There are ample opportunities for high impact resident research at Kaiser Permanente. Residents have access to an extensive tumor registry through our large integrated health care system. Each year, there are multiple projects accepted for oral and poster presentations at ASTRO and manuscripts accepted for peer-reviewed publication. Multiple resident-led projects have been selected as “Best of ASTRO” and “ASTRO Science Highlights”. Recent resident presentations and publications are below: 

RECENT RESIDENT PEER-REVIEWED PUBLICATIONS

Bhattasali, O., Torres, F. A., Kang, H. K., Thompson, L., Abdalla, I. A., McNicoll, M. P., Lin, A., Ryoo, J. J., Chen, J., & Iganej, S. (2021). Prognostic impact of retropharyngeal lymphadenopathy in early-stage HPV-associated oropharyngeal cancer: Implications for staging optimization. Oral oncology, 114, 105147. https://doi.org/10.1016/j.oraloncology.2020.105147

Beard, B. W., Rettig, R. L., Ryoo, J. J., Parker, R. A., McLemore, E. C., & Attaluri, V. (2020). Watch-and-Wait Compared to Operation for Patients with Complete Response to Neoadjuvant Therapy for Rectal Cancer. Journal of the American College of Surgeons, 231(6), 681–692. https://doi.org/10.1016/j.jamcollsurg.2020.08.775

Frager, M. J., Glazener, E. M., Rahimian, J., Zhi, M., Lodin, K., Feng, L., Chen, J., & Girvigian, M. R. (2020). A comparative outcomes analysis of patients treated for arteriovenous malformation with LINAC-based stereotactic radiosurgery by a standard frame-based technique or a frameless technique utilizing 3-dimensional rotational angiography. Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia, 77, 185–190. https://doi.org/10.1016/j.jocn.2020.04.102

Glazener, E. M., Lodin, K., Miller, M. J., Frager, M. J., Rahimian, J., Chen, J., & Girvigian, M. R. (2020). Pediatric Intracranial Arteriovenous Malformation: Long-Term Outcomes with Linear Accelerator (LINAC)-Based Radiosurgery. Advances in radiation oncology, 5(5), 850–855. https://doi.org/10.1016/j.adro.2020.03.018

Goy, B. W., Burchette, R., Soper, M. S., Chang, T., & Cosmatos, H. A. (2020). Ten-Year Treatment Outcomes of Radical Prostatectomy Vs External Beam Radiation Therapy Vs Brachytherapy for 1503 Patients With Intermediate-risk Prostate Cancer. Urology, 136, 180–189. https://doi.org/10.1016/j.urology.2019.09.040

Thompson, L., Burchette, R., Iganej, S., & Bhattasali, O. (2020). Oropharyngeal Squamous Cell Carcinoma in 390 Patients: Analysis of Clinical and Histological Criteria Which Significantly Impact Outcome. Head and neck pathology, 14(3), 666–688. https://doi.org/10.1007/s12105-019-01096-0

Bhattasali, O., Thompson, L., Schumacher, A. J., & Iganej, S. (2019). Radiographic nodal prognostic factors in stage I HPV-related oropharyngeal squamous cell carcinoma. Head & neck, 41(2), 398–402. https://doi.org/10.1002/hed.25504

Bhattasali, O., Ryoo, J. J., Thompson, L., Abdalla, I. A., Chen, J., & Iganej, S. (2019). Impact of chemotherapy regimen on treatment outcomes in patients with HPV-associated oropharyngeal cancer with T4 disease treated with definitive concurrent chemoradiation. Oral oncology, 95, 74–78. https://doi.org/10.1016/j.oraloncology.2019.06.007

Bhattasali, O., Thompson, L., Schumacher, A. J., & Iganej, S. (2019). Radiographic nodal prognostic factors in stage I HPV-related oropharyngeal squamous cell carcinoma. Head & neck, 41(2), 398–402. https://doi.org/10.1002/hed.25504

Iganej, S., Beard, B. W., Chen, J., Buchschacher, G. L., Jr, Abdalla, I. A., Thompson, L., & Bhattasali, O. (2019). Triweekly carboplatin as a potential de-intensification agent in concurrent chemoradiation for early-stage HPV-associated oropharyngeal cancer. Oral oncology, 97, 18–22. https://doi.org/10.1016/j.oraloncology.2019.07.016

