Endocervical gland involvement by cervical intraepithelial neoplasia grade III. Predictive value for residual and/or recurrent disease

The prognostic significance for residual or recurrent disease of cervical intraepithelial neoplasia Grade III in endocervical glands by cone biopsy was examined in 341 consecutive patients diagnosed from 1979 through 1983 and followed through 1988. Treatment by hysterectomy, within 8 weeks of cone biopsy, was done in 96 patients. The only variable that could predict residual disease at hysterectomy was positive margins (P = 0.059). However, both positive margins and positive glands were (independently of one another and after the effects of length of follow-up, hospital of admission, and age at time of first diagnosis were held constant) highly significant predictors of residual or recurrent disease in the 245 women who did not undergo a hysterectomy (P = 0.000 for each). The authors therefore conclude that information concerning gland involvement on cone biopsy specimens should influence patient management.     

Human papillomavirus infection in patients with residual or recurrent cervical intraepithelial neoplasia

AIMS AND BACKGROUND: The main purpose of this longitudinal study was to evaluate the frequency of HPV infection in patients with residual or recurrent CIN. METHODS: 797 consecutive patients with CIN, treated with conization, were included. In 38 patients with residual or recurrent CIN in whom reconization was performed, infection with high-risk HPV types was analyzed. RESULTS: Reconization was performed in 4.8% of patients. Before reconization, 21 patients (55.3%) were infected with high-risk HPV and 17 patients (44.7%) were HPV negative. Among the HPV-negative patients, two (11.8%) had CIN 1, five (29.4%) CIN 2, nine (52.9%) CIN 3 and one patient (5.9%) had microinvasive cancer of the uterine cervix. The difference in frequency of infection with high-risk HPV was not significant (chi-square 0.372; P > 0.05). CONCLUSIONS: On the basis of the study results it is not possible to recommend the HPV test as the only method of detection of residual or recurrent CIN after conization.     

Elevated methylation of HPV16 DNA is associated with the development of high grade cervical intraepithelial neoplasia

We explored the association of human papillomavirus type 16 (HPV16) DNA methylation with age, viral load, viral persistence and risk of incident and prevalent high grade CIN (CIN2+) in serially collected specimens from the Guanacaste, Costa Rica cohort. 273 exfoliated cervical cell specimens (diagnostic and pre‐diagnostic) were selected: (1) 92 with HPV16 DNA clearance (controls), (2) 72 with HPV16 DNA persistence (without CIN2+) and (3) 109 with CIN2+. DNA was extracted, bisulfite converted and methylation was quantified using pyrosequencing assays at 66 CpGs across the HPV genome. The Kruskal‐Wallis test was used to determine significant differences among groups, and receiver operating characteristic curve analyses were used to evaluate how well methylation identified women with CIN2+. In diagnostic specimens, 88% of CpG sites had significantly higher methylation levels in CIN2+ after correction for multiple tests compared with controls. The highest area under the ROC curve (AUC) was 0.82 for CpG site 6457 in L1, and a diagnostic sensitivity of 91% corresponded to a specificity of 60% for CIN2+. Prospectively, 17% of CpG sites had significantly higher methylation in pre‐diagnostic CIN2+ specimens (median time of 3 years before diagnosis) versus controls. The strongest pre‐diagnostic CpG site was 6367 in L1 with an AUC of 0.76. Age‐stratified analyses suggested that women older than the median age of 28 years have an increased risk of precancer associated with high methylation. Higher methylation in CIN2+ cases was not explained by higher viral load. We conclude that elevated levels of HPV16 DNA methylation may be useful to predict concurrently diagnosed as well as future CIN2+.     

Treatment of cervical intraepithelial neoplasia III by hysterectomy without intervening conization in patients with adequate colposcopy

