Showing 178 results for سرطان
A Zafarghandi , I Harirchi , M Ebrahimi , N Zamani , S Jarvandi , A Kazemnezhad ,
Volume 56, Issue 5 (7-1998)
Abstract
A retrospective study was conducted to investigate about breast cancer in Tehran from 1985 to 1995. All breast pathological records at five General District and Teaching Hospitals (18 general surgical wards) were reviewed and data were extracted. Overall, 3085 records were found (7291 female and 294 male). The final diagnosis was made for 2436 female records including 903 breast cancer (37.1%), 1430 benign breast disease (58.7%), 45 breast skin disease (1.8%) and 58 normal pathological report (2.4%). The dominant group age for breast cancer in women was age group of 40-49 years. The most frequent pathological stage was stage III. Breast cancer was also seen in 2.3 percent of women of 25 year old or younger. The diagnosis was also made for 278 men showing 32 breast cancer (11.5%), 23 benign breast disease (86%), 3 breast skin disease (1.1%) and 4 normal pathological report (1.4%). The results suggest that 3.5 percent of the overall breast cancer were men's, all having over 40 years of age with 60 years or older as the most frequent age. The most frequent pathological stage was stage III. The findings have some implications for public health professionals in terms of breast cancer screening in Iran.
H Borgheie , E Razmpa , F Tabloei ,
Volume 56, Issue 5 (7-1998)
Abstract
57 cases of jaw's SCC who were hospitalized in Imam Khomeini HSP, Amir-Alam HSP & Cancer Institute between the years of 1373 to 1376, were studied. 23 cases of them were female and the rest of them (34 cases) were male. The range of age of patients was between 25 to 85 years. 21 cases (36.8%) have maxillary involvement and 37 cases (64.9%) have mandibular involvement and there was one case (1.7%) of synchronous involvement of both sites. Patients were categorized according to their individual characteristics (sex, age, occupation, birth & living place), etiologic factors (smoking & familial susceptibility), complaints, sites of involvement in each jaw, histopathological characteristics of tumor (stage, grade, lymphatic involvement), rate of bone and soft tissue involvement, type of treatment, and recurrences of previous lesions. According to the results, and apart from late consultation of majority of patients with their physicians, invasive behaviours of tumoral lesions were less than expected rate. And despite of using radical and invasive treatments, considerable percent of patients were facing recurrence of their previous lesions. Besides, patterns of distribution of birth and living places of patients may probably show the role of geographical and environmental factors in making patients susceptible to certain diseases.
J Mikaily , R Malekzadeh , B Ziadalizadeh , M Valizadeh Toosi , A Khoncheh , S Masserat ,
Volume 57, Issue 1 (4-1999)
Abstract
Background: Gastric cancer (G.Ca) is significantly more prevalent in north western than central Iran. Growing evidence has related Helicobacter pylori (H.P) to G.Ca worldwide. We assessed the prevalence of H.P infection in high (Ardebil) and low (Yazd) prevalence of G.Ca provinces of Iran. Methods: Cluster sampling of healthy population aged less than 20 years was performed in Ardebil and Yazd provinces over 2 months. Ten cc blood was drawn from each person and H.P IgG was tested using ELISA (Diagnostic Corp., sensitivity 98%, specificity 96%). Results: 711 individuals (358 in Ardebil and 353 in Yazd) were enrolled. 170 individuals (47.5%) in Ardebil and 108 individuals (30.6%) in Yazd were positive for H.P (P<0.0001). Using logistic regression analysis, the predictive probability of H.P infection in different age groups was calculated. Conclusion: H.P infection is significantly more prevalent among individuals less than 20 years in areas with high prevalence of gastric cancer in Iran. Our data suggest a relation between H.P infection and gastric cancer in Iran
M Jamali Zavarehei , N Swdighy , Z Alizadeh , A Montazery , S Jarvandi , M Ansary ,
Volume 57, Issue 3 (6-1999)
Abstract
Fine-needle aspiration biopsy for the diagnosis of breast lesions has been used for more than six decades and has been established as an effective procedure in Europe for many years. In order to evaluate the accuracy of fine-needle aspiration with histopathologic confirmation, a retrospective study was performed in Iranian Center for Breast Cancer, using a computer database over one year period. All women who had had fine-needle aspiration breast biopsy with histopathologic diagnosis included open excisional biopsy or mastectomy specimen. A total of 49 patients fulfilled the criteria. The test had a 93% sensitivity, 73% specificity, 65% positive predictive value, and 95% negative predictive value. Fine-needle aspiration is a sensitive test that Van be useful as an adjuct in the diagnosis of breast cancer.
