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Wei MY, Yeung JM, Faragher IG. It's time to consider screening for anal cancer in high risk populations. ANZ J Surg 2024. [PMID: 38874278 DOI: 10.1111/ans.19133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/15/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Affiliation(s)
- Matthew Y Wei
- Department of Colorectal Surgery, Western Health, Footscray, Victoria, Australia
- Department of Surgery, Western Precinct, University of Melbourne, Parkville, Victoria, Australia
| | - Justin M Yeung
- Department of Colorectal Surgery, Western Health, Footscray, Victoria, Australia
- Department of Surgery, Western Precinct, University of Melbourne, Parkville, Victoria, Australia
| | - Ian G Faragher
- Department of Colorectal Surgery, Western Health, Footscray, Victoria, Australia
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2
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Spindler L, Etienney I, Abramowitz L, de Parades V, Pigot F, Siproudhis L, Adam J, Balzano V, Bouchard D, Bouta N, Bucau M, Carlo A, Chanal J, Charpentier C, Clifford G, Draullette M, Fathallah N, Ferré V, Fléjou JF, Fouéré S, Higuero T, Kassouri L, Kurt S, Laurain A, Leclerc E, Lepiller Q, Lesage AC, Mège D, Ménard A, Merle P, Mortreux P, Noël C, Péré H, Prétet JL, Roland D, Staumont G, Tracanelli L, Vuitton L, Wylomanski S, Zaegel-Faucher O. Screening for precancerous anal lesions linked to human papillomaviruses: French recommendations for clinical practice. Tech Coloproctol 2024; 28:23. [PMID: 38198036 PMCID: PMC10781838 DOI: 10.1007/s10151-023-02899-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/01/2023] [Indexed: 01/11/2024]
Abstract
In France, about 2000 new cases of anal cancer are diagnosed annually. Squamous cell carcinoma is the most common histological type, mostly occurring secondary to persistent HPV16 infection. Invasive cancer is preceded by precancerous lesions. In addition to patients with a personal history of precancerous lesions and anal cancer, three groups are at very high risk of anal cancer: (i) men who have sex with men and are living with HIV, (ii) women with a history of high-grade squamous intraepithelial lesions (HSILs) or vulvar HPV cancer, and (iii) women who received a solid organ transplant more than 10 years ago. The purpose of screening is to detect HSILs so that they can be treated, thereby reducing the risk of progression to cancer. All patients with symptoms should undergo a proctological examination including standard anoscopy. For asymptomatic patients at risk, an initial HPV16 test makes it possible to target patients at risk of HSILs likely to progress to cancer. Anal cytology is a sensitive test for HSIL detection. Its sensitivity is greater than 80% and exceeds that of proctological examination with standard anoscopy. It is indicated in the event of a positive HPV16 test. In the presence of cytological abnormalities and/or lesions and a suspicion of dysplasia on clinical examination, high-resolution anoscopy is indicated. Performance is superior to that of proctological examination with standard anoscopy. However, this technique is not widely available, which limits its use. If high-resolution anoscopy is not possible, screening by a standard proctological examination is an alternative. There is a need to develop high-resolution anoscopy and triage tests and to evaluate screening strategies.
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Affiliation(s)
- L Spindler
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
| | - I Etienney
- Service de Proctologie, Hôpital Diaconesses-Croix Saint Simon, Paris, France
| | - L Abramowitz
- Service de Proctologie, APHP Hôpital Bichat-Claude Bernard and Ramsay GDS Clinique Blomet, Paris, France
| | - V de Parades
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - F Pigot
- Service de Proctologie, Hôpital Bagatelle, Talence, France
| | - L Siproudhis
- Service d'Hépato-Gastroentérologie, CHU Pontchaillou, Rennes, France
| | - J Adam
- Service d'Anatomopathologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - V Balzano
- Service de Gastroentérologie et Oncologie Digestive, CHU Tours, Tours, France
| | - D Bouchard
- Service de Proctologie, Hôpital Bagatelle, Talence, France
| | - N Bouta
- Service d'Hépato-Gastroentérologie et de Proctologie, Clinique La Croix du Sud, Quint-Fonsegrives, France
| | - M Bucau
- Service d'Anatomopathologie, AP-HP Hôpital Bichat-Claude Bernard, Paris, France
| | - A Carlo
- Service d'Hépato-Gastroentérologie, CHU Pontchaillou, Rennes, France
| | - J Chanal
- Service de Dermatologie, AP-HP, Hôpital Tarnier, Paris, France
| | - C Charpentier
- Département de Virologie, AP-HP, Hôpital Bichat-Claude Bernard, INSERM, IAME, Université de Paris, Paris, France
| | - G Clifford
- Early Detection, Prevention, and Infections Branch, International Agency for Research On Cancer, Lyon, France
| | - M Draullette
- Service d'Hépato-Gastroentérologie et Assistance Nutritive, AP-HP, Hôpital Beaujon, Clichy, France
| | - N Fathallah
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - V Ferré
- Département de Virologie, AP-HP, Hôpital Bichat-Claude Bernard, INSERM, IAME, Université de Paris, Paris, France
| | - J-F Fléjou
- Service d'Anatomopathologie, Cerbapath, Paris, France
| | - S Fouéré
- Service de Dermatologie, AP-HP, Hôpital Saint-Louis, Université de Paris, Paris, France
- Centre des Maladies Sexuellement Transmises, AP-HP, Hôpital Saint-Louis, Paris, France
| | - T Higuero
- Gastro-entérologue, proctologue medico-chirurgical, Beausoleil, France
| | - L Kassouri
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - S Kurt
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - A Laurain
- Service de Proctologie, APHP Hôpital Bichat-Claude Bernard and Ramsay GDS Clinique Blomet, Paris, France
| | - E Leclerc
- Service d'Hépato-Gastroentérologie, CHU Clermont-Ferrand, Inserm, 3iHP, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Q Lepiller
- Laboratoire de Virologie, CHU de Besançon, Besançon, France
| | - A-C Lesage
- Service de Proctologie, Hôpital Diaconesses-Croix Saint Simon, Paris, France
| | - D Mège
- Service de Chirurgie Digestive, Université d'Aix Marseille, AP-HM, Hôpital de la Timone, Marseille, France
| | - A Ménard
- Institut Hospitalo-Universitaire Méditerranée Infection, AP-HM, Hôpital Nord, Université d'Aix Marseille, Marseille, France
| | - P Merle
- Service d'Hépato-Gastroentérologie et de Proctologie, Clinique La Croix du Sud, Quint-Fonsegrives, France
| | - P Mortreux
- Service de Gastroentérologie, Centre Hospitalier de Bethune Beuvry, Beuvry, France
| | - C Noël
- Service d'Hépato-Gastroentérologie, CHU de Brest, Brest, France
| | - H Péré
- Laboratoire de Virologie, Service de Microbiologie, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
- Functional Genomics of Solid Tumors (FunGeST), Centre de Recherche des Cordelier, INSERM, Université de Paris, Sorbonne Université, Paris, France
| | - J-L Prétet
- EA3181, Université de Franche-Comté, LabEx LipSTIC ANR-11-LABX-0021, Besançon, France
- Centre National de Référence Papillomavirus, CHU de Besançon, Besançon, France
| | - D Roland
- Service de Proctologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - G Staumont
- Service d'Hépato-Gastroentérologie et de Proctologie, Clinique La Croix du Sud, Quint-Fonsegrives, France
| | - L Tracanelli
- Service de Proctologie, Hôpital Bagatelle, Talence, France
| | - L Vuitton
- Service de Gastroentérologie, CHU de Besançon, Université de Bourgogne Franche-Comté, Besançon, France
| | - S Wylomanski
- Service de Gynécologie, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - O Zaegel-Faucher
- Service d'Immuno-Hématologie Clinique, AP-HM, CHU Sainte-Marguerite, Marseille, France
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Cairns CA, Cross RK, Khambaty M, Bafford AC. Monitoring Patients With Inflammatory Bowel Disease at High Risk of Anal Cancer. Am J Gastroenterol 2024; 119:81-86. [PMID: 37721307 DOI: 10.14309/ajg.0000000000002503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Anal cancer is a rare but deadly disease that disproportionately affects patients with inflammatory bowel disease (IBD). Rates of adenocarcinoma and human papillomavirus-related squamous cell carcinoma have been consistently demonstrated to be higher in patients with ulcerative colitis and Crohn's disease. Despite this increased risk, uniform screening, diagnosis, and treatment algorithms are lacking. This review describes the most recent literature surrounding anal cancer in the IBD population as well as the unique challenges inherent in diagnosing and treating this population. We conclude by proposing a new screening motif based off literature review and multidisciplinary clinical experience that aims to increase early detection of anal cancers in the IBD population.
