radiation – Page 7 – Oral Cancer News

Penn surgeons become world’s first to test glowing dye for cancerous lymph nodes

Source: www.phillyvoice.com Author: Michael Tanenbaum, PhillyVoice Staff Surgeons at the University of Pennsylvania have achieved a global first with the use of a fluorescent dye that identifies cancerous cells in lymph nodes during head and neck cancer procedures. The study, led by otorhinolaryngologist Jason G. Newman, seeks to test the effectiveness of intraoperative molecular imaging (IMI), a technique that illuminates tumors to provide real-time surgical guidance. More than 65,000 Americans will be diagnosed with head and neck cancers in 2017, accounting for approximately 4 percent of all cancers in the United States, according to the National Cancer Institute. About 75 percent of these cancers are caused by tobacco and alcohol use, followed by human papillomavirus (HPV) as a growing source for their development. Common areas affected by these cancers include the mouth, throat, voice box, sinuses and salivary glands, with typical treatments including a combination of surgery, radiation and chemotherapy. Lymph nodes, which act as filters for the immune system, are often among the first organs affected by head and neck cancers as they spread or resurface. Initial surgeries may leave microscopic cancerous cells undetected in the lymphoid tissue, heightening the risk that a patient's condition will return after the procedure. “By using a dye that makes cancerous cells glow, we get real-time information about which lymph nodes are potentially dangerous and which ones we can leave alone,” Newman said. “That not only helps us remove more cancer from our patients during surgery, it also improves our ability to spare [...]

Oral Cancer Foundation News Team - A2017-10-11T12:33:52-07:00October, 2017|Oral Cancer News|

Blood test for HPV may help predict risk in cancer patients

Source: www.newswise.com Author: University of North Carolina Health Care System A blood test for the human papillomavirus, or HPV, may help researchers forecast whether patients with throat cancer linked to the sexually transmitted virus will respond to treatment, according to preliminary findings from the University of North Carolina Lineberger Comprehensive Cancer Center. HPV can cause oropharyngeal cancer, which is a cancer of the throat behind the mouth, including the base of the tongue and tonsils. Studies have shown that patients with HPV-positive oropharyngeal cancer have better outcomes than patients whose cancer is not linked to the virus. Preliminary findings presented at this year’s American Society for Radiation Oncology Annual Meeting suggest a genetic test for HPV16 in the blood could be useful to help assess risk for patients, and could help identify patients suitable for lower treatment doses. “Our work on this blood test is ongoing, but we are optimistic that ‘liquid biopsy’ tests such as ours may be useful in the personalization of therapy for many patients with HPV-associated oropharyngeal cancer,” said the study’s senior author Gaorav P. Gupta, MD, PhD, UNC Lineberger member and assistant professor in the UNC School of Medicine Department of Radiation Oncology. To avoid over-treating patients and to spare them from toxic treatment side effects, UNC Lineberger’s Bhisham Chera, MD, an associate professor in the radiation oncology department, led studies testing whether favorable-risk patients with HPV-positive oropharyngeal cancer can be treated successfully with lower doses of radiation and chemotherapy. A phase II clinical trial [...]

Oral Cancer Foundation News Team - A2017-10-04T07:58:11-07:00October, 2017|Oral Cancer News|

Halving radiation therapy for HPV-related throat cancer offers fewer side effects, similar outcomes

