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Dr. Sarthak Tandon

MBBS, DNB (Radiation Oncology)

Consultant, Department of Radiation Oncology

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RGCIRC, Rohini, Delhi - 110085

About

Dr. Sarthak Tandon is a highly trained and experienced radiation oncologist with over a decade of expertise in the field. As a dedicated professional at Rajiv Gandhi Cancer Institute & Research Centre, he is committed to improving patient care and quality of life through both clinical practice and translational research. A firm believer in the impact of research on enhancing survival and outcomes, Dr. Tandon has developed substantial expertise in advanced radiotherapy techniques, including IMRT, IGRT, and SBRT, employing the latest technologies such as LINACs and the CyberKnife™ system.

Dr. Tandon completed his MBBS at the esteemed Government Medical College, Amritsar, followed by specialized training in radiation oncology at Rajiv Gandhi Cancer Institute & Research Centre. His outstanding dedication to his field has earned him numerous awards, research grants, and recognitions, including the prestigious Dr. Satyapal Agarwal Gold Medal from the National Board of Examinations for ranking first in his DNB exams nationwide.

Currently, Dr. Tandon serves as a Consultant in the Head and Neck and CNS oncology unit, where he focuses on maximizing patient survival and quality of life through state-of-the-art techniques like IGRT, IMRT, and SBRT, delivered via Tomotherapy, LINACs, and CyberKnife systems. In addition to his clinical work, Dr. Tandon actively engages in research and is a co-principal investigator for an ongoing Phase II interventional trial at the institute, which aims to enhance the efficacy of radiation therapy.

In addition to his clinical and research roles, Dr. Tandon is actively involved in the department’s teaching program and is frequently invited to lecture and conduct workshops at prominent institutions, conferences, and training programs, including ICRO (Indian College of Radiation Oncologists). Through these engagements, he plays a key role in fostering best clinical and safety practices among the next generation of radiation oncologists. Dr. Tandon’s dedication to excellence in patient care, research, and education makes him a valuable asset to both Rajiv Gandhi Cancer Institute & Research Centre and the wider medical community.

Specialized Areas

  • IMRT/IGRT to head and neck (Oral cavity, tonsil, base of tongue, throat, etc)
  • Brachytherapy (internal implant radiation localizing to tumour)
  • Treating benign and malignant brain tumours (Meningioma, Glioma like glioblastoma)
  • Craniospinal Irradiation
  • SRS, SBRT for the regions of head and neck and brain using advanced Cyberknife™, LINAC systems
  • Complex radiation planning especially in re-irradiation (for cases requiring second radiation schedule)

Educational Background

  • MBBS, Amritsar
  • DNB Radiation Oncology, RGCIRC, Delhi

Experience

  • Consultant- Radiation Oncology RGCIRC, Delhi: May-2022-till date
  • Observership (proton beam therapy, head and neck), Moores Cancer Centre, University of California San Diego: 2024
  • Attending Consultant- Radiation Oncology, Delhi: 2020 – 2022
  • Observership (NHS), Norwich and Norfolk hospital, NHS trust, Norwich UK: 2019
  • Observership (total body irradiation), Cleveland Clinic USA: 2018
  • Senior Residency- Radiation Oncology, RGCIRC, Delhi: 2017 – 2020
  • Observership- Radiation Oncology, Tata Memorial Hospital, Mumbai: 2015 –2016
  • Medical Officer at SHS, PC & PNDT at Government of NCT, Delhi: 2011 – 2014

Professional Journey

Achievements

  • Talks, moderatorship and panelist in many national and international academic conferences.
  • Authored more than 50 peer-reviewed research papers on head and neck oncology
  • Part of national and international collaboration on Artificial Intelligence, trial and research
  • Authors for book chapters focusing on radiation therapy in head and neck cancer
  • International Fellowship in USA, UK
  • Reviewed research publications for other authors in international journals