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Affiliation(s)
- Cassandra A Cairns
- Department of Surgery, Division of General and Oncologic Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Raymond K Cross
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Mariam Khambaty
- Department of Medicine, Division of Infectious Diseases, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Andrea C Bafford
- Department of Surgery, Division of Colon and Rectal Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Nyitray AG, McAuliffe TL, Liebert C, Swartz MD, Deshmukh AA, Chiao EY, Weaver L, Almirol E, Kerman J, Schneider JA, Wilkerson JM, Hwang LY, Smith D, Hazra A. The accuracy of anal self- and companion exams among sexual minority men and transgender women: The Prevent Anal Cancer Palpation Study. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.10.19.23297209. [PMID: 37905024 PMCID: PMC10615006 DOI: 10.1101/2023.10.19.23297209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Background Squamous cell carcinoma of the anus (SCCA) annual incidence among sexual minority men (SMM) with and without HIV is 85/100,000 and 19/100,000 persons, respectively, which is significantly higher than the overall incidence (2/100,000). Since SCCA tumours average ≥30 mm at diagnosis, we assessed the accuracy of individuals to self-detect anal abnormalities. Methods The study enrolled 714 SMM and transgender women (SMM/TW), aged 25 to 81 years, in Chicago, Illinois and Houston, Texas during 2020-2022. Individuals were taught the anal self- and companion examinations (ASE/ACE). Then, a clinician performed a digital anal rectal examination (DARE) before participants conducted the ASE or ACE. Accuracy was measured along with factors associated with ASE/ACE and DARE concordance. Findings The median age was 40 years (interquartile range, 32-54), 36.8% were living with HIV, and 47.0%, 23.4%, and 23.0% were non-Hispanic white, non-Hispanic Black, and Hispanic. Clinicians detected 245 individuals with abnormalities (median diameter 3 mm). Sensitivity and specificity of the ASE/ACE was 59.6% (95%CI 53.5-65.7%) and 80.2% (95%CI 76.6-83.8%), respectively. Overall concordance was 0.73 (95% CI 0.70-0.76) between ASE/ACE and DARE and increased with increasing anal canal lesion size (p=0.02). However, concordance was lower for participants aged ≥55 years (compared to 25-34 years) and when the ASE/ACE trainer was a lay person rather than a clinician. Interpretation SMM/TW who complete an ASE or ACE are likely to detect SCCA at an early stage when malignant lesions are much smaller than the current median dimension at presentation of ≥30 mm. Funding National Cancer Institute. Research in context Evidence before this study: While squamous cell carcinoma of the anus (SCCA) incidence is substantially elevated in people with HIV, there are currently no consensus recommendations on how to screen for it, nor is there widespread technological infrastructure for one prevailing method, high-resolution anoscopy. In the absence of screening programs, the size of SCCA tumours at diagnosis are > 30 mm. We searched PubMed for articles between January 1, 2000 and June 15, 2023 using the search terms 'anus neoplasm' and 'self-examination'. We found no studies assessing the accuracy of self-examinations to detect anal masses other than our prior feasibility study.Added value of this study: The primary goal of the Prevent Anal Cancer Palpation Study was to assess the accuracy of lay self-examinations and companion examinations to recognise abnormalities in the anal region. Clinicians conducted a digital anal rectal examination and recorded all lesions observed at the perianus or anal canal. The median size of lesions was 3 mm. Participants conducted lay examinations and these results were judged against a clinician's examination. The sensitivity and specificity of the lay examinations, for any lesion at the anal canal or perianal region was 59.6% and 80.1%, respectively. As lesions increased in size, concordance increased between clinician's exam and the lay exam.Implications of all the available evidence: It is now known that high-resolution anoscopy can reduce the risk for SCCA but the infrastructure using this technology is very limited in high-resource settings and almost non-existent in low resource settings, especially where HIV prevalence is highest. The evidence suggests that self- and partner examination of the anal region is feasible and that lay persons can detect lesions that are much smaller than the prevailing size of SCCA tumours.
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Abstract
This chapter provides an overview of anal cancer and contemporary approaches for anal precancer detection, beginning with a discussion of the biology and natural history of anal squamous cell carcinoma, the predominant human papillomavirus -associated histologic subtype of anal cancer. This section is followed by a description of the epidemiology of anal cancer, including trends in incidence and mortality, a discussion of populations with elevated risk for anal cancer and an overview of associated risk factors. The remainder of the chapter provides the most up-to-date evidence on tools and approaches for anal cancer prevention, screening, and early detection; including, the role of human papillomavirus vaccination for primary prevention; anal cytology, high resolution anoscopy and novel biomarkers for secondary prevention; and digital anal-rectal examination for early detection.
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Affiliation(s)
- Camryn M Cohen
- Division of Cancer Epidemiology & Genetics, National Cancer Institute, Rockville, Maryland
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Woodward SC, Tyson AH, Martin SJ. Do we DARE? Improving digital ano-rectal examination in men who have sex with men living with HIV: a quality improvement initiative. Sex Health 2022; 19:230-232. [PMID: 35705255 DOI: 10.1071/sh21247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/31/2022] [Indexed: 11/23/2022]
Abstract
Men who have sex with men (MSM) living with HIV are at increased risk of anal cancer and annual screening via digital ano-rectal examination (DARE) is recommended. Baseline audit (Cycle 1) was undertaken of the medical records of MSM living with HIV aged ≥50years (n =85) from 1 January 2017 to 31 December 2018, in line with guidelines at the time. Data collection included whether DARE was discussed and offered, and whether DARE was accepted or declined. We provided staff training and altered clinic proformas aiming to increase DARE. Audit Cycle 2 (Cycle 2) was undertaken of eligible MSM (n =86) who attended between 1 January 2019 to 31 December 2020. DARE frequency increased from 4.7% in Cycle 1 to 41.8% in Cycle 2 (P <0.001) and discussion and offer of DARE increased from 8% to 64% in Cycle 2 (P <0.001).