Source: www.eurekalert.org Author: Mayo Clinic press release Mayo Clinic researchers have found that a 50 percent reduction in the intensity and dose of radiation therapy for patients with HPV-related throat cancer reduced side effects with no loss in survival and no decrease in cure rates. Results of a phase II study were presented today at the 59th Annual Meeting of the American Society for Radiation Oncology in San Diego by Daniel Ma, M.D. a radiation oncologist at Mayo Clinic. "A common approach for treating HPV-related throat cancer is a combination of surgery followed by daily radiation therapy for six to 6½ weeks," says Dr. Ma. "However, the radiation treatment can cause a high degree of side effects, including altered taste, difficulty swallowing, dry mouth, stiff neck and damage to the jaw bone." Dr. Ma says that patients with HPV-related throat cancer tend to be young and, once treated, are likely to live a long time with possibly life-altering side effects from the standard treatment. "The goal of our trial was to see if an aggressive reduction of radiation therapy (two weeks of radiation twice daily) could maintain excellent cure rates, while significantly reducing posttreatment side effects, improving quality of life and lowering treatment costs." Researchers followed 80 patients with HPV-related oropharyngeal squamous cell cancer with no evidence of residual disease following surgery and a smoking history of 10 or fewer pack years. That's the number of years smoking multiplied by the average packs of cigarettes smoked per day. At two [...]

Oral Cancer Foundation News Team - A2017-09-26T07:17:21-07:00September, 2017|Oral Cancer News|

Mayo Clinic Q and A: Throat cancer symptoms

Source: newsnetwork.mayoclinic.org Author: Dr. Eric Moore, Otorhinolaryngology, Mayo Clinic DEAR MAYO CLINIC: Are there early signs of throat cancer, or is it typically not found until its late stages? How is it treated? ANSWER: The throat includes several important structures that are relied on every minute of the day and night to breathe, swallow and speak. Unfortunately, cancer can involve any, and sometimes all, of these structures. The symptoms of cancer, how early these symptoms are recognized and how the cancer is treated depend on which structures are involved. All of the passageway between your tongue and your esophagus can be considered the throat. It includes three main areas. The first is the base of your tongue and tonsils. These, along with the soft palate and upper side walls of the pharynx, are called the oropharynx. Second is the voice box, or larynx. It consists of the epiglottis — a cartilage flap that helps to close your windpipe, or trachea, when you swallow — and the vocal cords. Third is the hypopharynx. That includes the bottom sidewalls and the back of the throat before the opening of the esophagus. Tumors that occur in these three areas have different symptoms, behave differently and often are treated differently. That’s why the areas of the throat are subdivided into separate sections by the head and neck surgeons who diagnose and treat them. For example, in the oropharynx, most tumors are squamous cell carcinoma. Most are caused by HPV, although smoking and alcohol can [...]

Oral Cancer Foundation News Team - A2017-06-22T08:04:29-07:00June, 2017|Oral Cancer News|

Symptoms of throat cancer depend on which throat structures are affected

Source: tribunecontentagency.com Author: Eric Moore, M.D. Dear Mayo Clinic: Are there early signs of throat cancer, or is it typically not found until its late stages? How is it treated? Answer: The throat includes several important structures that are relied on every minute of the day and night to breathe, swallow and speak. Unfortunately, cancer can involve any, and sometimes all, of these structures. The symptoms of cancer, how early these symptoms are recognized and how the cancer is treated depend on which structures are involved. All of the passageway between your tongue and your esophagus can be considered the throat. It includes three main areas. The first is the base of your tongue and tonsils. These, along with the soft palate and upper side walls of the pharynx, are called the oropharynx. Second is the voice box, or larynx. It consists of the epiglottis — a cartilage flap that helps to close your windpipe, or trachea, when you swallow — and the vocal cords. Third is the hypopharynx. That includes the bottom sidewalls and the back of the throat before the opening of the esophagus. Tumors that occur in these three areas have different symptoms, behave differently and often are treated differently. That’s why the areas of the throat are subdivided into separate sections by the head and neck surgeons who diagnose and treat them. For example, in the oropharynx, most tumors are squamous cell carcinoma. Most are caused by HPV, although smoking and alcohol can play a role [...]

