Memorias del Instituto de Investigaciones en Ciencias de la Salud
versão On-line ISSN 1812-9528
MENDOZA, LP et al. Frequency and relative viral load of high risk human papilloma virus according to the cytological diagnosis in paraguayan women by hybrid capture II. Mem. Inst. Investig. Cienc. Salud [online]. 2010, vol.8, n.1, pp.06-13. ISSN 1812-9528.
Cervical cancer is the most frequent malignant tumor in women of Latin America being human papillomavirus (HPV) the main causative agent. Recently in Paraguay, we incorporated the method of hybrid capture II (CH II) which detects 13 types of HPV of high oncogenic risk (HR-HPV) and provides relative values of viral load. The aim of this study was to determine the frequency and relative viral load of HR-HPV by CH II according to the cytological diagnosis. There were 566 women (33 + 10 years) included in the study that attended the Research Institute in Health Sciences during the period 2006/2009. HR-HPV was detected in 43% of the women (241/566), being observed a high frequency of 23% in women negative to squamous intraepithelial lesions (NSIL). According to the cytological diagnosis, there was a highly significant difference between the values of relative viral load (p < 0.0001; Kruskal Wallis), with an increase of relative viral load of women with NSIL to women with SIL (mean values: 68 pg/ml in NSIL; 710 pg/ml in low grade SIL-LSIL and 474 pg/ml in high grade SIL-HSIL). Significant change was not observed in the relative viral load between LSIL and HSIL (p=0.60; Students t test).The results suggest that the values of relative viral load provided by CH II could be considered an important indicator for managing women with suspicion of SIL.
Palavras-chave : Relative viral load; high risk human papilloma virus; hybrid capture II; cytological diagnosis.