9 results on '"Toms Vengaloor Thomas"'
Search Results
2. Parkinson’s Syndrome After Cranial Radiotherapy: A Case Report
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Kati K Reddy, Mark D Anderson, Srinivasan Vijayakumar, and Toms Vengaloor Thomas
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General Engineering - Published
- 2022
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3. Stage Migration in Cervical Cancer Using the FIGO 2018 Staging System: A Retrospective Survival Analysis Using a Single-Institution Patient Cohort
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Mildred Ridgway, Mary R Nittala, Kati K. Reddy, Anu Abraham, Shivanthidevi Gandhi, William Robinson, Srinivasan Vijayakumar, Toms Vengaloor Thomas, and S. Packianathan
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Oncology ,Cervical cancer ,medicine.medical_specialty ,obstetrics ,cervical cancer ,business.industry ,gynecology ,General Engineering ,migration ,medicine.disease ,stage ,Stage migration ,figo ,Internal medicine ,Cohort ,Radiation Oncology ,medicine ,Obstetrics/Gynecology ,Single institution ,business ,Staging system ,Survival analysis - Abstract
Introduction The International Federation of Gynecology and Obstetrics (FIGO) changed the staging system for cervical cancer in 2018 and formally allowed cross-sectional imaging for staging purposes. Stage IB is now divided into three substages based on tumor size (IB1 < 2 cm, IB2 2-4 cm and IB3 > 4 cm). The presence of lymph nodes in the pelvis or para-aortic region will upstage the patient to stage IIIC. The purpose of this study was to evaluate the extent of stage migration using the FIGO 2018 staging system for cervical cancer and validate the new staging system by assessing the survival outcomes. Methods An Institutional Review Board-approved and Health Insurance Portability and Accountability Act-compliant retrospective analysis was performed on 158 patients from the cervical cancer database at the University of Mississippi Medical Center, USA. Patients had been treated between January 2010 and December 2018, and they were all staged according to the FIGO 2009 staging system previously. We collected data regarding tumor size, lymph node presence, and extent of metastatic disease in the pretreatment CT, positron emission tomography (PET), or MRI scans and restaged the patients using the FIGO 2018 system. The extent of stage migration was evaluated using the new staging system. We analyzed the three-year overall survival (OS) using both FIGO 2009 and 2018 staging systems for validation purposes. Kaplan-Meier analyses were performed using SPSS version 24. Results Fifty-nine percent of the patients were upstaged when they were restaged using the FIGO 2018 staging system. In the current 2018 staging system, Stage IB3 accounted for 4%, and Stage IIIC accounted for 48% of the patient cohort, while other stages accounted for the rest. The median overall survival of the entire cohort was 20.5 months. There was a change in the survival curves using FIGO 2018 stages compared to those of FIGO 2009. There was a numerical improvement in three-year OS in stages IB and III among the two staging systems; however, it was not statistically significant. Interestingly, the three-year overall survival of Stage IIIC patients was better when compared to Stages III A& B combined (61% vs. 25%, p=0.017). Conclusion The increased availability of cross-sectional imaging across the world has led to recent changes in the FIGO staging system for cervical cancer, which allowed imaging in staging. We identified a significant stage migration in our patient cohort with the FIGO 2018 staging system, but no difference in the three-year overall survival was observed. Local tumor extent may be a worse prognostic indicator than nodal metastasis among stage III patients.
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- 2021
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4. Predictors of Extracapsular Extension in Patients With Squamous Cell Carcinoma of the Head and Neck and Outcome Analysis
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Eldrin Bhanat, Rahul Bhandari, Ashley Albert, S.P. Giri, Toms Vengaloor Thomas, Anu Abraham, Eswar K. Mundra, Srinivasan Vijayakumar, and Madhava R Kanakamedala
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medicine.medical_specialty ,Necrosis ,predicting ece ,medicine.medical_treatment ,outcomes ,necrosis ,Pathology ,Medicine ,In patient ,extracapsular extension ,Head and neck ,Chemotherapy ,business.industry ,Incidence (epidemiology) ,lymph node necrosis ,Head and neck cancer ,General Engineering ,medicine.disease ,Radiation therapy ,Oncology ,Radiation Oncology ,head and neck cancer ,Radiology ,Lymph ,medicine.symptom ,business - Abstract
Introduction Extracapsular extension (ECE) in the lymph nodes for patients with head and neck cancer has been found to be a poor prognostic factor in multiple studies. The purpose of the study is to evaluate the predictive factors for ECE on computer tomography (CT) imaging for patients undergoing surgery and to analyze outcomes. Methods We conducted an Institutional Review Board-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant retrospective review of 82 patients with biopsy-proven squamous cell carcinomas of the head and neck who underwent definitive surgery without neoadjuvant chemotherapy or radiation therapy. CT scans were evaluated for the level of involvement, size, and presence or absence of central necrosis. Extracapsular extension in lymph nodes on the postoperative pathology was correlated with the central necrosis in the lymph nodes appreciated on the CT neck with contrast. Survival estimates were evaluated using the Kaplan-Meier test. Results ECE on postoperative pathology was seen in 74.07% of patients who had evidence of central necrosis in lymph nodes on preoperative CT neck compared to 46.43% without CT necrosis (p=0.013). The incidence of ECE is higher in poorly differentiated tumors and also nodal stages >N2c at presentation. Patents with ECE had inferior disease-free and overall survival (OS). Conclusions Our results reveal that patients with necrosis on CT and with moderately to poorly differentiated tumors have a high incidence of extracapsular extension. There was no difference in local control (LC) between the groups of patients, but the OS was inferior in patients with ECE. Predicting extracapsular extension upfront helps to formulate the appropriate treatment. We propose to study additional chemotherapy to improve outcomes in patients with positive extracapsular extension.
