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1.
Asian Pac J Cancer Prev ; 25(4): 1183-1188, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-38679976

ABSTRACT

BACKGROUND: There is still no definite conclusion regarding the effect of Induction Chemotherapy (IC) combined with concurrent Chemoradiotherapy (CRT). Thus this study was aimed to assess outcomes of IC followed By CRT versus CRT alone in Esophageal Squamous Cell Carcinoma (ESCC). METHODS: This multicenter retrospective study performed on 105 patients who underwent CRT and 73 patients who underwent IC+CRT, between January 2016 and December 2018. The primary endpoints were OS (from the date of treatment to the date of death or 3- years follow-Up). The toxicities of CRT were graded according to the National Cancer Institute Common Toxicity Criteria (version 3.0). RESULTS: one-year (73.8% vs. 53.2%) and 2-year (53.4% vs. 38.5%) OS rate of the IC+CRT group was significantly higher than that of the CRT group (p < 0.05). No statistically significant differences were observed between the IC+CRT group and the CRT group (31.5% vs. 27.4%) in terms of the 3-year OS rate (p > 0.05). In multivariate logistic regression, age<60 (OR: 1.48; CI 95% 1.02-1.97), clinical staging II (OR: 1.36; CI 95% 1.11-1.88), and the addition of IC (OR: 1.66; CI 95% 1.07-2.19) were independent prognostic factors that affected survival positively. CONCLUSION: Our data demonstrated that a combination of IC and CRT might be a promising treatment strategy to further improve OS in ESCC patients.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols , Chemoradiotherapy , Esophageal Neoplasms , Esophageal Squamous Cell Carcinoma , Induction Chemotherapy , Humans , Male , Female , Retrospective Studies , Middle Aged , Esophageal Neoplasms/therapy , Esophageal Neoplasms/pathology , Esophageal Neoplasms/mortality , Esophageal Squamous Cell Carcinoma/therapy , Esophageal Squamous Cell Carcinoma/pathology , Esophageal Squamous Cell Carcinoma/mortality , Survival Rate , Prognosis , Follow-Up Studies , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Aged , Adult
2.
Front Biosci (Landmark Ed) ; 28(10): 261, 2023 10 24.
Article in English | MEDLINE | ID: mdl-37919090

ABSTRACT

Cancer whose major problems are metastasis, treatment resistance, and recurrence is the leading cause of death worldwide. Tumor-initiating stem cells (TiSCs) are a subset of the tumor population responsible for tumor resistance and relapse. Understanding the characteristics and shared features between tumor-initiating stem cells (TiSCs) and long-lived postmitotic cells may hold a key to better understanding the biology of cancer. Postmitotic cells have exited the cell cycle and are transitioned into a non-dividing and terminally differentiated state with a specialized function within a tissue. Conversely, a cancer cell with TiSC feature can divide and produce a variety of progenies, and is responsible for disease progression, tumor resistance to therapy and immune system and disease relapse. Surprisingly, our comprehensive evaluation of TiSCs suggests common features with long-lived post-mitotic cells. They are similar in structure (primary cilia, high mitochondrial content, and being protected by a barrier), metabolism (autophagy and senescence), and function (immunoescape and/or immune-privileged by a blood barrier). In-depth exploration showed how mitochondrial metabolism contributes to these shared features, including high energy demands arising from ciliary and microtubular functionality, increased metabolic activity, and movement. These findings can assist in decoding the remaining properties which offer insights into the biology of TiSCs, with potential implications for enhancing cancer treatment strategies and patient prognosis.


Subject(s)
Neoplasms , Humans , Neoplasms/metabolism , Mitochondria/metabolism , Neoplastic Stem Cells/pathology , Cell Differentiation , Recurrence , Tumor Microenvironment
3.
Cancer Rep (Hoboken) ; 6(10): e1891, 2023 10.
Article in English | MEDLINE | ID: mdl-37592402

ABSTRACT

BACKGROUND: In patients with uterine adenosarcoma, a total abdominal hysterectomy (TAH) with bilateral salpingo-oophorectomy (BSO) is typically recommended as an initial treatment. There is no consensus on adjuvant therapies. CASE: We report the case of a patient with uterine adenosarcoma with postoperative residual disease. We performed four courses of adjuvant chemotherapy, including Ifosfamide, Mesna, and Adriamycin, and whole pelvic radiation with a dose of 50.4 Gy/28 Fr. CONCLUSION: A combination of chemotherapy and radiotherapy may be a promising treatment option for uterine adenosarcoma with postoperative residual disease.


