Research Topics
| Srinivasan VijayakumarSummaryAffiliation: University of California Country: USA Publications
| Collaborators
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Detail Information
Publications
An electronic application for rapidly calculating Charlson comorbidity scoreWilliam H Hall
University of California, Davis, Department of Radiation Oncology, UC Davis Cancer Center, 4501 X Street, G126, Sacramento, CA 95817, USA
BMC Cancer 4:94. 2004..Unfortunately, the use of such scales has yet to be widely integrated into either clinical practice or clinical trials research...
Clinical trials using chemopreventive vitamin D analogs in breast cancerSrinivasan Vijayakumar
Department of Radiation Oncology, UC Davis Cancer Center, Sacramento, California 95817, USA
Cancer J 12:445-50. 2006..This has led to the development of less calcemic analogs of vitamin D. We review the clinical trials with breast cancer patients using vitamin D analogs...
Evaluating the role of prophylactic gastrostomy tube placement prior to definitive chemoradiotherapy for head and neck cancerAllen M Chen
Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA 95817, USA
Int J Radiat Oncol Biol Phys 78:1026-32. 2010..To determine the effect of prophylactic gastrostomy tube (GT) placement on acute and long-term outcome for patients treated with definitive chemoradiotherapy for locally advanced head and neck cancer...- The impact of body mass index on heterotopic ossificationWaleed Fouad Mourad
Department of Radiation Oncology, University of Mississippi Medical Center, Jackson, MS, USA
Int J Radiat Oncol Biol Phys 82:e831-6. 2012..To analyze the impact of different body mass index (BMI) as a surrogate marker for heterotopic ossification (HO) in patients who underwent surgical repair (SR) for displaced acetabular fractures (DAF) followed by radiation therapy (RT)... - Head and neck cancer among lifelong never-smokers and ever-smokers: matched-pair analysis of outcomes after radiation therapyAllen M Chen
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA, USA
Am J Clin Oncol 34:270-5. 2011..The purpose of this analysis was to compare the clinical outcomes between patients without a history of smoking (never-smokers) and those with a previous history of smoking (ever-smokers) treated by radiation therapy... - Tobacco smoking during radiation therapy for head-and-neck cancer is associated with unfavorable outcomeAllen M Chen
Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA, USA
Int J Radiat Oncol Biol Phys 79:414-9. 2011..To evaluate the effect of continued cigarette smoking among patients undergoing radiation therapy for head-and-neck cancer by comparing the clinical outcomes among active smokers and quitters... - Initial clinical experience with helical tomotherapy for head and neck cancerAllen M Chen
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California 95817, USA
Head Neck 31:1571-8. 2009..To report a single-institutional experience with the use of helical tomotherapy (HT)-based intensity-modulated radiotherapy (IMRT) for head and neck cancer... - Improved dosimetric and clinical outcomes with intensity-modulated radiotherapy for head-and-neck cancer of unknown primary originAllen M Chen
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, CA 95817, USA
Int J Radiat Oncol Biol Phys 79:756-62. 2011.... - Comparison of intensity-modulated radiotherapy using helical tomotherapy and segmental multileaf collimator-based techniques for nasopharyngeal carcinoma: dosimetric analysis incorporating quality assurance guidelines from RTOG 0225Allen M Chen
Departments of Radiation Oncology, University of California Davis Cancer Center, 4501 X Street, Suite G140, Sacramento, CA, USA
Technol Cancer Res Treat 9:291-8. 2010..02), larynx (p = 0.03), and oral cavity (p = 0.03). These findings suggest that HT-IMRT may be of improve the therapeutic ratio in the radiotherapeutic treatment of nasopharyngeal carcinoma... - Marginal misses after postoperative intensity-modulated radiotherapy for head and neck cancerAllen M Chen
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California 95817, USA
Int J Radiat Oncol Biol Phys 80:1423-9. 2011..To describe the spatial distribution of local-regional recurrence (LRR) among patients treated postoperatively with intensity-modulated radiotherapy (IMRT) for head and neck cancer... - Clinical trials involving vitamin D analogs in prostate cancerSrinivasan Vijayakumar
