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January-March 2005 Volume 1 | Issue 1
Page Nos. 3-59
Accessed 177,618 times.
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EDITORIAL |
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At the cross roads and a new beginning
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p. 3 |
Nagraj G Huilgol DOI:10.4103/0973-1482.16081 PMID:17998616 |
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Trends in Basic, translational, epidemiological and therapeutic research in cancer
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p. 4 |
Rajiv Sarin DOI:10.4103/0973-1482.16082 PMID:17998617 |
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Radiation therapy for the developing countries
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p. 7 |
Vikram Bhadrasain DOI:10.4103/0973-1482.16083 PMID:17998618 |
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SPECIAL ARTICLE |
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A view from far - Letter from Europe |
p. 9 |
John Yarnold DOI:10.4103/0973-1482.16084 PMID:17998619 |
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REVIEW ARTICLE |
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Advantages of multiple algorithm support in treatment planning system for external beam dose calculations
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p. 12 |
Animesh DOI:10.4103/0973-1482.16085 PMID:17998620 The complexity of interactions and the nature of the approximations made in the formulation of the algorithm require that the user be familiar with the limitations of various models. As computer power keeps growing, calculation algorithms are tending more towards physically based models. The nature and quantity of the data required varies according to the model which may be either measurement based models or physical based models. Multiple dose calculation algorithm support found in XiO Treatment Planning System can be used to advantage when choice is to be made between speed and accuracy. Thus XiO allows end users generate plans accurately and quickly to optimize the delivery of radiation therapy.
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Management of locally advanced breast cancer: Evolution and current practice
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p. 21 |
Ashish Rustogi, Ashwini Budrukkar, Ketayun Dinshaw, Rakesh Jalali DOI:10.4103/0973-1482.16086 PMID:17998621 Locally advanced breast cancer (LABC) accounts for a sizeable number (30-60%) of breast cancer cases and is a common clinical scenario in developing countries. The treatment of LABC has evolved from single modality treatment, consisting of radical mutilating surgery or higher doses of radiotherapy in inoperable disease to multimodality management, which along with the above two included systemic therapy. Neoadjuvant chemotherapy (NACT) has made a tremendous impact on the management of LABC. NACT was initiated to institute systemic therapy upfront at the earliest in this group of patients with a high risk of micrometastasis burden. While NACT did not yield a survival advantage, it has however made breast conservation possible in selected group of cases. Large number of studies and many randomised trials have been done in women with LABC in order to improve the therapeutic decisions and also the local control and survival. With this background we have reviewed various treatment options in patients with LABC which should possibly help in guiding the clinicians for optimal management of LABC.
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ORIGINAL ARTICLE |
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Breast cancer in males: A PGIMER experience
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p. 31 |
Bhavana Rai, Sushmita Ghoshal, Suresh C Sharma DOI:10.4103/0973-1482.16087 PMID:17998622 Aim: Male breast cancer is a rare disease representing 1% of all breast cancers and less than 1% of all cancers in men. Because of its rarity, carcinoma breast has not been studied extensively and this prompted us to carry out this retrospective study. The aim of the study was to observe the clinical and pathological features, evaluate the prognostic factors and to co-relate the outcome in patients of male breast cancer.
Materials and Methods : Thirty patients of male breast cancer treated in the department of radiotherapy from year 1996-2000 were retrospectively analyzed.
Results: The actuarial five- year disease free survival was 40%. Three out of 30 i.e. 10% patients had loco-regional recurrence and all of them had locally advanced disease at presentation. Distant metastasis occurred in 9 patients of whom 6 patients had T3-T4 tumor and 1 patient had T1-T2 tumor.
Conclusion: Modified radical mastectomy followed by external radiation therapy is the standard treatment for male breast cancer. Hormone therapy, as an adjuvant treatment, is the first line approach in a majority of patients and chemotherapy is reserved for patients with poor prognostic factors.
