Karolinska University Hospital

This study tests whether adding ablation of scarred heart tissue to standard pulmonary vein isolation helps people with persistent atrial fibrillation stay free of irregular heartbeats. Two hundred participants will be randomly assigned to one of two ablation procedures. The main…

This study looks at whether teaching children with asthma special breathing exercises can improve their quality of life and help them be more active. About 40 kids aged 10-17 with asthma and poor breathing patterns will either get breathing training plus activity advice, or just …

This study looks at whether brothers, sisters, and children of people who have had an abdominal aortic aneurysm are more likely to develop one themselves. Researchers will analyze health records from nearly one million people in Sweden. The goal is to better understand how family…

This study is collecting data from 400 people with abdominal aortic aneurysms to improve how doctors predict aneurysm growth. The goal is to create more personalized monitoring plans. Participants will have regular check-ups and imaging tests to track changes over time.

Many patients sleep poorly in the hospital. This study tests whether training nurses and assistant nurses on sleep guidelines and providing a web-based sleep course can improve patient sleep. Researchers will interview staff, survey patients, and compare results between trained a…