Department of Radiation Oncology, University of California, Davis Medical Center, Sacramento, California 95817, USA
Cancer J 11:362-73. 2005..quot; Abstracts from recent international meetings were also reviewed but were only included when they were the only known reference to the clinical trial or the research mentioned. Only papers published in English were included... - Potential of helical tomotherapy to reduce dose to the ocular structures for patients treated for unresectable sinonasal cancerAllen M Chen
Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA, USA
Am J Clin Oncol 33:595-8. 2010..To compare intensity-modulated radiotherapy (IMRT) treatment plans generated by segmental multileaf collimator (SMLC) and helical tomotherapy (HT) techniques for patients with unresectable sinonasal cancer... - Late esophageal toxicity after radiation therapy for head and neck cancerAllen M Chen
Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, Sacramento, California 95817, USA
Head Neck 32:178-83. 2010..The aim of this study was to determine the incidence of esophageal toxicity after radiation therapy for head and neck cancer... - Development and validation of a standardized method for contouring the brachial plexus: preliminary dosimetric analysis among patients treated with IMRT for head-and-neck cancerWilliam H Hall
Department of Radiation Oncology, University of California, Davis, Cancer Center, Sacramento, CA, USA
Int J Radiat Oncol Biol Phys 72:1362-7. 2008.... - Prospective evaluation to establish a dose response for clinical oral mucositis in patients undergoing head-and-neck conformal radiotherapySamir Narayan
Department of Radiation Oncology, University of California Davis Medical Center, Sacramento, CA, USA
Int J Radiat Oncol Biol Phys 72:756-62. 2008..The main objective is to establish a quantitative dose response for clinical oral mucositis... - Primary radiation therapy for head-and-neck cancer in the setting of human immunodeficiency virusEmily A Klein
Department of Radiation Oncology, University of California Davis Cancer Center, Sacramento, CA, USA
Int J Radiat Oncol Biol Phys 79:60-4. 2011..To analyze outcomes after radiation therapy for head-and-neck cancer among a cohort of patients with human immunodeficiency virus (HIV)... - Misses and near-misses after postoperative radiation therapy for head and neck cancer: Comparison of IMRT and non-IMRT techniques in the CT-simulation eraAllen M Chen
Department of Radiation Oncology, Head and Neck Surgery, University of California Davis School of Medicine, Sacramento, CA 95817, USA
Head Neck 32:1452-9. 2010.... - Utility of megavoltage fan-beam CT for treatment planning in a head-and-neck cancer patient with extensive dental fillings undergoing helical tomotherapyClaus Yang
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, USA
Med Dosim 35:108-14. 2010..MV-FBCT may be useful in radiation treatment planning for nasopharyngeal cancer patients in the setting of extensive dental artifacts... - Introducing new technologies into the clinicSrinivasan Vijayakumar
Department of Radiation Oncology, University of California, Davis Cancer Center, Sacramento, CA 95417, USA
Front Radiat Ther Oncol 40:180-92. 2007..These concepts, applied in prostate cancer in this communication, have wider applications in other disease sites and in the introduction of technologies beyond intensity-modulated radiation therapy... - Palliative radiation therapy for head and neck cancer: toward an optimal fractionation schemeAllen M Chen
Department of Radiation Oncology, University of California Davis School of Medicine, Sacramento, California 95817, USA
Head Neck 30:1586-91. 2008..To analyze the efficacy of various fractionation schedules for the palliation of head and neck cancer with radiation therapy... - RTOG 94-06: is the addition of neoadjuvant hormonal therapy to dose-escalated 3D conformal radiation therapy for prostate cancer associated with treatment toxicity?Richard K Valicenti
Department of Radiation Oncology, Jefferson Medical College and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
Int J Radiat Oncol Biol Phys 57:614-20. 2003..This study determines the effect on toxicity of adding neoadjuvant hormonal therapy (NHT) to three-dimensional conformal radiation therapy (3D-CRT) in RTOG 94-06... - Lack of Cetuximab induced skin toxicity in a previously irradiated field: case report and review of the literatureMadhava R Kanakamedala
