Resumen

CHACON, Nathalie et al. Ocurrencia de isospora belli, cryptosporidium SPP y cyclospora cayetanenesis en pacientes urbanos evaluados por síntomas gastrointestinales con o sin imnunosupresión. RFM [online]. 2009, vol.32, n.2, pp.124-131. ISSN 0798-0469.

These two years follow up; cross-sectional study estimates the occurrence of intestinal coccidias in urban patients from the metropolitan area of Caracas-Venezuela. One thousand eight hundred thirty one outpatient case reports were analyzed, both sex and 28.8 ± 22.93 years. Soil-transmitted helminthes laboratory of the Tropical Medicine Institute (SGH-IMT) evaluated 4 650 feces samples from 1 550 outpatients by direct, formol triton ether and Baermann techniques, Additionally, modified Ziehl-Neelsen, were done because of clinicians or SGH-IMT suggestion for 150 outpatients. Eosinophilia (40.54 %; 225/555) was the major cause of referral and consultation. The mean of the absolute count of eosinophils (3 151+ 5 161) showed low (63/204) and moderate (25/204) eosinophila. Other causes of consultation were: abdominal pain (27.72 %; 122/440), nausea/ vomiting (19.03 %; 83/436), tenesmus/constipation (16.05 %; 70/436) and finally, liquid fecal consistency (4.87 %; 74/1477). Parasite infected patients (43.7 %; 677/1550) had normal (81.25 %; 494/608) and semi liquid feces (37 %; 57/608). Only, 5.92 % (36/608) had liquid consistency. Modified Ziehl-Neelsen demonstrates 12 positive IC (8 %) for: Isospora belli (5.33.%; 8/150), Cryptosporidium spp (2 %; 3/150) and Cyclospora cayetanensis (0.66 %; 1/150). The only case of cyclosporidiosis was co-infected with Blastocystis hominis and had normal feces. These results agrees with the idea for clinicians to ask for additional, low cost, serial parasitological test in feces, to evaluate urban inmunocompetent outpatients, with gastrointestinal symptoms/eosinophilia, even without diarrhea, because the basic feces techniques, used routinely, fails to make the precise parasite diagnostic, underestimating coccidiosis.

Palabras clave : Coccidiosis; Cryptosporidium; Isospora; Cyclospora; Urban health.