1
|
Yadav R, El Kossi M, Belal D, Sharma A, Halawa A. Post-transplant malignancy: Focusing on virus-associated etiologies, pathogenesis, evidence-based management algorithms, present status of adoptive immunotherapy and future directions. World J Meta-Anal 2023; 11:317-339. [DOI: 10.13105/wjma.v11.i7.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/23/2023] [Accepted: 10/08/2023] [Indexed: 12/14/2023] Open
Abstract
Modern immunosuppression has led to a decrease in rejection rates and improved survival rates after solid organ transplantation. Increasing the potency of immunosuppression promotes post-transplant viral infections and associated cancers by impairing immune response against viruses and cancer immunoediting. This review reflects the magnitude, etiology and immunological characteristics of various virus-related post-transplant malignancies, emphasizing the need for future research. A multidisciplinary and strategic approach may serve best but overall literature evidence targeting it is sparse. However, the authors attempted to provide a more detailed update of the literature consensus for the prevention, diagnosis, management and surveillance of post-transplant viral infections and associated malignancies, with a focus on the current role of adoptive immunotherapy and the way forward. In order to achieve long-term patient and graft survival as well as superior post-transplant outcomes, collaborative research on holistic care of organ recipients is imperative.
Collapse
Affiliation(s)
- Rahul Yadav
- Department of Urology, Kidney Transplant and Robotic Uro-oncology, Tender Palm Super Speciality Hospital, Lucknow 226010, Uttar Pradesh, India
- Department of Urology and Kidney Transplant, Charak Hospital and Research Centre, Lucknow 226003, Uttar Pradesh, India
| | - Mohsen El Kossi
- Department of Nephrology, Doncaster Royal Infirmary, Doncaster DN2 5LT, United Kingdom
| | - Dawlat Belal
- Department of Nephrology and Medicine, Kasr El-Ainy School of Medicine, Cairo University, Cairo 11562, Egypt
| | - Ajay Sharma
- Department of Transplant Surgery, Royal Liverpool University Hospitals, Liverpool L7 8XP, United Kingdom
| | - Ahmed Halawa
- Department of Transplantation, Sheffield Teaching Hospitals, Sheffield S57AU, United Kingdom
| |
Collapse
|
2
|
Fuertes I, Chivite I, Cranston RD, Sánchez E, Cordón E, Rodríguez-Carunchio L, Blanco JL. Short-term effectiveness and tolerability of carbon dioxide laser for anal high-grade squamous intraepithelial lesions in individuals living with HIV. Int J STD AIDS 2022; 33:709-717. [PMID: 35611790 DOI: 10.1177/09564624221100069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Ablative treatment of intra-anal high-grade squamous intraepithelial lesions (HSIL) reduces the risk of progression to anal squamous cell carcinoma. Our objective was to assess the short-term effectiveness and tolerability of the carbon dioxide laser for treating intra-anal HSIL in patients at high risk of anal cancer. METHODS This is an exploratory, pilot, single-arm, clinical trial of treatment response for anal HSIL in people living with HIV diagnosed with ≤3 not previously treated HSILs. Individuals were treated with one carbon dioxide laser treatment session. Clinical assessment by high resolution anoscopy and systematic recording of adverse events was performed. RESULTS Fifty-two patients with 72 HSILs were included. Response to treatment was assessed in 48 (92.3%) patients; in the per-protocol population analysis, complete, partial, and no response was seen in 50% (n = 24), 20.8% (n = 10) and 29.1% (n = 14), respectively. Being older than 40 years and having a CD4 T-cell count lower than 200 cells/μL at diagnosis of HSIL were significantly associated with a poor response to treatment. Data on adverse events was recorded for 49 patients and 69.4% (n=34) reported no symptoms after the procedure. CONCLUSIONS Carbon dioxide laser ablation is a promising and well tolerated treatment for intra-anal HSIL.
Collapse
Affiliation(s)
- Irene Fuertes
- Department of Dermatology, 16493Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Iván Chivite
- Department of Infectious Diseases, 16493Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Ross D Cranston
- Department of Infectious Diseases, 16493Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Emilia Sánchez
- Blanquerna School of Health Science, 82995Universitat Ramón Llull, Barcelona, Spain
| | - Encarna Cordón
- Department of Infectious Diseases, 16493Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | | | - José L Blanco
- Department of Infectious Diseases, 16493Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| |
Collapse
|
3
|
Corral J, Parés D, García-Cuyás F, Revollo B, Chamorro A, Lecumberri C, Tarrats A, Castella E, Piñol M, Clotet B, Videla S, Sirera G. Incidence of Recurrent High-Grade Anal Dysplasia in HIV-1-Infected Men and Women Following Infrared Coagulation Ablation: A Retrospective Cohort Study. Pathogens 2021; 10:pathogens10020208. [PMID: 33672969 PMCID: PMC7918241 DOI: 10.3390/pathogens10020208] [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: 12/01/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 11/18/2022] Open
Abstract
This single-center, retrospective cohort study sought to estimate the cumulative incidence in HIV-1-infected patients of biopsy-proven high-grade anal intraepithelial neoplasia (HGAIN) recurrence after infrared coagulation (IRC) treatment. The study was based on data from a prospectively compiled database of 665 HIV-1-infected outpatients who attended a hospital Clinical Proctology/HIV Unit between January 2012 and December 2015. Patient records were checked to see which ones had received IRC treatment but later experienced a recurrence of HGAIN. Cytology samples were also checked for the presence of human papilloma virus (HPV). A total of 81 of the 665 patients (12%, 95%CI: 10–15%), of whom 65 were men and 16 women, were diagnosed with HGAIN and again treated with IRC. Of these 81, 20 (25%) experienced recurrent HGAIN, this incidence being true of both men (16/65, 95%CI: 19–57%) and women (4/16, 95%CI: 10–50%). The median time to recurrence was 6 (2–19) months overall, 6 (2–19) months in men, and 4 (2–6) months in women. HPV infection was detected in all patients except two, with HPV-16 being the most common genotype. This rate of incidence of recurrent HGAIN following IRC treatment is consistent with other reports and highlights the importance of continued post-treatment surveillance, particularly in the first year.
Collapse
Affiliation(s)
- Javier Corral
- Department of General Surgery, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (D.P.); (F.G.-C.); (M.P.)
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- School of Medicine, Universitat Autónoma de Barcelona (UAB), Edifici M, Av. de Can Domènech, Bellaterra, 08193 Barcelona, Spain
- Correspondence: (J.C.); (S.V.)
| | - David Parés
- Department of General Surgery, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (D.P.); (F.G.-C.); (M.P.)
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- School of Medicine, Universitat Autónoma de Barcelona (UAB), Edifici M, Av. de Can Domènech, Bellaterra, 08193 Barcelona, Spain
| | - Francesc García-Cuyás
- Department of General Surgery, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (D.P.); (F.G.-C.); (M.P.)
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
| | - Boris Revollo
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- HIV Clinical Unit, Department of Medicine, University Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| | - Ana Chamorro
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- HIV Clinical Unit, Department of Medicine, University Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| | - Carla Lecumberri
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- Department of Obstetrics and Gynaecology, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| | - Antoni Tarrats
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- Department of Obstetrics and Gynaecology, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| | - Eva Castella
- Department of Pathology, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain;
| | - Marta Piñol
- Department of General Surgery, Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (D.P.); (F.G.-C.); (M.P.)
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
| | - Bonaventura Clotet
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- School of Medicine, Universitat Autónoma de Barcelona (UAB), Edifici M, Av. de Can Domènech, Bellaterra, 08193 Barcelona, Spain
- Retrovirology Laboratory IrsiCaixa Foundation, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| | - Sebastià Videla
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- Department of Clinical Pharmacology, Bellvitge University Hospital/IDIBELL/University of Barcelona, Hospitalet de Llobregat, Gran Via de les Corts Catalanes 199–203, 08907 Barcelona, Spain
- Correspondence: (J.C.); (S.V.)
| | - Guillem Sirera
- Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain; (B.R.); (A.C.); (C.L.); (A.T.); (B.C.); (G.S.)
- HIV Clinical Unit, Department of Medicine, University Hospital Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, 08916 Barcelona, Spain
| |
Collapse
|
4
|
Gouvas N, Gourtsoyianni S, Kalogeridi MA, Sougklakos J, Vini L, Xynos E. Hellenic society of medical oncology (HESMO) guidelines for the management of anal cancer. Updates Surg 2020; 73:7-21. [PMID: 33231836 DOI: 10.1007/s13304-020-00923-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/29/2020] [Indexed: 01/01/2023]
Abstract
Despite considerable improvement in the management of anal cancer, there is a great deal of variation in the outcomes among European countries, and in particular among different hospital centres in Greece and Cyprus. The aim was to elaborate a consensus on the multidisciplinary management of anal cancer, based on European guidelines (European Society of Medical Oncologists-ESMO), considering local special characteristics of our healthcare system. Following discussion and online communication among members of an executive team, a consensus was developed. Guidelines are proposed along with algorithms of diagnosis and treatment. The importance of centralisation, care by a multidisciplinary team (MDT) and adherence to guidelines are emphasised.
Collapse
Affiliation(s)
- Nikolaos Gouvas
- Colorectal Surgeon, Nicosia General Hospital, Medical School, Shacolas Educational Centre for Clinical Medicine, University of Cyprus, Palaios Dromos Lefkosias Lemesou No.215/6Aglantzia, 2029, Nicosia, Cyprus.
| | - Sophia Gourtsoyianni
- Abdominal Radiologist, "Aretaieion" Hospital, Faculty of Medicine, University of Athens, Athens, Greece
| | | | - John Sougklakos
- Medical Oncologist, University Hospital of Heraklion, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Louisa Vini
- Clinical Oncologist/Radiotherapist, "Iatriko" Hopsital of Athens, Athens, Greece
| | - Evangelos Xynos
- Colorectal Surgeon, Creta Inter-Clinic Hopsital, Heraklion, Greece
| | | |
Collapse
|
5
|
Goldstone SE, Lensing SY, Stier EA, Darragh T, Lee JY, van Zante A, Jay N, Berry-Lawhorn JM, Cranston RD, Mitsuyasu R, Aboulafia D, Palefsky JM, Wilkin T. A Randomized Clinical Trial of Infrared Coagulation Ablation Versus Active Monitoring of Intra-anal High-grade Dysplasia in Adults With Human Immunodeficiency Virus Infection: An AIDS Malignancy Consortium Trial. Clin Infect Dis 2020; 68:1204-1212. [PMID: 30060087 DOI: 10.1093/cid/ciy615] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 07/26/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Anal high-grade squamous intraepithelial lesions (HSILs) ablation may reduce the incidence of invasive cancer, but few data exist on treatment efficacy and natural regression without treatment. METHODS An open-label, randomized, multisite clinical trial of human immunodeficiency virus (HIV)-infected adults aged ≥27 years with 1-3 biopsy-proven anal HSILs (index HSILs) without prior history of HSIL treatment with infrared coagulation (IRC). Participants were randomized 1:1 to HSIL ablation with IRC (treatment) or no treatment (active monitoring [AM]). Participants were followed every 3 months with high-resolution anoscopy. Treatment participants underwent anal biopsies of suspected new or recurrent HSILs. The AM participants underwent biopsies only at month 12. The primary end point was complete clearance of index HSIL at month 12. RESULTS We randomized 120 participants. Complete index HSIL clearance occurred more frequently in the treatment group than in the AM (62% vs 30%; risk difference, 32%; 95% confidence interval [CI], 13%-48%; P < .001). Complete or partial clearance (clearance of ≥1 index HSIL) occurred more commonly in the treatment group (82% vs 47%; risk difference, 35%; 95% CI, 16%-50%; P < .001). Having a single index lesion, compared with having 2-3 lesions, was significantly associated with complete clearance (relative risk, 1.96; 95% CI, 1.22-3.10). The most common adverse events related to treatment were mild or moderate anal pain and bleeding. No serious adverse events were deemed related to treatment or study participation. CONCLUSION IRC ablation of anal HSILs results in more clearance of HSILs than observation alone.