One hundred forty-four patients found to have cervical intraepithelial neoplasia (CIN) III on colposcopically directed biopsy who had completed childbearing were treated with a vaginal hysterectomy (112 patients) or abdominal hysterectomy (32 patients). The mean age of these patients was 28.6 years and the mean gravidity, 3.4. All patients had adequate colposcopy of the cervix and vagina. The transformation zone and lesion(s) were completely visualized. The uterus was submitted for histologic examination in all cases. The cervix was sectioned in a radial fashion (minimum 12 sections), and the proximal endocervix and lower uterine segment were sectioned transversely. CIN III was present in the cervix of 117 patients, CIN II in 9 patients, CIN I in 8 patients, and no evidence of residual neoplasia in 9 patients. Microinvasive cancer (1.3 mm stromal invasion without lymph-vascular space invasion) was present in one patient. After surgery, patients were seen every 3 months for 2 years and every 6 months thereafter. All 144 patients were followed up for at least 12 months, 124 patients for 24 months, 103 patients for 36 months, and 60 patients for 60 to 120 months. To date, all patients are alive and well and there have been no cases of recurrent vaginal neoplasia or cancer. These data suggest that: adequate colposcopy is an accurate method to rule out invasive cervical cancer and abdominal or vaginal hysterectomy is an effective therapeutic procedure in women with CIN III who have completed reproductive function.     

HPV16 L1 and L2 DNA methylation predicts high‐grade cervical intraepithelial neoplasia in women with mildly abnormal cervical cytology

DNA methylation changes in human papillomavirus type 16 (HPV16) DNA are common and might be important for identifying women at increased risk of cervical cancer. Using recently published data from Costa Rica we developed a classification score to differentiate women with cervical intraepithelial neoplasia grade 2 or 3 (CIN2/3) from those with no evident high‐grade lesions. Here, we aim to investigate the performance of the score using data from the UK. Exfoliated cervical cells at baseline and 6‐months follow‐up were analyzed in 84 women selected from a randomized clinical trial of women undergoing surveillance for low‐grade cytology. Selection of women for the methylation study was based on detectable HPV16 in the baseline sample. Purified DNA was bisulfite converted, amplified and pyrosequenced at selected CpG sites in the viral genome (URR, E6, L1 and L2), with blinding of laboratory personnel to the clinical data. The primary measure was a predefined score combining the mean methylation in L1 and any methylation in L2. At the second follow‐up visit, 73/84 (87%) women were HPV16 positive and of these 25 had a histopathological diagnosis of CIN2/3. The score was significantly associated with CIN2/3 (area under curve = 0.74, p = 0.002). For a cutoff with 92% sensitivity, colposcopy could have been avoided in 40% (95% CI 27–54%) of HPV16 positive women without CIN2/3; positive predictive value was 44% (32–58%) and negative predictive value was 90% (71–97%). We conclude that quantitative DNA methylation assays could help to improve triage among HPV16 positive women.     

高级别宫颈上皮内瘤变行子宫切除术患者术前病理确诊方式的回顾性分析

目的:通过对比阴道镜下活检病理、宫颈锥切术中冰冻病理与术后石蜡病理（paraffin section examination,PSE）的一致性,对高级别宫颈上皮内瘤变行子宫切除术的术前病理确诊方式进行研究。方法:选取2010年1月至2015年12月阴道镜活检病理为宫颈上皮内瘤变Ⅱ级(CINⅡ)和Ⅲ级(CINⅢ、原位癌)在我院行宫颈锥切术患者共454例,其中依宫颈锥切术中冰冻病理即刻行子宫切除手术治疗患者238例,另外216例为待宫颈锥切术后石蜡病理回报后再次子宫切除手术治疗的患者,对比阴道镜下活检病理、宫颈锥切术中冰冻病理与术后石蜡病理的一致性,以及对比锥切术后石蜡病理与再次子宫切除术后病理的一致性。结果:阴道镜活检与术中冰冻病理诊断的符合率为89.11%（270/303）,CINⅡ为63.33％（38/60）,22例升级为CINⅢ;CINⅢ为95.47%（232/243）,11例升级（9例升级为宫颈癌Ⅰa1期,2例升级为Ⅰb1期）。阴道镜活检与术后石蜡病理诊断的符合率为77.53%(352/454)。CINⅡ为22.99%(20/87),67例升级（57例升级为CINⅢ,8例升级为宫颈癌Ⅰa1期,2例升级为Ⅰa2期）;CINⅢ为 90.46%（332/367）,35例升级（26例升级为宫颈癌Ⅰa1期,7例升级为Ⅰb1期,2例升级为Ⅱa期）。阴道镜活检对宫颈癌的漏诊率总体为9.91％(45／454)。宫颈锥切术中同时送冰冻病理患者303例,宫颈锥切术中冰冻病理与术后石蜡病理诊断的符合率为88.12%(267/303)。CINⅡ为60.00%(36/60),24例升级（18例升级为CINⅢ,5例升级为宫颈癌Ⅰa1期,1例升级为Ⅰa2期）;CINⅢ为95.06%(231/243),12例升级（9例升级为宫颈癌Ⅰa1期,2例升级为Ⅰb1期,1例升级为Ⅱa期）。宫颈锥切术中冰冻病理对宫颈癌的漏诊率总体为5.94%（18/303）。宫颈锥切术中同时送冰冻病理患者303例,宫颈锥切术术中冰冻病理比阴道镜活检病理诊断的符合率高,差异有统计学意义（χ2= 27.68,P﹤0.05）。待宫颈锥切术后石蜡病理回报后再次手术治疗的216例患者中,宫颈锥切术后石蜡病理对高级别宫颈上皮内瘤变及浸润癌诊断的准确率可达99.07％（214/216）。结论:阴道镜活检是初步诊断高级别宫颈上皮内瘤变的一种方法;宫颈锥切术具有诊断与治疗的作用,术中冰冻病理（frozen section examination,FSE）能够提早发现部分微小浸润癌及浸润癌,但是存在一定的误诊和漏诊率。因此,建议对所有无生育要求的高级别宫颈上皮内瘤变患者,应先行宫颈锥切术,待术后石蜡病理回报后再行子宫切除术,以达到规范治疗。     

