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Debeaudrap P, Sobngwi J, Tebeu PM, Clifford GM. Residual or Recurrent Precancerous Lesions After Treatment of Cervical Lesions in Human Immunodeficiency Virus-infected Women: A Systematic Review and Meta-analysis of Treatment Failure. Clin Infect Dis 2019; 69:1555-1565. [PMID: 30602038 PMCID: PMC6792085 DOI: 10.1093/cid/ciy1123] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 12/29/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Screening and treating premalignant cervical lesions (cervical intraepithelial neoplasia 2+ [CIN2+]) is an effective way to prevent cervical cancer, and recommendations exist for the monitoring of treatment success. Yet, there is no specific recommendation for human immunodeficiency virus (HIV)-infected women, who are at a known, increased risk of cervical cancer. METHODS A systematic review was performed by searching MEDLINE, EMBASE, and Web of Science for studies published from January 1980 through May 2018. Eligible studies described the prevalence of histologically- and/or cytologically-defined lesions in HIV-infected women at least 6 months post-treatment. The primary endpoint was treatment failure, defined as the presence of residual and/or recurrent high-grade CIN2+/high-grade squamous intraepithelial lesions post-treatment. The pooled prevalence in HIV-infected women and the odds ratios (ORs) for HIV-infected compared to HIV-uninfected women were estimated using random-effects models. RESULTS Among 40 eligible studies, the pooled prevalence of treatment failure in HIV-infected women was 21.4% (95% confidence interval [CI] 15.8-27.0). There was no significant difference in the treatment failure prevalence for cryotherapy (13.9%, 95% CI 6.1-21.6) versus loop electrosurgical excision procedure (13.8%, 95% CI 8.9-18.7; P = .9), but the treatment failure prevalence was significantly higher in women with positive (47.2%, 95% CI 22.0-74.0) than with negative (19.4%, 95% CI 11.8-30.2) excision margin (OR 3.4, 95% CI 1.5-7.7). Treatment failure was significantly increased in HIV-infected versus HIV-uninfected women, both overall (OR 2.7, 95% CI 2.0-3.5) and in all sub-group analyses. CONCLUSIONS There is strong evidence for an increased risk of treatment failure in HIV-infected women, in comparison to their HIV-negative counterparts. The only significant predictor of treatment failure in HIV-infected women was a positive margin status, but further data is needed on long-term outcomes after ablative treatment in HIV-infected women.
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Affiliation(s)
- Pierre Debeaudrap
- Centre Population et Développement, Institut de Recherche pour le Développement, Université Paris Descartes, INSERM, France
| | | | - Pierre-Marie Tebeu
- Department of Gynecology, Centre Hospitalier Universitaire of Yaoundé, Cameroon
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé, Cameroon
- Interstates School of Public Heath in Central Africa, Congo, Brazzaville
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Barberis MC, Vago L, Cecchini G, Bramerio M, Banfi G, D'Amico M, Cannone M. Local Impairment of Immunoreactivity in Hiv-infected Women with Hpv-related Squamous Intraepithelial Lesions of the Cervix. TUMORI JOURNAL 2018; 84:489-92. [PMID: 9825002 DOI: 10.1177/030089169808400410] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aims and background The aim of this study was to compare the local immune response in two groups of patients with high-grade cervical intraepithelial squamous lesions (SIL): one with HIV infection and the other with HPV infection alone. Materials and methods 16 conization specimens (8 from HIV-infected and 8 from non-HIV-infected patients) of HPV-related, high-grade SIL were selected. The specimens from non-HIV patients were considered as controls. The total number of Langerhans cells, CD4 and CD8 cells present in 10 field areas (3.120 mm2) was recorded in each case. In HIV patients CD4 and CD8 peripheral counts were performed immediately before surgery. Results The CD4/CD8 ratio never exceeded 0.71, whereas the lowest ratio in controls was 0.81: this difference was statistically significant (P=0.0009). The mean number of Langerhans cells was markedly reduced in the high-grade SILs in the HIV patients in comparison with controls (P=0.001). The number of CD4 cells and the CD4/CD8 ratio correlated with the peripheral CD4 count (P=0.001 and 0.02). Conclusions In our study a marked local impairment of cervical immunoreactivity was observed, which may play a major role in the progression of these lesions in HIV-infected women.