Robin, T. P., Grover, S., Reddy Palkonda, V. A., Fisher, C. M., Gehl, B., Bhattacharya, K., Mallick, I., Bhattasali, O., Viswanathan, A. N., Sastri Chopra, S., Mahantshetty, U., & Hardenbergh, P. H. (2019). Utilization of a Web-Based Conferencing Platform to Improve Global Radiation Oncology Education and Quality-Proof of Principle Through Implementation in India. International journal of radiation oncology, biology, physics, 103(1), 276–280. https://doi.org/10.1016/j.ijrobp.2018.07.2003

Safavy, S., Jabaji, R. B., Lu, S. M., Slezak, J. M., Cosmatos, H. A., Williams, S. G., & Finley, D. S. (2019). Salvage Cryoablation for Radiorecurrent Prostate Cancer: Initial Experience at a Regional Health Care System. The Permanente journal, 23, 18-153. https://doi.org/10.7812/TPP/18-153

Zhi, M., Girvigian, M. R., Miller, M. J., Chen, J. C., Schumacher, A. J., Rahimian, J., & Lodin, K. (2019). Long-Term Outcomes of Newly Diagnosed Resected Atypical Meningiomas and the Role of Adjuvant Radiotherapy. World neurosurgery, 122, e1153–e1161. https://doi.org/10.1016/j.wneu.2018.11.006

Bhattasali, O., Thompson, L.D.R., Abdalla, A., Chen, J., & Iganej, S. (2018). Comparison of high-dose Cisplatin-based chemoradiotherapy and Cetuximab-based bioradiotherapy for p16-positive oropharyngeal squamous cell carcinoma in the context of revised HPV-based staging. Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology, 23(5), 451–457. https://doi.org/10.1016/j.rpor.2018.08.007

Bhattasali, O., Han, J., Thompson, L., Buchschacher, G. L., Jr, Abdalla, I. A., & Iganej, S. (2018). Induction chemotherapy followed by concurrent chemoradiation versus concurrent chemoradiation alone in the definitive management of p16-positive oropharyngeal squamous cell carcinoma with low-neck or N3 disease. Oral oncology, 78, 151–155. https://doi.org/10.1016/j.oraloncology.2018.01.031

Chang-Halpenny, C. N., Natarajan, S., & Hwang-Graziano, J. M. (2018). Early-stage Uterine Pure and Mixed Clear Cell Carcinoma: Outcomes and Recurrence With and Without Adjuvant Therapy. American journal of clinical oncology, 41(4), 371–378. https://doi.org/10.1097/COC.0000000000000277

Lu, S. M., Iganej, S., Abdalla, I. A., & Buchschacher, G. L. (2018). Concurrent Radiotherapy and Triweekly Carboplatin for the Definitive Treatment of Locally Advanced Laryngeal Carcinoma. American journal of clinical oncology, 41(6), 595–600. https://doi.org/10.1097/COC.0000000000000330

Lu, S. M., & Lien, W. W. (2018). Concurrent Radiotherapy With Cetuximab or Platinum-based Chemotherapy for Locally Advanced Cutaneous Squamous Cell Carcinoma of the Head and Neck. American journal of clinical oncology, 41(1), 95–99. https://doi.org/10.1097/COC.0000000000000228

Ryoo, J. J., Batech, M., Zheng, C., Kim, R. W., Gould, M. K., Kagan, A. R., & Lien, W. W. (2017). Radiotherapy for brain metastases near the end of life in an integrated health care system. Annals of palliative medicine, 6(Suppl 1), S28–S38. https://doi.org/10.21037/apm.2017.03.04

White, E. C., Khodayari, B., Erickson, K. T., Lien, W. W., Hwang-Graziano, J., & Rao, A. R. (2017). Comparison of Toxicity and Treatment Outcomes in HIV-positive Versus HIV-negative Patients With Squamous Cell Carcinoma of the Anal Canal. American journal of clinical oncology, 40(4), 386–392. https://doi.org/10.1097/COC.0000000000000172

 

RECENT RESIDENT PRESENTATIONS FROM NATIONAL AND INTERNATIONAL MEETINGS

Beard, B., Bhattasali, O., Iganej, S. (2020, February 27). Which Patients Benefits from Prophylactic Gastrostomy Tube in p16-positive Oropharyngeal Squamous Cell Carcinoma Treated with Concurrent Chemoradiation with High-Dose Cisplatin? [Poster Presentation]. 2020 Multidisciplinary Head and Neck Cancers Symposium, Scottsdale, AZ, United States.

