Tag Archives: jama

Two studies on the use of breast MRI

Study Finds Use of Breast MRI in Women Increasing The overall use of breast magnetic resonance imaging has increased, with the procedure most commonly used for diagnostic evaluations and screenings, according to a study published by JAMA Internal Medicine, a JAMA Network publication. While breast MRI is being used increasingly, its sensitivity leads to higher false-positive rates and it is also more expensive…

High variability among primary care physicians in rate of PSA screening

Using complete Medicare Part A and B data for Texas, the researchers selected PCPs whose patient panels included at least 20 men 75 years or older without a prior diagnosis of prostate cancer. Primary care physicians were identified as generalist physicians who saw a man on 3 or more occasions in 2009. PSA screening rates for 2010 were estimated…

Chemotherapy drug improves survival following surgery for pancreatic cancer

"Pancreatic cancer is a disease with a poor prognosis, mainly because of the inability to detect the tumor at an early stage, its high potential for early dissemination, and its relatively poor sensitivity to chemotherapy or radiation therapy," according to background information in the article. Even after complete removal of the tumor, the vast majority of patients relapse within 2 years, leading to a 5-year survival rate of less than 25 percent. No consensus has been reached on a standard treatment approach for additional therapy…

Decision aids reduce men’s conflict about PSA screening, but don’t change their decisions

That’s the finding of a new study published today in JAMA Internal Medicine that examined both web-based and printed tools aimed at helping men make informed decisions about PSA testing. In May 2012, the US Preventive Services Task Force recommended against screening all men for prostate cancer. Most health professional groups recommend shared decision making so that men can understand the limitations of screening before making a decision about being tested. …

Major study examines meat-diabetes link

People who increased their consumption of red meat during a four-year period were more likely to develop Type 2 diabetes in a subsequent four-year period, according to an analysis involving about 150,000 people. The analysis, led by researchers at the National University of Singapore, took data from three long-running Harvard University studies involving mostly nurses and doctors. The results were published online Monday in JAMA Internal Medicine, a journal of the American Medical Association. The studies were funded by grants from the National Institutes of Health. While prior studies have also found a link between red-meat consumption and the development of Type 2 diabetes, the new analysis is believed to be the first time researchers have tracked changes in red-meat consumption over time with the risk of developing Type 2 diabetes. Study participants filled out detailed questionnaires about the types of food and drinks they consumed at the beginning of the study and every four years. The analysis looked at some 20 years of data. Broadly, the study showed that, compared with a group of people who had no change in red-meat intake, increasing red-meat consumption by more than a half-serving per day over a four-year period was associated with a 48 percent increase in the risk of developing Type 2 diabetes during the next four years. However, reducing red-meat consumption by the same amount during the same time period didn't cut the risk of diabetes during the next four years. It did reduce the risk by 14 percent over a longer time period, though. The changes were independent of other factors such as body weight and overall diet quality. “Our results confirm the robustness of the association between red meat and [Type 2 diabetes prevention] and add further evidence that limiting red-meat consumption over time confers benefits for…prevention,” the study authors wrote. An Pan, an assistant professor at the National University of Singapore's Saw Swee Hock School of Public Health, was the study's lead author. Other doctors say red meat in and of itself isn't necessarily the trouble. “It is not the type of protein (or meat) that is the problem; it is the type of fat,” said William J. Evans, who is affiliated with both Duke University and GlaxoSmithKline PLC., and who wrote a commentary about the study that was also published online in JAMA Internal Medicine. “It's mischaracterizing red meat as high fat,” Evans said in an interview. He said consumers could choose lean cuts of red meat such as sirloin tips or round steak over high-fat cuts like rib-eye. Dr. Pan could not be reached for comment Monday. Click for more from The Wall Street Journal.source : http://www.foxnews.com/health/2013/06/18/major-study-examines-meat-diabetes-link/

Very high prevalence of chronic health conditions among adult survivors of childhood cancer

"Curative therapy for pediatric malignancies has produced a growing population of adults formerly treated for childhood cancer who are at risk for health problems that appear to increase with aging. The prevalence of cancer-related toxic effects that are systematically ascertained through formal clinical assessments has not been well studied…

Medical marijuana laws and treats may send more kids to ER

CHICAGO – & Increased use of medical marijuana may lead to more young children getting sick from accidentally eating food made with the drug, a Colorado study suggests. Medical marijuana items include yummy-looking gummy candies, cookies and other treats that may entice young children. Fourteen children were treated at Colorado Children's Hospital in the two years after a 2009 federal policy change led to a surge in medical marijuana use, the study found. That's when federal authorities said they would not prosecute legal users. Study cases were mostly mild, but parents should know about potential risks and keep the products out of reach, said lead author Dr. George Sam Wang, an emergency room physician at the hospital. Unusual drowsiness and unsteady walking were among the symptoms. One child, a 5-year-old boy, had trouble breathing. Eight children were hospitalized, two in the intensive care unit, though all recovered within a few days, Wang said. By contrast, in four years preceding the policy change, the Denver-area hospital had no such cases. Some children came in laughing, glassy-eyed or “acting a little goofy and `off,”' Wang said. Many had eaten medical marijuana food items, although nonmedical marijuana was involved in at least three cases. The children were younger than 12 and included an 8-month-old boy. The study was released Monday in JAMA Pediatrics. Eighteen states and Washington, D.C., allow medical marijuana, though it remains illegal under federal law. Colorado's law dates to 2000 but the study notes that use there soared after the 2009 policy change on prosecution. Last year, Colorado and Washington state legalized adult possession of small amounts of nonmedical marijuana. Some states, including Colorado, allow medical marijuana use by sick kids, with parents' supervision. In a journal editorial, two Seattle poisoning specialists say that at least seven more states are considering legalizing medical marijuana and that laws that expand marijuana use likely will lead to more children sickened.source : http://www.foxnews.com/health/2013/05/27/medical-marijuana-laws-and-treats-may-send-more-kids-to-er/