Collapse
Affiliation(s)
- Stephen E Goldstone
- Department of Surgery, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Shelly Y Lensing
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Elizabeth A Stier
- Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, Massachusetts
| | - Teresa Darragh
- Department of Pathology, University of California, San Francisco
| | - Jeannette Y Lee
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | | | - Naomi Jay
- Department of Medicine, University of California, San Francisco
| | | | - Ross D Cranston
- Fundació Lluita contra la Sida, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Ronald Mitsuyasu
- David Geffen School of Medicine at University of California, Los Angeles (UCLA), UCLA Center for Clinical AIDS Research and Education
| | - David Aboulafia
- Division of Hematology and Oncology, Virginia Mason Medical Center and the University of Washington, Seattle, WA
| | - Joel M Palefsky
- Department of Pathology, University of California, San Francisco
| | - Timothy Wilkin
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York
| |
Collapse
|
6
|
Gaisa MM, Liu Y, Deshmukh AA, Stone KL, Sigel KM. Electrocautery ablation of anal high-grade squamous intraepithelial lesions: Effectiveness and key factors associated with outcomes. Cancer 2020; 126:1470-1479. [PMID: 31977082 DOI: 10.1002/cncr.32581] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/06/2019] [Accepted: 05/16/2019] [Indexed: 01/20/2023]
Abstract
BACKGROUND Electrocautery ablation (EA) is a common treatment modality for patients with anal high-grade squamous intraepithelial lesions (HSILs), but to the authors' knowledge its effectiveness has been understudied. The objective of the current study was to determine ablation outcomes and to identify clinicopathological factors associated with postablation disease recurrence. METHODS A total of 330 people living with HIV with de novo intra-anal HSIL who were treated with EA from 2009 to 2016 were studied retrospectively. Using long-term, surveillance high-resolution anoscopy biopsy data, treatment failures were classified as local recurrence (HSIL noted at the treated site at the time of surveillance) or overall recurrence (HSIL noted at treated or untreated sites). The associations between these outcomes and clinical factors were analyzed using Cox proportional hazards models. RESULTS Approximately 88% of participants were men who have sex with men. The median age of study participants was 45.5 years (range, 35-51 years) and approximately 49% had multiple index HSILs (range, 2-6 index HSILs). At a median of 12.2 months postablation (range, 6.3-20.9 months postablation), approximately 45% of participants had developed local recurrence whereas 60% had developed overall recurrence. Current cigarette smoking, HIV viremia (HIV-1 RNA ≥100 copies/mL), and multiple index HSILs were found to be predictive of local recurrence. Overall recurrence was more common in current smokers and those with multiple index lesions. In multivariable models that included human papillomavirus (HPV) genotypes, baseline and persistent infections with HPV-16 and/or HPV-18 were found to be significantly associated with both local and overall recurrence. CONCLUSIONS EA is an effective treatment modality for anal HSIL in people living with HIV, but rates of disease recurrence are substantial. Multiple index HSILs, HIV viremia, current cigarette smoking, and both baseline and persistent infection with HPV-16 and/or HPV-18 appear to negatively impact treatment success. Ongoing surveillance is imperative to capture recurrence early and improve long-term treatment outcomes.
Collapse
Affiliation(s)
- Michael M Gaisa
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Yuxin Liu
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ashish A Deshmukh
- Department of Management, Policy and Community Health, University of Texas School of Public Health, Houston, Texas
| | - Kimberly L Stone
- Division of General Internal Medicine, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Keith M Sigel
- Division of General Internal Medicine, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| |
Collapse
|
7
|
Clinical results of infrared coagulation as a treatment of high-grade anal dysplasia: a systematic review. Tech Coloproctol 2019; 23:707-712. [DOI: 10.1007/s10151-019-02041-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/16/2019] [Indexed: 10/26/2022]
|
8
|
Binda GA, Gagliardi G, Dal Conte I, Verra M, Cassoni P, Cavazzoni E, Stocco E, Delmonte S, De Nardi P, Sticchi L, Mistrangelo M. Practice parameters for the diagnosis and treatment of anal intraepithelial neoplasia (AIN) on behalf of the Italian Society of Colorectal Surgery (SICCR). Tech Coloproctol 2019; 23:513-528. [PMID: 31243606 DOI: 10.1007/s10151-019-02019-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 06/17/2019] [Indexed: 12/15/2022]
Abstract
Squamous cell carcinoma (SCC) of the anus is a human papilloma virus (HPV) related malignancy that is preceded by anal intraepithelial neoplasia (AIN) making this cancer, at least theoretically, a preventable disease. In the past 10 years the diagnosis, management and nomenclature of AIN has dramatically changed. Increased life expectancy in human immunodeficiency virus (HIV) positive patients due to highly active antiretroviral therapy (HAART) has caused an increase in the incidence of SCC of the anus. While many experts recommend screening and treatment of anal high-grade squamous intraepithelial lesion (HSIL), there is no consensus on the optimal management these lesions. Therefore, there is a need to review the current evidence on diagnosis and treatment of AIN and formulate recommendations to guide management. Surgeons who are members of the Italian Society of Colorectal Surgery (SICCR) with a recognized interest in AIN were invited to contribute on various topics after a comprehensive literature search. Levels of evidence were classified using the Oxford Centre for Evidence-based Medicine of 2009 and the strength of recommendation was graded according to the United States (US) preventive services task force. These recommendations are among the few entirely dedicated only to the precursors of SCC of the anus and provide an evidence-based summary of the current knowledge about the management of AIN that will serve as a reference for clinicians involved in the treatment of patients at risk for anal cancer.
Collapse
Affiliation(s)
- G A Binda
- Coloproctological Surgery, Biomedical Institute, Via Prà 1/b, 16157, Genoa, Italy.
| | - G Gagliardi
- Department of Surgery, University of Illinois at Chicago, Chicago, USA
| | - I Dal Conte
- Sexually Transmitted Infection Clinic, ASL Città di Torino, Turin, Italy
| | - M Verra
- Surgical Science Department, Città della Salute e della Scienza Hospital, University of Turin, Turin, Italy
| | - P Cassoni
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - E Cavazzoni
- Department of Surgery, University of Perugia School of Medicine, Perugia, Italy
| | - E Stocco
- Department of Surgery, ASS-5 Friuli Venezia Giulia, 33078, San Vito al Tagliamento, Italy
| | - S Delmonte
- Medical Science Department, Dermatologic Clinic, University of Turin, Turin, Italy
| | - P De Nardi
- Department of Gastrointestinal Surgery, San Raffaele Scientific Institute, Milan, Italy
| | - L Sticchi
- Hygiene Unit, Department of Health Sciences (DISSAL), IRCCS Policlinico San Martino Hospital, University of Genoa, Genoa, Italy
| | - M Mistrangelo
- Surgical Science Department, Città della Salute e della Scienza Hospital, University of Turin, Turin, Italy
| |
Collapse
|
9
|
Chin-Hong PV, Reid GE. Human papillomavirus infection in solid organ transplant recipients: Guidelines from the American Society of Transplantation Infectious Diseases Community of Practice. Clin Transplant 2019; 33:e13590. [PMID: 31077438 DOI: 10.1111/ctr.13590] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 02/06/2023]
Abstract
These guidelines from the American Society of Transplantation Infectious Diseases Community of Practice update the epidemiology and management of human papillomavirus (HPV) infections in organ transplant recipients. HPV is one of the most common sexually transmitted infections and is associated with cancers of the anogenital region. Increasing evidence suggests an association with head and neck cancers as well. Solid organ transplant recipients have a higher risk of HPV infection than the general population. Infection manifests as premalignant lesions, warts, or cancer of the cervix, penis, vulva, scrotum, and anal canal. Most are asymptomatic initially, so diagnosis can be difficult without screening. A vaccine is available though not effective in preventing all cancer-causing strains. Organ transplant recipients should be screened for HPV-associated cancers and appropriate therapy initiated in a timely manner. Further studies are warranted to delineate the most effective screening methods and therapeutic modalities, including whether changes in immunosuppression are effective in attenuating disease.
Collapse
Affiliation(s)
- Peter V Chin-Hong
- Division of Infectious Diseases, University of California at San Francisco, San Francisco, California
| | - Gail E Reid
- Division of Infectious Diseases, Loyola University Medical Center, Maywood, Illinois
| | | |
Collapse
|
10
|
Liu Y, Gaisa MM, Wang X, Swartz TH, Arens Y, Dresser KA, Sigel C, Sigel K. Differences in the Immune Microenvironment of Anal Cancer Precursors by HIV Status and Association With Ablation Outcomes. J Infect Dis 2019; 217:703-709. [PMID: 28968881 DOI: 10.1093/infdis/jix454] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 08/30/2017] [Indexed: 01/20/2023] Open
Abstract
Background Anal high-grade squamous intraepithelial lesions (HSILs) are the precursors to anal cancer and frequently persist or recur following electrocautery ablation (EA). Impaired mucosal immunity may facilitate anal carcinogenesis. We characterized the immune microenvironment of anal HSILs in correlation with human immunodeficiency virus (HIV) serostatus and ablation outcomes. Methods Using immunohistochemistry, mucosa-infiltrating CD4+ and CD8+ lymphocytes were quantified in HSILs and benign mucosa from 70 HIV+ and 45 HIV- patients. Clinicopathological parameters were compared. Results Anal HSILs harbored more T lymphocytes than benign mucosa regardless of HIV status (P ≤ .03). Total T lymphocyte count and CD8+ subset were significantly higher in HIV+ HSILs versus HIV- HSILs (median cell count, 71 vs 47; 47 vs 22/high power field [HPF]; P < .001), whereas the CD4+ subset was comparable between groups (median, 24 vs. 25; P = .40). Post EA, HSILs persisted in 41% of HIV+ and 19% of HIV- patients (P = .04). Unadjusted analysis showed trends toward EA failures associated with HIV seropositivity (incidence rate ratio [IRR], 2.0; 95% CI, .8-4.9) and increased CD8+ cells (IRR, 2.3; 95% CI, .9-5.3). Conclusions Human immunodeficiency virus is associated with alterations of the immune microenvironment of anal HSILs manifested by increased local lymphocytic infiltrates, predominately CD8+. Human immunodeficiency virus seropositivity and excess mucosa-infiltrating CD8+ cells may be associated with ablation resistance.