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Affiliation(s)
| | - Alexandra H Tyson
- Canberra Sexual Health Centre, PO Box 11, Woden, ACT 2606, Australia; and Medical School, Australian National University, Acton, ACT 2601, Australia
| | - Sarah J Martin
- Canberra Sexual Health Centre, PO Box 11, Woden, ACT 2606, Australia; and Medical School, Australian National University, Acton, ACT 2601, Australia
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A cross-sectional survey on attitudes of men who have sex with men towards anal self-examination for detection of anal syphilis. Sci Rep 2022; 12:8962. [PMID: 35624185 PMCID: PMC9142515 DOI: 10.1038/s41598-022-12881-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 04/27/2022] [Indexed: 11/08/2022] Open
Abstract
Studies suggest men who have sex with men (MSM) practising receptive anal sex are more likely to present with secondary syphilis, implying primary anorectal lesions are likely to be missed. If men could detect anorectal lesions in the primary stage by regular anal self-examination (ASE), transmission could be reduced by early diagnosis and treatment. We aimed to explore the attitudes of MSM on performing ASE to detect primary anorectal syphilis. An online anonymous cross-sectional survey among MSM over 18 years of age living in Australia, was conducted between July and November 2020 and recruitment was from a sexual health clinic and social media. A total of 568 MSM completed the survey (median age: 34 [IQR 27–45]): 32% (183) had previously performed ASE. Among 66% (374) who had never performed ASE, 68% (250) would consider performing ASE in the future with a preferred median frequency of 2 times per 4 weeks (IQR 1–4), whilst men who were already performing ASE were performing it at median 1 per 4 weeks (IQR 0.2–3). Almost two-thirds of MSM who had never performed ASE were willing to adopt ASE practice in the future. Studies are required to determine the effectiveness of ASE for syphilis detection.
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Barroso LF, Stier EA, Hillman R, Palefsky J. Anal Cancer Screening and Prevention: Summary of Evidence Reviewed for the 2021 Centers for Disease Control and Prevention Sexually Transmitted Infection Guidelines. Clin Infect Dis 2022; 74:S179-S192. [PMID: 35416975 DOI: 10.1093/cid/ciac044] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In June 2019 the Centers for Disease Control and Prevention (CDC) convened an advisory group to assist in development of the 2021 CDC sexually transmitted infections (STI) guidelines. The advisory group on anal cancer screening and prevention met to formulate key questions in this field. The group examined published literature and abstracts to assess evidence and give recommendations for development of the CDC guidelines. This article summarizes key questions, evidence, recommendations, and areas for further research for the screening, diagnosis, and prevention of anal cancer.
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Affiliation(s)
- Luis F Barroso
- Internal Medicine/Infectious Diseases, Wake Forest University Health Sciences, Winston-Salem, North CarolinaUSA
| | - Elizabeth A Stier
- Obstetrics and Gynecology, Boston University School of Medicine, Boston Medical Center, Boston, MassachusettsUSA
| | - Richard Hillman
- Dysplasia and Anal Cancer Services, St Vincent's Hospital, Darlinghurst, Sydney, Australia
| | - Joel Palefsky
- Infectious Diseases, University of California, San Francisco, CaliforniaUSA
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Ejaz M, Mubarak M, Ali TS, Andersson S, Ekström AM. Human papillomavirus-associated anal squamous intraepithelial lesions in men who have sex with men and transgender women living with and without HIV in Karachi Pakistan: implications for screening and prevention. BMC Infect Dis 2021; 21:1163. [PMID: 34789177 PMCID: PMC8597180 DOI: 10.1186/s12879-021-06850-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 11/01/2021] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Anal squamous intraepithelial lesions (ASIL), strongly related to human papilloma virus (HPV) infection, is more prevalent among men who have sex with men (MSM). However, no such data are available for Pakistan yet, and neither HPV vaccination nor anal-cytology screening is implemented in Pakistan. The purpose of this first ever study was to assess the prevalence of HPV-related anal cytological abnormalities among MSM and transgender women living with and without HIV infection in Pakistan. METHODS We conducted a cross-sectional study from March 2016 to November 2017 at sexual health centers run by the Perwaaz Trust and the National AIDS Control Program in Karachi. The study enrolled MSM and transgender women aged greater-than-and-equal-to-18-years who reported anal sex in the preceding 6 months. We collected two anal samples for liquid-based cytology and HPV type testing by PCR, and socio-demographic and behavioral data were collected through face-to face interviews. ASIL and its associations with biological and behavioral risk factors were analyzed through Cox regression for prevalence ratios (PR) and corresponding 95% confidence intervals (CIs). RESULTS Out of 271 qualifying participants, 79% were MSM and 21% transgender women. The mean age was 28.8 (± 8) years. Almost 35% (93/271) of the study population had ASIL detected, ASIL was significantly more common among participants living with HIV than in HIV negative ((50/118) 42.4%; vs. (43/153) 28.1%) (p ≤ 0.001). Among ASIL, 66% (61/93) had low-grade squamous intraepithelial lesions (LSIL), and 3.6% (3/93) had high-grade squamous intraepithelial lesions (HSIL). The overall, HPV16 positivity was 35.5% (33/93) among all abnormal anal lesions and all 3 HSIL were HPV16 positive, however, HPV16 positivity could show its association with ASIL detection in univariate model only (PRcrude: 2.11(1.39-3.18)). Moreover, any HR-HPV type (PR 3.04; 95% CI 1.75-5.26), concurrent sexually transmitted infection (STI) (2.13; (1.28-3.55)) and HIV + /HPV + coinfection (1.75; (1.07-2.88)) remained independently associated with ASIL in the multivariate model. CONCLUSIONS Abnormal anal cytology among MSM and transgender is prevalent enough to consider optimal screening regimens. Further studies are required to see if periodic anal cytology can be made part of HIV care and treatment programs among MSM in Pakistan.
