Dr. Sidney Klajner is a digestive system surgeon, coloproctologist, and president of the Hospital Israelita Albert Einstein. He holds a bachelor's and master's degree from the Universidade de São Paulo (USP), where he also did his residency, and is a fellow of the American College of Surgeons. He is the coordinator of the graduate course in Coloproctology and lectures on the Executive MBA in Health Management at the Instituto Israelita de Ensino e Pesquisa Albert Einstein, and is a member of the São Paulo Government’s Superior Council for Combating Infectious Diseases, which formulates strategies for coping with new epidemics and pandemics. Klajner is a member of the Brazilian Society of Bariatric and Metabolic Surgery (SBCBM), the Brazilian Society of Laparoscopic Surgery (SOBRACIL), the Brazilian Society of Coloproctology (SBCP), the Brazilian College of Digestive System Surgery, and the Brazilian College of Surgeons. He sat on the Advisory Board at the Fundação Faculdade de Medicina (FFM) from 2018 to 2022. He is the author of numerous works in digestive surgery published in international journals and the co-author of several books. He has also collaborated with publications related to management, such as the books "A Revolução Digital na Saúde" (The Digital Revolution in Healthcare - Editora dos Editores, 2019) and "Na linha frente: enfrentando o desconhecido” (On the front line: facing the unknown - Editora dos Editores, 2022). Dr. Klajner is a member and vice-president of the Deliberative Council at the Federação Israelita do Estado de São Paulo (FISESP), a member of the Advisory Board at the Confederação Israelita do Brasil (CONIB), and of the Board of Directors at the Instituto Coalizão Saúde. He was rated one of the most influential executives in healthcare in Brazil by journalists in the sector, according to Healthcare Management magazine, published by Grupo Mídia, between 2018 and 2022, consecutively. LinkedIn Top Voice Health 2020.
Selected publications from PubMed
Role of Simulation-Based Training in Minimally Invasive and Robotic Colorectal Surgery.
Araujo SEA, Perez RO, Klajner S
Clin Colon Rectal Surg. 2021 May;34(3):136-143 doi: 10.1055/s-0040-1718687.
Laparo-endoscopic Transanal Total Mesorectal Excision (TATME): evidence of a novel technique.
Araujo SE, Perez RO, Seid VE, Bertoncini AB, Klajner S
Minim Invasive Ther Allied Technol. 2016 Oct;25(5):278-87 doi: 10.1080/13645706.2016.1199435.
Robotic surgery for rectal cancer: current immediate clinical and oncological outcomes.
Araujo SE, Seid VE, Klajner S
World J Gastroenterol. 2014 Oct 21;20(39):14359-70 doi: 10.3748/wjg.v20.i39.14359.
Inequities in access to timely and effective surgical care represent one of the most pressing and complex challenges in global health today. Millions of people worldwide, particularly those living in rural and remote regions of Africa, Southeast Asia, and South America, are excluded from essential procedures that can treat severe trauma, prevent disability, and save lives. These barriers are multifaceted, rooted in insufficient training infrastructure, lack of specialized technology, geographic challenges, and funding deficiencies. Addressing this massive global surgical gap is not just a clinical requirement but a moral and ethical imperative for achieving true universal health equity.
With Johnson & Johnson MedTech
Published
Dec 2025
The finale 2024 monthly diversity, equity, and inclusion program features global healthcare leaders addressing this year's theme of patient-centric DEI initiatives. These internationally renowned experts from North and South America, Africa, and Asia describe programs which they have created to ensure access to equitable care for all patients. Their perspectives include University, Society, Hospital, Organizational, and Corporate initiatives which they have introduced and developed. The esteemed DEI champion faculty will outline how others in a myriad of environments can create and sustain similar programs. Participants from around the world will derive significant immediately implementable solutions which they can lead to help optimize outcomes for patients around the world.
With AORN
Published
Dec 2023
This program is the finale of the 2022 monthly series of diversity, equity, and inclusion sessions. This broadcast includes healthcare leaders from North and South America and Africa who will present their successful practical strategies for ensuring implementation and maintenance of organizational and institutional DEI integration. The experiences of these leaders from renowned health care organizations around the world will include a robust discussion of specifics which can be brought to every group. The wisdom of this esteemed faculty will be an information-packed episode with lively international interaction among the faculty and the worldwide audience.
With Cleveland Clinic
Published
Dec 2022
Help your network discover Dr. Sidney Klajner's clinical expertise.
