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Suzuki W, Ietani K, Makabe T, Oki S, Ohno A, Mikami Y, Yamashita H. Prognostic outcome of cervical laser ablation using a holmium yttrium-aluminum-garnet (Ho:YAG) laser for the treatment of cervical intraepithelial neoplasia: A single-center retrospective study. Gynecol Oncol Rep 2024; 53:101405. [PMID: 38757116 PMCID: PMC11096838 DOI: 10.1016/j.gore.2024.101405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/19/2024] [Accepted: 04/28/2024] [Indexed: 05/18/2024] Open
Abstract
Objective Although cervical conization is considered a standard treatment for cervical intraepithelial neoplasia (CIN) 2/3, laser ablation can compensate for the disadvantages of the former. CO2, semiconductor, and holmium yttrium-aluminum-garnet (Ho:YAG) lasers are applied in ablation, but no previous studies have shown the effectiveness of any of these techniques. Here, we retrospectively analyzed the application of the Ho:YAG laser in our hospital to verify its efficacy, and discussed the methods for optimal recurrence detection. Methods We evaluated the recurrence rates of the pathological condition in patients who underwent laser ablation with a Ho:YAG laser for CIN2/3 at our institution from June 2012 to November 2021. We defined the recurrence as histologically confirmed CIN2 or more advanced stage. Age, preoperative diagnosis, human papillomavirus (HPV) genotype, and postoperative high-risk HPV status were recorded to establish their association with recurrence rates. Results We performed surgery in 607 patients and the 2-year recurrence rate after interventions was 5.6%. Five patients were diagnosed with invasive cancer at the time of recurrence. Older age significantly correlated with higher risk of recurrence, but preoperative CIN grade and preoperative HPV 16/18 status did not significantly affect it. The postoperative high-risk HPV test was 100% sensitive for detecting recurrence. Conclusions Laser ablation with the Ho:YAG laser yields promising results. Together with postinterventional management, high-risk HPV test after laser ablation should be conducted after diagnostic conization.This study received the approval from the Ethics Committee of the NHO Tokyo Medical Center (Ethics Committee approval number: R22-067).
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Affiliation(s)
- Wataru Suzuki
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Kana Ietani
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Takeshi Makabe
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Shinya Oki
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Akiko Ohno
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Yoshiko Mikami
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
| | - Hiroshi Yamashita
- Department of Obstetrics and Gynecology, NHO Tokyo Medical Center, Japan
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2
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Ahmed K, Jha S. Oncoviruses: How do they hijack their host and current treatment regimes. Biochim Biophys Acta Rev Cancer 2023; 1878:188960. [PMID: 37507056 DOI: 10.1016/j.bbcan.2023.188960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/05/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Viruses have the ability to modulate the cellular machinery of their host to ensure their survival. While humans encounter numerous viruses daily, only a select few can lead to disease progression. Some of these viruses can amplify cancer-related traits, particularly when coupled with factors like immunosuppression and co-carcinogens. The global burden of cancer development resulting from viral infections is approximately 12%, and it arises as an unfortunate consequence of persistent infections that cause chronic inflammation, genomic instability from viral genome integration, and dysregulation of tumor suppressor genes and host oncogenes involved in normal cell growth. This review provides an in-depth discussion of oncoviruses and their strategies for hijacking the host's cellular machinery to induce cancer. It delves into how viral oncogenes drive tumorigenesis by targeting key cell signaling pathways. Additionally, the review discusses current therapeutic approaches that have been approved or are undergoing clinical trials to combat malignancies induced by oncoviruses. Understanding the intricate interactions between viruses and host cells can lead to the development of more effective treatments for virus-induced cancers.
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Affiliation(s)
- Kainat Ahmed
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078, USA
| | - Sudhakar Jha
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK 74078, USA.
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3
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Di Salvo I, Mnzava D, Nicoletti GJ, Senkoro E, Ndege RC, Huang DJ, Makunja NT, Kassiga GI, Kaufmann AM, Weisser M, Kind AB. Upscaling cervical cancer screening and treatment for women living with HIV at a rural referral hospital in Tanzania: protocol of a before-and-after study exploring HPV testing and novel diagnostics. BMC Health Serv Res 2023; 23:234. [PMID: 36894985 PMCID: PMC9998252 DOI: 10.1186/s12913-023-09113-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 01/26/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Cervical cancer (CC) is nearly always caused by persistent human papillomavirus (HPV) infection. It is the most common cancer among women living with HIV (WLWH) and is the leading cause of cancer-related death in women in East Africa, with 10,241 new cases reported in Tanzania in 2020. In 2019, the World Health Organization (WHO) presented a global strategy for the elimination of CC as a public health problem, proposing targets to meet by 2030 for HPV vaccine coverage (90% of all 15-year-old girls), CC screening (70% of all women once at 35 and again at 45 years of age) and treatment delivery, to be scaled at national and subnational levels with a context-sensitive approach. This study aims to evaluate the upscaling of screening and treatment services at a rural referral hospital in Tanzania in order to address the second and third WHO targets. METHODS This is an implementation study with a before-and-after design performed at St. Francis Referral Hospital (SFRH) in Ifakara (south-central Tanzania). CC screening and treatment services are integrated within the local HIV Care and Treatment Center (CTC). The standard of care, consisting of visualization of the cervix with acetic acid (VIA) and cryotherapy has been up-scaled with self-sampled HPV testing and also involved the introduction of mobile colposcopy, thermal ablation and loop electrosurgical excision procedure (LEEP). Participants are WLWH aged 18 to 65 years. Outcome measures included the percentage of women screened, HPV prevalence and genotype, and adherence to screening, treatment and follow-up plan. Additionally, we will explore the performance of novel diagnostic tests (QG-MPH®, Prevo-Check® and PT Monitor®), which share the features of being manageable and inexpensive, and thus a potential tool for effective triage in HPV high-prevalence cohorts. DISCUSSION The study will provide relevant information about HPV prevalence and persistence, as well as reproductive and lifestyle indicators in a CC high-risk cohort of WLWH and about upscaling screening and treatment services at the level of a rural referral hospital in Tanzania. Furthermore, it will provide exploratory data on novel assays. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT05256862, date of registration 25/02/2022. Retrospectively registered.
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Affiliation(s)
- Ivana Di Salvo
- Colposcopy Unit, Department of Gynaecology and Gynaecologic Oncology, University Hospital of Basel, Spitalstrasse 21, Basel, 4031, Switzerland.,Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania.,Department of Medicine, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Dorcas Mnzava
- Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania
| | - Giovanni Jacopo Nicoletti
- Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania.,Department of Medicine, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Elizabeth Senkoro
- Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania.,Saint Francis Referral Hospital, Ifakara, Tanzania
| | - Robert C Ndege
- Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania.,Saint Francis Referral Hospital, Ifakara, Tanzania
| | - Dorothy J Huang
- Colposcopy Unit, Department of Gynaecology and Gynaecologic Oncology, University Hospital of Basel, Spitalstrasse 21, Basel, 4031, Switzerland
| | - Nathalia Tobias Makunja
- Saint Francis Referral Hospital, Ifakara, Tanzania.,Department of Obstetrics and Gynecology, St. Francis Referral District Hospital, Ifakara, Tanzania
| | - George I Kassiga
- Saint Francis Referral Hospital, Ifakara, Tanzania.,Department of Obstetrics and Gynecology, St. Francis Referral District Hospital, Ifakara, Tanzania
| | - Andreas M Kaufmann
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Gynaecology, HPV Laboratory, Berlin, Germany
| | - Maja Weisser
- Chronic Disease Clinic, Department for Interventions and Clinical Trials, Ifakara Health Institute, Ifakara, United Republic of Tanzania.,University of Basel, Basel, Switzerland.,Department of Infectious Diseases & Hospital Epidemiology, University Hospital of Basel, Basel, Switzerland
| | - André B Kind
- Colposcopy Unit, Department of Gynaecology and Gynaecologic Oncology, University Hospital of Basel, Spitalstrasse 21, Basel, 4031, Switzerland. .,University of Basel, Basel, Switzerland.
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4
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Macios A, Nowakowski A. False Negative Results in Cervical Cancer Screening-Risks, Reasons and Implications for Clinical Practice and Public Health. Diagnostics (Basel) 2022; 12:1508. [PMID: 35741319 PMCID: PMC9222017 DOI: 10.3390/diagnostics12061508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/06/2022] [Accepted: 06/13/2022] [Indexed: 11/17/2022] Open
Abstract
False negative (FN) results in cervical cancer (CC) screening pose serious risks to women. We present a comprehensive literature review on the risks and reasons of obtaining the FN results of primary CC screening tests and triage methods and discuss their clinical and public health impact and implications. Misinterpretation or true lack of abnormalities on a slide are the reasons of FN results in cytology and p16/Ki-67 dual-staining. For high-risk human papillomavirus (HPV) molecular tests, those include: truly non-HPV-associated tumors, lesions driven by low-risk HPV types, and clearance of HPV genetic material before sampling. Imprecise disease threshold definition lead to FN results in visual inspection with acetic acid. Lesions with a discrete colposcopic appearance are a source of FN in colposcopic procedures. For FAM19A4 and hsa-miR124-2 genes methylation, those may originate from borderline methylation levels. Histological misinterpretation, sampling, and laboratory errors also play a role in all types of CC screening, as well as reproducibility issue, especially in methods based on human-eye evaluation. Primary HPV-based screening combined with high quality-assured immunocytochemical and molecular triage methods seem to be an optimal approach. Colposcopy with histological evaluation remains the gold standard for diagnosis but requires quality protocols and assurance measures.
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Affiliation(s)
- Anna Macios
- Doctoral School of Translational Medicine, Centre of Postgraduate Medical Education, Marymoncka Street 99/103, 01-813 Warsaw, Poland
- Department of Cancer Prevention, The Maria Sklodowska-Curie National Research Institute of Oncology, Roentgen Street 5, 02-781 Warsaw, Poland
| | - Andrzej Nowakowski
- Department of Cancer Prevention, The Maria Sklodowska-Curie National Research Institute of Oncology, Roentgen Street 5, 02-781 Warsaw, Poland
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5
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Khairkhah N, Bolhassani A, Najafipour R. Current and future direction in treatment of HPV-related cervical disease. J Mol Med (Berl) 2022; 100:829-845. [PMID: 35478255 PMCID: PMC9045016 DOI: 10.1007/s00109-022-02199-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/24/2022] [Accepted: 04/08/2022] [Indexed: 02/06/2023]
Abstract
Human papillomavirus (HPV) is the most common sexually transmitted virus in the world. About 70% of cervical cancers are caused by the most oncogenic HPV genotypes of 16 and 18. Since available prophylactic vaccines do not induce immunity in those with established HPV infections, the development of therapeutic HPV vaccines using E6 and E7 oncogenes, or both as the target antigens remains essential. Also, knocking out the E6 and E7 oncogenes in host genome by genome-editing CRISPR/Cas system can result in tumor growth suppression. These methods have shown promising results in both preclinical and clinical trials and can be used for controlling the progression of HPV-related cervical diseases. This comprehensive review will detail the current treatment of HPV-related cervical precancerous and cancerous diseases. We also reviewed the future direction of treatment including different kinds of therapeutic methods and vaccines, genome-editing CRISPR/Cas system being studied in clinical trials. Although the progress in the development of therapeutic HPV vaccine has been slow, encouraging results from recent trials showed vaccine-induced regression in high-grade CIN lesions. CRISPR/Cas genome-editing system is also a promising strategy for HPV cancer therapy. However, its safety and specificity need to be optimized before it is used in clinical setting.
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Affiliation(s)
- Niloofar Khairkhah
- Department of Molecular Medicine, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.,Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran.
| | - Reza Najafipour
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
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6
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Chou B, Prasad Venkatesulu B, Coleman RL, Harkenrider M, Small Jr W. Management of stage I and II cervical cancer: a review. Int J Gynecol Cancer 2022; 32:216-224. [DOI: 10.1136/ijgc-2021-002527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/13/2022] [Indexed: 11/04/2022] Open
Abstract
In the modern era, cervical cancer treatment has become more multidisciplinary in nature. Accurate and precise staging based on clinical and radiographic findings, as well as identification of pathologic and molecular risk factors, may alter treatment recommendations. Additionally, the body of evidence guiding optimal treatment recommendations continues to grow. Multiple specialists including gynecologic oncologists, radiation oncologists, medical oncologists, radiologists, pathologists, and other ancillary staff, often with subspecialty experience in gynecology or cancer care, now staff multidisciplinary gynecologic oncology teams. This review highlights the basis of multidisciplinary treatment of early-stage cervical cancer, with a focus on surgical interventions, the role of adjuvant therapy, and indications for definitive chemoradiation. We specifically focus on the treatment of cervical cancer from stage IA1 (microinvasive disease) to stage IIB (parametrial involvement without involvement of pelvic sidewall). The staging manuals referenced in this review include the International Federation of Gynecology and Obstetrics (FIGO) 2018 staging as well as the updated American Joint Committee on Cancer (AJCC) 9th edition (2021).
