Asian Journal of Oncology最新文献

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Breast Cancer and Pregnancy: A Review 乳腺癌症与妊娠:综述
Asian Journal of Oncology Pub Date : 2021-04-29 DOI: 10.1055/s-0041-1729348
F. Ting, N. Cabaya, B. D. Guzman
{"title":"Breast Cancer and Pregnancy: A Review","authors":"F. Ting, N. Cabaya, B. D. Guzman","doi":"10.1055/s-0041-1729348","DOIUrl":"https://doi.org/10.1055/s-0041-1729348","url":null,"abstract":"Abstract Breast cancer is one of the most commonly encountered types of malignancy during pregnancy. Here, we review the most recent data with regards to this special patient population. Current evidence shows that it is appropriate for oncologists to treat these patients carefully with a coordinated multidisciplinary approach.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"060 - 063"},"PeriodicalIF":0.0,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0041-1729348","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49573146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primary Systemic Therapy for HER2/Neu-Positive Operable Breast Cancer Increases the Number of Breast-Conserving Surgery and Disease-Free Survival: Retrospective Cohort Analysis at Single Institution HER2/ new阳性可手术乳腺癌的主要全身治疗增加了保乳手术的数量和无病生存率:单一机构的回顾性队列分析
Asian Journal of Oncology Pub Date : 2021-04-29 DOI: 10.1055/s-0041-1729481
Y. Azhar, H. Agustina, B. Hernowo
{"title":"Primary Systemic Therapy for HER2/Neu-Positive Operable Breast Cancer Increases the Number of Breast-Conserving Surgery and Disease-Free Survival: Retrospective Cohort Analysis at Single Institution","authors":"Y. Azhar, H. Agustina, B. Hernowo","doi":"10.1055/s-0041-1729481","DOIUrl":"https://doi.org/10.1055/s-0041-1729481","url":null,"abstract":"Abstract Objective The aim of this study was to evaluate the efficacy and cardiotoxicity profile, and to reduce the extend of breast cancer surgery in primary systemic therapy (PST) HER2/neu–positive operable breast cancer patients. Materials and Methods A total of 152 patients diagnosed from 2010 to 2015 were included in the study. The PST consisted of a sequential regimen of taxanes and anthracyclines plus trastuzumab. The clinical and pathological responses and the type of breast cancer surgery were evaluated and correlated with clinical and biological factors. The cardiotoxicity profile and long-term benefits were analyzed. Results The median patient age was 47 (37–67) years, with T2 and T3 67 (44.1%) and 85 (55.9%), respectively. Axillary lymph node breast cancer at diagnosis N0 was 104 (68.4%) and N1 and N2 were 28.9% and 2.6%, respectively. A total of 95.7% of patients had nonspecific type of breast cancer, 67% of tumors were hormonal receptor–negative, 75.5% were grade III, 100% Ki67 > 20%, and 90% of tumors were confirmed to be HER2/neu–positive through immunohistochemistry. Following PST, pathological complete response (pCR) rate was achieved in 44.7% evaluable patients. The pCR rate was higher in HR-negative (93.1% vs. 6.9%) cancer and in grade III (86.2%) than in grade I and II (13.8%) cancer; only 75.5% of complete response (CR) on ultrasound and magnetic resonance imaging were also CR on pathology results. Breast conserving surgery was performed in 41.4%. Regarding type of chemotherapy, there were no significant differences between chemotherapy with anthracycline backbone or taxanes to achieved pathological complete response. Despite that, we were unable to demonstrate an association between pCR and better DFS with p = 0.096; HR 5.7 95.0% CI (0.73–45.52). Patients who are hormonal receptor positive tend to have lower disease-free survival (DFS) than those who are hormonal receptor negative; HR = 6.34, 95.0% CI (1.54–26.00) and p = 0.010. Five years DFS was higher for those who achieved pCR compare with those who did not. Even in this research we failed to show it is statistically significant. Conclusion A sequential regimen of taxanes and anthracyclines plus trastuzumab was effective with high pCR rates and increases the possibility to do breast conservation surgery and had tolerable cardiotoxicity profile.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"089 - 095"},"PeriodicalIF":0.0,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0041-1729481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44168884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrative Treatment of Lung Cancer Patients: Observational Study of 57 Cases 肺癌患者综合治疗57例观察研究
Asian Journal of Oncology Pub Date : 2021-04-14 DOI: 10.1055/s-0040-1722380
L. Anelli, A. Di Nardo, M. Bonucci
