Survival and relapse patterns in patients of cranial vs extra-cranial oligometastases treated with stereotactic radiosurgery/stereotactic body radiation therapy and systemic therapy.

Objectives: To evaluate the outcome of patients with cranial (C) and extra-cranial (EC) oligometastases treated with stereotactic radiosurgery (SRS)/stereotactic body radiotherapy (SBRT) and standard of care systemic therapy.

Methods: During the period 2018-2022, patients who received SBRT or SRS for oligometastases (≤5 lesions) in addition to systemic therapy were evaluated. PET-CT was done to categorize them as C or EC oligometastases.

Near complete resolution of COVID-19 pneumonia lesions in a patient of carcinoma lung treated with volumetric modulated arc therapy.

A 49-year-old male presented with non-small cell lung cancer in right upper lobe lung with solitary brain metastasis. He developed COVID-19 infection and received domiciliary treatment for 3 weeks. Three weeks after testing negative for RT-PCR test, he received stereotactic radiosurgery (SRS) to brain metastasis.

Pharmacokinetics and Bioequivalence Study of a New Branded Generic Moxifloxacin Tablet Among Healthy Volunteers.

A newly developed branded generic of a moxifloxacin (MOX) 400-mg tablet formulation was manufactured prior to this study. A bioequivalence (BE) study was done to assess the pharmacokinetics of the formulation using a randomized, open-label, 2-period crossover, 2-sequence, and single-dose experiment. Thirty healthy male volunteers were recruited.

Stereotactic ablative radiotherapy (SABR) for recurrent and previously irradiated head and neck cancers.

Objective: To assess the response and toxicity of stereotactic ablative radiotherapy (SABR) in patients with recurrent head and neck cancer (HNC), who had previously received radiation for their primary tumor.

Methods: Between 2014 and 2018, patients who received SABR to recurrent HNC within the previously irradiated region were retrospectively reviewed. Mean age was 60 years (range 30-78 Years).

Development and Validation of a MATLAB Software Program for Decoding the Treatment Errors in Real-time Position Management™ Gating-generated Breathing Trace.

Introduction: The Real-time Position Management™ (RPM) is used as a motion management tool to reduce normal tissue complication. However, no commercial software is available to quantify the "beam-on" errors in RPM-generated breathing traces. This study aimed to develop and validate an in-house-coded MATLAB program to quantify the "beam-on" errors in the breathing trace.

The Composite Planning Technique in Left Sided Breast Cancer Radiotherapy: A Dosimetric Study.

Objective: The aim of this retrospective study is to reduce the dose of heart, both lung and opposite breast and left anterior descending artery (LAD) and avoid long term complication and radiation induced secondary malignancies in radiotherapy left breast/chest wall without losing homogeneity and conformity of the Planning Target Volume (PTV), contoured using Radiotherapy Oncology Group (RTOG 1005) guideline.

Materials And Methods: The treatment plans were generated retrospectively by TFIF, VMAT and Composite techniques for 30 patients. Dose-Volume Histograms (DVHs) were evaluated for PTV and organs at risk (OAR's) and analyzed in two groups BCS and MRM using Wilcoxon signed rank test.

Indian clinical practice consensus guidelines for the management of squamous cell carcinoma of head and neck.

Head and neck cancers (HNCs) are malignant tumors of the upper aerodigestive tract and are the sixth most common cancer worldwide. In India, around 30-40% of all cancers are HNCs. Even though there are global guidelines or recommendations for the management of HNCs, these may not be appropriate for Indian scenarios.

Palliative chemotherapy with or without cetuximab in recurrent or metastatic squamous cell carcinoma of the head and neck: Indian tertiary care retrospective analysis.

Background: We report our experience with Indian patients who received palliative chemotherapy with/without cetuximab for recurrent/metastatic squamous cell carcinoma of the head and neck (R/M SCCHN).

Methods: Data from 229 R/M SCCHN patients treated with cetuximab and chemotherapy (n = 140) or chemotherapy alone (n = 89) were retrospectively analyzed for response rate (RR), progression-free survival (PFS), overall survival (OS), and safety.

Results: Patients receiving cetuximab with chemotherapy demonstrated significant increase in RR (77.

Stereotactic ablative body radiotherapy (SABR) for inoperable, chemorefractory retroperitoneal lymph node relapse from non seminomatous germ cell tumour of testis: a case report.

We describe a case of non-seminomatous germ cell tumour (NSGCT) of the testis with oligorecurrence in para-aortic nodal mass, which was inoperable and chemorefractory. Conventionally fractionated radiotherapy in this setting is generally believed to achieve poor results, because the dose is limited by the tolerance of surrounding normal tissues. Use of stereotactic ablative body radiotherapy (SABR) for para-aortic nodal recurrence from a few sites has been reported; its application in NSGCT has not been described in literature to our knowledge.

Significance of perineural invasion in locally advanced bucco alveolar complex carcinomas treated with surgery and postoperative radiation ± concurrent chemotherapy.

Background: The purpose of this study was to evaluate prognostic factors, locoregional control, and survival in locally advanced bucco-alveolar complex cancers.

Methods: A retrospective review of 83 patients treated between January 2009 and December 2012 with bucco-alveolar complex cancers was conducted. All patients had surgery and adjuvant radiotherapy with intensity-modulated radiotherapy (IMRT) with/without concurrent chemotherapy.

A comparison between four immobilization systems for pelvic radiation therapy using CBCT and paired kilovoltage portals based image-guided radiotherapy.

Introduction: We commonly use 6- and 4-clamped thermoplastic molds (TMs) for rigid immobilization during pelvic radiotherapy (RT), sometimes a vacuum cushion (VC) is also used as leg support with TM. Our objective was to report the setup margins (SMs) associated with the different systems, to analyze whether any of these systems is superior, and to analyze whether any of them showed better reproducibility in any particular direction.

Materials And Methods: Retrospective analysis was done by dividing the patients into four groups: 6-clamp with VC (6CVC), 6-clamp without VC (6CNC), 4-clamp with VC (4CVC), and 4-clamp without VC (4CNC).

Fractionated stereotactic radiosurgery with volumetric modulated arc therapy (Rapid Arc) for reradiation in recurrent high grade gliomas.

Background: To evaluate 'Rapid Arc (RA)' technique for delivering fractionated stereotactic radiosurgery (FSRS) in patients with recurrent high grade gliomas (HGGs) for minimizing the dose to previously radiated high dose brain volume.

Materials And Methods: Between April 2010 and February 2011, 16 consecutive patients with recurrent HGGs and previously treated with intensity modulated radiation therapy (IMRT) and Temozolamide received FSRS. The median time between IMRT and FSRS was 10.

Survival outcome and neurotoxicity in patients of high-grade gliomas treated with conformal radiation and temozolamide.

Background: To study the survival outcome and neurotoxicity grades in patients of high-grade glioma (HGG) treated with conformal radiation and temozolamide.

Materials And Methods: Forty-six patients of HGG received conformal post operative radiation and temozolamide in the period 2003 to 2007. Twenty seven patients had near total resection, 17 had subtotal resection and 2 had biopsy only.