Numerical simulation for treatment of hypothermia based on vascular interventional direct heating system

The treatment of hypothermia suffered by naval fighters owing to seawater immersion has been a focus of research in recent years. Currently, the treatment of hypothermia in China is limited to external rewarming, which is of low efficiency and is not effective for patients suffering moderate to seve...

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Bibliographic Details
Published in:Journal of thermal biology 2018-08, Vol.76, p.29-37
Main Authors: Hou, Yi, Qiao, Yuanyuan, Zhang, Dajin, Shi, Chenghe, Liu, Jing, He, Zhizhu, Rao, Wei
Format: Article
Language:English
Subjects:
Blood
Blood flow
Clinical trials
Compartment model
Heating
Hypothermia
Mathematical models
Patients
Seawater immersion
Simulation
Vascular intervention, whole body heating
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Summary:The treatment of hypothermia suffered by naval fighters owing to seawater immersion has been a focus of research in recent years. Currently, the treatment of hypothermia in China is limited to external rewarming, which is of low efficiency and is not effective for patients suffering moderate to severe hypothermia. We thus proposed a vascular interventional heating method which directly heats the blood flow via a minimally invasive heating needle for rewarming. And a numerical simulation using a compartment model based on finite difference method was conducted. A set of whole body heating treatment simulation was also developed. Appropriate treatment parameters and procedures can be set and adjusted based on patient physical parameters. Here temperature response curves of different heating modes were obtained and analyzed. It was demonstrated that the desired thermal response can be achieved by adjusting the heating power and heating time, ensuring controllable accuracy in the treatment of patients with severe hypothermia. The proposed treatment for hypothermia is a new and effective alternative, and further progress is expected in clinical trials. •A vascular interventional whole body heating device was proposed for the treatment of hypothermia for the first time.•Numerical simulation using a compartment model based on finite difference method was proposed.•Temperature response curves of various heating modes were obtained and analyzed for clinic guidance.•The desired thermal response can be achieved by adjusting the heating power and heating time easily.
ISSN:0306-4565
1879-0992
DOI:10.1016/j.jtherbio.2018.06.009