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Affiliation(s)
- M C Barberis
- Diagnostic Laboratories, E. Bernardelli Foundation, Paderno Dugnano, Milan, Italy
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Tate DR, Anderson RJ. Recrudescence of cervical dysplasia among women who are infected with the human immunodeficiency virus: a case-control analysis. Am J Obstet Gynecol 2002; 186:880-2. [PMID: 12015501 DOI: 10.1067/mob.2002.123607] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The purpose of this study was to compare the recurrence rates of cervical dysplasia after ablation therapy and hysterectomy for women who are positive for the human immunodeficiency virus and for women who are negative for the human immunodeficiency virus. STUDY DESIGN Forty-three women who were positive for the human immunodeficiency virus were compared with 103 patients who were negative for the human immunodeficiency virus after cryotherapy, laser ablation, loop electrosurgical excision procedure, conization, and hysterectomy for cervical dysplasia. All patients were followed up for at least 24 months. Patients with preexisting cervical cancer or with positive margins after treatment were excluded. RESULTS Recurrence was higher in the HIV positive group for all modalities (73% vs 27%; P =.019). Higher recurrence rates were seen with CD4 counts <200 cells/mm3 (55% vs 26%). CONCLUSION Hysterectomy fared better than standard therapy (50% vs 86%), but recurrences were significant.
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Affiliation(s)
- Darren R Tate
- Department of Obstetrics and Gynecology, John Peter Smith Hospital, Forth Worth, Tex 76104, USA
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Yen-Moore A, Vander Straten M, Carrasco D, Evans TY, Tyring SK. Cutaneous viral infections in HIV-infected individuals. Clin Dermatol 2000; 18:423-32. [PMID: 11024309 DOI: 10.1016/s0738-081x(99)00137-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- A Yen-Moore
- Department of Dermatology, University of Texas Medical Branch, Galveston, Texas 77555, USA
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GLOBAL EPIDEMIOLOGY OF SEXUALLY TRANSMITTED DISEASES. Sex Transm Dis 2000. [DOI: 10.1016/b978-012663330-6/50002-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Vaginal 5-Fluorouracil for High-Grade Cervical Dysplasia in Human Immunodeficiency Virus Infection. Obstet Gynecol 1999. [DOI: 10.1097/00006250-199912000-00010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Savard J, Miller SM, Mills M, O'Leary A, Harding H, Douglas SD, Mangan CE, Belch R, Winokur A. Association between subjective sleep quality and depression on immunocompetence in low-income women at risk for cervical cancer. Psychosom Med 1999; 61:496-507. [PMID: 10443758 DOI: 10.1097/00006842-199907000-00014] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate whether subjective sleep quality is more strongly associated with immunocompetence than depression among women at risk for cervical cancer. METHODS Participants were 91 women referred for colposcopy because of abnormal results on a Pap smear. On the day of the procedure. participants completed the Center for Epidemiological Studies Depression Scale, two indices of subjective sleep quality (ie, satisfaction with sleep obtained and degree of sleep restfulness), and a health behaviors assessment questionnaire. Levels of peripheral blood lymphocyte subpopulations (helper T, cytotoxic/suppressor T, NK, and B cells) were also assessed at this time. Approximately 10 days later, the presence of depressive disorder was assessed using the Structured Clinical Interview for DSM-III-R. RESULTS Hierarchical regression analyses revealed that satisfaction with the amount of sleep obtained was significantly associated with the circulating number and percentage of helper T cells (T(H)/CD4+) and the percentage of cytotoxic/suppressor T cells (T(C)/CD8+), after controlling for confounder variables (ie, age, smoking status, and drug use). Depression was significantly associated only with the percentage of T(C) cells. Sleep satisfaction remained significantly associated with the number and percentage of T(H) cells and percentage of T(C) cells after controlling for the variance explained by depression. CONCLUSIONS Results of this study suggest that subjective sleep quality shares a significant and independent portion of the variance with immunity that is not accounted for by depression. Although the long-term impact of these immune alterations on disease progression needs to be directly explored, it may be important to systematically screen for and manage sleep disturbance in women at high risk for cervical cancer.
