Histopathological and ultrastructural effects of cutting radiofrequency energy on palatal soft tissues: a prospective study.
Summary of "Histopathological and ultrastructural effects of cutting radiofrequency energy on palatal soft tissues: a prospective study."
Radiofrequency (RF) surgery has gained popularity as a safe and effective method for treating patients with snoring and mild obstructive sleep apnoea (OSA). Both interstitial and cutting radiofrequency energy may be used for multi-segmental management of the upper airway. Little is known about the effect of cutting radiofrequency energy on human soft palate. Excessive collateral injury may have an impact on tissue healing and functional outcomes. A histological analysis of specimens of human soft palate and uvula following resection with cutting RF energy was performed. In addition, ultrastructural analysis using scanning electron microscopy of excision margins was performed and compared with CO(2) LASER. Twelve patients were included. In ten patients, specimens of redundant uvula and faucial pillars were collected and underwent formal histological analysis. The maximum depth of tissue injury was 1 mm in two specimens and overall average depth of injury was 0.15 mm. Injury depth was independent of tissue subtype at the resection margin. Ultrastructural analysis demonstrated accurate incision when compared to CO(2) LASER. Cutting RF energy causes minimal collateral injury to the soft palate during resection for the treatment of snoring and mild OSA. A detailed knowledge of local effects on resection specimens allows accurate inference of in vivo tissue injury at the resection margin and may enable more precise prediction of healing patterns and repair.
Affiliation
Royal National Throat, Nose and Ear Hospital, 330 Gray's Inn Road, London, WC1X 8DA, UK, paulstimpson@doctors.org.uk.
Journal Details
This article was published in the following journal.
Name: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (
ISSN: 1434-4726
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21594723
- DOI: http://dx.doi.org/10.1007/s00405-011-1634-7
Medical and Biotech [MESH] Definitions
Palatal Neoplasms
Tumors or cancer of the PALATE, including those of the hard palate, soft palate and UVULA.
Magnetic Resonance Imaging
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
Bioelectric Energy Sources
Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.
Energy Transfer
The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.
X-rays
Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release radiant energy. X-ray wavelengths range from 1 pm to 10 nm. Hard X-rays are the higher energy, shorter wavelength X-rays. Soft x-rays or Grenz rays are less energetic and longer in wavelength. The short wavelength end of the X-ray spectrum overlaps the GAMMA RAYS wavelength range. The distinction between gamma rays and X-rays is based on their radiation source.
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