Health News Updates

Information from the World Chiropractic Alliance and The Chiropractic Journal
Share

A survey of US primary care physicians shows that many believe their patients are receiving too much medical care. Also, many feel that malpractice reform, realignment of financial incentives, and having more time with patients could reduce pressures on physicians to do more than they feel is needed, according to a recent report in the Archives of Internal Medicine, one of the JAMA/Archives journals.

“Per capita U.S. health care spending exceeds, by a factor of two, that of the average industrialized nation and is growing at an unsustainable rate,” the authors write as background information in the article. “A number of health care epidemiologists and economists, however, have suggested that a substantial amount of U.S. health care is actually unnecessary.” The authors also note that the opinions on rate of care of primary care physicians, whom they acknowledge are the “frontline of health care delivery,” are unknown.

Brenda E. Sirovich, MD, and colleagues from the VA Outcomes Group, White River Junction, Vt., and the Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH, conducted a national mail survey of US primary care physicians identified from a random sample of the American Medical Association Physician Masterfile, between June and December 2009. Of the surveys mailed, 627 physicians participated, for a 70% response rate.

Nearly half (42%) of all survey respondents believe that patients in their own practice receive too much medical care, while only 6% believe their patients receive too little care. Just over half (52%) believe the amount of care received is just right. In addition, 28% of respondents said they personally were practicing more aggressively than they would like, and 29% felt that other primary care physicians in their community were practicing too aggressively.

Forty-seven percent of respondents reported that mid-level primary care clinicians (nurse practitioners, physician assistants) practice too aggressively, and 61% felt that medical subspecialists practice too aggressively. Almost all physicians in the survey (95%) believe that primary care physicians vary in their testing and treatment of patients, and most (76%) were interested in learning how their own practice compared to those of other physicians.

Study participants identified three factors they believe cause physicians to practice too aggressively: malpractice concerns (76%), clinical performance measures (52%) and inadequate time to spend with patients (40%). Eighty-three percent of physicians felt they could easily be sued for failing to order a test that was indicated, while 21% felt that they could be sued for ordering a test that was not indicated.

The authors conclude their results show “physicians are open to practicing more conservatively.” They also note that “physicians believe they are paid to do more and exposed to legal punishment if they do less. Reimbursement systems should encourage longer primary care physician visits and telephone, e-mail and nursing follow-up, rather than diagnostic intensity.”

In an invited commentary published in the same issue, Calvin Chou, MD, PhD, from the University of California and San Francisco Veterans Affairs Medical Center, noted: “implicit in these findings is a kind of trained helplessness – it seems that physicians know they are practicing aggressively but feel they have no recourse.”

SOURCES: Arch Intern Med. 2011;171[17]:1582-1586, Sept. 26, 2011.

Press Release, the American Medical Association.

Share

Yoga classes were found to be more effective than a self-care book for patients with chronic low back pain at reducing symptoms and improving function, but they were not more effective than stretching classes, according to a study published online this week by the Archives of Internal Medicine.

“Despite the availability of numerous treatments for chronic back pain, none have proven highly effective, and few have been evaluated for cost-effectiveness,” the authors provide as background information.

“Self-management strategies, like exercise, are particularly appealing because they are relatively safe, inexpensive, and accessible and may have beneficial effects on health beyond those for back pain. One form of exercise with at least ‘fair’ evidence for effectiveness for back pain is yoga, which might be an especially promising form of exercise because it includes a mental component that could enhance the benefits of its physical components.”

Karen J. Sherman, Ph.D., M.P.H., from Group Health Research Institute, Seattle, and colleagues designed a study to determine whether yoga is more effective than conventional stretching exercises or a self-care book for primary care patients with chronic low back pain.

A total of 228 adults with chronic low back pain were randomized to 12 weekly yoga classes (92 patients) or conventional stretching exercise classes (91 patients), or a self-care book that provided information on causes of back pain and advice on exercising, lifestyle modifications and managing flare-ups (45 patients).

The main outcomes measured were back-related functional status and how much the back pain was bothering the patients. Telephone interviews were conducted at baseline, and at six, 12, and 26 weeks after randomization.

“Back-related dysfunction declined over time in all groups,” the authors report. Compared with the self-care group, the yoga group reported superior function at 12 and 26 weeks (average difference, -2.5 and -1.8, respectively) and the stretching group reported superior function at six, 12 and 26 weeks (-1.7, -2.2, -1.5, respectively). “There were no statistically or clinically significant differences between the yoga and stretching groups” at any time point, the authors note.

“We found that physical activity involving stretching, regardless of whether it is achieved using yoga or more conventional exercises, has moderate benefits in individuals with moderately impairing low back pain. Finding similar effects for both approaches suggests that yoga’s benefits were largely attributable to the physical benefits of stretching and strengthening the muscles and not to its mental components.” The benefits of these approaches may last several months, the authors conclude.

In an accompanying commentary, Timothy S. Carey, M.D., M.P.H., from Sheps Center for Health Services Research, University of North Carolina, Chapel Hill, writes, “The study by Sherman et al in this issue is an excellent example of a pragmatic comparative effectiveness trial.”

“This research now represents best evidence for stretching therapies. Support by payers for these therapies will be very helpful through partial financial support for the classes. Such support will encourage patients to utilize the classes, representing a value-based reimbursement policy.”

“We physicians should refer our patients for exercise, practitioners should work to standardize treatments, and payers should encourage these treatments through minimization of copayments for therapies that have both effectiveness and modest cost. Comparative effectiveness research, when well conducted, can assist us in making these clinical and policy recommendations.”

