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Sukhina OM, Nemaltsova KV, Panov OV. LATE RADIATION TOXICITY AFTER RADICAL RADIOTHERAPY FOR GENITAL CANCER. PROBLEMY RADIATSIINOI MEDYTSYNY TA RADIOBIOLOHII 2020; 25:130-147. [PMID: 33361832 DOI: 10.33145/2304-8336-2020-25-130-147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Indexed: 06/12/2023]
Abstract
Radiation therapy for malignant tumors of the female genital area, even with the use of modern radiotherapy equipment and dosimetric planning, causes the development of local radiation changes. An approach involving methodsof general and local exposure is used in their treatment. One of the most promising directions is the creation of optimal combinations of medicines (in the form of ointments, gels, aerosols, suppositories, etc.), which have a therapeutic effect on the inflammatory process. The article reflects the clinical course and stage of occurrence of late radiation reactions of the skin, vaginal/cervix mucosa, bladder, and intestines, as well as the features of their treatment.Literary data and own practical experience in the treatment of radiation complications are presented. Whenreviewing the topic under study, it could be concluded that the leading cause of the development of local radiationdamage is the errors in the planning and implementation of radiation therapy, when high absorbed doses thatexceed the tolerance of healthy tissues are used. Another reason for this is the poor accounting for dose distribution of ionizing radiation in tissues, the presence of concomitant diseases in patients, and the underestimation ofthe long-term effects of radiation.
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Affiliation(s)
- O M Sukhina
- State Institution «Grigoriev Institute for Medical Radiology and Oncology NAMS of Ukraine», 82 Pushkinska St., Kharkiv, 61024, Ukraine
| | - K V Nemaltsova
- State Institution «Grigoriev Institute for Medical Radiology and Oncology NAMS of Ukraine», 82 Pushkinska St., Kharkiv, 61024, Ukraine
| | - O V Panov
- State Institution «Grigoriev Institute for Medical Radiology and Oncology NAMS of Ukraine», 82 Pushkinska St., Kharkiv, 61024, Ukraine
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Gao J, Li Y, Yang X, Hu M, Xu J, Cheng L, Cao K, Liu L, Wang X. Changrui enema inhibits inflammation-induced angiogenesis in acute radiation proctitis by regulating NF-κB and VEGF. Acta Cir Bras 2020; 35:e202000502. [PMID: 32638843 PMCID: PMC7341993 DOI: 10.1590/s0102-865020200050000002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/22/2020] [Indexed: 02/25/2023] Open
Abstract
Purpose Changrui enema, a traditional Chinese medicine prescription, is used as a supplementary treatment for acute radiation proctitis (ARP). Herein we explored the inhibition effects of Changrui enema on NF-κB and VEGF in ARP mice. Methods A total of 120 C57BL/6 mice were divided randomly into normal mice group, ARP mice group, western medicine enema group (dexamethasone combined with gentamicin), and Changrui enema group. ARP mice were established by pelvic local irradiation. The expression of IL-1β, NF-κB, VEGF, AQP1, AQP3, p-ERK1/2 and p-JNK was determined by immunohistochemistry or western blot. Results The study firstly found that Changrui enema alleviated ARP mice. The expression of IL-1β, NF-κB, VEGF, AQP1 and p-ERK1/2 was increased in ARP mice, and was reserved by Changrui enema. However, the expression of AQP3 and p-JNK was decreased in ARP mice, and was up-regulated by Changrui enema. Conclusions Changrui enema is an effective treatment with fewer side effects for ARP. The mechanism of Changrui enema may be related to the inhibition of inflammation-induced angiogenesis. Changrui enema inhibits IL-1β and NF-κB expression as well as VEGF expression. Interestingly, AQP1 promotes angiogenesis, while AQP3 inhibits inflammation. Changrui enema probably inhibits AQP1 expression by down-regulating p-ERK1/2, and improves AQP3 expression by up-regulating p-JNK.