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Affiliation(s)
- J Savard
- Fox Chase Cancer Center, Philadelphia 19012, PA, USA
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Byrnes DM, Antoni MH, Goodkin K, Efantis-Potter J, Asthana D, Simon T, Munajj J, Ironson G, Fletcher MA. Stressful events, pessimism, natural killer cell cytotoxicity, and cytotoxic/suppressor T cells in HIV+ black women at risk for cervical cancer. Psychosom Med 1998; 60:714-22. [PMID: 9847030 DOI: 10.1097/00006842-199811000-00009] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study examines whether stressful negative life events and pessimism were associated with lower natural killer cell cytotoxicity (NKCC) and T cytotoxic/suppressor cell (CD8+CD3+) percentage in black women co-infected with human immunodeficiency virus Type 1 (HIV-1) and human papillomavirus (HPV), a viral initiator of cervical cancer. METHOD Psychosocial interviews, immunological evaluations, and cervical swabs for HPV detection and subtyping were conducted on 36 HIV+ African-American, Haitian, and Caribbean women. RESULTS Greater pessimism was related to lower NKCC and cytotoxic/suppressor cells after controlling for presence/absence of HPV Types 16 or 18, behavioral/lifestyle factors, and subjective impact of negative life events. CONCLUSIONS A pessimistic attitude may be associated with immune decrements, and possibly poorer control over HPV infection and increased risk for future promotion of cervical dysplasia to invasive cervical cancer in HIV+ minority women co-infected with HPV.
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Affiliation(s)
- D M Byrnes
- Department of Psychology, University of Miami, Coral Gables, Florida 33124, USA
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Spinillo A, Capuzzo E, Tenti P, De Santolo A, Piazzi G, Iasci A. Adequacy of screening cervical cytology among human immunodeficiency virus-seropositive women. Gynecol Oncol 1998; 69:109-13. [PMID: 9600816 DOI: 10.1006/gyno.1998.4985] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate the adequacy of cytology in detecting cervical intraepithelial neoplasia (CIN) among human immunodeficiency virus (HIV)-seropositive women compared to controls. METHODS A cross-sectional study was carried out evaluating 241 HIV-seropositive women and 991 controls (404 HIV seronegative and 587 of unknown HIV status) at risk for CIN attending a vaginitis clinic. All patients had a Pap smear and a standard colposcopic examination of the lower genital tract. Cervical biopsies were taken as indicated by colposcopy. Cytology and histology slides were read by a cytopathologist blinded to patients' serostatus. False-negative cytologic cases were reviewed by three independent cytopathologists to estimate sampling and screening error rates. Sensitivity, specificity, and false-negative rate of cytologic smears were compared between HIV seropositives and controls. We estimated the sampling and screening error rates among cases with false-negative cytology. RESULTS Among seropositives, the sensitivity, specificity, and the false-negative smear rate for CIN were 73.4% (47/64), 97.1% (134/138), and 26.6% (17/64), respectively. The corresponding figures in controls were 83.8% (83/99), 99.04% (825/833), and 16.2% (16/99), respectively, and did not differ significantly from those of seropositives. The negative predictive value of cytology was lower among seropositives (134/151) than in controls (825/841, chi2 = 34.8, P < .001). The agreement between cytologic readings and combined colposcopy and histology was stronger among controls (kappa = 0.789, 95% CI 0.723 to 0.856) than among seropositives (kappa = 0. 593, 95% CI 0.475 to 0.712). Three independent cytopathologists were unable to detect atypical cells in 52.9% (9/17) of false-negative smears taken from seropositive women as opposed to 37.5% (6/16) of controls. CONCLUSIONS The sensitivity, specificity, and false negative rate of screening cytology for CIN among HIV seropositive women are comparable with those in the general population. Since almost 50% of false-negative results could be attributed to sampling errors, more frequent cytological screening may prove to be beneficial to this high-risk group.