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7
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Armstrong GM, Ragupathy K. Test of cure and beyond: superiority of thermal ablation over LLETZ in the treatment of high-grade CIN. Arch Gynecol Obstet 2022; 306:1815-1820. [PMID: 35107616 PMCID: PMC9519675 DOI: 10.1007/s00404-022-06409-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/12/2022] [Indexed: 11/26/2022]
Abstract
Purpose Among the treatment modalities for high-grade cervical intraepithelial neoplasia (CIN), large-loop excision of the transformation zone (LLETZ) is the commonest offered in the UK, whereas thermal ablation (TA) has not been common in several decades, despite several notable advantages. TA and LLETZ are both routinely undertaken in our colposcopy unit, and extensive follow-up data have been used to interrogate outcomes between the two modalities and determine whether one modality may be preferred over the other. Methods Up to 8 years of follow-up data (cytology and histology) were collected for patients who have undergone LLETZ or TA and failed post-treatment test of cure (ToC). These data were analysed and used to plot Kaplan–Meier survival curves, in order to compare outcomes: negative cytology, dyskaryosis, low- and high-grade CIN and invasive squamous cell carcinoma. Results i) Very few women treated with TA developed recurrent high-grade CIN in the follow-up period; (ii) LLETZ-treated women had a significantly higher rate of recurrence than those treated by TA; (iii) women who failed both virology and cytology components of post-treatment ToC had higher recurrence than those who failed only one, and the rate of recurrence was highest in those treated by LLETZ (> 65%). Conclusion TA is an effective treatment of high-grade CIN, with a high chance of achieving double-negative ToC and low recurrence relative to LLETZ. We recommend the wider adoption of TA, so that young women of reproductive age have a choice of treatment with no reported adverse effects on pregnancy outcomes.
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Affiliation(s)
| | - K Ragupathy
- Obstetrics and Gynaecology Department, NHS Tayside, Ninewells Hospital, Dundee, UK
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8
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Andersson S, Megyessi D, Belkić K, Alder S, Östensson E, Mints M. Age, margin status, high-risk human papillomavirus and cytology independently predict recurrent high-grade cervical intraepithelial neoplasia up to 6 years after treatment. Oncol Lett 2021; 22:684. [PMID: 34434283 PMCID: PMC8335741 DOI: 10.3892/ol.2021.12945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 06/24/2021] [Indexed: 12/24/2022] Open
Abstract
The present study aimed to identify the factors that independently contribute to disease recurrence among women first-time treated for high-grade cervical intraepithelial neoplasia (CIN) during 4–6 years of follow-up. Overall, 529 of 530 eligible patients participated; these patients all attended a 1st follow-up appointment ~6 months post-conization, at which time high-risk human-papillomavirus (HPV) testing, liquid-based cytology and colposcopy were performed. Full data on margin excision status, other aspects of initial treatment and comorbidity were obtained. At least one subsequent follow-up was attended by 88% of patients. A total of 22 recurrent cases were detected during follow-up. Detected recurrence was the outcome of focus for multiple logistic regression analysis, with odds ratios (OR) and 95% confidence intervals (CI) computed. Four significant independent risk factors were identified: Age 45 years or above (OR=3.5, 95% CI=1.3–9.9), one or both unclear or uncertain margins (OR=5.3, 95% CI=2.0–14.2), positive HPV at 1st follow-up (OR=5.8, 95% CI=2.0–16.8), and abnormal cytology at 1st follow-up (OR=3.9, 95% CI=1.4–11.0). Bivariate analysis revealed that persistent HPV positivity was associated with recurrence (P<0.01). These findings indicated that incomplete excision of the CIN lesion may warrant more intensive subsequent screening, regardless of early post-conization HPV findings. Although early post-conization positive HPV was a powerful, independent predictor of recurrent high-grade CIN, over one-third of the patients with detected recurrence had a negative early post-conization HPV finding. These patients returned for routine screening, at which time, in most cases, HPV status was positive, thus indicating the need for repeated HPV evaluation. Especially during the on-going pandemic, home vaginal self-sampling is recommended. Particular attention is required for women aged ≥45 years. In addition, although not statistically significant, relevant comorbidities, especially autoimmune conditions, warrant consideration in clinical decision-making. Women who have been treated for high-grade CIN are at risk for recurrent disease and progression to cervical cancer; therefore, they require careful, individualized follow-up to avoid these adverse consequences.
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Affiliation(s)
- Sonia Andersson
- Department of Women's and Children's Health, Obstetrics-Gynecology Division, Karolinska Institute, SE-17176 Stockholm, Sweden
| | - David Megyessi
- Department of Women's and Children's Health, Obstetrics-Gynecology Division, Karolinska Institute, SE-17176 Stockholm, Sweden
| | - Karen Belkić
- Department of Oncology-Pathology, Karolinska Institute, SE-17176 Stockholm, Sweden.,School of Community/Global Health, Claremont Graduate University, Claremont, CA 91711, USA.,Institute for Health Promotion & Disease Prevention Research, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Susanna Alder
- Department of Women's and Children's Health, Obstetrics-Gynecology Division, Karolinska Institute, SE-17176 Stockholm, Sweden
| | - Ellinor Östensson
- Department of Women's and Children's Health, Obstetrics-Gynecology Division, Karolinska Institute, SE-17176 Stockholm, Sweden
| | - Miriam Mints
- Department of Women's and Children's Health, Obstetrics-Gynecology Division, Karolinska Institute, SE-17176 Stockholm, Sweden.,School of Medical Sciences, Faculty of Medicine-Health, Örebrö University, SE-70182 Örebrö, Sweden
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9
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Vieira MDA, de Araújo RLC, da Cunha Andrade CEM, Schmidt RL, Filho AL, dos Reis R. A randomized clinical trial of a new anti-cervical stenosis device after conization by loop electrosurgical excision. PLoS One 2021; 16:e0242067. [PMID: 33471788 PMCID: PMC7816995 DOI: 10.1371/journal.pone.0242067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/26/2020] [Indexed: 11/25/2022] Open
Abstract
Background The complications inherent to conization include vaginal bleeding, cervical stenosis, amenorrhea, dysmenorrhea, and deep dyspareunia. Cervical stenosis is the most important complication due to the clinical repercussions. Studies show rates of cervical stenosis ranging from 1.3 to 19% after the Loop Electrosurgical Excision Procedure (LEEP). Objective Our primary outcome was to compare the role of a new endocervical device to prevent cervical stenosis after LEEP in patients with high-grade squamous intraepithelial lesions (HSILs). Methods A randomized clinical trial was performed including phases II and III for evaluation of a new device for cervical stenosis prevention. In Phase II, we included 25 patients who underwent LEEP and placement of the device to assess its toxicity and efficacy. In phase III, we compared two groups (with and without the use of an anti-stenosis device) to evaluate its efficacy and safety. Results From August 2015 to June 2018, 265 participants were randomized (Phase II: 25, Phase III: 120 with DUDA and 120 without DUDA). The toxicity during phase II was observed in only one patient (4%) with pain grade > 7. There were 7 cases of toxicity during Phase III, 2 in the DUDA group (1.8%), and 5 in the No DUDA group (4.5%). The complications rate was numerically higher in the No DUDA group (2.5x higher) than the DUDA group, but this difference did not reach statistical significance (p = 0.52). The rate of cervical stenosis in DUDA group was (4–7,3%), and in No DUDA group was (4.3–5.8%) (p = 0.5). We did not find a significant difference when comparing the evolution at 3, 6, and 12 months in terms of cervical patency and visualization of the squamocolumnar junction (SCJ) during colposcopy. The DUDA group exhibited 15% to 19% nonvisualization of the SCJ, whereas that rate ranged from 10 to 12% in the No DUDA group. Conclusions The rate of cervical stenosis was not different comparing the use of a new device, specifically produced to prevent cervical stenosis, compared to no use after LEEP procedure. This clinical trial opens up space for a discussion of the utility of using cervical stenosis devices after LEEP. Perhaps in another type of conization it can be evaluated to avoid cervical stenosis.
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Affiliation(s)
| | | | | | - Ronaldo Luis Schmidt
- Department of Gynecologic Oncology, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Agnaldo Lopes Filho
- Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo dos Reis
- Department of Gynecologic Oncology, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
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10
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Kato M, Onoyama I, Kawakami M, Yoshida S, Kawamura K, Kodama K, Hori E, Cui L, Matsumura Y, Yagi H, Asanoma K, Yahata H, Itakura A, Takeda S, Kato K. Downregulation of 5-hydroxymethylcytosine is associated with the progression of cervical intraepithelial neoplasia. PLoS One 2020; 15:e0241482. [PMID: 33141854 PMCID: PMC7608920 DOI: 10.1371/journal.pone.0241482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 10/16/2020] [Indexed: 12/20/2022] Open
Abstract
Around the world, cervical cancer is one of the most common neoplastic diseases among women, and the prognosis of patients in an advanced stage remains poor. To reduce the mortality rate of cervical cancer, early diagnosis and treatment are essential. DNA methylation is an important aspect of gene regulation, and aberrant DNA methylation contributes to carcinogenesis and cancer progression in various cancers. Although 5-methylcytosine (5mC) has been analyzed intensively, the function of 5-hydroxymethylcytosine (5hmC) has not been clarified. The purpose of our study was to identify the molecular biomarkers for early diagnosis of cervical tumors due to epigenetic alterations. To assess the clinical relevance of DNA methylation, we used immunohistochemistry (IHC) to characterize the level of 5hmC in 102 archived human cervical intraepithelial neoplasia (CIN) samples and cervical cancer specimens. The level of 5hmC was significantly decreased between CIN2 and CIN3. The progression of cervical tumors is caused by a reduction of TP53 and RB1 because of HPV infection. We observed that Tp53 and Rb1 were knocked down in mouse embryonic fibroblasts (MEF), a model of normal cells. The level of 5hmC was reduced in Tp53-knockdown cells, and the expression levels of DNA methyltransferase 1 (DNMT1) and ten-eleven translocation methylcytosine dioxygenase 1 (TET1) were induced. In contrast, there was no significant change in Rb1-knockdown cells. Mechanistically, we focused on apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like (APOBEC) 3B (A3B) as a cause of 5hmC reduction after TP53 knockdown. In the human cell line HHUA with a wild-type TP53 gene, A3B was induced in TP53-knockdown cells, and A3B knockdown recovered 5hmC levels in TP53-knockdown cells. These data indicate that TP53 suppression leads to 5hmC reduction in part through A3B induction. Moreover, IHC showed that expression levels of A3B in CIN3 were significantly higher than those in both normal epithelium and in CIN2. In conclusion, 5hmC levels are decreased between CIN2 and CIN3 through the TP53-A3B pathway. Since A3B could impair genome stability, 5hmC loss might increase the chances of accumulating mutations and of progressing from CIN3 to cervical cancer. Thus, these epigenetic changes could predict whether CINs are progressing to cancer or disappearing.
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Affiliation(s)
- Masaya Kato
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Obstetrics and Gynecology, School of Medical Sciences, Juntendo University, Tokyo, Japan
| | - Ichiro Onoyama
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
- * E-mail:
| | - Minoru Kawakami
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Sachiko Yoshida
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Kawamura
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keisuke Kodama
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Emiko Hori
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Lin Cui
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yumiko Matsumura
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Yagi
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuo Asanoma
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hideaki Yahata
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsuo Itakura
- Department of Obstetrics and Gynecology, School of Medical Sciences, Juntendo University, Tokyo, Japan
| | - Satoru Takeda
- Department of Obstetrics and Gynecology, School of Medical Sciences, Juntendo University, Tokyo, Japan
| | - Kiyoko Kato
- Department of Obstetrics and Gynecology, School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Selçuk İ, Ersak B, Umaroğlu M, Özel Ş, Yalçın H, Üstün Y, Engin-Üstün Y. The impact of Loop Electrosurgical Excision Procedure and cold-knife conization training model on the surgical skills and confidence level. Turk J Obstet Gynecol 2020; 17:133-138. [PMID: 32850189 PMCID: PMC7406894 DOI: 10.4274/tjod.galenos.2020.25675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 03/19/2020] [Indexed: 12/01/2022] Open
Abstract
Objective The purpose of this study is to evaluate the impact of loop electrosurgical excision procedure (LEEP) and cold-knife conization (CKC) active training model on the surgical education and confidence levels of gynecologists. Materials and Methods The LEEP and CKC hands-on training model consists of sausage, which is 2.5 cm in diameter, as cervix; plastic cup as vagina; foam rubber as posterior and anterior fornices; and cotton plate as the leukoplakia area. In total, 34 participants performed LEEP and CKC procedures on the training model under the guidance of mentors after theoretical lessons about the transformation zone, indications, and surgical techniques of LEEP and CKC. Afterward, a web-based survey was conducted to measure the effectiveness of this surgical model, and participants graded their learning and confidence levels on the same. Results We evaluated the educational levels of the course, which were based on the basic surgical steps of LEEP and CKC procedures, and the confidence levels of the participants with regard to the previous practice or expertise of LEEP and CKC. Importantly, participants in each group had similar learning gains irrespective of previous practice or expertise. Despite a significantly higher pre-course confidence level of participants who had previously performed LEEP (p<0.001) and CKC (p<0.001) against their non-practitioner counterparts, the post-course confidence levels were similar in each group (p=0.127 and p=0.845, respectively). In both groups, the participants had increased mean confidence scores, which were statistically significant for participants who had not previously performed the procedures (p=0.003, LEEP and p=0.002, CKC, respectively). Conclusion This surgical training model on LEEP and CKC can impart a better level of education in participants, irrespective of their previous expertise/practice.
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Affiliation(s)
- İlker Selçuk
- University of Health Sciences Turkey, Zekai Tahir Burak Woman's Health Training and Research Hospital, Clinic of Gynecologic Oncology, Ankara, Turkey
| | - Burak Ersak
- University of Health Sciences Turkey, Zekai Tahir Burak Woman's Health Training and Research Hospital, Clinic of Gynecology, Ankara, Turkey
| | - Mutlu Umaroğlu
- Hacettepe University Faculty of Medicine, Department of Bio-Statistics, Ankara, Turkey
| | - Şule Özel
- University of Health Sciences Turkey, Zekai Tahir Burak Woman's Health Training and Research Hospital, Clinic of Gynecology, Ankara, Turkey
| | - Hakan Yalçın
- University of Health Sciences Turkey, Zekai Tahir Burak Woman's Health Training and Research Hospital, Clinic of Gynecologic Oncology, Ankara, Turkey
| | - Yusuf Üstün
- University of Health Sciences Turkey, Ankara Training and Research Hospital, Clinic of Gynecology, Ankara, Turkey
| | - Yaprak Engin-Üstün
- University of Health Sciences Turkey, Zekai Tahir Burak Woman's Health Training and Research Hospital, Clinic of Gynecology, Ankara, Turkey
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del Pino M, Martí C, Torras I, Henere C, Munmany M, Marimon L, Saco A, Torné A, Ordi J. HPV Vaccination as Adjuvant to Conization in Women with Cervical Intraepithelial Neoplasia: A Study under Real-Life Conditions. Vaccines (Basel) 2020; 8:E245. [PMID: 32456136 PMCID: PMC7349984 DOI: 10.3390/vaccines8020245] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/15/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Recent studies have shown preliminary evidence that vaccination against human papillomavirus (HPV) could decrease the risk of persistent/recurrent HSIL in women treated for high-grade cervical intraepithelial lesion (HSIL). We aimed to determine the benefits of HPV vaccination in patients undergoing conization for HSIL in real-life conditions and evaluate vaccination compliance associated with different funding policies. Methods: From January 2013 to July 2018, 265 women underwent conization in our center. From January 2013 to July 2017, treated patients (n = 131) had to pay for the vaccine, whereas after July 2017 the vaccine was publicly funded and free for treated women (n = 134). Post-conization follow-up controls were scheduled every six months with a Pap smear, HPV testing, and a colposcopy. Results: 153 (57.7%) women accepted vaccination (vaccinated group), and 112 (42.3%) refused the vaccine (non-vaccinated group). Persistent/recurrent HSIL was less frequent in vaccinated than in non-vaccinated women (3.3% vs. 10.7%, p = 0.015). HPV vaccination was associated with a reduced risk of persistent/recurrent HSIL (OR 0.2, 95%CI: 0.1-0.7, p = 0.010). Vaccination compliance increased when the vaccine was publicly funded (from 35.9% [47/131] to 79.1% [106/134], p < 0.001). Conclusions: HPV vaccination in women undergoing conization is associated with a 4.5-fold reduction in the risk of persistent/recurrent HSIL. Vaccination policies have an important impact on vaccination compliance.
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Affiliation(s)
- Marta del Pino
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, 08036 Barcelona, Spain
| | - Cristina Martí
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
| | - Ines Torras
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
| | - Carla Henere
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
| | - Meritxell Munmany
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
| | - Lorena Marimon
- Department of Pathology, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain; (L.M.); (A.S.); (J.O.)
| | - Adela Saco
- Department of Pathology, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain; (L.M.); (A.S.); (J.O.)
| | - Aureli Torné
- Institute Clinic of Gynecology, Obstetrics, and Neonatology, Hospital Clínic, 08036 Barcelona, Spain; (C.M.); (I.T.); (C.H.); (M.M.); (A.T.)
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, 08036 Barcelona, Spain
| | - Jaume Ordi
- Department of Pathology, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain; (L.M.); (A.S.); (J.O.)
- Institute for Global Health (ISGlobal), Hospital Clínic, Universitat de Barcelona, 08036 Barcelona, Spain
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Hurtado-Roca Y, Becerra-Chauca N, Malca M. Efficacy and safety of cryotherapy, cold cone or thermocoagulation compared to LEEP as a therapy for cervical intraepithelial neoplasia: Systematic review. Rev Saude Publica 2020; 54:27. [PMID: 32187314 PMCID: PMC7063859 DOI: 10.11606/s1518-8787.2020054001750] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 08/13/2019] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES To determine the efficacy and safety of the use of cryotherapy, cold knife or thermocoagulation compared to Loop Electrosurgical Excision Procedure (LEEP) for the treatment of cervical intraepithelial neoplasia. METHODS Systematic review with meta-analysis of randomized controlled trials in women with cervical intraepithelial neoplasia undergoing treatment with cryotherapy, cold knife, or thermo-coagulation compared with LEEP, to estimate its efficacy and safety. The search was conducted on MEDLINE/PUBMED, Cochrane Central Register of Controlled Trials (CENTRAL) and Scopus, until September 2018. RESULTS The total of 72 studies were identified, of which only 8 studies met the inclusion criteria. The treatment of CIN with cold knife decreases the risk of residual disease compared with LEEP (RR, 0.54, 95%CI, 0.30-0.96, p = 0.04). The management of premalignant lesions with cryotherapy, compared with LEEP, increases the risk of disease recurrence by 86% (RR, 1.86, 95%CI, 1.16-2.97, p = 0.01), increases the risk of infections (RR, 1.17, 95%CI, 1.08-1.28, p < 0.001) and reduces the risk of minor bleeding by 51% (RR, 0.49, 95%CI) %, 0.40-0.59, p ≤ 0.001). CONCLUSIONS The treatment of premalignant lesions of cervical cancer with cold knife reduces the risk of residual disease. Nevertheless, cryotherapy reduces the risk of minor bleeding in the 24 hours after treatment and increases the risk of recurrence of disease and infections.
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Affiliation(s)
- Yamilée Hurtado-Roca
- Instituto de Evaluación de Tecnologías en Salud e Investigación (IETSI), EsSalud . Lima , Perú
| | - Naysha Becerra-Chauca
- Instituto de Evaluación de Tecnologías en Salud e Investigación (IETSI), EsSalud . Lima , Perú
| | - Magaly Malca
- Hospital Rebagliati Martins , Servicio de Ginecología Oncológica , EsSalud . Lima , Perú
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Abstract
Zusammenfassung
Zielstellung
Das CIN2+-/CIN3+(zervikale intraepitheliale Neoplasie)-Risiko plattenepithelialer zytologischer Befunde (Gruppe II‑p, IIID1, III‑p, IIID2 der Münchner Nomenklatur [MN] III) soll bewertet und mit Empfehlungen für das Patienten-Management korreliert werden.
Material und Methoden
Alle 4321 Frauen mit einer Gruppe II‑p, IIID1, III‑p, IIID2, IVa‑p, IVb-p und V‑p von Januar 2014 bis Dezember 2016 wurden in einer Praxis für Pathologie erfasst. Zytologische Vorbefunde, alle zytologischen und histologischen Folgebefunde bis Juli 2019 wurden dokumentiert. Für die Erstbefunde wurde pro Befundgruppe mittels Kaplan-Meier-Schätzung das Risiko für CIN2+/CIN3+ ermittelt. Das Risiko bei persistierenden Befunden und der Einfluss des Alters wurden untersucht.
Ergebnisse
Für die Erstbefunde der Gruppen II‑p, IIID1, III‑p und IIID2 beträgt das Risiko für CIN2+ nach 12, 24 und 60 Monaten 1,0/3,3/11,8; 3,1/9,4/22,7; 33,4/38,4/55,5 bzw. 35,1/46,2/64,4 (%). Das Risiko für CIN3+ beträgt für die gleichen Zeiträume 0,6/2,7/9,7; 1,9/5,2/14,3; 28,8/32,4/44,0 bzw. 28,5/36,7/52,4 (%). Bei persistierenden Befunden derselben Gruppe steigt das Risiko für CIN2+ und CIN3+ signifikant vom ersten zum zweiten II-p‑, IIID1-, III-p- und IIID2-Befund. Bei den Gruppen II‑p, IIID1 und IIID2 finden sich keine signifikanten Altersunterschiede, bei III-p-Befunden ist das Risiko für Frauen <30 und <35 signifikant größer als für ältere Frauen.
Schlussfolgerung
Die MN III mit 3‑gliedriger Dysplasiegraduierung klassifiziert die zytologischen Befunde risikoorientiert. Ihre Befundgruppen eignen sich als Basis für ein risikoadaptiertes Management, um insbesondere Überdiagnostik und -therapie zu vermeiden.
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Chibwesha CJ, Stringer JSA. Cervical Cancer as a Global Concern: Contributions of the Dual Epidemics of HPV and HIV. JAMA 2019; 322:1558-1560. [PMID: 31638658 DOI: 10.1001/jama.2019.16176] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Carla J Chibwesha
- Division of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill
- Clinical HIV Research Unit, Department of Medicine, University of the Witwatersrand Faculty of Health Sciences, Johannesburg, South Africa
| | - Jeffrey S A Stringer
- Division of Global Women's Health, Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill
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Chevreau J, Carcopino X, Foulon A, Preaubert L, Lanta-Delmas S, Sergent F, Gondry J. Risk factors for unsatisfactory colposcopy after large loop excision of the transformation zone: The results of a four-year multicenter prospective study. Eur J Obstet Gynecol Reprod Biol 2019; 240:156-160. [PMID: 31288186 DOI: 10.1016/j.ejogrb.2019.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/23/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Not being able to completely examine the cervical squamocolummar junction (SCJ) in colposcopy after large loop excision of the transformation zone (LLETZ) is an important issue regarding surveillance, as high-grade cervical intra-epithelial neoplasia recurrence risk is high. This study was conducted in order to identify risk factors for post-LLETZ unsatisfactory colposcopy. METHODS This prospective multicenter observational study was performed in nine French University hospitals, with inclusions running from December 2013 to December 2017. All patients scheduled for LLETZ were included and were divided into two groups after the two to four months post-procedure colposcopic examination: a satisfactory and an unsatisfactory post-LLETZ colposcopy group. RESULTS In total, 601 cases were analyzed and 71 post-LLETZ colposcopies (12%) were described as unsatisfactory (including 19 cervical stenosis). In a univariate analysis, we only observed a statistically significant increase of the following parameters in the unsatisfactory post-LLETZ group in comparison with the satisfactory post-LLETZ group: parity (2.11 [±1.55] and 1.49 [±1.24] respectively, p < .01), depth of the LLETZ specimen (10.9 mm [±3.37] and 9.76 [±3.79] respectively, p < .01), age (45.9 years [±11.7] and 37.9 [±9.42] respectively, p < .001) and an unsatisfactory pre-LLETZ colposcopy (43 satisfactory pre-LLETZ colposcopies [61%] and 456 [86%] respectively, p < .001). In a stepwise binary logistic regression analysis, only the two latter parameters were found to be independently associated with unsatisfactory post-LLETZ colposcopies. CONCLUSIONS Surgeons should consider other therapeutic strategies when contemplating iterative diagnosis-LLETZ in older women with initially invisible SCJ, as an appropriate post-LLETZ surveillance is at higher risk of being impossible to achieve.
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Affiliation(s)
- Julien Chevreau
- Department of Obstetrics and Gynecology, University Hospital of Amiens, CHU Amiens-Picardie, Avenue Laennec, Amiens Cedex 1, France.
| | - Xavier Carcopino
- Department of Obstetrics and Gynaecology, Hôpital Nord, APHM, Aix-Marseille University (AMU), Univ Avignon, CNRS, IRD, IMBE UMR, Marseille, France
| | - Arthur Foulon
- Department of Obstetrics and Gynecology, University Hospital of Amiens, CHU Amiens-Picardie, Avenue Laennec, Amiens Cedex 1, France
| | - Lise Preaubert
- Department of Obstetrics and Gynaecology, Hôpital Nord, APHM, Aix-Marseille University (AMU), Univ Avignon, CNRS, IRD, IMBE UMR, Marseille, France
| | - Ségolène Lanta-Delmas
- Department of Obstetrics and Gynecology, University Hospital of Amiens, CHU Amiens-Picardie, Avenue Laennec, Amiens Cedex 1, France
| | - Fabrice Sergent
- Department of Obstetrics and Gynecology, University Hospital of Amiens, CHU Amiens-Picardie, Avenue Laennec, Amiens Cedex 1, France
| | - Jean Gondry
- Department of Obstetrics and Gynecology, University Hospital of Amiens, CHU Amiens-Picardie, Avenue Laennec, Amiens Cedex 1, France
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Marquardt K, Ziemke P, Neumann K. Three-Tiered versus Two-Tiered Classification of Squamous Dysplasia in Cervical Cytology: Results of a Follow-Up Study. Acta Cytol 2018; 63:44-49. [PMID: 30517915 DOI: 10.1159/000494984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 10/29/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Regarding cytological findings of squamous dysplasia, a comparison was made between a three-tiered classification - low-grade squamous intraepithelial lesion (LSIL), high-grade SIL/cervical intraepithelial neoplasia 2 (HSIL/CIN2), and HSIL/CIN3 - and a two-tiered classification - LSIL and HSIL. The respective risk for CIN2+ and CIN3+ was calculated to make decisions regarding management. METHODS A total of 2,949 women with first-time cytologic findings of squamous dysplasia (LSIL, HSIL/CIN2, or HSIL/CIN3) between January 2013 and June 2016 were enrolled. Subsequent cytological findings and histological diagnoses were evaluated until August 2018. For each category of findings, the risk for CIN2+ and CIN3+ was determined by Kaplan-Meier estimates. The differences in risk between the cytological categories were checked for significance using the log-rank test. RESULTS For the categories LSIL, HSIL/CIN2, and HSIL/CIN3, the risk for CIN2+ after 12, 24, and 60 months was 3.4, 9.4, and 23.3%; 35.2, 44.8, and 59.8%; and 95.5, 97.8, and 98.9%, respectively. For CIN3+ the risk was 2.0, 5.5, and 13.5%; 28.6, 35.6, and 48.3%; 91.3, 95.6, and 97.9%, respectively. The differences in risk between the categories are highly significant, respectively (p < 0.001). CONCLUSION A three-tiered classification of squamous dysplasia such as the Munich Nomenclature III for cytology is suitable for risk-adapted clinical management, especially to avoid overdiagnosis and overtreatment.
