Comparison of two pressure ulcer preventive dressings for reducing shear force on the heel
Comparison of two pressure ulcer preventive dressings for reducing shear force on the heel
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DOI：
10.1097/00152192-200605000-00007
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发表时间：
2006-05-01
影响因子：
2.6
通讯作者：
Tabata, Keiko
中科院分区：
文献类型：
--
作者：
Nakagami, Gojiro;Sanada, Hiromi;Tabata, Keiko
目的：我们在临床环境中比较了压疮预防敷料和薄膜敷料对足跟施加的剪切力。设计：准实验性临床试验。设置和对象：参与者为30名老年患者（5名男性，25名女性;平均年龄86.4 ± 8.0岁），在日本的老年病医院住院;所有患者的Braden评分均小于14（平均值10.1 ± 1.1）。知情同意，从所有patients.INSTRUMENTS：剪切力和压力传感器，包括一个应变片，和一个椭圆形的气囊型压力sensor.METHODS：传感器连接到一个脚跟使用双面胶带，然后在传感器和对侧脚跟的目标敷料应用，以避免对侧脚跟的剪切力测量的影响。在患者处于静止仰卧位的情况下测量界面压力;然后以0.2秒的间隔测量剪切力，同时以约5 cm/秒的速度手动拉动片材。剪切力通过对持续10个测量点的稳定剪切力求平均值来确定。结果：PPD和薄膜敷料的平均界面压力分别为70.7 +/- 16.5和70.2 +/- 15.2 mmHg;该差异无统计学意义。在拉伸片材期间产生的剪切力分别为2.2 +/- 1.4和11.7 +/-5.8N（P
OBJECTIVE: We compared the shear forces exerted over the heel between a pressure ulcer preventive dressing and a thin-film dressing in a clinical setting. Interface pressures were measured as well.DESIGN: Quasi-experimental clinical trial.SETTING AND SUBJECTS: Participants were 30 elderly patients (5 men, 25 women; mean age, 86.4 +/- 8.0 years) hospitalized in a geriatrics hospital in Japan; all had a Braden score of less than 14 (mean, 10.1 +/- 1.1). Informed consent was obtained from all the patients.INSTRUMENTS: A shear force and pressure sensor including a strain gauge, and an oval airbag-type pressure sensor were used.METHODS: The sensor was attached to one heel using double-sided tape; then the target dressing was applied over the sensor and on the opposite heel to avoid the influence of the opposite heel on the shear force measurement. Interface pressures were measured with the patient in a stationary supine position; shear force was then measured at 0.2-second intervals, while the sheet was manually pulled at a velocity of around 5 cm/second. Shear force was determined by averaging the stable shear force lasting for 10 measurement points.RESULTS: The mean interface pressures with the PPD and the film dressings were 70.7 +/- 16.5 and 70.2 +/- 15.2 mmHg, respectively; this difference was not statistically significant. The shear force produced during the pulling of the sheet was 2.2 +/- 1.4 and 11.7 +/- 5.8 N, respectively (P