{"title":"Integrative Treatment of Lung Cancer Patients: Observational Study of 57 Cases","authors":"L. Anelli, A. Di Nardo, M. Bonucci","doi":"10.1055/s-0040-1722380","DOIUrl":"https://doi.org/10.1055/s-0040-1722380","url":null,"abstract":"Abstract Introduction A retrospective clinical study was performed to identify the characteristics of patients with lung cancer treated with integrative cancer treatment in addition to conventional medicine. Materials and Methods We reviewed medical records for lung cancer patients who visited a single integrative setting in Rome, Italy. A total of 57 patients were included, and the majority had advanced-stage cancer. All of them underwent integrative therapy with nutrition and phytotherapy indications. The diet was designed to reduce most of possible factors promoting cancer proliferation, inflammation, and obesity. Foods with anti-inflammatory, prebiotic, antioxidant, and anticancer properties had been chosen. Herbal supplements with known effects on lung cancer were prescribed. In particular, astragal, apigenine, fucosterol, polydatin, epigallocatechin gallate, cannabis, curcumin, and inositol were used. Furthermore, medical mushrooms and other substances were used to improve the immune system and to reduce chemotherapy side effects. Five key parameters have been evaluated for 2 years starting at the first surgery: nutritional status, immune status, discontinuation of therapy, quality of life, and prognosis of the disease. Results A relevant improvement in parameters relative to nutritional status, immune status, and quality of life has been observed after integrative therapy compared with the same parameters at the first medical visit before starting such approach. Conclusion The results suggest that integrative therapy may have benefits in patients with lung cancer. Even though there are limitations, the study suggests that integrative therapy could improve nutritional status and quality of life, with possible positive effect on overall survival.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"064 - 075"},"PeriodicalIF":0.0,"publicationDate":"2021-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722380","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42047361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Breast Cancer Management during Coronavirus Disease 2019 Pandemic: A Literature Review 2019冠状病毒病大流行期间的乳腺癌管理:文献综述
Asian Journal of Oncology Pub Date : 2021-01-27 DOI: 10.1055/s-0040-1722809
A. Kurniawan, D. A. Halim, A. Giselvania, N. Sutandyo, S. S. Panigoro, A. Adisasmita, R. D. Hatma
{"title":"Breast Cancer Management during Coronavirus Disease 2019 Pandemic: A Literature Review","authors":"A. Kurniawan, D. A. Halim, A. Giselvania, N. Sutandyo, S. S. Panigoro, A. Adisasmita, R. D. Hatma","doi":"10.1055/s-0040-1722809","DOIUrl":"https://doi.org/10.1055/s-0040-1722809","url":null,"abstract":"Abstract Introduction Breast cancer is the most prevalent cancer found in women. The World Health Organization declared the coronavirus disease 2019 (COVID-19) as a public health emergency of international concern. Delaying treatment was associated with mortality. The aim is to evaluate breast cancer management during the pandemic. Methods We searched articles evaluating the management of breast cancer in the midst of COVID-19 outbreak, by searching in PubMed, PubMed Central, and Oncology Society related websites. We only included articles discussing adult breast cancer management in COVID-19 era. The two reviewers screened the titles and abstracts. Results Around 124 articles were found through the searching process. Eight observational trials, two review articles, six guidelines or recommendations, and one letter to the editor were included in final review. It was concluded that breast cancer posed a risk to contract COVID-19. Newly suspected breast cancer could be deferred for screening or diagnosis, except for special breast cancer cases with bleeding, invasive, and complicated tumors. The benefit of radiotherapy option in every case should be carefully weighed against the risk of infection. Oral chemotherapy and hormonal therapy drugs were preferred to be given than intravenous chemotherapy. The scheduled chemotherapy could be adjusted to reduce hospital visit. Each breast cancer patient is different, so they should be discussed in multidisciplinary team consisting of surgical, radiation, and medical oncologists, pathologist, radiologist, palliative care people, nurses, nutritionist, and others related to the field. Conclusion The International Oncology Society has released recommendations for breast cancer during COVID-19 pandemic but there is still questionable-quality evidence.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"052 - 059"},"PeriodicalIF":0.0,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722809","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44345787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Metastatic Extraskeletal Mesenchymal Chondrosarcoma of the Pancreas: Report of an Unusual Case with Review of Literature 胰腺转移性骨外间充质软骨肉瘤1例并文献复习