Collapse
Affiliation(s)
- Yuxin Liu
- Department of Pathology, Icahn School of Medicine at Mount Sinai
| | - Michael M Gaisa
- Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai
| | - Xiaofei Wang
- Department of Pathology, University of Massachusetts Medical School, Worcester
| | - Talia H Swartz
- Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai
| | - Yotam Arens
- Division of General Internal Medicine, Icahn School of Medicine at Mount Sinai
| | - Karen A Dresser
- Department of Pathology, University of Massachusetts Medical School, Worcester
| | - Carlie Sigel
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Keith Sigel
- Division of General Internal Medicine, Icahn School of Medicine at Mount Sinai
| |
Collapse
|
11
|
Oda R, Agsalda-Garcia M, Loi N, Kamada N, Milne C, Killeen J, Choi SY, Lim E, Acosta-Maeda T, Misra A, Shiramizu B. Raman-Enhanced Spectroscopy Distinguishes Anal Squamous Intraepithelial Lesions in Human Immunodeficiency Virus-Serodiscordant Couples. AIDS Res Hum Retroviruses 2019; 35:287-294. [PMID: 30612435 DOI: 10.1089/aid.2018.0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
HIV-positive individuals are at increased risk for precancerous anal squamous intraepithelial lesions (SILs). Anal cytology and digital rectal examination are performed as screening tools, but extensive training and appropriate instruments are required to follow up on an abnormal anal cytology. Thus, novel approaches to SIL evaluation could improve better health care follow-up by efficient and timely diagnosis to offer treatment options. Recently, Raman-enhanced spectroscopy (RESpect) has emerged as a potential new tool for early identification of SIL. RESpect is a noninvasive, label-free, laser-based technique that identifies molecular composition of tissues and cells. HIV-serodiscordant couples had anal biopsies obtained during high-resolution anoscopy. RESpect was performed on the specimens. Principal component analysis of the data identified differences between normal and abnormal tissue as well as HIV-positive and HIV-negative individuals of each couple even with similar pathologies. RESpect has the potential to change the paradigm of anal pathology diagnosis and could provide insight into different pathways leading to SIL in HIV-serodiscordant couples.
Collapse
Affiliation(s)
- Robert Oda
- 1 Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Melissa Agsalda-Garcia
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Nicholas Loi
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Natalie Kamada
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Cris Milne
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Jeffrey Killeen
- 3 Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - So Yung Choi
- 4 Biostatistics Core, Department of Complementary and Integrative Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Eunjung Lim
- 4 Biostatistics Core, Department of Complementary and Integrative Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Tayro Acosta-Maeda
- 5 Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Anupam Misra
- 5 Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Bruce Shiramizu
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| |
Collapse
|
12
|
Vassiliu P, Bartsokas C. Infrared Coagulation: A Treatment Option for Cervical Intraepithelial Neoplasia. J Glob Oncol 2018; 4:1-2. [PMID: 30241161 PMCID: PMC6180760 DOI: 10.1200/jgo.17.00038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
13
|
Abstract
BACKGROUND Both ablation and expectant management of high-grade squamous intraepithelial lesions have been proposed. Expectant management would be reasonable if 1) the rate of high-grade squamous epithelial lesion progression to anal squamous cell carcinoma were low, and 2) anal squamous cell carcinoma arising under surveillance had a better prognosis than anal squamous cell carcinoma presenting without an identified precursor. OBJECTIVE This study aims to quantify aspects of high-grade squamous epithelial lesion/anal squamous cell carcinoma clinical evolution in a surgical practice. DESIGN This is a retrospective cohort study. SETTINGS This study was performed in 1 colorectal surgeon's practice over a 20-year period. PATIENTS Consecutive patients with high-grade squamous intraepithelial lesion and anal squamous cell carcinoma were included. MAIN OUTCOME MEASURES We looked at the rate and timing of progression to anal squamous cell carcinoma, and the stage, treatment, and outcome of anal squamous cell carcinoma. We reviewed a comparison group of HIV-positive patients presenting de novo with anal squamous cell carcinoma (no prior history of high-grade squamous intraepithelial lesion). RESULTS With consideration of only HIV-positive patients, 341 patients had a mean 5.6 years follow-up from high-grade squamous intraepithelial lesion diagnosis to the most recent documented anal examination. Twenty-four of these surveillance patients developed anal squamous cell carcinoma, yielding a progression rate of 1.3% per patient-year. Mean follow-up was 7.3 years from the initial cancer diagnosis to the most recent contact. Forty-seven patients who presented de novo with anal squamous cell carcinoma developed 74 lesions, with a mean follow-up of 5.7 years after initial diagnosis. This de novo group had higher anal squamous cell carcinoma-specific mortality (3% per patient-year vs 0.05%). Our study did not show a significantly higher rate of high stage (stage III or IV) at anal squamous cell carcinoma diagnosis in the de novo group in comparison with the surveillance group (25.5% vs 8.3% (p = 0.09)). LIMITATIONS This study was retrospective in nature and had a predominately male population. CONCLUSIONS The progression of untreated high-grade squamous intraepithelial lesion to anal squamous cell carcinoma approximates 1% per patient-year. Anal squamous cell carcinoma developing under surveillance tends to be of an earlier stage and to require fewer major interventions than anal squamous cell carcinoma presenting de novo. Cancer-specific mortality was lower for malignancies that developed under surveillance. We suggest that expectant management of patients with high-grade squamous intraepithelial lesion is a rational strategy for preventing anal cancer morbidity. See Video Abstract at http://links.lww.com/DCR/A699.
Collapse
|
14
|
Abstract
Anal intraepithelial neoplasia (AIN) is the premalignant condition of the anal squamous tissue. It is associated with the human papilloma virus and is considered the transition prior to the invasive anal squamous cell carcinoma. It is typically asymptomatic and can be either an incidental finding after anorectal surgery or identified when high-risk patient populations are screened. Once AIN is diagnosed, the optimal management remains controversial, partly because the natural history of the disease is unclear. Surgical management of the disease has essentially been replaced by more conservative treatment options and can range from expectant management to topical therapy to photodynamic therapy. The aim of this article is to review the varied treatment options and to briefly review prevention strategies.
Collapse
Affiliation(s)
- Rebecca E. Hoedema
- Department of Colorectal Surgery, Michigan State University College of Human Medicine, Grand Rapids, Michigan
- Department of Colorectal Surgery, Spectrum Health Medical Group/Ferguson Clinic, Grand Rapids, Michigan
| |
Collapse
|
15
|
Brief Report: Radiofrequency Ablation Therapy for Anal Intraepithelial Neoplasia: Results From a Single-Center Prospective Pilot Study in HIV+ Participants. J Acquir Immune Defic Syndr 2018; 76:e93-e97. [PMID: 28857936 DOI: 10.1097/qai.0000000000001535] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND HIV-positive individuals have high incidence of anal high-grade squamous intraepithelial lesions (HSIL) at the squamocolumnar junction (SCJ), which can progress to cancer. Focal radiofrequency ablation (RFA) treats HSIL, but metachronous recurrence remains high and may be improved with circumferential treatment. SETTING The study was performed at a single center. METHODS This was a prospective trial of circumferential anal RFA using Barrx 60 RFA focal catheters in participants with ≥1 anal SCJ HSIL. The entire SCJ was ablated by RFA. Adverse events (AEs), symptoms, including pain, and quality of life were assessed. High-resolution anoscopy assessed recurrences at 3, 6, 9, and 12 months. Lesion site biopsies occurred at month 12. Recurrences were retreated with focal RFA. RESULTS Ten male participants (9 HIV+), with a median 2 HSILs (range 2-8) each, enrolled. Median T-cell count and viral load were 730 cells/mcL and 38 copies/mL. Median duration of RFA treatment was 6.5 (5-13) minutes. Lesion persistence occurred in 4 participants (3 at 3 months, 1 at 6 months). Recurrence at a new site occurred in 1 participant at 3 months. No lesion persisted after retreatment. All participants were HSIL free and completely healed by 12 months. Two device-related mild AEs occurred in 1 participant each (thrombosed external hemorrhoid and soft anal scar; both resolved). No serious AEs occurred. CONCLUSION Circumferential anal SCJ RFA produced total HSIL eradication with no more than 2 treatments. Circumferential RFA seems to be well tolerated with minimal pain and no serious AEs in HIV+ participants. CLINICALTRIALS.GOV:: NCT02189161.
Collapse
|
16
|
Abstract
Human papillomavirus (HPV) is a common infection in kidney transplant recipients. HPV causes cervical, anal, vulvar, vaginal, penile and head and neck cancers. Kidney transplant recipients have a disproportionate burden of disease given prolonged immunosuppression. Given the long pre-invasive state of precancer lesions such as cervical intraepithelial neoplasia (CIN) and anal intraepithelial neoplasia (AIN) most HPV-cancers are preventable with screening and targeted treatment of disease. Pre-transplant vaccination of age-eligible kidney transplant recipients is otherwise ideal.
Collapse
Affiliation(s)
- Peter V Chin-Hong
- Division of Infectious Diseases, Department of Medicine, University of California, San Francisco, San Francisco, CA.
| |
Collapse
|
17
|
de Pokomandy A, Rouleau D, Lalonde R, Beauvais C, de Castro C, Coutlée F. Argon plasma coagulation treatment of anal high-grade squamous intraepithelial lesions in men who have sex with men living with HIV: results of a 2-year prospective pilot study. HIV Med 2017; 19:81-89. [PMID: 28833949 DOI: 10.1111/hiv.12544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Men who have sex with men (MSM) living with HIV are at high risk for anal high-grade squamous intraepithelial lesions (HSILs) and cancer. The best management of anal HSIL remains unclear. Our objective was to assess whether argon plasma coagulation (APC) could be safe, well tolerated and efficient to treat anal HSILs in MSM living with HIV. METHODS A prospective phase II, open-label, pilot study was conducted to evaluate APC to treat anal HSILs in 20 HIV-positive MSM. Participants were followed for 2 years after their first treatment. RESULTS Twenty men with persistent HSILs completed the 2-year study. Their baseline median CD4 count was 490 cells/μL and 85% had undetectable HIV viral loads. Overall, 65% (13/20) of participants were clear of HSILs at their 24-month visit. The initial response rates after the first, second and third APC treatments were 45%, 44% and 67%, respectively, but recurrences were common. The main side effect was pain during and within 1 week after the treatments. There were no long-term side effects, nor serious adverse events related to the procedure. Cost is a drawback. CONCLUSIONS APC can be used to treat anal HSILs in HIV-seropositive MSM, and requires repeated treatment because of a high recurrence rate. As successful treatment of human papillomavirus (HPV) infection or eradication of the anal transitional zone remains impossible, HSIL treatment is challenging and requires long-term follow-up.