Subject(s)
Adenosarcoma , Uterine Neoplasms , Female , Humans , Salpingo-oophorectomy , Uterine Neoplasms/diagnosis , Uterine Neoplasms/surgery , Hysterectomy , Adenosarcoma/diagnosis , Adenosarcoma/surgery
4.
J Med Signals Sens ; 13(1): 40-48, 2023.
Article in English | MEDLINE | ID: mdl-37292443

ABSTRACT

Background: Laryngeal damages after chemoradiation therapy (RT) in nonlaryngeal head-and-neck cancers (HNCs) can cause voice disorders and finally reduce the patient's quality of life (QOL). The aim of this study was to evaluate voice and predict laryngeal damages using statistical binary logistic regression (BLR) models in patients with nonlaryngeal HNCs. Methods: This cross-section experimental study was performed on seventy patients (46 males, 24 females) with an average age of 50.43 ± 16.54 years, with nonlaryngeal HNCs and eighty individuals with assumed normal voices. Subjective and objective voice assessment was carried out in three stages including before, at the end, and 6 months after treatment. Eventually, the Enter method of the BLR was used to measure the odds ratio of independent variables. Results: In objective evaluation, the acoustic parameters except for F0 increased significantly (P < 0.001) at the end treatment stage and decreased 6 months after treatment. The same trend can be seen in the subjective evaluations, whereas none of the values returned to pretreatment levels. Statistical models of BLR showed that chemotherapy (P < 0.05), mean laryngeal dose (P < 0.05), V50 Gy (P = 0.002), and gender (P = 0.008) had the greatest effect on incidence laryngeal damages. The model based on acoustic analysis had the highest percentage accuracy of 84.3%, sensitivity of 87.2%, and the area under the curve of 0.927. Conclusions: Voice evaluation and the use of BLR models to determine important factors were the optimum methods to reduce laryngeal damages and maintain the patient's QOL.

5.
Clin Case Rep ; 11(3): e7037, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36873064

ABSTRACT

In this report, we shared our experience in the treatment of a patient with unresectable sinonasal melanoma, in whom a complete radiographic response was seen after a course of conventional external beam radiotherapy. Given that local control has an important role in maintaining the quality of life of patients.

6.
Asian Pac J Cancer Prev ; 24(1): 61-67, 2023 Jan 01.
Article in English | MEDLINE | ID: mdl-36708552

ABSTRACT

BACKGROUND: The literature is inconsistent for the role of neutrophil-to-lymphocyte ratio (NLR) obtained before neoadjuvant therapy (pre-NLR) in predicting pathological response to neoadjuvant chemoradiation (neoCRT) in patients with locally advanced rectal cancer (LARC). In the present cohort study, we explored the predictive role of pre-NLR in this setting. METHODS: We prospectively included patients with LARC who were candidates for neoCRT at the Shohada-e-Hafte Tir Hospital (Tehran, Iran) between Mar 2018 and Feb 2020. The pre-NLR was obtained through a peripheral blood smear before CRT. We used the AJCC system for evaluating tumor regression grade (TRG). The TRGs were categorized into: response-group 1 (TRG 0-1 vs. 2-3), response-group 2 (TRG 0 vs. 1-3), and response-group 3 (TRG 0-2 vs. 3). We applied receiver operating characteristic (ROC) analysis to assess the predictive value of pre-NLR. RESULTS: Of the 86 screened patients with rectal cancer, 30   patients who fulfilled the inclusion criteria were included in the study. In total, 63.3% were responsive, and 23.3% had complete pathologic response. Pre-NLR could not predict the pathologic response in response-group 1 (area under the ROC curve [AUC]: 0.45, 95%CI 0.23-0.66) and response-group 2 (AUC: 0.36, 95%CI 0.13-0.59). Nevertheless, it had a poor predictive value in response-group 3 (AUC: 0.55, CI%95 0.33-0.75) with an optimal NLR cutoff value of 2.94. CONCLUSIONS: Pre-NLR could not predict the pathological response to neoCRT in our cohort of patients with LARC.


