David graduated from Cardiff University medical school with honours in 2007. He completed the majority of his basic and higher surgical training in Wales and the West Midlands and was awarded an MD following a period of research in oesophagogastric cancer. Further specialist oesophagogastric surgical training was undertaken in Seoul, Hong Kong and Oxford prior to being appointed as a Consultant in Derriford Hospital, Plymouth in November 2019.
Qualifications
MB BCh (Hons.) MD FRCS
Professional membership
Royal College of Surgeons of EnglandAssociation of Upper GI Surgeons of Great Britain and Ireland
British Obesity and Metabolic Surgical Society
British Obesity and Metabolic Surgical Society
Roles on external bodies
NIHR South West Upper GI Cancer Research Lead
Teaching
Teaching interests
Postgraduate
- Instructor and Faculty Member for the following courses:
Endosocpic Simulator course, Care of the Critically Ill Surgical Patient, Basic Surgical Skills, MRCS Part B, FRCS Section 2 revision course by Doctors Academy.
Undergraduate
- Tutor – Special Study Unit (SSU) Team Skills Observational Placements, Year 4
- Clinical Reasoning Tutor, Year 3
Research
Research interests
Speciality and subject area for research:
Oesophago-gastric cancer
Bariatric and metabolic surgery
Benign upper GI conditions: Hiatal hernia, achalasia and gallstones
Director of Studies for two Doctor of Medicine (MD) students (University of Plymouth)
Delayed gastric emptying after oesophagectomy (2020-2022)
Optimal surgical management for patients with gastro-oesophageal junctional cancer (2023-present)
Chief Investigator (CI):
MACAFI (Multicentre Audit of Cholecystostomy and Further Interventions)
PPD (Prophylactic pyloric dilatation during oesophagectomy)
Oesophago-gastric cancer
Bariatric and metabolic surgery
Benign upper GI conditions: Hiatal hernia, achalasia and gallstones
Director of Studies for two Doctor of Medicine (MD) students (University of Plymouth)
Delayed gastric emptying after oesophagectomy (2020-2022)
Optimal surgical management for patients with gastro-oesophageal junctional cancer (2023-present)
Chief Investigator (CI):
MACAFI (Multicentre Audit of Cholecystostomy and Further Interventions)
PPD (Prophylactic pyloric dilatation during oesophagectomy)
Surgical management of GOJ tumours
Principle Investigator (PI):
OCCAMS (Oesophageal cancer clinical and molecular stratification) - Cambridge
HARP-2 (Statins for lung protection in one-lung ventilation) - Belfast
SARONG (Surveillance after oesophageal and gastric cancer resections) - Oxford
AROMA (Augmented Response of Volatile Biomarkers in the Assessment of Oesophagogastric cancer) - Imperial
Centre Lead for the following international multi-centre collaborative studies:
SPACE-FLOT (Survival after FLOT chemotherapy) - Australia
ACCEPT (Support for screening for Barrett’s oesophagus) - Netherlands
CLEO (Chyle leak after oesophagectomy) - Birmingham
IGAA (International oesophagogastric anastomosis audit) - Birmingham
ROSE (Electronic symptom monitoring post OG resections) - Bristol
Principle Investigator (PI):
OCCAMS (Oesophageal cancer clinical and molecular stratification) - Cambridge
HARP-2 (Statins for lung protection in one-lung ventilation) - Belfast
SARONG (Surveillance after oesophageal and gastric cancer resections) - Oxford
AROMA (Augmented Response of Volatile Biomarkers in the Assessment of Oesophagogastric cancer) - Imperial
Centre Lead for the following international multi-centre collaborative studies:
SPACE-FLOT (Survival after FLOT chemotherapy) - Australia
ACCEPT (Support for screening for Barrett’s oesophagus) - Netherlands
CLEO (Chyle leak after oesophagectomy) - Birmingham
IGAA (International oesophagogastric anastomosis audit) - Birmingham
ROSE (Electronic symptom monitoring post OG resections) - Bristol
Publications
Journals
Publications
Original articles
Total number 49
Senior author 12 (7 impact factor > 2)
1st author 15 (12 impact factor >2)
Citation indices
Citations 1262
h-index22
i10-index35
PUBLICATIONS
Original Articles
1. Walmsley J, Ariyarathenam A, Berrisford R, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Esophagectomy or total gastrectomy for the management of Siewert II gastro-esophageal junction cancer. A systematic review and meta-analysis. J Gastrointest Surg2023 Apr 3 epub.
