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    Analysis of Pressure Ulcer Formation Risk of In Different Regions of Human Body
    (Mehmet Zeki SARIKAYA, 2018) Demircan, Fadime Öğülmüş; Toz, Metin; Yücedağ, İbrahim
    Pressure ulcer is defined as the injuries resulted in the areas that are exposed to pressure for a long time in bedridden patients. It is a major problem that threatens these kinds of patients. The major risk factors cause pressure ulcer formations are pressure, temperature, humidity, and wetness.Pressure ulcers can occur in different body regions according to these factors. Therefore,the features of the body region that exposed to the risk factors are also important for pressure ulcer formation since the weight, sweating coefficient, and temperature values of the different parts of the human body vary. The human body can be evaluated in six regions as head, trunk, arm, hand, leg, and feet. In this study, the pressure ulcer formation risks for different body regions were calculated according to varying pressure, skin temperature, and humidity values by an improved formulation. And the pressure ulcer risks changes for the six regions of the body are evaluated.
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    Mathematical Model Developed Using Heat Transfer Coefficient and Clothing Permeability Factor Parameters to Prevent Pressure Ulcer
    (Mehmet Zeki SARIKAYA, 2022) Demircan, Fadime Öğülmüş; Yücedağ, İbrahim; Toz, Metin
    Pressure ulcers are wounds that occur in bedridden patients as a result of staying in the same position for a long time, due to external causes such as pressure, friction, shearing and moisture. Pressure ulcer is a serious problem all over the world when evaluated in terms of hospital capacity, nurse employment and treatment costs. Prevention studies gain importance as the cost of pressure ulcer prevention is less than the cost of treatment. In this study, we improved a mathematical model obtained in one of our previous study in order to prevent pressure ulcers or delay wound formation. In addition to the previous model, the new model calculates the effect of hc (heat transfer coefficient) and Fpcl (clothing permeability factor) parameters on the risk of pressure ulcer formation through the body area value. The effects of these parameters on the formation of pressure ulcers are shown in graphics. The results obtained from the new model shown that the sensitivity in the determination of the risk of pressure ulcer formation has increased. Thus, early detection of wound formation was provided by calculating the risk of pressure ulcer formation.