Collapse
Affiliation(s)
- A de Pokomandy
- Family Medicine Department, McGill University, Montreal, QC, Canada.,Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC, Canada.,Canadian Institutes of Health Research (CIHR) - Canadian HIV Trials Network, Vancouver, BC, Canada
| | - D Rouleau
- Canadian Institutes of Health Research (CIHR) - Canadian HIV Trials Network, Vancouver, BC, Canada.,Department of Microbiology and Infectious Diseases, Centre Hospitalier de l'Université de Montréal (University of Montreal Hospital Centre), University of Montreal, Montreal, QC, Canada.,Unité Hospitalière de Recherche et Enseignement en Soins Sida (AIDS Care Research and Teaching Hospital Unit) of Centre Hospitalier de l'Université de Montréal (University of Montreal Hospital Centre), Montreal, QC, Canada
| | - R Lalonde
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC, Canada.,Canadian Institutes of Health Research (CIHR) - Canadian HIV Trials Network, Vancouver, BC, Canada.,Department of Infectious Diseases, McGill University and McGill University Health Centre, Montreal, QC, Canada
| | - C Beauvais
- Unité Hospitalière de Recherche et Enseignement en Soins Sida (AIDS Care Research and Teaching Hospital Unit) of Centre Hospitalier de l'Université de Montréal (University of Montreal Hospital Centre), Montreal, QC, Canada
| | - C de Castro
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC, Canada
| | - F Coutlée
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC, Canada.,Department of Infectious Diseases, McGill University and McGill University Health Centre, Montreal, QC, Canada
| | | |
Collapse
|
18
|
Brady JT, Ko B, Stein SL. High-resolution anoscopy: Is it necessary in the management of anal epithelial neoplasia. SEMINARS IN COLON AND RECTAL SURGERY 2017. [DOI: 10.1053/j.scrs.2017.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
Wentzensen N, Arbyn M, Berkhof J, Bower M, Canfell K, Einstein M, Farley C, Monsonego J, Franceschi S. Eurogin 2016 Roadmap: how HPV knowledge is changing screening practice. Int J Cancer 2017; 140:2192-2200. [PMID: 28006858 DOI: 10.1002/ijc.30579] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/30/2016] [Accepted: 12/08/2016] [Indexed: 01/01/2023]
Abstract
Human papillomaviruses (HPVs) are the necessary cause of most cervical cancers, a large proportion of other anogenital cancers, and a subset of oropharyngeal cancers. The knowledge about HPV has led to development of novel HPV-based prevention strategies with important impact on clinical and public health practice. Two complementary reviews have been prepared following the 2015 Eurogin Conference to evaluate how knowledge about HPV is changing practice in HPV infection and disease control through vaccination and screening. This review focuses on screening for cervical and anal cancers in increasingly vaccinated populations. The introduction of HPV vaccines a decade ago has led to reductions in HPV infections and early cancer precursors in countries with wide vaccination coverage. Despite the high efficacy of HPV vaccines, cervical cancer screening will remain important for many decades. Many healthcare systems are considering switching to primary HPV screening, which has higher sensitivity for cervical precancers and allows extending screening intervals. We describe different approaches to implementing HPV-based screening efforts in different healthcare systems with a focus in high-income countries. While the population prevalence for other anogenital cancers is too low for population-based screening, anal cancer incidence is very high in HIV-infected men who have sex with men, warranting consideration of early detection approaches. We summarize the current evidence on HPV-based prevention of anal cancers and highlight important evidence gaps.
Collapse
Affiliation(s)
- Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
| | - Marc Arbyn
- Unit of Cancer Epidemiology & Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
| | - Johannes Berkhof
- Department of Clinical Epidemiology and Biostatistics, VU University Medical Centre, Amsterdam, The Netherlands
| | - Mark Bower
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, UK
| | - Karen Canfell
- Cancer Research Division, Cancer Council NSW, Sydney, NSW, Australia; School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Mark Einstein
- Department of OB/GYN & Women's Health, Rutgers New Jersey Medical School, Newark, USA
| | - Christopher Farley
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | | | | |
Collapse
|
20
|
Megill C, Wilkin T. Topical therapies for the treatment of anal high-grade squamous intraepithelial lesions. SEMINARS IN COLON AND RECTAL SURGERY 2017; 28:86-90. [PMID: 29910593 DOI: 10.1053/j.scrs.2017.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Anal cancer may be prevented by treating anal high-grade squamous intraepithelial lesions (HSIL). Ablative therapies are the most commonly used treatments, but they may not be appropriate for all patients including those with extensive HSIL or bleeding diastheses. Researchers have studied topical therapies for human papillomavirus related lesions including anal HSIL. These therapies include patient-applied 5-fluorouracil, imiquimod and cidofovir, and provider-applied trichloroacetic acid. This review will discuss literature supporting efficacy of these products, which is based mainly on case series with few controlled trials having been conducted. Side effects are common with patient-applied topical therapy often requiring dose reduction and medication to treat pain. However, treatment discontinuations are infrequent. This review will also discuss some approaches to the use of these products in clinical practice.
Collapse
Affiliation(s)
- Christina Megill
- Division of Infectious Diseases, Weill Cornell Medicine 53 W. 23 St. 6 Floor, New York, NY 10010, 212-746-7204 (phone), 212-746-7203 (fax)
| | - Timothy Wilkin
- Division of Infectious Diseases, Weill Cornell Medicine 53 W. 23 St. 6 Floor, New York, NY 10010, 212-746-7204 (phone), 212-746-7203 (fax)
| |
Collapse
|
21
|
Goldstone RN, Hasan SR, Drury S, Darragh TM, van Zante A, Goldstone SE. A trial of radiofrequency ablation for anal intraepithelial neoplasia. Int J Colorectal Dis 2017; 32:357-365. [PMID: 27770248 DOI: 10.1007/s00384-016-2679-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE Radiofrequency ablation (RFA) effectively treats esophageal high-grade dysplasia, but its efficacy in treating anal canal high-grade squamous intraepithelial lesions (HSILs) is unsubstantiated. This prospective study assessed the safety and efficacy of applying hemi-circumferential RFA to anal canal HSIL. METHODS Twenty-one HIV-negative participants with HSIL occupying ≤ half the anal canal circumference were treated with hemi-circumferential anal canal RFA. Participants were assessed every 3 months for 12 months with high-resolution anoscopy; recurrence in the treatment zone was re-treated with focal RFA. RESULTS Twenty-one participants with a mean of 1.7 lesions (range 1-4) enrolled and completed the trial. Six (29 %) participants had recurrent HSIL within the treated hemi-circumference within 1 year. Four participants (19 %) had persistence of an index lesion at 3 months. One (2.9 %) index HSIL persisted again at 12 months. No participants had more than two RFA treatments. KM curve-predicted HSIL-free survival within the treatment zone at 1 year was 76 % (95 % CI 52-89 %). Comparing the first 7 and last 14 participants, the predicted 1-year HSIL-free survivals are 43 % (95 % CI 10-73 %) and 93 % (95 % CI 59-99 %), respectively (p = 0.008), suggesting a learning curve with the treating physician. Multivariable analysis showed decreased recurrence in the last 14 participants (HR 0.02; 95 % CI 0.001-0.63) while increasing BMI increased recurrence (HR 1.43, 95 % CI 1.01-2.01). No participants had device or procedure-related serious adverse events, anal stricture, or heavy bleeding. CONCLUSIONS Hemi-circumferential RFA yielded a high rate of anal HSIL eradication in HIV-negative patients at 1 year with minimal adverse events. Lesion persistence was probably related to incomplete initial ablation.
Collapse
Affiliation(s)
| | | | | | - Teresa M Darragh
- Departments of Pathology and Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Annemieke van Zante
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Stephen E Goldstone
- Icahn School of Medicine, Mount Sinai, 420 West 23rd St, New York, NY, 10011, USA.
| |
Collapse
|
22
|
Benevolo M, Donà MG, Ravenda PS, Chiocca S. Anal human papillomavirus infection: prevalence, diagnosis and treatment of related lesions. Expert Rev Anti Infect Ther 2016; 14:465-77. [PMID: 27050294 DOI: 10.1586/14787210.2016.1174065] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Human papillomavirus (HPV) infection is mostly asymptomatic, but may also have many diverse clinical signs encompassing benign ano-genital lesions, and carcinomas. Recently, interest has also particularly focused on anal cancer since, over the last decades, its incidence has been greatly increasing in developed countries, both in women and men and is drastically higher in specific risk groups, such as men who have sex with men (MSM) and HIV-1 infected individuals. Approximately 88% of anal cancer cases worldwide are associated with HPV infection. This review summarizes our current understanding of anal HPV infection, discussing its epidemiology and risk factors in various populations, and the state of the art in the detection of anal HPV infection and its related lesions through both cytology and histology. Finally, we discuss the clinical management and therapy for these lesions.
