title: Cytological Evaluation and REBA HPV-ID HPV Testing of Newly Developed Liquid-Based Cytology, EASYPREP: Comparison with SurePath.
abstract: BACKGROUND
  The objective of this study was to evaluate a newly-developed EASYPREP liquid-based cytology method in cervicovaginal specimens and compare it with SurePath.
  
  
  METHODS
  Cervicovaginal specimens were prospectively collected from 1,000 patients with EASYPREP and SurePath. The specimens were first collected by brushing for SurePath and second for EASYPREP. The specimens of both methods were diagnosed according to the Bethesda System. Additionally, we performed to REBA HPV-ID genotyping and sequencing analysis for human papillomavirus (HPV) on 249 specimens.
  
  
  RESULTS
  EASYPREP and SurePath showed even distribution of cells and were equal in cellularity and staining quality. The diagnostic agreement between the two methods was 96.5%. Based on the standard of SurePath, the sensitivity, specificity, positive predictive value, and negative predictive value of EASYPREP were 90.7%, 99.2%, 94.8%, and 98.5%, respectively. The positivity of REBA HPV-ID was 49.4% and 95.1% in normal and abnormal cytological samples, respectively. The result of REBA HPV-ID had high concordance with sequencing analysis.
  
  
  CONCLUSIONS
  EASYPREP provided comparable results to SurePath in the diagnosis and staining quality of cytology examinations and in HPV testing with REBA HPV-ID. EASYPREP could be another LBC method choice for the cervicovaginal specimens. Additionally, REBA HPV-ID may be a useful method for HPV genotyping.
authors.affiliation: Department of Hospital Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Youn Soo
authors.initials: YS
authors.lastname: Lee
authors.forename: Gyungyub
authors.initials: G
authors.lastname: Gong
authors.forename: Jin Hee
authors.initials: JH
authors.lastname: Sohn
authors.forename: Ki Sung
authors.initials: KS
authors.lastname: Ryu
authors.forename: Jung Hun
authors.initials: JH
authors.lastname: Lee
authors.forename: Shin Kwang
authors.initials: SK
authors.lastname: Khang
authors.forename: Kyung-Ja
authors.initials: KJ
authors.lastname: Cho
authors.forename: Yong-Man
authors.initials: YM
authors.lastname: Kim
authors.forename: Chang Suk
authors.initials: CS
authors.lastname: Kang
keywords: Cytological techniques; EASYPREP; Human papillomavirus; REBA HPV-ID; Vaginal smears