Oral Cancer Foundation News Team - A2017-05-26T08:35:35-07:00May, 2017|Oral Cancer News|

Changing definition of margin status for oral cancer

Source: www.medpagetoday.com Author: staff Data cast doubt on 5-mm standard, use of frozen sections A commonly used metric for defining a close surgical margin for resected oral-cavity tumors failed to identify adequately the patients at increased risk of recurrence, a retrospective review of 432 cases showed. The analysis showed an inverse relationship with increasing distance between invasive tumor and inked main specimen margin on the main specimen, but results of a receiver operating characteristic curve analysis identified a cutoff of < 1 mm as most appropriate for classifying patients as having a high risk of local recurrence, as opposed to the more commonly used cutoff of 5 mm. The analysis also showed that resection of tissue beyond 1 mm on intraoperative frozen section did not improve local disease control, as reported online in JAMA Otolaryngology-Head and Neck Cancer. "The commonly used cutoff of 5 mm for a close margin lacks an evidential basis in predicting local recurrence," Steven M. Sperry, MD, of the University of Iowa in Iowa City, and colleagues concluded. "Invasive tumor within 1 mm of the permanent specimen margin is associated with a significantly higher local recurrence risk, though there is no significant difference for greater distances. "This study suggests that a cutoff of less than 1 mm identifies patients at increased local recurrence risk who may benefit from additional treatment. Analysis of the tumor specimen, rather than the tumor bed, is necessary for this determination." The results add to a growing volume of evidence that margins [...]

Oral Cancer Foundation News Team - A2017-05-05T13:02:10-07:00May, 2017|Oral Cancer News|

Beating HPV-positive throat cancer

Source: www.huffingtonpost.com Author: Pamela Tom, Contributor National Oral, Head, and Neck Cancer Awareness Week is April 12-18, 2017 For at least two years, 47 year-old Rob Clinton of Rochester, NY, would choke on post nasal drip in the shower. He knew something was wrong in his throat but he didn’t feel any pain. Did he have cancer? Clinton smoked cigarettes for 30 years and worked in an auto body shop where he was regularly exposed to carcinogens, but he wasn’t experiencing the typical symptoms of throat cancer. These include hoarseness or a change in the voice, difficulty swallowing, a persistent sore throat, ear pain, a lump in the neck, cough, breathing problems, and unexplained weight loss. In November 2015, Clinton went to the dentist to have his teeth cleaned. His dentist felt Clinton’s swollen neck and recommended that he visit a medical doctor. Clinton heeded the advice and sought the opinion of an ear, nose, and throat specialist at Strong Memorial Hospital in Rochester, NY. The ENT doctor sent Clinton to have a CAT scan and when he scoped Clinton’s throat, the doctor said, “I see something in there.” What he saw was a tumor and there were a few other things going on too. The Diagnosis The biopsy showed that Clinton had Stage IVa oral squamous cell carcinoma (OSCC) at the base of his tongue—and the cancer was HPV positive. HPV stands for the human papillomavirus and a recent survey found that more than 42% of Americans are infected [...]

Oral Cancer Foundation News Team - A2017-04-15T06:15:20-07:00April, 2017|Oral Cancer News|

Magnolia man joins exclusive trial in battle against cancer

Source: www.cantonrep.com Author: Denise Sautters Rich Bartlett is looking forward to getting back to his hobbies — woodworking and nature watching — and enjoying a good steak and potato dinner. Until then, though, he is in a fight for his life, one he plans to win. Bartlett is a cancer patient and the first participant in a clinical trial at University Hospitals Seidman Cancer Center in Cleveland to test the safety of an immunotherapy drug — Pembrolizumab — when added to a regimen of surgery, chemotherapy and radiation therapy. Back to the beginning Bartlett went to the dentist in October for a checkup. "He had a sore in his mouth he thought was an abscess," explained his wife, Nancy Bartlett, who pointed out that, because radiation and chemo treatments cause the inside of the mouth to burn and blister, it is hard for Bartlett to talk. "When the dentist looked at his sore, he sent Richard to a specialist in Canton, and in early November, he had a biopsy done. It came back positive for cancer." From there, he was referred to Dr. Pierre Lavertu, director of head and neck surgery and oncology at University Hospitals, and Dr. Chad Zender from the otolaryngology department, who did Bartlett's surgery. "They let us know it was serious," said Nancy. "It had gone into the bone and the roof of the mouth, but they were not sure if it had gone into the lymph nodes. By the time we got through that appointment, [...]