Collapse
Affiliation(s)
- Maria Benevolo
- a Pathology Department , Regina Elena National Cancer Institute, IRCCS , Rome , Italy
| | - Maria Gabriella Donà
- b Sexually Transmitted Infection (STI) Unit , San Gallicano Dermatologic Institute, IRCCS , Rome , Italy
| | - Paola Simona Ravenda
- c Unit of Gastrointestinal and Neuroendocrine Tumours , European Institute of Oncology , Milan , Italy
| | - Susanna Chiocca
- d Department of Experimental Oncology , European Institute of Oncology (IEO) , Milan , Italy
| |
Collapse
|
23
|
Esser S, Kreuter A, Oette M, Gingelmaier A, Mosthaf F, Sautter-Bihl ML, Jongen J, Brockmeyer NH, Eldering G, Swoboda J, Postel N, Degen O, Schalk H, Jessen A, Knechten H, Thoden J, Stellbrink HJ, Schafberger A, Wieland U. German-Austrian guidelines on anal dysplasia and anal cancer in HIV-positive individuals: prevention, diagnosis, and treatment. J Dtsch Dermatol Ges 2016; 13:1302-19. [PMID: 26612810 DOI: 10.1111/ddg.12726] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Stefan Esser
- University Hospital Essen, HPSTD Outpatient Clinic, Department of Dermatology and Venereology, Essen, Germany
| | - Alexander Kreuter
- HELIOS St. Elisabeth Hospital Oberhausen, Department of Dermatology, Venereology, and Allergology, Oberhausen, Germany
| | - Mark Oette
- Augustinerinnen Hospital, Department of General Medicine, Gastroenterology; and Infectious Diseases, Cologne, Germany
| | - Andrea Gingelmaier
- Ludwig-Maximilians-University, University Hospital Munich, Department of Gynecology, Munich, Germany
| | - Franz Mosthaf
- Medical Specialist Practice for Hematology, Oncology, and Infectious Diseases, Karlsruhe, Germany
| | | | | | - Norbert H Brockmeyer
- Ruhr-University, St. Josef Hospital, Department of Dermatology, Venereology, and Allergology, Center for Sexual Health und Medicine, Bochum, Germany
| | | | | | | | - Olaf Degen
- University Hospital Hamburg-Eppendorf, Outpatient Clinic Center for Infectious Diseases, Hamburg, Germany
| | - Horst Schalk
- Medical Practice Center of General Medicine, Vienna, Austria
| | | | - Heribert Knechten
- Medical Practice for Internal Medicine and Infectious Diseases, Aachen, Germany
| | - Jan Thoden
- Medical Group Practice for Internal Medicine and Rheumatology, Freiburg, Germany
| | | | | | - Ulrike Wieland
- University Köln, Institute of Virology, National Reference Center for Papilloma and Polyomavirus, Cologne, Germany
| |
Collapse
|
24
|
Progression From Perianal High-Grade Anal Intraepithelial Neoplasia to Anal Cancer in HIV-Positive Men Who Have Sex With Men. Dis Colon Rectum 2016; 59:836-42. [PMID: 27505112 DOI: 10.1097/dcr.0000000000000644] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND High-grade intraepithelial neoplasia is known to progress to invasive squamous-cell carcinoma of the anus. There are limited reports on the rate of progression from high-grade intraepithelial neoplasia to anal cancer in HIV-positive men who have sex with men. OBJECTIVES The purpose of this study was to describe in HIV-positive men who have sex with men with perianal high-grade intraepithelial neoplasia the rate of progression to anal cancer and the factors associated with that progression. DESIGN This was a prospective cohort study. SETTINGS The study was conducted at an outpatient clinic at a tertiary care center in Toronto. PATIENTS Thirty-eight patients with perianal high-grade anal intraepithelial neoplasia were identified among 550 HIV-positive men who have sex with men. INTERVENTION All of the patients had high-resolution anoscopy for symptoms, screening, or surveillance with follow-up monitoring/treatment. MAIN OUTCOME MEASURES We measured the incidence of anal cancer per 100 person-years of follow-up. RESULTS Seven (of 38) patients (18.4%) with perianal high-grade intraepithelial neoplasia developed anal cancer. The rate of progression was 6.9 (95% CI, 2.8-14.2) cases of anal cancer per 100 person-years of follow-up. A diagnosis of AIDS, previously treated anal cancer, and loss of integrity of the lesion were associated with progression. Anal bleeding was more than twice as common in patients who progressed to anal cancer. LIMITATIONS There was the potential for selection bias and patients were offered treatment, which may have affected incidence estimates. CONCLUSIONS HIV-positive men who have sex with men should be monitored for perianal high-grade intraepithelial neoplasia. Those with high-risk features for the development of anal cancer may need more aggressive therapy.
Collapse
|
25
|
Park IU, Introcaso C, Dunne EF. Human Papillomavirus and Genital Warts: A Review of the Evidence for the 2015 Centers for Disease Control and Prevention Sexually Transmitted Diseases Treatment Guidelines. Clin Infect Dis 2016; 61 Suppl 8:S849-55. [PMID: 26602622 DOI: 10.1093/cid/civ813] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
To provide updates for the 2015 Centers for Disease Control and Prevention sexually transmitted diseases treatment guidelines on human papillomavirus (HPV) and anogenital warts (AGWs), a review of the literature was conducted in key topic areas: (1) epidemiology and burden of disease; (2) transmission and natural history; (3) diagnosis and management of AGWs; (4) occupational exposure of healthcare workers; (5) anal cancer screening among men who have sex with men (MSM); and (6) HPV vaccine recommendations. Most sexually active persons will have detectable HPV at least once in their lifetime; 14 million persons are infected annually, and 79 million persons have prevalent infection. HPV is transmitted frequently between partners; more frequent transmission has been reported from females to males than from males to females. A new formulation of imiquimod (3.75% cream) is recommended for AGW treatment. Appropriate infection control, including performing laser or electrocautery in ventilated rooms using standard precautions, is recommended to prevent possible transmission to healthcare workers who treat anogenital warts, oral warts, and anogenital intraepithelial neoplasias (eg, cervical intraepithelial neoplasia). Data are insufficient to recommend routine anal cancer screening with anal cytology in persons living with human immunodeficiency virus (HIV)/AIDS or HIV-negative MSM. An annual digital anorectal examination may be useful for early detection of anal cancer in these populations. HPV vaccine is recommended routinely for 11- or 12-year-olds, as well as for young men through age 21 years and young women through age 26 years who have not previously been vaccinated. HPV vaccine is also recommended for MSM, people living with HIV/AIDS, and immunocompromised persons through age 26 years.
Collapse
Affiliation(s)
- Ina U Park
- Sexually Transmitted Diseases Control Branch, Division of Communicable Disease Control, California Department of Public Health, Richmond Department of Family and Community Medicine, School of Medicine, University of California, San Francisco
| | - Camille Introcaso
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Eileen F Dunne
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
| |
Collapse
|
26
|
Alam NN, White DA, Narang SK, Daniels IR, Smart NJ. Systematic review of guidelines for the assessment and management of high-grade anal intraepithelial neoplasia (AIN II/III). Colorectal Dis 2016; 18:135-46. [PMID: 26559167 DOI: 10.1111/codi.13215] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 10/02/2015] [Indexed: 12/28/2022]
Abstract
AIM There is ambiguity with regard to the optimal management of anal intraepithelial neoplasia (AIN) III. The aim of this review was to assess and compare international/national society guidelines currently available in the literature on the management, treatment and surveillance of AIN III. We also aimed to assess the quality of the studies used to compile the guidelines and to clarify the terminology used in histological assessment. METHOD An electronic search of PubMed and Embase was performed using the search terms 'anal intraepithelial neoplasia', 'AIN', 'anal cancer', 'guidelines', 'surveillance' and 'management'. Literature reviews and guidelines or practice guidelines in peer reviewed journals from 1 January 2000 to 31 December 2014 assessing the treatment, surveillance or management of patients with AIN related to human papilloma virus were included. The guidelines identified by the search were assessed for the quality of evidence behind them using the Oxford Centre for Evidence-based Medicine 2011 Levels of Evidence. RESULTS The database search identified 5159 articles and two further guidelines were sourced from official body guidelines. After inclusion criteria were applied, 28 full-text papers were reviewed. Twenty-five of these were excluded, leaving three guidelines for inclusion in the systematic review: those published by the Association of Coloproctology of Great Britain and Ireland, the American Society of Colon and Rectal Surgeons and the Italian Society of Colorectal Surgery. No guidelines were identified on the management of AIN III from human papilloma virus associations and societies. All three guidelines agree that a high index of clinical suspicion is essential for diagnosing AIN with a disease-specific history, physical examination, digital rectal examination and anal cytology. There is interchange of terminology from high-grade AIN (HGAIN) (which incorporates AIN II/III) and AIN III in the literature leading to confusion in therapy use. Treatment varies from immunomodulation and photodynamic therapy to targeted destruction of areas of HGAIN/AIN II/III using infrared coagulation, electrocautery, cryotherapy or surgical excision but with little consensus between the guidelines. Recommendations on surveillance strategies are similarly discordant, ranging from 6-monthly physical examination to annual anoscopy ± biopsy. Over 50% of the recommendations are based on Level 3 or Level 4 evidence and many were compiled using studies that were more than 10 years old. CONCLUSION Despite concordance regarding diagnosis, there is significant variation in the guidelines over recommendations on the treatment and surveillance of patients with HGAIN/AIN II/III. All three sets of guidelines are based on low level, outdated evidence originating from the 1980s and 1990s.
Collapse
Affiliation(s)
- N N Alam
- Exeter Surgical Health Services Research Unit (HeSRU), Royal Devon and Exeter Hospital, Barrack Road, Exeter, Devon, UK
| | - D A White
- Warwick Medical School, University of Warwick, Coventry, UK
| | - S K Narang
- Exeter Surgical Health Services Research Unit (HeSRU), Royal Devon and Exeter Hospital, Barrack Road, Exeter, Devon, UK
| | - I R Daniels
- Exeter Surgical Health Services Research Unit (HeSRU), Royal Devon and Exeter Hospital, Barrack Road, Exeter, Devon, UK
| | - N J Smart
- Exeter Surgical Health Services Research Unit (HeSRU), Royal Devon and Exeter Hospital, Barrack Road, Exeter, Devon, UK
| |
Collapse
|
27
|
Burgos J, Curran A, Landolfi S, Navarro J, Tallada N, Guelar A, Crespo M, Ocaña I, Ribera E, Falcó V. The effectiveness of electrocautery ablation for the treatment of high-grade anal intraepithelial neoplasia in HIV-infected men who have sex with men. HIV Med 2015; 17:524-31. [PMID: 26688291 DOI: 10.1111/hiv.12352] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2015] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Electrocautery is one of the main treatment options for high-grade anal intraepithelial neoplasia (HGAIN). However, data regarding its efficacy are scarce. The aim of the study was to evaluate the effectiveness of electrocautery for the treatment of HGAIN. METHODS An observational study of HIV-infected men who have sex with men (MSM) who underwent screening for anal dysplasia was carried out. The on-treatment effectiveness of electrocautery was evaluated (according to biopsy findings measured 6-8 weeks after treatment) in patients with HGAIN. A complete response was defined as resolution of anal intraepithelial neoplasia (AIN), a partial response as regression to low-grade AIN and recurrence as biopsy-proven HGAIN during follow-up. RESULTS From May 2009 to November 2014, 21.9% (126 of 576) of patients screened were found to have HGAIN. Electrocautery effectiveness was evaluated in 83 patients. A complete response was observed in 27 patients [32.5%; 95% confidence interval (CI) 23.4-53.2%], a partial response in 28 patients (33.7%; 95% CI 24.5-44.4%) and persistence in 28 patients (33.7%; 95% CI 24.5-44.4%). The patients with the most successful results (81.8%) required two to four sessions of electrocautery. After a mean follow-up of 12.1 months, 14 of 55 patients with a response (25.4%; 95% CI 15.8-38.3%) developed recurrent HGAIN within a mean time of 29.9 months (95% CI 22-37.7 months). No patient progressed to invasive cancer during the study or developed serious adverse events after treatment. No factors associated with poor response or recurrences were observed. CONCLUSIONS Although electrocautery is the standard treatment for anal dysplasia, almost 50% of patients with HGAIN in our study did not respond or relapsed. New treatment strategies are necessary to optimize the management of anal dysplasia.