2. Abdelrahim G, MacCormick A, Jenkins P, Ghauri S, Gafoor N, Chan D. Transhepatic versus transperitoneal approach in percutaneous cholecystostomy: a meta-analysis. Clin Rad2023;78:459-465.
3. Jenkins P, MacCormick A, Zhong J, Makris GC, Gafoor N, Chan D. Transhepatic or transperitoneal technique for cholecystostomy: Results of the Multicentre Retrospective Audit of Cholecystostomy and Further interventions (MACAFI). Br J Radiol2023 Jan 27 epub.
4. MacCormick A, MacCormick A, Zhong J, Makris GC, Gafoor N, Chan D. Nationwide Outcomes Following Percutaneous Cholecystostomy for Acute Calculous Cholecystitis and the Impact of COVID-19: Results of the Multicentre Audit of Cholecystostomy and Further interventions (MACAFI). J Vasc Int Radiol2023;34:260-276.
5. Abdelrahman M, Ariyarathenam A, Berrisford R, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Systematic review and meta-analysis of the influence of prophylactic pyloric balloon dilatation in the prevention of early delayed gastric emptying after esophagectomy. Dis Eso2022;35:1-7.
6. Joshi A, Borraez-Segura B, Vargas L, Herbella FAM, Chan D, Answer M et al. Impact of COVID-19 on Surgical Education (COVIDSurEd): A Global Overview Across Six Continents. J Social Innovations2022;14:1-22.
7. Dutt K, Paice C, Caleshu C, Ariyarathenam A, Humphreys ML, Chan DSY. Short-term outcomes after bariatric surgery during the COVID-19 pandemic. World J Lap Surg2022;15:26-30.
8. Jones R, MacCormick A, Ariyarathenam A, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Urgent elective laparoscopic cholecystectomy during the COVID-19 pandemic. World J Lap Surg2022;15:87-89.
9. MacCormick A, Jenkins P, Gafoor N, Chan D. Percutaneous transcystic removal of gallbladder and common bile duct stones: a narrative review. Acta Radiol2022;63:571-576.
10. Sheath C, Abdelrahman M, MacCormick A, Chan D. Paediatric appendicitis during the COVID-19 pandemic. J Paediatr Child Health2021;57:986-989.
11. Chan DSY, MacCormick A, Rashid B, Ariyarathenam A, Humphreys L, Sanders G, Wheatley T, Berrisford R. Short-term outcomes after Ivor-Lewis oesophagectomy during the COVID-19 pandemic. Ann R Coll Surg Engl2021;103:134-137.
12. Powell AG, Wheat J, Patel N, Chan DSY, Foliaki A, Roberts SA, Lewis WG. Value of individual surgeon performance metrics as quality assurance measures in oesophagogastric cancer surgery. BJS Open2020;4:91-100.
13. Barlow RC, Chan DSY, Mayor S, Perkins C, Lawton HL, Powell AG, Lewis WG. Fit for cancer treatment: a prospective feasibility study of primary care initiated prehabilitation for patients with suspected cancer. BJGP Open2018;2(4)
14. Vercoe H, Mulla M, Lewis WG, Foliaki A, Chan DSY. Systematic review and meta-analysis on the treatment of diffuse esophageal spasm. Eur Surg2019;51:239-245.
15. Patel N, Foley KG, Powell AG, Wheat JR, Chan D, Fielding P, Roberts SA, Lewis WG. Propensity score analysis of 18-FDG PET/CT enhanced staging in patients undergoing surgery for esophageal cancer. Eur J Nucl Med Mol Imaging2019;46:801-809.
16. Pandey G, Mulla M, Lewis WG, Foliaki A, Chan DSY. Systematic review and meta-analysis of Radiofrequency Ablation effectiveness in low-grade dysplastic Barrett’s Esophagus. Endoscopy2018;50:953-960.
17. Brown J, Lewis WG, Foliaki A, Clark GWB, Blackshaw G, Chan DSY. Colonic Interposition after adult oesophagectomy: systematic review and meta-analysis of conduit choice and outcome. J Gastrointest Surg2018;22:1104-1111.
18. Abdelrahman T, Latif A, Chan DSY, Farag M, Lewis WG, Havard T, Escofet X. Outcomes after laparoscopic anti-reflux surgery related to obesity: a systematic review and meta-analysis. Int J Surg2018;51:76-82.
