Doctor by the Universitat de Barcelona in 1988, since 2007, Chief of the Gastrointestinal Surgery Service of the Hospital Clínic de Barcelona from 2007 to 2022. Currently Director of the IQL (Lacy Surgical Institute). Author of more than 300 scientific articles with an impact factor of 1014 (H index of 66), has participated in more than 25 research projects and has published more than 35 book chapters. Member of the editorial board of 3 first quartile journals and reviewer of the most prestigious publications in his field. His main contributions have been the first demonstration for the first time of the suitability of laparoscopic surgery in cancer, the implementation of the transanal approach in the treatment of rectal cancer and describing the basis of hormonal response in the resolution of type 2 diabetes after bariatric surgery. His teaching work includes the creation of the world's largest digital education portal in surgery in the world with free access to more than 1 million users in more than 100 countries. Through his fundraising and patronage work, he has accumulated contributions to the public system of more 25 million euros.
His main areas of interest are currently Transanal ColoRectal Endoscopic Surgery (TACRES) (TaTME, Transanal Proctectomy in IBD & Transanal Approach in Hartmann’s Reversal), the robotic approach to colorectal and esophageal pathologies and the use of the last technologies and new surgical innovations such as the use of indocyanine green in all its applications (vascular perfusion, lymphatic mapping, metastasis identification….), visualization in 3D and currently in 4k. Professor Lacy participates in several international working groups, such as the international registry of transanal TME. He has performed over 700 TaTME cases to date. He is also a member of international multidisciplinary working groups for bariatric surgery, type 2 diabetes, and Metabolic Syndrome. Also, he initiated the national program in Catalonia of Peritoneal Carcinomatosis with Cytoreductive Surgery (CRS) plus Chemotherapy and Hyperthermia (HIPEC).
Dr. Lacy is the founder of Advances in Surgery (AIS), a global surgical and medical knowledge-transferring, data-driven ecosystem, comprising a set of digital correlative platforms, with the purpose of facilitating access to high-quality content created by the world's best specialists. Its goal is to accelerate the training/learning curve so as to close the gap between innovation and adoption, through the use of behavioral analysis, artificial intelligence, active listening, and adaptive learning management systems.
Finally, among the distinctions he has received are Honorary Fellowships from the American College of Surgeons and the American Society of Surgeons and the American Society of Colon and Rectal Surgeons, International Ambassador of the Society of American Gastrointestinal and Endoscopic Surgeons, as well as the Ramon Llull Award, the Josep Trueta Medal for the Generalitat de Catalunya or the Lino Torre Award for Surgical Research Award. He has received the Rei Jaume I Award for Medical Research 2022.
Selected publications from PubMed
Transanal total mesorectal excision versus laparoscopic total mesorectal excision for mid and low rectal cancer (COLOR III): short-term outcomes of an international, multicentre, phase 3, randomised, controlled, non-inferiority trial.
Tuynman JB, Yao H, Moolenaar LR, Sietses C, Hompes R, Aigner F, Caycedo-Marulanda A, Chen CC, Deeb M, Doornebosch PG, Feng B, Foo CC, Fürst A, Ito M, de Lacy FB, Leão P, Maykel JA, Muratore A, van Oostendorp SE, Park SC, Pędziwiatr M, Ren M, Seitinger G, Stockmann HBAC, Talsma AK, Türler A, Tong W, Wang Q, Xu Q, Zhang H, van Waesberghe JTM, Ali M, Twisk JWR, Zhang Z, de Lacy AM, Hanna GB, Bonjer HJ, COLOR III Study Group
Lancet Gastroenterol Hepatol. 2026 May;11(5):355-366 doi: 10.1016/S2468-1253(26)00022-1.
Effect of the composite quality resection score for rectal cancer on oncological outcomes in a multicentre cohort study (CRONOS).
Guzmán Y, Paredes J, González-Atienza P, Maurel J, Fernández-López F, Prada B, Pascual M, Guerrero MA, García-Granero Á, Fernández L, Ochogavia-Seguí A, Gamundi-Cuesta M, González-Argente FX, Centeno A, Sobrerroca-Porras L, Castellvi-Valls J, Gil-Gómez E, Gómez-Pérez B, Gil-Martínez J, Lacy AM, Ríos J, de Lacy FB
Colorectal Dis. 2025 Nov;27(11):e70291 doi: 10.1111/codi.70291.