Subject(s)
Neutrophils , Rectal Neoplasms , Humans , Neutrophils/pathology , Neoadjuvant Therapy , Prospective Studies , Cohort Studies , Chemoradiotherapy , Iran , Lymphocytes/pathology , Biomarkers , Rectal Neoplasms/therapy , Rectal Neoplasms/pathology , Retrospective Studies
7.
Cureus ; 14(9): e29680, 2022 Sep.
Article in English | MEDLINE | ID: mdl-36321052

ABSTRACT

Metastatic renal cell carcinoma (RCC) is a therapeutic challenge to clinicians since it shows significant resistance to chemotherapy and radiation therapy. With the introduction of immunotherapy, the treatment paradigm for RCC has evolved. Here, we describe the case of a 55-year-old male who presented with flank pain. An abdominal-pelvic computed tomography (CT) scan revealed a right renal mass. Following open right radical nephrectomy, first-line treatment with sunitinib was administered. After four months he developed multiple metastases to the liver, lungs, abdominal wall, and brain. He initiated second-line treatment with nivolumab and also received whole brain radiation therapy (WBRT). Six months following combined treatment with nivolumab and WBRT, a CT scan revealed complete radiologic response in the lungs, abdominal wall, brain, and liver except for the persistence of a subhepatic mass. Despite the discontinuation of nivolumab and starting bevacizumab due to financial problems, the patient was stable for 22 months, and after this, he was hospitalized with high bilirubin levels. An abdominal CT scan detected the development of the necrotic subhepatic mass compressing the common bile duct (CBD), with no other sign of metastatic disease. We believe that the explanation for this long-term disease control could be the combination of immune-checkpoint-inhibitor (ICI) with WBRT resulting in significant cranial and extracranial immune response, known as "the abscopal effect". This report highlights the importance of local therapy combined with ICI-based therapy in metastatic RCC.

8.
Abdom Radiol (NY) ; 47(11): 3645-3659, 2022 11.
Article in English | MEDLINE | ID: mdl-35951085

ABSTRACT

PURPOSE: The current study aimed to evaluate the association of endorectal ultrasound (EUS) radiomics features at different denoising filters based on machine learning algorithms and to predict radiotherapy response in locally advanced rectal cancer (LARC) patients. METHODS: The EUS images of forty-three LARC patients, as a predictive biomarker for predicting the treatment response of neoadjuvant chemoradiotherapy (NCRT), were investigated. For despeckling, the EUS images were preprocessed by traditional filters (bilateral, wiener, lee, frost, median, and wavelet filters). The rectal tumors were delineated by two readers separately, and radiomics features were extracted. The least absolute shrinkage and selection operator were used for feature selection. Classifiers including logistic regression (LR), K-nearest neighbor (KNN), support vector machine (SVM), random forest, naive Bayes, and decision tree were trained using stratified fivefold cross-validation for model development. The area under the curve (AUC) of the receiver operating characteristic curve followed by accuracy, precision, sensitivity, and specificity were obtained for model performance assessment. RESULTS: The wavelet filter had the best results with means of AUC: 0.83, accuracy: 77.41%, precision: 82.15%, and sensitivity: 79.41%. LR and SVM by having AUC: 0.71 and 0.76; accuracy: 70.0% and 71.5%; precision: 75.0% and 73.0%; sensitivity: 69.8% and 80.2%; and specificity: 70.0% and 60.9% had the highest model's performance, respectively. CONCLUSION: This study demonstrated that the EUS-based radiomics model could serve as pretreatment biomarkers in predicting pathologic features of rectal cancer. The wavelet filter and machine learning methods (LR and SVM) had good results on the EUS images of rectal cancer.