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Affiliation(s)
| | - Peter Ziemke
- Praxis für Pathologie Dr. Marquardt, Schwerin, Germany
| | - Konrad Neumann
- Institut für Biometrie und Klinische Epidemiologie, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Wyndham-West M, Durand N, Santoro A. Betwixt and Between Well and Sick in Cervical Precancer: Canadian Women's Experiences of Recurring HPV Infections and HPV Vaccination. Can J Nurs Res 2018; 50:120-132. [PMID: 29759001 DOI: 10.1177/0844562118763496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Abstract
Background This research fuses the experiences of a precancer diagnosis with the decision-making surrounding a vaccine that can protect against human papillomavirus strains that women may not have been exposed to. The interviewee cohort is of note as half the women were in their 30s and 40s and 75% were over the age of 26. These groupings are often overlooked in media discourses and narrative research surrounding human papillomavirus and the human papillomavirus vaccine. Purpose Womens' diagnoses and treatment experiences, including colposcopies, biopsies, and Loop Electrosurgical Excision Procedures, are chronicled to highlight a liminal, precancerous state-one in which they are not deemed healthy, but nor have they been diagnosed with cancer. These are emotion-filled experiences that are ridden with anxiety and fear, but also ones that are structured with self-care strategies to contain human papillomavirus infections and the risk of cervical cancer. Methods Twenty women who attended Sunnybrook Health Sciences Centre's human papillomavirus vaccination clinic were interviewed and their narratives were documented and analyzed to determine their experiences surrounding human papillomavirus infections and precancer as well as their motivations for human papillomavirus vaccination. Results The decision to undergo human papillomavirus vaccination was a self-care strategy that accompanied treatment procedures and was a means to reduce cervical cancer risk. While encouraged with the human papillomavirus vaccine's potential to curb cervical cancer, they had a tempered view of the vaccine and its effectiveness in their cases, given their medical histories. Conclusions The research provides an in-depth accounting of an often overlooked grouping in human papillomavirus and human papillomavirus vaccination research and media discourse which, generally, focuses upon middle-school-aged girls and university-/college-aged women. In addition, the research provides recommendations for practice for cervical precancer diagnoses going forward.
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Affiliation(s)
| | - Nancy Durand
- 2 Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Aimee Santoro
- 3 Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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19
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Optical techniques for the diagnosis and treatment of lesions induced by the human papillomavirus - A resource letter. Photodiagnosis Photodyn Ther 2018; 23:106-110. [PMID: 29654842 DOI: 10.1016/j.pdpdt.2018.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/07/2018] [Accepted: 04/09/2018] [Indexed: 11/21/2022]
Abstract
Human papillomaviruses (HPV) are the most common sexually-transmitted virus, and carcinogenic HPV strains are reported to be responsible for virtually all cases of cervical cancer and its precursor, the cervical intraepithelial neoplasia (CIN). About 30% of the sexually active population are considered to be affected by HPV. Around 600 million people are estimated to be infected worldwide. Diseases related to HPV cause significant impact from both the personal welfare point of view and public healthcare perspective. This resource letter collects relevant information regarding HPV-induced lesions and discusses both diagnosis and treatment, with particular attention to optical techniques and the challenges involved to the implementation of those approaches.
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20
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Chang H, Hong JH, Lee JK, Cho HW, Ouh YT, Min KJ, So KA. Programmed death-1 (PD-1) expression in cervical intraepithelial neoplasia and its relationship with recurrence after conization. J Gynecol Oncol 2018; 29:e27. [PMID: 29400020 PMCID: PMC5920214 DOI: 10.3802/jgo.2018.29.e27] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/12/2017] [Accepted: 01/14/2018] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE Impaired local cellular immunity contributes to persistent human papillomavirus (HPV) infection and development of cervical intraepithelial neoplasia (CIN). Programmed death-1 (PD-1) and its ligands PD-ligand-1 (L1) and PD-L2 are negative regulators of T cell activity in various cancers, but few studies exist. The aim of this study was to determine the clinicopathologic and immunologic parameters (PD-1, PD-L1, and PD-L2) related to the persistence/recurrence of CIN after conization. METHODS Medical records of 652 patients diagnosed with CIN and underwent conization were reviewed. The associations between clinicopathologic parameters (e.g., age, parity, initial HPV load, etc.) and persistence/recurrence of CIN were analyzed. Expression of PD-1, PD-L1, and PD-L2 was assessed on 100 conization specimens by immunohistochemistry (IHC) in women matched for propensity-score (50 with persistence/recurrence and 50 without). RESULTS Initial HPV load (>1,000 relative light unit) and positive margin were shown to be significantly associated with CIN persistence/recurrence (p=0.012 and p<0.001, respectively). Multivariate analysis showed that margin status was an independent predictor of persistence/recurrence (hazard ratio=8.86; 95% confidence interval=1.67-16.81; p<0.001). On IHC analysis, none of the patients expressed PD-L1. PD-1+ T cells were observed in 25 of 100 patients. Also, PD-1+ T cells were significantly correlated with increasing grade of CIN (p=0.031). In addition, patients with persistence/recurrence had increased expression of PD-1 compared with those without (36% vs. 14%, respectively; p=0.020). Although PD-L2 expression did not differ between 2 groups, it was significantly higher in patients with high-grade CIN compared to low-grade (34.7% vs. 12%, respectively; p=0.041). CONCLUSION Positive surgical margin and expression of PD-1+ T cells were associated with CIN persistence/recurrence after conization.
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Affiliation(s)
- Hyeyoon Chang
- Department of Pathology, Korea University Guro Hospital, College of Medicine, Korea University, Seoul, Korea
| | - Jin Hwa Hong
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, College of Medicine, Korea University, Seoul, Korea.
| | - Jae Kwan Lee
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, College of Medicine, Korea University, Seoul, Korea
| | - Hyun Woong Cho
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, College of Medicine, Korea University, Seoul, Korea
| | - Yung Taek Ouh
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, College of Medicine, Korea University, Seoul, Korea
| | - Kyung Jin Min
- Department of Obstetrics and Gynecology, Korea University Ansan Hospital, College of Medicine, Korea University, Ansan, Korea
| | - Kyeong A So
- Department of Obstetrics and Gynecology, Cheil General Hospital and Women's Healthcare Center, Dankook University College of Medicine, Seoul, Korea
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Lili E, Chatzistamatiou K, Kalpaktsidou-Vakiani A, Moysiadis T, Agorastos T. Low recurrence rate of high-grade cervical intraepithelial neoplasia after successful excision and routine colposcopy during follow-up. Medicine (Baltimore) 2018; 97:e9719. [PMID: 29369205 PMCID: PMC5794389 DOI: 10.1097/md.0000000000009719] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 01/03/2018] [Accepted: 01/08/2018] [Indexed: 11/26/2022] Open
Abstract
The aim of the present cohort study was to assess the long-term (follow-up period up to 22 years) recurrence rate of preinvasive disease and the newly detected invasive disease rate in a cohort of women treated with excisional methods for high-grade cervical intraepithelial neoplasia (CIN).Women treated with large loop excision of the transformation zone (LLETZ) and cold knife conization (CKC) for histologically proven high-grade CIN were followed up for up to 22 years. Surgical specimens underwent histological examination and the status of endocervical as well as ectocervical margins was recorded. Follow-up protocol included conventional Pap test, colposcopy and pelvic examination at 3, 6, and 12 months after the initial treatment, and every 12 months thereafter, provided that the results were normal. In case of high-grade cytological findings and/or atypical colposcopic impression, multiple punch biopsies were taken in order to verify or exclude recurrent disease.In total, 804 women were followed for a mean time of 77.1 months (range: 6-266). LLETZ was used in 569 (70.7%) and CKC in 235 cases (29.2%). No woman developed invasive cervical cancer. Recurrent high-grade disease, developed in 9 women (1.1%, 95% confidence interval 0.5-2.2). Median treatment-to-recurrence time was 46.5 months (range: 6-235.3). One woman treated for squamous CIN2 on clear margins developed adenocarcinoma in situ 59.2 months post-treatment.Women having undergone excisional treatment for high-grade CIN indicate a very low risk for recurrent disease and potentially negligible risk for invasive cancer, provided that a strict and vigorous follow-up is offered after treatment.
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Affiliation(s)
| | | | | | - Theodoros Moysiadis
- Institute of Applied Biosciences, Centre for Research & Technology, Hellas, Thessaloniki, Greece
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Arbyn M, Redman CWE, Verdoodt F, Kyrgiou M, Tzafetas M, Ghaem-Maghami S, Petry KU, Leeson S, Bergeron C, Nieminen P, Gondry J, Reich O, Moss EL. Incomplete excision of cervical precancer as a predictor of treatment failure: a systematic review and meta-analysis. Lancet Oncol 2017; 18:1665-1679. [PMID: 29126708 DOI: 10.1016/s1470-2045(17)30700-3] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/24/2017] [Accepted: 08/29/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND Incomplete excision of cervical precancer is associated with therapeutic failure and is therefore considered as a quality indicator of clinical practice. Conversely, the risk of preterm birth is reported to correlate with size of cervical excision and therefore balancing the risk of adequate treatment with iatrogenic harm is challenging. We reviewed the literature with an aim to reveal whether incomplete excision, reflected by presence of precancerous tissue at the section margins, or post-treatment HPV testing are accurate predictors of treatment failure. METHODS We did a systematic review and meta-analysis to assess the risk of therapeutic failure associated with the histological status of the margins of the tissue excised to treat cervical precancer. We estimated the accuracy of the margin status to predict occurrence of residual or recurrent high-grade cervical intraepithelial neoplasia of grade two or worse (CIN2+) and compared it with post-treatment high-risk human papillomavirus (HPV) testing. We searched for published systematic reviews and new references from PubMed-MEDLINE, Embase, and CENTRAL and did also a new search spanning the period Jan 1, 1975, until Feb 1, 2016. Studies were eligible if women underwent treatment by excision of a histologically confirmed CIN2+ lesion, with verification of presence or absence of CIN at the resection margins; were tested by cytology or HPV assay between 3 months and 9 months after treatment; and had subsequent follow-up of at least 18 months post-treatment including histological confirmation of the occurrence of CIN2+. Primary endpoints were the proportion of positive section margins and the occurrence of treatment failure associated with the marginal status, in which treatment failure was defined as occurrence of residual or recurrent CIN2+. Information about positive resection margins and subsequent treatment failure was pooled using procedures for meta-analysis of binomial data and analysed using random-effects models. FINDINGS 97 studies were eligible for inclusion in the meta-analysis and included 44 446 women treated for cervical precancer. The proportion of positive margins was 23·1% (95% CI 20·4-25·9) overall and varied by treatment procedure (ranging from 17·8% [12·9-23·2] for laser conisation to 25·9% [22·3-29·6] for large loop excision of the transformation zone) and increased by the severity of the treated lesion. The overall risk of residual or recurrent CIN2+ was 6·6% (95% CI 4·9-8·4) and was increased with positive compared with negative resection margins (relative risk 4·8, 95% CI 3·2-7·2). The pooled sensitivity and specificity to predict residual or recurrent CIN2+ was 55·8% (95% CI 45·8-65·5) and 84·4% (79·5-88·4), respectively, for the margin status, and 91·0% (82·3-95·5) and 83·8% (77·7-88·7), respectively, for high-risk HPV testing. A negative high-risk HPV test post treatment was associated with a risk of CIN2+ of 0·8%, whereas this risk was 3·7% when margins were free. INTERPRETATION The risk of residual or recurrent CIN2+ is significantly greater with involved margins on excisional treatment; however, high-risk HPV post-treatment predicts treatment failure more accurately than margin status. FUNDING European Federation for Colposcopy and Institut national du Cancer (INCA).
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Affiliation(s)
- Marc Arbyn
- Unit of Cancer Epidemiology, Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium.
| | | | - Freija Verdoodt
- Unit of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Maria Kyrgiou
- Division of Reproductive Biology, Department Cancer and Surgery, Imperial College, London, UK
| | - Menelaos Tzafetas
- Division of Reproductive Biology, Department Cancer and Surgery, Imperial College, London, UK
| | - Sadaf Ghaem-Maghami
- Division of Reproductive Biology, Department Cancer and Surgery, Imperial College, London, UK
| | - Karl-Ulrich Petry
- Department of Gynaecology and Obstetrics, Klinikum Wolfsburg, Wolfsburg, Germany
| | - Simon Leeson
- Department of Gynaecology and Obstetrics, Betsi Cadwaladr University Health Board, Bangor, Gwyndd, UK
| | | | - Pekka Nieminen
- Department of Gynaecology and Obstetrics, Helsinki University Hospital, Helsinki, Finland
| | - Jean Gondry
- Service de gynécologie et obstétrique, CHU d'Amiens-Picardie, Amiens, France
| | - Olaf Reich
- Department of Gynaecology and Obstetrics, Medical University of Graz, Graz, Austria
| | - Esther L Moss
- Department of Cancer Studies, University of Leicester, Leicester, UK
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Adams TS, Mbatani NH. Clinical management of women presenting with field effect of HPV and intraepithelial disease. Best Pract Res Clin Obstet Gynaecol 2017; 47:86-94. [PMID: 29030149 DOI: 10.1016/j.bpobgyn.2017.08.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/29/2017] [Accepted: 08/29/2017] [Indexed: 01/26/2023]
Abstract
Anogenital human papillomavirus is the most common sexually transmitted infection acquired through skin-to-skin contact. Most infections are cleared by an intact immune system. Persistence of these infections results in precancerous lesions and, eventually, to cancers of the cervix, vagina, vulva, and perianal area. The introduction of the prophylactic human papilloma virus (HPV) vaccinations may reduce the incidence of these infections, but the effect of these vaccinations will be seen only in the decades that follow. In the meantime, multiple therapies such as immune modulators, ablative modalities, and surgical excision are used in an attempt to treat precancerous lesions and hence prevent cancer. There is an increase in multicentric disease in young women, especially with the HIV epidemic and in women who are immune compromised. This article aims to address the challenges and management options in women who have a field effect of HPV-associated disease.
