Blar i NTNU Open på forfatter "Leth-Olsen, Martin"
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Detection of Cerebral High-Intensity Transient Signals by NeoDoppler during Cardiac Catheterization and Cardiac Surgery in Infants
Leth-Olsen, Martin; Døhlen, Gaute; Torp, Hans; Nyrnes, Siri Ann (Peer reviewed; Journal article, 2022)There is a risk of gaseous and solid micro-embolus formation during transcatheter cardiac interventions and surgery in children with congenital heart disease (CHD). Our aim was to study the burden of high-intensity transient ... -
Femoral nailing associated with bone marrow emboli in pigs induced a specific increase in blood IL-6 and broad inflammatory responses in the heart and lungs
Kristiansen, Steinar; Storm, Benjamin Stage; Emblem, Åse; Grønli, Renathe Henriksen; Pettersen, Kristin; Hilmo, Jonas Larsen; Jarmund, Anders Hagen; Leth-Olsen, Martin; Nyrnes, Siri Ann; Nilsen, Bent Aksel; Nielsen, Erik Waage; Mollnes, Tom Eirik (Journal article; Peer reviewed, 2024)Introduction: Bone marrow embolization may complicate orthopedic surgery, potentially causing fat embolism syndrome. The inflammatory potential of bone marrow emboli is unclear. We aimed to investigate the inflammatory ... -
Femoral Nailing in a Porcine Model Causes Bone Marrow Emboli in the Lungs and Systemic Emboli in the Heart and Brain
Kristiansen, Steinar; Jarmund, Anders Hagen; Hilmo, Jonas Larsen; Mollnes, Tom Eirik; Leth-Olsen, Martin; Nyrnes, Siri Ann; Nilsen, Bent Aksel; Grønli, Renathe Henriksen; Faldaas, Bjørn Ove; Storm, Benjamin Stage; Espenes, Arild; Nielsen, Erik Waage (Journal article; Peer reviewed, 2024)Background: Shaft fractures of the femur are commonly treated with intramedullary nailing, which can release bone marrow emboli into the bloodstream. Emboli can travel to the lungs, impairing gas exchange and causing ... -
Instant Detection of Cerebral Blood Flow Changes in Infants with Congenital Heart Disease during Transcatheter Interventions
Leth-Olsen, Martin; Døhlen, Gaute; Torp, Hans; Nyrnes, Siri Ann (Journal article; Peer reviewed, 2024)Background: Transcatheter interventions are increasingly used in children with congenital heart disease. However, these interventions can affect cardiac output and cerebral circulation. In this pilot study, we aimed to ... -
Low frequency cerebral arterial and venous flow oscillations in healthy neonates measured by NeoDoppler
Ødegård, Siv Steinsmo; Torp, Hans; Follestad, Turid; Leth-Olsen, Martin; Støen, Ragnhild; Nyrnes, Siri Ann (Peer reviewed; Journal article, 2022)Background: A cerebroprotective effect of low frequency oscillations (LFO) in cerebral blood flow (CBF) has been suggested in adults, but its significance in neonates is not known. This observational study evaluates normal ... -
Perioperative Detection of Cerebral Fat Emboli From Bone Using High-Frequency Doppler Ultrasound
Jarmund, Anders Hagen; Kristiansen, Steinar; Leth-Olsen, Martin; Vogt, Ella Christina Stray; Nervik, Ingunn; Torp, Hans; Nielsen, Erik Waage; Nyrnes, Siri Ann (Peer reviewed; Journal article, 2024)