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- 2021
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5. Factors Affecting Outcomes in Patients With Stage III & IV Squamous Cell Carcinoma of Oropharynx: The Importance of p16 Status, BMI, and Race
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Eldrin Bhanat, Srinivasan Vijayakumar, Toms Vengaloor Thomas, William C. Woods, Mary R Nittala, Madhava R Kanakamedala, and Eswar K. Mundra
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medicine.medical_specialty ,Multivariate analysis ,hpv/p16 ,030204 cardiovascular system & hematology ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,In patient ,Stage (cooking) ,Univariate analysis ,Cetuximab ,Proportional hazards model ,business.industry ,General Engineering ,oropharyngeal carcinoma ,Oropharyngeal Carcinoma ,Epidemiology/Public Health ,racial disparities ,Radiation Oncology ,Public Health ,business ,Body mass index ,030217 neurology & neurosurgery ,medicine.drug - Abstract
Objective To identify racial disparities in survival outcomes among Stage III & IV patients with squamous cell carcinomas (SCCa) of the oropharynx treated with definitive radiation therapy (RT), with concurrent chemotherapy. Method This is a retrospective analysis of patients with stage III & IV SCCa of oropharynx treated with definitive RT at the State Academic Medical Center. All patients were treated to 70 Gy utilizing intensity-modulated radiation treatment (IMRT), and received concurrent chemotherapy with weekly cisplatin or cetuximab. Chi-square test was used to test the goodness of fit, overall survival (OS), and locoregional control (LRC) comparing races were generated by using Log-rank test & Kaplan-Meier method. The covariables associated with the OS and LRC were determined by the Cox regression model. A p-value of less than 0.05 was considered statistically significant. The SPSS 24.0 software (IBM Corp., Armonk, NY) was used. Results In the total 73 eligible patients, 54.8% were black, and 45.2% white patients. Stage distribution (per American Joint Committee on Cancer-AJCC 8th Ed) between black patients vs. white patients, Stage III (45.5% vs. 54.5%) and for Stage IV (56.5% vs. 43.5%); p=0.499. Median follow-up for the entire group was 41 months (range: 4-144 months). In the univariate analysis, variables p16 status, body mass index (BMI), alcohol history and tumor subsite were found to be significant. In the multivariate analysis, only BMI has shown to be significant. Three-year LRC for black patients was 37.8% vs.66.8% in white patients (p=0.354) and three-year OS for black patients was 51.8% vs. 80.9% for white patients (p=0.063), respectively. Five-year OS for p16 positive patients was 69.7% vs. 43% for p16 negative patients (p=0.034). Five-year OS for Stage IV black patients was 34% vs. 69.5% for Stage IV white patients (p=0.014). Conclusion Among all the co-variables examined, only BMI has shown affecting the OS outcomes; gender and BMI shown to be affecting the LRC. Racial factor appears to be significant in Stage IV patients.