19. Anwar S, Somasekar K, Chan DSY, Sreekumar N. Choledocholithiasis after bariatric surgery – more than a stone’s throw to reach? J Gastrointest Surg2018;22:529-537.
20. Powell A, Parkinson D, Patel N, Chan DSY, Christian A, Lewis WG. Prognostic significance of serum inflammatory markers in gastric cancer. J Gastrointest Surg2018;22:595-605.
21. Blake PA, Karran AL, Chan DSY, White C, Lewis WG. Prognostic significance of deprivation in upper gastrointestinal cancer. Gastrointest Cancer Res Thera2017;2:1018.
22. Chan DSY, Foliaki A, Lewis WG, Clark GWB, Blackshaw G. Systematic review and meta-analysis of surgical treatment of non-Zenker’s oesophageal diverticula. J Gastrointest Surg2017;21:1067-75.
23. Karran A, Wheat J, Chan D, Blake P, Barlow R, Lewis WG. Propensity score analysis of an enhanced recovery programme in upper gastrointestinal cancer surgery. World J Surg2016;40:1645-1654.
24. Chan DSY, Delicata RJ. Systematic review and meta-analysis of antegrade continence enema in adults with faecal incontinence and constipation. Br J Surg2016;103:322-327.
25. Chan DSY, Baker AL. Minimally invasive oesophagectomy in Wales. Surgeon2016;14:196-201.
26. Beamish AJ, Chan DSY, Blake PA, Karran A, Lewis WG. Systematic review and meta-analysis of enhanced recovery programmes in gastric cancer surgery. Int J Surg2015;19:46-54.
27. Chan DSY, Jain P, Khalifa A, Hughes R, Baker AL. Laparoscopic common bile duct exploration. Br J Surg2014;101:1448-1452.
28. Foley KG, Fielding P, Lewis WG, Karran A, Chan D, Blake P, Roberts SA. Prognostic significance of novel 18-FDG PET/CT defined tumour variables in patients with oesophageal cancer. Eur J Radiol2014;83:1069-73.
29. Foley KG, Fielding P, Lewis WG, Karran A, Chan D, Blake P, Roberts SA. N-staging for oesophageal carcinoma: is there still a role for EUS in patients staged N0 on PET/CT? Clin Rad2014;69:959-64.
30. Karran A, Blake P, Chan D, Reid TD, Davies IL, Kelly M, Roberts SA, Crosby T, Lewis WG. Propensity score analysis of oesophageal cancer treatment with surgery or definitive chemoradiotherapy. Br J Surg2014;101:502-10.
31. Chan DSY, Okosieme OE. Recent trends in thyroid surgery in Wales. Surgeon2014;12:195-200.
32. Chan DSY, Reid TD, White C, Willicombe A, Blackshaw G, Clark GW, Havard T, Escofet X, Crosby TD, Roberts SA, Lewis WG. Influence of a regional centralised upper gastrointestinal cancer service model on patient safety, quality of care and survival. Clin Oncol2013;25:719-25.
33. Chan DSY, Shah PR, Soanes M, Saklani AP. Current trends and controversies in the management of patients with splenic flexure tumours. J Canc Res Therapy2013;1:8-10.
34. Chan DSY, Reid TD, Howell I, Lewis WG. Systematic review and meta-analysis of the influence of circumferential margin involvement on outcomes in patients with operable oesophageal cancer. Br J Surg2013;100:456-64.
35. Chan DSY, Fielding P, Roberts SA, Reid TD, Ellis-Owen R, Lewis WG. Prognostic significance of 18-FDG PET/CT and EUS defined tumour characteristics in patients with oesophageal cancer. Clin Rad2013;68:352-357.
36. Reid TD, Chan DSY, Roberts SA, Crosby TDL, Williams GT, Lewis WG. Prognostic significance of circumferential resection margin involvement following oesophagectomy for cancer and the predictive role of endoluminal ultrasonography. Br J Canc2012;107:1925-31.
37. Chan DSY, Willicombe A, Reid TD, Beaton C, Arnold D, Ward J, Davies IL, Lewis WG. Relative quality of internet derived gastrointestinal cancer information. J Canc Edu2012;27:676-9.
38. Chan DSY, Twine CP, Lewis WG. Systematic review and meta-analysis of the influence of HER2 expression and amplification in operable oesophageal cancer. J Gastrointest Surg2012;16:1821-1829.