Awards

  • Best Young Investigator Award (2022) at Research Board, RGCIRC
  • National Dr Satyapal Agarwal Gold Medal (2016) from National Board of Education
  • Best Oral presentation in the senior residency category in NZAROI 2018
  • Best Poster – Young Radiation Oncology Conference (YROC) 2018 held at Max hospital, Delhi. (Topic: Prospective Study Analyzing Pattern of Recurrence in Head And Neck Cancer Treated By IMRT Using Spatial Centroid-Based Method)
  • 2nd Best Oral Presentation at AROICON (Association of Radiation Oncology of India) – North Zone 2017 held at Hissar. (Topic: Hypofractionated accelerated radiotherapy versus conventional fractionation in the era of dose painting IMRT in locally advanced head and neck cancer – A prospective comparative study.)
  • 2nd Best Poster Presentation in Indo-Global Summit of Head and Neck Oncology 2017 in Jaipur (Topic: An Institutional review of baseline hemoglobin levels as a prognostic/predictive marker for outcomes with radiotherapy in terms of early tumour response in squamous cell head and neck cancers – A Rajiv Gandhi Cancer Institute & Research Centre Experience)
  • Best Resident Award Year 2016 at Rajiv Gandhi Cancer Institute & Research Centre during DNB Residency
  • 2nd Best Poster Presentation in RGCON 2016 in Delhi. (Topic: Image Guided Interstitial Brachytherapy For Locally Advanced Disease After External Beam Radiotherapy In A Case Of Carcinoma Cervix – Our Institutional Experience)
  • Selected in Best Paper category in AROICON 2015 in Lucknow. (Topic: How smart is SMART for LAHNC – a fractionation schedule revisited)
  • Best Poster presentation in RGCON 2015 in Delhi (Topic: A pilot study comparing two fractionation schedules in LAHNC in a prospective manner – SMART versus SIB)
  • Twice received best topic presentation awards in Tumour Board meetings at RGCIRC in the year 2014 and 2015.

