Se demostro que la VIAM no presento ventajas significativas sobre la VIA en los casos en que se requiere y esta disponible la confirmacion de las lesiones del cuello uterino por un medico general.
From April-December 2004, women in San Martin, Peru, who were referred as VIA-positive by an "obstetriz" (a professional midwife with 6 years of university training) were randomized into two groups for confirmatory screening by a physician using either VIA or VIAM with an AviScope,[TM] a hand-held 4x magnification scope with a green light source.
A total of 358 women participated in the study; 161 had a confirmatory examination with VIAM and 159 with VIA.
For settings where physician confirmation of cervical abnormalities identified through visual inspection is required and available, this study demonstrates that VIAM had no significant advantage over VIA.
In San Martin, Peru, the Screening and Immediate Attention project (TATI-Tamizaje y Tratamiento Inmediato) employed visual inspection with acetic acid (VIA) for screening, and for those who were positive, VIAM with the AviScope[TM] to confirm the diagnosis prior to treatment with cryotherapy (6).
The sample size of 400 (200 participating in each arm of the trial) was calculated to detect a 15% increase in sensitivity for CIN 1+ when using VIAM (power of 0.
VIA and VIAM confirmatory results were classified as normal or abnormal.
The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and 95% confidence intervals (95%CI) were calculated for confirmatory visual examinations with VIA and VIAM, using colposcopy and histology as the reference standard.
Of the 420 VIA-positive women examined by a physician, 358 were also evaluated by a colposcopist (184 were examined with VIAM and 174 with VIA only).
VIAM's growth can be attributed to our customers' confidence in our ability to deliver a high quality product," says Keith Hayes, VIAM COO.
VIAM manufactures floor mats, truck liners and other nonwoven fabric auto accessories for domestic and overseas customers such as Toyota, Nissan, Honda, General Motors, Mazda, Mitsubishi, Ford and others.