M Zafarqandi , M Moeeni , A Shojaeefar ,
Volume 57, Issue 4 (7-1999)
Abstract
Intestinal obstruction is a significant disease specially in patients with previous surgery. Patients symptoms and signs usually are abdominal pain, vomiting, abdominal distention and obstipation. Adhesion bands secondary to previous abdominal surgery is the most common cause of small bowel obstruction and in USA up to 70% of small bowel obstruction is caused by adhesions. In our study adhesion is also the most common cause but 23% of patients have obstruction secondary to adhesion. In the literature colorectal cancers are the most common cause of colonic obstruction and volvulus is the third common cause of colonic obstruction after obstruction from compressive effect of other primary abdominal or pelvic tumors. In our study vuvulus was the most common cause of colonic obstruction and colorectal cancer was the second most common cause. The most common previous surgery that lead to obstruction in our study was appendectomy. From 112 patients 75% of patients had complete and 25% had partial obstruction. Frequency of mortality was six from 112 patients or 5.3%. Seventy percent of our patients had small bowel obstruction and 30% had colonic obstruction. Patients with hypertension before surgery for obstruction had greater risk of mortality in the postoperative period than other patients. Patients with intestinal gangrene had greater risk of postoperative complication and morbidity than other patients.
Gh.r Togeh , M Keihani , A Athari , H Sadafi ,
Volume 58, Issue 1 (4-2000)
Abstract
Parasitic infections, especially opportunistic ones are important problems of immune deficient patients. These groups of patients can encompass a broad spectrum of cancer patients. Patients receiving immune suppressive chemotherapeutic agents and those who receive radiotherapy. This group of patients has much more susceptibility to infections and suffers more complications. The objective of this study is to determine the incidence of intestinal parasitic infestations in patients receiving immune suppressive anti-cancer agents. Stool sample of 261 patients under treatment with chemotherapeutic agents were collected and sent to parasitologic laboratory of Shahid Beheshti medical school. Every sample was evaluated with direct smears formalin and ether concentration technique, shitter dilution, zeil-nelson strip stain, culture on strip of filtration paper according to Hadamvory method and on agar plates. Thus, the incidence of intestinal parasitic infestations was evaluated. In this study 34% (89 samples) of patients, who had receive immunosuppressive medicine, had intestinal parasitic infestation. 31.4% of patients with intestinal parasitic infestation were under 20 years of age, 31.6% were between 21-50 years and 36.5% were above 51 years old. Statistical method did not show significant difference between the incidence of intestinal parasitic infestation and the 2 variables of age and sex. The rate of intestinal parasitic infestations in cancer patients with 1-4 courses of treatment was 34.5% and after more than 5 courses was 33.6%. Statistical analysis with X² test did reveal significant differences. Considering the above studies, we recommend: 1) Stool exam of all chemotherapy patients for intestinal parasites before chemotherapy treatment. 2) Five to seven stool exam is necessary for high-risk group. In other patients one stool examination is enough. 3) Repeated stool examination is recommended during chemotherapy. 4) More specific method is needed for detection of high-risk patients and suspected cases.
M.t Khorsi Ashtiani, Gh.a Dashti Khavidaki , S.h Samimi Ardestani,
Volume 64, Issue 1 (3-2006)
Abstract
Background and Aim: Total laryngectomy following laryngeal cancer has many sequelae , that loss of voice is the most important of them. Tracheoesophageal puncture (TEP) and prosthesis insertion has evolved into the most widely used and accepted technique for vocal rehabilitation.