Subject(s)
Magnetic Resonance Imaging , Rectal Neoplasms , Bayes Theorem , Humans , Machine Learning , Magnetic Resonance Imaging/methods , Rectal Neoplasms/diagnostic imaging , Rectal Neoplasms/radiotherapy , Rectum/pathology , Retrospective Studies
9.
Med J Islam Repub Iran ; 36: 16, 2022.
Article in English | MEDLINE | ID: mdl-35999926

ABSTRACT

Background: Two-dimensional (2D) radiographic parameters have been used to estimate the amount of heart and lung irradiated for minimizing heart and lung complications in breast cancer patients. The aim of this study was to investigate the correlation between traditionally used 2D radiographic and dose-volume parameters during adjuvant radiotherapy of breast cancer. Methods: In this cross-sectional study, we analyzed 121 female patients treated with breast-conserving surgery (BCS) or modified radical mastectomy (MRM) and 3D conformal radiotherapy (3DCRT) using two-field radiotherapy (2FRT) or three-field radiotherapy (3FRT) technique. All patients underwent computed tomography (CT)-planning. Two-D parameters, including central lung distance (CLD), maximum lung depth (MLD), maximum heart length (MHL), maximum heart distance (MHD), and chest wall separation (CWS), were measured using digitally reconstructed radiographs (DRR) and CT images. DVHs for lung, heart, and target were created. The Pearson correlation test was used to evaluate the correlation between 2D radiographic and dose-volume parameters. Results: There was a correlation between CLD and ipsilateral lung V5-20Gy and Dmean and between MLD and ipsilateral lung V5-20Gy. In 2FRT, only moderate correlation between CLD and ipsilateral lung V20Gy (r = 0.453, P = 0.003) and between MLD and ipsilateral lung V20Gy (r = 0.593, P <0.001) were observed. Poor correlation of MHL and heart V25Gy (r = 0.409, P = 0.007) was seen only in 3FRT. There was a correlation between MHD and heart dose-volume data, with a strong correlation between MHD and heart V5-25Gy and Dmean (r = 0.875-0.934, P<0.001) in the 2FRT group. No correlation between CWS and breast Dmax was found. Conclusion: There was a correlation between 2D parameters (i.e., CLD, MLD, and MHD) and the heart and lung dose-volume parameters during adjuvant breast radiotherapy. Although CLD was correlated to ipsilateral lung V5-20Gy and Dmean, the correlation between CLD and ipsilateral lung V20Gy was greater than other dose-volume parameters. MHD provided a close estimation of heart dose-volume parameters.

10.
Prague Med Rep ; 123(2): 113-119, 2022.
Article in English | MEDLINE | ID: mdl-35507944

ABSTRACT

Eosinophilic angiocentric fibrosis (EAF) is a rare progressive fibrosing lesion involving the nasal cavity, paranasal sinuses, and the upper respiratory tract. There are few reports that it rarely involves the orbit; however, there is no report of intracranial involvement. Here, we report and share our experience with a rare case of primary intracranial EAF. A 33-year-old woman with a history of a suprasellar mass and unsuccessful surgical and medical treatment referred to us. Physical examination demonstrated right-sided blindness and ptosis, left-sided decreased visual acuity, and visual field defect. The brain imaging revealed an extra-axial intradural well-defined large suprasellar mass with parasellar (more on the right side) and retrosellar extension. Via pterional craniotomy and subfrontal approach, a very firm creamy-brownish well-defined fibrotic mass was encountered. The tumour texture was too firm to be totally resected. The microscope exited the surgical field off, and the tumour was incompletely resected using a rongeur. The histopathology finding favoured EAF. Further histopathology evaluation failed to show histologic features of IgG4-related disease. Although the preoperative diagnosis of EAF is impossible, in the setting of an indolent slow-growing lesion demonstrating hypointensity on the T2 image sequence of MRI (magnetic resonance imaging), EAF should be considered a differential diagnosis. In the setting of this diagnosis, the systemic and other organ involvement for a diagnosis of IgG4-RD should be evaluated. However, more cases are needed to illustrate the relation between these two entities.