39. Chan DSY, Campbell F, Edwards P, Jasani B, Williams GT, Lewis WG. Relative prognostic value of Human Epidermal Growth Factor 2 (HER2) receptor expression in operable oesophagogastric cancer. ISRN Surgery2012;2012:804891.
40. Davies IL, Mason J, Roberts SA, Chan D, Reid TD, Robinson M, Gwynne S, Crosby TD, Lewis WG. Prognostic significance of total length of disease in esophageal cancer. Surg Endosc2012;26:2810-2816.
41. Chan DSY, Saklani AP, Shah PR, Lewis M, Haray PN. Rectal irrigation: a useful tool in the armamentarium of functional bowel disorders. Colorectal Dis2012;14:748-752.
42. Reid TD, Sanyalou L, Chan D, Williams GT, Lewis WG. Relative prognostic value of TNM7 vs. TNM6 in staging oesophageal cancer. Br J Cancer2011;105:842-846.
43. Naughton J, Morley E, Chan D, Fong Y, Bosanquet D, Lewis M. Carotid body tumours: a review. Br J Hosp Med2011;72:559-564.
44. Chan DSY, Johnson RC, Shering SG. Management of breast cancer in older women: factors which influence patients’ decision. The Open Breast Cancer Journal2010;2:42-45.
45. Okosieme OE, Chan D, Price SA, Lazarus JH, Premawardhana LD. The utility of radioiodine uptake and thyroid scintigraphy in the diagnosis and management of hyperthyroidism. Clin Endocrinol (Oxf)2010;72:122-7.
46. Twine CP, Roberts SA, Lewis WG, Dave BV, Rawlinson CE, Chan D, Robinson M, Crosby TD. Prognostic significance of endoluminal ultrasound-defined disease length and tumor volume (EDTV) for patients with the diagnosis of esophageal cancer. Surg Endosc2010;24:870-878.
47. Twine CP, Lewis WG, Morgan MA, Chan D, Clark GWB, Havard T, Crosby TD, Roberts SA, Williams GT. The assessment of prognosis of surgically resected oesophageal cancer is dependent on the number of lymph nodes examined pathologically. Histopathology2009;55:46-52.
48. Morgan MA, Lewis WG, Chan DSY, Burrows S, Stephens MR, Roberts SA, Havard TJ, Clark GW, Crosby TD. Influence of socio-economic deprivation on outcomes for patients diagnosed with oesophageal cancer. Scand J Gastro2007;42:1230-7.
49. Ather S, Chan DS, Harding KG. Biology of wound healing. Eur J Hosp Pharm2007;13:53-54.
Case reports
50. Chan DSY, Saklani A, Shah PR, Haray PN. Laparoscopic drainage of retroperitoneal abscess secondary to pyogenic sacroiliitis. Ann R Coll Surg Engl2010;92:32-34.
51. Ather S, Chan DSY, Leaper DJ, Harding KG. Case report and literature review of Leishmaniasis as a cause of leg ulceration in the United Kingdom. J Wound Care2006;15:389-391.
52. Ather S, Chan DSY, Leaper DJ, Harding KG. Surgical treatment of hidradenitis suppurativa: case series and review of the literature. Int Wound J2006;3:159-169.
Letters
53. Beamish AJ, Chan DSY. Emergency Laparotomy: time to assess risk, but not according to time. Br J Anaesth2013;110:140.
54. Chan D. Publish or perish. Ann R Coll Surg Engl (Suppl)2012;94:358.
55. Chan DSY, Saklani A. Circumferential resection margin as a prognostic factor in rectal cancer (Br J Surg 2009; 96: 1348-1357). Br J Surg2010;97:299.
56. Chan D. Cutting the real dead wood. BMJ 2009;338(Suppl 7707):8.
57. Chan D. Staff policy undermines care. BMJ2009;338(Suppl 7705):12.
58. Chai A, Chan DSY, Malik S. Inadequate education. Br Dent J2007;202:509.
Personal viewpoints
59. Chan DSY, Chan ASZ. Whither the recognition? studentBMJ2006;14;438.
60. Chan DSY. A grandson’s perspective. studentBMJ2006;14:263.
Publications
Original articles
Total number 49
Senior author 12 (7 impact factor > 2)
1st author 15 (12 impact factor >2)
Citation indices
Citations 1262
h-index22
i10-index35
PUBLICATIONS
Original Articles
1. Walmsley J, Ariyarathenam A, Berrisford R, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Esophagectomy or total gastrectomy for the management of Siewert II gastro-esophageal junction cancer. A systematic review and meta-analysis. J Gastrointest Surg2023 Apr 3 epub.