Materials and Methods: 10 patients that underwent TEP in Amir Alam and Imam Khomeini hospitals from Feb. 2002 through Nov. 2003 were included in this study. Prosthesis insertion in 4 patients is primary and in 6 patients is secondary and all patients are men.
Results: The age of patients was between 50 to 70. 90% of patients had history of cigarette smoking and 10% of them had history of drinking alcohol. Salivary leakage was seen in 30% of patients that was improved with conservative management. Fluency of speech in 30% of patients and intelligibility of speech & voice quality in 40% of patients is good.
Conclusion: We could conclude that TEP has less complication & better speech results of other vocal rehabilitation methods. Carefully selection of patients & size of prosthesis has important role in results of TEP.
E. Keyhani, N. Kohannia, N. Izadimood, M. R. Keyhkhaee, H. Najmabadi,
Volume 64, Issue 3 (5-2006)
Abstract
Background: Cervical cancer is the second leading cause of cancer death among women. In this cancer, the effects of prevention, early diagnosis and treatment more than other cancers decrease the mortality rate. In 1970 human papilloma virus (HPV) was introduction as major etiologic factor of cervical cancer. Different studies throughout the world revealed strong correlation between HPV and cancerous & precancerous changes in epithelial cells. Since cell culture and serological methods can not recognize the virus and its subtypes, the importance of the molecular methods including polymerase chain reaction (PCR) in early and definite diagnosis of virus is obvious.
Methods: In this study, after patient selection using the related protocol and completion of the questionnaires, 100 samples from cancer lesions of cervix selected. Then DNA extraction from paraffin blocks performed using standard method. Multiplex PCR with two pairs of primer (one as internal control) performed and the PCR product run on 8% polyacrylamid gel.
Results: The results showed that 73% of the tissues were infected by HPV.
Conclusion: This finding confirm the previous results based of correlation between HPV,and cervical cancer.
Salehi Nodeh A.r, Ghaffori Sh, Alimohamadian M.h, Sarraf Nejad A, Mirshafiei A,
Volume 64, Issue 11 (10-2006)
Abstract
Background: TPS is one of the tumor markers which has specially been considered due to its exclusive physiological characteristics like its easy measurement in serum of cancer patients. This study has been due to evaluate the efficiency of this tumor marker in the prognosis, treatment control and follow up of patients with gastrointestinal cancers including esophagus, stomach and colorectal.
Methods: TPS has been measured in 109 persons including 28 healthy people and 81 patients with different gastrointestinal malignancies which were composed of 38 patients with esophageal cancer, 20 ones with stomach cancer and 23 ones with colorectal cancer. Sampling has been done in three times depending on treatment methods. TPS has been measured with ELISA in samples which contend of 2 to 3 ml of serum from patients and the health.
Results: The obtained results, demonstrate the obvious changes in TPS serum level in patients underwent various treatment procedures.
Conclusion: The results have revealed that the serum TPS is not only as a measure of prognosis but also would be helpful in follow up and treatment control of the disease. Moreover the results has shown that serological analysis can be settled in the diagnosis and follow up with production of polyclonal antibody against TPS gene family and planning appropriate pattern.
Modarres M, Mosavi A, Mohammadifar M, Behtash N, Ghaemmaghami F, Soltanpour F,
Volume 64, Issue 11 (10-2006)
Abstract
Background: Access to a safe and efficient chemotherapy regimen for improving the survival and live quality is a goal in ovarian carcinoma. Despite surgery is the base treatment of ovarian cancer, but in most patients chemotherapy is used due to progression of their disease. This study designed to compare two important chemotherapy regimens.
Methods: This historical cohort study compared two chemotherapy regimen cisplatin (75mg/m2)+ cyclophosphamide (750mg/m2), versus taxol (175mg/m2)+ carboplatinium (GFR+25)AUC between 1998-2005 in valiasr hospital. In this study toxicities of two regimes were compared. The survival function in these two groups were analysed with Kaplan-Meire curve.
