Navigation Links
Voice-saver: Light therapy for early-stage laryngeal cancer
Date:1/28/2011

DETROIT Light, or photodynamic, therapy can help preserve the voice and vocal cord function for patients with early stage laryngeal (voice box) cancer, according to a study from Henry Ford Hospital in Detroit.

"Photodynamic therapy is an effective treatment for early laryngeal squamous cell carcinomas, offering patients a less invasive option with fewer side effects than other therapies, while preserving the voice," says study co-author Vanessa G. Schweitzer, FACS, M.D., a senior staff physician in the Department of Otolaryngology-Head & Neck Surgery at Henry Ford.

The study will be presented Jan. 29 at the Triological Society's Combined Section Meeting in Scottsdale, Ariz.

Each year in the United States, more than 10,000 people are diagnosed with laryngeal cancer. Those who smoke and drink alcohol are at a greater risk, according to the National Cancer Institute. Laryngeal cancer is most commonly treated with radiation therapy alone or in combination with surgery or chemotherapy.

But photodynamic therapy offers some patients another option.

"It is a good alternative to radiation and surgery for early staged lesions. It can preserve function and allow us to reserve use of radiation therapy and surgery both known to have more functional impairment on vocal cord function should the cancer recur following photodynamic therapy," says study lead author Melissa L. Somers, M.D., with the Department of Otolaryngology-Head and Neck Surgery at Henry Ford.

Having already performed more than 200 procedures more than any other hospital in Michigan Henry Ford physicians are center stage in the application and research for this procedure.

Photodynamic therapy works by destroying deadly cancer cells without harming surrounding healthy tissue. It uses a powerful laser and a nontoxic, light-activated drug called PHOTOFRIN. The laser activates the drug, causing a reaction in the cancer cells and destroying them.

Since photodynamic therapy does not damage the underlying tissue, it not only allows for multiple treatments but also for it to be given prior to or following other therapies, and when radiation therapy fails.

However, there is not a consensus in research literature as to which treatment surgery, radiation therapy or photodynamic therapy produces the best outcome for voice preservation.

The current Henry Ford study focuses on 10 patients with early stage squamous cell tumors of the larynx treated with photodynamic therapy. The study assessed how well the vocal cords moved following photodynamic therapy.

Both before and after photodynamic therapy, patients underwent videostroboscopy exams, a state-of-the-art technique that provides a magnified, slow-motion view of the vocal cords in use. The technique uses a small, angled telescope inserted through the mouth or nose to measure vocal cord vibrations while patients repeat words or sounds.

Results were analyzed by a speech language pathologist and laryngologist specializing in voice disorders for vocal cord movement and vibration.

During the first five weeks following treatment, researchers noted a significant worsening in the non-vibrating portion of the affected vocal cords, which is expected, says Dr. Somers.

Ten weeks following treatment, there was a noticeable improvement.

"In our study, patients undergoing PDT demonstrated initial significant impairment in the vocal cord vibratory parameters of mucosal wave, non-vibrating vocal cold and amplitude of vibration as well as appearance of vocal cold edge for both the tumor and non-tumor side," says Dr. Somers. "Most notably, over the course of a few weeks and months, there were consistent trends toward normal vocal cord vibration."

Patients do experience minor side effects from treatment such as photosensitivity, making them more sensitive to light and susceptible to severe sunburns. This lasts for about four weeks following the procedure. Patients also may experience temporary hoarseness.

Dr. Somers hopes future studies are aimed at a prospective comparison of photodynamic therapy to surgery and radiation and subsequent voice production results.


'/>"/>

Contact: Krista Hopson
khopson1@hfhs.org
313-874-7207
Henry Ford Health System
Source:Eurekalert

Related medicine news :

1. Speaker series highlights the role of animals in human culture
2. Smoking Scenes in Movies Light Up Smokers Brains
3. Cigarette Ads Do Spur Teens to Light Up, Study Finds
4. Bright Lights at Night May Raise Diabetes Risk
5. Room light before bedtime may impact sleep quality, blood pressure and diabetes risk
6. Study sheds new light on river blindness parasite
7. Scientists shed light on what causes brain cell death in Parkinsons patients
8. Study Sheds Light on Genetic Risk of MS
9. Detecting esophageal cancer with light
10. Pop Stars Use of Salvia Puts Hallucinogen in the Spotlight
11. Research Sheds Light on Starvation Hormone
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2016)... ... ... weekend, from Friday, May 6 - Sunday, May 8, fifteen elite athletes from Team ... Fi Mountain Bike Camp, hosted in conjunction with WTB and Cannondale ... Moeschler, who’ll share pro tips with the injured veterans as they rip down some of ...
(Date:5/5/2016)... Stockholm/San Jose (PRWEB) , ... May 05, 2016 , ... ... the art of self-love. Every day, LELO fans reach out via email, social media ... recurring question keeps upcoming up: “Is the way I masturbate ‘normal’ or ‘correct’?” , ...
(Date:5/5/2016)... ... May 05, 2016 , ... ... laws in all U.S. states and certain Canadian provinces is now available from ... Compensation Research Institute (WCRI). , The report, Workers’ Compensation Laws as ...
(Date:5/5/2016)... ... May 05, 2016 , ... Long Island’s fastest growing ... of noted Long Island eye surgeon, Kathleen Van Valkenburg, MD as part of their ... Jeffrey Martin, MD, medical director and managing partner of North Shore Eye Care. ...
(Date:5/5/2016)... ... May 05, 2016 , ... Standard Process ... professionals across the United States. The whole food nutrient solutions company can help ... giving dog, cat and horse owners’ peace of mind. With the increased support, ...
Breaking Medicine News(10 mins):
(Date:5/4/2016)... 2016 Yissum Research Development ... today that it had signed an exclusive world-wide licensing ... of novel protein degradation and immunomodulatory drugs for cancer ... drug candidates representing first-in-class therapy for hematologic and solid ... The novel technology was developed by ...
(Date:5/4/2016)... May 4, 2016 ... the  "Global Acute Myeloid Leukemia Market and ... their offering.       (Logo: ... Leukemia Market and Competitive Landscape Highlights 2016, ... pipeline products, Acute Myeloid Leukemia epidemiology, Acute ...
(Date:5/3/2016)... Research and Markets has announced the addition ... Outlook 2020" report to their offering. ... has improved significantly in past years due to which ... years. Many cancer drugs have been developed by utilization ... expected to be developed with its help. They are ...
Breaking Medicine Technology: