Abstract：
OBJECTIVE: this study was undertaken to evaluate the efficacy of multilayer polyurethane foam with silicone (MPF) compared to transparent polyurethane film (TPF) dressings in the control of heel skin microclimate (temperature and moisture) of hospitalized patients undergoing elective surgeries.
METHODS: the study took of a secondary analysis of a randomized self-controlled trial, involving patients undergoing elective surgical procedure of cardiac and gastrointestinal specialties in a university hospital in southern Brazil, from March 2019 to February 2020. Patients served as their own control, with their heels randomly allocated to either TPF (control) or MPF (intervention). Skin temperature was measured using a digital infrared thermometer; and moisture determined through capacitance, at the beginning and end of surgery. The study was registered in the Brazilian Registry of Clinical Trials: RBR-5GKNG5.
RESULTS: significant difference in the microclimate variables were observed when the groups (intervention and control) and the timepoint of measurement (beginning and end of surgery) were compared. When assessing temperature, an increase (+3.3 °C) was observed with TPF and a decrease (-7.4 °C) was recorded with MPF. Regarding skin moisture, an increase in moisture (+14.6 AU) was recorded with TPF and a slight decrease (-0.3 AU) with MPF.
CONCLUSIONS: The findings of this study suggest that MPF is more effective than TPF in controlling skin microclimate (temperature and moisture) in heels skin of hospitalized patients undergoing elective surgeries. However, this control should be better investigated in other studies.
METHODS: the study took of a secondary analysis of a randomized self-controlled trial, involving patients undergoing elective surgical procedure of cardiac and gastrointestinal specialties in a university hospital in southern Brazil, from March 2019 to February 2020. Patients served as their own control, with their heels randomly allocated to either TPF (control) or MPF (intervention). Skin temperature was measured using a digital infrared thermometer; and moisture determined through capacitance, at the beginning and end of surgery. The study was registered in the Brazilian Registry of Clinical Trials: RBR-5GKNG5.
RESULTS: significant difference in the microclimate variables were observed when the groups (intervention and control) and the timepoint of measurement (beginning and end of surgery) were compared. When assessing temperature, an increase (+3.3 °C) was observed with TPF and a decrease (-7.4 °C) was recorded with MPF. Regarding skin moisture, an increase in moisture (+14.6 AU) was recorded with TPF and a slight decrease (-0.3 AU) with MPF.
CONCLUSIONS: The findings of this study suggest that MPF is more effective than TPF in controlling skin microclimate (temperature and moisture) in heels skin of hospitalized patients undergoing elective surgeries. However, this control should be better investigated in other studies.
摘要：
目的：本研究旨在评估多层聚氨酯泡沫与有机硅（MPF）相比，透明聚氨酯薄膜（TPF）敷料在控制住院患者的足跟皮肤微气候（温度和湿度）方面的有效性。
方法：本研究对一项随机对照试验进行了二次分析，涉及在巴西南部一所大学医院接受心脏和胃肠道专科择期手术的患者，从2019年3月到2020年2月。患者作为自己的控制，他们的脚跟随机分配给TPF（对照）或MPF（干预）。使用数字红外温度计测量皮肤温度；通过电容确定水分，在手术开始和结束时。该研究在巴西临床试验注册中心：RBR-5GKNG5。
结果：当比较组（干预和对照组）和测量时间点（手术开始和结束）时，观察到微气候变量的显着差异。评估温度时，用TPF观察到升高(+3.3°C),用MPF记录到降低(-7.4°C)。关于皮肤水分，TPF记录到水分增加（14.6AU），MPF记录到轻度下降（-0.3AU）。
结论：这项研究的结果表明，MPF比TPF更有效地控制接受择期手术的住院患者脚跟皮肤的皮肤微气候（温度和湿度）。然而,这种控制应该在其他研究中进行更好的研究。
方法：本研究对一项随机对照试验进行了二次分析，涉及在巴西南部一所大学医院接受心脏和胃肠道专科择期手术的患者，从2019年3月到2020年2月。患者作为自己的控制，他们的脚跟随机分配给TPF（对照）或MPF（干预）。使用数字红外温度计测量皮肤温度；通过电容确定水分，在手术开始和结束时。该研究在巴西临床试验注册中心：RBR-5GKNG5。
结果：当比较组（干预和对照组）和测量时间点（手术开始和结束）时，观察到微气候变量的显着差异。评估温度时，用TPF观察到升高(+3.3°C),用MPF记录到降低(-7.4°C)。关于皮肤水分，TPF记录到水分增加（14.6AU），MPF记录到轻度下降（-0.3AU）。
结论：这项研究的结果表明，MPF比TPF更有效地控制接受择期手术的住院患者脚跟皮肤的皮肤微气候（温度和湿度）。然而,这种控制应该在其他研究中进行更好的研究。