Results: Gastrointestinal and mucosal toxicity were significantly higher in CP group compared TC group (p=0.02). Also there were no significant relation between decrease of serum CA125 and patient remission length in CP group but in other group with decrease of CA125 in lower than three cycle we had an increase in patient remission period. (P=0.02). Disease free interval in cisplatin group was longer versus taxol group (p<0.05), there was no significant difference in overall survival in two group.
Conclusion: This study revealed that cisplatin plus cyclophosphamide regimen can yet be used as a chemotherapy treatment in ovarian cancer. In this study there was no significant benefit in taxol regimen compared CP. In the adjuvant therapy of epithelial ovarian carcinoma.
Behtash N, Karimizarchi M,
Volume 64, Issue 12 (11-2006)
Abstract
Cervical cancer is the second most common gynecologic cancer. A steady 70% annual decline in mortality from cervical cancers has been observed since the mid 20th century after the introduction of widespread papanicolaou cytological screening. But also cervical cancer continues to be an important world health problem for women. Cervical cancer is one of the best- understood neoplasm given its well known viral cause of persistent infection with high risk human papillomavirus (HPV). To date, two manufacturers have developed HPV vaccines composed of noninfectious, recombinant HPV viral-like particles (VLPs). This article presents current advances and perspectives on HPV vaccines.The vaccine is administered by intramuscular injection, and the recommended schedule is a 3-dose series with the second and third doses administered 2 and 6 months after the first dose. The recommended age for vaccination of females is 11-12 years. Vaccine can be administered as young as age 9 years. Catch-up vaccination is recommended for females aged 13--26 years who have not been previously vaccinated. Vaccination is not a substitute for routine cervical cancer screening, and vaccinated females should have cervical cancer screening as recommended.
Mous0avi A.s, Behtash N, Karimi Zarchi M, Modarres Gilani M, Ghaemmaghami F,
Volume 65, Issue 2 (3-2008)
Abstract
Background: Although endometrial cancer is primarily a disease of the postmenopausal female, 25% of patients are premenopausal, with 3-5% in women 40 years old or younger. The younger group of women with endometrial carcinoma are frequently nulligravid with a history of infertility, and a strong desire to preserve fertility. This may pose a therapeutic dilemma for both patients and treating physician.
Case report: We reported 3 young patients with atypical complex hyperplasia or early stage endometrial cancer that treated with conservative hormonal therapy.
Conclusion: Medical treatment of young patients with endometrial carcinoma and complex atypical hyperplasia who wish to preserve fertility is a reasonable and appealing option. A comprehensive evaluation prior to counseling the patient should include
A complete history and physical examination. A formal D&C with review of history with an experienced gyn-onc pathologist. Evaluation of the pelvic and abdomen preferably with contrast-enhanced MRI or transvaginal ultrasound. In patients found to have a clinical stage I grade I tumor and who want to preserve fertility , thorough counseling include risks and benefits, and explanation that the data is partial and incomplete due to the lack of appropriate controlled studies is mandatory. In patients considered for medical treatment, a high dose progestin regimen should be started with endometrial sampling every 3 months until complete regression of the tumor is documented. Although most responses are long standing, there is a small risk of progression during or after cessation of progestin therapy.
Ghaemmaghami F, Hasanzadeh M, Modarresgilanimadani M, Behtash N, Mousavi As, Ramezanzadeh F,
Volume 65, Issue 4 (7-2007)
Abstract
Background: The aim of this study was to compare the outcome of treatment for ovarian cancer patients who have been treated by gynecologist oncologists and patients who have been treated by general gynecologists or general surgeons.
Methods: We enrolled in this cohort retrospective study all patients diagnosed with primary ovarian cancer in Vali-e-Asr Hospital, Tehran, Iran, between April 1999 and January 2005. A total 157 consecutive patients with ovarian cancer were available for analysis. Of these, 60 patients were treated by gynecologist oncologists and 95 by general gynecologists, and two patients were treated by general surgeons.