2. Abdelrahim G, MacCormick A, Jenkins P, Ghauri S, Gafoor N, Chan D. Transhepatic versus transperitoneal approach in percutaneous cholecystostomy: a meta-analysis. Clin Rad2023;78:459-465.
3. Jenkins P, MacCormick A, Zhong J, Makris GC, Gafoor N, Chan D. Transhepatic or transperitoneal technique for cholecystostomy: Results of the Multicentre Retrospective Audit of Cholecystostomy and Further interventions (MACAFI). Br J Radiol2023 Jan 27 epub.
4. MacCormick A, MacCormick A, Zhong J, Makris GC, Gafoor N, Chan D. Nationwide Outcomes Following Percutaneous Cholecystostomy for Acute Calculous Cholecystitis and the Impact of COVID-19: Results of the Multicentre Audit of Cholecystostomy and Further interventions (MACAFI). J Vasc Int Radiol2023;34:260-276.
5. Abdelrahman M, Ariyarathenam A, Berrisford R, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Systematic review and meta-analysis of the influence of prophylactic pyloric balloon dilatation in the prevention of early delayed gastric emptying after esophagectomy. Dis Eso2022;35:1-7.
6. Joshi A, Borraez-Segura B, Vargas L, Herbella FAM, Chan D, Answer M et al. Impact of COVID-19 on Surgical Education (COVIDSurEd): A Global Overview Across Six Continents. J Social Innovations2022;14:1-22.
7. Dutt K, Paice C, Caleshu C, Ariyarathenam A, Humphreys ML, Chan DSY. Short-term outcomes after bariatric surgery during the COVID-19 pandemic. World J Lap Surg2022;15:26-30.
8. Jones R, MacCormick A, Ariyarathenam A, Humphreys ML, Sanders G, Wheatley T, Chan DSY. Urgent elective laparoscopic cholecystectomy during the COVID-19 pandemic. World J Lap Surg2022;15:87-89.
9. MacCormick A, Jenkins P, Gafoor N, Chan D. Percutaneous transcystic removal of gallbladder and common bile duct stones: a narrative review. Acta Radiol2022;63:571-576.
10. Sheath C, Abdelrahman M, MacCormick A, Chan D. Paediatric appendicitis during the COVID-19 pandemic. J Paediatr Child Health2021;57:986-989.
11. Chan DSY, MacCormick A, Rashid B, Ariyarathenam A, Humphreys L, Sanders G, Wheatley T, Berrisford R. Short-term outcomes after Ivor-Lewis oesophagectomy during the COVID-19 pandemic. Ann R Coll Surg Engl2021;103:134-137.
12. Powell AG, Wheat J, Patel N, Chan DSY, Foliaki A, Roberts SA, Lewis WG. Value of individual surgeon performance metrics as quality assurance measures in oesophagogastric cancer surgery. BJS Open2020;4:91-100.
13. Barlow RC, Chan DSY, Mayor S, Perkins C, Lawton HL, Powell AG, Lewis WG. Fit for cancer treatment: a prospective feasibility study of primary care initiated prehabilitation for patients with suspected cancer. BJGP Open2018;2(4)
14. Vercoe H, Mulla M, Lewis WG, Foliaki A, Chan DSY. Systematic review and meta-analysis on the treatment of diffuse esophageal spasm. Eur Surg2019;51:239-245.
15. Patel N, Foley KG, Powell AG, Wheat JR, Chan D, Fielding P, Roberts SA, Lewis WG. Propensity score analysis of 18-FDG PET/CT enhanced staging in patients undergoing surgery for esophageal cancer. Eur J Nucl Med Mol Imaging2019;46:801-809.
16. Pandey G, Mulla M, Lewis WG, Foliaki A, Chan DSY. Systematic review and meta-analysis of Radiofrequency Ablation effectiveness in low-grade dysplastic Barrett’s Esophagus. Endoscopy2018;50:953-960.
17. Brown J, Lewis WG, Foliaki A, Clark GWB, Blackshaw G, Chan DSY. Colonic Interposition after adult oesophagectomy: systematic review and meta-analysis of conduit choice and outcome. J Gastrointest Surg2018;22:1104-1111.