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Affiliation(s)
- Muslima Ejaz
- Department of Global Public Health, Global and Sexual Health Research Group, Karolinska Institutet, Widerströmska Huset, Tomtebodavägen 18A, 171 77, Stockholm, Sweden. .,Department of Community Health Sciences, Aga Khan University (AKU), Stadium Road, P.O. Box 3500, Karachi, 74800, Pakistan.
| | - Muhammad Mubarak
- Department of Cytology and Histopathology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | | | - Sören Andersson
- Department of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Anna Mia Ekström
- Department of Global Public Health, Global and Sexual Health Research Group, Karolinska Institutet, Widerströmska Huset, Tomtebodavägen 18A, 171 77, Stockholm, Sweden
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Aung ET, Fairley CK, Ong JJ, Bilardi JE, Chen MY, Chow EPF, Phillips TR. Exploring the attitudes of men who have sex with men on anal self-examination for early detection of primary anorectal syphilis: a qualitative study. BMC Infect Dis 2021; 21:982. [PMID: 34544383 PMCID: PMC8453991 DOI: 10.1186/s12879-021-06686-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/13/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Studies show men who have sex with men (MSM) practising receptive anal sex are more likely to present with secondary syphilis, suggesting anorectal primary lesions are being missed. Regular anal self-examination might be able to detect anorectal syphilis lesions, hence potentially reducing transmission. This study aimed to explore the attitudes of MSM on performing anal self-examination to detect primary syphilis. METHODS In this qualitative study, 20 MSM over 18 years of age were purposively sampled from a sexual health clinic to participate in semi-structured interviews. Interviews were recorded, transcribed verbatim and data analysed thematically. RESULTS Four major themes and 12 sub-themes were generated from the study: (1) reasons for performing anal self-examination, (2) preferred educational resources for anal self-examination, (3) attitudes towards partner anal examination, and (4) acceptability of anal self-examination. Most participants had performed some form of anal self-examination in the past, and, just over half performed regularly for mostly health-related concerns. Most participants who infrequently or never performed anal self-examination were agreeable to perform regularly if it was recommended by health professionals with appropriate guidance. Participants preferred education on anal self-examination from health professionals and trusted online learning resources. CONCLUSION Our study showed MSM were agreeable to anal self-examination however would like to receive education and training to gain more confidence in conducting anal self-examination as a screening tool. Further studies are required to explore the adherence and acceptability of anal self-examination for syphilis prior to studies examining efficacy. The study provides foundation for any future policy aiming at utilising anal self-examination as a screening tool for syphilis among MSM.
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Affiliation(s)
- Ei T Aung
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia.
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia.
| | - Christopher K Fairley
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Jason J Ong
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Jade E Bilardi
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
- Department of General Practice, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Marcus Y Chen
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Eric P F Chow
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Tiffany R Phillips
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
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11
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Blair KJ, Martínez-Vernaza S, Ordóñez-Blanco IT, Hernandez W, Quiroga C, Lowenstein E, Valderrama-Beltrán SL, Clark J, Lake JE, Juillard C, Lombana Amaya LJ. Screening With Anal Cytology in Colombia: Initial Experience and Need for High-Resolution Anoscopy. J Surg Res 2021; 267:374-383. [PMID: 34216798 DOI: 10.1016/j.jss.2021.05.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Men who have sex with men (MSM) living with human immunodeficiency virus (HIV) are at increased risk of anal cancer. Anal cytology can be used to screen for dysplasia, with high-resolution anoscopy (HRA) required for diagnostic confirmation. We describe the impact lack of HRA had on management of abnormal screening results in Bogotá, Colombia. MATERIAL AND METHODS This retrospective cohort study includes MSM with HIV who underwent anal cytology screening between January 2019February 2020, with colorectal surgery (CRS) follow-up through July 2020. Cytology results included atypical squamous cells of undetermined significance (ASC-US), low-grade squamous intraepithelial lesion (LSIL), and high-grade squamous intraepithelial lesion (HSIL). Categorical and continuous variables were compared via Fisher's exact test and Wilcoxon rank-sum, respectively. RESULTS Of 211 MSM screened, 68 had abnormal cytology: ASC-US (n = 23), LSIL (n = 41), HSIL (n = 4). Sixty (88.2%) were referred to CRS, and 51 (75.0%) attended ≥ 1 appointment. At initial assessment, 17 were referred for anal exam under anesthesia (EUA) for tissue resection, and 21 for rectosigmoidoscopy. Having perianal condyloma was associated with recommendation for EUA (P < 0.001), while cytology grade of dysplasia was not (P = 0.308). Eleven (16.2%) underwent EUA for condyloma resection. CONCLUSIONS Few studies have described anal cancer screening in settings without HRA. We found lack of HRA limited management of abnormal cytology in Colombia. Those with condyloma underwent resection, but HRA remains necessary to localize and treat microscopic disease. Next steps include implementation of HRA in order to further develop the anal cancer screening program for MSM with HIV in Bogotá.
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Affiliation(s)
- Kevin J Blair
- South American Program in HIV Prevention Research (SAPHIR), University of California Los Angeles (UCLA), Los Angeles, California; Program for the Advancement of Surgical Equity (PASE), Department of Surgery, UCLA, Los Angeles, California.
| | - Samuel Martínez-Vernaza
- Unidad de Infectología, Departamento de Medicina Interna, Hospital Universitario San Ignacio (HUSI), Bogotá, Colombia
| | - Ivonne Tatiana Ordóñez-Blanco
- Unidad de Infectología, Departamento de Medicina Interna, Hospital Universitario San Ignacio (HUSI), Bogotá, Colombia; Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - William Hernandez
- School of Nursing, UCLA, Los Angeles, California; DAP Health, Palm Springs, California
| | - Camilo Quiroga
- Unidad de Infectología, Departamento de Medicina Interna, Hospital Universitario San Ignacio (HUSI), Bogotá, Colombia; Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Ellen Lowenstein
- Unidad de Infectología, Departamento de Medicina Interna, Hospital Universitario San Ignacio (HUSI), Bogotá, Colombia
| | - Sandra Liliana Valderrama-Beltrán
- Unidad de Infectología, Departamento de Medicina Interna, Hospital Universitario San Ignacio (HUSI), Bogotá, Colombia; Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Jesse Clark
- South American Program in HIV Prevention Research (SAPHIR), University of California Los Angeles (UCLA), Los Angeles, California; Division of Infectious Diseases, Department of Medicine, UCLA, Los Angeles, California
| | - Jordan E Lake
- South American Program in HIV Prevention Research (SAPHIR), University of California Los Angeles (UCLA), Los Angeles, California; Department of Internal Medicine, McGovern Medical School, The University of Texas Health Sciences Center at Houston, Houston, Texas
| | - Catherine Juillard
- Program for the Advancement of Surgical Equity (PASE), Department of Surgery, UCLA, Los Angeles, California
| | - Luis Jorge Lombana Amaya
- Unidad de Coloproctología, Departamento de Cirugía General, HUSI, Pontificia Universidad Javeriana, Bogotá, Colombia
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Clinical characteristics and prognosis of anal squamous cell carcinoma: a retrospective audit of 144 patients from 11 cancer hospitals in southern China. BMC Cancer 2020; 20:679. [PMID: 32693779 PMCID: PMC7372759 DOI: 10.1186/s12885-020-07170-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/12/2020] [Indexed: 11/25/2022] Open
Abstract
Background The incidence of anal squamous cell carcinoma (SCC) has been steadily growing globally in the past decade. Clinical data on anal SCC from China are rare. We conducted this study to describe the clinical and epidemiological characteristics of anal SCC in China and explore prognostic factors of outcomes among patients with anal SCC. Methods We audited demographic characteristics, relevant symptoms, risk factors, treatment modalities and outcomes for patients diagnosed with anal SCC at 11 medical institutions in China between January 2007 and July 2018. Results A total of 144 patients (109 females) were diagnosed with SCC during this period. Median age at initial diagnosis was 52.0 (interquartile range: 46.0–61.8) years. The most common symptoms were bleeding (n = 93, 64.6%), noticing a lump (n = 49, 34.0%), and pain (n = 47, 32.6%). The proportion of patients at the American Joint Committee on Cancer (AJCC) stages I-IV were 10 (6.9%), 22 (15.3%), 61 (42.4%) and 8 (5.6%), respectively, and AJCC stages in 43 (29.9%) patients were unknown. Thirty-six patients (25.0%) underwent abdominoperineal resection initially. Univariable analysis showed that T stage predicted recurrence-free survival (RFS) (Hazard ratio [HR] = 3.03, 95% Confidence interval [CI]: 1.10–8.37, p = 0.032), and age group (HR = 2.90, 95% CI: 1.12–7.49, p = 0.028), AJCC stage (HR = 4.56, 95% CI: 1.02–20.35, p = 0.046), and N stage (HR = 3.05, 95% CI: 1.07–8.74, p = 0.038) predicted overall survival (OS). Conclusions T stage was identified as prognostic factor of RFS, and age, AJCC stage, and N stage were identified as prognostic factors of OS. Improving symptom awareness and earlier presentation among patients potentially at risk for anal SCC should be encouraged. Familiarity with the standard treatment among health care providers in China should be further improved.