Oral Cancer Foundation News Team - A2017-03-20T08:31:02-07:00March, 2017|Oral Cancer News|

Silk and stem cells are being used to generate salivary glands

Source: biotechin.asia Author: Manish Muhuri Saliva is a watery substance secreted by the salivary glands located in the mouth. Saliva is essential for good health, as it assists in speaking, swallowing, food digestion, preventing oral infections in addition to many other tasks. Without normal salivary function the frequency of dental caries, gum disease (gingivitis), and other oral problems increases significantly. Location and types of salivary glands in humans. Image Courtesy : Wikimedia Commons Dysfunction or reduction in activity of salivary glands can be caused by many factors, including diabetes, radiation therapy for head and neck tumors, aging, medication side effects, and Sjögren’s syndrome. Sjogren’s is an autoimmune disease where the body attacks its own tear ducts and salivary glands. Patients suffering from this disease have severely dry mouth. No treatments are currently available for dry mouth. Salivary glands, unfortunately, have very little regenerative capacity. The title must have left you wondering about the correlation between silk and saliva – what do they have in common? They are both actually part of a unique experiment going on in San Antonio, a study that could change the lives of millions of people who suffer from dry mouth. Chih-Ko Yeh , BDS, Ph.D., and Xiao-Dong Chen, MD, MS, Ph.D., of the UT Health San Antonio School of Dentistry decided there had to be a better way to help people than try to develop drugs and figured that stem cells may help solve a common, painful problem. Yeh said the idea is [...]

Oral Cancer Foundation News Team - A2017-01-30T12:36:05-07:00January, 2017|Oral Cancer News|

Reducing Radiation Successfully Treats HPV-Positive Oropharynx Cancers and Minimizes Side Effects

Source: Yale Cancer Center, http://www.newswise.com/articles/reducing-radiation-successfully-treats-hpv-positive-oropharynx-cancers-and-minimizes-side-effects Released: 12/26/2016 Newswise — Human papillomavirus-positive oropharynx cancers (cancers of the tonsils and back of the throat) are on rise. After radiation treatment, patients often experience severe, lifelong swallowing, eating, and nutritional issues. However, new clinical trial research shows reducing radiation for some patients with HPV-associated oropharyngeal squamous cell carcinomas can maintain high cure rates while sparing some of these late toxicities. “We found there are some patients have very high cure rates with reduced doses of radiation,” said Barbara Burtness, MD, Professor of Medicine (Medical Oncology), Yale Cancer Center, Disease Research Team Leader for the Head and Neck Cancers Program at Smilow Cancer Hospital, and the chair of the ECOG-ACRIN head and neck committee. “Radiation dose reduction resulted in significantly improved swallowing and nutritional status,” she said. The study, published in the December 26 issue of the Journal of Clinical Oncology, showed that patients treated with reduced radiation had less difficulty swallowing solids (40 percent versus 89 percent of patients treated with standard doses of radiation) or impaired nutrition (10 percent versus 44 percent of patients treated with regular doses of radiation). “Today, many younger patients are presenting with HPV-associated squamous cell carcinoma of the oropharynx,” said Dr. Burtness. “And while traditional chemoradiation has demonstrated good tumor control and survival rates for patients, too often they encounter unpleasant outcomes that can include difficulty swallowing solid foods, impaired nutrition, aspiration and feeding tube dependence,” said Dr. Burtness. “Younger patients may have to deal with these [...]

Charlotte Parker2017-03-29T19:04:26-07:00January, 2017|Oral Cancer News|