Collapse
Affiliation(s)
- J Burgos
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - A Curran
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - S Landolfi
- Anatomical Pathology Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
| | - J Navarro
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - N Tallada
- Anatomical Pathology Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
| | - A Guelar
- Internal Medicine Department, Mar University Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - M Crespo
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - I Ocaña
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - E Ribera
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| | - V Falcó
- Infectious Diseases Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Autonomous University of Barcelona, Barcelona, Spain
| |
Collapse
|
28
|
Esser S, Kreuter A, Oette M, Gingelmaier A, Mosthaf F, Sautter-Bihl ML, Jongen J, Brockmeyer NH, Eldering G, Swoboda J, Postel N, Degen O, Schalk H, Jessen A, Knechten H, Thoden J, Stellbrink HJ, Schafberger A, Wieland U. Deutsch-Österreichische S2k-Leitlinie: anale Dysplasien und Analkarzinome bei HIV-Infizierten: Prävention, Diagnostik und Therapie. J Dtsch Dermatol Ges 2015. [DOI: 10.1111/ddg.60_12726] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Stefan Esser
- Universitätsklinikum Essen, HPSTD-Ambulanz; Klinik für Dermatologie und Venerologie; Essen Deutschland
| | - Alexander Kreuter
- HELIOS St. Elisabeth Klinik Oberhausen; Klinik für Dermatologie, Venerologie und Allergologie; Oberhausen Deutschland
| | - Mark Oette
- Augustinerinnen Hospital, Klinik für Allgemeinmedizin; Gastroenterologie und Infektiologie; Köln Deutschland
| | - Andrea Gingelmaier
- Ludwig-Maximilians-Universität, Universitätsklinikum München; Klinik für Gynäkologie; München Deutschland
| | - Franz Mosthaf
- Facharztpraxis für Hämatologie; Onkologie und Infektiologie; Karlsruhe Deutschland
| | - Marie-Luise Sautter-Bihl
- Städtische Klinikum Karlsruhe; Klinik für Radioonkologie und Strahlentherapie; Karlsruhe Deutschland
| | | | - Norbert H. Brockmeyer
- Ruhr-Universität, St. Josef Krankenhaus, Klinik für Dermatologie; Venerologie und Allergologie, Zentrum für sexuelle Gesundheit und Medizin; Bochum Deutschland
| | | | | | | | - Olaf Degen
- Universitätsklinikum Hamburg-Eppendorf; Ambulanzzentrum Bereich Infektiologie; Hamburg Deutschland
| | - Horst Schalk
- Gruppenpraxis für Allgemeinmedizin; Wien Österreich
| | | | | | - Jan Thoden
- Gemeinschaftspraxis für Innere Medizin und Rheumatologie; Freiburg Deutschland
| | | | | | - Ulrike Wieland
- Universität Köln, Institut für Virologie; Nationales Referenzzentrum für Papillom- und Polyomaviren; Köln Deutschland
| |
Collapse
|
29
|
Abstract
People living with human immunodeficiency virus (HIV) are living longer since the advent of effective combined antiretroviral therapy (cART). While cART substantially decreases the risk of developing some cancers, HIV-infected individuals remain at high risk for Kaposi sarcoma, lymphoma, and several solid tumors. Currently HIV-infected patients represent an aging group, and malignancies have become a leading cause of morbidity and mortality. Tailored cancer-prevention strategies are needed for this population. In this review we describe the etiologic agents and pathogenesis of common malignancies in the setting of HIV, as well as current evidence for cancer prevention strategies and screening programs.
Collapse
Affiliation(s)
- Priscila H Goncalves
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jairo M Montezuma-Rusca
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Robert Yarchoan
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas S Uldrick
- HIV & AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
30
|
Schim van der Loeff MF, Mooij SH, Richel O, de Vries HJC, Prins JM. HPV and anal cancer in HIV-infected individuals: a review. Curr HIV/AIDS Rep 2015; 11:250-62. [PMID: 24990810 DOI: 10.1007/s11904-014-0224-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
HIV infection is one of the strongest risk factors for anal squamous cell cancer (ASCC). Most ASCC are caused by HPV, and most HPV-associated ASCC are caused by HPV-16. Anal HPV infections are very common in men who have sex with men (MSM), and nearly universal among HIV-infected MSM. High-grade anal intraepithelial neoplasia (HGAIN), the precursor for ASCC, is present in about 30 % of HIV+ MSM, but neither the progression rate to ASCC nor the regression rate are known. The incidence rate of ASCC among HIV-infected people has risen in the first decade after cART became available, but appears to be plateauing recently. Anal cytology has poor sensitivity and specificity. High resolution anoscopy (HRA) is advocated by some as a screening tool in high-risk groups, but is cumbersome and time-consuming and it is unknown whether HRA followed by treatment of HGAIN prevents ASCC. More research is needed on progression and regression rates of HGAIN, on effective therapy of HGAIN, and on biomarkers that predict HGAIN or anal cancer. HPV vaccination and earlier start of cART may prevent most anal cancers in the long run.
Collapse
Affiliation(s)
- Maarten F Schim van der Loeff
- Cluster of Infectious Diseases, Public Health Service Amsterdam, P.O. Box 2200, 1000 CE, Amsterdam, The Netherlands,
| | | | | | | | | |
Collapse
|
31
|
High-resolution anoscopy or expectant management for anal intraepithelial neoplasia for the prevention of anal cancer: is there really a difference? Dis Colon Rectum 2015; 58:53-9. [PMID: 25489694 DOI: 10.1097/dcr.0000000000000267] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND High-resolution anoscopy has been shown to improve identification of anal intraepithelial neoplasia but a reduction in progression to anal squamous-cell cancer has not been substantiated when serial high-resolution anoscopy is compared with traditional expectant management. OBJECTIVE The aim of this study was to compare high-resolution anoscopy versus expectant management for the surveillance of anal intraepithelial neoplasia and the prevention of anal cancer. DESIGN This is a retrospective review of all patients who presented with anal squamous dysplasia, positive anal Pap smears, or anal squamous-cell cancer from 2007 to 2013. SETTING This study was performed in the colorectal department of a university-affiliated, tertiary care hospital. PATIENTS Included patients had biopsy-proven anal intraepithelial neoplasia from 2007 to 2013. INTERVENTIONS Patients were treated with high-resolution anoscopy with ablation or standard anoscopy with ablation. Both groups were treated with imiquimod and followed every 6 months indefinitely. MAIN OUTCOME MEASURES The incidence of anal squamous-cell cancer in each group was the primary end point. RESULTS From 2007 to 2013, 424 patients with anal squamous dysplasia were seen in the clinic (high-resolution anoscopy, 220; expectant management, 204). Three patients (high-resolution anoscopy, 1; expectant management, 2) progressed to anal squamous-cell cancer; 2 were noncompliant with follow-up and with HIV treatment, and the third was allergic to imiquimod and refused to take topical 5-fluorouracil. The 5-year progression rate was 6.0% (95% CI, 1.5-24.6) for expectant management and 4.5% (95% CI, 0.7-30.8) for high-resolution anoscopy (p = 0.37). LIMITATIONS This was a retrospective review. There is potential for selection and referral bias. Because of the rarity of the outcome, the study may be underpowered. CONCLUSIONS Patients with squamous-cell dysplasia followed with expectant management or high-resolution anoscopy rarely develop squamous-cell cancer if they are compliant with the protocol. The cost, morbidity, and value of high-resolution anoscopy should be further evaluated in lieu of these findings.
Collapse
|
32
|
Mathews WC, Agmas W, Cachay ER, Cosman BC, Jackson C. Natural history of anal dysplasia in an HIV-infected clinical care cohort: estimates using multi-state Markov modeling. PLoS One 2014; 9:e104116. [PMID: 25101757 PMCID: PMC4125167 DOI: 10.1371/journal.pone.0104116] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/07/2014] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES (1) To model the natural history of anal neoplasia in HIV-infected patients using a 3-state Markov model of anal cancer pathogenesis, adjusting for cytology misclassification; and (2) to estimate the effects of selected time-varying covariates on transition probabilities. DESIGN A retrospective cytology-based inception screening cohort of HIV-infected adults was analyzed using a 3-state Markov model of clinical pathogenesis of anal neoplasia. METHODS Longitudinally ascertained cytology categories were adjusted for misclassification using estimates of cytology accuracy derived from the study cohort. Time-varying covariate effects were estimated as hazard ratios. RESULTS (1) There was a moderate to high probability of regression of the high grade squamous intraepithelial lesion (HSIL) state (27-62%) at 2 years after initial cytology screening; (2) the probability of developing invasive anal cancer (IAC) during the first 2 years after a baseline HSIL cytology is low (1.9-2.8%); (3) infrared coagulation (IRC) ablation of HSIL lesions is associated with a 2.2-4.2 fold increased probability of regression to <HSIL; and (4) antiretroviral therapy, suppressed HIV plasma viral load, and CD4 ≥350/mm3 are each associated with reduced probability of progression from <HSIL to HSIL. CONCLUSIONS The finding of moderate to high rates of regression of the HSIL state accompanied by low rates of progression to IAC should inform both screening and precursor treatment guideline development. There appears to be a consistent and robust beneficial effect of antiretroviral therapy, suppressed viral load, and higher CD4 on the transition from the <HSIL state to the HSIL state.
Collapse
Affiliation(s)
- William C. Mathews
- Department of Medicine, University of California San Diego, San Diego, California, United States of America
- * E-mail:
| | - Wollelaw Agmas
- Department of Medicine, University of California San Diego, San Diego, California, United States of America
| | - Edward R. Cachay
- Department of Medicine, University of California San Diego, San Diego, California, United States of America
| | - Bard C. Cosman
- Department of Surgery, University of California San Diego, San Diego, California, United States of America
| | - Christopher Jackson
- Medical Research Council Biostatistics Unit, Cambridge Institute of Public Health, Cambridge, United Kingdom
| |
Collapse
|
33
|
Smulian AG, Moore DM, Robertson JC, Kralovic SM. Phase I study demonstrates safety and tolerability of radiofrequency ablation (RFA) of the anal mucosa. HIV CLINICAL TRIALS 2014; 15:36-44. [PMID: 24525427 DOI: 10.1310/hct1501-36] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Anal carcinoma is increasing in high-risk populations. Dysplasia is often distributed throughout the anal mucosa, and focal ablative techniques have high rates of recurrence. METHODS With the goal of eradicating dysplasia from the entire anal mucosa, we conducted a phase I dose-ranging study to determine the safety and tolerability of radiofrequency ablation (RFA). HIV-infected individuals with high-grade anal intraepithelial neoplasia underwent RFA of the anal mucosa. Patient-reported procedural and postprocedural symptoms were recorded, and mucosal healing was visually assessed. RESULTS Four groups of 3 subjects each were treated with incrementally increasing numbers of RF pulses (1-3) applied to a single area of anal mucosa. Two or three doses of 12 J/cm2 were found to have acceptable patient tolerance and healing of the mucosa within 4 weeks of ablation. Using these doses, 2 groups underwent ablation of 180° of contiguous mucosa. Subjects experienced a loss of 1 to 3 days of daily activities of living, 7 to 14 days of postprocedure symptoms, and mucosal healing within 4 weeks. One subject in the first treatment group had the procedure aborted due to severe procedural pain. CONCLUSIONS The study provides evidence of the safety and tolerability of anal RFA of 180° of contiguous mucosa in a single procedure and will allow future RFA efficacy studies in the treatment of anal dysplasia.
