Zhonghua yi xue za zhi · 2011
[Clinical feature of cryptosporidium infection in HIV/AIDS patients with chronic diarrhea].
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Jiao Bing-xin, Wang Hui-zhu, Liu Ying, Li Juan, Guo Jie, Li Min, Wan Gang, Hua Wen-hao
Аннотация
OBJECTIVE: To investigate the clinical feature of cryptosporidium infection in HIV/AIDS patients with chronic diarrhea.
METHODS: 253 Stool samples were collected from HIV/AIDS patients with chronic diarrhea during Nov.2009 to Dec.2010. The samples were concentrated by Formalin-Ethyl Acetate Sedimentation technique and stained by Modified acid-fast stain (AFS) for the identification of oocysts by microscopy. Divided the cases into three groups according to their CD4 cell counts (< 200, ≥ 200 and < 500, ≥ 500/µl); meanwhile the cases were divided into three groups by their age (20 - 35, 36 - 55, 56 - 69). Analyzed the groups by comparison.
RESULTS: The total infection rate of Cryptosporidium in AIDS patients was 12.6% in 253 cases. CD4(+) T-lymphocyte counts was related to the infection rates of cryptosporidium, the difference was statistically significant (χ(2) = 10.33, P < 0.01): the infection rate were 20.4% (20/98), 9.23% (12/130), 0 (0/25) separately. In the 32 Cryptosporidium positive cases, 22 (68.8%) cases stood with diarrhea above 5 times per day, the three kind of CD4 counts level were separately 15 (15/20), 7 (7/12), 0. The difference was no statistically significant (P > 0.05). HIV/AIDS patients with chronic diarrhea who progressed during asymptomatic period, pre-AIDS period, AIDS period, had the infection rate of 0(0/7), 21.3% (19/89), 8.3% (13/157) respectively, the difference was statistically significant (χ(2) = 9.822, P < 0.01); 22 out of 32 Cryptosporidium positive cases in HIV patients were diagnosed with enteritis, the infection rate in urban area and rural area was 6.5% (7/104) and 16.8% (25/149) separately, the difference was statistically significant (χ(2) = 5.596, P < 0.05). Comparing different age groups, Cryptosporidium infection status were separately 7.3% (4/55), 13.4% (22/164), 17.6% (6/34). Each group's comparative difference was no statistically significant (χ(2) = 2.29, P > 0.05).
CONCLUSION: The infection rate of cryptosporidium and clinical severity of cryptosporidium infection are statistically correlated with CD4(+) T-lymphocyte counts, with AIDS stage, with HIV associated proctitis.
METHODS: 253 Stool samples were collected from HIV/AIDS patients with chronic diarrhea during Nov.2009 to Dec.2010. The samples were concentrated by Formalin-Ethyl Acetate Sedimentation technique and stained by Modified acid-fast stain (AFS) for the identification of oocysts by microscopy. Divided the cases into three groups according to their CD4 cell counts (< 200, ≥ 200 and < 500, ≥ 500/µl); meanwhile the cases were divided into three groups by their age (20 - 35, 36 - 55, 56 - 69). Analyzed the groups by comparison.
RESULTS: The total infection rate of Cryptosporidium in AIDS patients was 12.6% in 253 cases. CD4(+) T-lymphocyte counts was related to the infection rates of cryptosporidium, the difference was statistically significant (χ(2) = 10.33, P < 0.01): the infection rate were 20.4% (20/98), 9.23% (12/130), 0 (0/25) separately. In the 32 Cryptosporidium positive cases, 22 (68.8%) cases stood with diarrhea above 5 times per day, the three kind of CD4 counts level were separately 15 (15/20), 7 (7/12), 0. The difference was no statistically significant (P > 0.05). HIV/AIDS patients with chronic diarrhea who progressed during asymptomatic period, pre-AIDS period, AIDS period, had the infection rate of 0(0/7), 21.3% (19/89), 8.3% (13/157) respectively, the difference was statistically significant (χ(2) = 9.822, P < 0.01); 22 out of 32 Cryptosporidium positive cases in HIV patients were diagnosed with enteritis, the infection rate in urban area and rural area was 6.5% (7/104) and 16.8% (25/149) separately, the difference was statistically significant (χ(2) = 5.596, P < 0.05). Comparing different age groups, Cryptosporidium infection status were separately 7.3% (4/55), 13.4% (22/164), 17.6% (6/34). Each group's comparative difference was no statistically significant (χ(2) = 2.29, P > 0.05).
CONCLUSION: The infection rate of cryptosporidium and clinical severity of cryptosporidium infection are statistically correlated with CD4(+) T-lymphocyte counts, with AIDS stage, with HIV associated proctitis.