24例外阴上皮内瘤变Ⅲ级患者的临床分析

目的研究外阴上皮内瘤变Ⅲ级(VINⅢ)患者的诊治方法,并进行疗效分析。方法总结24例VINⅢ患者的临床资料,对其临床表现、HPV感染、病理、治疗方法及复发等进行分析。结果24例VINⅢ患者青年组(≤40岁)占62.5%,中老年组(>40岁)占37.5%。HPV感染占41.6%,在青年组和中老年组中分别为53.3%、2/9。24例患者均行手术治疗,局部扩大切除术为33.3%,单纯外阴切除术为66.7%。术后复发率为12.5%,切缘未净与复发相关,而年龄、HPV感染、病变多灶性、手术方式等则无明显相关。结论VIN在年轻妇女中的患病有增加趋势,可能与HPV感染有关。治疗宜个体化,手术可采用局部扩大切除或单纯外阴切除,同时应强调定期随访。     

DNA定量分析联合高危型HPV检测对高级别CIN的检出价值

目的:研究宫颈细胞DNA定量分析联合高危型HPV检测在诊断高级别宫颈上皮内瘤变（cervical intraepithelial neoplasia,CIN）的应用价值。方法:收集220例有DNA定量分析、宫颈薄层液基细胞学检查（thinprep cytology test,TCT）、二代杂交捕获（hybrid capture II,HC2)检测高危型人乳头瘤病毒（human papillomavirus,HPV）及宫颈活检资料的病例。结果:以宫颈活检组织病理学为诊断标准,220例活检中60例病理组织学为高级别宫颈上皮内瘤变的病例,DNA定量分析对检测高级别CIN的敏感性为96.7%,特异性为25.0%,阳性预测值为32.6%,阴性预测值为95.2%,而TCT及HC2的敏感性、特异性、阳性预测值及阴性预测值分别为96.7%、3.8%、27.4%、75.0%及98.3%、38.8%、37.6%、98.4%。DNA定量分析除敏感性以外,其他指标均高于TCT检测,而低于HC2检测。DNA定量分析及HC2检测均阴性的病例,阴道镜活检无高级别鳞状上皮内瘤变病例。结论:DNA定量分析在诊断高级别宫颈上皮内瘤变中优于TCT,与HC2检测联用可提高诊断高级别宫颈上皮内瘤变的敏感性和特异性。     

Human papillomavirus 16 in breast cancer of women treated for high grade cervical intraepithelial neoplasia (CIN III).