Beard, B., Rettig, R., Ryoo, J., Parker, R., Wang, R., McLemore, L., Attaluri, V. (2020, October 25-28). Nonoperative management versus surgery in patients with complete endoscopic response to neoadjuvant therapy for rectal cancer [Oral Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Bhattasali, O. Beard, B., Iganej, S., Thompson, L. (2020, October 25-28). Outcomes of NRG-HN002 eligible patients with favorable-risk HPV-associated oropharyngeal carcinoma treated with definitive chemoradiation with tri-weekly carboplatin [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Frager, M., Glazener, E., Rahimian, J., Girvigian, M., Lodin, K., Zhi, M., Feng, L., Chen, J. (2020, October 25-28). An Outcomes Comparison of Patients Treated for Arteriovenous Malformation with LINAC-Based Stereotactic Radiosurgery by a Standard Frame-based Technique or a Frameless Technique Utilizing 3-Dimensional Rotational Angiography [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Glazener, E., Lodin, K., Miller, M. J., Rahimian, J., Frager, M., Girvigian, M., Chen, J. (2020, October 25-28). Long-Term Outcomes of Hypofractionated Stereotactic Radiotherapy for Treatment of Arteriovenous Malformation [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Ikizler, H. Frager, M., Ryoo, J. (2020, October 25-28). Recurrence After Surgery for Stage II endometrial Cancer Leads to Limited Survival: Practice Patterns and Outcomes of Adjuvant Treatment in an Integrated Healthcare System [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Waxer, J., Bhattasali, O., Iganej, S. (2020, October 25-28). The CROSS Regimen vs a Dose-Escalated Approach to Preoperative Chemoradiation for Locally Advanced Adenocarcinoma of the Esophagus–An Integrated Healthcare Systems Retrospective Analyses [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Waxer, J., Wang, K., Olch, A.J., Modiri, A., Charpentier, A. M., Sprow, G., MacDonald, S., Bentzen, S. M., Constine, L. S. (2020, October 25-28). Radiotherapy-Induced Cerbrovascular Events Among Survivors of Childhood and Adolescent Cancer of the Central Nervous System: A PENTEC Modeling Study [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Waxer, J., Rahimian, J., Alfaro, A., Kim, F. S. H., Kim, D. W. (2020, October 25-28). Lung Stereotactic Body Radiation Using Deep Inspiratory Breath Hold: A Dosimetric Evaluation of Targeting and Safety [Poster Presentation]. ASTRO 2020 Annual Meeting, Virtual Format.

Beard, B., Bhattasali, O., Iganej, S. (2019, September 15-18). A Comparison of toxicity outcomes of definitive chemoradiation with triweekly cisplatin versus triweekly carboplatin in p16-positive oropharyngeal squamous cell carcinoma: a potential opportunity for de-intensification. [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Beard, B., Schumacher, A., Rao, A. (2019, September 15-18). Watchful Waiting after Clinical Complete Response to Neoadjuvant Chemoradiation for Rectal Cancer [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Beard B., Rahimian, J. (2019, September 15-18). A Dosimetric Comparison of Preoperative Versus Postoperative Stereotactic Radiosurgery for Brain Metastases [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Bhattasali, O., Ryoo, J., Iganej, S. (2019, September 15-18). Prognostic impact of retropharyngeal lymphadenopathy in HPV-associated oropharyngeal squamous cell carcinoma treated with definitive chemoradiation.  [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Frager, M., Glazener, E., Rahimian, J., Miller, M. J., Girvigian, M., Lodin, M., Zhi, M., Feng, L., Chen, J. (2019, September 15-18). An Outcomes-based Analysis of Patients Treated for Arteriovenous Malformation by Frameless LINAC-based Stereotactic Radiosurgery Using 3-Dimensional Rotational Angiography [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Frager, M., Cnossen, N., Shin, S. (2019, September 15-18). Comparing Radiotherapy Versus Surgery in Men with High-Risk Prostate Cancer: An Outcomes-based Analysis [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Glazener, E., Frager, M., Rahimian, J., Miller, M. J., Girvigian, M., Lodin, M., Chen, J. (2019, September 15-18). Long-Term Outcomes for Arteriovenous Malformations treated with LINAC-based Stereotactic Radiosurgery in the Pediatric Population [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Goy, B., Soper, M., Cosmatos, H., Burchette, R., Chang, T.  (2019, February). Ten Year Treatment Complication Outcomes of Radical Prostatectomy vs External Beam Radiation Therapy vs Brachytherapy for 1,503 Patients with Intermediate Risk Prostrate Cancer [Poster Presentation]. 2019 ASCO Genitourinary Cancers Symposium, San Francisco, CA, United States.

