head and neck cancer – Page 21

New radiotherapy technique proven safe, less toxic for cancer patients, University Of Pittsburgh Cancer Institute study finds

Source: Medicalnewstoday.com Author: Staff A new technique known as stereotactic body radiotherapy (SBRT) is safe for patients with recurrent head and neck cancers and may improve their quality of life, according to researchers from the University of Pittsburgh Cancer Institute (UPCI). Results of the phase I study were reported today in the International Journal of Radiation Oncology, Biology, Physics. Each year approximately 500,000 cases of squamous cell carcinoma of the head and neck are diagnosed worldwide. While treatment has improved with advances in surgery, radiation and chemotherapy, more than half of patients will die from recurrent disease. Treatment options for patients with recurrent disease are limited, and for many, surgery may not be an option, according to principal investigator Dwight E. Heron, M.D., director, Radiation Oncology Services, UPMC Cancer Centers. "Chemotherapy alone can provide this patient population some palliation and pain relief, but it doesn't prolong survival," said Dr. Heron. "A few patients may be able to receive additional radiation treatments, but head and neck cancers, by their very nature, develop in very delicate areas of the body, which provide significant retreatment challenges." SBRT may offer these patients an alternative, noted Dr. Heron. "At the completion of our study, we found this treatment was tolerated very well. No maximum tolerated dose was reached, and no toxicities occurred that caused us to limit the dosing." SBRT is a relatively new technique using CyberKnife® technology, which delivers high doses of radiation with more precision than conventional techniques. The vast majority of patients complete [...]

Charlotte Parker2009-06-21T06:01:15-07:00June, 2009|Oral Cancer News|

Researchers confirm link between HPV and head and neck cancer but survey shows public ignorance on role of oral sex

Source: Medicalnewstoday.com Author: Olwen Glynn Owen Human papillomavirus (HPV) is an important causative agent in squamous cell cancers of head and neck (HNSCC) a new meta-analysis presented at the American Society of Clinical Oncology (ASCO) confirms; but a separate European survey at the same meeting reveals the public is woefully ignorant about it and possible ways to avoid it. Lack of public awareness about the possible link between HPV-related head and neck cancer and oral sex with multiple partners presents a case for making vaccinations against HPV more widely available to boys as well as girls before they become sexually active, commented leading expert Professor Jean-Louis Lefebvre of Centre Oscar Lambret, Lille, France. Researchers led by Farshid Dayyani at the MD Anderson Cancer Center, Houston, Texas, looked at a total of almost 7000 patients who developed head and neck cancer over the past 20 years to gauge the prevalence of HPV - a possible causative agent. They included studies which had tested for the virus in serum or in tumour tissue by PCR and found almost a quarter of patients (24.2%) had HPV positive tumours. Of these the vast majority (86.8%) were positive for HPV 16, the virus also associated with cervical cancer. Overall, the researchers concluded that being HPV positive increased the risk of developing head and neck cancer by 40 per cent. But being HPV16 positive increased the risk more than fourfold (4.47 times higher) compared to HPV16 negative patients. However, people with HPV-associated head and neck cancer lived [...]

Charlotte Parker2009-06-19T07:40:26-07:00June, 2009|Oral Cancer News|

Interaction between tobacco and alcohol use and the risk of head and neck cancer: pooled analysis in the international head and neck cancer epidemiology consortium