Subject(s)
Eosinophilia , Adult , Brain , Eosinophilia/pathology , Female , Fibrosis , Humans , Magnetic Resonance Imaging/methods
11.
Clin Case Rep ; 9(10): e04993, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34745616

ABSTRACT

Denosumab, a monoclonal antibody that specifically targets cytokine receptor activator of nuclear factor-kappa B ligand (RANKL), is a potentially viable option in resistant aneurysmal bone cysts.

12.
Med J Islam Repub Iran ; 35: 69, 2021.
Article in English | MEDLINE | ID: mdl-34277506

ABSTRACT

Background: Radiation-induced rectal toxicities remain as a major risk during prostate radiotherapy. One approach to the reduction of rectal radiation dose is to physically increase the distance between the rectal wall and prostate. Therefore, the aim of this study was to evaluate whether the application of the rectal retractor (RR) can reduce rectal dose and toxicity in prostate cancer 3-dimensional conformal radiotherapy (3D-CRT). Methods: Overall, 36 patients with localized prostate cancer were randomized into the 2 groups, 18 patients with RR in-place and 18 without RR. All patients underwent planning computed tomography (CT). Patients were treated with 70 Gy in 35 fractions of 3D-CRT. In the RR group, RR was used during cone-down 20 treatment fractions. Acute and late gastrointestinal (GI) toxicities were assessed using EORTC/RTOG scoring system weekly during radiotherapy, 3, and 12 months after treatment. Device-related events were recorded according to CTCAE version 4.0. Patient characteristics, cancer differences, and dosimetric data for the RR and non-RR groups were compared using a Man-Whitney U test for continuous variables, and Fisher exact test for categorical data. The EORTC/RTOG scores for the 2 groups were compared using Fisher exact test. A P value <0.05 was considered statistically significant. Results: A RR significantly reduced mean dose (Dmean) to the rectum as well as rectal volume receiving 50% to 95% (V50-95%) of prescribed dose. The absolute reduction of rectal Dmean was 10.3 Gy. There was no statistically significant difference in acute GI toxicity between groups during treatment or at 3 months. At 12 months, 2 patients in the RR group and 9 in the control group experienced late grade ≥ 1 GI toxicity (p=0.027). No patients in the RR group reported late grade ≥ 2 GI toxicity, whereas 3 patients in the control group experienced late grade 2 GI toxicity. In the RR group, 6 patients reported grade 1 rectal discomfort and pain according to CTCAE version 4.0. Conclusion: The application of the RR showed a significant rectum sparing effect, resulting in substantially reducing late GI toxicity.

13.
Cancer Rep (Hoboken) ; 4(5): e1376, 2021 10.
Article in English | MEDLINE | ID: mdl-33797199

ABSTRACT

BACKGROUND: Intraoperative electron radiotherapy (IOERT) followed by hypofractionated whole breast irradiation (HWBI) provides the shortest possible time of adjuvant breast irradiation. The efficacy of either method has been described in previous reports; however, to our knowledge, the efficacy of combined therapy has not been reported. AIM: To compare the toxicity and cosmetic outcome of IOERT as a tumor bed boost followed by HWBI with conventional whole breast irradiation (CWBI) followed by external electron tumor bed boost (EETBB) after breast conserving surgery (BCS) in patients with invasive breast cancer. METHODS: In 2019, a prospective noninferiority trial (IRCT20180919041070N2) was started. After BCS, early-stage breast cancer patients were treated by IOERT (10 Gy) and HWBI (42.56 Gy in 16 fractions) or CWBI (50 Gy in 25 fraction) and EETBB (10 Gy in 5) in a double-arm design. Acute/late toxicity and cosmetic outcome were evaluated by common toxicity criteria (CTC) after 1-year follow-up (FUP) at the level of p < .05. RESULTS: Of 60 eligible patients, 30 were allocated to each group. Regarding acute effects after a median FUP of 12 months, CTC-score of grade II-III erythema (p = .001) and desquamation (p = .005) were significantly higher in CWBI+EETBB compared to IOERT+ HWBI. However, there were no significant differences at the end of radiotherapy and after 1 month, 6 months, and 1 year. Cosmetic outcome after radiation was similar in both groups mostly rating as good/excellent after 1-year FUP. CONCLUSIONS: Boost-IOERT/HWBI regimen has comparable acute and late treatment toxicity profiles compared to the CWBI.