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Affiliation(s)
- T S Adams
- Department of Obstetrics and Gynaecology, H Floor, Old Main Building, Groote Schuur Hospital, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa; SAMRC Gynaecological Cancer Research Centre (SAMRC GCR), Cape Town, South Africa.
| | - N H Mbatani
- Department of Obstetrics and Gynaecology, H Floor, Old Main Building, Groote Schuur Hospital, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa; SAMRC Gynaecological Cancer Research Centre (SAMRC GCR), Cape Town, South Africa.
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Maza M, Schocken CM, Bergman KL, Randall TC, Cremer ML. Cervical Precancer Treatment in Low- and Middle-Income Countries: A Technology Overview. J Glob Oncol 2017; 3:400-408. [PMID: 28831448 PMCID: PMC5560450 DOI: 10.1200/jgo.2016.003731] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cervical cancer is the fourth leading cause of cancer-related death in women worldwide, with 90% of cases occurring in low- and middle-income countries (LMICs). There has been a global effort to increase access to affordable screening in these settings; however, a corresponding increase in availability of effective and inexpensive treatment modalities for ablating or excising precancerous lesions is also needed to decrease mortality. This article reviews the current landscape of available and developing technologies for treatment of cervical precancer in LMICs. At present, the standard treatment of most precancerous lesions in LMICs is gas-based cryotherapy. This low-cost, effective technology is an expedient treatment in many areas; however, obtaining and transporting gas is often difficult, and unwieldy gas tanks are not conducive to mobile health campaigns. There are several promising ablative technologies in development that are gasless or require less gas than conventional cryotherapy. Although further evaluation of the efficacy and cost-effectiveness is needed, several of these technologies are safe and can now be implemented in LMICs. Nonsurgical therapies, such as therapeutic vaccines, antivirals, and topical applications, are also promising, but most remain in early-stage trials. The establishment of evidence-based standardized protocols for available treatments and the development and introduction of novel technologies are necessary steps in overcoming barriers to treatment in LMICs and decreasing the global burden of cervical cancer. Guidance from WHO on emerging treatment technologies is also needed.
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Affiliation(s)
- Mauricio Maza
- Mauricio Maza, Katherine L. Bergman, and Miriam L. Cremer, Basic Health International, New York, NY; Celina M. Schocken, Pink Ribbon Red Ribbon, Washington, DC; Thomas C. Randall, National Cancer Institute, Massachusetts General Hospital, Boston, MA; and Miriam L. Cremer, Cleveland Clinic, Cleveland, OH
| | - Celina M. Schocken
- Mauricio Maza, Katherine L. Bergman, and Miriam L. Cremer, Basic Health International, New York, NY; Celina M. Schocken, Pink Ribbon Red Ribbon, Washington, DC; Thomas C. Randall, National Cancer Institute, Massachusetts General Hospital, Boston, MA; and Miriam L. Cremer, Cleveland Clinic, Cleveland, OH
| | - Katherine L. Bergman
- Mauricio Maza, Katherine L. Bergman, and Miriam L. Cremer, Basic Health International, New York, NY; Celina M. Schocken, Pink Ribbon Red Ribbon, Washington, DC; Thomas C. Randall, National Cancer Institute, Massachusetts General Hospital, Boston, MA; and Miriam L. Cremer, Cleveland Clinic, Cleveland, OH
| | - Thomas C. Randall
- Mauricio Maza, Katherine L. Bergman, and Miriam L. Cremer, Basic Health International, New York, NY; Celina M. Schocken, Pink Ribbon Red Ribbon, Washington, DC; Thomas C. Randall, National Cancer Institute, Massachusetts General Hospital, Boston, MA; and Miriam L. Cremer, Cleveland Clinic, Cleveland, OH
| | - Miriam L. Cremer
- Mauricio Maza, Katherine L. Bergman, and Miriam L. Cremer, Basic Health International, New York, NY; Celina M. Schocken, Pink Ribbon Red Ribbon, Washington, DC; Thomas C. Randall, National Cancer Institute, Massachusetts General Hospital, Boston, MA; and Miriam L. Cremer, Cleveland Clinic, Cleveland, OH
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25
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Tanaka Y, Ueda Y, Kakuda M, Kubota S, Matsuzaki S, Iwamiya T, Okazawa A, Matsuzaki S, Hashimoto K, Kobayashi E, Mabuchi S, Sawada K, Tomimatsu T, Yoshino K, Kimura T. Predictors for recurrent/persistent high-grade intraepithelial lesions and cervical stenosis after therapeutic conization: a retrospective analysis of 522 cases. Int J Clin Oncol 2017; 22:921-926. [PMID: 28451844 DOI: 10.1007/s10147-017-1124-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 04/11/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The objective of the study is to identify the risk factors associated with recurrent/persistent disease and cervical stenosis after conization. METHODS Five hundred twenty-two (522) cases of high-grade intraepithelial lesions treated by conization were retrospectively reviewed. Risk factors associated with recurrent/persistent disease were analyzed by univariate and multivariate analysis using a Cox hazard regression model. Factors that could potentially affect the risk of cervical stenosis were examined by univariate and by multivariate analysis using the χ 2 test and logistic regression, respectively. RESULTS Recurrent/persistent diseases and cervical stenosis occurred in 4.8% and 5.4% of the patients, respectively. Age ≥46 years [hazard ratio (HR) 3.6, 95% CI 1.36-10.3, p = 0.0092] and surgical margin involvement (HR 13.44, 95% CI 5.07-46.37, p < 0.001) were independent predictors for recurrent/persistent diseases. Age ≥46 years [odds ratio (OR) 4.27, 95% CI 1.88-10.07, p < 0.001] and shortened interval after childbirth to conization (within 12 months) (OR 5.42, 95% CI 1.42-17.41, p = 0.016) were independent risk factors for cervical stenosis. CONCLUSION Elderly patients (aged ≥46 years) are at high risk of recurrence and cervical stenosis, which may lead to unsatisfactory follow-up. Subsequent hysterectomy is beneficial to patients aged 46 or older with surgical margin involvement. Clinicians should recognize the possibility of cervical stenosis after conization during the breastfeeding period, leading to secondary infertility or hematometra.
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Affiliation(s)
- Yusuke Tanaka
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yutaka Ueda
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Mamoru Kakuda
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Satoshi Kubota
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Satoko Matsuzaki
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tadashi Iwamiya
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akiko Okazawa
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shinya Matsuzaki
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kae Hashimoto
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Eiji Kobayashi
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Seiji Mabuchi
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kenjiro Sawada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuji Tomimatsu
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kiyoshi Yoshino
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Tong R, Yang Q, Wang C, Bi F, Jiang B. OVCA1 expression and its correlation with the expression levels of cyclin D1 and p16 in cervical cancer and intraepithelial neoplasia. Oncol Lett 2017; 13:2929-2936. [PMID: 28521400 PMCID: PMC5431343 DOI: 10.3892/ol.2017.5848] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 12/02/2016] [Indexed: 11/08/2022] Open
Abstract
The present study aimed to examine the associations between the protein and mRNA expression levels of ovarian cancer gene 1 (OVCA1), cyclin D1 and p16 and high-risk human papillomavirus (HR-HPV) infection in cervical lesions. The protein expression levels of OVCA1, cyclin D1 and p16 in 66 cases of cervical cancer, 64 cases of cervical intraepithelial neoplasia (CIN) and 34 normal cervix tissues were detected using immunohistochemistry. The mRNA expression levels of OVCA1, cyclin D1 and p16 in cervical cancer and normal cervix cells were detected using real-time polymerase chain reaction. The results revealed that the protein expression levels of OVCA1 increased gradually, whereas its mRNA expression levels decreased gradually, in the progression from normal cervix tissue to CIN and cervical cancer (P<0.01). In addition, significant differences in the protein expression levels of OVCA1 between low-and high-level CIN, as well as between the early and advanced stages of cervical cancer, were observed (P<0.05). No significant associations were detected between the protein and mRNA expression levels of OVCA1 and the pathological type of cervical cancer or the presence of lymph node metastasis (P>0.05). The expression levels of OVCA1 mRNA and protein were positively correlated with the levels of p16 expression (P<0.01). Significant differences were also observed in the OVCA1 protein and mRNA expression levels between the HR-HPV (+) and HR-HPV (−) groups (P<0.05). Therefore, aberrant expression of OVCA1 protein and mRNA may be important during the development of cervical lesions, particularly in the early stages. In addition, the mechanisms underlying the effects of OVCA1 during cervical cancer development may involve p16 and HPV, as the levels of OVCA1 in cervical lesions were correlated with abnormal expression of p16 and HR-HPV infection.
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Affiliation(s)
- Rui Tong
- Ward One of Minimally Invasive Gynecology, Nanhu Branch of Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China.,Ward Four of Tumor Gynecology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Qing Yang
- Ward One of Minimally Invasive Gynecology, Nanhu Branch of Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Chunyan Wang
- Ward Four of Tumor Gynecology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Fangfang Bi
- Ward One of Minimally Invasive Gynecology, Nanhu Branch of Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Bing Jiang
- Pathology Department, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
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Gajjar K, Martin-Hirsch PPL, Bryant A, Owens GL. Pain relief for women with cervical intraepithelial neoplasia undergoing colposcopy treatment. Cochrane Database Syst Rev 2016; 7:CD006120. [PMID: 27428114 PMCID: PMC6457789 DOI: 10.1002/14651858.cd006120.pub4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Pre-cancerous lesions of cervix (cervical intraepithelial neoplasia (CIN)) are usually treated with excisional or ablative procedures. In the UK, the National Health Service (NHS) cervical screening guidelines suggest that over 80% of treatments should be performed in an outpatient setting (colposcopy clinics). Furthermore, these guidelines suggest that analgesia should always be given prior to laser or excisional treatments. Currently various pain relief strategies are employed that may reduce pain during these procedures. OBJECTIVES To assess whether the administration of pain relief (analgesia) reduces pain during colposcopy treatment and in the postoperative period. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL 2016, Issue 2), MEDLINE (1950 to March week 3, 2016) and Embase (1980 to week 12, 2016) for studies of any design relating to analgesia for colposcopic management. We also searched registers of clinical trials, abstracts of scientific meetings, reference lists of included studies and contacted experts in the field. SELECTION CRITERIA Randomised controlled trials (RCTs) that compared all types of pain relief before, during or after outpatient treatment to the cervix, in women with CIN undergoing loop excision, laser ablation, laser excision or cryosurgery in an outpatient colposcopy clinic setting. DATA COLLECTION AND ANALYSIS We independently assessed study eligibility, extracted data and assessed risk of bias. We entered data into Review Manager 5 and double checked it for accuracy. Where possible, we expressed results as mean pain score and standard error of the mean with 95% confidence intervals (CI) and synthesised data in a meta-analysis. MAIN RESULTS We included 19 RCTs (1720 women) of varying methodological quality in the review. These trials compared a variety of interventions aimed at reducing pain in women who underwent treatment for CIN, including cervical injection with lignocaine alone, lignocaine with adrenaline, buffered lignocaine with adrenaline, prilocaine with felypressin, oral analgesics (non-steroidal anti-inflammatory drugs (NSAIDs)), inhalation analgesia (gas mixture of isoflurane and desflurane), lignocaine spray, cocaine spray, local application of benzocaine gel, lignocaine-prilocaine cream (EMLA cream) and transcutaneous electrical nerve stimulation (TENS).Most comparisons were restricted to single trial analyses and were under-powered to detect differences in pain scores between treatments that may or may not have been present. There was no difference in pain relief between women who received local anaesthetic infiltration (lignocaine 2%; administered as a paracervical or direct cervical injection) and a saline placebo (mean difference (MD) -13.74; 95% CI -34.32 to 6.83; 2 trials; 130 women; low quality evidence). However, when local anaesthetic was combined with a vasoconstrictor agent (one trial used lignocaine plus adrenaline while the second trial used prilocaine plus felypressin), there was less pain (on visual analogue scale (VAS)) compared with no treatment (MD -23.73; 95% CI -37.53 to -9.93; 2 trials; 95 women; low quality evidence). Comparing two preparations of local anaesthetic combined with vasoconstrictor, prilocaine plus felypressin did not differ from lignocaine plus adrenaline for its effect on pain control (MD -0.05; 95% CI -0.26 to 0.16; 1 trial; 200 women). Although the mean (± standard deviation (SD)) observed blood loss score was less with lignocaine plus adrenaline (1.33 ± 1.05) compared with prilocaine plus felypressin (1.74 ± 0.98), the difference was not clinically as the overall scores in both groups were low (MD 0.41; 95% CI 0.13 to 0.69; 1 trial; 200 women). Inhalation of gas mixture (isoflurane and desflurane) in addition to standard cervical injection with prilocaine plus felypressin resulted in less pain during the LLETZ (loop excision of the transformation zone) procedure (MD -7.20; 95% CI -12.45 to -1.95; 1 trial; 389 women). Lignocaine plus ornipressin resulted in less measured blood loss (MD -8.75 ml; 95% CI -10.43 to -7.07; 1 trial; 100 women) and a shorter duration of treatment (MD -7.72 minutes; 95% CI -8.49 to -6.95; 1 trial; 100 women) than cervical infiltration with lignocaine alone. Buffered solution (sodium bicarbonate buffer mixed with lignocaine plus adrenaline) was not superior to non-buffered solution of lignocaine plus adrenaline in relieving pain during the procedure (MD -8.00; 95% CI -17.57 to 1.57; 1 trial; 52 women).One meta-analysis found no difference in pain using VAS between women who received oral analgesic and women who received placebo (MD -3.51; 95% CI -10.03 to 3.01; 2 trials; 129 women; low quality evidence).Cocaine spray was associated with less pain (MD -28.00; 95% CI -37.86 to -18.14; 1 trial; 50 women) and blood loss (MD 0.04; 95% CI 0 to 0.70; 1 trial; 50 women) than placebo.None of the trials reported serious adverse events and majority of trials were at moderate or high risk of bias (13 trials). AUTHORS' CONCLUSIONS Based on two small trials, there was no difference in pain relief in women receiving oral analgesics compared with placebo or no treatment (MD -3.51; 95% CI -10.03 to 3.01; 129 women). We consider this evidence to be of a low to moderate quality. In routine clinical practice, intracervical injection of local anaesthetic with a vasoconstrictor (lignocaine plus adrenaline or prilocaine plus felypressin) appears to be the optimum analgesia for treatment. However, further high quality, adequately powered trials should be undertaken in order to provide the data necessary to estimate the efficacy of oral analgesics, the optimal route of administration and dose of local anaesthetics.
