%0 Journal Article
%T Improving the screening of precancerous anal lesions in high-risk subjects with normal cytology: A longitudinal cohort study using simple tests.
%A Moreau J
%A Siproudhis L
%A Brochard C
%A Henno S
%A Thibault V
%A Boisteau E
%A Gouriou C
%A Carlo A
%A Lion A
%A Bouguen G
%A Lievre A
%J Dig Liver Dis
%V 52
%N 11
%D 11 2020
%M 32919905
%F 5.165
%R 10.1016/j.dld.2020.08.022
%X For patients at high risk of anal cancer, annual screening strategies using invasive evaluation methods are stressful. According to a normal examination at baseline using simple and non invasive tests, the aim of the work was to quantify neoplastic events.<BR>Data from patients with a normal evaluation at the first visit were retrospectively extracted from a prospective database. The individual follow-up period was at least two years and three evaluations. Patients with abnormal cytology were assessed using high-resolution anoscopy and targeted biopsies.<BR>A total of 182 subjects (F/M: 10/90, aged 48.1(10.6) years, HIV: 81%) were followed for 41(11) months. Anal cytology remained normal in 94 patients (52%), but high-grade anal neoplasms occurred in 28 patients (15%). Patients with a negative HPV16 status at baseline had cumulative probabilities of high-grade AIN of 0.4%(0.1%-1.9%), 2.6%(1.2%-5.9%) and 7.5%(4.5%-12.2%) after 1 year, 2 years and 3 years of follow-up, respectively. These probabilities were lower than those of patients with a positive HPV16 at baseline and those with a previous history of AIN.<BR>In patients with normal cytology and negative HPV16 at baseline, a three-year interval screening may be a less cumbersome alternative to traditional annual screening.