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Archive for the ‘Medical Research’ Category

November 20th, 2009

Dr. Cheryl Iglesia Advocates Less Frequent Cervical Cancer Screenings

Margarita
Dr. Cheryl Iglesia

Dr. Cheryl Iglesia

On the heels of Breast Cancer Screening guidelines changing back and forth, the Cervical Cancer screenings, Pap Smears, are also changing.

The new guidelines are now recommending women start screening after the age of 21 and less frequently thereafter. Previously, it was encouraged for girls to start screening three months after the first sexual encounter and have regular annual checkups.

Since the Obama Administration stabilized the uproar of breast cancer screening after the age of 50, the panel of obstetrician’s group that proposed the Pap smear guidelines, reassures that it is simply bad timing, and is not related to the Preventative Services Task Force that released the mammography guidelines just two days ago.

Dr. Cheryl B. Iglesia, the chairwoman of a panel in the obstetricians’ group said the latest recommendations had been in the works for several years, “long before the Obama health plan came into existence.’”

Dr. Iglesia called the timing crazy, uncanny and “an unfortunate perfect storm,” adding, “There’s no political agenda with regard to these recommendations.”

Pap smear (cervical-cancer-law.com)

cervical cancer screenings (cervical-cancer-law.com)

The obstetricians’ group feels strongly about the need to cut back on Pap screenings that are more harmful when done too frequently.  The cervix in young women often shows abnormalities that resolve themselves on their own with time.  However, additional procedures done in the cervix leads to new problems that arise during pregnancies.

Still, the new guidelines should be applied to each woman differently.  The fear is that taking emphasis off the importance of testing may backfire on younger girls who have sexual intercourse at the age of 12 or 13.

“I’m concerned that whenever you send a message out to the public to do less, the most vulnerable people at highest risk might take the message and not get screened at all,” said Dr. Carol Brown a gynecologic oncologist and surgeon at Memorial Sloan-Kettering Cancer Center.

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November 19th, 2009

Obama Administration Won’t Change Breast Cancer Screening Policy

diane
(rlv.zcache.com)

(rlv.zcache.com)

Are mammograms unnecessary for women until they turn 50? Have the politics on health care reform gotten in the way of doing what’s best for the prevention of breast cancer? Will this effect insurance coverage for the procedure?

Addressing one of the questions, The Obama Administration announced government insurance programs would continue to cover routine mammograms for women starting at age 40, reports today’s New York Times.

This was in response to the Preventative Services Task Force recommendations that women not start routine mammograms until they are aged 50, instead of 40. The research showed that benefits gained starting at aged 40 were small. The downside of earlier screenings was that they lead to excess biopsies, unnecessary anxiety as well as discovery and treatment of tumors that would not cause problems if left alone.

The Physician Data Query Group, a physician group that evaluates new research on cancer research for the National Cancer Institute, recommended that the task force’s evidence be added to all information passed onto doctors and the public.
Members of the group were frustrated that mammogram screenings had become the center of political debate.

One member of the Physician Date Query, Dr. Russell Harris, a former member of the Preventative Services Task Force, explained that when the old guidelines were released by the task force in 2002 there had been less research on the topic.

According to Vitals.com, Dr. Russell received his medical degree at John Hopkins University and completed his specialty training at Duke University.

The Democrats believe the timing of the study’s release was just another opportunity for Republicans to raise doubts about the health care plan now being prepared for a vote in the Senate. Kathleen Sebelius, the Secretary of Health and Human services, assured the country that their policies remain unchanged on this issue. She pointed out that the task force is an outside independent panel of doctors and scientists who make recommendations but don’t set federal policy.

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November 18th, 2009

Dr. Diana Petitti On Breast Cancer Screening Guidelines Turned Upside Down

diane
Dr. Diana Petitti (sci.asu.edu)

Dr. Diana Petitti (sci.asu.edu)

There are 192,000 new cases of breast cancer and about 40,000 deaths in the United States every year, reports the Wall Street Journal. Women in their 40’s account for at least a quarter of breast cancer diagnoses, 17% of breast cancer deaths, suffer from more aggressive cases and have a higher risk of death according to the Los Angeles Times.

Yet according to new guidelines released Monday by the United States Preventative Services Task Force, women do not need to start regular breast cancer screening until they reach the age of 50. The task force also recommended that these women only require mammograms every two years and that doctors should stop teaching women to examine their breasts on a regular basis.

Just seven years ago the task force recommended that women should have mammograms every one to two years once they turn 40. This influential group, appointed by the Department of Health and Human Services, provides guidelines for doctors, insurance companies and policy makers.

“No one is saying that women should not be screened in their 40’s,” said Dr. Diana Petitti, vice chair of the task force and a professor of biomedical informatics, whose work is followed closely by doctors and insurance companies.