Collapse
Affiliation(s)
- A George Smulian
- Cincinnati VA Medical Center, Cincinnati, Ohio Infectious Diseases, University of Cincinnati, Cincinnati, Ohio
| | | | - Jaime C Robertson
- Cincinnati VA Medical Center, Cincinnati, Ohio Infectious Diseases, University of Cincinnati, Cincinnati, Ohio
| | - Stephen M Kralovic
- Cincinnati VA Medical Center, Cincinnati, Ohio Infectious Diseases, University of Cincinnati, Cincinnati, Ohio
| |
Collapse
|
34
|
Barroso LF. The role of Human Papilloma Virus (HPV) vaccination in the prevention of anal cancer in individuals with Human Immunodeficiency Virus-1 (HIV-1) infection. THERAPEUTIC ADVANCES IN VACCINES 2014; 1:81-92. [PMID: 24757517 DOI: 10.1177/2051013613496946] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The incidence of anal cancer is increasing in the general population and especially in high-risk groups. A total of 90% of anal cancers are caused by human papilloma virus (HPV) infection of the anal canal. Similar to cervical cancer, anal cancer progresses through a predictable series of premalignant stages before resulting in invasive cancer; this process begins with persistent HPV infection. The HPV vaccine represents a promising strategy to combat the increasing incidence of anal cancer. Human Immunodeficiency Virus (HIV) predisposes people to persistent HPV infection, dysplasia, and subsequent anal cancer. Patients infected with HIV should be targeted for vaccination against HPV. There are difficulties in targeting this population, the most notable being that the optimal age for vaccination is prior to identification with any high-risk groups. Universal vaccination against HPV represents the best strategy to achieve maximum protection against anal cancer in high-risk groups.
Collapse
Affiliation(s)
- Luis F Barroso
- Wake Forest Baptist Health, Internal Medicine/Infectious Diseases, 1 Medical Center Blvd, Winston-Salem, NC 27157, USA
| |
Collapse
|
35
|
Patel J, Salit IE, Berry MJ, de Pokomandy A, Nathan M, Fishman F, Palefsky J, Tinmouth J. Environmental scan of anal cancer screening practices: worldwide survey results. Cancer Med 2014; 3:1052-61. [PMID: 24740973 PMCID: PMC4303174 DOI: 10.1002/cam4.250] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 03/05/2014] [Accepted: 03/16/2014] [Indexed: 12/15/2022] Open
Abstract
Anal squamous cell carcinoma is rare in the general population but certain populations, such as persons with HIV, are at increased risk. High-risk populations can be screened for anal cancer using strategies similar to those used for cervical cancer. However, little is known about the use of such screening practices across jurisdictions. Data were collected using an online survey. Health care professionals currently providing anal cancer screening services were invited to complete the survey via email and/or fax. Information was collected on populations screened, services and treatments offered, and personnel. Over 300 invitations were sent; 82 providers from 80 clinics around the world completed the survey. Fourteen clinics have each examined more than 1000 patients. Over a third of clinics do not restrict access to screening; in the rest, eligibility is most commonly based on HIV status and abnormal anal cytology results. Fifty-three percent of clinics require abnormal anal cytology prior to performing high-resolution anoscopy (HRA) in asymptomatic patients. Almost all clinics offer both anal cytology and HRA. Internal high-grade anal intraepithelial neoplasia (AIN) is most often treated with infrared coagulation (61%), whereas external high-grade AIN is most commonly treated with imiquimod (49%). Most procedures are performed by physicians, followed by nurse practitioners. Our study is the first description of global anal cancer screening practices. Our findings may be used to inform practice and health policy in jurisdictions considering anal cancer screening.
Collapse
|
36
|
Abstract
BACKGROUND The ability to detect and treat pre-malignant anal lesions suggests screening may prevent anal cancer. The incidence of anal cancer in men who have sex with men (MSM) living with HIV exceeds that of cervical cancer before screening was introduced. METHODS High-resolution anoscopy (HRA) with intervention for high-grade squamous intraepithelial lesions (HSILs) was offered to asymptomatic HIV-positive MSM. Patients with HSILs were treated and follow-up HRA performed after 6 months, whilst patients with low-grade squamous intraepithelial lesions had a repeat HRA after 12 months. RESULTS Three hundred and sixty-eight asymptomatic MSM had a total of 1497 HRAs during a median follow-up of 4.2 years (maximum 13 years). At first HRA, 36% had normal appearances, 16% had no dysplasia, 15% anal intraepithelial neoplasia (AIN)-1, 19% AIN-2 and 13% AIN-3. During follow-up, five patients (1.4%) developed invasive anal cancer (incidence 2.7 per 1000 person-years). The 5-year cancer rate for the 368 patients was 0.3% [95% confidence interval (CI) 0-0.6%]. Progression to cancer was associated with higher age (P=0.049) and AIN-3 (P=0.024). Ninety patients had AIN-3 present at least at one HRA. The cumulative risk of cancer from first AIN-3 diagnosis was 3.2% (95% CI 0-7.8%) at 5 years. One hundred and seventy-one patients had HSILs (AIN-2 or 3) present at least once. The cumulative risk of cancer from first HSIL diagnosis was 0.6% (95% CI 0-1.8%) at 5 years. CONCLUSION AIN-3 is a significant risk factor for subsequent anal cancer, although the tumours detected in screened patients were small localized, and generally the outcomes were favourable.
Collapse
|
37
|
Long-term outcome of ablation of anal high-grade squamous intraepithelial lesions: recurrence and incidence of cancer. Dis Colon Rectum 2014; 57:316-23. [PMID: 24509453 DOI: 10.1097/dcr.0000000000000058] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND High-grade dysplasia is the anal carcinoma precursor. Clinicians ablate high-grade dysplasia with laser, electrocautery, and infrared coagulation to prevent cancer. OBJECTIVE The aim of this study was to determine the long-term effectiveness of high-grade dysplasia ablation and the incidence of cancer. DESIGN This study is a retrospective chart review of patients who were treated for high-grade dysplasia from February 1998 until May 2012. SETTING This study was conducted in a surgical practice screening patients for anal cancer and high-grade dysplasia. PATIENTS The patients identified were HIV-positive and -negative men who have sex with men. INTERVENTION The ablation of high-grade dysplasia was performed. MAIN OUTCOME MEASURES The primary outcomes measured were the probability of high-grade dysplasia recurrence postablation and the incidence of cancer. RESULTS Four hundred fifty-six HIV-positive men who have sex with men (mean age, 45 ± 9 years) and 271 HIV-negative men who have sex with men (mean age, 41 ± 11 years) followed for a median of 2.2 (range, 0.2-13) years underwent high-grade dysplasia ablation by laser, infrared coagulation, and/or electrocautery. Median time to recurrence was 6.8 and 6.9 months for HIV-positive and -negative patients. Kaplan-Meier curves predict a rate of recurrence 1 year after the first ablation for HIV-positive and -negative patients of 53% (95% CI, 49%-58%) and 49% (95% CI, 43%-55%). At 2 and 3 years, the rate of recurrence was 68% (95% CI, 63%-73%) and 77% (95% CI, 7%2-82%) for HIV-positive patients and 57% (95% CI, 51%-64%) and 66% (95% CI, 59%-73%) for HIV-negative patients. The median number of recurrent lesions was ≤2 for HIV-positive patients and ≤1 for HIV-negative patients. Recurrence increased with HIV infection (HR, 1.3; 95% CI, 1.1-1.6) and each additional lesion treated (HR 1.6, 95% CI, 1.1-1.2). Five HIV-positive men who have sex with men developed cancer. The Kaplan-Meier probability of cancer 3 years postablation was 1.97% (95% CI, 0.73%-5.2%). LIMITATIONS This is a retrospective study by 1 surgeon who has extensive experience treating anal dysplasia. There was no pathology review, and the type of recurrence cannot be definitively determined because the location could be inaccurate. CONCLUSIONS Patients undergoing ablation of intra-anal high-grade dysplasia have high recurrence, but the probability of developing anal cancer is low. HIV infection and increased number of high-grade dysplasias increases the risk of recurrence.
Collapse
|
38
|
Goon P, Morrison V, Fearnhead N, Davies J, Wilson C, Jephcott C, Sterling J, Crawford R. High resolution anoscopy may be useful in achieving reductions in anal cancer local disease failure rates. Eur J Cancer Care (Engl) 2013; 24:411-6. [PMID: 24373061 DOI: 10.1111/ecc.12168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2013] [Indexed: 11/29/2022]
Abstract
Anal cancer is uncommon, with an incidence rate of 0.5-1.0 per 100,000 of the population but incidence rates have been steadily increasing over the last 3 decades. Biological and epidemiological evidence have been mounting and demonstrate that anal cancer has many similarities to cervical cancer, especially in regard to its aetiology. High-resolution anoscopy (HRA) of the anal region – analogous to colposcopy of the cervix, is a technique that is not well-known in the medical and surgical fraternity. Evidence to support the use of HRA for detection and treatment in the surveillance of AIN exists and strongly suggests that it is beneficial, resulting in reduced rates of cancer progression. Pilot data from our study showed a local disease failure rate of 1.73 per 1000 patient-months compared with a published rate of 9.89 per 1000 patient-months. This demonstrates a 5.72-fold reduction in local disease failure rates of patients with T1-T3 tumours; the data therefore suggests that use of HRA for detection and treatment in surveillance of anal cancer patients will help prevent local regional relapse at the anal site. There is an urgent need for a large, randomised controlled clinical trial to definitively test this hypothesis.
Collapse
Affiliation(s)
- P Goon
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge, UK; Department of GU and HIV Medicine, Addenbrooke's Hospital, Cambridge, UK
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Abstract
Anal squamous cell cancer is an uncommon malignancy caused by infection with oncogenic strains of Human papilloma virus. Anal cancer is much more common in immunocompromised persons, including those infected with Human immunodeficiency virus. High-grade anal intraepithelial neoplasia (HGAIN), the precursor of anal cancer, is identified by clinicians providing care for patients with anorectal disease, and is increasingly being identified during screening of immunosuppressed patients for anal dysplasia. The traditional treatment for HGAIN has been excision of macroscopic disease with margins. This approach is effective for patients with small unifocal HGAIN lesions. Patients with extensive multifocal HGAIN frequently have recurrence of HGAIN after excision, and may have postoperative complications of anal stenosis or fecal incontinence. This led to the suggestion by some that treatment for HGAIN should be delayed until patients developed anal cancer. Alternative approaches in identification and treatment have been developed to treat patients with multifocal or extensive HGAIN lesions. High-resolution anoscopy combines magnification with anoscopy and is being used to identify HGAIN and determine treatment margins. HGAIN can then be ablated with a number of modalities, including infrared coagulation, CO2 laser, and electrocautery. These methods for HGAIN ablation can be performed with local anesthesia on outpatients and are relatively well tolerated. High-resolution anoscopy-directed HGAIN ablation is evolving into a standard approach for initial treatment and then subsequent monitoring of a disease which should be expected to be recurrent. Another treatment approach for HGAIN is topical treatment, principally with 5-fluorouracil or imiquimod. Topical therapies have the advantage of being nonsurgical and are well suited for treating widespread multifocal disease. Topical treatments have the disadvantage of requiring extended treatment courses and causing a symptomatic inflammatory response. Successful treatment requires adherence to a regime that is uncomfortable at best and at worst painful. Topical treatments can be successful in motivated adherent patients willing to accept these side effects.
