Associação entre as indicações clínicas e os exames coproparasitológicos realizados no Hospital Universitário Pedro Ernesto - HUPE entre o período de 2009-2014

Abstract

The intestinal parasites are a serious public health problem in Brazil due to the high prevalence and are often underestimated by health professionals, despite the significant morbidity associated with them. Clinical indication of stool testing is extremely valuable to obtain an adequate result. This study aims to evaluate whether the clinical indications and the choice of EPF (stool tests), requested by the medical services exert positive influence on the diagnosis of intestinal parasites. Data were obtained from records of the Parasitology Laboratory from the University Hospital Pedro Ernesto (HUPE), between 2009-2014.Qualitative variables were analyzed and grouped into: Clinics Medical (Surgery and Transplantation, DIP (Infectious and Parasitic Diseases), Gastroenterology, Pediatrics and Rheumatology), types of requested tests: EPF preservative, EPF with preservative MIF (Merthiolate-Iodo-formaldehyde), EPF FAS preservative (sodium acetate-acetic acid-formaldehyde), this latter subdivided into search coccidia / trophozoites . The clinical indications were subdivided into: diarrhea, routine tests, patients with HTLV, anemia, abdominal pain, eosinophilia, patients with HIV, parasites research and transplants. The calculation of the association between the clinical indications and the positivity of parasitological stool tests was carried out by the x2 test (chi - square) and the Spearman correlation coefficient. The results showed a strong positive and significant correlation in clinical indication, parasitic research among the EPF tests - MIF and Trichrome Wheatley (ρ = 0.980). Despite the EPF - MIF have had a good correlation with EPF without preservative (ρ = 0.828) and present the same trend with respect to the influence of positivity in the survey, it was not significant. For the indication, abdominal pain, the EPF without preservatives had a strong positive correlation with EPF-MIF (ρ = 0.897). For this indication, both tests have the same influence of positivity. For other clinical indications such as anemia, Surgery / Transplant, diarrhea, patients with HIV, HTLV and eosinophilia (despite the EPF tests without preservative and EPF - MIF have presented a good correlation (ρ = 0.802), there was no statistical significance between examinations. Our results suggest that the correct requests of coproparasitological tests depending on the clinical indications are essential and have a great influence on parasitological diagnosis, so they can improve the specificity in the detection of intestinal parasites