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Affiliation(s)
- Ketan Gajjar
- Gynaecological Oncology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Hills Road, Cambridge, UK, CB2 0QQ
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28
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Jiang YM, Chen CX, Li L. Meta-analysis of cold-knife conization versus loop electrosurgical excision procedure for cervical intraepithelial neoplasia. Onco Targets Ther 2016; 9:3907-15. [PMID: 27418835 PMCID: PMC4934869 DOI: 10.2147/ott.s108832] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Objective This meta-analysis aimed to compare the superiority of loop electrosurgical excision procedure (LEEP) or large loop excision of the transformation zone (LLETZ) versus cold-knife conization (CKC) in the surgical treatment of cervical intraepithelial neoplasia (CIN). Methods Systematic searches were performed in the MEDLINE, EMBASE, Cochrane databases, and the China National Knowledge Infrastructure Databases to identify all potential articles involving patients with CIN treated with LEEP/LLETZ or CKC published up to February 2016. Risk ratios (RRs) or weighted mean difference (MD) with a 95% confidence interval (95% CI) were calculated. Results Seven randomized controlled trials, one prospective cohort study, and twelve retrospective cohort studies were included in this meta-analysis. There were no significant differences following LEEP/LLETZ compared with CKC in recurrence rate (RR =1.75, 95% CI =0.99–3.11, P=0.06), positive margin rate (RR =1.45; 95% CI =0.85–2.49, P=0.17), residual disease rate (RR =1.15, 95% CI =0.73–1.81, P=0.48), secondary hemorrhage (RR =1.16, 95% CI =0.74–1.81; P=0.46), or cervical stenosis. Moreover, subgroup analyses based on randomized trials also revealed that no statistical significance was observed in the above outcomes. However, women treated with CKC had a significantly deeper cervical cone than those treated with LLETZ/LEEP (MD =−5.71, 95% CI =−7.45 to −3.96; P<0.001). Conclusion LEEP/LLETZ is as effective as CKC with regard to recurrence rate, positive margin rate, residual disease rate, secondary hemorrhage, and cervical stenosis for the surgical treatment of CIN. Further large-scale studies are needed to confirm our findings.
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Affiliation(s)
- Yan-Ming Jiang
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Chang-Xian Chen
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Li Li
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
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Sawaya GF, Kulasingam S, Denberg TD, Qaseem A. Cervical Cancer Screening in Average-Risk Women: Best Practice Advice From the Clinical Guidelines Committee of the American College of Physicians. Ann Intern Med 2015; 162:851-9. [PMID: 25928075 DOI: 10.7326/m14-2426] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
DESCRIPTION The purpose of this best practice advice article is to describe the indications for screening for cervical cancer in asymptomatic, average-risk women aged 21 years or older. METHODS The evidence reviewed in this work is a distillation of relevant publications (including systematic reviews) used to support current guidelines. BEST PRACTICE ADVICE 1 Clinicians should not screen average-risk women younger than 21 years for cervical cancer. BEST PRACTICE ADVICE 2 Clinicians should start screening average-risk women for cervical cancer at age 21 years once every 3 years with cytology (cytologic tests without human papillomavirus [HPV] tests). BEST PRACTICE ADVICE 3 Clinicians should not screen average-risk women for cervical cancer with cytology more often than once every 3 years. BEST PRACTICE ADVICE 4 Clinicians may use a combination of cytology and HPV testing once every 5 years in average-risk women aged 30 years or older who prefer screening less often than every 3 years. BEST PRACTICE ADVICE 5 Clinicians should not perform HPV testing in average-risk women younger than 30 years. BEST PRACTICE ADVICE 6 Clinicians should stop screening average-risk women older than 65 years for cervical cancer if they have had 3 consecutive negative cytology results or 2 consecutive negative cytology plus HPV test results within 10 years, with the most recent test performed within 5 years. BEST PRACTICE ADVICE 7 Clinicians should not screen average-risk women of any age for cervical cancer if they have had a hysterectomy with removal of the cervix.
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Affiliation(s)
- George F. Sawaya
- From the University of California, San Francisco, Center for Healthcare Value, San Francisco, California; University of Minnesota School of Public Health, Minneapolis, Minnesota; Carilion Clinic, Roanoke, Virginia; and American College of Physicians, Philadelphia, Pennsylvania
| | - Shalini Kulasingam
- From the University of California, San Francisco, Center for Healthcare Value, San Francisco, California; University of Minnesota School of Public Health, Minneapolis, Minnesota; Carilion Clinic, Roanoke, Virginia; and American College of Physicians, Philadelphia, Pennsylvania
| | - Thomas D. Denberg
- From the University of California, San Francisco, Center for Healthcare Value, San Francisco, California; University of Minnesota School of Public Health, Minneapolis, Minnesota; Carilion Clinic, Roanoke, Virginia; and American College of Physicians, Philadelphia, Pennsylvania
| | - Amir Qaseem
- From the University of California, San Francisco, Center for Healthcare Value, San Francisco, California; University of Minnesota School of Public Health, Minneapolis, Minnesota; Carilion Clinic, Roanoke, Virginia; and American College of Physicians, Philadelphia, Pennsylvania
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Rosales R, Rosales C. Immune therapy for human papillomaviruses-related cancers. World J Clin Oncol 2014; 5:1002-1019. [PMID: 25493236 PMCID: PMC4259927 DOI: 10.5306/wjco.v5.i5.1002] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 04/08/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
Human papillomaviruses (HPVs) are a large family of double strand DNA viruses comprising more than 180 types. Infection with HPV is very common and it is associated with benign and malignant proliferation of skin and squamous mucosae. Many HPVs, considered low-risk such as HPV 6 and 11, produce warts; while high-risk viruses, such as HPVs 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, and 58, induce tumors. About 5% of all cancers in men and women are associated with HPV infection. Because there are not antiviral drugs for HPV infection, current therapies for low-risk HPV infections involve physical removal of the lesion by cryotherapy, trichloracetic acid, laser, or surgical removal. Surgical procedures are effective in the treatment of pre-cancerous lesions, however after these procedures, many recurrences appear due to new re-infections, or to failure of the procedure to eliminate the HPV. In addition, HPV can inhibit recognition of malignant cells by the immune system, leading to the development of cancer lesions. When this occurs, radiotherapy and chemotherapy are then used. Unfortunately, about 50% of the HPV-cancer patients still die. In the past decade, a better knowledge of the natural history of the virus-host interaction and of the immune response against this viral infection has brought new therapeutic strategies geared to modulate the immune system to generate an efficient virus-specific cytotoxic response. Novel HPV protein-expressing vaccines have shown some significant clinical efficacy and systemic HPV-specific cytotoxic T cell responses. This review will describe the current status of the several therapeutic strategies used to treat HPV-induced lesions, and discuss the various new therapies now being tested.
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Rosales R, López-Contreras M, Rosales C, Magallanes-Molina JR, Gonzalez-Vergara R, Arroyo-Cazarez JM, Ricardez-Arenas A, del Follo-Valencia A, Padilla-Arriaga S, Guerrero MV, Pirez MA, Arellano-Fiore C, Villarreal F. Regression of human papillomavirus intraepithelial lesions is induced by MVA E2 therapeutic vaccine. Hum Gene Ther 2014; 25:1035-49. [PMID: 25275724 PMCID: PMC4270165 DOI: 10.1089/hum.2014.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 09/23/2014] [Indexed: 01/07/2023] Open
Abstract
Human papilloma viruses can induce warts, condylomas, and other intraepithelial cervical lesions that can progress to cancer. Cervical cancer is a serious problem in developing countries because early detection is difficult, and thus proper early treatment is many times missing. In this phase III clinical trial, we evaluated the potential use of MVA E2 recombinant vaccinia virus to treat intraepithelial lesions associated with papillomavirus infection. A total of 1176 female and 180 male patients with intraepithelial lesions were studied. They were injected with 10(7) MVA E2 virus particles directly into their uterus, urethra, vulva, or anus. Patients were monitored by colposcopy and cytology. Immune response was determined by measuring the antibody titer against MVA E2 virus and by analyzing the cytotoxic activity against cancer cells bearing papillomavirus DNA. Papillomavirus was determined by the Hybrid Capture method or by polymerase chain reaction analysis. By histology, 1051 (89.3%) female patients showed complete elimination of lesions after treatment with MVA E2. In 28 (2.4%) female patients, the lesion was reduced to CIN 1. Another 97 (8.3%) female patients presented isolated koilocytes after treatment. In men, all lesions were completely eliminated. All MVA E2-treated patients developed antibodies against the MVA E2 vaccine and generated a specific cytotoxic response against papilloma-transformed cells. Papillomavirus DNA was not detected after treatment in 83% of total patients treated. MVA E2 did not generate any apparent side effects. These data suggest that therapeutic vaccination with MVA E2 vaccine is an excellent candidate to stimulate the immune system and generate regression in intraepithelial lesions when applied locally.
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Affiliation(s)
| | | | - Carlos Rosales
- Instituto de Investigaciones Biomédicas, CP 04510 Universidad Nacional Autónoma de México, Mexico City, Mexico
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De Vuyst H, Mugo NR, Franceschi S, McKenzie K, Tenet V, Njoroge J, Rana FS, Sakr SR, Snijders PJF, Chung MH. Residual disease and HPV persistence after cryotherapy for cervical intraepithelial neoplasia grade 2/3 in HIV-positive women in Kenya. PLoS One 2014; 9:e111037. [PMID: 25343563 PMCID: PMC4208814 DOI: 10.1371/journal.pone.0111037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 08/01/2014] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To assess residual cervical intraepithelial neoplasia (CIN) 2/3 disease and clearance of high-risk (hr) human papillomavirus (HPV) infections at 6 months after cryotherapy among HIV-positive women. DESIGN Follow-up study. METHODS 79 HIV-positive women received cryotherapy for CIN2/3 in Nairobi, Kenya, and underwent conventional cytology 6 months later. Biopsies were performed on high grade cytological lesions and hrHPV was assessed before (cervical cells and biopsy) and after cryotherapy (cells). RESULTS At 6 months after cryotherapy CIN2/3 had been eliminated in 61 women (77.2%; 95% Confidence Interval, (CI): 66.4-85.9). 18 women (22.8%) had residual CIN2/3, and all these women had hrHPV at baseline. CD4 count and duration of combination antiretroviral therapy (cART) were not associated with residual CIN2/3. CIN3 instead of CIN2 was the only significant risk factor for residual disease (odds ratio, OR vs CIN2 = 4.3; 95% CI: 1.2-15.0) among hrHPV-positive women after adjustment for age and HPV16 infection. Persistence of hrHPV types previously detected in biopsies was found in 77.5% of women and was associated with residual CIN2/3 (OR = 8.1, 95% CI: 0.9-70). The sensitivity, specificity, and negative predictive value of hrHPV test in detecting residual CIN2/3 were 0.94, 0.36, and 0.96 respectively. CONCLUSIONS Nearly one quarter of HIV-positive women had residual CIN2/3 disease at 6 months after cryotherapy, and the majority had persistent hrHPV. CD4 count and cART use were not associated with residual disease or hrHPV persistence. The value of hrHPV testing in the detection of residual CIN2/3 was hampered by a low specificity.
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Affiliation(s)
- Hugo De Vuyst
- International Agency for Research on Cancer, Lyon, France
| | - Nelly R. Mugo
- Department of Obstetrics and Gynecology, Kenyatta National Hospital, Nairobi, Kenya
| | | | - Kevin McKenzie
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Vanessa Tenet
- International Agency for Research on Cancer, Lyon, France
| | - Julia Njoroge
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | | | | | - Peter J. F. Snijders
- Department of Pathology, Vrije Universiteit Medical Center, Amsterdam, the Netherlands
| | - Michael H. Chung
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Department of Epidemiology, University of Washington, Seattle, Washington, United States of America
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Pierce JG, Bright S. Performance of a colposcopic examination, a loop electrosurgical procedure, and cryotherapy of the cervix. Obstet Gynecol Clin North Am 2014; 40:731-57. [PMID: 24286998 DOI: 10.1016/j.ogc.2013.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Colposcopy is the accepted diagnostic test for evaluation of an abnormal Pap test to determine the location and extent of cervical intraepithelial lesions (CIN). Loop electrocautery excision procedure (LEEP) is the preferred procedure for advanced diagnosis and treatment of CIN following colposcopy. Although LEEP is the preferred treatment of CIN, cryotherapy is an option for treatment in some settings due to it's ease of performance, minimal complications, and cost-effectiveness. This article focuses on the proper technique and use of these procedures to evaluate and treat cervical abnormalities.
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Affiliation(s)
- John G Pierce
- Department of Obstetrics and Gynecology, Virginia Commonwealth University Health System, 1250 East Marshall Street, PO Box 980034, Richmond, VA 23298-0034, USA.