18. Abdelrahman T, Latif A, Chan DSY, Farag M, Lewis WG, Havard T, Escofet X. Outcomes after laparoscopic anti-reflux surgery related to obesity: a systematic review and meta-analysis. Int J Surg2018;51:76-82.
19. Anwar S, Somasekar K, Chan DSY, Sreekumar N. Choledocholithiasis after bariatric surgery – more than a stone’s throw to reach? J Gastrointest Surg2018;22:529-537.
20. Powell A, Parkinson D, Patel N, Chan DSY, Christian A, Lewis WG. Prognostic significance of serum inflammatory markers in gastric cancer. J Gastrointest Surg2018;22:595-605.
21. Blake PA, Karran AL, Chan DSY, White C, Lewis WG. Prognostic significance of deprivation in upper gastrointestinal cancer. Gastrointest Cancer Res Thera2017;2:1018.
22. Chan DSY, Foliaki A, Lewis WG, Clark GWB, Blackshaw G. Systematic review and meta-analysis of surgical treatment of non-Zenker’s oesophageal diverticula. J Gastrointest Surg2017;21:1067-75.
23. Karran A, Wheat J, Chan D, Blake P, Barlow R, Lewis WG. Propensity score analysis of an enhanced recovery programme in upper gastrointestinal cancer surgery. World J Surg2016;40:1645-1654.
24. Chan DSY, Delicata RJ. Systematic review and meta-analysis of antegrade continence enema in adults with faecal incontinence and constipation. Br J Surg2016;103:322-327.
25. Chan DSY, Baker AL. Minimally invasive oesophagectomy in Wales. Surgeon2016;14:196-201.
26. Beamish AJ, Chan DSY, Blake PA, Karran A, Lewis WG. Systematic review and meta-analysis of enhanced recovery programmes in gastric cancer surgery. Int J Surg2015;19:46-54.
27. Chan DSY, Jain P, Khalifa A, Hughes R, Baker AL. Laparoscopic common bile duct exploration. Br J Surg2014;101:1448-1452.
28. Foley KG, Fielding P, Lewis WG, Karran A, Chan D, Blake P, Roberts SA. Prognostic significance of novel 18-FDG PET/CT defined tumour variables in patients with oesophageal cancer. Eur J Radiol2014;83:1069-73.
29. Foley KG, Fielding P, Lewis WG, Karran A, Chan D, Blake P, Roberts SA. N-staging for oesophageal carcinoma: is there still a role for EUS in patients staged N0 on PET/CT? Clin Rad2014;69:959-64.
30. Karran A, Blake P, Chan D, Reid TD, Davies IL, Kelly M, Roberts SA, Crosby T, Lewis WG. Propensity score analysis of oesophageal cancer treatment with surgery or definitive chemoradiotherapy. Br J Surg2014;101:502-10.
31. Chan DSY, Okosieme OE. Recent trends in thyroid surgery in Wales. Surgeon2014;12:195-200.
32. Chan DSY, Reid TD, White C, Willicombe A, Blackshaw G, Clark GW, Havard T, Escofet X, Crosby TD, Roberts SA, Lewis WG. Influence of a regional centralised upper gastrointestinal cancer service model on patient safety, quality of care and survival. Clin Oncol2013;25:719-25.
33. Chan DSY, Shah PR, Soanes M, Saklani AP. Current trends and controversies in the management of patients with splenic flexure tumours. J Canc Res Therapy2013;1:8-10.
34. Chan DSY, Reid TD, Howell I, Lewis WG. Systematic review and meta-analysis of the influence of circumferential margin involvement on outcomes in patients with operable oesophageal cancer. Br J Surg2013;100:456-64.
35. Chan DSY, Fielding P, Roberts SA, Reid TD, Ellis-Owen R, Lewis WG. Prognostic significance of 18-FDG PET/CT and EUS defined tumour characteristics in patients with oesophageal cancer. Clin Rad2013;68:352-357.
36. Reid TD, Chan DSY, Roberts SA, Crosby TDL, Williams GT, Lewis WG. Prognostic significance of circumferential resection margin involvement following oesophagectomy for cancer and the predictive role of endoluminal ultrasonography. Br J Canc2012;107:1925-31.
37. Chan DSY, Willicombe A, Reid TD, Beaton C, Arnold D, Ward J, Davies IL, Lewis WG. Relative quality of internet derived gastrointestinal cancer information. J Canc Edu2012;27:676-9.