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Three dimensional conformal radiation therapy in prostate adenocarcinoma: Survival and rectal toxicity
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p. 34 |
V Kannan, VK Sathiyanarayanan, S Sagde, Vivek Anand, Sachin Almel, Asha Kapadia, V Srinivas DOI:10.4103/0973-1482.16088 PMID:17998623 Technological advances in radiation beam planning and linear accelerator based radiation delivery have led to the development of three dimensional conformal radiation therapy (3D-CRT). The 3D-CRT clinical treatment in our hospital was started in September 1998 and till December 2002, 51 patients with M0 stage prostate carcinoma were treated. Treatment method consisted of pelvis and leg immobilization, planning CT scan, marking of planning target volume and organs at risk and 3D beam plan using multileaf collimated beam shaping through beam's eye view display. Network controlled 3D conformal radiation therapy was delivered with portal image verification. The median 3D-CRT dose was 72 Gy. Of the 51 patients, 35 were followed-up till December 2002 (minimum follow-up 2 years) in whom 32 were disease free and 3 had progressive disease. Eleven patients died, 8 of progressive disease, one due to second malignancy and two of intercurrent illness. Five patients were lost for follow up during 0 - 29 months period, after 3D-CRT. The acute rectal reaction (RTOG criteria) in 51 patients was grade 0 in 4, grade I in 31 and grade II in 16. None had greater than grade II rectal toxicity. The late rectal toxicity in 49 patients who had a minimum 6 months follow-up was grade 0 in 41, grade I in 3 and grade II in 5. Our experience suggests that a dose of 72 Gy by 3D-CRT can be safely delivered to the prostate and gastrointestinal tolerance during treatment and follow-up period was excellent.
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A phase I trial of tocoferol monoglucoside in patients undergoing hemi-body radiation
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p. 38 |
NG Huilgol, CK K Nair, P Merhotra, VT Kagiya DOI:10.4103/0973-1482.16089 PMID:17998624 Purpose: To evaluate Tocoferol monoglucoside (TMG), a water soluble vit. E. in a phase I trial, as a radiation protector in those undergoing hemi-body radiation for disseminated disease.
Materials and Methods: Patients scheduled to receive modified hemi-body radiation were accrued for the study. Patients not only had disseminated skeletal disease but, were heavily pretreated Seven patients were accrued for the study. Patients received 1 and 2 gms of TMG. 30-40 minutes before hemibody radiation. A dose of 600 cGy was delivered on telecobalt equipment at mid plane. Immediate Toxicities were evaluated as well as response to pain.
Results: All the seven patients underwent radiation uneventfully. There was no drug related toxicity. Pain relief was adequate.
Conclusion: Tocoferol monoglucoside an effective antioxidant with no significant acute toxicity, when administered in a dose of 1 or 2 gms per oral route. TMG being water-soluble can have global antioxidant and radio protective effects. This needs further clinical evaluation.
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Programmed cell death as a prognostic indicator for radiation therapy in cervical carcinoma patients: A pilot study
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p. 41 |
SM Bhosle, NG Huilgol, KP Mishra DOI:10.4103/0973-1482.16090 PMID:17998625 Purpose: In clinical practice, radiation therapy often fails in cervical carcinoma stage IIIB and there is a need to develop a predictive assay for prognosis of radiation treatment outcome in cancer patient. We have attempted to evaluate the relevance of changes in Membrane Fluidity (MF) and associated apoptotic cell death in cervical cancer cells after first fractionated dose of radiation therapy to treatment outcome of stage IIIB cervical carcinoma patients.
Materials and Methods: Biopsies of 15 patients with histologically proven cervix cancer were collected from the patients before and 24 h after first fractionated radiation dose of 2 grays (Gy). Cell suspension made in Dulbecco's Modified Eagle's Medium (DMEM) were used for further investigations and cell suspension of cervix cancer patient were used to measure MF by fluorescence polarization method and apoptotic index (AI) was determined by Tdt dUTP Nucleotide End Labeling (TUNEL) assay.
Results: A substantial increase in MF and AI was observed in cervical cancer cells irradiated ex vivo . A significant correlation ( P < 0.001) was found between the changes in AI after first fractionated dose of radiotherapy and treatment outcome of patients. No significant correlation ( P > 0.1) was detected between changes in MF and treatment outcome of patients.