Asian Journal of Oncology Pub Date : 2021-01-26 DOI: 10.1055/s-0040-1722807
S. Shah, A. Parameswaran, P. Reddy
{"title":"Metastatic Extraskeletal Mesenchymal Chondrosarcoma of the Pancreas: Report of an Unusual Case with Review of Literature","authors":"S. Shah, A. Parameswaran, P. Reddy","doi":"10.1055/s-0040-1722807","DOIUrl":"https://doi.org/10.1055/s-0040-1722807","url":null,"abstract":"Abstract Extraskeletal mesenchymal chondrosarcoma (ESMC) metastasizing to the pancreas in isolation is a rare occurrence. We report a 49-year-old gentleman who had undergone excision of an ESMC of the thigh in 2009 and presented with sudden onset abdominal pain and icterus in 2019. Radiological imaging revealed calcified mass of the pancreas with multiple nodules with extension into the adipose tissue. Distal pancreatectomy was performed and the pathology revealed a bimorphic tumor composed of undifferentiated round blue cells with abrupt transition to hyaline cartilage, typical of mesenchymal chondrosarcoma. To the best of our knowledge, there are only seven prior cases of metastatic ESMC of the pancreas in the English literature. Surgical intervention appears to be the preferred modality of treatment for metastatic pancreatic tumors. These patients may have long latency period before metastasizing and seem to have a good survival period post excision.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"152 - 155"},"PeriodicalIF":0.0,"publicationDate":"2021-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722807","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42073996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Can the Choice of Radiotherapy Delivery Technique Influence Which Target Delineation Protocol to Use? A Plan-Quality-Based Analysis in Left Breast Cancer 放射治疗递送技术的选择是否会影响靶区描绘方案的选择?基于计划-质量的左乳腺癌分析
Asian Journal of Oncology Pub Date : 2020-12-30 DOI: 10.1055/s-0040-1722428
I. Ahmad, K. Chufal, C. P. Bhatt, A. Miller, R. Bajpai, R. Chowdhary, A. Pahuja, Akanksha Chhabra, M. Gairola
{"title":"Can the Choice of Radiotherapy Delivery Technique Influence Which Target Delineation Protocol to Use? A Plan-Quality-Based Analysis in Left Breast Cancer","authors":"I. Ahmad, K. Chufal, C. P. Bhatt, A. Miller, R. Bajpai, R. Chowdhary, A. Pahuja, Akanksha Chhabra, M. Gairola","doi":"10.1055/s-0040-1722428","DOIUrl":"https://doi.org/10.1055/s-0040-1722428","url":null,"abstract":"Abstract Introduction This study investigates the optimal target delineation protocol stratified by treatment planning technique in patients undergoing whole breast radiotherapy after breast conservation surgery. Materials and Methods Target delineation using Tangent (RTOG 0413 Whole Breast Irradiation Protocol), European SocieTy for Radiotherapy and Oncology (ESTRO), and Radiation Therapy & Oncology Group (RTOG) guidelines was performed on 10 randomly selected treatment planning computed tomography datasets of patients with left-sided breast cancer. An objective plan quality metric (PQM) scoring schema was defined and communicated to the medical physicist prior to commencement of treatment planning. Treatment planning was performed using field-in-field (FiF) intensity modulated radiotherapy technique (IMRT), inverse IMRT, and volumetric modulated arc therapy (VMAT), for each type of target. Two-way repeated measures, analysis of variance was utilized to compare the total PQM scores and dosimetric variables, stratified by treatment planning method. Results Total PQM score of plans for FiF, IMRT, and VMAT revealed that Tangent and ESTRO delineations were equivalent regardless of planning technique (Tangent vs. ESTRO for FiF, p = 0.099; Tangent vs. ESTRO for IMRT, p = 0.029; Tangent vs. ESTRO for VMAT, p = 0.438). Both delineation protocols were significantly superior to RTOG for all treatment planning techniques. Conclusion For all treatment planning techniques, ESTRO and Tangent delineation were equivalent and both achieved significantly higher scores than RTOG delineation.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"7 1","pages":"13 - 21"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722428","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44882098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primary Malignant Melanoma of the Vagina without Metastasis: A Rare Case and Review of Literature 未转移的原发性阴道恶性黑色素瘤:一例罕见病例及文献复习
