Acta Medica Okayama 68巻 2号
2014-04 発行

Prevalence of High-Risk Human Papillomavirus (HR-HPV) Infection among Women with Normal and Abnormal Cervical Cytology in Myanmar

Mu-Mu-Shwe Department of Medical Research (Lower Myanmar), Ministry of Health
Harano, Teruo Department of General Medicine, Okayama University Hospital
Okada, Shigeru Professor Emeritus, Okayama University
Aye-Aye-Win Department of Medical Research (Lower Myanmar), Ministry of Health
Khin-Saw-Aye Department of Medical Research (Lower Myanmar), Ministry of Health
Hlaing-Myat-Thu Department of Medical Research (Lower Myanmar), Ministry of Health
Mo-Mo-Win Department of Medical Research (Lower Myanmar), Ministry of Health
Khin-Khin-Oo Department of Medical Research (Lower Myanmar), Ministry of Health
Myo-Khin Department of Medical Research (Lower Myanmar), Ministry of Health
Publication Date
2014-04
Abstract
This study aimed to determine the prevalence of normal and abnormal cervical cytology in women who attended the cervical cancer screening clinic of the Department of Medical Research in Lower Myanmar, and to determine the proportion of high-risk (HR) human papillomavirus (HPV) infection and HPV genotypes in women with normal and abnormal cervical cytology. A total of 1,771 women were screened from 2010 to 2011. Among them, 762 women (43.0%) had a normal smear, and 866 (48.9%) and 87 (4.9%) were diagnosed with inflammatory smears and atypical squamous cells of undetermined significance (ASCUS), respectively. Diagnoses of low-grade squamous intraepithelial lesion (LSIL) and high-grade squamous intraepithelial lesion (HSIL) numbered 42 (2.3%) and 11 (0.6%) respectively. Three cases of squamous cell carcinoma (SCC) (0.2%) were detected. Cervical swabs were collected from 96 women with abnormal cervical cytology and 20 with normal cytology. HR-HPV DNA testing was performed by polymerase chain reaction (PCR) with pU1M/pU2R primers. HR-HPV were identified in 35.5% (22/62) of inflammatory smears, 60% (6/10) of ASCUS, 86.7% (13/15) of LSIL, 50% (3/6) of HSIL, 100% (3/3) of SCC and 5% (1/20) of normal cytology. In PCR-positive cases, HPV genotyping was analyzed by the cleaved amplification polymorphism method. The most prevalent HPV genotypes were HPV-16 (60.4%) followed by HPV-31 (14.6%), HPV-18 (12.5%) and HPV-58 (12.5%). Women with abnormal cervical cytology were 10 times more likely to be HR-HPV positive than those with normal cytology (p=0.0001). This study suggests that the implementation of a cervical cytology screening program and routine vaccination against HPV in preadolescent and adolescent groups are needed to reduce the burden of HPV-associated cervical cancer.
Document Type
Original Article
Keywords
human papillomavirus
cervical neoplasia
genotyping
Myanmar
Link to PubMed
ISSN
0386-300X
NCID
AA00508441
JaLC DOI
DOI:
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