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Affiliation(s)
- A Spinillo
- Department of Obstetrics and Gynecology, IRCCS Policlinico San Matteo, Pavia, Italy
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Wright TC, Sun XW. Anogenital papillomavirus infection and neoplasia in immunodeficient women. Obstet Gynecol Clin North Am 1996; 23:861-93. [PMID: 8989779 DOI: 10.1016/s0889-8545(05)70280-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This article reviews the impact of infection with human immunodeficiency virus (HIV) on HPV infections and HPV-associated lesions of the female anogenital tract. Studies investigating HPV infections in HIV-seropositive women are presented as well as the possibility that HIV can influence HPV expression directly through molecular interactions between viral genes and indirectly through immunosuppression. Studies linking HIV infection to invasive cervical cancer and cervical intraepithelial neoplasia are reviewed; recommended protocols for cervical cancer screening in HIV-seropositive women for cervical disease also are presented.
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Affiliation(s)
- T C Wright
- Department of Pathology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
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Abstract
HIV infection has been associated with progressive deterioration of the immune system and the development of opportunistic infections and various malignancies. As more experience has been accumulated on the nature and complications of AIDS, the gynecological implications of neoplasia developing in the HIV-positive patient became apparent. A type of cervical malignancy that takes a very aggressive course is being increasingly reported. Other lower genital tract tumors such as vaginal and vulvar neoplasia are also more prevalent in HIV-positive women and a closer follow-up is probably indicated in these patient population. Gestational trophoblastic disease in AIDS patients has also been reported to be more resistant to chemotherapy and may have a grave prognosis. Finally, nongynecological malignancies such as non-Hodgkin's lymphoma (NHL) and Kaposi's sarcoma (KS) may have their first site of appearance in the genital organs, thus simulating gynecological tumors. In this survey, we review the current knowledge accumulated in the English literature, and suggest guidelines for surveillance, diagnosis, and treatment by the practicing gynecologist.
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Affiliation(s)
- N Rojansky
- Department of Obstetrics and Gynecology, Hadassah Hebrew University Medical Center, Ein-Kerem Jerusalem, Israel
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Spinillo A, Tenti P, Baltaro F, Piazzi G, Iasci A, De Santolo A. Cervical intraepithelial neoplasia in pregnant intravenous drug users infected with human immunodeficiency virus type 1. Eur J Obstet Gynecol Reprod Biol 1996; 68:175-8. [PMID: 8886703 DOI: 10.1016/0301-2115(96)02505-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The purpose of this study was to evaluate the frequency and natural history of cervical intraepithelial neoplasia (CIN) during pregnancy in past or current intravenous drug users infected with human immunodeficiency virus type 1 (HIV-1). STUDY DESIGN We prospectively evaluated 48 pregnant HIV-1 seropositive patients and 38 HIV seronegative controls. All the subjects were current or past intravenous drug users. Follow-up visits were carried out each trimester of pregnancy and 8-12 weeks post-partum with Papanicolau smears, colposcopic examinations and, when necessary, colposcopically directed cervical biopsies. RESULTS Thirteen of 48 HIV-seropositive women (27.1%) and three of 38 HIV-seronegative controls (7.9%) (P = 0.027 by Fisher exact test) had biopsy-proven CIN at the beginning of pregnancy. High-grade CIN was detected in 10 cases (20.8%) and in two (5.3%) controls (P = 0.058 by Fisher exact test). None of the cervical squamous intraepithelial lesions progressed throughout pregnancy, in both cases and controls. Post-partum cold-knife cervical conization was performed on seven patients with CIN III and examination of the cone biopsy specimens demonstrated persistence of CIN III. CONCLUSIONS HIV-infected intravenous drug users are at high risk of CIN during pregnancy, thus requiring adequate screening programs. Our preliminary data suggest that the progression rate of CIN during gestation is low in this high-risk group.