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Affiliation(s)
- Jinsheng Gao
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | | | - Xi Yang
- Shanghai University of Traditional Chinese Medicine, China
| | - Min Hu
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | - Jie Xu
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | - Lin Cheng
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | - Kaiqi Cao
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | - Likun Liu
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
| | - Xixing Wang
- Shanxi Province Research Institute of Traditional Chinese Medicine, China
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Castela J, Mão de Ferro S, Ferreira S, Dias Pereira A. Management of Severe Radiation Proctitis with Radiofrequency Ablation. GE PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2019; 26:128-130. [PMID: 30976619 PMCID: PMC6454389 DOI: 10.1159/000487447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 02/01/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Joana Castela
- *Dr. Joana Raquel Oliveira Castela, Department of Gastroenterology, Instituto Português de Oncologia de Lisboa Francisco Gentil, Rua Prof. Lima Basto, PT–1099-023 Lisbon (Portugal), E-Mail
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Chou CK, Hsieh PH, Chen CY, Chen SH. Using radiofrequency ablation for conventional endoscopic treatment refractory bleeding from radiation proctitis: A single center cohort. ADVANCES IN DIGESTIVE MEDICINE 2018. [DOI: 10.1002/aid2.13074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chu-Kuang Chou
- Division of Gastroenterology and Hepatology; Chia-Yi Christian Hospital; Chia-Yi Taiwan
- Department of Integrated Diagnostics and Therapeutics; National Taiwan University Hospital; Taipei Taiwan
| | - Ping-Hsin Hsieh
- Division of Gastroenterology and Hepatology; Chia-Yi Christian Hospital; Chia-Yi Taiwan
- Department of Integrated Diagnostics and Therapeutics; National Taiwan University Hospital; Taipei Taiwan
- Department of Gastroenterology; Chimei Medical Center; Tainan Taiwan
| | - Chi-Yi Chen
- Division of Gastroenterology and Hepatology; Chia-Yi Christian Hospital; Chia-Yi Taiwan
| | - Sheng-Hsuan Chen
- Division of Gastroenterology and Hepatology; Chia-Yi Christian Hospital; Chia-Yi Taiwan
- Department of Internal Medicine; Taipei Medical University; Taipei Taiwan
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Navaneethan U, Thosani N, Goodman A, Manfredi M, Pannala R, Parsi MA, Smith ZL, Sullivan SA, Banerjee S, Maple JT. Radiofrequency ablation devices. VIDEOGIE : AN OFFICIAL VIDEO JOURNAL OF THE AMERICAN SOCIETY FOR GASTROINTESTINAL ENDOSCOPY 2017; 2:252-259. [PMID: 29905337 PMCID: PMC5992954 DOI: 10.1016/j.vgie.2017.06.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Key Words
- APC, argon plasma coagulation
- ASGE, American Society for Gastrointestinal Endoscopy
- BE, Barrett's esophagus
- CCA, cholangiocarcinoma
- CE-D, complete eradication of dysplasia
- CE-IM, complete eradication of intestinal metaplasia
- CI, confidence interval
- CPT, current procedural technology
- ESD, endoscopic submucosal dissection
- GAVE, gastric antral vascular ectasia
- HGD, high-grade dyplasia
- IMC, intramucosal carcinoma
- LGD, low-grade dysplasia
- NET, neuroendocrine tumors
- PDT, photodynamic therapy
- RF, radiofrequency
- RFA, radiofrequency ablation
- RP, radiation proctopathy
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Nelamangala Ramakrishnaiah VP, Krishnamachari S. Chronic haemorrhagic radiation proctitis: A review. World J Gastrointest Surg 2016; 8:483-491. [PMID: 27462390 PMCID: PMC4942748 DOI: 10.4240/wjgs.v8.i7.483] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 01/06/2016] [Accepted: 05/11/2016] [Indexed: 02/07/2023] Open
Abstract
Chronic haemorrhagic radiation proctitis (CHRP) is a difficult problem faced by the patients following radiation for pelvic malignancy. There is no standard treatment for this condition, but many methods of treatment are available. The aim of this study was to review the literature to see whether there is an improvement in the available evidence in comparison with previously published systematic reviews in treating patients with CHRP. The PubMed/Medline database and Google Scholar search was selectively searched. Studies, which treated patients with rectal bleeding due to chronic radiation proctitis or CHRP, were included. Seventy studies were finally selected out of which 14 were randomized controlled clinical trials. Though these studies could not be compared, it could be seen that there was an improvement in the methodology of the studies. There was an objective assessment of symptoms, signs and an objective assessment of outcomes. But, still, there were only a few studies that looked into the quality of life following treatment of CHRP. To increase recruitment to trials, a national registry of cases with established late radiation toxicity would facilitate the further improvement of such studies. Some of the conclusions that could be reached based on the available evidence are 4% formalin should be the first line treatment for patients with CHRP. Formalin and argon plasma coagulation (APC) are equally effective, but formalin is better for severe disease. Refractory patients, not responding to formalin or APC, need to be referred for hyperbaric oxygen therapy or surgery. Radio-frequency ablation is a promising modality that needs to be studied further in randomized trials.