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- 2021
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6. An Analysis of the Racial Disparities Among Cervical Cancer Patients Treated at an Academic Medical Center in the Southeastern United States
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Anu Abraham, Eldrin Bhanat, Srinivasan Vijayakumar, S. Packianathan, Kati Krishna, Toms Vengaloor Thomas, Shivanthidevi Gandhi, Mildred Ridgway, and William Robinson
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medicine.medical_specialty ,cervical cancer ,gynae oncology ,Disease ,030204 cardiovascular system & hematology ,gynaecology and obstetrics ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Radiation oncology ,Carcinoma ,medicine ,cancer ,Stage (cooking) ,Cervix ,disparities ,Cervical cancer ,cervical oncology ,business.industry ,General Engineering ,Cancer ,medicine.disease ,radiation ,medicine.anatomical_structure ,Oncology ,racial disparities ,Cohort ,Radiation Oncology ,Public Health ,business ,030217 neurology & neurosurgery - Abstract
Objective The purpose of this study was to identify racial disparities in treatment outcomes, if any, among patients with carcinoma of the cervix treated at a tertiary care institution in the state of Mississippi. Methods A retrospective review of patients with carcinoma of the cervix treated in the Department of Radiation Oncology at our institution between 2010 and 2018 was performed. Data regarding demographics, disease stage, treatments administered, and follow-up were collected. Patient outcomes, including median survival and overall survival, were analyzed using the Kaplan-Meier method. All analyses were performed using SPSS Statistics version 24 (IBM, Armonk, NY). Results Between January 2010 and December 2018, a total of 165 patients with carcinoma of the cervix were treated at our institution. We had a significantly higher proportion of African American (AA) compared to Caucasian American (CA) patients (59.4 vs. 36.4%; p=0.03). There was a significant difference in the disease stage at the time of presentation between AA and CA in that compared to AA women, a higher number of CA patients presented with locally advanced disease [Federation of Gynecology and Obstetrics (FIGO) stages IB2 to IVA] (78.6 vs. 86.7%; p
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- 2021
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7. A 25-year Experience at an Academic Medical Center in the United States: Are There Racial Disparities in the Prognosis of Patients Diagnosed With Hypopharyngeal Carcinoma?
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Eswar K. Mundra, S. Packianathan, Eldrin Bhanat, Hiba Z Ahmed, Srinivasan Vijayakumar, Toms Vengaloor Thomas, Anu Abraham, Kati Krishna, and Mary R Nittala
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medicine.medical_specialty ,business.industry ,General Engineering ,Hypopharyngeal cancer ,Disease ,030204 cardiovascular system & hematology ,medicine.disease ,Institutional review board ,Tertiary care ,Hypopharyngeal Carcinoma ,03 medical and health sciences ,0302 clinical medicine ,Oncology ,Internal medicine ,Cohort ,racial disparities ,Health insurance ,Radiation Oncology ,Medicine ,hypopharyngeal carcinoma ,Public Health ,Stage (cooking) ,business ,030217 neurology & neurosurgery - Abstract
Introduction This study attempted to identify disparities in outcomes between African American (AA) and Caucasian American (CA) patients treated for hypopharyngeal carcinoma at a tertiary care institution over the past 25 years. Methods An institutional review board (IRB)-approved and Health Insurance Portability and Accountability Act (HIPPA)-compliant retrospective analysis was performed on patients with squamous cell carcinoma of the hypopharynx treated at our institution between January 1994 and December 2018. Data regarding demographics, stage, treatment, and follow-up were collected. Outcomes, including median survival and overall survival, were calculated using the Kaplan-Meier method. All analyses were performed using the Social Packages for the Social Sciences (SPSS) v. 24 (IBM Corp., Armonk, NY). Results We identified 144 hypopharyngeal carcinoma patients who were treated during this period. Our patient cohort consisted of 61.8% AA and 35.4% CA (P=0.538). Overall, 96% of them presented at an advanced stage (Stages III & IV) of the disease, and only 4% presented in the early stages (Stages I & II). There was no significant difference between AA and CA patients who presented with advanced disease (96.6% vs. 94.1%). In our patient cohort, 15.3% of patients did not receive any therapy; however, 51.4%, 22.9%, and 10.4% of them underwent definitive chemoradiotherapy, definitive surgery, or palliative chemotherapy, respectively. There were no significant differences in patient racial proportions within each treatment group. The median follow-up of the entire cohort was 13 months. There was no significant difference between the median survival of AA and that of CA patients (16 months vs. 15 months; p=0.917). Moreover, there was no significant difference in the overall survival between AA and CA patients at three years (27.2% vs. 36.3%; p=0.917) and five years (20.4 % vs. 16.7 %; p=0.917). Conclusions A retrospective review of patients with hypopharyngeal cancer treated at our institution over the previous 25 years did not identify significant racial disparities regarding the stage at presentation or prognosis. This study suggests that when patients have equal access to care, they appear to have a similar prognosis despite racial differences. Further studies are needed to validate this hypothesis.