Publication

  • Sarthak Tandon, Manoj Gupta.. and Munish Gairola. DE_HyART trial: Study protocol for phase 2 randomised controlled study assessing the role of dose escalation using [18F] FMISO PET CT in head and neck cancers – Trials preprint 2024
  • Sarthak Tandon, Akash Bellige et al. Depth of Invasion predicting survival with adjuvant radiotherapy in early tongue squamous carcinoma. Radiotherapy and Oncology 2024 (Green Journal)
  • Sauharda Lohani, Sarthak Tandon et al. Role of Induction chemotherapy combined with radical chemoradiotherapy in unresectable oral cancer. Radiation and Oncology 2024
  • Relationship and concordance between CT, MRI and PET for target delineation of oropharyngeal cancer
- Radiotherapy and Oncology 2024 (Green Journal)
  • Parveen Ahlawat, Sarthak Tandon et al. Three dimensional tumour volume predicts early response in recurrent oropharyngeal cancer – Radiotherapy and Oncology 2024 (Green Journal)
  • Preetha Umesh, Sarthak Tandon et al. Search for the ideal palliative fractionation regimen in HNC : a single institutional experience. – Radiotherapy and Oncology 2024 (Green Journal)
  • Parveen Ahlawat, Sarthak Tandon et al. Set-up errors and determination of planning target volume margin for IGRT for head and neck cancers – Radiotherapy and Oncology 2024 (Green Journal)
  • Ahmad I, Chufal KS, Miller AA, Bajpai R, Umesh P, Dawer A, Tandon S, et al. Is it too early to recommend local treatment in oligometastatic NSCLC: a plea for equipoise. Br J Radiol. 2024
  • Umesh P, Akhter S, Tandon S, Ahlawat P, Purohit S, Gairola M. Survival Outcomes in Different Sino-nasal Malignancies: An Institutional Review. Journal of Current Oncology. 2024 Mar 13;25898892241232746.
  • Purohit S, Ahlawat P, Tandon S, Bellige AR, Gairola M. Myxofibrosarcoma of Head and Neck Region – A Rare Case Report. Indian J Otolaryngol Head Neck Surg. 2024 Feb;76(1):1174–7.
  • Purohit S, Ahlawat P, Tandon S, Jain A, Gairola M. Challenges seen with peri-neural invasion in head and neck cancer – A review article. Oral Oncology Reports. 2023 Jun;6:100028.
  • Mitra S, Simson D, Khurana H, Tandon S, Ahlawat P, Bansal N, et al. Treatment Delay during Radiotherapy of Cancer Patients due to COVID-19 Pandemic. Asian Pac J Cancer Prev. 2022 Jul 1;23(7):2415–20.
  • Joshi K, Agarwal M, Pasricha S, Singh A, Garg S, Rai S and Tandon S. Macroscopic Extranodal Extension In Oral Squamous Cell Carcinoma-A Subgroup With Poor Survival. Laryngoscope. 2022 May 14;
  • Tandon S, Ahlawat P, Pasricha S, Purohit S, Simson DK, Dobriyal K, et al. Depth of Invasion as an Independent Predictor of Survival in Patients of Stage III Squamous Cell Carcinoma of the Oral Tongue. Laryngoscope. 2021
  • Tandon S, Ahlawat P, Gairola M et al. Use of definitive locoregional radiotherapy for consolidation in de‐novo metastatic head and neck cancer responding to systemic therapy. Article in Press
  • Ahlawat P, Singh T, Gairola M, Tandon S, Purohit S, Sachdeva N, et al. Inter-Correlations Between Various High-Risk Pathological Factors in Resected Buccal Mucosal Squamous Cell Carcinoma. International Journal of Radiation Oncology*Biology*Physics. 2021 Nov;111(3):e390.
  • Tandon S, Gairola M, Ahlawat P, Purohit S, Umesh P, Krishnan A. Would Full-Dose Radiotherapy Benefit Patients With Synchronous Oligometastatic Head & Neck Squamous Cell Carcinoma. International Journal of Radiation Oncology*Biology*Physics. 2021 Nov;111(3):e379.
  • Bhushan M, Tripathi D, Yadav G, Kumar L, Dewan A, Tandon S. Effect of contrast medium on treatment modalities planned with different photon beam energies: a planning study. Rep Pract Oncol Radiother. 2021;26(5):688–711.
  • Muttagi V, Ahlawat P, Gairola M, Tandon S, Purohit S, Dobriyal K, et al. 921P Assessment of health-related quality of life in head and neck cancer patients treated with chemoradiation. Annals of Oncology. 2021 Sep;32:S811.
  • Sharief MI, Ahlawat P, Gairola M, Erum T, Tandon S, Purohit S, et al. PO-1865 Simultaneous integrated boost IMRT versus sequential IMRT in head and neck cancers. Radiotherapy and Oncology. 2021 Aug;161:S1589–90.
  • Purohit S, Ahlawat P, Gairola M, Tandon S, Sharief MI, Sachdeva N, et al. PO-0977 Comparison of therapy outcomes between 2-dimensional radiotherapy and IMRT for early glottic cancer. Radiotherapy and Oncology. 2021 Aug;161:S810–1.
  • Ahlawat P, Krishnan A, Gairola M, Tandon S, Purohit S, Sachdeva N, et al. PO-1028 Inter-correlations between various high-risk pathological factors in squamous cell carcinoma tongue. Radiotherapy and Oncology. 2021 Aug;161:S856.
