Blar i forfatter "Tronstad, Christian"

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    • Electrosurgery and temperature increase in tissue with a passive metal implant 

      Martinsen, Tormod; Pettersen, Fred-Johan; Kalvøy, Håvard; Tronstad, Christian; Kvarstein, Gunnvald; Bakken, André; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem; Grimnes, Sverre; Frich, Lars Inge (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-12)
      <i>Importance</i>: During monopolar electrosurgery in patients, current paths can be influenced by metal implants, which can cause unintentional tissue heating in proximity to implants. Guidelines concerning electrosurgery and active implants such as pacemakers or implantable cardioverter defibrillators have been published, but most describe interference between electrosurgery and the active implant ...

    • Evaluation of hypoglycaemia with non-invasive sensors in people with type 1 diabetes and impaired awareness of hypoglycaemia 

      Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre I.; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Frøslie, Kathrine Frey; Godang, Kristin; Kalvøy, Håvard; Martinsen, Ørjan Grøttem; Gulseth, Hanne Løvdal (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-03)
      People with type 1 diabetes and impaired awareness of hypoglycaemia (IAH) are prone to severe hypoglycaemia. Previous attempts to develop non-invasive hypoglycaemia alarm systems have shown promising results, but it is not known if such alarms can detect severe hypoglycaemia in people with IAH. We aimed to explore whether a combination of non-invasive sensors could reliably evaluate hypoglycaemia ...

    • A multiparameter model for non-invasive detection of hypoglycemia 

      Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre I.; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Gulseth, Hanne Løvdal; Kalvøy, Håvard; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-02)
      <i>Objective</i>: Severe hypoglycemia is the most serious acute complication for people with type 1 diabetes (T1D). Approximately 25% of people with T1D have impaired ability to recognize impending hypoglycemia, and nocturnal episodes are feared.<p> <p><i>Approach</i>: We have investigated the use of non-invasive sensors for detection of hypoglycemia based on a mathematical model which combines ...

    • Reduced heart rate variability is related to the number of metabolic syndrome components and manifest diabetes in the sixth Tromsø study 2007–2008 

      Azulay, Naomi; Bjørkholt Olsen, Roy; Nielsen, Christopher Sivert; Stubhaug, Audun; Jenssen, Trond Geir; Schirmer, Henrik; Frigessi, Arnoldo; Rosseland, Leiv Arne; Tronstad, Christian (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-14)
      Both diabetes mellitus (DM) and the metabolic syndrome (MetS) are associated with autonomic neuropathy, which predisposes to cardiac events and death. Measures of heart rate variability (HRV) can be used to monitor the activity of the autonomic nervous system (ANS), and there are strong indications that HRV can be used to study the progression of ANS-related diabetes complications. This study ...