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Nyitray AG, D'Souza G, Stier EA, Clifford G, Chiao EY. The Utility of Digital Anal Rectal Examinations in a Public Health Screening Program for Anal Cancer. J Low Genit Tract Dis 2020; 24:192-196. [PMID: 31972661 PMCID: PMC7147422 DOI: 10.1097/lgt.0000000000000508] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES There are no uniform screening recommendations for anal cancer. Medical practice guidelines are now available on the use of Digital Anal Rectal Examinations (DARE) for the detection of anal cancer; however, because screening can result in more harm than benefit, our objective was to assess the evidence for use of DARE as a public health screening tool. MATERIALS AND METHODS We conducted a current critical appraisal of anal cancer literature using World Health Organization criteria for assessing the potential utility of a public health screening program. RESULTS Digital Anal Rectal Examination satisfies most, but not all, World Health Organization criteria for a public health program that seeks to detect early invasive anal cancer in populations at high risk for anal cancer, most notably HIV-positive men who have sex with men; however, DARE is not appropriate when facilities for treatment are nonexistent. In addition, there are insufficient data on DARE sensitivity and specificity. CONCLUSIONS The mildly invasive nature of DARE, limited likelihood of adverse procedure-related events, cost-effectiveness and patient acceptability, as well as wide availability of DARE support consideration of its integration into screening for populations at high risk of anal cancer, especially HIV-positive men who have sex with men.
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Affiliation(s)
- Alan G. Nyitray
- Clinical Cancer Center and Center for AIDS Intervention Research, Medical College of Wisconsin, Milwaukee, WI
| | - Gypsyamber D'Souza
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Elizabeth A. Stier
- Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, MA
| | - Gary Clifford
- International Agency for Research on Cancer, Lyon, France
| | - Elizabeth Y. Chiao
- Section Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, TX
- Center for Innovations in Quality, Effectiveness, and Safety, Michael E. DeBakey VA Medical Center, Houston, TX
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Lass E, Raveendran L. Educational implications of changing the guidelines for the digital rectal examination. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2019; 65:838-840. [PMID: 31722918 PMCID: PMC6853337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Elliot Lass
- Family medicine resident in the Integrated 3-Year Family Medicine Residency program at Mount Sinai Hospital in the Department of Family and Community Medicine and an MSc candidate in the Institute of Health Policy, Management and Evaluation with a focus in System Leadership and Innovation at the University of Toronto in Ontario
| | - Lucshman Raveendran
- Medical student in the Faculty of Medicine and an MSc candidate in the Institute of Health Policy, Management and Evaluation with a focus in System Leadership and Innovation at the University of Toronto
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15
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Lass E, Raveendran L. [Not Available]. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2019; 65:e497-e499. [PMID: 31722931 PMCID: PMC6853355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Elliot Lass
- Résident en médecine familiale dans le programme de résidence de trois ans en médecine de famille intégrée au Département de médecine familiale et communautaire de l'hôpital Mount Sinaï, et candidat à la maîtrise ès sciences à l'Institute of Health Policy, Management and Evaluation, avec une spécialisation en leadership et innovation systémiques à l'Université de Toronto en Ontario
| | - Lucshman Raveendran
- Étudiant en médecine à la Faculté de médecine et candidat à la maîtrise ès sciences à l'Institute of Health Policy, Management and Evaluation, avec une spécialisation en leadership et innovation systémiques à l'Université de Toronto
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Sociodemographic Predictors of Anal Cancer Screening and Follow-up in Human Immunodeficiency Virus-Infected Individuals. Cancer Nurs 2019; 41:424-430. [PMID: 28723723 DOI: 10.1097/ncc.0000000000000524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Anal cancer in the United States is generally rare; however, human immunodeficiency virus (HIV)-infected individuals are 28 times more likely to be given a diagnosis of anal cancer than the general population. OBJECTIVE The aim of this study was to examine the rates and sociodemographic predictors of anal cancer screening and follow-up anoscopy in a sample of HIV-infected individuals. METHODS Data for this study (n = 200) were derived from a retrospective chart review of randomly selected HIV-infected individuals. Data analyses included Pearson's correlation coefficient statistic to examine bivariate associations and logistic regression modeling for prediction of anal Papanicolaou test screening and follow-up anoscopy. RESULTS Screening rates and follow-up after an abnormal anal Pap test were low. Women were less likely to be screened for anal cancer (odds ratio [OR], 0.244; P = .007). Men who have sex with men were almost 4 times more likely to be screened for anal cancer (OR, 3.7; P = .02). Men who have sex with men were 6 times more likely to have follow-up after an abnormal anal Pap test compared with heterosexual men or women of any sexual orientation (OR, 6.88; P = .002). CONCLUSIONS High-risk groups for anal cancer should be targeted for preventative measures as part of a cancer prevention plan to decrease the personal and clinical burden associated with anal cancer. IMPLICATIONS FOR PRACTICE Cancer prevention is a multistep process that requires screening and follow-up efforts, where healthcare providers play a vital role in these efforts. Findings from this study can inform strategies to improve screening and follow-up rates in HIV-infected individuals.