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Affiliation(s)
- A Spinillo
- Department of Obstetrics and Gynecology, University of Pavia, IRCCS Policlinico S. Matteo, Italy
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Rosini S, Caltagirone S, Tallini G, Lattanzio G, Demopoulos R, Piantelli M, Musiani P. Depletion of stromal and intraepithelial antigen-presenting cells in cervical neoplasia in human immunodeficiency virus infection. Hum Pathol 1996; 27:834-8. [PMID: 8760019 DOI: 10.1016/s0046-8177(96)90458-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Human immunodeficiency virus-positive (HIV+) women have an increased risk of lower genital tract dysplasia and neoplasia, and studies of the central lymphoid system suggest that impaired immunosurveillance plays a role in the development of their cervical tumors. Intraepithelial and stromal immunocompetent cell counts were compared in cervical specimens from 50 HIV+ and 50 appropriately matched HIV-women (controls) with low and high grade squamous intraepithelial lesions (SIL), or carcinoma. Each histological class of HIV+ women displayed fewer intraepithelial Langerhans' (S100+) cells (LC) (as already known), and also fewer stromal LC and both intraepithelial and stromal (CD68+) macrophages. LC and macrophages were reduced in all HIV+ patients, whereas reduction of cervical T lymphocytes was found in only immunocompromised subjects (peripheral blood CD4+ T-cell count < 500/microL). A mucosal quantitative deficiency of antigen-presenting cells (APC) thus precedes that of T cells. HIV infection appears to lead to early impairment of mucosal immunoreactivity mainly because of defective antigen presentation. This impairment may be one mechanism underlying the increased frequency of cervical dysplasia/neoplasia, and the enhanced aggressiveness of invasive cancers in HIV+ women.
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Affiliation(s)
- S Rosini
- Department of Pathology, G. D'Annunzio University, Chieti, Italy
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Spinillo A, Tenti P, Rao S, Zappatore R, Romagnoli S, Pizzoli G. Nucleolar organizer regions and cervical intraepithelial neoplasia among women with human immunodeficiency virus infection. Am J Obstet Gynecol 1994; 171:773-7. [PMID: 8092228 DOI: 10.1016/0002-9378(94)90096-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Our purpose was to evaluate the proliferative activity of cervical intraepithelial neoplasia lesions in human immunodeficiency virus-seropositive women. STUDY DESIGN The proliferative activity of cervical intraepithelial neoplasia lesions was measured by nucleolar organizer regions-associated proteins count. Twenty-two biopsy specimens of cervical intraepithelial neoplasia lesions from patients positive for human immunodeficiency virus were compared with 22 matched biopsy specimens obtained from controls negative for the virus. RESULTS The mean count of nucleolar organizer regions-associated proteins per cell was 9.5 +/- 3.7 (SD) in human immunodeficiency virus-positive patients and 7.6 +/- 2.8 in human immunodeficiency virus-negative controls (p < 0.0001 by Poisson test of heterogeneity of counts). The difference in counts between the two groups, which was confirmed by log-linear analysis, persisted within each severity stratum of cervical intraepithelial neoplasia and was independent of associated human papillomavirus infection. In human immunodeficiency virus-positive patients log-linear analysis showed that high-grade cervical intraepithelial neoplasia, the presence of human papillomavirus infection, and the severity of human immunodeficiency virus disease were independently correlated with increased nucleolar organizer regions-associated protein counts per cell. CONCLUSION The results of this study indicate that the proliferative activity of cervical intraepithelial neoplasia lesions of human immunodeficiency virus-positive patients was increased compared with matched lesions from human immunodeficiency virus-negative women. This finding suggests the possibility of an increased oncogenic progression of cervical intraepithelial neoplasia lesions in human immunodeficiency virus-positive patients.
