News archive

A lorry explodes on the E4 motorway, there is a fire at the Hovet arena, someone takes hostages at Tom Titts, there's an explosion at Arlanda - it all happens at the same time and the medical services in Region Stockholm have to deal with a large number of injured patients at once. Fortunately, it was all just an exercise. The exercise, which is part of the TKS course, now aims to be developed into a national course concept.

On Thursday, 28 March, the Sune Bergström auditorium at Karolinska University Hospital was filled with Ukrainian paramedics, when the hospital, together with the Centre for Health Crises at Karolinska Institutet, arranged a visit dedicated to the exchange of experiences, discussions, and guided tours.

Young people who have had surgery for obesity do not improve their mental health despite significant and permanent weight loss. However, bariatric surgery increases the risk of early alcohol problems. This is according to the largest long-term study of young people who have undergone bariatric surgery, conducted at Lund University and Karolinska Institutet, among others.

We congratulate Professor Anna Martling, Research Group for Colorectal Surgery, Department of Molecular Medicine and Surgery, chief physician Tema Cancer, Karolinska University Hospital who has been named an Honorary Fellow of the American College of Surgeons.

Lisa Strömmer is the new expert coordinator, in emergency surgery, at the Centre for Health Crises. She looks forward to, among other things, develop existing courses and work to make sure that emergency surgery as a competence is maintained in crisis preparedness, health crises and as a part of the total defense (Totalförsvaret).

A major study published in JAMA led by researchers at Karolinska Institutet suggests that a possible cause of spontaneous brain haemorrhage could be transmitted via blood transfusion. At the same time, it is very unlikely that anyone should suffer a brain haemorrhage after receiving donated blood.

The third installment in the seminar series KI Contributes explored the health crises created by war and armed conflict, through the medium of visual art. An Armenian artist and a Swedish surgeon shared their experiences of war and how humans live through it and try to make sense of their difficult experiences.

Petra Peterson at the Reconstructive Plastic Surgery research group, Department of Molecular Medicine and Surgery, will defend her thesis "A multidisciplinary long-term evaluation of patients born with unilateral cleft lip and palate treated with different surgical protocols" on December 2, 2022.
Main Supervisor is Agneta Karsten, Dentmed.

Johannes Asplund at the research group Upper GI Surgery, the Department of Molecular Medicine and Surgery, will defend his thesis "Towards an improved survival in gastric cancer" on November 25th, 2022.
Main Supervisor is Jesper Lagergren.

Congratulations to Professor Jan Zedenius who has been elected President of the International Association of Endocrine Surgeons, IAES. IAES is an integrated society of the International Society of Surgery ISS/SIC and the inauguration ceremony was held at the International Surgical Week in Vienna on August 16, 2022.

We are delighted to announce that Olle Ljungqvist has been awarded the prestigious international ISS/SIC Prize 2022 from the Société Internationale de Chirurgie.

When others run away from bad things, Johan von Schreeb can be found dashing towards them. He has a wealth of experience in bringing order to chaotic situations – but as an administrator, he’s a complete disaster. Meet the professor who wants to control the health crises of the future.

Emil Pieniowski at the research group Colorectal Surgery, Department of Molecular Medicine and Surgery, will defend his thesis "Aspects of low anterior resection syndrome : prevalence, risk factors and treatment" on April 22, 2022. Main Supervisor is Mirna Abraham Nordling.

Researchers at Karolinska Institutet have studied long-term morbidity and mortality in individuals who have had different models of biological heart valves implanted. The results, which show that there are considerable differences in performance depending on model group, are published in the journal JAMA Network Open.

Riccardo Cristiani at the research group Sports Medicine, Department of Molecular Medicine and Surgery, will defend his thesis "Anterior cruciate ligament reconstruction : subjective knee function, graft failure and revision surgery" on December 17, 2021. Main Supervisor is Anders Stålman.

In countries with a severe shortage of surgeons it is common for some operations to be carried out by medical staff with lower formal qualifications. Researchers at Karolinska Institutet have led an international study on the safety and efficacy of a common surgical procedure. The study, published in JAMA Network Open, shows that inguinal hernia operations performed by associate clinicians at a hospital in Sierra Leone were just as safe and effective as those performed by doctors.

Researchers at Karolinska Institutet and Danderyd Hospital have studied the risk of additional myocardial infarctions and early death in severely obese patients who undergo metabolic surgery following a myocardial event. The registry study covering 1,018 individuals shows a lower risk of additional myocardial infarctions and improved survival that cannot be simply attributed to the loss of weight. The study is published in the journal Circulation.

Children born to women who underwent gastric bypass surgery before becoming pregnant had a lower risk of major birth defects than children born to women who had severe obesity at the start of their pregnancy. That’s according to a matched cohort study by researchers at Karolinska Institutet and Örebro University published in the scientific journal JAMA. The findings indicate that weight-loss and improved blood sugar control could reduce the risk of major birth defects.

Correction: The article “Reduction in Mental Health Treatment Utilization Among Transgender Individuals After Gender-Affirming Surgeries: A Total Population Study,” published in The American Journal of Psychiatry on Oct. 4, 2019, has been corrected following a review of the statistical methodology and some of its conclusions.

Young women with early stage ovarian cancer can undergo fertility-preserving surgery without affecting the safety of their cancer treatment, researchers from Karolinska Institutet in Sweden report in a national study published in the journal Gynecologic Oncology.

The standard treatment for aggressive skin cancer is to surgically remove the tumour. Researchers at Karolinska Institutet in Sweden now show that a 2 cm operational margin is sufficient, as opposed to the close to 4 cm margin previously applied by surgeons. For the study, which is published in The Lancet, the researchers monitored over 900 patients for an average span of 19 years after surgery.

Patients who have undergone surgical replacement of the heart’s aortic valve have a shorter life expectancy than the normal population, the loss in life expectancy being particularly marked in the young. This according to a registry study published in The Journal of the American College of Cardiology by researchers at Karolinska Institutet in Sweden.

Jenny Löfgren from the group Vascular Surgery, the Department of Molecular Medicine and Surgery, has together with researchers from Ghana, USA and Sweden, conducted a study on inguinal hernia surgery recently published in JAMA Surgery. The study shows no statistically significant differences in inguinal hernia surgery completed by medical doctors vs. surgeons.

Number-of-days-at-home within 30 days after surgery (DAH30) is a patient-centred outcome metrics that integrates length of hospital stay and any readmission or death within 30 days after a surgical procedure.

New study shows that patients with acute Achilles tendon rupture who undergo surgery within 48 hours experience a considerably better result with a smaller number of complications compared to patients who undergo surgery after 72 hours. Researchers at the group Orthopaedics, Department of Molecular Medicine and Surgery demonstrate this in a study recently published in The American Journal of Sports Medicine.