“That change is really a change between doing it routinely and don’t do it routinely. Women 40 and older, should talk to their doctors and decide with them whether or not to put off screening for a few years.”

Dr. Petitti was more explicit about the issue of ‘breast self- examinations’. “Women should know it doesn’t work. Two large studies published since the last guidelines involving 200,000 women in China and more than 100,000 in Russia showed no benefits from breast cancer self examinations.”

mammograms (sedonaobserver.com)

mammograms (sedonaobserver.com)

According to Vitals.com, Dr. Petitti received her medical degree at Harvard University and completed her specialty training at the University Of Colorado School Of Medicine.

The new recommendations would not apply to women with risk factors.  Overall the report stated that the modest benefit of mammograms reduce the breast cancer rate by 15% and must be weighed against the harms, reports The New York Times.

The harms, which loom larger for women in their 40’s than women in their 50’s, are described as false positives that generate anxiety and unnecessary additional tests and biopsies. The harms are nearly cut in half when women begin screenings in their 50’s and have mammograms every other year instead of every year. But the benefits are almost unchanged.

READ MORE ABOUT DR. DIANA PETITTI

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November 17th, 2009

Dr. Roger Blumenthal - Comparing Zetia and Niacin Cholesterol Medications

diane
Dr. Roger Blumenthal

Dr. Roger Blumenthal

Researchers studied two medications that control cholesterol and found that adding an old standby drug, niacin, was superior in reducing buildup in the carotid artery, then Zetia, a newer drug.

The controversial research on cholesterol drugs was published in The New England Journal of Medicine and has the potential to strongly affect which cholesterol drugs will be prescribed in the future.

“It will certainly strengthen the idea that, after you give a statin, as a second agent, you should give a niacin. That is the implication of the study,” said Dr. Roger S. Blumenthal, a professor of medicine at the John Hopkins School of Medicine.

According to Vitals, Dr. Blumenthal received his medical degree at Cornell University and did his specialty training at John Hopkins University.

The results of this relatively small study have become a hot topic among the medical community, reports the New York Times. Some cardiologists praise the study as an indication that the drug companies’ profit, with combined sales of 4.6 billion dollars, is excessive considering the lack of concrete evidence of its benefit on heart health.

It has also attracted the attention of a powerful Republican Senator, Charles E. Grassley, who has been scrutinizing the two recently merged drug companies, Merck and Schering-Plough. But keeping a close eye on the activities of drug companies and their pursuit for profit has become increasingly necessary.

(injuryboard.com)

(injuryboard.com)

According to another New York Times story, the industry has been raising its prices at the fastest rate in years despite their promise to support the healthcare reform bill by shaving 8 billion a year off the nation’s drug’s costs.

The study randomly assigned 208 patients, with heart disease or at risk of heart, a statin and either Zetia or Niaspan. Over the course of 14 months, the bad cholesterol of the patients on Zetia decreased by 19.2 percent, but the patient’s arterial wall thickness stayed the same. In the niacin group, good cholesterol increased by 18.4 percent and the carotid wall thickness decreased.

Dr. Peter S. Kim, President of Merck Laboratories contests the results, saying the research was limited because it did not compare the groups of patients taking a statin and a second drug to a placebo group.

Dr. James H. Stein, a professor at the University of Wisconsin Medical School, sees the study as being especially significant when combined with the results of 30 years of research on the use of niacin. It adds to the weight of evidence that this drug might be instrumental in helping treat patients with heart disease.

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November 15th, 2009

Dr. Anthony Atala Engineering Artificial Penises in Rabbits

Irving

Dr. Anthony Atala is a pediatric urologist at the Wake Forest University Baptist Medical Center’s Institute for Regenerative Medicine. Dr. Atala led a study for engineering artificial penises in rabbits. Researchers used the animals to create the artificial penises and the rabbits used their new organs to father baby rabbits. Even more surprising was that rabbits with the engineered penises attempted to have sex with females within a minute of the time they met and were able to produce offspring.

Dr Atala spoke about this study: “It provides a tailor-made transplant. Once the tissue is there, the body recognizes the tissue as its own. We are seeing babies born with deficient genitalia all the time. That was the inspiration for this work. There are no good options today. Patients with congenital anomalies, penile cancer, traumatic penile injury, and some types of organic erectile dysfunction could benefit from this technology in the future. The process takes six weeks from beginning to end, he said, and there is reason to believe a penis grafted onto a baby would grow with the child.”

Full report is available online in the Nov. 9-13 issue of the Proceedings of the National Academy of Sciences.

 

Dr. Anthony Atala (usnews.com)

Dr. Anthony Atala (usnews.com)

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