Hagisawa S, Shimada T, Arao H, Asada Y
School of Nursing, Oita Medical University, Japan.
J Tissue Viability. 2001 Apr;11(2):59-63. doi: 10.1016/s0965-206x(01)80025-5.
This study was undertaken to clarify the morphological features in the blood capillary and elastic fibre distribution of the human skin in terms of susceptibility to pressure sore development. Skin tissues were obtained from bony areas: the sacrum and ischial tuberosity and non-bony area: the centre of the gluteus maximus of 5 aged subjects post mortem for examination using light and scanning electron microscopy. It was observed that the sacral skin had finger-like papillae and underneath the blood capillary loops were most numerous. In the ischial skin the dermal papillae consisted of a combination of finger-like and trapezoid shapes having moderate density of blood capillaries. In contrast, the dermal papillae in the gluteal skin were almost flat, so that the blood capillaries were scattered. The size of elastic bundles in the papillary layer of the sacral, ischial and gluteal skin ranged from 2 to 3 microns, 5 to 10 microns, and 3 to 5 microns, respectively. The elastic fibres were densely distributed in the ischial skin while less so in the sacral skin.
本研究旨在根据压疮发生的易感性，阐明人体皮肤毛细血管和弹性纤维分布的形态学特征。从5名老年受试者死后的骨区（骶骨和坐骨结节）和非骨区（臀大肌中部）获取皮肤组织，使用光学显微镜和扫描电子显微镜进行检查。观察到骶部皮肤有指状乳头，其下毛细血管袢最多。坐骨皮肤的真皮乳头由指状和梯形组合而成，毛细血管密度适中。相比之下，臀部皮肤的真皮乳头几乎是扁平的，因此毛细血管分散分布。骶部、坐骨和臀部皮肤乳头层中弹性束的大小分别为2至3微米、5至10微米和3至5微米。弹性纤维在坐骨皮肤中密集分布，而在骶部皮肤中分布较少。