Collapse
Affiliation(s)
- Stephen E Weis
- Division of Dermatology, Department of Internal Medicine, University of North Texas Health Science Center at Fort Worth
- Preventive Medicine Clinic, Tarrant County Public Health, Fort Worth, TX, USA
| |
Collapse
|
40
|
|
41
|
Effectiveness of infrared coagulation ablation of high-grade anal dysplasia: are the results too good to be true? AIDS 2013; 27:1194-5. [PMID: 23902925 DOI: 10.1097/qad.0b013e32835f1fec] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
42
|
Dalla Pria A, Bower M. Will local ablation of high grade anal intraepithelial neoplasia prevent invasive anal cancer? AIDS 2013; 27:1185-6. [PMID: 23902922 DOI: 10.1097/qad.0b013e32835c122e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
43
|
Long-term effectiveness of infrared coagulation for the treatment of anal intraepithelial neoplasia grades 2 and 3 in HIV-infected men and women. AIDS 2013; 27:951-959. [PMID: 23276804 DOI: 10.1097/qad.0b013e32835e06c1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS To assess the effectiveness and safety of infrared coagulation (IRC) for the ablation of anal intraepithelial neoplasia (AIN) and to provide data on the prevalence of AIN in HIV-infected patients. PATIENTS AND METHODS We performed a single-center, retrospective cohort study based on data collected from a prospectively compiled database of outpatients attended in the Clinical-Proctology-HIV-Unit (first visit). The effectiveness (normal anal cytology after 12 months of IRC) and safety of IRC were estimated. RESULTS Between January 2005 and December 2011, a total of 69 (5%) patients with biopsy-proven AIN-2 or AIN-3 from among 1518 patients (1310 men; 208 women) were treated with IRC. The prevalence of cytological abnormalities was 49.5% [751/1518; (atypical squamous cells of unknown significance, 14%; low-grade squamous intraepithelial lesions, 27.5%; high-grade squamous intraepithelial lesions, 8%)]. High-resolution anoscopy revealed intra-anal condylomata in 31% of patients (236/751), nonvisualized lesions in 30% (227/751), and visualized lesions (from which biopsy specimens were taken) in 38% (288/751). The histological diagnosis was: AIN-1, 52% (151/288); AIN-2, 15% (44/288); AIN-3, 9% (25/288); normal, 19% (56/288); and nonevaluable, 4% (12/288). IRC was applied in-office in 66 patients (three refused to undergo treatment). At 12 months, all patients (n = 56) had a normal anal cytology result. Seven (13%) patients had biopsy-proven recurrence [mean (range) time-to-recurrence, 30 (18-43) months]. High-risk-human papilloma virus (HPV) infection was detected in all anal lesions (HPV-16 was the most common genotype). Agreement between cytological and histological results was poor. CONCLUSION A high prevalence of AIN was found in both HIV-infected men and HIV-infected women. Although randomized clinical trials are lacking, IRC ablation of AIN-2 and AIN-3 lesions without concomitant condylomata could help prevent anal squamous cell carcinoma.
Collapse
|
44
|
Chin-Hong PV, Kwak EJ. Human papillomavirus in solid organ transplantation. Am J Transplant 2013; 13 Suppl 4:189-200. [PMID: 23465011 DOI: 10.1111/ajt.12142] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- P V Chin-Hong
- Division of Infectious Diseases, University of California at San Francisco, San Francisco, CA, USA.
| | | | | |
Collapse
|
45
|
Abstract
BACKGROUND Anal canal intraepithelial neoplasia (AIN) is a pre-malignant condition of the anal canal transitional epithelium that is associated with human papillomavirus (HPV) infection. The incidence and prevalence of AIN and anal cancer are increasing rapidly in HIV-positive men who have sex with men (MSM). Other groups like HIV-negative MSM, immunosuppressed patients and people affected by other HPV diseases like genital warts and cervical intraepithelial neoplasia (CIN) may also develop AIN. The condition is complicated by its multicentric and multifocal nature and high rates of relapse and morbidity. Targeted excisions using ablative treatments such as cautery, infrared coagulation (IRC) and cryotherapy have been used as first-line therapeutic strategies, and there are many other options. There is no consensus about the optimal management of AIN. OBJECTIVES To evaluate the effects of therapeutic interventions for anal canal intraepithelial neoplasia (AIN). SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (2011, Issue 4), MEDLINE and EMBASE (to October 2011). We also searched registers of clinical trials, abstracts of scientific meetings and reference lists of included studies, and contacted experts in the field and manufacturers of any AIN and HPV-specific treatments. SELECTION CRITERIA Randomized controlled trials (RCTs) that assessed any type of intervention for AIN. DATA COLLECTION AND ANALYSIS Two review authors independently abstracted data and assessed risk of bias. If it was possible, the data were synthesised in a meta-analysis. MAIN RESULTS We found only one RCT, which included 53 patients, that met our inclusion criteria. This trial reported data on imiquimod versus placebo. There was no statistically significant difference in the risk of disease cure but there was a trend for imiquimod to downgrade the AIN to a low-risk stage. The lack of statistical power of the trial may be due to the small number of patients in each group. The risk of bias was estimated as moderate. AUTHORS' CONCLUSIONS The included trial failed to demonstrate any statistically significant efficacy of imiquimod in the management of anal intraepithelial neoplasia (AIN). The absence of reliable evidence for any of the interventions used in AIN precludes any definitive guidance or recommendations for clinical practice. Prospective cohort studies and retrospective studies have not been included in this review as they are considered to provide lower quality evidence. Well designed RCTs are needed.
Collapse
Affiliation(s)
- Antonio Macaya
- Department of Dermatology, Hospital Bellvitge, Barcelona, Spain.
| | | | | | | |
Collapse
|
46
|
Treatment of high-grade anal intraepithelial neoplasia with infrared coagulation in a primary care population of HIV-infected men and women. Dis Colon Rectum 2012; 55:1236-43. [PMID: 23135581 DOI: 10.1097/dcr.0b013e31826d5cb5] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND High-grade anal intraepithelial neoplasia, the putative anal carcinoma precursor, is more common in HIV-infected persons. The ideal treatment for these lesions has not been established. OBJECTIVE The aim of this study was to evaluate the effectiveness of infrared coagulation treatment for high-grade anal intraepithelial neoplasia. DESIGN This is a prospective cohort study. Patients with high-grade anal intraepithelial neoplasia either received infrared coagulation treatment or voluntarily did not receive treatment and were reevaluated at a subsequent time point. SETTING This investigation was performed at a Ryan White-funded clinic located in the United States. PATIENTS HIV-infected men and women with biopsy-confirmed high-grade anal intraepithelial neoplasia were included. MAIN OUTCOME MEASURES The primary outcome measured was the histology collected by high-resolution anoscopy-directed biopsy. RESULTS The study included 124 patients. Of 42 patients who either delayed treatment or were not treated, 37 (88%; 95% CI = 74%-96%) still had high-grade anal intraepithelial neoplasia on reevaluation and 2 (5%; 95%CI = 1%-16%) had squamous-cell carcinoma. Of 98 patients who received infrared coagulation treatment, 73 (74%; 95% CI = 65%-83%) patients had no evidence of high-grade anal intraepithelial neoplasia on their first posttreatment evaluation, and none had progressed to squamous-cell carcinoma (p < 0.0001 in comparison with untreated). Upon completing all initial and, if necessary, follow-up treatment, 85 (87%; 95% CI = 78%-93%) patients treated by infrared coagulation had no evidence of high-grade anal intraepithelial neoplasia and none had progressed to squamous-cell carcinoma. LIMITATIONS The study population may not be representative of the general population, the study environment was uncontrolled, and patients were not randomly assigned to treatment. CONCLUSIONS Infrared coagulation is an effective treatment for high-grade anal intraepithelial neoplasia.
Collapse
|
47
|
|
48
|
Poggio JL. Premalignant lesions of the anal canal and squamous cell carcinoma of the anal canal. Clin Colon Rectal Surg 2012; 24:177-92. [PMID: 22942800 DOI: 10.1055/s-0031-1286002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Squamous cell carcinoma of the anus (SCCA) is a rare tumor. However, its incidence has been increasing in men and women over the past 25 years worldwide. Risk factors associated with this cancer are those behaviors that predispose individuals to human papillomavirus (HPV) infection and immunosuppression. Anal cancer is generally preceded by high-grade anal intraepithelial neoplasia (HGAIN), which is most prevalent in human immunodeficiency virus-positive men who have sex with men. High-risk patients may benefit from screening. The most common presentation is rectal bleeding, which is present in nearly 50% of patients. Twenty percent of patients have no symptoms at the time of presentation. Clinical staging of anal cancer requires a digital rectal exam and a positron emission tomography/computed tomography scan of the chest, abdomen, and pelvis. Endorectal/endoanal ultrasound appears to add more-specific staging information when compared with digital rectal examination alone. Treatment of anal cancer prior to the 1970s involved an abdominoperineal resection. However, the current standard of care for localized anal cancer is concurrent chemoradiation therapy, primarily because of its sphincter-saving and colostomy-sparing potential. Studies have addressed alternative chemoradiation regimens to improve the standard protocol of fluorouracil, misogynic, and radiation, but no alternative regimen has proven superior. Surgery is reserved for those patients with residual disease or recurrence.
Collapse
|
49
|
van der Snoek EM, den Hollander JC, Aans JB, Sterenborg HJCM, van der Ende ME, Robinson DJ. Photodynamic therapy with systemic meta-tetrahydroxyphenylchlorin in the treatment of anal intraepithelial neoplasia, grade 3. Lasers Surg Med 2012; 44:637-44. [PMID: 22899359 DOI: 10.1002/lsm.22062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Anal cancer and preneoplastic anal lesions (anal intraepithelial neoplasia, AIN) rising especially in men having sex with men (MSM). There are no widely accepted treatment standards for AIN. Photodynamic therapy (PDT) using the systemic sensitizer meta-tetrahydroxyphenylchlorin (mTHPC) has the potential to treat the anal area even when the exact borders of the preneoplastic anal lesion cannot easily be visualized. STUDY DESIGN/MATERIALS AND METHODS In this prospective intervention study, 15 HIV-positive MSM with AIN 3 were treated in 25 PDT-sessions using mTHPC intravenously administered at drug doses of 0.075-0.15 mg ml(-1) and illumination at 48 hours. The illumination was performed using a custom made applicator using either red light (652 nm) to a measured intended fluence of 10 and 20 J cm(-2) and green light (532 nm) to a measured intended fluence of 105, 210, and 340 J cm(-2) . Red and green illuminations were performed at a (green) equivalent fluence rate of 105 mW cm(-2) . RESULTS Initial complete response was seen in 7/25 (28%) of treatments and another 4/25 (16%) initial partial responses. After an average 8 months, recurrences were detected in 7/11 (64%) of sessions that initially showed response. A total 4/25 (16%) showed persistent complete response 6-15 months after green light illumination. Red light illuminations caused more significant side effects combined with no persistent complete response. Reported side effects were intense pain, bloody and purulent rectal discharge, and anal stricture formation, in one patient. CONCLUSION The results show that the use of systemic mTHPC is partially effective for the treatment of AIN 3.
Collapse
|
50
|
|