JOURNAL ARTICLE

[Analysis of causes of death and etiological characteristics of skin tissue donors]

Z Q Ye, W G Xie, X B Lu, X Chen, C L Zhao, Q F Ruan, W Zhang
Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns 2020 June 20, 36 (6): 446-450
32594703
Objective: To investigate the causes of death and etiological characteristics of skin tissue donors, and to provide reference for allogeneic skin transplantation. Methods: From October 2008 to October 2018, 49 skin tissue donors accepted by the Burn Department of Wuhan Third Hospital met the inclusion criteria of this study, and a cross-sectional study was conducted. According to the cause of death, the donors were divided into accidental death group (19 cases) and non-accidental death group (30 cases). The sex and death age of 49 donors were recorded, and the death age between different sex donors and that of donors between accidental death group and non-accidental death group were compared. Diseases or circumstances that caused the death of donors, hepatitis B, hepatitis C, acquired immunodeficiency syndrome, syphilis virus carrying status, and peripheral blood microbial culture results of 49 donors were recorded, and the detection of blood-borne infectious risk factors of donors between accidental death group and non-accidental death group was compared. Abnormal skin tissue was also selected during allogenic skin graft preparing for pathological examination. Data were statistically analyzed with Mann-Whitney U test and continuity correction chi-square test. Results: (1) Out of the 49 donors in this group, 38 were male (77.55%) and 11 were female (22.45%). The death age was 42.00 (24.00, 55.00) years, and the death age of male donors was similar to that of female donors ( Z =0.120, P >0.05). The death age of donors in accidental death group was lower than that in non-accidental death group, but the difference was not statistically significant ( Z =-1.581, P >0.05). (2) Among the causes and circumstances of the 49 donors in this group, there were 19 cases (38.78%) of injury, poisoning, and some other consequences of external causes, 11 cases (22.45%) of circulatory system diseases, 9 cases (18.37%) of tumors, 3 cases (6.12%) of nervous system diseases, 2 cases (4.08%) of respiratory system diseases, and 2 cases (4.08%) of congenital malformation, deformation, and chromosome abnormality, 1 case (2.04%) of blood and hematopoietic organ diseases and some diseases related to immune mechanism, 1 case (2.04%) of digestive system disease, and 1 case (2.04%) of genitourinary system disease. (3) There were 9 donors (18.37%) with blood-borne infectious risk factors among the 49 donors in this group, including 8 cases (16.33%) of blood-borne infectious diseases, which were 5 cases (10.20%) of hepatitis B, 2 cases (4.08%) of syphilis, and 1 case (2.04%) of hepatitis C, respectively. Blood microorganism culture was positive in 1 case (2.04%), in which multi-drug resistant Pseudomonas aeruginosa was detected. Risk factors of blood-borne infection were detected in 2 donors in accidental death group, with detection ratio lower than that in non-accidental death group (7 cases), but the difference was not statistically significant ( χ (2)=0.562, P >0.05). (4) A total of 8 donors' abnormal skin tissue were selected, including 4 cases of intradermal pigmented nevus, 1 case of scar, 1 case of pseudoepithelioma hyperplasia, 1 case of epidermal verrucous hyperplasia, and 1 case of large amount of pigment granules in dermis. Conclusions: Non-accidental death caused by diseases is the main cause of death of skin tissue donors, and the risk of donor-derived infection of non-accidentally dead donors is slightly higher than that of accidentally dead donors. Before the allogeneic skin is obtained and transplanted, the cause of death of the donor should be carefully investigated, and the health status should be evaluated, so as to avoid the occurrence of donor-derived infection.

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