BG、CD4T淋巴细胞联合检测在早期诊断艾滋病患者肺部侵袭性真菌感染的临床意义

摘要

Objective To detect the content of(1-3)-β-D-dextran(BG)and CD4T lymphocytes in order to early diagnose invasive pulmonary fungal infection(IPFI)in AIDS patients.Methods According to the qualified lower respiratory tract fungal culture re-sults,153 patients with pulmonary infection symptoms and definitely diagnosed AIDS were divided into the positive IPFI group(63 cases)and the negative IPFI group(90 cases);then plasma BG and CD4T lymphocytes were simultaneously detected in the positive IPFI group,negative IPFI group and 50 healthy controls.The same index was performed the pairwise comparison in each group and the statistical analysis was conducted.Results The mean values of BG and CD4T lymphocytes in the positive IPFI group were (56.30±15.38)pg/mL and(56±41)/μL;which in the negative IPFI group were(21.32±14.26)pg/mL and(200±53)/μL;which in the healthy control group were(2.89±1.55)pg/mL and(480±89)/μL.The pairwise comparison of BG and CD4T lymphocytes showed the statistical differences among the three groups by the t-test(P <0.01).Conclusion The combined detection of BG and CD4 lymphocyte has the value in early diagnosis of IPFI)on AIDS apparent infection.%目的：分别测定（1-3）-β-D-葡聚糖（BG）、CD4T 淋巴细胞的水平，以早期诊断艾滋患者肺部侵袭性真菌感染（IPFI）。方法根据合格的下呼吸道标本真菌培养结果选择153例有肺部感染症状并已确诊的艾滋病患者，分为肺部侵袭性真菌感染阳性组63例和肺部侵袭性真菌感染阴性组90例；然后检测肺部侵袭性真菌感染阳性组63例、肺部侵袭性真菌感染阴性组90例和50例健康对照组血浆中的 BG，同时检测各组的 CD4T 淋巴细胞数量，各组同一项目两两比较，进行统计学分析。结果肺部侵袭性真菌感染阳性组 BG 均值为（56.30±15.38）pg／mL，CD4T 淋巴细胞均值为（56±41）／μL；肺部侵袭性真菌感染阴性组 BG 均值为（21.32±14.26）pg／mL，CD4T 淋巴细胞均值为（200±53）／μL；健康对照者组 BG 均值为（2.89±1.55）pg／mL，CD4淋巴细胞均值为（480±89）／μL。3组中 BG 水平与 CD4T 淋巴细胞两两比较，两者进行 t 检验，差异均有统计学意义（P ＜0.01）。结论联合检测 BG、CD4淋巴细胞对艾滋病患者 IPFI 感染具有明显的早期诊断价值。