Cancer Detection Through Mobile Phones

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Bangalore, August 29, DHNS:
Nearly eight lakh new cancer cases are reported every year in India and 75 per cent of the cases are discovered at an advanced stage due to late detection and inappropriate treatment.
To encourage early detection, Mazumdar Shaw Cancer Centre (MSCC) in Narayana Hrudayalaya Health campus, along with SANA, a research group under Harvard Business School and MIT, has launched ‘mhealth’ that uses mobile phone to detect cancer.

Incidentally, the person from Harvard who co-created the software with MIT student Russell Ryan is Sidhant Jena, an Indian.

Elaborating on the technology, MSCC medical director Dr Paul Salins said the SANA software has certain automated questionnaires which are directed to the patient by a health worker.

If most of the questionnaires are answered in the affirmative, the health worker will then take high quality lesion picture using the phone camera. The condition will be diagnosed either using the software’s decision support algorithms or by uploading the data to the Centre’s EMR system for the specialists to take a look at it. If the lesion is malevolent then an appropriate treatment is recommended to the person.

“Most patients come to us with stage four tumours that are expensive to treat. However, if cancer is detected early, not only can it be properly treated but will also be economical for the patient. In fact, the treatment would come within the government’s insurance scheme,” said Dr Salin. He added that same system could be used for ECG and other chronic diseases.

Pilot project

The technology was put to use in Belgaum, Raichur and some parts of Bangalore over six months to diagnose oral cancer.

In these health camps, the Centre detected 20 cancer patients. Around the same time, the Centre also worked with KLE Dental Hospital, Bangalore, and Navodaya Medical College, Raichur, where general physicians, nurses and medical students were trained to use the software.

In total, nearly 400 high risk cancer patients were screened during this period. As many as 20 ASHA workers in Belgaum were given mobile phones with SANA software to conduct the screening. Dr Salins stressed that the software could be downloaded in any model of mobile phones.

The Centre now plans to rope in couple of medical colleges in Bangalore and Kolar and train the staff to use mhealth.

In Bagalkot, it has joined hands with Bill and Melinda Gates Foundation, which has a strong presence in the district through its HIV/AIDS programme. “The foundation has agreed to include cancer screening while doing door-to-door survey,” he said.

Bone marrow cell

The Centre is also in the process of constructing the largest bone marrow transplant unit in the premises. The unit is to come up in about nine months.

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Cell Phone Study Was Flawed, Say Some Experts Part 1

Cell Phone Radiation, Cell Phone Radiation ProtectionCell Phone Study Was Flawed, Say Some Experts Part 2

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August 30, 2011| Roxanne Nelson

The use of cell phones, and their possible detrimental effect on human health, is an issue that remains unresolved. A recent study, published in the Journal of the National Cancer Institute (2011;103:1264-1276), concluded that children and adolescents who use cell phones are not at an increased risk for brain tumors, but several experts are disputing these findings.

A report issued by L. Lloyd Morgan, BSc, senior research fellow at the Environmental Health Trust, and colleagues found that rather than showing no risk for brain tumors, the study’s results indicate that an increased risk for brain cancer is a “major concern.”

Mr. Morgan and coauthors Ronald Herberman, MD, director of the University of Pittsburgh Cancer Institute and the UPMC Cancer Center, in Pennsylvania, and Devra Davis, PhD, MPH, president of Environmental Health Trust, note that the study’s results are flawed and mislead the public. They explain that these errors should have been picked up during the peer-review process and by the journal, because the results and conclusion sections of the paper contradict the actual reported results.
Several cell phone companies provided funding for this study, and some of the study’s authors are known to be linked to industry and to other research that supports the interests of the industry, the report points out.

“The accompanying editorial was also written by 2 people who have worked for the cell phone industry,” Dr. Davis told Medscape Medical News, “but there were no disclosures about that in their paper” (J Natl Cancer Inst. 2011;103:1211-1213).
“This study is not up to the usual quality seen in the Journal of the National Cancer Institute, and it seems that it was rushed into print,” she said.

