Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Larynx preservation preferred over total laryngectomy

04.02.2008
Chemoradiation provides for better voice quality for cancer patients

Patients with locally advanced laryngopharyngeal cancers who receive radical chemoradiation have significantly better voice outcomes during the 12 months following treatment when compared with patients who have undergone a total laryngectomy and surgical voice restoration, according to a study in the February 1 issue of the International Journal for Radiation Oncology*Biology*Physics, the official journal of the American Society for Therapeutic Radiology and Oncology.

The conventional treatment for patients with advanced squamous carcinoma of the larynx has traditionally been a total laryngectomy, which is the removal of the voice box, with or without radiation; however, this treatment has several serious side effects, including natural-voice loss, altered food-swallowing function and a permanent opening in the trachea.

Researchers in this study, conducted jointly by the Royal Marsden Hospital Head and Neck Unit and The Institute of Cancer Research, both in London, sought to determine if larynx preservation through chemoradiation would result in improved voice results and serve as a suitable alternative to total laryngectomy, which, in turn, would remove the need for surgery and all of the related potential side effects and risks.

Twenty-one patients, both male and female, with a median age of 65 years old, who were diagnosed with Stage III or IV laryngopharyngeal cancer, were given induction chemotherapy followed by radical chemoradiation. The researchers then used electroglottography – placing electrodes alongside the larynx – to electronically record and analyze the voice function of the patients before treatment and at one, six and 12 months after treatment. This is the first study of its kind to use electroglottography as an assessment technique.

Patients were asked to read a standard passage and pronounce vowel sounds into a microphone that sat at the same distance from the mouth of each patient. The researchers then used these recordings to measure jitter in the voice, maximum phonation time and words per minute.

Single voice recordings were also taken from 21 patients, with a median age of 65 years old, who received a total laryngectomy and surgical voice restoration, as well as from 21 normal controls of the same median age group.

The researchers found that preservation of the larynx through chemoradiation did not always return voice quality to exactly how it was before the tumor was present, but it did provide for significantly better voice outcomes when compared to removing the larynx through surgery. At 12 months after treatment, the patients receiving chemoradiation had normal maximum phonation time and words per minute, but less than normal jitter.

“This study is important because it offers patients reassurance that if they undergo organ preservation, it is statistically proven that their voice will be better than if they undergo surgery. We can reassure patients that their voice is likely to recover from the immediate effects of chemoradiation,” said Kevin Harrington, M.B.B.S., clinical senior lecturer at The Institute of Cancer Research. “This study should also allay the concerns of surgeons that laryngopharyngeal cancer patients cannot be successfully treated with chemoradiation with good functional outcome.”

Beth Bukata | EurekAlert!
Further information:
http://www.astro.org

More articles from Health and Medicine:

nachricht Laser activated gold pyramids could deliver drugs, DNA into cells without harm
24.03.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht What does congenital Zika syndrome look like?
24.03.2017 | University of California - San Diego

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>