Results: The number of patients who underwent optimal cytoreductive surgery (residual tumor <1 cm) was higher in the gynecologist oncologist group, than in the general gynecologist group (P<0.001). Repeated surgeries were required for a majority of patients in the general gynecologist group, while only a few patients in the gynecologist oncologist group needed a second operation (P<0.0001). The interval between the initial surgery and the beginning of chemotherapy was significantly longer in the gynecologist oncologist group compared to that of the general oncologist group (P=0.001). Overall survival and disease-free survival was considerably greater in the gynecologist oncologist group. Optimal cytoreductive surgery and stage of disease are prognostic factors in patients with ovarian cancer. We can therefore conclude that patients with ovarian cancer who are treated by gynecologist oncologists have a better outcome.
Conclusions: We suggest that patients requiring cytoreductive surgery for ovarian cancer be referred to a gynecologist oncologist rather than having a less specialized physician care for such cases.
Ameri A, Ansari J, Mokhtari M, Chehrei A,
Volume 65, Issue 6 (9-2007)
Abstract
Background: Depending on the lung volume in radiotherapy fields, breast cancer radiotherapy has documented side effects on pulmonary function, which can be determined by pulmonary function tests. Central lung distance (CLD), the distance from the chest wall to the edge of the field at the central axis, is an indicator of lung volume within the radiotherapy fields. In this study, we aim to detect the relationship between CLD and pulmonary function tests.
Methods: In this study we included 50 patients with breast cancer receiving postoperative adjuvant radiotherapy at Imam Hossein Hospital, Tehran, Iran. The patients received radiotherapy with a total dose of 4800-5000 cGy. For all patients, the central lung distances were measured using simulation of tangential fields, in addition to determination of pulmonary function, including force vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) determined before radiotherapy, one month and three months after radiotherapy.
Results: There is no significant statistical difference between the FEV1 and FVC values before radiotherapy and those measured one month after radiotherapy however there was a significant statistical decrease in the FEV1 and FVC before radiotherapy and those measured three months after radiotherapy (P<0.001 and P<0.006, respectively). There is a positive statistical correlation between the change in the FEV1 three months after therapy and the CLD (r=0.71, p<0.01) and that of the FVC three months after therapy and the CLD (r=0.59, p<0.01). Linear regression for the prediction of FEV1 and FVC three months after radiotherapy was designed according to the CLD, FEV1 and FVC values before radiotherapy.
Conclusions: Three months after breast radiotherapy, the FEV1 and FVC values decrease, and the CLD is a proper predictor of these changes.
Arab Mr, Allahyari A, Sargolzaie Aval F, Rafighdoost H, Karimi M,
Volume 65, Issue 8 (11-2007)
Abstract
Background: The extracellular matrix is a complex three-dimensional network of proteins and glycosaminoglycans, which have important roles in cellular physiology and cell-cell and cell-extracellular matrix interactions. Any changes in the extracellular matrix of tumors may be implicated in cellular transformation and metastasis. The aim of the present study was to identify changes in the hyaluronic acid of the stroma of colonic carcinoma.
Methods: Paraffin blocks of 30 patients with colon carcinoma (10 patients at each histological grade) were chosen from the pathology file of Khatam-Al-Anbia Hospital in Zahedan, Iran. Tissue sections (5-6 micrometers thick) were stained with hematoxylin-eosin and the alcian blue critical electrolyte concentration histochemical technique at pH=5.8. The intensity of the staining in each section was graded as 1, 2 or 3, referring to low, moderate or severe staining reactivities, respectively. Statistical data was analyzed with nonparametric tests by SPSS (ver. 10) and histopathological reports were prepared.
Results: The results of this study showed that there is a good correlation between histopathological grading and staining intensity of tumoral stroma for hyaluronic acid (p<0.005). Analysis using the Mann Whitney test revealed significant differences between staining grades 1 and 3 and grades 2 and 3 (p<0.005 and p<0.002, respectively), although there was no significant difference between staining grades 1 and 2 for hyaluronic acid.
Conclusions: The difference in staining intensity of the stroma in colon carcinoma is a result of different amounts of hyaluronic acid in stroma, indicating that increased levels of hyaluronic acid are associated with the invasion and metastasis of neoplastic cells.
