Bartels K, Kaizer A, Jameson L, Bullard K, Dingmann C, Fernandez-Bustamante A Hypoxemia Within the First 3 Postoperative Days Is Associated With Increased 1-Year Postoperative Mortality After Adjusting for Perioperative Opioids and Other Confounders. Anesth Analg. 2020 Aug;131(2):555-563. doi: 10.1213/ANE.0000000000004553.
Carney MJ, Weissler JM, Fox JP, Tecce MG, Hsu JY, Fischer JP Trends in open abdominal surgery in the United States-Observations from 9,950,759 discharges using the 2009-2013 National Inpatient Sample (NIS) datasets. Am J Surg. 2017 Aug;214(2):287-292. doi: 10.1016/j.amjsurg.2017.01.001. Epub 2017 Jan 12.
Cassidy MR, Rosenkranz P, McCabe K, Rosen JE, McAneny D I COUGH: reducing postoperative pulmonary complications with a multidisciplinary patient care program. JAMA Surg. 2013 Aug;148(8):740-5. doi: 10.1001/jamasurg.2013.358.
Ceylan B, Khorshid L, Gunes UY, Zaybak A Evaluation of oxygen saturation values in different body positions in healthy individuals. J Clin Nurs. 2016 Apr;25(7-8):1095-100. doi: 10.1111/jocn.13189. Epub 2016 Feb 16.
Craig DB, Wahba WM, Don HF, Couture JG, Becklake MR "Closing volume" and its relationship to gas exchange in seated and supine positions. J Appl Physiol. 1971 Nov;31(5):717-21. doi: 10.1152/jappl.1971.31.5.717. No abstract available.
Haines KJ, Skinner EH, Berney S; Austin Health POST Study Investigators Association of postoperative pulmonary complications with delayed mobilisation following major abdominal surgery: an observational cohort study. Physiotherapy. 2013 Jun;99(2):119-25. doi: 10.1016/j.physio.2012.05.013. Epub 2012 Sep 23.
Hardie JA, Morkve O, Ellingsen I Effect of body position on arterial oxygen tension in the elderly. Respiration. 2002;69(2):123-8. doi: 10.1159/000056314.
Hedenstierna G, Edmark L Mechanisms of atelectasis in the perioperative period. Best Pract Res Clin Anaesthesiol. 2010 Jun;24(2):157-69. doi: 10.1016/j.bpa.2009.12.002.
Hewlett AM, Branthwaite MA Postoperative pulmonary function. Br J Anaesth. 1975 Feb;47(2):102-7. doi: 10.1093/bja/47.2.102. No abstract available.
LAS VEGAS investigators Epidemiology, practice of ventilation and outcome for patients at increased risk of postoperative pulmonary complications: LAS VEGAS - an observational study in 29 countries. Eur J Anaesthesiol. 2017 Aug;34(8):492-507. doi: 10.1097/EJA.0000000000000646.
Lillemoe HA, Aloia TA Enhanced Recovery After Surgery: Hepatobiliary. Surg Clin North Am. 2018 Dec;98(6):1251-1264. doi: 10.1016/j.suc.2018.07.011. Epub 2018 Aug 24.
Ljungqvist O, Scott M, Fearon KC Enhanced Recovery After Surgery: A Review. JAMA Surg. 2017 Mar 1;152(3):292-298. doi: 10.1001/jamasurg.2016.4952.
Lumb AB, Nunn JF Respiratory function and ribcage contribution to ventilation in body positions commonly used during anesthesia. Anesth Analg. 1991 Oct;73(4):422-6. doi: 10.1213/00000539-199110000-00010.
Lyden K, John D, Dall P, Granat MH Differentiating Sitting and Lying Using a Thigh-Worn Accelerometer. Med Sci Sports Exerc. 2016 Apr;48(4):742-7. doi: 10.1249/MSS.0000000000000804.
Mehta JH, Cattano D, Brayanov JB, George EE Assessment of perioperative minute ventilation in obese versus non-obese patients with a non-invasive respiratory volume monitor. BMC Anesthesiol. 2017 Apr 26;17(1):61. doi: 10.1186/s12871-017-0352-0.
Meyers JR, Lembeck L, O'Kane H, Baue AE Changes in functional residual capacity of the lung after operation. Arch Surg. 1975 May;110(5):576-83. doi: 10.1001/archsurg.1975.01360110122020.
Noba L, Rodgers S, Chandler C, Balfour A, Hariharan D, Yip VS Enhanced Recovery After Surgery (ERAS) Reduces Hospital Costs and Improve Clinical Outcomes in Liver Surgery: a Systematic Review and Meta-Analysis. J Gastrointest Surg. 2020 Apr;24(4):918-932. doi: 10.1007/s11605-019-04499-0. Epub 2020 Jan 3.
Sabate S, Mazo V, Canet J Predicting postoperative pulmonary complications: implications for outcomes and costs. Curr Opin Anaesthesiol. 2014 Apr;27(2):201-9. doi: 10.1097/ACO.0000000000000045.
Schumann R, Kwater AP, Bonney I, Ladd D, Kim J, Gupta A, Gumbert SD, Pivalizza EG Respiratory volume monitoring in an obese surgical population and the prediction of postoperative respiratory depression by the STOP-bang OSA risk score. J Clin Anesth. 2016 Nov;34:295-301. doi: 10.1016/j.jclinane.2016.04.029. Epub 2016 Jun 1.
Shander A, Fleisher LA, Barie PS, Bigatello LM, Sladen RN, Watson CB Clinical and economic burden of postoperative pulmonary complications: patient safety summit on definition, risk-reducing interventions, and preventive strategies. Crit Care Med. 2011 Sep;39(9):2163-72. doi: 10.1097/CCM.0b013e31821f0522.
Spanjersberg WR, Reurings J, Keus F, van Laarhoven CJ Fast track surgery versus conventional recovery strategies for colorectal surgery. Cochrane Database Syst Rev. 2011 Feb 16;(2):CD007635. doi: 10.1002/14651858.CD007635.pub2.
van den Bosch OFC, Alvarez-Jimenez R, Stam MMH, den Boer FC, Loer SA Variations in respiratory rate do not reflect changes in tidal volume or minute ventilation after major abdominal surgery. J Clin Monit Comput. 2021 Aug;35(4):787-796. doi: 10.1007/s10877-020-00538-3. Epub 2020 Jun 1.
Williams GW 2nd, George CA, Harvey BC, Freeman JE A Comparison of Measurements of Change in Respiratory Status in Spontaneously Breathing Volunteers by the ExSpiron Noninvasive Respiratory Volume Monitor Versus the Capnostream Capnometer. Anesth Analg. 2017 Jan;124(1):120-126. doi: 10.1213/ANE.0000000000001395.
Zeng C, Lagier D, Lee JW, Vidal Melo MF Perioperative Pulmonary Atelectasis: Part I. Biology and Mechanisms. Anesthesiology. 2022 Jan 1;136(1):181-205. doi: 10.1097/ALN.0000000000003943.
Zwillich C, Kryger M, Weil J Hypoventilation: consequences and management. Adv Intern Med. 1978;23:287-306. No abstract available.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.