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- 2020
8. Small Cell Carcinoma of the Prostate: A Case Report and Review of the Literature
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Toms Vengaloor Thomas, S.P. Giri, Pallatikurthi P Kumar, Celeste Cook-Glenn, and Rahul Bhandari
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Oncology ,medicine.medical_specialty ,Chemotherapy ,business.industry ,medicine.medical_treatment ,Urology ,General Engineering ,neuroendocrine carcinoma of prostate ,Disease ,medicine.disease ,Malignancy ,prostate cancer ,Small-cell carcinoma ,Locally Extensive ,Prostate cancer ,medicine.anatomical_structure ,Prostate ,Internal medicine ,medicine ,Radiation Oncology ,Adenocarcinoma ,business ,small cell carcinoma of the prostate - Abstract
Small cell carcinoma of the prostate (SCCP) is a rare malignancy that is considered a lethal entity of prostate cancer. Once it is diagnosed, patients characteristically experience an aggressive clinical course with poor overall survival rates, which unfortunately still holds even with modern treatments. In this report, we discuss the case of a 63-year-old African American male who initially presented to the hospital with an elevated prostate-specific antigen (PSA) level of 9.41 ng/mL and was found to have locally extensive SCCP. After one cycle of chemotherapy, the patient's symptoms worsened, and his disease continued to progress with an increased metastatic burden. In a matter of just a few months, the patient's disease progressed from a locally advanced entity to a diffusely metastatic one, showcasing the true aggressive nature of this disease. Through an extensive literature review, this case report also sheds further light on SCCP's histological characteristics, its apparent differences from adenocarcinoma of the prostate, and its aggressive nature even through treatment.
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- 2020
9. Management of Advanced-stage Hypopharyngeal Carcinoma: 25-Year Experience from a Tertiary Care Medical Center
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Eldrin Bhanat, Toms Vengaloor Thomas, Mary R Nittala, Ashley Albert, and Srinivasan Vijayakumar
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medicine.medical_specialty ,advanced-stage head and neck cancer ,030204 cardiovascular system & hematology ,chemoradiation for hypopharyngeal cancer ,Tertiary care ,Hypopharyngeal Carcinoma ,03 medical and health sciences ,Otolaryngology ,0302 clinical medicine ,Internal medicine ,medicine ,Stage (cooking) ,business.industry ,Advanced stage ,General Engineering ,Hypopharyngeal cancer ,medicine.disease ,Institutional review board ,laryngeal preservation ,Oncology ,definitive chemoradiation ,Cohort ,Radiation Oncology ,hypopharyngeal carcinoma ,definitive surgery ,business ,030217 neurology & neurosurgery ,Chemoradiotherapy ,retrospective review - Abstract
Introduction Due to conflicting data in the literature, there is a continuing debate on whether advanced hypopharyngeal carcinoma patients should be treated with definitive surgery or chemoradiotherapy. The purpose of this study is to evaluate the management and outcomes of advanced hypopharyngeal carcinoma in a tertiary care institution over the last 25 years. Methods An Institutional Review Board (IRB)-approved and HIPPA-compliant retrospective analysis was performed of patients with advanced-stage squamous cell carcinoma of the hypopharynx treated at our institution between January 1994 and December 2018. Data regarding demographics, stage, treatment, and follow-up were collected. Outcomes including median survival and overall survival were calculated using the Kaplan Meier method. All analyses were performed using SPSS v. 24. Results This study included a total of 103 advanced stage hypopharyngeal cancer patients. The median age for this cohort is 61 years (range: 41-88, SD 9.3). Of the total 103 eligible patients treated, 92 (89.3%) were male and 11 (10.7%) female; 61 (59.2%) were African Americans, 39 (37.9%) were Caucasians and three (2.9%) were other races. Seventeen patients (16.5%) had stage III disease, whereas 86 (83.5%) patients were diagnosed with Stage IV A or B disease. Seventy-two patients (69.9%) were treated with definitive chemoradiotherapy (ChemoRT group), and 31 patients (30.1%) underwent primary surgery with or without adjuvant treatments (Surgery group). The two treatment groups were similar in terms of age, gender, ethnicity, alcohol status, N staging, and subsites but were significantly different for smoking status (p = 0.035) and T staging (p = 0.024). The median follow-up was 17 months. The median survival of the overall cohort was 26 months, and five-year overall survival was 25.5%. The median survival was found to be significantly better for the surgery group as compared to the definitive chemoradiotherapy group (43 months vs 16 months, p = 0.049). The five-year overall survival (OS; 41.5% vs 18.5%, p = 0.049) and disease-free survival (DFS; 75.3% vs 56%; p = 0.029) were significantly better for patients in the surgery group compared to the chemoradiotherapy group. On multivariate Cox-regression analysis, lymph nodal status (HR = 1.27, CI: 1.00-1.62, p = 0.047) and chemoradiation treatment (HR = 1.82, CI: 1.00-3.29, p = 0.048) were associated with higher risk of mortality. Conclusion In our single institutional experience of advanced hypopharyngeal carcinoma management, the five-year overall survival rate was found to be 25.5 % and was the poorest among head and neck cancers. The patients with advanced hypopharyngeal cancer treated with surgery followed by adjuvant radiation or chemoradiation have significantly improved overall survival compared to those treated with definitive chemoradiotherapy. Further research warranted for early detection and better treatment to improve the cure rate in hypopharyngeal carcinoma patients.
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- 2020
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