Date of Search Database Strategy Number of Results
22/10/21 Embase “heart surgery” OR “CABG” OR “surgery” AND “clinical outcomes” OR “patient-reported outcomes” OR “adverse outcomes” OR “complications” OR “postoperative complications” OR “intraoperative” AND “nasogastric tube” AND “nausea” OR “postoperative nausea” OR “nausea and vomiting” OR “postoperative nausea and vomiting” OR “pneumonia” OR “anesthesia” OR “feeding” OR “feeding apparatus” OR “decompression” 1391
22/10/21 Cochrane library “cardiac surgery” OR “heart surgery” OR “CABG” OR “surgery” AND “outcomes” OR “complications” OR “postoperative” OR “intraoperative” AND “nasogastric tube” AND “nausea” OR “vomiting” OR “pneumonia” OR “anesthesia” OR “feeding” OR “decompression” 452
22/10/21 Medline [(“Thoracic surgery” OR “Coronary Artery Bypass” OR “General surgery” OR “Outcome Assessment, Health Care” OR “postoperative complications” OR “intraoperative complications”) AND (“nausea” OR “postoperative nausea and vomiting” OR “pneumonia” OR “anesthesia” OR “decompression”)] AND (“nasogastric tube” OR “intubation, Gastrointestinal”) 162