Abstract
Bariatric surgery has serious associated medical comorbidity and procedure-related risks and is, thus, considered an intermediate-to-high-risk non-cardiac surgery. Altered respiratory mechanics, obstructive sleep apnea (OSA), and less often, pulmonary hypertension and postoperative pulmonary embolism are the major contributors to poor pulmonary outcomes in obese patients. Attention to posture and positioning is critical in patients with OSA. Suspected OSA patients requiring intravenous narcotics should be kept in a monitored setting with frequent assessments and naloxone kept at the bedside. Use of reverse Tredelenburg position, preinduction, maintenance of positive end-expiratory pressure, and use of continuous positive airway pressure can help improve oxygenation in the perioperative period.
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Vaughan RW, Wise L. Intraoperative arterial oxygenation in obese patients. Ann Surg 1976;184:35–42.
Flancbaum L, Choban PS. Surgical implications of obesity. Annu Rev Med 1998;49:215–34.
Livingston E, Huerta S, Arthur D, et al. Male gender is a predictor of morbidity and age a predictor of mortality for patients undergoing gastric bypass surgery. Ann Surg 2002;236(4):576–82.
Sapala JA, Wood MH, Schuhknecht MP, et al. Fatal pulmonary embolism after bariatric operations for morbid obesity: a 24-year retrospective analysis. Obes Surg 2003;13(6):819–25 (Dec).
Pelosi P, Croci M, Ravagnan I, et al. The effects of body mass on lung volumes, respiratory mechanics, and gas exchange during general anesthesia. Anesth Analg 1998;87:654–60.
Bedell GN, Wilson WR, Seebohm PM. Pulmonary function in obese persons. J Clin Invest 1958;37:1049–61.
Pelosi P, Croci M, Ravagnan I, et al. Total respiratory system, lung and chest wall mechanics in sedated-paralyzed postoperative morbidly obese patients. Chest 1996;109:144–51.
Sprung J, Whalley DG, Falcone T. The effects of tidal volume and respiratory rate on oxygenation and respiratory mechanics during laparoscopy in morbidly obese patients. Anesth Analg 2003;97:268–74.
Pelosi P, Croci M, Ravagnan I. Respiratory system mechanics in sedated, paralyzed, morbidly obese patients. J Appl Physiol 1997;82:811–8.
O’Keeffe T, Patterson EJ. Evidence supporting routine polysomnography before bariatric surgery. Obes Surg 2004;14:23–6.
Frey WC, Pilcher J. Obstructive sleep-related breathing disorders in patients evaluated for bariatric surgery. Obes Surg 2003;13(5):676–83 (Oct).
Hallowell P, Stellato TA, Schuster M, et al. Potentially life threatening sleep apnea is unrecognized without aggressive evaluation. Am J Surg 2007;193:364–7.
Sharma SK, Kurian S, Malik V, et al. A stepped approach for prediction of obstructive sleep apnea in overtly asymptomatic obese subjects: a hospital based study. Sleep Med 2004;5:351–7.
Gupta R, Parvizi J, Hanssen A, et al. Postoperative complications in patients with obstructive sleep apnea syndrome undergoing hip or knee replacement: a case-control study. Mayo Clin Proc 2001;76(9):897–905.
Fernandez AZ Jr, DeMaria EJ, Tichansky DS, et al. Experience with over 3000 open and laparoscopic bariatric procedures: multivariate analysis of factors related to mortality and leak. Surg Endosc 2003;17 Suppl:S187 (abstract).
Ballantyne GH, et al. Predictors of prolonged hospital stay following open and laparoscopic gastric bypass for morbid obesity: body mass index, length of surgery, sleep apnea, asthma and the metabolic syndrome. Obes Surg 2004;14:1042–50.
Cooney RN, Haluck RS, Ku J, et al. Analysis of cost outliers after gastric bypass surgery: what can we learn? Obes Surg 2003;13(1):29–36.
Sajkov D, Wang T, Saunders NA, et al. Daytime pulmonary hemodynamics in patients with obstructive sleep apnea without lung disease. Am J Respir Crit Care Med 1999;159(5 Pt 1):1518–26 (May).
Sanner BM, Doberauer C, Konermann M, et al. Pulmonary hypertension in patients with obstructive sleep apnea syndrome. Arch Intern Med 1997;157(21):2483–7 (Nov 24).
Bady E, Achkar A, Pascal S, et al. Pulmonary arterial hypertension in patients with sleep apnoea syndrome. Thorax 2000;55 (11):934–9 (Nov).
Michelakis ED, Weir FK. Anorectic drugs and pulmonary hypertension from the bedside to the bench. Am J Med Sci 2001;21(4):292–9.
Valencia-Flores M, Orea A, Herrera M, et al. Effect of bariatric surgery on obstructive sleep apnea and hypopnea syndrome, electrocardiogram, and pulmonary arterial pressure. Obes Surg 2004;14(6):755–62 (Jun–Jul).
Coon WW, et al. Risk factors in pulmonary embolism. Surg Gynecol Obstet 1976;143(3):385–90 (Sep).
Pasulka PS, Bistrian BR, Benotti BN, et al. The risks of surgery in obese patients. Ann Intern Med 1986;104(4):540–6 (Apr).
Gargiulo NJ, Veith FJ, Lipsitz EC, et al. Experience with inferior vena cava filter placement in patients undergoing open gastric bypass procedures. J Vasc Surg 2006;44(6):1301–5.