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Lenz L, Rohr R, Nakao F, Libera E, Ferrari A. Chronic radiation proctopathy: A practical review of endoscopic treatment. World J Gastrointest Surg 2016; 8:151-60. [PMID: 26981189 PMCID: PMC4770169 DOI: 10.4240/wjgs.v8.i2.151] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 11/20/2015] [Accepted: 12/13/2015] [Indexed: 02/06/2023] Open
Abstract
Chronic radiation proctopathy (CRP) is a troublesome complication of pelvic radiotherapy. The most common presentation is rectal bleeding. CRP symptoms interfere with daily activities and decrease quality of life. Rectal bleeding management in patients with CRP represents a conundrum for practitioners. Medical therapy is ineffective in general and surgical approach has a high morbid-mortality. Endoscopy has a role in the diagnosis, staging and treatment of this disease. Currently available endoscopic modalities are formalin, potassium titanyl phosphate laser, neodymium:yttrium-aluminum-garnet laser, argon laser, bipolar electrocoagulation (BiCAP), heater probe, band ligation, cryotherapy, radiofrequency ablation and argon plasma coagulation (APC). Among these options, APC is the most promising.
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Ghassemi KA, Jensen DM. Evolving techniques for gastrointestinal endoscopic hemostasis treatment. Expert Rev Gastroenterol Hepatol 2016; 10:615-23. [PMID: 26651414 PMCID: PMC6063521 DOI: 10.1586/17474124.2016.1130623] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
With mortality due to gastrointestinal (GI) bleeding remaining stable, the focus on endoscopic hemostasis has been on improving other outcomes such as rebleeding rate, need for transfusions, and need for angiographic embolization or surgery. Over the past few years, a number of devices have emerged to help endoscopically assess and treat bleeding GI lesions. These include the Doppler endoscopic probe, hemostatic powder, and over-the-scope clip. Also, new applications have been described for radiofrequency ablation. In this article, we will discuss these evolving tools and techniques that have been developed, including an analysis of their efficacy and limitations.
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Affiliation(s)
- Kevin A. Ghassemi
- Division of Digestive Diseases, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA,CURE Hemostasis Research Group
| | - Dennis M. Jensen
- Division of Digestive Diseases, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA,CURE Hemostasis Research Group,Division of Gastroenterology, VA Greater Los Angeles Healthcare Center, Los Angeles, CA, USA
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Becq A, Camus M, Rahmi G, de Parades V, Marteau P, Dray X. Emerging indications of endoscopic radiofrequency ablation. United European Gastroenterol J 2015; 3:313-24. [PMID: 26279839 DOI: 10.1177/2050640615571159] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 01/12/2015] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Radiofrequency ablation (RFA) is a well-validated treatment of dysplastic Barrett's esophagus. Other indications of endoscopic RFA are under evaluation. RESULTS Four prospective studies (total 69 patients) have shown that RFA achieved complete remission of early esophageal squamous intra-epithelial neoplasia at a rate of 80%, but with a substantial risk of stricture. In the setting of gastric antral vascular ectasia, two prospective monocenter studies, and a retrospective multicenter study, (total 51 patients), suggest that RFA is efficacious in terms of reducing transfusion dependency. In the setting of chronic hemorrhagic radiation proctopathy, a prospective monocenter study and a retrospective multicenter study (total 56 patients) suggest that RFA is an efficient treatment. A retrospective comparative study (64 patients) suggests that RFA improves stents patency in malignant biliary strictures. CONCLUSIONS Endoscopic RFA is an upcoming treatment modality in early esophageal squamous intra-epithelial neoplasia, as well as in gastric, rectal, and biliary diseases.