Asian Journal of Oncology Pub Date : 2020-12-30 DOI: 10.1055/s-0040-1722110
Wilson Bizimana, G. Akimana, Arthur Semedo Insumbo, H. Jerguigue, R. Latib, Y. Omor
{"title":"Primary Malignant Melanoma of the Vagina without Metastasis: A Rare Case and Review of Literature","authors":"Wilson Bizimana, G. Akimana, Arthur Semedo Insumbo, H. Jerguigue, R. Latib, Y. Omor","doi":"10.1055/s-0040-1722110","DOIUrl":"https://doi.org/10.1055/s-0040-1722110","url":null,"abstract":"Abstract Malignant melanoma of vagina is a rare condition. Its histogenesis has been debated and the positive diagnosis is based on immunohistochemistry. Pelvic magnetic resonance imaging remains the gold standard for assessing locoregional extension status and post-treatment surveillance of melanoma of vagina. The observation concerned a 53-year-old woman with no specific history who presented a primary malignant melanoma of vagina without secondary locations. To date, the case is the second one reported in the literature. Early diagnosis of the malignant melanoma of vagina may improve patient survival because late diagnoses are punctuated by poor prognosis. We have presented epidemiological with etiopathogenic characteristics and described all imaging features to stage the tumor and to conduct the appropriate treatment.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"7 1","pages":"45 - 48"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722110","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44472215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Metastatic Signet Ring Cell Adenocarcinoma—An Autopsy Finding in Myocardium: A Rare Case Report 转移性标志环细胞腺癌——一例罕见的心肌尸检报告
Asian Journal of Oncology Pub Date : 2020-12-30 DOI: 10.1055/s-0040-1722109
Jasmeen Kaur, Amarvir Kaur, R. Punia, Harish Dsari
{"title":"Metastatic Signet Ring Cell Adenocarcinoma—An Autopsy Finding in Myocardium: A Rare Case Report","authors":"Jasmeen Kaur, Amarvir Kaur, R. Punia, Harish Dsari","doi":"10.1055/s-0040-1722109","DOIUrl":"https://doi.org/10.1055/s-0040-1722109","url":null,"abstract":"Abstract Introduction  Stomach is the most common primary site of signet ring cell adenocarcinoma unlike breast or pancreas. The distant metastasis is commonly seen in peritoneum, liver, and lungs. Few cases have been reported on metastasis in pericardial fluid with presentation of cardiac tamponade. However, to the best of my knowledge, myocardium is one of the rarest sites of distant metastasis. Case Report A 26-year-old male had abdominal pain at home and was brought dead to the hospital. The postmortem examination was done, and heart was sent for histopathological report. The gross examination of heart, lungs, liver, kidneys, and spleen were unremarkable and on microscopy, sections examined from lung and left ventricular wall showed infiltration by a tumor composed of signet ring cells and few glands in the background of the mucinous material and the primary site of tumor was suggested to be stomach and rectum, whereas sections examined from liver, kidneys and spleen did not show any significant pathological change or any metastatic deposit. Conclusion Distant metastasis of signet ring cell carcinoma is mostly seen in peritoneum, liver, and lungs. So, to conclude myocardium is the rarest site of distant metastasis. Therefore, the heart autopsy is of utmost importance to look for the cause of death and also important from the perspective of academic value.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"149 - 151"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1722109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43374457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dosimetric Comparison between High Dose Rate Brachytherapy Boost and Volumetric Arc Therapy Boost in Locally Advanced Cancer Cervix 局部晚期宫颈癌高剂量率近距离增强和体积弧增强治疗的剂量学比较
Asian Journal of Oncology Pub Date : 2020-12-14 DOI: 10.1055/s-0041-1729480
H. Hegazy, Neamat Hegazy, M. Soliman, A. Elsaid