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Koskan AM, Brennhofer SA, Helitzer DL. Screening for anal cancer precursors among patients living with HIV in the absence of national guidelines: practitioners' perspectives. Cancer Causes Control 2019; 30:989-996. [PMID: 31302838 DOI: 10.1007/s10552-019-01209-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/05/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE Immunocompromised populations including people living with HIV (PLWH) suffer disproportionate burden from anal cancer, a rare cancer caused by persistent infection of the anal canal with oncogenic strains of human papillomavirus. In the US, there are no nationally adopted screening guidelines for anal cancer. In the absence of such guidelines, this study explores healthcare practitioners' screening practices for early signs of anal cancer among PLWH. METHODS Between November 2017 and June 2018, the research team completed 25 interviews among a diverse sample of healthcare practitioners who provide care for PLWH. RESULTS Providers expressed frustration that screening and treatment guidelines for anal cancer were scant, and they varied in their screening practices. The majority of providers screened PLWH for anal dysplasia via the anal Pap smear; few providers were trained and had the medical equipment to conduct high-resolution anoscopy-guided biopsies, a more sensitive and specific screening method. Others screened through digital ano-rectal examinations (DARE) and both visually and with a DARE. Participants discussed how providers may be over-treating their patients who have high-grade anal intraepithelial neoplasia (AIN) and the role of biomarkers to determine whether the lesion is carcinogenic. CONCLUSIONS Practitioners who provide care for PLWH are proactive in screening to help prevent and control anal cancer, a rare and slow-growing disease. Continuing to regularly surveil high-risk populations, particularly PLWH previously diagnosed with high-grade lesions, is critical to prevent and control anal cancer.
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Affiliation(s)
- Alexis M Koskan
- College of Health Solutions, Arizona State University, 425 N. 5th Street, Phoenix, AZ, 85004, USA.
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International Anal Neoplasia Society Guidelines for the Practice of Digital Anal Rectal Examination. J Low Genit Tract Dis 2019; 23:138-146. [DOI: 10.1097/lgt.0000000000000458] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ong JJ, Walker S, Grulich A, Hoy J, Read TRH, Bradshaw C, Chen M, Garland SM, Hillman R, Templeton DJ, Hocking J, Eu B, Tee BK, Chow EPF, Fairley CK. Incorporating digital anorectal examinations for anal cancer screening into routine HIV care for men who have sex with men living with HIV: a prospective cohort study. J Int AIDS Soc 2018; 21:e25192. [PMID: 30516346 PMCID: PMC6280647 DOI: 10.1002/jia2.25192] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Men who have sex with men (MSM) living with HIV have a high risk of anal cancer, which is often detected at late stages, when morbidity and mortality are high. The objective of this study was to describe the feasibility and challenges to incorporating regular digital anorectal examination (DARE) into routine HIV care for MSM living with HIV, from the perspective of patients, physicians and the health service. METHODS In 2014, we recruited 327 MSM living with HIV, aged 35 and above from one major sexual health centre (n = 187), two high HIV caseload general practices (n = 118) and one tertiary hospital (n = 22) in Melbourne, Australia. Men were followed up for two years and DARE was recommended at baseline, year 1 and year 2. Data were collected regarding patient and physician experience, and health service use. An ordered logit model was used to assess the relationship between sociodemographic factors and the number of DAREs performed. RESULTS Mean age of men was 51 (SD ± 9) years, 69% were Australian born, 32% current smokers, and mean CD4 was 630 (SD ± 265) cells per mm3 , with no significant differences between clinical sites. Overall, 232 (71%) men received all three DAREs, 71 (22%) received two DAREs, and 24 (7%) had one DARE. Adverse outcomes were rarely reported: anal pain (1.2% of total DAREs), bleeding (0.8%) and not feeling in control of their body during the examination (1.6%). Of 862 DAREs performed, 33 (3.8%) examinations resulted in a referral to a colorectal surgeon. One Stage 1 anal cancer was detected. CONCLUSION Incorporation of an early anal cancer detection programme into routine HIV clinical care for MSM living with HIV showed high patient acceptability, uncommon adverse outcomes and specialist referral patterns similar to other cancer screening programmes.
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Affiliation(s)
- Jason J Ong
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- London School of Hygiene and Tropical MedicineLondonUK
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Sandra Walker
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Andrew Grulich
- Kirby InstituteUniversity of New South WalesSydneyNew South WalesAustralia
| | - Jennifer Hoy
- Department of Infectious DiseasesAlfred Hospital and Monash UniversityMelbourneVictoriaAustralia
| | - Tim RH Read
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Catriona Bradshaw
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Marcus Chen
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Suzanne M Garland
- Department of Obstetrics and GynaecologyDepartment of Microbiology in Infectious DiseasesUniversity of MelbourneRoyal Women's HospitalMurdoch Children's Research InstituteParkvilleVictoriaAustralia
| | - Richard Hillman
- HIV, Immunology and Infectious DiseaseSt Vincent's HospitalDarlinghurstNew South WalesAustralia
| | - David J Templeton
- Kirby InstituteUniversity of New South WalesSydneyNew South WalesAustralia
- RPA Sexual HealthSydney Local Health DistrictSydney Medical SchoolThe University of SydneySydneyNew South WalesAustralia
| | - Jane Hocking
- Melbourne School of Population and Global HealthUniversity of MelbourneParkvilleVictoriaAustralia
| | - Beng Eu
- Prahran Market ClinicPrahranVictoriaAustralia
| | - Bian Kiem Tee
- The Centre ClinicVictorian AIDS CouncilSt KildaVictoriaAustralia
| | - Eric P F Chow
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
| | - Christopher K Fairley
- Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Melbourne Sexual Health CentreAlfred HealthCarltonVictoriaAustralia
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Burger EA, Dyer MA, Sy S, Palefsky JM, de Pokomandy A, Coutlee F, Silverberg MJ, Kim JJ. Development and Calibration of a Mathematical Model of Anal Carcinogenesis for High-Risk HIV-Infected Men. J Acquir Immune Defic Syndr 2018; 79:10-19. [PMID: 29757775 PMCID: PMC6092220 DOI: 10.1097/qai.0000000000001727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Men who have sex with men who are living with HIV are at highest risk for anal cancer. Our objective was to use empirical data to develop a comprehensive disease simulation model that reflects the most current understanding of anal carcinogenesis, which is uniquely positioned to evaluate future anal cancer screening strategies and provide insight on the unobservable course of the disease. SETTING North America. METHODS The individual-based simulation model was calibrated leveraging primary data from empirical studies, such as a longitudinal HIV-positive men who have sex with men cohort study [Human Immunodeficiency and Papilloma Virus Research Group (HIPVIRG); n = 247] and the North American AIDS Cohort Collaboration on Research and Design [(NA-ACCORD); n = 13,146]. We used the model to infer unobservable progression probabilities from high-grade precancer to invasive anal cancer by CD4 nadir and human papillomavirus (HPV) genotype. RESULTS The calibrated model had good correspondence to data on genotype- and age-specific HPV prevalence; genotype frequency in precancer and cancer; and age- and nadir CD4-specific cancer incidence. The model-projected progression probabilities differed substantially by HPV genotype and nadir CD4 status. For example, among individuals with CD4 nadir <200, the median monthly progression probability from a high-grade lesion to invasive cancer was 0.054% (ie, 6.28% 10-year probability) and 0.004% (ie, 0.48% 10-year probability) for men with an HPV-16 infection versus without a detectable HPV infection, respectively. CONCLUSIONS We synthesized existing evidence into a state-of-the-art anal cancer disease simulation model that will be used to quantify the tradeoffs of harms and benefits of alternative strategies, understand critical uncertainties, and inform national anal cancer prevention policy.