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Affiliation(s)
- Aymeric Becq
- Department of Gastroenterology and Hepatology, Sorbonne Paris Cité Paris 7 University & APHP Lariboisière Hospital, Paris, France
| | - Marine Camus
- Department of Gastroenterology and Hepatology, Sorbonne Paris Cité Paris 7 University & APHP Lariboisière Hospital, Paris, France
| | - Gabriel Rahmi
- Department of Gastroenterology and Hepatology, Sorbonne Paris Cité Paris 5 University & APHP, European Georges Pompidou Hospital, Paris, France
| | - Vincent de Parades
- Department of Medicosurgical Proctology, Léopold Bellan Institute, Saint Joseph Hospital, Paris, France
| | - Philippe Marteau
- Department of Gastroenterology and Hepatology, Sorbonne Paris Cité Paris 7 University & APHP Lariboisière Hospital, Paris, France
| | - Xavier Dray
- Department of Gastroenterology and Hepatology, Sorbonne Paris Cité Paris 7 University & APHP Lariboisière Hospital, Paris, France
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Rustagi T, Corbett FS, Mashimo H. Treatment of chronic radiation proctopathy with radiofrequency ablation (with video). Gastrointest Endosc 2015; 81:428-36. [PMID: 24973172 DOI: 10.1016/j.gie.2014.04.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 04/21/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Chronic radiation proctopathy (CRP) is a common sequela occurring even many years after pelvic radiation. Current ablative therapies for bleeding ectatic vessels have the potential for deep tissue injury leading to ulcerations, perforation, and fistulas. Radiofrequency ablation (RFA) therapy avoids deep tissue injury and is a promising treatment for CRP. OBJECTIVE To assess the long-term safety and efficacy of RFA for the treatment of CRP. DESIGN Multicenter, retrospective analysis of a prospectively collected database. SETTING Veterans Affairs Boston Healthcare System, Massachusetts; Sarasota Memorial Hospital and Suncoast Endoscopy of Sarasota, Florida. PATIENTS A total of 39 consecutive patients with CRP. INTERVENTIONS Endoscopic RFA of CRP. MAIN OUTCOME MEASUREMENTS The primary endpoint of the study was complete resolution of rectal bleeding. Secondary endpoints included visually scored improvement of CRP on endoscopic follow-up by using a rectal telangiectasia density (RTD) grading score, improvement in hemoglobin level, and adverse events related to the procedure. RESULTS A total of 39 male patients (mean [± standard deviation {SD}] age 72.9 ± 6.6 years) were included in the study. The mean number of RFA sessions was 1.49 (median 1, interquartile range [IQR] 1-2, range 1-4), with a mean interval of 18 weeks between sessions. Rectal bleeding stopped completely in all patients during the mean follow-up of 28 months (range 7-53 months). A significant improvement occurred in the mean (± SD) hemoglobin level from 11.8 ± 2 to 13.5 ± 1.6 g % (P < .0001). Endoscopic severity also improved significantly with an improvement in the median RTD score from 3 (IQR 2-3) to 0 (IQR 0-1) (P < .0001). Treatment with RFA led to discontinuation of blood transfusion and iron therapy in 92% and 82% patients, respectively. LIMITATIONS Retrospective analysis, lack of control group. CONCLUSION RFA therapy led to complete resolution of rectal bleeding in all treated CRP patients, with improvement in clinical and endoscopic indices without any major adverse events. Further controlled studies are needed to establish RFA as the endoscopic therapy of choice for treatment of CRP.
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Affiliation(s)
- Tarun Rustagi
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - F Scott Corbett
- Florida Digestive Health Specialists, Sarasota Memorial Hospital, Sarasota, Florida, USA
| | - Hiroshi Mashimo
- Veterans Affairs Boston Healthcare System, Harvard Medical School, Boston, Massachusetts, USA
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Late rectal toxicity after low-dose-rate brachytherapy: incidence, predictors, and management of side effects. Brachytherapy 2014; 14:148-59. [PMID: 25516492 DOI: 10.1016/j.brachy.2014.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 11/05/2014] [Accepted: 11/06/2014] [Indexed: 12/20/2022]
Abstract
As clinical outcomes for patients with clinically localized prostate cancer continue to improve, patients and physicians are increasing making treatment decisions based on concerns regarding long-term morbidity. A primary concern is late radiation proctitis, a clinical entity embodied by various signs and symptoms, ranging from diarrhea to rectal fistulas. Here, we present a comprehensive literature review examining the clinical manifestations and pathophysiology of late radiation proctitis after low-dose-rate brachytherapy (BT), as well as its incidence and predictors. The long-term risks of rectal bleeding after BT are on the order of 5-7%, whereas the risks of severe ulceration or fistula are on the order of 0.6%. The most robust predictor appears to be the volume of rectum receiving the prescription dose. In certain situations (e.g., salvage setting, for patients with increased radiosensitivity, and following aggressive biopsy after BT), the risk of these severe toxicities may be increased by up to 10-fold. A variety of excellent management options exist for rectal bleeding, with endoscopic methods being the most commonly used.
