283.14.1829.
citation: Faccenda JF, Mackay TW, Boon NA, Douglas NJ. Randomized placebo-controlled trial of continuous positive airway pressure on blood pressure in the sleep apnea-hypopnea syndrome. Am J Respir Crit Care Med. 2001 Feb;163(2):344-8. doi: 10.1164/ajrccm.163.2.2005037.
citation: Yaggi HK, Concato J, Kernan WN, Lichtman JH, Brass LM, Mohsenin V. Obstructive sleep apnea as a risk factor for stroke and death. N Engl J Med. 2005 Nov 10;353(19):2034-41. doi: 10.1056/NEJMoa043104.
citation: Meoli AL, Rosen CL, Kristo D, Kohrman M, Gooneratne N, Aguillard RN, Fayle R, Troell R, Kramer R, Casey KR, Coleman J Jr; Clinical Practice Review Committee; American Academy of Sleep Medicine. Upper airway management of the adult patient with obstructive sleep apnea in the perioperative period--avoiding complications. Sleep. 2003 Dec 15;26(8):1060-5. doi: 10.1093/sleep/26.8.1060.
citation: Loadsman JA, Hillman DR. Anaesthesia and sleep apnoea. Br J Anaesth. 2001 Feb;86(2):254-66. doi: 10.1093/bja/86.2.254.
citation: Hillman DR, Loadsman JA, Platt PR, Eastwood PR. Obstructive sleep apnoea and anaesthesia. Sleep Med Rev. 2004 Dec;8(6):459-71. doi: 10.1016/j.smrv.2004.07.002.
citation: Mezzanotte WS, Tangel DJ, White DP. Influence of sleep onset on upper-airway muscle activity in apnea patients versus normal controls. Am J Respir Crit Care Med. 1996 Jun;153(6 Pt 1):1880-7. doi: 10.1164/ajrccm.153.6.8665050.
citation: Hajiha M, DuBord MA, Liu H, Horner RL. Opioid receptor mechanisms at the hypoglossal motor pool and effects on tongue muscle activity in vivo. J Physiol. 2009 Jun 1;587(Pt 11):2677-92. doi: 10.1113/jphysiol.2009.171678. Epub 2009 Apr 29.
citation: White DP. Opioid-induced suppression of genioglossal muscle activity: is it clinically important? J Physiol. 2009 Jul 15;587(Pt 14):3421-2. doi: 10.1113/jphysiol.2009.176388. No abstract available.
citation: Gross JB, Bachenberg KL, Benumof JL, Caplan RA, Connis RT, Cote CJ, Nickinovich DG, Prachand V, Ward DS, Weaver EM, Ydens L, Yu S; American Society of Anesthesiologists Task Force on Perioperative Management. Practice guidelines for the perioperative management of patients with obstructive sleep apnea: a report by the American Society of Anesthesiologists Task Force on Perioperative Management of patients with obstructive sleep apnea. Anesthesiology. 2006 May;104(5):1081-93; quiz 1117-8. doi: 10.1097/00000542-200605000-00026. No abstract available.