Subject(s)
Breast Neoplasms/radiotherapy , Electrons/therapeutic use , Radiation Dose Hypofractionation , Radiotherapy, Adjuvant/mortality , Breast Neoplasms/pathology , Equivalence Trials as Topic , Female , Follow-Up Studies , Humans , Middle Aged , Prognosis , Prospective Studies , Survival Rate
14.
Asian Pac J Cancer Prev ; 22(1): 19-24, 2021 Jan 01.
Article in English | MEDLINE | ID: mdl-33507674

ABSTRACT

As of late 2019, the outbreak of novel coronavirus disease (COVID-19) -that started in China- has rapidly afflicted all over the world. The COVID-19 pandemic has challenged health-care facilities to provide optimal care. In this context, cancer care requires special attention because of its peculiar status by including patients who are commonly immunocompromised and treatments that are often highly toxic. In this review article, we have classified the main impacts of the COVID-19 pandemic on oncology practices -followed by their solutions- into ten categories, including impacts on (1) health care providers, (2) medical equipment, (3) access to medications, (4) treatment approaches, (5) patients' referral, (6) patients' accommodation, (7) patients' psychological health, (8) cancer research, (9) tumor board meetings, and (10) economic income of cancer centers. The effective identification and management of all these challenges will improve the standards of cancer care over the viral pandemic and can be a practical paradigm for possible future crises.
.


Subject(s)
COVID-19 , Medical Oncology/organization & administration , Neoplasms/therapy , Humans
15.
Med J Islam Repub Iran ; 35: 162, 2021.
Article in English | MEDLINE | ID: mdl-35465166

ABSTRACT

Background: Breast cancer is one of the most common cancers. Researchers are trying to diagnose the disease through easier and safer methods. Serum markers such as ferritin and vitamin D level would be very helpful. This research could pave the way for more comprehensive studies on how to use this serum factor in breast cancer screening, as well as early detection of the disease in its early stages. Methods: This study consisted of two groups, the first group comprising patients diagnosed with breast cancer before undergoing any treatment and the second group as control were healthy people. Serum ferritin and vitamin D levels were measured. Pathological information of the patient's tumor, including ER, HER2, KI67, lymphovascular invasion, and disease stage, were collected as well. Data were analyzed by IBM SPSS advanced statistics version 23.0 (SPSS Inc., Chicago, IL). P-value of ≤0.05 was considered significant. Results: Eighty-eight subjects were enrolled in this study, 29 (33%) breast cancer patients and 59 (67%) healthy women. In breast cancer patients, serum ferritin levels were 106.55±111.25, which were higher than healthy women's serum ferritin 52.71±36.95 (p=0.083). Furthermore, 18 (66.7%) of breast cancer patients and 55 (93.2%) of healthy women had low serum ferritin levels (p=0.001). 3 (11.1%) patients in the cancer group had serum vitamin D deficiency, while all subjects in the control group had serum vitamin D higher than 10 ng/dl (p =0.009). Conclusion: The results of this study showed a correlation between breast cancer and vitamin D deficiency, and elevated ferritin. Perhaps with further studies, there could be a role in predicting the prognosis and screening of breast cancer for these associations.