Women with both a history of high grade cervical intraepithelial neoplasia (CIN III) and breast carcinoma as second primary cancer were selected for studying the presence of HPV in breast carcinomas. Paraffin embedded material from 38 patients with 41 breast carcinoma cases after CIN III were examined by polymerase chain reaction (PCR) and in situ hybridization. By PCR we detected HPV 16 DNA in 19 out of 41 cases (46%) of the breast carcinomas. One case proved to be HPV 16 positive also by in situ hybridization. HPV 16 was also detected in 32 out of the 38 patients with CIN III (84%). All HPV 16 positive breast carcinomas were HPV 16 positive in their corresponding CIN III lesions. Eight patients with diagnosed breast cancer before the CIN III lesions were used as controls. None of these had HPV positive breast carcinomas. No cases were positive for HPV 11, 18, or 33. HPV 16 was detected in the primary tumours, in local metastases from HPV 16 positive tumours, in a distant HPV 16 positive breast carcinoma metastasis to the colon, and in other primary cancers in patients with HPV 16 positive breast carcinomas and HPV 16 positive CIN III. Estrogen and progesterone receptors were quantified in the HPV positive and HPV negative breast carcinomas, and there was no significant difference in the fraction positive in the two groups. Oncogenic HPV DNA might be transported from an original site of infection to other organs by blood or lymph, and possibly be a factor in the development of cancer in different organs.     

Clinical significance of immunocytochemistry for PIK3CA as a carcinogenesis-related marker on liquid-based cytology in cervical intraepithelial neoplasia

The catalytic subunit alpha of phosphatidylinositol 3-kinase (PIK3CA) has been expected to play a role as an important oncogene in uterine cervical carcinoma, whose expression in non-invasive lesions has received considerable attention. We investigated the potential of PIK3CA as a carcinogenesis-related marker for early intraepithelial lesion of the uterine cervix in cytology samples. Seventy-four cases with abnormal cytology suggesting the existence of cervical intraepithelial neoplasia (CIN) lesions, whose findings were histologically confirmed, were selected; they consisted of 20 CIN1, 21 CIN2, and 33 CIN3, respectively. In addition, 17 normal cases, whose cervical cytology revealed no abnormality over three occasions, were selected. Liquid-based cytology specimens were applied for human papillomavirus (HPV) DNA typing and immunocytochemistry using three different antibodies for p16(INK4a), Ki-67 and PIK3CA, respectively. The fraction of immunopositive cells on the slides was calculated and expressed as mean numbers. Receiver operating characteristic (ROC) plots were generated to determine the diagnostic accuracy of each immunocytochemistry test. The mean number of immunopositive cells in the CIN3 group was significantly higher than other groups for all three antibodies. Among all groups, PIK3CA showed a superior specificity to distinguish CIN3 from other groups. Comparison of three markers by ROC curves also revealed that PIK3CA provided the best method for distinguishing CIN3. Thus, expression of PIK3CA was observed in liquid-based cytology in CIN lesions, which suggested its diagnostic significance in addition to the use of routine cervical cancer smear and the HPV screening program.     

Outcome after conization for cervical intraepithelial neoplasia grade III: relation with surgical margins, extension to the crypts and mitoses

AIMS AND BACKGROUND: Factors linked to residual neoplasia and recurrence following conization of the uterine cervix for treating cervical intraepithelial neoplasia grade III (CIN III), such as the surgical margins, extension of CIN into the crypts and the number of mitoses, have been studied with contradictory results. We evaluated patients submitted to conization for CIN III and analyzed the aforementioned factors, relating them to recurrence and residual neoplasia in hysterectomy specimens. METHODS: The surgical specimen of cold-knife conization for CIN III performed in 63 patients (average age, 37.3 +/- 9.3 years) was fixed in 4% formaldehyde. The ectocervical and endocervical margins were removed and the cone was cut into fragments perpendicular to the surface of the endocervical mucosa (1 mm thick). One histological section (5 microm thick) was cut from each block and stained with hematoxylin-eosin. We studied the total number of fragments from each cone and affected by CIN, endocervical and ectocervical margins, extension to the crypts, number of mitoses and tripolar mitoses in 100 microscope fields using a 100x objective. RESULTS: The endocervical margin was involved in 34.9% vs 9.5% (P = 0.001) of ectocervical margins. Recurrence affected 53.8% of cases presenting involved margins versus 12.9% in the cases without involved margins (P = 0.0078). The average interval to recurrence was 3.2 years. CIN was present in 2.5 to 100% (median, 28%) of the cone fragments (median no., 28; range, 7-95). A median of 44.4% and 25% of cone fragments presented CIN with and without recurrence, respectively. Correlation of the number of mitoses with tripolar mitoses and the percentage of fragments involved by CIN with the number of mitoses and tripolar mitoses showed, respectively, P = 0.02, 0.05 and 0.005. A median of 142 mitosis and 4 tripolar mitosis were observed per case with disease recurrence versus 104 and 3 (P = 0.02, 0.6), respectively, when recurrence did not occur. Of 14 patients who underwent hysterectomy after conization (mean, 3.6 +/- 3 months afterwards) for endocervical or both margins involved by CIN in the cone specimen, 8 (57.1%) presented CIN III and one (7.1%) microinvasive carcinoma. In 96.8% of the conizations, the CIN extended to the crypts. CONCLUSIONS: Involved margins and mitoses are associated with a greater recurrence rate for CIN. Residual neoplasia in the hysterectomy specimen after an involved margin with conization is frequent.     

