Why the study?
Does the proposed thermal energy transfer evaluation model prevent intradialytic hypotension in hemodialysis patients?
Does the proposed thermal energy transfer evaluation model prevent intradialytic hypotension in hemodialysis patients?
A novel thermal energy transfer model is proposed to maintain constant core temperature during hemodialysis, potentially preventing intradialytic hypotension.
Proposed thermal model for hemodialysis is hypothesis-generating; leaves open whether constant core temperature reduces intradialytic hypotension.
Hemodialysis treatment is biased by complications during its operative phases. One of these potential accidents consists in intradialytic hypotension, that causes discomfort to the patient and may even increase the risk of death. Therefore, it is very important to predict these events in routine clinical procedures. A cause of hypotension may be thermal energy/heat exchanges between extracorporeal system and the surrounding environment. A model to evaluate these heat losses is proposed and improved in order to maintain constant patient blood temperature. A convenient procedure is defined to improve and optimize clinical treatment. Although most hemodialysis machines automatically control the dialysate solution temperature starting from peripheral body temperature measurements, the proposed method is based on the control of the pre-dialysis core temperature of the patient, and the temperature of the blood entering the artery from the extracorporeal circuit after the treatment in the dialyzer. Measurements of arterial and venous blood temperatures are obtained in a non invasive way by a suitable estimate of the thermal energy exchanges between the blood and the environment during the extracorporeal recirculation. The suggested model guarantees a constant core temperature of the patient, improving prevention from intradialytic hypotension.
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Capua et al. (2014) studied Hemodialysis-induced intradialytic hypotension. Model to evaluate thermal energy exchanges and control pre-dialysis core temperature vs. Standard dialysate temperature control based on peripheral body temperature was evaluated on Constant core temperature of the patient and prevention of intradialytic hypotension.
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