16.
Med J Islam Repub Iran ; 35: 140, 2021.
Article in English | MEDLINE | ID: mdl-35321371

ABSTRACT

Background: Neoadjuvant chemoradiation is one of the main treatment approaches in esophageal cancer treatment, which can improve outcomes of a patient with esophageal cancer. In the current study, we aimed to compare the response rate and side effects of 2 distinctive neoadjuvant chemoradiation protocols. Methods: The study was a randomized clinical trial that was performed on 70 patients with esophageal and gastroesophageal junction cancer in Iran. The study participants were randomly assigned to 1 of our treatment groups. The first group received capecitabine (625 mg/m2/TID) and oxaliplatin (50 mg/m2/weekly), while the second group was given a combination of carboplatin (AUC:2/weekly) and paclitaxel (75mg/m2/weekly). Both groups were given weekly 50.4-54 Gy dose of RT. Chi square and Fisher exact tests have been used for data analysis. All statistical tests were performed using SPSS software Version 22.0 and the significance level was set at 0.05. Results: Complete pathological response was detected in 18(51.4%) of patients in group I and 8 (22.8%) in group II (p=0.013). We also observed higher thrombocytopenia in CarTax arm 19 (54.2%) in comparison to CapOX arm 8(22.8%), and the difference was statistically significant (p=0.007). No statistical difference was found regarding neutropenia, fatigue, anorexia, esophagitis, and diarrhea. Conclusion: The CapOxRT regime provides more favorable outcomes and also it is more tolerated by patients.

17.
J Family Med Prim Care ; 9(12): 6135-6139, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33681053

ABSTRACT

BACKGROUND: Irradiation of the adjacent critical structures is inevitable in breast cancer radiotherapy (RT). Our purpose is to assess the dose distribution across the breast tissue and adjacent organs with our institutional asymmetric technique for left-sided breast cancer compared to the standard tangential wedged beam (TWB) and electron-boosted TWB techniques. MATERIALS AND METHODS: The three RT planning were created for 30 consecutive patients with a focus on proper coverage of the planning target volume (PTV). The irritated doses into the heart, ipsilateral lung, and left anterior descending artery (LAD) were evaluated. RESULTS: No significant difference was found in the mean values of relative PTV irradiated to 47.5 Gy, PTV dose and the volume of PTV, and critical organs between the treatments. The mean dose (Dmean) irradiated to the heart and LAD was lowest with the electron-boosted TWB. The Dmean to the heart was comparable between the TWB and asymmetric RT techniques, while the Dmean to LAD was significantly reduced with asymmetric technique versus TWB. The heart volume receiving ≥25 Gy and the Dmean to the left lung were significantly decreased with the asymmetric technique compared with TWB. The mean relative lung volume irradiated to ≥20 Gy was comparable between all techniques. The mean central lung distance was also significantly increased from 18.03 ± 4.5 cm with asymmetric RT to 37.47 ± 5.6 cm with TWB and to 27.67 ± 3.8 cm with electron-boosted TWB techniques. CONCLUSION: The asymmetric technique is useful for patients with breast cancer on the left side, having acceptable PTV coverage and considerably reduced cardiopulmonary doses.

18.
J Therm Biol ; 84: 129-135, 2019 Aug.
Article in English | MEDLINE | ID: mdl-31466745

ABSTRACT

INTRODUCTION: Since the survival time of patients with bony metastases has noticeably improved in recent years, these patients are at high risk of complications associated with this metastasis. Hence, the appropriate choice of treatment modality or combination of therapeutic approaches can lead to increasing bone pain relief, improving quality of life, etc. This study is aimed to evaluate the effectiveness of combined radiotherapy and hyperthermia for the treatment response of patients with painful bony metastases. PATIENTS AND METHODS: In a single-arm clinical trial, 23 eligible patients (14 female and 9 male) with the mean age of 67 years old and suffering from bony metastases were enrolled in the study. Two hours after radiotherapy, the patients underwent hyperthermia for 1 h in the supine position. All the patients completed the brief pain inventory (BPI) assessment tool and quality of life questionnaire (QLQ-C30) from the European Organization for Research and Treatment of Cancer (EORTC) at the baseline, end of the treatment and 1, 2 and 3 months thereafter. The response to the treatment was assessed as the zero score (complete response) or two or more than two-point drop of the worst pain within the preceding 24 h (partial response) during the 3-month posttreatment. RESULTS: All the pain intensity and interference scores, except the pain interference with the enjoyment of life score, significantly decreased. A total of 18 out of 23 patients (78%) achieved complete or partial response. The number of patients using pain relief medications decreased from 74% (n=17) at the baseline to 48% (n=11) 3 months later. Moreover, except for nausea and vomiting, appetite loss, diarrhea and financial impact problems, the patients' quality of life improved significantly in all the functional scales and symptoms within 3 months. CONCLUSION: This study showed that using hyperthermia in combination with radiotherapy significantly ameliorated bone pain among the patients suffering from cancer with painful bony metastases.