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Prediction of spontaneous regression of cervical intraepithelial neoplasia lesions grades 2 and 3 by proteomic analysis. INTERNATIONAL JOURNAL OF PROTEOMICS 2014; 2014:129064. [PMID: 25018881 PMCID: PMC4082862 DOI: 10.1155/2014/129064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/29/2014] [Accepted: 05/14/2014] [Indexed: 02/07/2023]
Abstract
Regression of cervical intraepithelial neoplasia (CIN) 2-3 to CIN 1 or less is associated with immune response as demonstrated by immunohistochemistry in formaldehyde-fixed paraffin-embedded (FFPE) biopsies. Proteomic analysis of water-soluble proteins in supernatants of biopsy samples with LC-MS (LTQ-Orbitrap) was used to identify proteins predictive of CIN2-3 lesions regression. CIN2-3 in the biopsies and persistence (CIN2-3) or regression (≤CIN1) in follow-up cone biopsies was validated histologically by two experienced pathologists. In a learning set of 20 CIN2-3 (10 regressions and 10 persistence cases), supernatants were depleted of seven high abundance proteins prior to unidimensional LC-MS/MS protein analysis. Mean protein concentration was 0.81 mg/mL (range: 0.55–1.14). Multivariate statistical methods were used to identify proteins that were able to discriminate between regressive and persistent CIN2-3. The findings were validated in an independent test set of 20 CIN2-3 (10 regressions and 10 persistence cases). Multistep identification criteria identified 165 proteins. In the learning set, zinc finger protein 441 and phospholipase D6 independently discriminated between regressive and persistent CIN2-3 lesions and correctly classified all 20 patients. Nine regression and all persistence cases were correctly classified in the validation set. Zinc finger protein 441 and phospholipase D6 in supernatant samples detected by LTQ-Orbitrap can predict regression of CIN2-3.
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Grabosch SM, Shariff OM, Wulff JL, Helm CW. Non-steroidal anti-inflammatory agents to induce regression and prevent the progression of cervical intraepithelial neoplasia. Cochrane Database Syst Rev 2014; 2014:CD004121. [PMID: 24715225 PMCID: PMC6457632 DOI: 10.1002/14651858.cd004121.pub3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Cervical intraepithelial neoplasia (CIN) precedes the development of invasive carcinoma of the cervix. Current treatment of CIN is quite effective, but there is morbidity for the patient related to pain, bleeding, infection, cervical stenosis and premature birth in subsequent pregnancy. Effective treatment with medications, rather than surgery, would be beneficial. OBJECTIVES To evaluate the effectiveness and safety of non-steroidal anti-inflammatory agents (NSAIDs), including cyclooxygenase-2 (COX-2) inhibitors, to induce regression and prevent the progression of cervical intraepithelial neoplasia CIN. SEARCH METHODS We searched the Cochrane Gynaecological Cancer Group Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) (Issue 11, 2013), MEDLINE (November, 2013) and EMBASE (November week 48, 2013). We also searched abstracts of scientific meetings and reference lists of included studies. SELECTION CRITERIA Randomised controlled trials (RCTs) or controlled trials of NSAIDs in the treatment of CIN. DATA COLLECTION AND ANALYSIS Three review authors independently abstracted data and assessed risks of bias. Outcome data were pooled using random-effects meta-analyses. MAIN RESULTS In two RCTs, 41 women over the age of 18 years, in an outpatient setting, were randomised to receive celecoxib 200 mg twice daily by mouth for six months versus placebo (one study, 25 participants) or rofecoxib 25 mg once daily by mouth for three months versus placebo (one study, 16 participants). This second study was discontinued early when rofecoxib was withdrawn from the market in 2004. The trials ran from June 2002 to October 2003, and May 2004 to October 2004. We have chosen to include the data from the rofecoxib study as outcomes may be similar when other such NSAIDs are utilised.Partial or complete regression of CIN 2 or 3 occurred in 11 out of 20 (55%) in the treatment arms and five out of 21 (23.8%) in the placebo arms (RR 2.35, 95% CI 1.03 to 5.35; P value 0.04), very low quality evidence). Complete regression of CIN 2 or 3 occurred in four of 12 (33%) of those receiving celecoxib versus two of 13 (15%) of those receiving placebo (RR 2.17, 95% CI 0.48 to 9.76; P value 0.31, very low quality evidence). Partial regression of CIN 2 or 3 occurred in five of 12 (42%) of those receiving celecoxib versus two of 13 (15%) of those receiving placebo (RR 2.71, 95% CI 0.64 to 11.43; P value 0.18), very low quality evidence). Progression to a higher grade of CIN, but not to invasive cancer, occurred in one of 12 (8%) of those receiving celecoxib and two of 13 (15%) receiving placebo (RR 0.54, 95% CI 0.05 to 5.24; P value 0.4, very low quality evidence). One study reported no cases of progression to invasive cancer within the timeframe of the study. No toxicity was reported in either study. Although the studies were well conducted and randomised, some risk of bias was detected in both studies. Furthermore, the duration of the studies was short, which may mask identifying progression to cancer. AUTHORS' CONCLUSIONS There are currently no convincing data to support a benefit for NSAIDs in the treatment of CIN (very low quality evidence according to GRADE criteria). Results from a large on-going randomised study of celecoxib are awaited.
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Affiliation(s)
- Shannon M Grabosch
- Saint Louis University School of MedicineSaint Louis University Department of Obstetrics and Gynaecology1025A Commodore DriveRichmond HeightsMissouriUSA63117
| | - Osman M Shariff
- University of Louisville School of Medicine3646 Warner AveLouisvilleUSA40207
| | - Judith L Wulff
- University of LouisvilleKornhauser Health Sciences Library500 South Preston StreetLouisvilleUSA40202
| | - C. William Helm
- Queen Elizabeth HospitalNorthern Gynaecological Oncology CentreSheriff HillGatesheadUKNE9 6SX
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Windstar K, Dunlap C, Zwickey H. Escharotic Treatment for ECC-positive CIN3 in Childbearing Years: A Case Report. Integr Med (Encinitas) 2014; 13:43-49. [PMID: 26770091 PMCID: PMC4684126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A persistent human papillomavirus (HPV) infection of a high-risk type is necessary for cervical cancer to develop. The severity of the diagnosis, together with colposcopy findings, determines the standard for treatment, and ablative or excisional options may be recommended. Escharotic treatment, together with an oral, anticarcinogenic HPV protocol and a vaginal-suppository protocol, is an alternative treatment, especially for those women of childbearing age who are concerned about the possibility of obstetrical complications associated with the use of loop electrosurgical excision (LEEP). The aim of the current case study was to observe the effect of an ablative escharotic treatment for a woman with severe dysplasia, cervical intraepithelial neoplasia grade 3 (CIN3). A 28-y-old female visited the National College of Natural Medicine clinic to obtain suggestions for alternative treatments following a satisfactory colposcopy and a biopsy revealing a high-risk HPV effect, severe dysplasia CIN3, and a positive endocervical curettage (ECC). She refused the recommended standard of care, a LEEP, because of concerns about the potential for future obstetrical complications. As an alternative, she elected to receive an escharotic treatment at a frequency of 2 treatments/wk for 5 wk. In addition to the escharotic treatment, she followed an oral protocol consisting of vitamins and botanical medicine for 1 y and she completed a 12-wk regime of vaginal suppositories following the escharotic. The authors followed her for 2 y. The woman's Papanicolaou (Pap) test at the 6-mo follow-up revealed negative cervical cytology for intraepithelial lesion or malignancy, and her follow-up ECC was negative. Liquid-based Pap results were normal, and HPV testing was negative at her 1-y follow-up. Her Pap continued to remain normal at her 2-y follow-up. For women with high-grade cervical neoplasias and positive ECCs, with satisfactory colposcopies, escharotic treatment, accompanied by oral supplementation, holds promise as an effective alternative to LEEP and other excisional procedures.
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Abstract
Breast and cervical screening each have a distinct balance of benefits and harms. While they are both likely to reduce mortality, breast screening is associated with a greater relative frequency of serious harms than cervical screening. A unique approach has been adopted in England with respect to providing information on cancer screening with the goal of facilitating informed choice. The new materials provide more detail than previous information about the benefits and harms of screening as well as the scientific uncertainties. While there is a uniform format and the information covers the same key issues in both breast and cervical screening programmes, the emphasis and detail varies according to balance of benefits and harms within these programmes.
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Affiliation(s)
- Lindsay J L Forbes
- King's College London Promoting Early Cancer Presentation Group, Capital House, 42 Weston Street, London, SE1 3QD, UK,
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Aponte-González J, Fajardo-Bernal L, Diaz J, Eslava-Schmalbach J, Gamboa O, Hay JW. Cost-effectiveness analysis of the bivalent and quadrivalent human papillomavirus vaccines from a societal perspective in Colombia. PLoS One 2013; 8:e80639. [PMID: 24260441 PMCID: PMC3832449 DOI: 10.1371/journal.pone.0080639] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 10/15/2013] [Indexed: 11/18/2022] Open
Abstract
Objective To compare costs and effectiveness of three strategies used against cervical cancer (CC) and genital warts: (i) Screening for CC; (ii) Bivalent Human Papillomavirus (HPV) 16/18 vaccine added to screening; (iii) Quadrivalent HPV 6/11/16/18 vaccine added to screening. Methods A Markov model was designed in order to simulate the natural history of the disease from 12 years of age (vaccination) until death. Transition probabilities were selected or adjusted to match the HPV infection profile in Colombia. A systematic review was undertaken in order to derive efficacy values for the two vaccines as well as for the operational characteristics of the cytology test. The societal perspective was used. Effectiveness was measured in number of averted Disability Adjusted Life Years (DALYS). Results At commercial prices reported for 2010 the two vaccines were shown to be non-cost-effective alternatives when compared with the existing screening strategy. Sensitivity analyses showed that results are affected by the cost of vaccines and their efficacy values, making it difficult to determine with certainty which of the two vaccines has the best cost-effectiveness profile. To be ‘cost-effective’ vaccines should cost between 141 and 147 USD (Unite States Dollars) per vaccinated girl at the most. But at lower prices such as those recommended by WHO or the price of other vaccines in Colombia, HPV vaccination could be considered very cost-effective. Conclusions HPV vaccination could be a convenient alternative for the prevention of CC in Colombia. However, the price of the vaccine should be lower for this vaccination strategy to be cost-effective. It is also important to take into consideration the willingness to pay, budgetary impact, and program implications, in order to determine the relevance of a vaccination program in this country, as well as which vaccine should be selected for use in the program.
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Affiliation(s)
- Johanna Aponte-González
- Clinical Research Institute, Clinical Epidemiology Department, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
- * E-mail:
| | - Luisa Fajardo-Bernal
- Clinical Research Institute, Clinical Epidemiology Department, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Jorge Diaz
- Pharmacology Department, School of Pharmacy, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Javier Eslava-Schmalbach
- Clinical Research Institute, Clinical Epidemiology Department, School of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Oscar Gamboa
- Research Department (Subdirección Investigaciones), Instituto Nacional de Cancerología de Colombia, Bogotá, Colombia
| | - Joel W. Hay
- Titus Family Department of Clinical Pharmacy and Pharmaceutical Economics and Policy, School of Pharmacy, University of Southern California, Los Angeles, California, United States of America
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Risk of preterm delivery associated with prior treatment of cervical precancerous lesion according to the depth of the cone. DISEASE MARKERS 2013; 35:721-6. [PMID: 24324288 PMCID: PMC3845428 DOI: 10.1155/2013/686027] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 08/15/2013] [Indexed: 11/17/2022]
Abstract
The aim of this study was to evaluate the impact of the surgical excisional procedures for cervical intraepithelial neoplasia (CIN) treatment both on subsequent fertility (cervical factor) and pregnancy complication (risk of spontaneous preterm delivery). We retrospectively analyzed 236 fertile women who underwent conization for CIN. We included in the study 47 patients who carried on pregnancy and delivered a viable fetus. Patients were asked about postconization pregnancies, obstetrical outcomes, and a possible diagnosis of secondary infertility caused by cervical stenosis. We evaluated the depth of surgical excision, the timing between cervical conization and subsequent pregnancies, surgical technique, and maternal age at delivery. We recorded 47 deliveries, 10 cases of preterm delivery; 8 of them were spontaneous. The depth of surgical excision showed a statistically significant inverse correlation with gestational age at birth. The risk of spontaneous preterm delivery increased when conization depth exceeded a cut-off value of 1.5 cm. Our data do not demonstrated a relation between conization and infertility due to cervical stenosis.
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Cancer prevention in Asia: resource-stratified guidelines from the Asian Oncology Summit 2013. Lancet Oncol 2013; 14:e497-507. [DOI: 10.1016/s1470-2045(13)70350-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Bharathan R, Sagoo B, Subramaniam A, Larsen-Disney P, Fish A. LLETZ Specimen Fragmentation: Impact on Diagnosis, Outcome, and Implications for Training. J Obstet Gynaecol India 2013; 63:332-6. [PMID: 24431670 PMCID: PMC3798435 DOI: 10.1007/s13224-012-0332-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 11/20/2012] [Indexed: 11/30/2022] Open
Abstract
PURPOSE This study was designed to assess fragmentation of Large loop excision of the transformation zone (LLETZ) specimens, its influence on short-term cytological outcome, and the risk factors for specimen fragmentation, as we well as trainee performance on clinical outcome. METHOD This retrospective study was performed at a cancer center. Women who underwent LLETZ for suspected high-grade cervical intra-epithelial neoplasia (CIN) over a 5-year period were included. Patients were identified through a regional database. Data were obtained from hospital and regional databases. Fisher's exact test was used. RESULTS 75 % of all specimens were obtained intact. When the LLETZ specimen was intact, 89 % of smear tests were reported as negative, against 86 % when the specimen was fragmented. Fragmentation was significantly associated with high-grade smear results at 6 months. Trainee status was significantly related to specimen fragmentation. CONCLUSION Fragmentation of LLETZ specimens is associated with an increased likelihood of obtaining a high-grade smear at 6 months post treatment. Enhancing the colposcopy training may help improve clinical outcome.