38. Chan DSY, Twine CP, Lewis WG. Systematic review and meta-analysis of the influence of HER2 expression and amplification in operable oesophageal cancer. J Gastrointest Surg2012;16:1821-1829.
39. Chan DSY, Campbell F, Edwards P, Jasani B, Williams GT, Lewis WG. Relative prognostic value of Human Epidermal Growth Factor 2 (HER2) receptor expression in operable oesophagogastric cancer. ISRN Surgery2012;2012:804891.
40. Davies IL, Mason J, Roberts SA, Chan D, Reid TD, Robinson M, Gwynne S, Crosby TD, Lewis WG. Prognostic significance of total length of disease in esophageal cancer. Surg Endosc2012;26:2810-2816.
41. Chan DSY, Saklani AP, Shah PR, Lewis M, Haray PN. Rectal irrigation: a useful tool in the armamentarium of functional bowel disorders. Colorectal Dis2012;14:748-752.
42. Reid TD, Sanyalou L, Chan D, Williams GT, Lewis WG. Relative prognostic value of TNM7 vs. TNM6 in staging oesophageal cancer. Br J Cancer2011;105:842-846.
43. Naughton J, Morley E, Chan D, Fong Y, Bosanquet D, Lewis M. Carotid body tumours: a review. Br J Hosp Med2011;72:559-564.
44. Chan DSY, Johnson RC, Shering SG. Management of breast cancer in older women: factors which influence patients’ decision. The Open Breast Cancer Journal2010;2:42-45.
45. Okosieme OE, Chan D, Price SA, Lazarus JH, Premawardhana LD. The utility of radioiodine uptake and thyroid scintigraphy in the diagnosis and management of hyperthyroidism. Clin Endocrinol (Oxf)2010;72:122-7.
46. Twine CP, Roberts SA, Lewis WG, Dave BV, Rawlinson CE, Chan D, Robinson M, Crosby TD. Prognostic significance of endoluminal ultrasound-defined disease length and tumor volume (EDTV) for patients with the diagnosis of esophageal cancer. Surg Endosc2010;24:870-878.
47. Twine CP, Lewis WG, Morgan MA, Chan D, Clark GWB, Havard T, Crosby TD, Roberts SA, Williams GT. The assessment of prognosis of surgically resected oesophageal cancer is dependent on the number of lymph nodes examined pathologically. Histopathology2009;55:46-52.
48. Morgan MA, Lewis WG, Chan DSY, Burrows S, Stephens MR, Roberts SA, Havard TJ, Clark GW, Crosby TD. Influence of socio-economic deprivation on outcomes for patients diagnosed with oesophageal cancer. Scand J Gastro2007;42:1230-7.
49. Ather S, Chan DS, Harding KG. Biology of wound healing. Eur J Hosp Pharm2007;13:53-54.
Case reports
50. Chan DSY, Saklani A, Shah PR, Haray PN. Laparoscopic drainage of retroperitoneal abscess secondary to pyogenic sacroiliitis. Ann R Coll Surg Engl2010;92:32-34.
51. Ather S, Chan DSY, Leaper DJ, Harding KG. Case report and literature review of Leishmaniasis as a cause of leg ulceration in the United Kingdom. J Wound Care2006;15:389-391.
52. Ather S, Chan DSY, Leaper DJ, Harding KG. Surgical treatment of hidradenitis suppurativa: case series and review of the literature. Int Wound J2006;3:159-169.
Letters
53. Beamish AJ, Chan DSY. Emergency Laparotomy: time to assess risk, but not according to time. Br J Anaesth2013;110:140.
54. Chan D. Publish or perish. Ann R Coll Surg Engl (Suppl)2012;94:358.
55. Chan DSY, Saklani A. Circumferential resection margin as a prognostic factor in rectal cancer (Br J Surg 2009; 96: 1348-1357). Br J Surg2010;97:299.
56. Chan D. Cutting the real dead wood. BMJ 2009;338(Suppl 7707):8.
57. Chan D. Staff policy undermines care. BMJ2009;338(Suppl 7705):12.
58. Chai A, Chan DSY, Malik S. Inadequate education. Br Dent J2007;202:509.
Personal viewpoints
59. Chan DSY, Chan ASZ. Whither the recognition? studentBMJ2006;14;438.
60. Chan DSY. A grandson’s perspective. studentBMJ2006;14:263.