Amouzegar Hashemi F, Esmati E, Kalaghchi B,
Volume 65, Issue 11 (2-2008)
Abstract
Background: Carcinoma of the uterine cervix is the sixth most common malignant neoplasm in women. Early stage diagnosis of uterine cervix carcinoma increases the cure rate of disease. Radiotherapy, with or without concurrent chemotherapy, is one of the most effective treatment modality in cervical carcinoma. After radiotherapy, accurate and regular follow-up results in early diagnosis and effective treatment of recurrence. The aim of this study is the assessment of the pathologic characteristics, setting and indications for postoperative radiotherapy and outcome of patients at the last follow-up.
Methods: In this retrospective study, we evaluated 346 cases of cervical carcinoma had received radiotherapy in radiation oncology department of the Cancer Institute of Imam Khomeini Hospital, Tehran, Iran, from 1995 to 2001.
Results: The age of the study group ranged from 26 to 78 years (mean=50.5, SD=11). Of these patients, 30.4% were in the early stage and 69.6% had advanced stage disease. Squamous cell carcinoma comprised 92.2% of the cases and 6.4% adenocarcinoma. Radical radiotherapy was the most frequent radiotherapy setting and adjuvant radiotherapy (post-op) was the second. A considerable number of patients did not come back for follow-up, and 43.7% were followed for a short time.
Conclusion: Accurate presurgical clinical staging and surgical treatment by an expert gynecologic oncologist can reduce expose the patients to risks of two modality treatments (surgery and radiotherapy). According to our results, patients do not pay enough attention to disease follow-up. An acceptable training plan with emphasis on regular follow-up, is recommended.
Modares Gilani M, Behtash N, Karimi Zarchi M, Samizadeh Z, Ghaemmaghami F, Mousavi A,
Volume 66, Issue 7 (10-2008)
Abstract
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Background: Ovarian
cancer is the leading cause of death among all gynecologic cancers in developed
countries. The standard treatment for advanced ovarian cancer consists of
cytoreductive surgery associated with a platinum/paclitaxel-based chemotherapy.
Over than 50% of patients with advanced ovarian cancer will develop
recurrent disease. For those patients who have recurrence of disease at least six
months after initial therapy, the paclitaxel- platinum combination has been
shown to be a superior treatment to platinum monotherapy. However, many
patients develop clinically relevant neurotoxicity, frequently resulting in
treatment discontinuation. The efficacy and safety of an alternative regimen
that dose not show significant neurotoxicity were evaluated by comparing
gemcitabin- carboplatin with carboplatin in platinum sensitive recurrent
ovarian cancer patients in a Gynecologic Cancer InterGroup trial in Canada and
European Organization for research and treatment of Cancer Gynecological Cancer
Group. But this study was not done in Iran.
Methods: We performed a study with escalating doses of
gemcitabin combined with carboplatin in 21 patients. All patients who were treated in Vali-Asr
hospital between 2003- 2005 evaluated. Gemcitabin with dose of 800mg/m2 was given on days 1, 8 and 15 followed by one week rest period for a 28 day cycle.
Combine with carboplatin with AUC 4 given on day 2. All patients with surgically resected,
histologically confirmed epithelial ovarian cancer and who had failed first-
line platinum chemotherapy were allocated to this study.
Results: Median age was 49 years (range 23-78 years). Median follow-up was six months (range 4-22). Total of 87 cycles of
chemotherapy were administered with median number of four (range 2-6 cycles).
Thrombocytopenia (grade I) and leucopenia (grade I) were seen in 4.75% and 9.52% of patients.
Conclusion: Gemcitabin and carboplatin Combination was tolerated
in patients with recurrence of ovarian cancer.
Mojahed Mm, Aghili M, Kazemian A, Farhan F, Izadi Sh,
Volume 66, Issue 11 (2-2009)
Abstract
Background: Chemo-radiotherapy-induced oral mucositis represents a therapeutic challenge frequently encountered in cancer patients. This side effect causes significant morbidity and may delay or interruption of treatment plan, cyclo-oxygenase 2 (COX2) is an inducible enzyme primarily expressed in inflamed and tumoral tissues. COX-2 inhibitors have shown promise to reduce chemoradiation induce toxicities. We conducted a phase III, randomized double blind clinical trial to evaluate the toxicity and efficacy of celecoxib, a selective COX2 inhibitor, administered concurrently with chemoradiation for locally advanced head and neck cancer. Here in we report the first report about the role of COX-2 inhibitor in acute toxicicities.
