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Dr Gemma Ibáñez-Sanz is a licensed physician from the University of Barcelona with the specialization in Digestive medicine at the University Hospital of Bellvitge. During her training she participated in multicenter studies related to celiac disease and gastrointestinal bleeding, as well as other hospital studies. In 2015 she started a PhD thesis for which she conducted several research projects at the Unit of Biomarkers and Susceptibility, Catalan Institute of Oncology (ICO). The main focus of the research projects (COLSCREEN, GENRISK, etc) Dr Gemma Ibañez-Sanz is involved is trying to identify new biomarkers and strategies to improve early detection of colorectal cancer. Currently she is also working as a physician gastroenterologist at the University Hospital of Bellvitge and carrying out the research on the irritable bowel syndrome.


2017 – PhD, University of Barcelona (UB), Barcelona

2015 – Specialization in Gastroenterology, Bellvitge University Hospital, Barcelona

2004-2010– Doctor of Medicine (MD) degree awarded by the University of Barcelona (UB), Faculty of Medicine, Campus Bellvitge, Barcelona, Spain



2015 – current: Gastroenterologist at the Bellvitge University Hospital, Spain.

2013 – current:  Professor of Gastroenterology and General and Digestive Surgery at AMIR Academy

2011 – 2015: Gastroenterology specialization period (Internal Medical Resident) at Bellvitge University Hospital, Barcelona, Spain



Cambridge English: Proficiency (Certificate of proficiency in English – CPE) in 2009

Award: Third prize of the Spanish Journal of Gastroenterology (REED), October 2017,  for: “Endoscopic band ligation without resection in selected patients for small and superficial upper gastrointestinal tract lesions”

Award for the best poster presentation at the XX annual reunion of the Spanish Gastroenterology Association, March 2017. “Colorectal cancer and dyslipidemia: cause or confusion? A study with Mendelian randomization”.

Oral presentation at the XIX annual reunion of the Spanish Gastroenterology Association, March 2016. “Risk modeling for stratifying the risk of colorectal cancer in Spanish population using the common susceptible genètic loci.”

Poster presentation at the congress United European Gastroenterology in Barcelona, September 2015. “Endoscopic band ligation without resection in selected patients for small and superficial upper gastrointestinal tract lesions.”

Poster presentation (special recommendation by SEED) and oral presentation at the congress of the Spanish Society of Digestive Endoscopy (SEED), Zaragoza, November 2015. “False negatives in colorectal cancer screening by fecal occult blood test and colonoscopy as a diagnostic test.”



  • Risk Model for Colorectal Cancer in Spanish Population Using Environmental and Genetic Factors: Results from the MCC-Spain study. Ibáñez-Sanz G, Díez-Villanueva A, Alonso MH, Rodríguez-Moranta F, Pérez-Gómez B, Bustamante M, Martin V, Llorca J, Amiano P, Ardanaz E, Tardón A, Jiménez-Moleón JJ, Peiró R, Alguacil J, Navarro C, Guinó E, Binefa G, Navarro PF, Espinosa A, Dávila-Batista V, Molina AJ, Palazuelos C, Castaño-Vinyals G, Aragonés N, Kogevinas M, Pollán M, Moreno V. Sci Rep. 2017 Feb 24;7:43263. doi: 10.1038/srep43263.
  • Survival of patients with cirrhosis and acute peptic ulcer bleeding compared with variceal bleeding using current first-line therapies. Ardevol A, Ibáñez-Sanz G, Profitos J, Aracil C, Castellvi JM, Alvarado E, Cachero A, Horta D, Miñana J, Gomez-Pastrana B, Pavel O, Dueñas E, Casas M, Planella M, Castellote JJ, Villanueva C. Hepatology, 2017 July doi: 10.1002/hep.29370
  • False-negative rate cannot be reduced by lowering the haemoglobin concentration cut-off in colorectal cancer screening using faecal immunochemical test. Ibañez-Sanz G, Garcia M, Milà N, Rodríguez-Moranta F, Binefa G, Gómez-Matas J, Benito L, Padrol I, Barenys M, Moreno V. Eur J Cancer Prev. 2016 Jul 18. PMID: 27433880
  • Prescription drugs associated with false-positive results when using faecal immunochemical tests for colorectal cancer screening. Ibáñez-Sanz G, Garcia M, Rodríguez-Moranta F, Binefa G, Gómez-Matas J, Domènech X, Vidal C, Soriano A, Moreno V; ‘Adverse Effects on Colorectal Cancer Screening in Catalonia (EACC) Study’ Working Group. Dig Liver Dis. 2016 Oct;48(10):1249-54. doi: 10.1016/j.dld.2016.06.011. PMID: 27378703
  • Spontaneous intramural esophageal dissection: an unusual onset of eosinophilic esophagitis. Ibáñez-Sanz G, Rodríguez-Alonso L, Romero NM. Rev Esp Enferm Dig. 2016 Mar;108(3):156-7. PMID: 26949147


  1. Ibáñez, G, Cano, O, Solís, P et al. Manual AMIR Digestivo y Cirugía General. 6ª Edición. Editorial MARBAN S.L 2013. ISBN: 978-84-611-2176-2.
  2. Ibáñez, G, Cano, O, Cuño, JL et al. Manual AMIR Digestivo y Cirugía General. 7ª Edición. Editorial MARBAN S.L 2014. ISBN: 978-84-16218-03-5.
  3. Ibáñez, G, Ferre C, Cano O et al. Manual AMIR Digestivo y Cirugía General. 8ª Edición. Editorial MARBAN S.L.2015. ISBN: 978-84-16218-45-5.
  4. Ibáñez, G, Ferre C, Sevilla S et al. Manual AMIR Digestivo y Cirugía General. 9ª Edición. Editorial MARBAN S.L.2016. ISBN: 978-84-16856-01-5.