Subject(s)
Bone Neoplasms/therapy , Cancer Pain/therapy , Hyperthermia, Induced , Adult , Aged , Aged, 80 and over , Bone Neoplasms/radiotherapy , Bone Neoplasms/secondary , Breast Neoplasms/pathology , Cancer Pain/radiotherapy , Combined Modality Therapy , Female , Humans , Lung Neoplasms/pathology , Male , Middle Aged , Prostatic Neoplasms/pathology , Quality of Life , Treatment Outcome
19.
Blood Coagul Fibrinolysis ; 28(5): 351-355, 2017 Jul.
Article in English | MEDLINE | ID: mdl-27661390

ABSTRACT

: Venous thromboembolism (VTE), which mostly includes deep vein thrombosis (DVT) and pulmonary embolism (PE), is associated with considerable morbidity and mortality in patients with cancer. As little is known about VTE associated with gastrointestinal cancers among the populations in the Middle East. This study aimed to determine the relative frequency of symptomatic VTE in patients with gastrointestinal malignancies in Iran. The charts of patients with gastrointestinal cancers in our institute from April 2010 to March 2015 were investigated for symptomatic VTE in a retrospective study. In this study, all of the patients received chemotherapy. The data included the site of cancer, time of therapies initiation, patient's characteristics, type of VTE, the time of developing symptomatic VTE of patients with gastrointestinal cancer and the stage which VTE occurred. All of DVTs and pulmonary embolism were confirmed by Doppler ultrasonography and computed tomography angiography. A total of 614 consecutive patients with gastrointestinal cancer were included in study. In total, 22 patients (3.6%) were found to have experienced symptomatic VTE (confidence interval 95%: 2.1-5.1%) which included: 19 patients who suffered from DVT and three of them detected pulmonary embolism, and other types of VTE were not reported. Out of 22 patients with VTE, 17 of them have been occurred after chemotherapy (77%) within 6.17 ±â€Š5.17 (range, 1-19) month after starting chemotherapy. The distribution of frequency of stage in which the VTE occurred, was more in stage III and IV. The rate of symptomatic VTE in patients with gastrointestinal cancer in Iran is relatively lower than other studies done in the west. Therefore, it seems the rate of VTE differs in different ethnic groups.


Subject(s)
Gastrointestinal Neoplasms/complications , Venous Thromboembolism/epidemiology , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Antineoplastic Agents/therapeutic use , Child , Female , Gastrointestinal Neoplasms/drug therapy , Gastrointestinal Neoplasms/pathology , Humans , Incidence , Iran/epidemiology , Male , Middle Aged , Neoplasm Staging , Retrospective Studies , Risk Factors , Sex Factors , Young Adult
20.
Rare Tumors ; 7(2): 5517, 2015 May 05.
Article in English | MEDLINE | ID: mdl-26266005

ABSTRACT

Small bowel cancer is one of the rarest cancers in the gastrointestinal tract. The diagnosis is usually late and most patients presented with the advanced stage. Because of this rarity, there is limited data when making decisions for treatment and biological behavior. Most forms of the cancer occur in the duodenum with surgery being the treatment of choice if the cancer is operable. Chemotherapy has an accepted role in duodenal cancer, with the best form being regimen, which yields the best result in combination with capecitabin and oxaliplatin. Our case patient was present with liver metastasis and a huge mass in her first duodenal region so we were required to use chemotherapy and radiotherapy. Like other duodenal cancers, the metastasis decreased her survival and she died about 13 months after diagnosis.

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