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Affiliation(s)
- Rasiah Bharathan
- Department of Obstetrics and Gynaecology, Royal Sussex County Hospital, Eastern Road, Brighton, Sussex BN2 5BE UK
| | - Balvinder Sagoo
- Department of Obstetrics and Gynaecology, Royal Sussex County Hospital, Eastern Road, Brighton, Sussex BN2 5BE UK
| | - Aravind Subramaniam
- Department of Obstetrics and Gynaecology, Royal Sussex County Hospital, Eastern Road, Brighton, Sussex BN2 5BE UK
| | - Peter Larsen-Disney
- Department of Obstetrics and Gynaecology, Royal Sussex County Hospital, Eastern Road, Brighton, Sussex BN2 5BE UK
| | - Andrew Fish
- Department of Obstetrics and Gynaecology, Royal Sussex County Hospital, Eastern Road, Brighton, Sussex BN2 5BE UK
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Baldauf JJ, Averous G, Baulon E, Thoma V, Talha-Vautravers A, Sananes N, Akladios Y. Neoplasias intraepiteliales del cuello uterino. EMC - GINECOLOGÍA-OBSTETRICIA 2013; 49:1-23. [DOI: 10.1016/s1283-081x(13)65435-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Walters CL, Whitworth JM, Tyra SL, Walsh-Covarrubias JB, Straughn JM. Constructing a Novel Simple LEEP Training Model. J Grad Med Educ 2013; 5:320-2. [PMID: 24404281 PMCID: PMC3693702 DOI: 10.4300/jgme-d-12-00061.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 12/05/2012] [Accepted: 01/19/2013] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Duty hour restrictions and enhanced focus on patient safety have prompted the development of new instruction models for practice of surgical techniques outside the operating room, including models for teaching loop electrosurgical excisional procedure (LEEP), a common procedure that gynecology residents perform to diagnose and manage cervical disease. OBJECTIVE We sought to develop an inexpensive and reusable training model for guided practice opportunities that will improve gynecology residents' LEEP technique. METHODS Polyvinyl chloride, foam, and a polish sausage are used to simulate the basic anatomy of the vagina and cervix. A 2-in-diameter polyvinyl chloride pipe and high-density foam are used to create a realistic representation with the sausage simulating the cervix. An electrosurgical pad is attached to the sausage and a standard operating room electrosurgical generator is used. RESULTS After a brief lecture and demonstration of the LEEP procedure, gynecology residents are positioned at individual stations. Use of 2 to 3 instructors allows for the provision of directions and feedback to residents as they perform the simulated LEEP. During the last 6 years, this model has continued to improve residents' confidence and skills with the procedure. CONCLUSIONS An anatomically accurate LEEP model can not only improve resident knowledge, skills, and confidence, but also improve quality and patient safety. This training model allows residents to refine their surgical skills through guided practice and instructors to monitor performance before residents to perform the procedure on patients.
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Direct colposcopic vision used with the LLETZ procedure for optimal treatment of CIN: results of joint cohort studies. Arch Gynecol Obstet 2013; 288:1087-94. [DOI: 10.1007/s00404-013-2882-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 05/02/2013] [Indexed: 10/26/2022]
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Baldauf JJ, Averous G, Baulon E, Thoma V, Talha-Vautravers A, Sananes N, Akladios Y. Néoplasies intraépithéliales du col. EMC - GYNÉCOLOGIE 2013; 8:1-21. [DOI: 10.1016/s0246-1064(12)54837-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Low cost versus other screening tests to detect cervical cancer or precancer in developing countries. Cochrane Database Syst Rev 2012; 2012:CD010186. [PMCID: PMC6457807 DOI: 10.1002/14651858.cd010186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
This is a protocol for a Cochrane Review (diagnostic). The objectives are as follows: To assess the accuracy of low cost screening tests (visual inspection of the cervix with VIA, VILI or VIAM and care HPV test) to detect underlying CIN2+, CIN3+ or cervical cancer among adult women in developing countries To assess the accuracy of comparator tests (cervical cytology and other HPV tests requiring established laboratory infrastructure) to detect underlying CIN2+, CIN3+ or cervical cancer among adult women in developing countries To assess the relative sensitivity and specificity of the low cost index tests compared to each other and to the comparator tests to detect CIN2+, CIN3+ or cervical cancer among adult women in developing countries
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Gajjar K, Martin-Hirsch PPL, Bryant A. Pain relief for women with cervical intraepithelial neoplasia undergoing colposcopy treatment. Cochrane Database Syst Rev 2012; 10:CD006120. [PMID: 23076919 DOI: 10.1002/14651858.cd006120.pub3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Pre-cancerous lesions of cervix (cervical intraepithelial neoplasia (CIN)) are usually treated with excisional or ablative procedures. In the UK, the NHS cervical screening guidelines suggest that over 80% of treatments should be performed in an outpatient setting (colposcopy clinics). Furthermore, these guidelines suggest that analgesia should always be given prior to laser or excisional treatments. Currently various pain relief strategies are employed that may reduce pain during these procedures. OBJECTIVES The aim of this review was to assess whether the administration of pain relief reduced pain during colposcopy treatment and in the postoperative period. SEARCH METHODS We searched the Cochrane Gynaecological Cancer Review Group Specialised Register, Cochrane Central Register of Controlled Trials (CENTRAL - May 2011) (2011, Issue 2), MEDLINE (1950 to May week 2, 2011), EMBASE (1980 to week 20, 2011) for studies of any design relating to analgesia for colposcopic management. We also searched registers of clinical trials, abstracts of scientific meetings, reference lists of included studies and contacted experts in the field. SELECTION CRITERIA Randomised controlled trials (RCTs) that compared all types of pain relief before, during or after outpatient treatment to the cervix, in adult women with CIN undergoing loop excision, laser ablation, laser excision or cryosurgery in an outpatient colposcopy clinic setting. DATA COLLECTION AND ANALYSIS We independently assessed study eligibility, extracted data and assessed risk of bias. We entered data into RevMan and double checked it for accuracy. Where possible, the results were expressed as mean pain score and standard error of the mean with 95% confidence intervals (CI) and the data were synthesised in a meta-analysis. MAIN RESULTS We included 17 RCTs (1567 women) of varying methodological quality in the review. These trials compared a variety of interventions aimed at reducing pain in women who underwent treatment for CIN, including cervical injection with lignocaine alone, lignocaine with adrenaline, prilocaine with felypressin, oral analgesics (non-steroidal anti-inflammatory drugs (NSAIDs)), inhalation analgesia (gas mixture of isoflurane and desflurane), lignocaine spray, cocaine spray, local application of benzocaine gel, lignocaine-prilocaine cream (EMLA cream) and transcutaneous electrical nerve stimulation (TENS).Most comparisons were restricted to single trial analyses and were under-powered to detect differences in pain scores between treatments that may or may not have been present. There was no significant difference in pain relief between women who received local anaesthetic infiltration (lignocaine 2%; administered as a paracervical or direct cervical injection) and a saline placebo (2 trials; 130 women; MD -13.74; 95% CI -34.32 to 6.83). However, when local anaesthetic was combined with a vasoconstrictor agent (one trial used lignocaine combined with adrenaline while the second trial used prilocaine combined with felypressin), significantly less pain (on visual analogue scores) occurred compared with no treatment (2 trials; 95 women; MD -23.73; 95% CI -37.53 to -9.93). Comparing two preparations of local anaesthetic plus vasoconstrictor, prilocaine combined with felypressin did not differ from lignocaine combined with adrenaline for its effect on pain control (1 trial; 200 women; MD -0.05; 95% CI -0.26 to 0.16). Although the mean observed blood loss score was less with lignocaine plus adrenaline (1.33 ± 1.05) as compared with prilocaine plus felypressin (1.74 ± 0.98), the difference was not clinically significant as the overall scores in both groups were low (1 trial; 200 women; MD 0.41; 95% CI 0.13 to 0.69). Inhalation of gas mixture (isoflurane and desflurane) in addition to standard cervical injection with prilocaine plus felypressin resulted in significantly less pain during the LLETZ (loop excision of the transformation zone) procedure (1 trial; 389 women; MD -7.20; 95% CI -12.45 to -1.95). Lignocaine plus ornipressin resulted in significantly less measured blood loss (1 trial; 100 women; MD -8.75; 95% CI -10.43 to -7.07) and a shorter duration of treatment (1 trial; 100 women; MD -7.72; 95% CI -8.49 to -6.95) than cervical infiltration with lignocaine alone.One meta-analysis found no statistically significant difference in pain using visual analogue scores between women who received oral analgesic and those who received placebo (2 trials; 129 women; MD -3.51; 95% CI -10.03 to 3.01; Analysis 6.1).Cocaine spray was associated with significantly less pain (1 trial; 50 women; MD -28; 95% CI -37.86 to -18.14) and blood loss (1 trial; 50 women; MD 0.04; 95% CI 0 to 0.70) than placebo.No serious adverse events were reported in any of the trials and majority of trials were at moderate or high risk of bias (n = 12). AUTHORS' CONCLUSIONS Based on two small trials, there was no significant difference in pain relief in women receiving oral analgesics compared with placebo or no treatment (129 women; MD -3.51; 95% CI -10.03 to 3.01). We consider this evidence to be of a low to moderate quality. In routine clinical practice, intracervical injection of local anaesthetic with a vasoconstrictor (lignocaine plus adrenaline or prilocaine plus felypressin) appears to be the optimum analgesia for treatment. However, further high-quality, adequately powered trials should be undertaken in order to provide the data necessary to estimate the efficacy of oral analgesics, the optimal route of administration and dose of local anaesthetics.
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Affiliation(s)
- Ketan Gajjar
- Gynaecological Oncology Unit, Royal Preston Hospital, Lancashire Teaching Hospital NHS Trust, Preston, UK.
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Harper DM, Vierthaler SL. Next Generation Cancer Protection: The Bivalent HPV Vaccine for Females. ISRN OBSTETRICS AND GYNECOLOGY 2011; 2011:457204. [PMID: 22111017 PMCID: PMC3216348 DOI: 10.5402/2011/457204] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Accepted: 07/13/2011] [Indexed: 12/27/2022]
Abstract
Nearly a half a million women throughout the world develop cervical cancer every year Parkin and Bray ("Chapter 2. The burden of HPVrelated cancers," Vaccine, vol. 24, no. 3, pp. S11-S25, 2006); 80% of these women are in countries without a quality-assured cytology screening program. It is in this setting that Cervarix could reduce the incidence of cervical cancer to about 9.5/100,000 women. New evidence indicates that this might be able to be accomplished with a single dose of Cervarix, a great advantage to public health implementation programs Kreimer et al. ("Proof-of-principle evaluation of the efficacy of fewer than three doses of a bivalent HPV16/18 vaccine, The Journal of the National Cancer Institute, vol. 103, no. 19, pp. 1444-1451, 2011). In countries with screening programs, adenocarcinoma is the most difficult to detect and treat with later-stage presentation and higher mortality Smith et al. ("The rising incidence of adenocarcinoma relative to squamous cell carcinoma of the uterine cervix in the United States-a 24-year population-based study," Gynecologic Oncology, vol. 78, no. 2, pp. 97-105, 2000) and Gunnell et al. ("A longitudinal Swedish study on screening for squamous cell carcinoma and adenocarcinoma: evidence of effectiveness and overtreatment," Cancer Epidemiology Biomarkers and Prevention, vol. 16, no. 12, pp. 2641-2648, 2007). With additional cross-protection to HPV 31, 33, and 45 and protection against HPV 16 and 18 lasting at least 9.4 years, Cervarix may reduce adenocarcinomas in screened populations by more than 90%. This paper will detail the evidence about the efficacy, immunogenicity, and safety of Cervarix in the studied populations contrasting public health goals with individual health options.
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Affiliation(s)
- Diane M. Harper
- Center of Excellence, Women's Health, University of Missouri-Kansas City School of Medicine, 7900 Lee's Summit Road, Kansas City, MO 64139, USA
| | - Stephen L. Vierthaler
- Center of Excellence, Women's Health, University of Missouri-Kansas City School of Medicine, 7900 Lee's Summit Road, Kansas City, MO 64139, USA
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Abstract
Cervical cancer remains the second commonest cancer among women worldwide, and more than 85% of the global burden of this disease occurs in the developing world. HIV-infected women have a higher likelihood of developing persistent high-risk human papillomavirus (HPV) infection, precancer, and invasive cervical cancer than seronegative women. Although highly effective primary and secondary prevention strategies are currently available, they remain inaccessible to the vast majority of women. Because of their simplicity and affordability, see-and-treat cervical cancer screening modalities have the potential to substantially improve women's access to cancer prevention, as well as to create much needed infrastructure for future molecular-based cervical screening and HPV vaccination programs. Additional data addressing the effectiveness of see-and-treat approaches for HIV-infected women are urgently needed. Studies informing best practice guidelines on when to start, when to stop, and how frequently to screen HIV-infected women within the see-and-treat paradigm would be of great value.
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Mishra GA, Pimple SA, Shastri SS. An overview of prevention and early detection of cervical cancers. Indian J Med Paediatr Oncol 2011; 32:125-32. [PMID: 22557777 PMCID: PMC3342717 DOI: 10.4103/0971-5851.92808] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Cervical cancer still remains the most common cancer affecting the Indian women. India alone contributes 25.41% and 26.48% of the global burden of cervical cancer cases and mortality, respectively. Ironically, unlike most other cancers, cervical cancer can be prevented through screening by identifying and treating the precancerous lesions, any time during the course of its long natural history, thus preventing the potential progression to cervical carcinoma. Several screening methods, both traditional and newer technologies, are available to screen women for cervical precancers and cancers. No screening test is perfect and hence the choice of screening test will depend on the setting where it is to be used. Similarly, various methods are available for treatment of cervical precancers and the selection will depend on the cost, morbidity, requirement of reliable biopsy specimens, resources available, etc. The recommendations of screening for cervical cancer in the Indian scenario are discussed.
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Affiliation(s)
- Gauravi A. Mishra
- Department of Preventive Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Sharmila A. Pimple
- Department of Preventive Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Surendra S. Shastri
- Department of Preventive Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
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