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Affiliation(s)
- Emily A Burger
- Department of Health Policy and Management, Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
| | - Michael A Dyer
- Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA
| | - Stephen Sy
- Department of Health Policy and Management, Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Joel M Palefsky
- Department of Medicine, University of California, San Francisco, CA
| | - Alexandra de Pokomandy
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, Quebec, Canada
- Department of Family Medicine, McGill University, Montreal, Quebec, Canada
| | - François Coutlee
- Université de Montréal, Département de Microbiologie et Infectiologie, Montreal, Quebec, Canada
| | | | - Jane J Kim
- Department of Health Policy and Management, Center for Health Decision Science, Harvard T.H. Chan School of Public Health, Boston, MA
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Chen TC, Wanniarachige D, Murphy S, Lockhart K, O'Mahony J. Surveying the Cost-Effectiveness of the 20 Procedures with the Largest Public Health Services Waiting Lists in Ireland: Implications for Ireland's Cost-Effectiveness Threshold. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2018; 21:897-904. [PMID: 30098666 DOI: 10.1016/j.jval.2018.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 02/21/2018] [Accepted: 02/25/2018] [Indexed: 05/21/2023]
Abstract
OBJECTIVES To survey the cost effectiveness of procedures with the largest waiting lists in the Irish public health system to inform a reconsideration of Ireland's current cost-effectiveness threshold of €45,000/quality-adjusted life-year (QALY). METHODS Waiting list data for inpatient and day case procedures in the Irish public health system were obtained from the National Treatment Purchase Fund. The 20 interventions with the largest number of individuals waiting for inpatient and day case care were identified. The academic literature was searched to obtain cost-effectiveness estimates from Ireland and other high-income countries. Cost-effectiveness estimates from foreign studies were adjusted for differences in currency, purchasing power parity, and inflation. RESULTS Of the top 20 waiting list procedures, 17 had incremental cost-effectiveness ratios (ICERs) lower than €45,000/QALY, 14 fell below €20,000/QALY, and 10 fell below €10,000/QALY. Only one procedure had an ICER higher than the current threshold. Two procedures had ICERs reported for different patient and indication groups that lay on either side of the threshold. CONCLUSIONS Some cost-effective interventions that have large waiting lists may indicate resource misallocation and the threshold may be too high. An evidence-informed revision of the threshold may require a reduction to ensure it is consistent with its theoretical basis in the opportunity cost of other interventions foregone. A limitation of this study was the difficulty in matching specific procedures from waiting lists with ICER estimates from the literature. Nevertheless, our study represents a useful demonstration of a novel concept of using waiting list data to inform cost-effectiveness thresholds.
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Affiliation(s)
| | | | - Síofra Murphy
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Katie Lockhart
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - James O'Mahony
- Centre for Health Policy and Management, Trinity College Dublin, Dublin, Ireland.
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Clutterbuck D, Asboe D, Barber T, Emerson C, Field N, Gibson S, Hughes G, Jones R, Murchie M, Nori AV, Rayment M, Sullivan A. 2016 United Kingdom national guideline on the sexual health care of men who have sex with men. Int J STD AIDS 2018:956462417746897. [PMID: 29334885 DOI: 10.1177/0956462417746897] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
This guideline is intended for use in UK Genitourinary medicine clinics and sexual health services but is likely to be of relevance in all sexual health settings, including general practice and Contraception and Sexual Health (CASH) services, where men who have sex with men (MSM) seek sexual health care or where addressing the sexual health needs of MSM may have public health benefits. For the purposes of this document, MSM includes all gay, bisexual and all other males who have sex with other males and both cis and trans men. This document does not provide guidance on the treatment of particular conditions where this is covered in other British Association for Sexual Health and HIV (BASHH) Guidelines but outlines best practice in multiple aspects of the sexual health care of MSM. Where prevention of sexually transmitted infections including HIV can be addressed as an integral part of clinical care, this is consistent with the concept of combination prevention and is included. The document is designed primarily to provide guidance on the direct clinical care of MSM but also makes reference to the design and delivery of services with the aim of supporting clinicians and commissioners in providing effective services. Methodology This document was produced in accordance with the guidance set out in the BASHH CEG's document 'Framework for guideline development and assessment' published in 2010 at http://www.bashh.org/guidelines and with reference to the Agree II instrument. Following the production of the updated framework in April 2015, the GRADE system for assessing evidence was adopted and the draft recommendations were regraded. Search strategy (see also Appendix 1) Ovid Medline 1946 to December 2014, Medline daily update, Embase 1974 to December 2014, Pubmed NeLH Guidelines Database, Cochrane library from 2000 to December 2014. Search language English only. The search for Section 3 was conducted on PubMed to December 2014. Priority was given to peer-reviewed papers published in scientific journals, although for many issues evidence includes conference abstracts listed on the Embase database. In addition, for 'Identification of problematic recreational drug and alcohol use' section and 'Sexual problems and dysfunctions in MSM' section, searches included PsycINFO. Methods Article titles and abstracts were reviewed and if relevant the full text article was obtained. Priority was given to randomised controlled trial and systematic review evidence, and recommendations made and graded on the basis of best available evidence. Piloting and feedback The first draft of the guideline was circulated to the writing group and to a small group of relevant experts, third sector partners and patient representatives who were invited to comment on the whole document and specifically on particular sections. The revised draft was reviewed by the CEG and then reviewed by the BASHH patient/public panel and posted on the BASHH website for public consultation. The final draft was piloted before publication. Guideline update The guidelines will be reviewed and revised in five years' time, 2022.
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Affiliation(s)
| | - David Asboe
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | - Tristan Barber
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | | | - Nigel Field
- 4 Public Health England, London, UK
- 5 University College London, London, UK
| | | | | | - Rachael Jones
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | | | - Achyuta V Nori
- 8 8945 Guy's and St Thomas' NHS Foundation Trust , London, UK
| | - Michael Rayment
- 2 Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | - Ann Sullivan
- 9 BASHH CEG, BASHH 2017 Registered Office, Macclesfield, UK
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Zhang L, Regan DG, Ong JJ, Gambhir M, Chow EP, Zou H, Law M, Hocking J, Fairley CK. Targeted human papillomavirus vaccination for young men who have sex with men in Australia yields significant population benefits and is cost-effective. Vaccine 2017; 35:4923-4929. [DOI: 10.1016/j.vaccine.2017.07.078] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/22/2017] [Accepted: 07/24/2017] [Indexed: 11/27/2022]
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Nyitray AG, Hicks JT, Hwang LY, Baraniuk S, White M, Millas S, Onwuka N, Zhang X, Brown EL, Ross MW, Chiao EY. A phase II clinical study to assess the feasibility of self and partner anal examinations to detect anal canal abnormalities including anal cancer. Sex Transm Infect 2017; 94:124-130. [PMID: 28835533 DOI: 10.1136/sextrans-2017-053283] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/24/2017] [Accepted: 07/27/2017] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE Anal cancer is a common cancer among men who have sex with men (MSM); however, there is no standard screening protocol for anal cancer. We conducted a phase II clinical trial to assess the feasibility of teaching MSM to recognise palpable masses in the anal canal which is a common sign of anal cancer in men. METHODS A clinician skilled in performing digital anorectal examinations (DARE) used a pelvic manikin to train 200 MSM, aged 27-78 years, how to do a self-anal examination (SAE) for singles or a partner anal examination (PAE) for couples. The clinician then performed a DARE without immediately disclosing results, after which the man or couple performed an SAE or PAE, respectively. Percentage agreement with the clinician DARE in addition to sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were calculated for the SAE, PAE and overall. RESULTS Men had a median age of 52 years, 42.5% were African American and 60.5% were HIV positive. DARE detected abnormalities in 12 men while the men's SAE/PAEs detected 9 of these. A total of 93.0% of men classified the health of their anal canal correctly (95% CI 89.5 to 96.5). Overall percentage agreement, sensitivity and specificity were 93.0%, 75.0% and 94.2%, respectively, while PPV and NPV were 45.0% and 98.3%, respectively. The six men who detected the abnormality had nodules/masses ≥3 mm in size. More than half of men (60.5%) reported never checking their anus for an abnormality; however, after performing an SAE/PAE, 93.0% said they would repeat it in the future. CONCLUSION These results suggest that tumours of ≥3 mm may be detectable by self or partner palpation among MSM and encourage further investigation given literature suggesting a high cure rate for anal cancer tumours ≤10 mm.
