Maarten van Egmond

37 Preoperative functional status and postoperative complications 2 REFERENCES 1. Grotenhuis BA, Wijnhoven BP, Grune F, van Bommel J, Tilanus HW, van Lanschot JJ. Preoperative risk assessment and prevention of complications in patients with esophageal cancer. J Surg Oncol . 2010;101(3):270-278. 2. Feeney C, Reynolds JV, Hussey J. Preoperative physical activity levels and postoperative pulmonary complications post-esophagectomy. Dis Esophagus . 2011;24(7):489-494. 3. Rouvelas I, Lagergren J. The impact of volume on outcomes after oesophageal cancer surgery. ANZ J Surg . 2010;80(9):634- 641. 4. Feeney C, Hussey J, Carey M, Reynolds JV. Assessment of physical fitness for esophageal surgery, and targeting interventions to optimize outcomes. Dis Esophagus . 2010;23(7):529-539. 5. Nakamura M, Iwahashi M, Nakamori M, et al. An analysis of the factors contributing to a reduction in the incidence of pulmonary complications following an esophagectomy for esophageal cancer. Langenbecks Arch Surg . 2008;393(2):127-133. 6. Valkenet K, van de Port, I. G., Dronkers JJ, de Vries WR, Lindeman E, Backx FJ. The effects of preoperative exercise therapy on postoperative outcome: A systematic review. Clin Rehabil . 2011;25(2):99-111. 7. Wang TJ. Concept analysis of functional status. Int J Nurs Stud . 2004;41(4):457-462. 8. Leidy NK. Using functional status to assess treatment outcomes. Chest . 1994;106(6):1645- 1646. 9. Topp R, Ditmyer M, King K, Doherty K, Hornyak J,3rd. The effect of bed rest and potential of prehabilitation on patients in the intensive care unit. AACN Clin Issues . 2002;13(2):263-276. 10. Hulzebos EH, Helders PJ, Favie NJ, De Bie RA, Brutel de la Riviere, A., Van Meeteren NL. Preoperative intensive inspiratory muscle training to prevent postoperative pulmonary complications in high-risk patients undergoing CABG surgery: A randomized clinical trial. JAMA . 2006;296(15):1851-1857. 11. Chen CH, Ho-Chang, Huang YZ, Hung TT. Hand-grip strength is a simple and effective outcome predictor in esophageal cancer following esophagectomy with reconstruction: A prospective study. J Cardiothorac Surg . 2011;6:98-98. 12. Dronkers JJ, Chorus AM, van Meeteren NL, Hopman-Rock M. The association of pre-operative physical fitness and physical activity with outcome after scheduled major abdominal surgery. Anaesthesia . 2013;68(1):67-73. 13. Nafteux P, Durnez J, Moons J, et al. Assessing the relationships between health-related quality of life and postoperative length of hospital stay after oesophagectomy for cancer of the oesophagus and the gastro- oesophageal junction. Eur J Cardiothorac Surg . 2013;44(3):525-33; discussion 533. 14. Healy LA, Ryan AM, Moore J, et al. Health- related quality of life assessment at presentation may predict complications and early relapse in patients with localized cancer of the esophagus. Dis Esophagus . 2008;21(6):522-528. 15. Dronkers JJ, Lamberts H, Reutelingsperger IM, et al. Preoperative therapeutic programme for elderly patients scheduled for elective abdominal oncological surgery: A randomized controlled pilot study. Clin Rehabil . 2010;24(7):614-622. 16. Biere SS, van Berge Henegouwen, M. I., Maas KW, et al. Minimally invasive versus open oesophagectomy for patients with oesophageal cancer: A multicentre, open- label, randomized controlled trial. Lancet . 2012;379(9829):1887-1892. 17. World Health Organization. Towards a common language for functioning, disability