Brachytherapy for Oral Cavity Cancers in the Era of Intensity-Modulated Radiotherapy: Save it or Shelve it

AbstractHead and neck cancer treatment includes a multidisciplinary approach involving all specialties. Surgery and radiotherapy are equally effective in controlling small tumors. Intensity-modulated radiotherapy (IMRT) and interstitial brachytherapy (ISBT) play an important role in the treatment of head and neck cancers. Both are proved to be highly conformal techniques of radiotherapy. Our aim is to compare dosimetric aspects of ISBT alone, IMRT alone, and IMRT combined with ISBT in early stage node negative oral cavity cancer. Ten cases of histopathologically proven early stage node negative oral cavity cancer were treated with external beam therapy followed by interstitial brachytherapy boost or ISBT alone. All these patients had undergone computerized tomography (CT) planning for brachytherapy. Retrospectively, these images were utilized, and three sets of plans were done for each patient ’s CT image set. Group A was IMRT alone plans, groups B had combined IMRT with ISBT boost, and group C was ISBT alone plans. Dosimetric details such as target coverage, dose to critical organs, and conformity index were compared between the three sets of plans. The mean values of the doses to the critical organs with IMRT alone and IMRT with ISBT boost were brainstem 10.40 Gy and 9.20 Gy, spinal cord 19.20 Gy and 16.10 Gy, mandible 62.99 Gy and 66.50 Gy, and I/L and C/L parotids were 6.03 Gy and 5.50 Gy and 5.70 Gy and 5.10 Gy wher...
Source: Indian Journal of Surgical Oncology - Category: Cancer & Oncology Source Type: research

Related Links:

Oral cancer is the sixth most common cancer worldwide with over 49 000 new cases expected in 2017 in the United States alone. Cancer of the oral cavity and oropharynx results in approximately 9700 deaths each year, with only a 50-60% 5-year survival rate. In addition to early diagnosis, research to develop new therapies targeted at tumor spread represent a potential strategy to lessen morbidity and mortality for those affected by oral squamous cell carcinoma (OSCC). Metformin is a widely used lipophilic biguanide that inhibits hepatic gluconeogenesis and improves peripheral utilization of glucose.
Source: Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Authors: Source Type: research
CONCLUSION: Treatment with PPE and erlotinib combination was well tolerated in patients with APLs of the head and neck, and showed a high rate of pathologic response with excellent CFS. This combination deserves further investigation for the chemoprevention and/or prevention of second primary tumors in early stage head and neck cancer. PMID: 32943457 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
Treatment package time (TPT) defined as days elapsing from surgery to the end of adjuvant radiation therapy (RT) is known to impact outcomes in head and neck cancer patients receiving adjuvant RT alone.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
Abstract Head and neck squamous cell carcinoma (HNSCC) is the primary malignant tumor of the oral cavity, larynx, nasopharynx, esophagus and tongue. Although several novel therapeutic methods for HNSCC have been developed, the final therapeutic effect on the patient is still not satisfactory. Thus, it is imperative that scientists identify novel distinguishable markers with specific molecular characteristics that can be used in therapeutic and prognostic evaluation. Previous reports have shown that long noncoding RNAs (lncRNAs) are important regulators of gene expression in many cancers, including head and neck sq...
Source: Molecular Biology Reports - Category: Molecular Biology Authors: Tags: Mol Biol Rep Source Type: research
Conditions:   Clinical Stage III Human Papillomavirus (HPV)-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8;   Clinical Stage IV HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8;   Locally Advanced Head and Neck Squamous Cell Carcinoma;   Locally Advanced Hypopharyngeal Squamous Cell Car cinoma;   Locally Advanced Laryngeal Squamous Cell Carcinoma;   Locally Advanced Oral Cavity Squamous Cell Carcinoma;   Locally Advanced Oropharyngeal Squamous Cell Carcinoma;   Pathologic Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8;   Pathologic Stag...
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Having trouble viewing this email? View it as a Web page. NIDCR's Fall 2020 E-Newsletter In this issue: NIDCR News Funding Opportunities NIH/HHS News Funding Notices Science Advances Subscribe to NICDR News Grantee News   NIDCR News NIDCR Announces Availability of COVID-19 Research Funding On May 5, NIDCR issued two Notices of Special Interest highlighting the urgent need for research on coronavirus disease 2019. This research may be conducted either via the National Dental PBRN infrastructu...
Source: NIDCR Science News - Category: Dentistry Source Type: news
AbstractDisseminated cysticercosis is a rare manifestation of cysticercosis, a relatively common tropical disease in Asia, Africa and South America. Here the embryo of pork tapewormTaenia Solium gets disseminated to multiple organs and tissues via hepatoportal system. we report here a 45  year gentleman with stage IV oral malignancy who was incidentally found to have disseminated cysticercosis on pre-operative work up. Along with the management of primary cancer and new found asymptomatic disseminated cysticercosis, the ethical challenge was to choose an appropriate reconstructive option for the composite oral cavity ...
Source: Indian Journal of Otolaryngology and Head and Neck Surgery - Category: ENT & OMF Source Type: research
This study aims to report a 4-case series of patients subjected to neck and head cancer therapy as well as to show how oral mucositis progression occurred after low-intensity laser therapy was used during the antineoplastic treatment. We used a 21-point red radiation protocol at 1 J for prevention and treatment of oral mucositis into the oral cavity ruling out the primary tumor sites and 1 J of infrared radiation in case of painful symptoms.
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - Category: ENT & OMF Authors: Tags: 20190410 Source Type: research
Conclusions The MSAP flap provides adequate small-volume replacement for oral cavity reconstructions. Our results indicate that most patients achieve a full diet with no restrictions by 1 year after reconstruction. Most of our patients demonstrated excellent speech with little or no need for repetition in conversation. Over the past few years, this has become the flap of choice for oral cavity reconstruction in our unit.
Source: Annals of Plastic Surgery - Category: Cosmetic Surgery Tags: Microsurgery Source Type: research
Conclusion: This is the first report of a TERT promoter mutations in HNSCC patients from South America. The high prevalence of TERT mutation, as well as its association with poor disease-free survival and overall survival, particular at C228T locus might serve as a prognostic biomarker in HNSCC to help clinicians in the management of treatment.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
More News: Brachytherapy | Cancer | Cancer & Oncology | Computers | External Beam Therapy | Head and Neck Cancer | India Health | Intensity-Modulated Radiation Therapy | Oral Cancer | Oral Cavity Cancer | Statistics | Toxicology