Mechanical and Oral Antibiotic Bowel Preparation in Elective Rectal Resection.
Lacy AM, de Lacy FB
JAMA Surg. 2024 Jun 1;159(6):615 doi: 10.1001/jamasurg.2024.0174.
Time Interval Between the End of Neoadjuvant Therapy and Elective Resection of Locally Advanced Rectal Cancer in the CRONOS Study.
Guzmán Y, Ríos J, Paredes J, Domínguez P, Maurel J, González-Abós C, Otero-Piñeiro A, Almenara R, Ladra M, Prada B, Pascual M, Guerrero MA, García-Granero Á, Fernández L, Ochogavia-Seguí A, Gamundi-Cuesta M, González-Argente FX, Pons LV, Centeno A, Arrayás Á, de Miguel A, Gil-Gómez E, Gómez B, Martínez JG, Lacy AM, de Lacy FB
JAMA Surg. 2023 Sep 1;158(9):910-919 doi: 10.1001/jamasurg.2023.2521.
Reply.
Manchon-Walsh P, de Lacy FB, Pera M, Espin-Basany E, Targarona EM, Biondo S, Aliste Sanchez L, Pallarès N, Tebé C, Pata F, Lacy AM, Guarga A, Borràs JM
Dis Colon Rectum. 2022 Dec 1;65(12):e1080-e1081 doi: 10.1097/DCR.0000000000002603.
This Masterclass delves into the compelling reasons why robotic assistance is not just an option, but a transformative force reshaping the landscape of modern surgery. Beyond incremental improvements, we explore the paradigm shift that robotic technology brings, highlighting its superior outcomes, enhanced efficiency, and the critical role of accessible, modular systems in making these advantages universal. Topics addressed:
With Rob Surgical
Published
Nov 2025
In this session, Dr. Antonio M. de Lacy remotely guided Dr. José M. Balibrea through a complex gastric bypass surgery on a 27-year-old patient with a BMI of 36. Using the 4RemoteHealth platform by Zerintia Healthtech, Dr. de Lacy provided real-time guidance from his office, communicating seamlessly with the surgical team in the operating room led by Dr. Balibrea. Even while attending a separate meeting, Dr. de Lacy remained fully connected to the procedure, using the platform to offer timely feedback through his mobile device. This session highlights the revolutionary potential of remote surgical mentoring, made possible by the AIS Telesurgeon and Zerintia Healthtech. The platform enables specialists to guide live surgeries from anywhere in the world, offering high-quality audiovisual communication, enhancing surgical precision, and improving patient outcomes. This is the way for improving surgical education and collaboration, expanding access to expert mentorship and fostering a new era of connected surgery. PROGRAM: 4RemoteHealth Platform Demonstration - Complex Gastric Bypass surgery - Dr. José M. Balibrea (Spain) and Dr. Antonio M. de Lacy (Spain)
With Zerintia HealthTech
Published
Sep 2024
Anastomotic leaks are among the most devastating complications in all forms of gastrointestinal surgery. The rates and adverse sequelae of anastomotic leaks are most common and potentially of the greatest detrimental impact at the two ends of the intestinal tract - the esophagus and the rectum. This program is the first one in a four-part series delving into every facet of anastomotic leaks in colorectal surgery practice. Bringing together 5 globally renowned experts, it addresses the incidence, financial, functional, and oncological costs of leaks. Dr. Antonio M. de Lacy, the founder of the AIS Channel, will demonstrate laparoscopic leak management. The program will conclude with a lively globally interactive panel discussion. Designed for every surgeon and surgical trainee involved in colorectal anastomosis, this program offers invaluable insights.
With Medtronic
Published
Apr 2024
Published
Nov 2022
Dr. Antonio M. de Lacy (Spain) and his team at the Hospital Clinic of Barcelona (Spain) will perform a totally robotic Roux-en-Y gastric bypass with the Da Vinci Xi platform and answer all your questions.
With ConMed
Published
Sep 2022
Dr. Antonio M. de Lacy (Spain) and his team at the Hospital Clinic of Barcelona will perform a Robotically assisted Ivor-Lewis esophagectomy and answer all your questions.
With ConMed
Published
Sep 2022
Help your network discover Dr. Antonio M. Lacy's clinical expertise.
