Sherif is appointed Honorary Associate Professor of Surgery at the University of Nottingham, teaches medical and nursing under/postgraduates, supervises research, has published over 50 papers and book chapters and delivered over 40 International presentations. To date he has been awarded over £424 000 of research funding. Sherif’s research has been awarded numerous national and international prizes including the prestigious 2010 Moynihan Medal of the Association of Surgeons of Great Britain and Ireland (ASGBI). Sherif is an expert journal reviewer for the following journals: British Journal of Surgery, British Medical Journal, International Journal of Obesity, and Clinical Nutrition among others.

He completed his PhD into the metabolic and cellular effects of carbohydrate-based preconditioning drinks that are used in Enhanced Recovery (ERAS) Protocols
( Sherif has co-authored numerous papers including international guidelines on Enhanced Recovery After Bariatric Surgery ( He also has research expertise on other topics such as perioperative nutrition, enhanced recovery after surgery (ERAS), insulin resistance and the physiological and metabolic effects of bariatric and metabolic surgery. He is invited to National and International meetings to speak on these topics.

Some of Sherif’s publications are listed below and can be accessed via Pubmed (

  • Predictors of inadequate weight loss after laparoscopic bypass for morbid obesity. Al-Khyatt W, Ryall R, Leeder P, Ahmed J, Awad S. Obesity Surgery 2017. In press DOI 10.1007/s11695-016-2500-x
  • Guidelines for perioperative care in Bariatric Surgery: Enhanced Recovery After Surgery (ERAS) Society Recommendations. Thorell A, MacCormick AD, Awad S, Reynold N, Roulin D, Demartines N, Vignaud M, Alvarez A, Singh PM, Lobo DN. World Journal of Surgery 2016. DOI 10.1007/s00268-016-3492-3
  • Laparoscopic Roux en-Y gastric bypass using a modified retrocolic-supracolic approach: Outcomes from 300 patients. Al-Khyatt W, Bull CA, Awad S, Ahmed J. World Journal of Surgery 2016; 40(8): 1918-1924
  • Mid-term remission of type 2 diabetes mellitus after laparoscopic Roux en-Y gastric bypass. Vasas P, Al-Khyatt W, Idris I, Leeder P, Awan A, Awad S, Ahmed J. World Journal of Surgery 2016; 40 (11): 2719-2725
  • Enhanced Recovery After Bariatric Surgery. Awad S. Obesity, Bariatric and Metabolic Surgery: A Practical Guide. 2016
  • Fluid Management. Awad S and Lobo DN. The SAGES/ERAS Society Manual of Enhanced Recovery Programs for Gastrointestinal Surgery. Springer. 2016
  • Management of Surgical Drains. El-Sharkawy A and Awad S. Gynecologic and Obstetric Surgery: Challenges and Management Options. Wiley-Blackwell Publishing. 2016
  • Outcomes of linear-stapled versus hand-sewn gastrojejunal anastomosis in laparoscopic Roux en-Y gastric bypass. Awad S, Aguilo R, Agrawal S, Ahmed J. Surgical Endoscopy 2015; 29(8): 2278-2283
  • Obesity-related insulin resistance: implications for the surgical patient. Tewari N, Awad S, Macdonald IA, Lobo DN. International Journal of Obesity 2015; 39: 1575-1588
  • Acute Kidney Injury after Major Abdominal Surgery: Epidemiology and Management Challenges. Awad S, Lobo DN. Peri-operative Kidney Injury: Principles of Risk Assessment, Diagnosis and Treatment. Springer. 2015
  • Enhanced Recovery After Bariatric Surgery (ERABS): Clinical outcomes from a tertiary referral bariatric centre. Awad S, Carter S, Purkayastha S, Hakky S, Moorthy K, Cousins J, Ahmed AR. Obesity Surgery 2014; 24(5): 753-58
  • Should chloride-rich crystalloids remain the main stay of fluid resuscitation to prevent “pre-renal” acute kidney injury? – Con. Lobo DN, Awad S. Kidney International 2014; 86 (6): 1096-1105
  • The utilization of the MUST nutritional screening tool on vascular surgical wards. Tewari N, Rodrigues J, Altaf N, Awad S. BMJ Quality Improvement Reports 2013; u201374.w1122 DOI: 10.1136/bmjquality.u201374.w1122
  • A meta-analysis of randomized controlled trials on preoperative oral carbohydrate treatment in elective surgery. Awad S, Varadhan K, Ljungqvist O, Lobo DN. Clinical Nutrition 2013; 32:34-44
  • Regulation of food intake after surgery and the gut brain axis. Tewari N, Awad S, Lobo DN. Current Opinion in Clinical Nutrition and Metabolic Care 2013; 16:569-575.
  • Metabolic-conditioning to attenuate the adverse effects of perioperative fasting and improve patient outcomes. Awad S, Lobo DN. Current Opinion in Clinical Nutrition and Metabolic Care 2012; 15(2):194-200