Viral load as a predictor of the risk of cervical intraepithelial neoplasia

HPV infections are believed to be a necessary cause of cervical cancer. Viral burden, as a surrogate indicator for persistence, may help predict risk of subsequent SIL. We used results of HPV test and cytology data repeated every 4–6 months in 2,081 women participating in a longitudinal study of the natural history of HPV infection and cervical neoplasia in São Paulo, Brazil. Using the MY09/11 PCR protocol, 473 women were positive for HPV DNA during the first 2 visits. We retested all positive specimens by a quantitative, low‐stringency PCR method to measure viral burden in cervical cells. Mean viral loads and 95% CIs were calculated using log‐transformed data. RRs and 95% CIs of incident SIL were calculated by proportional hazards models, adjusting for age and HPV oncogenicity. The risk of incident lesions increased with viral load at enrollment. The mean number of viral copies/cell at enrollment was 2.6 for women with no incident lesions and increased (trend p = 0.003) to 15.1 for women developing 3 or more SIL events over 6 years of follow‐up. Compared to those with <1 copy per cell in specimens tested during the first 2 visits, RRs for incident SIL increased from 1.9 (95% CI 0.8–4.2) for those with 1–10 copies/cell to 4.5 (95% CI 1.9–10.7) for those with >1,000 copies/cell. The equivalent RR of HSIL for >1,000 copies/cell was 2.6 (95% CI 0.5–13.2). Viral burden appears to have an independent effect on SIL incidence. Measurement of viral load, as a surrogate for HPV persistence, may identify women at risk of developing cervical cancer precursors. © 2002 Wiley‐Liss, Inc.     

cTnT can be a useful marker for early detection of anthracycline cardiotoxicity.

BACKGROUND: The level of serum cardiac troponin-T (cTnT) increases with myocardial damage. We sought to assess whether cTnT level could be a useful marker for the early detection of anthracycline cardiotoxicity. PATIENTS AND METHODS: Forty-one patients who had been scheduled to receive anthracycline-containing combination chemotherapy were included in the study. Serum cTnT levels were measured before (baseline) and after the first cycle of chemotherapy, and again, after the last cycle of chemotherapy. In all patients, the left ventricular ejection fraction (LVEF), fractional shortening (FS), early peak flow/atrial flow velocity (E/A) ratio, and the isovolemic relaxation time (IRT) were measured echocardiographically, both before and after the completion of chemotherapy. RESULTS: LVEF and FS did not change in any patients. In 21 patients (49%), the E/A ratio decreased after therapy as compared to the pre-treatment values. The decrease in E/A ratio was more prominent in patients who were older than the mean age of our study group, which was 44 years. The post-treatment IRT was prolonged compared with the pretreatment IRT (94.0 +/- 2.0 versus 85.6 +/- 10.5 ms, respectively). cTnT levels after completion of therapy were elevated in 14 (34%) patients, and exceeded the upper limit of the normal range (>0.1 ng/ml) in only one patient. cTnT levels measured after completion of therapy were significantly higher, compared with those measured at baseline and after the first cycle of therapy. In the younger age group (< or =44 years old), there was a two-fold decrease in the E/A ratio in those patients whose cTnT levels increased during the therapy, when compared with those whose cTnT levels did not change (21% versus 43%, respectively). CONCLUSION: Increased serum cTnT level can be detected in the early stages of anthracycline therapy and it is associated with diastolic dysfunction of the left ventricle. Therefore, serum cTnT level could be a useful measure for early detection of anthracycline-induced cardiotoxicity.     