Conclusion: Preliminary results showed significant change in MF and a marked increase in percentage apoptosis of cervix cancer cells irradiated ex vivo . The changes in AI after first fractionated dose of radiotherapy in cervical carcinoma patients may provide a predictor of prognosis for radiotherapy in uterine cervical carcinoma patients.
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Neo-adjuvant chemotherapy with cisplatin and short infusional 5-FU in advanced head and neck malignancies
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p. 46 |
Ranen Kanti Aich, Asit Ranjan Deb, Amitabh Ray DOI:10.4103/0973-1482.16091 PMID:17998626 Background: Combination of radical surgery and radiotherapy is the standard management of head and neck malignancies. But due to considerable morbidity of surgery and associated cosmetic and functional deficiencies, often aggravated by adjuvant radiotherapy, many patients prefer only radiotherapy with its' decreased chance of survival. Proper surgical facilities are also not accessible to most of our patients. Neo-adjuvant chemotherapy and loco-regional management by surgery and / or radiotherapy have emerged as a viable alternative.
Aims: The purpose of this study is to find out the survival outcome as well as toxicity profile of Neo-adjuvant chemotherapy with cisplatin and short infusional (3 hours) 5-FU followed by radiotherapy in advanced head and neck malignancies.
Materials and Methods: From June 2002 to December 2003, seventy four patients with advanced head and neck malignancies were planned to be treated with Cisplatin (50 mg / sq. meter) on Days 1 and 2 and 5 - FU (600 mg / sq. meter) on Days 1, 2 and 3 by 3 hour infusion on Day care basis. On completion of four cycles of chemotherapy at 21 days interval, all patients were destined to receive 6000 cGy of radiotherapy to the loco - regional site.
Results: At one year follow up on completion of therapy, 57% patients were alive and 31% patients were disease free. These 31% patients enjoyed a good quality of life in terms of cosmetic and functional deficits. Toxicities were moderate and easily manageable.
Conclusion: The study indicated that neo-adjuvant chemotherapy with Cisplatin and short infusional 5 - FU may be delivered on day care basis and results are comparable with Cisplatin and 96 hours continuous infusional 5 - FU. Thus avoiding the continuous infusional 5 - FU, 7 to 10 days in-patient hospitalization during each cycle may be avoided which is a constrain in developing countries like us. |
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A prospective study of pharyngocutaneous fistulas following total laryngectomy
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p. 51 |
SS Qureshi, P Chaturvedi, PS Pai, DA Chaukar, MS Deshpande, KA Pathak, AK D'cruz DOI:10.4103/0973-1482.16092 PMID:17998627 Pharyngocutaneous (PC) fistula is a common complication following laryngectomy. It leads to increased morbidity, delay in adjuvant treatment, prolonged hospitalization and an increase in treatment costs. Although a number of factors that result in PC fistula have been described, there is still no agreement on the most significant factors. We undertook a prospective study to critically analyze PC fistula and its association with various tumors, patient and treatment related factors. This was a prospective study that included 143 patients who underwent laryngeal surgery for squamous cell carcinoma of the larynx and pyriform sinus. Use of pectoralis major myocutaneous flap to reconstruct the neopharynx, primary disease in pyriform and extensive soft tissue infiltration were significantly associated with PC fistula. Prior treatment (radiotherapy and chemotherapy), type of closure (T closure, Y closure and vertical closure), Layers of closure (full thickness interrupted, submucosal interrupted, submucosal continuous) type of suture material (silk, vicryl ), age, sex, stage, preoperative tracheostomy, cut margin status, pre/postoperative hemoglobin and experience of surgeons did not relate significantly.
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CASE REPORT |
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Management dilemmas in radiation associated pelvic sarcoma
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p. 57 |
Vineeta Goel, Rajiv Sarin, Shyam Kishore Shrivastava, Sangeeta Desai, Ketayun A Dinshaw DOI:10.4103/0973-1482.16093 PMID:17998628 |
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