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Patel A, Pathak R, Deshpande V, Patel SH, Wickremesinghe PC, Vadada D. Radiofrequency ablation using BarRx for the endoscopic treatment of radiation proctopathy: a series of three cases. Clin Exp Gastroenterol 2014; 7:453-60. [PMID: 25525377 PMCID: PMC4266256 DOI: 10.2147/ceg.s66534] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Radiation proctopathy is a complication of pelvic radiotherapy, which occurs in patients treated for carcinoma of the prostate, rectum, urinary bladder, cervix, uterus, and testes. If it presents within 6 weeks to 9 months after therapy, it is called acute radiation proctitis/proctopathy (ARP), and if it occurs 9 months to a year after treatment, it is classified as chronic radiation proctitis/proctopathy (CRP). CRP occurs in 5%–20% of patients receiving pelvic radiation, depending on the radiation dose and the presence or absence of chemotherapy. In many cases, CRP resolves spontaneously, but in some, it can lead to persistent rectal bleeding. Other symptoms of CRP include diarrhea, mucoid discharge, urgency, tenesmus, rectal pain, and fecal incontinence. Despite the availability of several therapies, many patients fail to respond, and continue to suffer in their quality of life. Radiofrequency ablation (RFA) is a newer endoscopic technique that uses radiofrequency energy to ablate tissue. This is an emerging way to treat radiation proctopathy and other mucosal telangiectasia. We present three cases of radiation proctopathy treated with RFA at our institute and review the literature on treatment modalities for CRP. We were also able to find 16 other cases of CRP that used RFA, and review their literature as well as literature on other treatment modalities.
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Affiliation(s)
- Anish Patel
- Department of Gastrointestinal Medicine, Richmond University Medical Center, Staten Island, NY, USA
| | - Rahul Pathak
- Department of Gastrointestinal Medicine, Richmond University Medical Center, Staten Island, NY, USA
| | - Vrushak Deshpande
- Department of Gastrointestinal Medicine, Richmond University Medical Center, Staten Island, NY, USA
| | - Sunil H Patel
- Department of Gastrointestinal Medicine, Richmond University Medical Center, Staten Island, NY, USA
| | | | - Deepak Vadada
- Department of Gastrointestinal Medicine, Richmond University Medical Center, Staten Island, NY, USA
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Rustagi T, Jamidar PA. Intraductal radiofrequency ablation for management of malignant biliary obstruction. Dig Dis Sci 2014; 59:2635-41. [PMID: 24906696 DOI: 10.1007/s10620-014-3237-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 05/29/2014] [Indexed: 12/12/2022]
Abstract
Self-expandable metal stents (SEMS) are the current standard of care for the palliative management of malignant biliary strictures. Recently, endoscopic ablative techniques with direct affect to local tumor have been developed to improve SEMS patency. Several reports have demonstrated the technical feasibility and safety of intraductal radiofrequency ablation (RFA), by both endoscopic and percutaneous approaches, in palliation of malignant strictures of the bile duct. Intraductal RFA has also been used in the treatment of occlusion of both covered and uncovered SEMS occlusion from tumor ingrowth or overgrowth. This article provides a comprehensive review of intraductal RFA in the management of malignant biliary obstruction.
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Affiliation(s)
- Tarun Rustagi
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, 333 Cedar Street, 1080 LMP, New Haven, CT, 06520-8019, USA,
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Karamanolis G, Psatha P, Triantafyllou K. Endoscopic treatments for chronic radiation proctitis. World J Gastrointest Endosc 2013; 5:308-12. [PMID: 23858374 PMCID: PMC3711061 DOI: 10.4253/wjge.v5.i7.308] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 05/29/2013] [Accepted: 06/18/2013] [Indexed: 02/05/2023] Open
Abstract
Chronic radiation proctitis is a complication that occurs in patients who receive radiation therapy for pelvic malignancies. The common presentation is with rectal bleeding, but also rectal pain, diarrhea, tenesmus and even passage of mucus can occur. The optimal treatment of bleeding due to radiation proctitis remains unclear. Among various therapeutic options, medical management is generally ineffective and surgical intervention has a high incidence of morbidity. Promising advances have been made in endoscopic therapy, including argon plasma coagulation (APC), formalin application as well as new techniques such as radiofrequency ablation and cryoablation. APC is a safe, highly effective and long-lasting therapy in patients with rectal bleeding associated with radiation proctitis. It has been shown that several sessions of APC reduce the rate of bleeding and therefore the blood transfusion requirements. Moreover, the effect of treatment is long lasting. However, best results are achieved in patients with mild to moderate radiation proctitis, leaving space for alternative treatments for patients with more severe disease. In patients with severe or refractory radiation proctitis intra rectal formalin application is an appropriate treatment option. Radiofrequency ablation and cryoablation have shown efficacy as alternative methods in a limited number of patients with refractory chronic radiation proctitis.
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