Low risk of type-specific carcinogenic HPV re-appearance with subsequent cervical intraepithelial neoplasia grade 2/3

Carcinogenic human papillomavirus (HPV) infections are very common after sexual debut and nearly all become undetectable ("clear") within a few years. Following clearance, the long-term risks of type-specific HPV re-appearance and subsequent risk of cervical intraepithelial neoplasia grade 2 or worse (CIN2+) are not well defined. In the 7-year, population-based cohort study in Guanacaste, Costa Rica, we studied how often type-specific carcinogenic HPV infections re-appeared after clearance and how often re-appearance led to CIN2+. We considered 1,740 carcinogenic HPV infections detected by MY09/11 PCR among 2,805 women (18-91 years old, median 34) who were actively followed at 6- or 12-month intervals. We identified women with one or more type-specific HPV infections that cleared and re-appeared and further defined a subgroup of "definite clearance and re-appearance" (≥2 intervening negative results over a period of ≥1 year). We determined the absolute risk of CIN2+ among the different groups. p values are two-sided. Only 7.7% (81/1,052) of HPV-infected women had intervening negative results. Very few (3.7%, 39/1,052) had "definite clearance and re-appearance", of which 5.1% (2/39) subsequently persisted to a diagnosis of CIN2. There were zero CIN3+ lesions. Extremely few women (2/2,805 of women in our cohort) had a type-specific carcinogenic HPV infection clear, re-appear and lead to CIN2+. If confirmed, this argues against vaccination to avoid re-appearance that leads to precursor lesions and against the need of frequent HPV screening after initial negative results.     

A dietary pattern associated with LINE-1 methylation alters the risk of developing cervical intraepithelial neoplasia

There is a paucity of research examining the relationships between dietary patterns and risk of developing precancerous lesions as well as biomarkers associated with such dietary patterns. The purpose of the current study was to identify dietary patterns that are associated with higher grades of cervical intraepithelial neoplasia (CIN 2+) and to determine whether these dietary patterns are associated with the degree of DNA methylation in the long interspersed nucleotide elements (L1s) of peripheral blood mononuclear cells (PBMCs), a biomarker associated with risk of developing CIN 2+. Study population consisted of 319 child-bearing age women. Dietary patterns were derived by factor analysis. The degree of PBMC L1 methylation was assessed by pyrosequencing. Logistic regression models were used to evaluate the associations between dietary patterns and CIN 2+. Similar models were used to evaluate the associations between dietary patterns and degree of PBMC L1 methylation in women free of CIN 2+. Women with the unhealthiest dietary pattern were 3.5 times more likely to be diagnosed with CIN 2+ than women with the healthiest dietary pattern [OR = 3.5; 95% confidence interval (CI), 1.2-10.1; P = 0.02]. Women at risk for developing CIN 2+ with the healthiest dietary pattern were 3.3 times more likely to have higher PBMC L1 methylation than women with the unhealthiest dietary pattern (OR = 3.3; 95% CI, 1.0-10.6; P = 0.04). Our findings suggest that human papilloma virus associated risk of developing CIN 2+ may be reduced by improving dietary patterns. The degree of PBMC L1 methylation may serve as a biomarker for monitoring the effectiveness of dietary modifications needed for reducing the risk of CIN 2+.     

LEEP治疗中度宫颈上皮内瘤变对HPV感染的影响

目的：探讨高危型人乳头瘤病毒（HPV）感染的中度宫颈上皮内瘤变（CINⅡ）患者在宫颈环形电切术（LEEP）治疗后的转归。方法选取206例CINⅡ合并高危型HPV阳性患者,予以LEEP治疗,分别于术后3、6、12及24个月随诊,行宫颈液基细胞学（TCT）、第二代捕获杂交法（HCⅡ）和23种HPV分型检查。结果206例CINⅡ患者LEEP治疗后3、6、12及24个月HR-HPV转阴率分别为39.3%、74.8%、92.7%和96.6%;随访24个月, HPV依然阳性的患者中,96.6%（199/206）患者HPV转阴,未转阴的患者中,HPV的负荷量降低幅度≥50%的患者比率为1.9%（4/206）,高于降幅﹤50%患者的0.1%（2/206）及上升患者的0.4%（1/206）。在治疗后第3个月,54.0%（53/98）感染16型或者包括16型在内的多重感染转阴,与其他高危型感染25.9%（28/108）相比,差异有统计学意义（χ2=4.25,P﹤0.05）;而在治疗后的6、12及24个月,两者比较差异无统计学意义。结论高危型HPV感染的CINⅡ患者在LEEP治疗后多数在2年内转阴,治疗6个月后,16型或者包括16型在内的多重感染与其他高危型感染无差别。