Department of Radiation Oncology, University of Mississippi Medical Center, 350 W Woodrow Wilson Drive 1600, Jackson, MS 39213, USA
Radiat Oncol 5:38. 2010..Mutation, amplification or dysregulation of the EGFR family leads to uncontrolled division and predisposes to cancer. Inhibiting the EGFR represents a form of targeted cancer therapy... - Designing a randomized phase I/II prostate cancer chemoprevention trial using 1alpha-hydroxy-24-ethyl-cholecalciferol, an analogue of vitamin D3S Packianathan
Department of Radiation Oncology, School of Medicine, University of California at Davis, One Shields Avenue, Davis, California, USA
Cancer J 10:357-67. 2004.... - Use of benchmark dose-volume histograms for selection of the optimal technique between three-dimensional conformal radiation therapy and intensity-modulated radiation therapy in prostate cancerChunhui Luo
Radiation Oncology, University of California Davis Medical Center, Sacramento, CA 95817, USA
Int J Radiat Oncol Biol Phys 66:1253-62. 2006..We use these standards as well as differences in individual cases to make decisions on whether patients may benefit from IMRT treatment rather than 3D-CRT... - A prolonged time interval between trauma and prophylactic radiation therapy significantly increases the risk of heterotopic ossificationWaleed F Mourad
Department of Radiation Oncology, University of Mississippi Medical Center, Jackson, MS, USA
Int J Radiat Oncol Biol Phys 82:e339-44. 2012..To ascertain whether the time from injury to prophylactic radiation therapy (RT) influences the rate of heterotopic ossification (HO) after operative treatment of displaced acetabular fractures... - Integration of novel therapeutics into combined modality therapy of locally advanced non-small cell lung cancerDavid Gandara
Department of Internal Medicine, Division of Hematology Oncology and Department of Radiation Oncology, UC Davis Cancer Center, University of California Davis Medical Center, 4501 X Street, Sacramento, CA 95817, USA
Clin Cancer Res 11:5057s-5062s. 2005..Here, we describe conceptual issues, preclinical rationale, and ongoing or planned clinical trials incorporating NTAs into current treatment paradigms for unresectable stage III NSCLC... - Prospective study of psychosocial distress among patients undergoing radiotherapy for head and neck cancerAllen M Chen
Department of Radiation Oncology, University of California, Davis, Cancer Center, Sacramento, CA, USA
Int J Radiat Oncol Biol Phys 73:187-93. 2009..To determine the prevalence of psychosocial distress among patients undergoing radiotherapy (RT) for head and neck cancer and to examine the association between depression and anxiety and demographic and medical variables... - A systematic and evidence-based approach to the management of vertebral metastasisRichard L S Jennelle
Department of Radiation Oncology, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
ISRN Surg 2011:719715. 2011..This paper provides a series of tools as well as guidance in selecting effective and evidence-based therapy individualized to the specific patient... - Impact of radioimmunoscintigraphy on definition of clinical target volume for radiotherapy after prostatectomyAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago Hospitals, 5758 S Maryland Avenue, MC 9006, Chicago, IL 60637, USA
J Nucl Med 45:238-46. 2004..The goal of this study was to evaluate the role of radioimmunoscintigraphy (RIS) directed against prostate-specific membrane antigen in modifying postprostatectomy prostate fossa clinical target volume (CTV) definition... - A critical review of variables affecting the accuracy and false-negative rate of sentinel node biopsy procedures in early breast cancerVani Vijayakumar
Nuclear Medicine Section, Department of Radiology, University of Texas Medical Branch, Galveston, Texas 77555 0793, USA
Nucl Med Commun 26:395-405. 2005..In this review, the factors that influence the success of different techniques are examined, and studies which have investigated false-negative rates and/or sentinel lymph node identification rates are summarized... - Influence of radioimmunoscintigraphy on postprostatectomy radiotherapy treatment decision makingAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago, Chicago, Illinois, USA
J Nucl Med 45:571-8. 2004..The aim of this study was to evaluate the role of radioimmunoscintigraphy (RIS) directed against prostate-specific membrane antigen (PSMA) in influencing postradical retropubic prostatectomy (RRP) radiotherapy (RT) decision making... - Genome-wide linkage of 77 families from the African American Hereditary Prostate Cancer study (AAHPC)Agnes B Baffoe Bonnie
Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
Prostate 67:22-31. 2007..The African American Hereditary Prostate Cancer (AAHPC) Study was designed to recruit families with early-onset disease fulfilling criteria of >or=4 affected... - Biological effective dose for comparison and combination of external beam and low-dose rate interstitial brachytherapy prostate cancer treatment plansAshesh B Jani
Department of Radiation and Cellular Oncology and Urology, University of Chicago Hospitals Chicago, IL USA
Med Dosim 29:42-8. 2004..The results of this analysis can assist physicians in quantitatively determining the best combination and weighting of radiation treatment modalities for individual patients... - The application of number needed to treat (NNT) to clinical problems in radiotherapyAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago, 5758 S Maryland Ave, MC 9006, Chicago, IL 60637, USA
Cancer Invest 22:262-70. 2004.... - Is there an association between multiple myeloma and prostate cancer?Johnny Kao
Department of Radiation and Cellular Oncology, University of Chicago, 5758 South Maryland Avenue, MC 9006, Chicago, IL 60637, USA
Med Hypotheses 63:226-31. 2004.... - Radioimmunoscintigraphy for postprostatectomy radiotherapy: analysis of toxicity and biochemical controlAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago, Illinois, USA
J Nucl Med 45:1315-22. 2004..Our goal was to evaluate the role of radioimmunoscintigraphy (RIS) directed against prostate-specific membrane antigen (PSMA) in influencing postprostatectomy radiotherapy (RT) toxicity and biochemical control... - A Phase I trial of TNFerade biologic in patients with soft tissue sarcoma in the extremitiesArno J Mundt
University of Chicago Medical Center, Chicago, Illinois, USA
Clin Cancer Res 10:5747-53. 2004..The objective of this study was to assess the tolerance of combining TNFerade and radiation therapy in patients with soft tissue sarcomas of the extremity... - Biological-effective versus conventional dose volume histograms correlated with late genitourinary and gastrointestinal toxicity after external beam radiotherapy for prostate cancer: a matched pair analysisAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago Hospitals, Chicago, USA
BMC Cancer 3:16. 2003.... - Analysis of influence of age on acute and chronic radiotherapy toxicity in treatment of prostate cancerAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago Hospitals, Chicago, Illinois 60637, USA
Urology 65:1157-62. 2005..Improved understanding of the influence of age on toxicity outcome after RT for prostate cancer can assist in treatment decision-making... - The management of painful bone metastases with an emphasis on radionuclide therapyDarren J Hillegonds
Lawrence Livermore National Laboratory, Center for Accelerator Mass, Spectrometry, Livermore, CA, USA
J Natl Med Assoc 99:785-94. 2007..This review provides an update on the management of painful bone metastases, with an emphasis on radionuclide therapy, and introduces oligometastases and quantitative imaging evaluations for clinical trials... - Knowledge of hereditary prostate cancer among high-risk African American menSally Weinrich
School of Nursing, Medical College of Georgia, Augusta, USA
Oncol Nurs Forum 34:854-60. 2007..To measure knowledge of hereditary prostate cancer in a group of high-risk African American men... - Association of HPC2/ELAC2 and RNASEL non-synonymous variants with prostate cancer risk in African American familial and sporadic casesChristiane M Robbins
Translational Genomics Research Institute, Division of Integrated Cancer Genomics, Phoenix, Arizona 85004, USA
Prostate 68:1790-7. 2008..The RNASEL and HPC2/ELAC2 genes have been implicated in hereditary prostate cancer. Further assessment of the role of these genes in sporadic prostate cancer in African American men (AAM) is warranted... - Impact of hormone therapy when combined with external beam radiotherapy for early-stage, intermediate-, or high-risk prostate cancerAshesh B Jani
Department of Radiation and Cellular Oncology, University of Chicago, IL, USA
Am J Clin Oncol 26:382-5. 2003..27.0%). Thus, biochemical failure decreased with the administration of hormone therapy in this group of patients with early stage, intermediate- or high-risk prostate cancer. This finding requires validation by ongoing randomized trials...