  • Perioperative perturbations in carnitine metabolism are attenuated by preoperative carbohydrate loading: another mechanism by which preoperative feeding may attenuate development of postoperative insulin resistance. Awad S, Stephens F, Shannon C, Lobo DN. Clinical Nutrition 2012; 31(5): 717-20
  • A randomized controlled double-blind study on the effects of 1-liter intraoperative infusions over 1 hour of 4% succinylated gelatine (Gelofusine®) and 6% hydroxyethyl starch (Voluven®) on blood volume. Awad S, Dharmavaram S, Wearn C, Dube M, Lobo DN. British Journal of Anaesthesia 2012; 109:168-176
  • Marked changes in body composition following neoadjuvant chemotherapy for oesophagogastric cancer. Awad S, Tan BH, Cui H, Bhalla A, Fearon KCH, Parsons SL, Catton JA, Lobo DN. Clinical Nutrition 2012; 31: 74-77
  • One and two-year outcomes and predictors of mortality following emergency laparotomy: a consecutive series from a United Kingdom teaching hospital. Awad S, Herrod PJJ, Palmer R, Carty H, Abercrombie JF, Brooks A, de Beer T, Mole J, Lobo DN. World Journal of Surgery 2012; 36:2060-2070
  • A prospective randomised study comparing oral 13C-bicarbonate tracer technique versus indirect calorimetry for measurement of energy expenditure in adults. Awad S, Cui H, Wright JW, Jackson S, Macdonald IA, Lobo DN. eSPEN 2012; 7(1): e1-4
  • What’s new in perioperative nutritional support? Awad S, Lobo DN. Current Opinion in Anesthesiology 2011; 24:339-348
  • A randomized crossover study on the effects of glutamine and lipid on gastric emptying time of a preoperative carbohydrate drink. Awad S, Blackshaw PE, Wright JW, Macdonald IA, Perkins AC, Lobo DN. Clinical Nutrition 2011; 30: 165-171
  • A randomized crossover study of the metabolic and hormonal responses following two preoperative conditioning drinks. Awad S, Fearon KCH, Macdonald IA, Lobo DN. Nutrition 2011; 27: 938-942
  • Mucins and CD56 as markers of tumour invasion and prognosis in periampullary cancers. Aloysius MM, Zaitoun AM, Awad S, Ilyas M, Rowlands BJ, Lobo DN. British Journal of Surgery 2010; 97:1269-1278
  • Lateral thermal spread: Comparison of monopolar and bipolar diathermy, the Harmonic Scalpel™ and the Ligasure™. Sutton PA, Awad S, Perkins AC, Lobo DN. British Journal of Surgery 2010; 97:428-433
  • Cellular mechanisms underlying the protective effects of preoperative feeding: a randomized study investigating muscle and liver glycogen content, mitochondrial function, gene and protein expression. Awad S, Constantin-Teodosiu D, Constantin D, Rowlands BJ, Fearon KCH, Macdonald, IA, Lobo DN. Annals of Surgery 2010; 252: 247-253
  • The effects of fasting and refeeding with a ‘metabolic preconditioning’ drink on substrate reserves and mitochondrial function. Awad S, Stephenson MC, Marciani L, Placidi, E, Constantin-Teodosiu D, Gowland PA, Spiller RC, Fearon KCH, Morris PG, Macdonald IA, Lobo DN. Clinical Nutrition 2010; 29: 538-544
  • Hypo- and hypernatraemia in surgical patients: Is there room for improvement? Herrod PJJ, Awad S, Redfern A, Morgan L, Lobo DN. World Journal of Surgery 2010; 34:495-499
  • Knowledge and attitudes of surgical trainees towards nutritional support: Food for thought. Awad S, Herrod PJJ, Forbes E, Lobo DN. Clinical Nutrition 2010; 29: 243-248
  • Short-term starvation and mitochondrial dysfunction – a possible mechanism leading to postoperative insulin resistance. Awad S, Constantin-Teodosiu D, Macdonald IA, Lobo DN. Clinical Nutrition 2009; 28: 497-509
  • Fluid and electrolyte balance: The impact of goal directed teaching. Awad S, Allison SP, Lobo DN. Clinical Nutrition 2008; 27: 473-78
  • The history of 0.9% Saline. Awad S, Allison SP, Lobo DN. Clinical Nutrition 2008; 27: 179-88
  • An “all-comers” venous duplex scan policy for patients with lower limb varicose veins attending a one-stop vascular clinic: is it justified? Makris S, Karkos C, Awad S, London NJM. European Journal of Vascular & Endovascular Surgery 2006; 32: 718-724
  • The impact of diabetes on current revascularization practice and clinical outcome in patients with critical lower limb ischemia. Awad S, Karkos C, Serracino-Inglott F, Cooper N, Butterfield JS, Ashleigh R, Nasim A. European Journal of Vascular & Endovascular Surgery 2006; 32:51-59

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