Not Likely in Young Children
The study in question, known as CEFALO, was an international case–control study that examined the association between cell phone use and the risk of developing brain tumors in children and adolescents. The participants were children 7 to 19 years of age in Denmark, Sweden, Norway, and Switzerland who were diagnosed with a brain tumor from 2004 to 2008.

The authors conducted face-to-face interviews with 352 case patients, 646 control subjects, and their parents. Cell phone use was determined from interviews and, when available, from operator records.

In the paper, the authors conclude that their primary analysis “does not point to a statistically significantly increased risk for brain tumors in children that is associated with the use of [cell] phones.” They add that there was also no consistent exposure–response relation, either in terms of the amount of cell phone use or by the location of the tumor.

“It is ridiculous to look at cell phone use in a 7 year old.”
However, Dr. Davis pointed out that they weren’t likely to find an association between cell phone use and brain cancer in young children because brain tumors can take 10 or more years to form. “Young children have not been heavy users of cell phones for that long,” she said. “It is ridiculous to look at cell phone use in a 7 year old. What were they, 2 years old when they started using their cell phones?”

The use of cell phones has also quadrupled in the past few years, and this study could not possibly capture that, Dr. Davis explained.

“The authors were careful to note limitations,” she added, but it was the invited editorial that stated that children face no risks from cell phones. “Public health is not well served by this.”
Dr. Davis also emphasized that aside from brain tumors, other studies have linked cell phones to serious health risks in children, including learning problems, autism, behavioral impacts, insomnia, attention disorders, and a broad array of disturbances to the developing nervous system.

Problems in the Report
Another expert, Joel Moskowitz, PhD, director of the Center for Family and Community Health at the University of California, Berkeley, agrees that the findings of the study have been downplayed. “This report and the editorial are another example of biased reporting,” he said in an interview. “The results actually verify higher tumor risks for children but the findings are downplayed. They dismiss any evidence or prior evidence of increased risk and harm, and then the media plays it out as either being not conclusive evidence or no evidence.”

Dr. Moskowitz noted several glaring problems with the study, which are in line with the findings of Mr. Morgan and colleagues.
“In a subset of patients who had cell phone records available, there was more than a doubling of risk,” he said.

That finding was also noted by the study authors, who reported that they found a “statistically significantly increased risk among users with the longest period since first subscription (odds ratio [OR], 2.15) among 24 case patients and 25 control subjects who had subscriptions for more than 2.8 years.”

The authors dismissed this finding because it was based on a subset of the data, explained Dr. Moskowitz, and they had other data that were not statistically significant so they chalked this up to a chance finding.

The follow up to the study was also too short to expect much of an increase in brain tumor risk, he continued. “Only 13% of the sample had used cell phones for more than 5 years, yet brain tumors generally take decades to develop,” Dr. Moskowitz said. “The study should have probably just focused on teens and not included young children.”

Another problem was the size of the study. The sample size was too small, limiting the study’s ability to detect an association between cell phone use and brain tumors, he pointed out. The study was originally designed to have 550 cases, but ultimately only 356 cases were included. As designed, the study would have been able to detect a 35% increased brain tumor risk; as implemented, it could only detect a 45% increased risk as statistically significant.

“This means if the investigators had 550 cases in the study and the overall result was similar, then the 36% increase in brain tumors reported for regular cell phone users would most likely have been statistically significant,” said Dr. Moskowitz.
Also, the definition of “regular user” was problematic. The study authors defined “regular” cell phone use as using the device once a week for 6 months. “That’s a very low threshold of use,” he said. “These kids are not regular cell phone users. Most of the sample used less than 100 hours in their lifetimes, but there was still a high risk.”

Only 13% of the cohort had used cell phones more than 144 hours in their lifetime, Dr. Moskowitz added. “The typical child in the United States reaches that amount in less than a year, so this study really isn’t applicable to children and teens in the United States.”

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