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Affiliation(s)
- Alan G Nyitray
- Department of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, The University of Texas Health Science Center School of Public Health at Houston, Houston, TX, USA
| | - Joseph T Hicks
- Department of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, The University of Texas Health Science Center School of Public Health at Houston, Houston, TX, USA
| | - Lu-Yu Hwang
- Department of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, The University of Texas Health Science Center School of Public Health at Houston, Houston, TX, USA
| | - Sarah Baraniuk
- Department of Biostatistics, Coordinating Center for Clinical Trials, The University of Texas Health Science Center School of Public Health at Houston, Houston, Texas, USA
| | | | - Stefanos Millas
- Department of Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Nkechi Onwuka
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center School of Public Health at Houston, Houston, Texas, USA
| | - Xiaotao Zhang
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center School of Public Health at Houston, Houston, Texas, USA
| | - Eric L Brown
- Department of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, The University of Texas Health Science Center School of Public Health at Houston, Houston, TX, USA
| | - Michael W Ross
- University of Minnesota, Program in Human Sexuality, Minneapolis, Minnesota, USA
| | - Elizabeth Y Chiao
- Department of Internal Medicine, Baylor College of Medicine, Houston, Texas, USA
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Butame SA, Lawler S, Hicks JT, Wilkerson JM, Hwang LY, Baraniuk S, Ross MW, Chiao EY, Nyitray AG. A qualitative investigation among men who have sex with men on the acceptability of performing a self- or partner anal exam to screen for anal cancer. Cancer Causes Control 2017; 28:1157-1166. [PMID: 28779467 DOI: 10.1007/s10552-017-0935-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 07/27/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE Persistent infection with oncogenic human papillomavirus (HPV) is the primary cause of anal cancer, a disease that disproportionately affects men who have sex with men (MSM); however, there is no uniform screening protocol to detect anal cancer. This qualitative study explores whether a self-anal exam (SAE) or partner anal exam (PAE), that includes self-palpation or palpation of a partner's anal canal, is an acceptable and self-efficacious screening test, which will cue appropriate follow-up care in MSM. METHODS Twenty-four MSM living in Houston took part in four focus group sessions eliciting their responses to a study teaching them to perform an SAE or PAE (SAE/PAE). Participants were asked about the acceptability and feasibility of executing an SAE/PAE routinely. Thematic analysis of session transcripts was used to identify common patterns in participant responses. RESULTS Overall, participants expressed self-efficacy for performing an SAE/PAE and voiced a preference for being taught the procedure by a clinician. Participants agreed that they would consult with a clinician if they ever discovered an abnormality while performing an SAE/PAE. A lack of knowledge about anal cancer among MSM may present a barrier to adopting SAE/PAE. In discussing their experience of the exams, some participants suggested that it could become a routine practice for them. CONCLUSIONS Our findings suggest that SAE and PAE, as a screen for anal cancer, are acceptable and feasible to MSM. Future research should explore attitudes and beliefs of MSM, with the aim of improving anal cancer education and understanding of pathologic findings.
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Affiliation(s)
- Seyram A Butame
- Department of Management, Policy, and Community Health (MPACH), School of Public Health, The University of Texas Health Science Center at Houston, 1200 Pressler St., RAS - E903K, Houston, TX, 77030-3900, USA.
| | - Sylvia Lawler
- Department of Health Promotion and Behavioral Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Joseph T Hicks
- Division of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, School of Public Health, Houston, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - J Michael Wilkerson
- Department of Health Promotion and Behavioral Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Lu-Yu Hwang
- Division of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, School of Public Health, Houston, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Sarah Baraniuk
- Department of Biostatistics, Coordinating Center for Clinical Trials, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Michael W Ross
- Program in Human Sexuality, University of Minnesota, Minneapolis, MN, USA
| | - Elizabeth Yu Chiao
- Department of Internal Medicine, Baylor College of Medicine Houston, Houston, TX, USA
| | - Alan G Nyitray
- Division of Epidemiology, Human Genetics and Environmental Sciences, Center for Infectious Diseases, School of Public Health, Houston, The University of Texas Health Science Center at Houston, Houston, TX, USA
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Cuming T, Nathan M. Anal cancer screening: Techniques and guidelines. SEMINARS IN COLON AND RECTAL SURGERY 2017. [DOI: 10.1053/j.scrs.2017.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Human Papillomavirus Positivity in the Anal Canal in HIV-Infected and HIV-Uninfected Men Who Have Anal Sex with Men in Guangzhou, China: Implication for Anal Exams and Early Vaccination. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2641259. [PMID: 28133605 PMCID: PMC5241445 DOI: 10.1155/2017/2641259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/29/2016] [Indexed: 12/31/2022]
Abstract
Background. The epidemiology of HPV in men who have sex with men (MSM) in Guangzhou, China, had not been reported previously. Methods. HIV-infected and HIV-uninfected MSM were recruited from a Guangzhou-based MSM clinic in 2013. Sociodemographic characteristics and sexual behaviors were collected. An anal cytological sample was taken for HPV testing. Results. We recruited 79 HIV-infected and 85 HIV-uninfected MSM. The median age was 26 years in both groups. The positivities of anal HPV of any type (81.0% versus 48.2%), any high risk type (50.6% versus 27.1%), any low risk type (55.7% versus 31.8%), and any 9-valent vaccine type (74.7% versus 36.5%) were all significantly higher among HIV-infected compared to that among HIV-negative MSM (p for all < 0.05). The great majority of HPV-infected MSM were infected with 9-valent vaccine types (59 out of 64 HIV-infected and 31 out of 41 HIV-uninfected). Anal bacterial infections were associated with higher anal HPV positivity and greater number of anal HPV types. Conclusion. Sexually active MSM in Guangzhou, especially those infected with HIV, had high and multiple HPV detections. The majority of these cases were potentially preventable by HPV vaccine. Regular anal exams and early HPV vaccination are warranted in this population.
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