• Karin Valkenet, Jaap Ca Trappenburg, Rik Gosselink, Meindert N Sosef, Jerome Willms, Camiel Rosman, Heleen Pieters, Joris Jg Scheepers, Saskia C de Heus, John V Reynolds, Emer Guinan, Jelle P Ruurda, Els He Rodrigo, Philippe Nafteux, Marianne Fontaine, Ewout A Kouwenhoven, Margot Kerkemeyer, Donald L van der Peet, Sylvia W Hania, Richard van Hillegersberg, and Frank Jg Backx.
• Department of Rehabilitation, Nursing Science and Sports, University Medical Center Utrecht, PO Box 85500, Utrecht 3508 GA, The Netherlands. k.valkenet@umcutrecht.nl.
• Trials. 2014 Jan 1;15:144.

BackgroundEsophageal resection is associated with a high incidence of postoperative pneumonia. Respiratory complications account for almost half of the readmissions to the critical care unit. Postoperative complications can result in prolonged hospital stay and consequently increase healthcare costs. In cardiac surgery a preoperative inspiratory muscle training program has shown to prevent postoperative pneumonia and reduce length of hospital stay. While in some surgical centers inspiratory muscle training is already used in the preoperative phase in patients undergoing esophageal resection, the added value of this intervention on the reduction of pulmonary complications has not yet been investigated in large surgical populations other than cardiac surgery in a randomized and controlled study design.Methods/DesignThe effect of a preoperative inspiratory muscle training program on the incidence of postoperative pneumonia in patients undergoing esophageal resection will be studied in a single blind multicenter randomized controlled trial (the PREPARE study). In total 248 patients (age >18 years) undergoing esophageal resection for esophageal cancer will be included in this study. They are randomized to either usual care or usual care with an additional inspiratory muscle training intervention according to a high-intensity protocol which is performed with a tapered flow resistive inspiratory loading device. Patients have to complete 30 dynamic inspiratory efforts twice daily for 7 days a week until surgery with a minimum of 2 weeks. The starting training load will be aimed to be 60% of maximal inspiratory pressure and will be increased based on the rate of perceived exertion.The main study endpoint is the incidence of postoperative pneumonia. Secondary objectives are to evaluate the effect of preoperative inspiratory muscle training on length of hospital stay, duration of mechanical ventilation, incidence of other postoperative (pulmonary) complications, quality of life, and on postoperative respiratory muscle function and lung function.DiscussionThe PREPARE study is the first multicenter randomized controlled trial to evaluate the hypothesis that preoperative inspiratory muscle training leads to decreased pulmonary complications in patients undergoing esophageal resection.Trial RegistrationNCT01893008.

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