Cartagena R, et al. Preoperative evaluation of patients with obesity and obstructive sleep apnea. Anesthesiol Clin North Am 2005;23:463–78.
Benumof JL. Obesity, sleep apnea, the airway and anesthesia. Curr Opin Anaesthesiol 2004;17(1):21–30.
Siyam MA, Benhamou D. Difficult endotracheal intubation in patients with sleep apnea syndrome. Anesth Analg 2002;95(4):1098–102.
Mallampati SR, Gatt SP, Gugino LD, et al. A clinical sign to predict difficult tracheal intubation: a prospective study. Can Anesthesia Soc J 1985;32:429–34.
Kheterpal S, Han R, Tremper KK, et al. Incidence and predictors of difficult and impossible mask ventilation. Anesthesiology 2006;105:885–91.
Dixon JB, Schachter LM, O’Brien PE. Predicting sleep apnea and excessive day sleepiness in the severely obese: indicators for polysomnography. Chest 2003;123:1134–41.
Hillman DR, Loadsman JA, Platt PR, et al. Obstructive sleep apnoea and anesthesia. Sleep Med Rev 2004;8:459–71.
Neill AM, Angus SM, Sajkov D. Effects of sleep posture on upper airway stability in patients with obstructive sleep apnea. Am J Respir Crit Care Med 1997;155:199.
Ostermeier A, Roizen M, Hautkappe M, et al. Three sudden postoperative patients respiratory arrests associated with epidural opioids in with sleep apnea. Anesth Analg 1997;85(2):452–60.
Kaw R, Michota F, Jaffer A, et al. Unrecognized sleep apnea in the surgical patient: implications for the perioperative setting. Chest 2006;129:198–205 (January).
Shenkman Z, Shir Y, Brodsky JB. Perioperative management of the obese patient. Br J Anaesth 1993;70:349–59.
Shibutani K, Inchiosa MA, Sawada K, Bairamian M. Pharmacokinetic mass of fentanyl for postoperative analgesia in lean and obese patients. Br J Anaesth 2005;95:377–83.
Wilson AT, Reilly CS. Anaesthesia and the obese patient. Int J Obes Relat Metab Disord 1993;17:427–35.
Perilli V, Sollazi L, Modessi M, et al. Comparison of positive end-expiratory pressure with reverse Tredelenburg position in morbidly obese patients undergoing bariatric surgery: effects on hemodynamics and gas exchange. Obes Surg 2003;13:605–9 (Aug).
Pelosi P, Ravagnan I, Giurati G. Positive end-expiratory pressure improves respiratory function in obese but not in normal subjects during anesthesia and paralysis. Anesthesiology 1999;91:1221–31.
Dixon BJ, Dixon JB, Carden JR, et al. Preoxygenation is more effective in the 25° head-up position than in the supine position in severely obese patients: a randomized controlled study. Anesthesiology 2005;102(6):1110–5; discussion 5A (Jun).
Coussa M, Proietti S, Schnyder P. Prevention of atelectasis formation during the induction of general anesthesia in morbidly obese patients. Anesth Analg 2004;98:1491–5.
Jorris JL, Soltiaux TM, Chiche JD, et al. Effect of bi-level positive airway pressure (BIPAP) nasal ventilation on the postoperative pulmonary restrictive syndrome in obese patients undergoing gastroplasty. Chest 1997;111:665–70.
Schmidt GB, Bombeck CT, Bennett EJ, et al. Continuous positive airway pressure (CPAP) in the prophylaxis of adult respiratory distress syndrome (ARDS). Langenbecks Arch Chir 1975; Suppl:439–42.
El Solh A, Aquilina A, Pineda L, et al. Noninvasive ventilation for prevention of post-extubation respiratory failure in obese patients. Eur Respir J 2006;28:588–95.
Ebeo CT, Benotti PN, Byrd RP, et al. The effect of bi-level positive airway pressure on postoperative pulmonary function following gastric surgery for obesity. Respir Med 2002;96:672–6.
Hers V, Liisto G, Dury M, et al. Residual effect of CPAP applied for part of the night in patients with obstructive sleep apnea. Eur Respir J 1997;10:973–76.
Reeder MK, Goldman MD, Loh L, et al. Postoperative obstructive sleep apnea: hemodynamic effects of treatment with nasal CPAP. Anesthesia 1991;46:849–53.
Lin CC. Effect of nasal CPAP on ventilatory drive in normocapnic and hypercapnic patients with obstructive sleep apnea syndrome. Eur Respir J 1994;7(11):2005–10.
Lankford DA, Proctor CD, Richard R. Continuous positive airway pressure (CPAP) changes in bariatric surgery patients undergoing rapid weight loss. Obes Surg 2005;15:336–41.
Sergio H, Scott D, Robert S, et al. Safety and efficacy of postoperative continuous positive airway pressure to prevent pulmonary complications after Roux-en-Y gastric bypass. J Gastrointest Surg 2002;6(3):354–8.
Joris JL, Sottiaux TM, Chiche JD, et al. Effect of bi-level positive airway pressure (BiPAP) nasal ventilation on the postoperative pulmonary restrictive syndrome in obese patients undergoing gastroplasty. Chest 1997;111:665–70.
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Kaw, R., Aboussouan, L., Auckley, D. et al. Challenges in Pulmonary Risk Assessment and Perioperative Management in Bariatric Surgery Patients. OBES SURG 18, 134–138 (2008). https://doi.org/10.1007/s11695-007-9282-0
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DOI: https://doi.org/10.1007/s11695-007-9282-0