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Professor Sten Lennquist passed away on the 10th of November 2023 at the age of 86. He was active in research and teaching until the very end. Sten lived by a motto given by his mother when he was young: “The most important things in life, and what gives you the most satisfaction, are the not the things you get and take, but the things you give and do.”

He had an honest passion for teaching and sharing his wisdom and ideas. He was given numerous honorary positions from the societies that he was involved in. His passing leaves a great emptiness and sadness for us who had the privilege to work close to him.

Sten was the initiator of the development of the MACSIM system together with his daughter PhD Kristina Lennquist Montan. Sten lived an extraordinary professional and private life filled with exiting adventures of which MACSIM and the MRMI courses were important parts. We are forever grateful. What he gave to and did for this world shall never be forgotten.

The MRMI-course
Medical Response to Major Incidents & Disasters

The MRMI-course is a standardized course under protected name with the aim to teach and train the response to major incidents and disasters. The international MRMI-courses are based on a standardized organization and methodology according to the principles most commonly used in the European countries and the language is English. In the national MRMI-courses, the same course-design and educational technique is used, but organization and methodology may in relevant parts be adapted to national standard, and the language may be native.


The course was developed 2009 by a group of international experts in the Section for Disaster & Military Surgery within ESTES (European Society for Trauma and Emergency Surgery). From 2009 - 2021 more than 7000 participants from 28 countries have been trained and 12 international MRMI-centers have been established. The accuracy of the educational methodology for major incident response has been scientifically validated in a published study including a large group of trainees from many different countries.


It is today owned the International MRMID-association, a non-profit organization with the aim to promote education and training of the response to major incidents and disasters. Permission to organize a course has to be requested from the organization and can only be given to certified MRMI- instructors. The MRMID association is responsible for development of methodology, quality assurance, coordination of instructor training and recruitment and certification of international instructors. Every course organizer is responsible for his/her own budget.

Aims and objectives

The course is interactive with all trainees active in their normal functions. The over-all aim of the course is to train decision-making on all levels, from levels of command and coordination to the level of management of individual patients. The whole chain of response is trained simultaneously (scene, transport, emergency room, surgery, intensive care, wards, psychosocial support, coordination & command). The reason for this is that a uniformly reported problem from recent major incidents and disasters is flaws in coordination and communication between units involved, and the most efficient way to cope with this is to train them all together.

Access to the course

The course is open for medical staff of all categories and also staff from collaborating agencies (rescue, police, military, administrative). Trainees in international courses must be well familiar with the English language. An application-form can be requested from every local course-organizer (address see under“ planned courses”).