Methods: Patients with stage III/IV (locally advance) head and neck carcinoma who referred to department of radiation-oncology were eligible. Patients were treated with chemotherapy with cisplatin concurrently with radiation (60-70Gy). Celecoxib (100mg qid) was started at the first day of radiotherapy and was given for a total of 8 weeks. Acute toxicities were evaluated every week by WHO scale.
Results: One hundred twenty two patients were enrolled into the study, (61 patients for each group). In repeated mesurment analysis of variance there is a significant difference in the time of onset of grade II acute toxicities between the two groups The mucositis, dysphagia, epidermitis and oral pain score changed significantly over the typical five weeks in two groups but these changes were more sever in placebo group (p=0.0001). In the analysis of the overall changes in the following laboratory parame-ters: WBC, hemoglobin and platelet showed that these parameters decreased over time in both groups without a significant difference between groups.
Conclusion: The results of these study showed that the use of a COX-2 inhibitor (celecoxib) that is a safe and inexpensive drug may reduce acute toxicities of chemoradiation specially mucositis in head and neck carcinoma.
Amouzegar Hashemi F, Zahedi F, Farhan F, Kalaghchi B, Mehrdad N, Haddad P,
Volume 66, Issue 12 (3-2009)
Abstract
Background: Treatment of cervical carcinoma is routinely performed with Low Dose Rate (LDR) brachytherapy, but Brachytherapy in our department is done with Medium Dose Rate (MDR) due to the technical characteristics of the machine available here. Thus we decided to evaluate the results of this treatment in our department in a prospective study.
Methods: Between March 2006 and July 2008, 140 patients with histologic diagnosis of cervical carcinoma referred to Tehran Cancer Institute were treated with external beam radiotherapy (44-64 Gy to whole pelvis) and MDR brachytherapy (8-30 Gy to Point A) with a dose rate of 2.2±0.3 Gy/h.
Results: 121 patients were followed up for a median time of 18 months (range: 9-39 m). There were 11%(6/54) local recurrence for surgery and adjuvant radiotherapy group 25%(16/65) for radical radiotherapy group, and 19%(23/121) for all patients. Rectal and bladder complications incidence for all patients were 10%(12/121) and 13%(16/121) respectively. High grade complication was shown only in one patient in radical radiotherapy group. In this study 3-years disease free survival and overall survival were 73% and 92% respectively, and disease stage (p=0.007) and overall treatment time (p=0.05) were the significant factors affecting disease free survival.
Conclusions: Results of this series suggest that the use of external beam radiotherapy and MDR brachytherapy with about 20% dose reduction in comparison with LDR can be an acceptable technique with regard to local control and complications.
Noori Daloii Mr, Ebrahimzadeh Vesal E,
Volume 67, Issue 1 (4-2009)
Abstract
The prostate is a small gland located below the bladder and upper part of the urethra. In developed countries prostate cancer is the second common cancer (after skin cancer), and also the second leading cause of cancer death (after lung cancer) among men. The several studies have been shown prostate cancer familial aggregation. The main reason for this aggregation is inheritance included genes. The family history is an important risk factor for developing the disease. The genes AR, CYP17, SRD5A2, HSD3B1 and HSD3B2 are all intimately involved in androgen metabolism and cell proliferation in the prostate. Each shows intraspecific polymorphism and variation among racial-ethnic groups that is associated with the risk of prostate cancer. Some of genes expressed in the prostate are in association with the production of seminal fluid and also with prostate cancer. Epigenetic modifications, specifically DNA hypermethylation, are believed to play an important role in the down-regulation of genes important for protection against prostate cancer. In prostate cancer numerous molecular and genetic aberrations have been described. It is now well established that cancer cells exhibit a number of genetic defects in apoptotic pathways. In this review article, the most recent data in molecular genetic, prevention and especially gene therapy in prostate cancer are introduced.