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Affiliation(s)
- A Spinillo
- Istituti di Clinica Ostetrica e Ginecologica and Anatomia Patologica, Università di Pavia, Policlinico S. Matteo, Italy
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Fruchter RG, Maiman M, Sillman FH, Camilien L, Webber CA, Kim DS. Characteristics of cervical intraepithelial neoplasia in women infected with the human immunodeficiency virus. Am J Obstet Gynecol 1994; 171:531-7. [PMID: 8059836 DOI: 10.1016/0002-9378(94)90294-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Our purpose was to compare characteristics of cervical intraepithelial neoplasia in relation to human immunodeficiency virus infection among women referred to a public hospital colposcopy clinic with Papanicolaou smears showing cervical intraepithelial neoplasia. STUDY DESIGN An evaluation of cervical intraepithelial neoplasia severity, lesion size, and vulvovaginal lesions with respect to human immunodeficiency virus status was performed. RESULTS (1) Human immunodeficiency virus prevalence in 482 women with cytologic characteristics of cervical intraepithelial neoplasia was 13%. (2) In human immunodeficiency virus-infected patients, Papanicolaou smears were less adequate for evaluation and correlated less well with histologic findings than in uninfected patients (p < 0.05). (3) Human immunodeficiency virus-infected patients (n = 47) had more advanced cervical intraepithelial neoplasia, larger cervical lesions, and more associated vulvovaginal lesions than human immunodeficiency virus-negative patients (n = 161). In human immunodeficiency virus-positive women, the severity of cervical intraepithelial neoplasia was not associated with age, whereas in human immunodeficiency virus-negative women, increasing severity was significantly associated with increasing age. CONCLUSION High rates of human immunodeficiency virus infection in inner-city colposcopy services and high-grade, extensive cervical lesions in infected women warrant special attention.
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Affiliation(s)
- R G Fruchter
- Department of Obstetrics and Gynecology, State University of New York Health Science Center at Brooklyn 11203
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Abstract
Molecular biologic techniques are having an impact on many different aspects of medicine. In the realm of infectious agents, they are enhancing our diagnostic capabilities, allowing earlier detection of infection, avoiding the need of culturing infectious agents for the purpose of diagnosis, and broadening our concepts to include the presence of infection in the absence of a culturable agent or serologic evidence of infection. As one might expect, the applicability of these techniques varies with the type of infectious agent being considered. For example, in most bacterial infections the infectious agent can be cultured and accurately identified within 48 hours. It is therefore unlikely that molecular diagnostic techniques will replace the "gold standard" of culture in instances of bacterial infection. Mycobacterial and spirochetal agents, by contrast, do not fall into this category. Although the rapid growers (Mycobacterium fortuitum and Mycobacterium chelonae) pose little problem because they can be cultured within 1 week, M. tuberculosis, M. leprae and the slow growing mycobacteriae require long intervals to culture and/or identify. These organisms may in the future be identified with molecular diagnostic techniques. In the group of spirochetal pathogens, Treponema pallidum infection is, for the most part, easily diagnosed with serologic studies. In early seronegative cases, spirochetes can be detected in primary inoculation lesions by darkfield microscopy or in tissue sections with appropriate stains. Conversely, detection of Borrelia burgdorferi is currently fraught with difficulties. Tissue sections stained for these spirochetes are difficult to interpret, and serologic studies have shown widely variable results. The polymerase chain reaction has already been applied to the study of Borrelia infection with encouraging early results.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- C Jaworsky
- Department of Dermatology, University of Pennsylvania, Philadelphia 19026
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