{"title":"Dosimetric Comparison between High Dose Rate Brachytherapy Boost and Volumetric Arc Therapy Boost in Locally Advanced Cancer Cervix","authors":"H. Hegazy, Neamat Hegazy, M. Soliman, A. Elsaid","doi":"10.1055/s-0041-1729480","DOIUrl":"https://doi.org/10.1055/s-0041-1729480","url":null,"abstract":"Abstract Concurrent chemoradiotherapy is considered the standard treatment for the locally advanced cancer cervix (LACC). Radiotherapy is commonly administered by a three-dimensional conformal radiotherapy (3DCRT) approach followed by brachytherapy (BT). High dose rate (HDR) BT is commonly administered; however, several drawbacks exist including invasive technique, pain, requirement of anesthesia, and operative risks. We assessed the dosimetric difference between the HDR BT and the volumetric modulated arc therapy (VMAT) boost in those patients. Ten patients were selected retrospectively with LACC and all received whole pelvis radiotherapy followed by BT boost of 7 Gy in three fractions. The computed tomography (CT) image was transferred to the Varian system for the VMAT plan while the one with the applicator was transferred to the Sagi planning system and the high-risk clinical target volume (HR-CTV), bladder, rectum, sigmoid, and small bowel were delineate with a margin of 5 mm were added to the CTV to create the planning target volume (PTV). The D90 for the PTV in VMAT boost was lower than received by the HR-CTV in the BT boost. Mean volume of the PTV was higher than that of the HR-CTV. The D2cc was higher in VMAT for bladder, sigmoid, and rectum while the D2cc for the small bowel in BT was higher compared with the VMAT. The VMAT is an option that exists for patients who refuse BT or cannot tolerate it, or in case of nonavailability of BT or a nonworking machine.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"085 - 088"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0041-1729480","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43024155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Relevance of Combined Electron and Photon Beams in Radiotherapy of Head and Neck Cancers in the Era of Intensity-Modulated Radiotherapy 调强放射治疗时代电子和光子联合束在头颈癌放射治疗中的相关性
Asian Journal of Oncology Pub Date : 2020-11-29 DOI: 10.1055/s-0040-1718636
V. Pandey, K. Pandey, N. Pant, L. Verma
{"title":"Relevance of Combined Electron and Photon Beams in Radiotherapy of Head and Neck Cancers in the Era of Intensity-Modulated Radiotherapy","authors":"V. Pandey, K. Pandey, N. Pant, L. Verma","doi":"10.1055/s-0040-1718636","DOIUrl":"https://doi.org/10.1055/s-0040-1718636","url":null,"abstract":"Abstract Introduction External beam radiotherapy (EBRT) for head and neck (H&N) cancers continues to be delivered using varied technologies, ranging from the old two-dimensional conventional radiotherapy (2DRT) techniques to the modern three-dimensional conformal radiotherapy (3DCRT), intensity-modulated radiotherapy (IMRT), and volumetric modulated arc therapy (VMAT) in different centers in India. Due to limitations of spinal cord tolerance, electron and photon beams are combined in 2DRT and 3DCRT techniques for treating nodal volume of the H&N cases. However, many centers having modern technology practice IMRT/VMAT in place of electron beams. The purpose of this study is to analyze the role of combined electron and photon beams in radiotherapy of H&N cancers and its relevance in the modern era of IMRT/VMAT. Materials and Methods Data were collected through a survey conducted on cancer centers in India where radiotherapy is being given by 2DRT, 3DCRT, and IMR/VMAT for the treatment of head and neck cancers. Results The mean percentage of H&N (H&N) cases among all cases were 39.2% (standard deviation [SD]: 14.22), out of which 16.63% (SD: 20.83) were treated with a combination of photon and electron beams and 49.73% (SD: 37.41) were treated with IMRT/VMAT. The average percentage of H&N cases of government institutes was 38.39% (SD: 14.11) and that of private institutes was 40.14% (SD: 14.11). Patients treated with photon and electron combination and IMRT/VMAT were 22.19% (SD: 11.24) and 24.05% (SD: 23.99), respectively, in government institutes, and 10.29% (SD: 11.24) and 79.09% (SD: 26.75) in private institutes. Conclusion As per this study, we conclude that despite the availability of IMRT/VMAT, a combination of electron and photon beams is still relevant in India. Since a large proportion of the patients are still treated with the electron and photon combination, it is imperative that further studies on field–junction dosimetry should be conducted to ensure accurate dose delivery.","PeriodicalId":31357,"journal":{"name":"Asian Journal of Oncology","volume":"07 1","pages":"114 - 117"},"PeriodicalIF":0.0,"publicationDate":"2020-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1718636","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42352995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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