Jiang, D., Girvigian, M., Rahimian, J. (2019, September 15-18). Radiosurgery Ablation of Medial Branch Nerves of the Lumbar Spine for Facetogenic Back Pain – a Dosimetric Evaluation of Targeting and Safety [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Rahimian, J., Jiang, D., Girvigian, M., Wang, R. Stereotactic ablative radiosurgery (SABR) of dorsal sacral lateral nerve branches for treatment of sacroiliac pain – A dosimetric feasibility study exploring the role of noninvasive SABR in place of bipolar radiofrequency ablation [Poster Presentation]. ASTRO 2019 Annual Meeting, Chicago, IL, United States.

Beard B., Bhattasali, O., Cnossen, N., Chen, J., Iganej, S. (2018, October 21-24). The Impact of Subclinical Regional Metastases on the Outcomes of Patients with Hand and Neck Adenoid Cystic Carcinoma [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Bhattasali, O., Iganej, S. (2018, March). Overt radiographic extranodal extension predicts a poorer survival in p16+ oropharyngeal squamous cell carcinoma [Poster Presentation]. United States and Canadian Academy of Pathology 2018 Annual Meeting, Vancouver, BC, Canada.

Bhattasali, O., Iganej, S. (2018, October 21-24). Predictors of distant failure in locally advanced p16-positive oropharyngeal squamous cell carcinoma [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Bhattasali, O., Ryoo, J., Chen, J., Iganej, S. (2018, October 21-24). Impact of chemotherapy regimen on treatment outcomes in patients with HPV-associated oropharyngeal squamous cell carcinoma with T4 disease [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Cnossen, N., Frager, M., Shin, S. (2018, October 21-24). A Multi-Institutional Study Evaluating Pre-Operative Characteristics and Pathologic Findings Following Radical Prostatectomy in Early-Onset High-Risk Prostate Cancer [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Cnossen, N., Jiang, D., Girvigian, M., Rahimian, J. (2018, October 21-24). Radiosurgical Pulmonary Vein Isolation for the treatment of Atrial Fibrillation: A Dosimetric Optimization and Dynamic Phantom Study [Oral Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Frager, M., Cnossen, N., Shin, S. (2018, October 21-24). Clinical Outcomes of Radical Prostatectomy Versus Combined External Beam Radiotherapy and Androgen Deprivation Therapy in Elderly Men with High-Risk Prostate Cancer: A Multi-Institutional Analysis [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Iganej, S., Bhattasali, O., Chen, J. (2018, December). Comparison of Cetuximab-based bioradiotherapy versus high-dose Cisplatin-based chemoradiotherapy for p16-positive oropharyngeal squamous cell carcinoma in the context of revised HPV-based staging [Oral Presentation]. EUROGIN 2018 International Multidisciplinary HPV Congress, Lisbon, Portugal.

Jiang D., Chen, J. (2018, October 21-24). Long-Term Subsequent Breast Cancer Risk and Overall Survival in Older Women with Estrogen Receptor Positive Early Stage Breast Cancer Treated in a Community Health Plan [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Khodayari, B., Lien, W. (2018, October 21-24). Clinical Outcomes for Primary Parenchymal Tumor of Intermediate Differentiation [Poster Presentation]. ASTRO 2018 Annual Meeting, San Antonio, TX, United States.

Rahimian, J., Jiang, D. (2018, September 19-20). A Dosimetric Comparative Study of LINACs with 2.5mm and 5mm MLCs Treatment Delivery Systems to Treat Multiple Brain Metastases with a Single Isocenter [Conference Presentation]. 8th Novalis Circle Conference, Munich, Germany.

Thompson, L. D., Bhattasali, O., Iganej, S. (2018, March). Histologically significant features in 390 oropharyngeal squamous cell carcinomas [Poster Presentation]. United States and Canadian Academy of Pathology 2018 Annual Meeting, Vancouver, BC, Canada.

Thompson, L. D., Bhattasali, O., Iganej, S. (2018, March). Low neck disease predicts a worse prognosis in oropharyngeal squamous cell carcinoma: An analysis of 390 patients [Poster Presentation]. United States and Canadian Academy of Pathology 2018 Annual Meeting, Vancouver, BC, Canada.

