Navigation Links
Is Heat From Radiofrequency Exposure Damaging Human Health?
Date:7/5/2011

NEW YORK, July 5, 2011 /PRNewswire/ --


 

The world-renowned International Journal of Hyperthermia has unveiled a new special issue which addresses the thermal aspects of radiofrequency exposure on human health. This special issue resulted from a workshop born out of the controversies surrounding huge growth and use of wireless communication.

In the issue, invited experts further refine a quantitative assessment of the effects of thermal energy on tissue damage, fetal development, immune function and neurocognitive behaviour. The special issue papers are available on:  http://informahealthcare.com/toc/hth/27/4.

One of the key findings of the workshop and research papers is that while radiofrequency exposure standards can surely be refined further, it is fair to say that the present exposure limits set for the general public are far more protective against thermal hazards than recommended limits for the temperature of hot water in the home.

"The purpose of the workshop - and the resulting special issue - was to review current knowledge of the effects of heat on the body that are of potential relevance to setting limits for human exposure to radiofrequency," explains the lead review author, Kenneth R Foster, of the Department of Bioengineering at the University of Pennsylvania. "Thermal damage to the body is clearly a very large topic; our discussion and this special issue focuses on thermal effects that are likely to be relevant to setting radiofrequency exposure limits."

"We examined the most appropriate health endpoints for a given tissue or system, appropriate time periods for acute and chronic exposure, time-temperature thresholds for adverse effects, as well as cost effective and targeted research to help us better understand and define human exposure standards," continued Foster.

"The upshot was that current radiofrequency limits, as recommended by the WHO and adopted by the majority of the world's governments, are - in thermal terms - far below temperatures that could harm the body," says Foster. "Indeed, under ordinary environmental conditions, exposure at the whole body limits for the general public, will lead to no detectable increase in core body temperature due to thermoregulatory responses.

That said, both sets of current guidelines on exposure to radiofrequency are subject to limitations, despite the fact that they form the basis for exposure guidelines throughout most of the world.  The IEEE (Institute of Electrical and Electronics Engineers) and the ICNIRP (International Commission on Non-Ionizing Radiation Protection) limits set out basic restrictions in terms of power absorbed in tissue. However, the biologically significant quantity is the thermal exposure (increase in temperature and duration of exposure to elevated temperature).

Within the human body, time-temperature functions for thermal damage to different tissue types varies widely and current limit definitions are complex and difficult to explain to the public. In addition, new technologies employing high-power mm wave sources are coming into use and the possibility of human exposure to such energy at potentially injurious levels is increasing.

"If the limiting hazards of RF energy are indeed thermal, several questions must be addressed," says Mark Dewhirst, Professor of Radiation Oncology, Pathology and Biomedical Engineering at Duke University. "Are current limits adequate to protect diverse tissues from thermal injury?  Would it make sense to move to a time-temperature based limit?  Are present standards adequately protective for exposures to the types of energy employed by modern electronic devices?"

"The workshop and resulting special issue of the International Journal of Hyperthermia addresses these questions and sets out areas where further research is recommended.

The introductory review article for this special issue of the International Journal of Hyperthermia is available on open access at: http://www.informahealthcare.com/hth


'/>"/>
SOURCE International Journal of Hyperthermia
Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. Multi-Centre European Clinical Trial Shows Advanced Dysplasia and Early Cancer of Esophagus Cured With Combined Endoscopic Resection and Radiofrequency Ablation With HALO Ablation System
2. Researchers Present Safety and Efficacy Results of 429 Patients Treated With Radiofrequency Ablation for Pre-Cancerous Barretts Esophagus
3. Definitive Outcomes of Radiofrequency Ablation for Barretts Esophagus Using the HALO Ablation System Reported at the Digestive Disease Week Meeting for Gastroenterologists and Esophageal Surgeons
4. New AHRQ Study Finds Mixed Evidence on Use of Radiofrequency Catheter Ablation for Treating Atrial Fibrillation
5. Mederi Therapeutics Announces Receipt of FDA 510(k) Clearance for the MDRF1 Radiofrequency Generator
6. Practice Guidelines Confirm Utility of Endoscopic Radiofrequency Ablation (RFA) for the Treatment of Barretts Esophagus
7. EndyMed Medicals Novel Multi-Source Radiofrequency Device Enables Real Time Skin Impedance Measurements
8. Vaccine Study in New England Journal of Medicine Wrong in Concluding Mercury Exposures are Harmless, States SafeMinds
9. Dynavax Begins TOLAMBA(TM) Environmental Exposure Chamber Study
10. HIV Prevention Expert Dr. Timothy Mastro Speaks on Future of Pre-Exposure Prophylaxis at International AIDS Conference
11. New AVAC Report on Pre-Exposure Prophylaxis Calls for Immediate Planning to Anticipate Study Results of Potential New HIV Prevention Option
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/7/2016)... 2016 KEY FINDINGS Patient ... as reducing loss of blood during surgeries, lowering ... rapid recovery after surgeries, and decreasing risks of ... into convective warming system, surface warming systems, and ... the stay at hospitals thus, lowering the healthcare ...
(Date:12/7/2016)... RAPIDS, Mich. , Dec. 7, 2016 A ... being readied for human clinical trials in search of the ... disease following publication of research findings today in the ... "We hope this will be a watershed moment for millions ... M.D., Ph.D. , director of Van Andel Research Institute,s ...
(Date:12/7/2016)... , Dec. 7, 2016 Global ... pulmonary drugs studies the current as well as ... of this report include companies and intermediaries engaged ... drugs and/or drug-device combinations as well as new ... comprises an elaborate executive summary along with a ...
Breaking Medicine Technology:
(Date:12/7/2016)... ... December 07, 2016 , ... Castle Dermatology Institute is now offering liquid ... a more youthful appearance to the face. Dr. Peyman Ghasri and Dr. Pedram Ghasri, ... of other treatments, to rejuvenate and renew the facial appearance. , Sculptra is ...
(Date:12/7/2016)... , ... December 07, 2016 , ... They are musicians ... sisters and wives, brothers and fathers, from New England and around the nation. What ... stigma, and are brought together in a beautiful and compelling new photographic exhibit debuting ...
(Date:12/7/2016)... ... December 07, 2016 , ... The Cliff Hart ... in South Lyon, Dewitt, Williamston, East Lansing, Ann Arbor, and Farmington Hills, is ... for a brain tumor. , Jason Bauer and his family are longtime members ...
(Date:12/7/2016)... ... ... One of two inventors from Glen Burnie, Md., has a granddaughter who uses ... why the co-inventor and I have designed a new and better way to secure ... the patent-pending AV-AIR, a device that serves as an alternative to conventional methods of ...
(Date:12/7/2016)... ... OCTOBER XX, 2016 (PRWEB) (PRWEB) December 07, 2016 , ... ... entitled “Canine Filamentous Dermatitis Associated with Borrelia Infection” reveals that ... was published in the prestigious Journal of Veterinary Science & Medical Diagnosis. , ...
Breaking Medicine News(10 mins):