  • Umesh P, Tandon S, Gairola M, Ahlawat P, Purohit S, Dobriyal K. PO-0981 Wide histological spectrum of sinonasal malignancies and survival outcomes – An Institutional review. Radiotherapy and Oncology. 2021 Aug;161:S814–6.
  • Tandon S, Gairola M, Ahlawat P, Purohit S, Umesh P, Krishnan A. PO-0972 Pre-treatment haemoglobin as a surrogate marker for survival in head & neck squamous cell carcinoma. Radiotherapy and Oncology. 2021 Aug;161:S805–6.
  • Mandal A, Singh P, Tandon S, Singh D. “Radiation Recall Phenomenon” with Novel Cytotoxic Agents: An Emerging Trend in the Last Decade. Indian Journal of Medical and Paediatric Oncology. 2021 Feb;42(01):028–34.
  • Dewan A, Chufal K, Tandon S, Ahmad I, Suresh T, Dewan A, et al. A case report evaluating combined effect of intensity-modulated radiotherapy and deep inspiratory breath-hold for mediastinal lymphoma: A dosimetric analysis. Lung India. 2020;37(1):57.
  • Tandon S, Gairola M, Ahlawat P, Narang R, Varghese A, Sharma M. PO-129: Definitive radiotherapy in oligometastatic head and neck cancers responding to systemic therapy. Radiotherapy and Oncology. 2019 Dec;141:S55.
  • Tandon S, Gairola M, Ahlawat P, Karimi AM, Tiwari S, Muttagi V, et al. Failure patterns of head and neck squamous cell carcinoma treated with radical radiotherapy by intensity modulated radiotherapy technique using focal volume and dosimetric method. Head Neck. 2018 Dec 23;
  • Tandon S, Gairola M, Ahlawat P, Sharma K, Barik S, Sachdeva N, et al. Sinonasal teratocarcinosarcoma treated with surgery followed by volumetric modulated radiotherapy: a case report with review of literature. Radiat Oncol J. 2018 Dec;36(4):341–7
  • Tandon S, Gairola M, Ahlawat P, Rawat S, Aggarwal A, Sharma K, et al. Randomized controlled study comparing simultaneous modulated accelerated radiotherapy versus simultaneous integrated boost intensity modulated radiotherapy in the treatment of locally advanced head and neck cancer. J Egypt Natl Canc Inst. 2018 Sep;30(3):107–15
  • Manoj K Sharma, Eugen B Hug, Manindra Bhushan, Dennis Mah, Dominic Maes, Munish Gairola, S.K. Sharma, Girigesh Yadav, Manoj Pal, Deepika Chauhan, Abhinav Dewan, Inderjit Kaur, Sarthak Tandon, Swarupa Mitra. Dosimetric Comparison of Pencil-Beam Scanning and Photon-Based Radiation Therapy as a Boost in Carcinoma of Cervix. International Journal of Particle Therapy. 2017 Sep;4:1–10.
  • Tandon S, Gairola M, Pal M, Aggarwal A, Sharma K, Karimi AM, et al. The use of adaptive intensity-modulated radiotherapy in the treatment of small-cell carcinoma lung refractory to chemotherapy in a patient with preexisting interstitial lung disease. Lung India. 2018 Feb;35(1):54–7.
  • Parveen Ahlawat, Sheh Rawat, Anjali Kakria, Manoj Pal, Deepika Chauhan, Sarthak Tandon, Shraddha Jain. Tumour volumes: Predictors of early treatment response in locally advanced head and neck cancers treated with definitive chemoradiation. Reports of practical oncology and radiotherapy 21 (2016); 419–426; DOI:10.1016/j.rpor.2016.04.00
  • Rawat, H. Srivastava, P. Ahlawat, M. Pal, G. Gupta, D. Chauhan, S. Tandon, R. Khurana. Weekly versus three-Weekly Cisplatin-based Concurrent Chemoradiotherapy as definitive treatment in Head and neck Cancer – Where do we stand? G. J. O. Issue 21, 2016
  • Nishtha Gupta, Manoj Pal, Sheh Rawat, Mandeep S. Grewal, Himani Garg, Deepika Chauhan, Parveen Ahlawat, Sarthak Tandon, Ruparna Khurana, Anjali K. Pahuja, Mayur Mayank, Bharti Devnani. Radiation‑induced dental caries, prevention and treatment ‑A systematic review. Natl J Maxillofac Surg 2015;6:160-6.
  • K. Sharma, Abhinav Dewan, A.K. Dewan, Anjali Pahuja, Manoj Pal, Sheh Rawat, Swarupa Mitra, M.K. Sharma, Sarthak Tandon, Raman Narang, Manindra Bhushan. Role of adaptive radiotherapy in locally advanced head and neck cancer: A dosimetric analysis . European Journal of Cancer 51:e6 · July 201
  • Mayank tyagi, S.K. Sharma, Abhinav Dewan, Sarthak Tandon, Girigesh Yadav, G.S. Wadhwan, Manindra Bhushan, Lalit Kumar, Hindol Bandyopadhyay. Assessment of set-up errors in frameless fractionated SRT of cranial lesions with CBCT and immobilization cast. DOI: 10.1016/S0167-8140(15)41609-3
  • Parveen Ahlawat, Sheh Rawat, Anjali Kakria, Manoj Pal, Deepika Chauhan, Ruparna Khurana, Sarthak Tandon. Utilization and incorporation of tumor volume data in staging and prognostication of head and neck squamous cell and prognostication of head and neck squamous cell carcinoma treated with definitive radiotherapy: A systematic review. Asian J Oncol 2015;1:21-32

Membership

  • Association of Radiation Oncologist of India (AROI) life-time membership (2327)
  • Indian College of Radiation Oncologist (ICRO) life-time membership (394)
  • Delhi Medical Council