Source: Cancer Epidemiology Biomarkers & Prevention, 10.1158/1055-9965.EPI-08-0347 Authors: Mia Hashibe et al. Background: The magnitude of risk conferred by the interaction between tobacco and alcohol use on the risk of head and neck cancers is not clear because studies have used various methods to quantify the excess head and neck cancer burden. Methods: We analyzed individual-level pooled data from 17 European and American case-control studies (11,221 cases and 16,168 controls) participating in the International Head and Neck Cancer Epidemiology consortium. We estimated the multiplicative interaction parameter ({psi}) and population attributable risks (PAR). Results: A greater than multiplicative joint effect between ever tobacco and alcohol use was observed for head and neck cancer risk ({psi} = 2.15; 95% confidence interval, 1.53-3.04). The PAR for tobacco or alcohol was 72% (95% confidence interval, 61-79%) for head and neck cancer, of which 4% was due to alcohol alone, 33% was due to tobacco alone, and 35% was due to tobacco and alcohol combined. The total PAR differed by subsite (64% for oral cavity cancer, 72% for pharyngeal cancer, 89% for laryngeal cancer), by sex (74% for men, 57% for women), by age (33% for cases <45 years, 73% for cases >60 years), and by region (84% in Europe, 51% in North America, 83% in Latin America). Conclusions: Our results confirm that the joint effect between tobacco and alcohol use is greater than multiplicative on head and neck cancer risk. However, a substantial proportion of head and neck cancers cannot be attributed to tobacco [...]

Oral Cancer Foundation News Team - A2009-02-04T08:54:19-07:00February, 2009|Oral Cancer News|

The Australian PET Data Collection Project is amassing more evidence that shows that PET positively changes management plans for cancer patients

Source: Journal of Nuclear Medicine (October 2008, Vol. 49:10, pp. 1593-1599) Author: Dr. Andrew Scott et al. Led by Dr. Andrew Scott, director of the Centre for PET at Austin Hospital in Melbourne, the newest research shows that PET provides important prognostic information in a large proportion of patients with untreated head and neck cancer, and detects additional sites of disease. The prospective study, published in the October issue of the Journal of Nuclear Medicine (October 2008, Vol. 49:10, pp. 1593-1599), was conducted at three Australian PET centers between December 17, 2003, and June 3, 2005. The criteria for enrollment included patients who previously had untreated carcinoma of the nasal cavity, nasopharynx, oral cavity, oropharynx, hypopharynx, or larynx, or had metastatic disease involving cervical lymph nodes from an unknown primary. Patients underwent examination under anesthesia and biopsy to confirm their diagnosis of cancer. Contrast-enhanced CT of the neck was required within six weeks of the PET scan. Patients fasted for a minimum of six hours before the PET study and received a dose of 120-440 MBq FDG intravenously. After a minimum uptake period of 45 minutes, researchers acquired PET data from the skull vertex to at least the lower abdomen. Treatment plans Before receiving the results of the PET scans, researchers asked referring clinicians to document their management plan for the patient, as if PET findings were not available, but with access to all other clinical and conventional imaging results. The management plan provided information on options such as surgery, [...]

Oral Cancer Foundation News Team - A2008-10-10T03:50:59-07:00October, 2008|Oral Cancer News|

Seven patients affected by Royal Adelaide Hospital mistake

Source: The Independent Weekly (www.independentweekly.com.au) Author: staff Seven cancer patients may have suffered due to errors with their treatment at the Royal Adelaide Hospital, a review has found. Tabling the details in the South Australian parliament today, Health Minister John Hill said the impact on the individuals concerned was considered small but real. "The consulting oncologist will be contacting these patients to ensure they continue to have ongoing checks on their future health, though the patients will not require additional treatment," Mr Hill said. Earlier this year it was revealed more than 800 patients received incorrect radiation treatments at the RAH after one of its four linear accelerators was found to be delivering a dose five per cent below the recommended level between 2004 and 2006. The government ordered a review of all treatments on the machine during that period, bringing in a cancer expert from interstate. That review found most of the patients concerned had not been affected by the error. But it found there was the possibility of a reduced survival rate for five patients suffering from high-grade brain tumours. It also revealed a head and neck cancer patient had their care compromised by two per cent and required future monitoring and ordered future monitoring for a prostate cancer patient who received radiotherapy as the only treatment for the condition. SA Health chief executive Tony Sherbon said that while the review found the majority of patients did not have their treatments compromised, some would suffer psychological distress. "Some [...]

Oral Cancer Foundation News Team - A2008-09-10T07:11:56-07:00September, 2008|Oral Cancer News|