Zhi, M., Iganej, S. (2018, February). Outcomes of Stage I-II Squamous Cell Carcinoma of the Oral Tongue (OTSCC) Managed with Surgery Including an Elective Nodal Dissection: Potential Indications for Postoperative Radiation Therapy (PORT) [Conference Presentation]. Multidisciplinary Head and Neck Cancers Symposium, Scottsdale, AZ, United States.

Bhattasali, O., Schumacher, A., Iganej, S. (2017, September 24-27). Nodal Radiographic Prognostic Factors in the New Stage I p16-positive Oropharyngeal Cancer of the AJCC 8th Edition: Is all N1 Disease the Same? [Oral Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Bhattasali, O., Iganej, S. (2017, September 24-27). Induction Chemotherapy Followed by Concurrent Chemoradiation versus Concurrent Chemoradiation Alone in the Definitive Management of p16-positive Oropharyngeal Cancer with Low-neck or N3 Disease [Oral Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Cnossen, N., Schumacher, A., Cosmatos, H. (2017, September 24-27). A Predictive Model for Post-Operative Margin Status in Localized Prostate Cancer [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Khodayari, B., Girvigian, M. (2017, March 11). Reassessing the Treatment Paradigm for Early Stage Non-Small-Cell Lung Cancers treated with Stereotactic Body Radiation Therapy – Clinical Outcomes and Patterns of Recurrence [Conference Presentation]. 2017 American College of Radiation Oncology, Orlando, FL, United States.

Khodayari, B., Rahimian, J. Girvigian, M. (2017, September 24-27). Cardiac Maximum Point Dose Predicts for Patient Survival in Early Stage Non-Small Cell Lung Cancer (NSCLC) Patients Treated with Stereotactic Body Radiation Therapy (SBRT) [ePoster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Khodayari, B., Rao, A., Lodin, K. (2017, September 24-27). Outcomes for Oligometastatic Rectal Adenocarcinoma Patients Treated With and Without Induction Chemotherapy followed by Local Consolidative Therapy [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Khodayari, B., Rahimian, J. Girvigian, M. (2017, September 24-27). Metachronous vs Synchronous vs Single Tumor Non-Small Cell Lung Cancers (NSCLC): Is there a difference in outcomes?  [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Iganej, S., Bhattasali, O., Thompson, L.D.R. (2017, September 24-27). Definitive Concurrent Chemoradiation with Triweekly Carboplatin as a De-Intensification Alternative to Triweekly Cisplatin for Early Stage p16-positive Oropharyngeal Cancer [Oral Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Schumacher, A., Rao, A. (2017, September 24-27). Watchful Waiting After Complete Clinical Response Following Concurrent Chemoradiation For Rectal Adenocarcinoma/Non-Operative Watch and Wait Versus Standard of Care Surgical Total Mesorectal Excision (TME) Following Complete Clinical Response (cCR) to Chemoradiation, a Prospective Cohort Study [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Schumacher, A., Kang, J. (2017, September 24-27). Novel Clinical Tools To Guide Management of Prostate Cancer: Preoperative Predictive Models to Identify Patients at Risk for Needing Adjuvant Radiation (T3 or +margin) or Having Detectable Postoperative PSA [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Schumacher, A., Rao, A. (2017, October). Watchful Waiting After Complete Clinical Response Following Concurrent Chemoradiation For Rectal Adenocarcinoma/Non-Operative Watch and Wait Versus Standard of Care Surgical Total Mesorectal Excision (TME) Following Complete Clinical Response (cCR) to Chemoradiation, a Prospective Cohort Study [Conference Presentation]. American College of Surgeons Clinical Congress, San Diego, CA, United States.

Zhi, M., Iganej, S. (2017, September 24-27). Outcomes of Stage I-II Squamous Cell Carcinoma of the Oral Tongue (OTSCC) Managed with Surgery Including an Elective Nodal Dissection: Potential Indications for Postoperative Radiation Therapy (PORT) [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.

Zhi, M., Soper, S. (2017, September 24-27). Ductal Adenocarcinoma of the Prostate Gland Treated with Radical Prostatectomy or Radiation Therapy: A Single Institutional Retrospective Review with Long-Term Follow-up [Poster Presentation]. 2017 ASTRO Annual Meeting, San Diego, CA, United States.