SOURCE: Archives of  Internal Medicine. Published online, October 24, 2011. doi: 10.1001/archinternmed.2011.524. Abstract

Share

While patients often take drugs to lower stomach acid and reduce the chances they’ll develop ulcers from taking their anti-inflammatory drugs for conditions such as arthritis, the combination may be causing major problems for their small intestines, researchers from McMaster University have found.

A team from the Farncombe Family Digestive Health Research Institute has found those stomach acid-reducing drugs, known as proton pump inhibitors, may actually be aggravating damage in the small intestine caused by the nonsteroidal anti-inflammatory drugs, also known as NSAIDs.

In a study published in the medical journal Gastroenterology, principal investigator John Wallace says the extent of the hard-to-detect damage caused to the small intestine has only recently been discovered through use of small video cameras swallowed like pills.

“Suppressing acid secretion is effective for protecting the stomach from damage caused by NSAIDs, but these drugs appear to be shifting the damage from the stomach to the small intestine, where the ulcers may be more dangerous and more difficult to treat,” said Wallace. He is director of the Farncombe Institute and professor of medicine of the Michael G. DeGroote School of Medicine at McMaster.

He added that the use of probiotics is being investigated as a potential cure for the small intestine damage.

SOURCE: Press release, McMaster University; “Proton Pump Inhibitors Exacerbate NSAID-Induced Small Intestinal Injury by Inducing Dysbiosis.” Gastroenterology, 2011; DOI: 10.1053/j.gastro.2011.06.075. Abstract online

Share

More and more, patients show up to appointments with hypertension expert John Bisognano, MD, PhD carrying bags full of “natural” products they hope will help lower their blood pressure. And like most physicians, Bisognano doesn’t always know if these products will do any good, or if they’ll cause any harm.

“Right now we’re seeing a cultural shift where an increasing number of people want to avoid standard pharmaceuticals,” said Dr. Bisognano, professor of medicine and director of Outpatient Cardiology at the University of Rochester Medical Center. “We’re also seeing a growing number of patients who require a large number of drugs to control their blood pressure and are looking for something else to help manage it.”

In an effort to better educate health care professionals and patients, Bisognano and Kevin Woolf, MD, a cardiology fellow at the Medical Center, conducted the most comprehensive review to date of the evidence behind a wide range of non-drug interventions for the treatment of high blood pressure. The review is featured in the September issue of the Journal of Clinical Hypertension.

“Patients have different backgrounds and different approaches to living their lives,” said Dr. Woolf. “This is where the art of medicine comes in; getting to know patients and what they will and will not embrace can help physicians identify different therapies that suit their patients’ habits and that will hopefully make a difference for them.”

Bisognano, who is a member of the editorial board of the Journal of Clinical Hypertension, and Woolf emphasize that all patients with hypertension should adhere to the low-salt, low fat, high fiber DASH diet, which includes lots of fruits and vegetables, and follow an exercise and weight loss regimen – lifestyle modifications recommended by the American Heart Association. Any alternative options should be considered for use in addition to these lifestyle changes.

Among the alternatives studied were dietary supplements, particularly the coenzyme Q10. Patients with hypertension tend to have lower levels of the enzyme, and a meta-analysis – an overarching analysis of past studies – found that treatment with coenzyme Q10 supplements significantly reduced blood pressure.

Woolf also found that potassium helps lower blood pressure, and there’s evidence that increasing the amount of potassium we get through the foods we eat could carry some of the same mild benefits as taking supplements.

The researchers also examined herbal remedies, identifying mistletoe extract, used in traditional Chinese medicine, as one herb used to treat hypertension. Mistletoe extract reduced blood pressure in animal studies, but Woolf cautions that it may be toxic at high doses. The extract from Hawthorn, a type of tree, is also used, but provides only a slight reduction in blood pressure. Conversely, Woolf uncovered a handful of herbal remedies – St. John’s wort, ephedra/ma huang, yohimbine, and licorice – that may increase blood pressure.

Finally, the researchers looked into acupuncture and meditation and concluded that while there’s no conclusive evidence that either lowers blood pressure, acupuncture does reduce blood pressure compared to placebo in patients also taking anti-hypertensive medications. Other techniques that may provide some benefit include Zen Buddhist meditation and Qi Gong.

Their examination did not include recent research into the ability of chiropractic care to reduce high blood pressure.

SOURCES: University of Rochester Medical Center press release; “Nondrug Interventions for Treatment of Hypertension,” by Kevin J. Woolf and John D. Bisognano. Journal of Clinical Hypertension, September 2011 DOI: 10.1111/j.1751-7176.2011.00524.x Abstract online

Share

It won’t come as a surprise to any wellness professional, but research has now made it official. People can live longer if they practice one or more healthy lifestyle behaviors. That was the conclusion of a study by the Centers for Disease Control and Prevention (CDC). The behaviors studied included not smoking, eating a healthy diet, getting regular physical activity, and limiting alcohol.

During the study period, people who engaged in all four healthy behaviors were 63% less likely to die early, compared to people who did not practice any of the behaviors. Not smoking provided the most protection from dying from all of the causes examined.

“If you want to lead a longer life and feel better, you should adopt healthy behaviors – not smoking, getting regular physical activity, eating healthy, and avoiding excessive alcohol use,” said CDC Director Thomas R. Frieden, MD, MPH.”

People who engaged in all four healthy behaviors were 66% less likely to die early from cancer, 65% less likely to die early from cardiovascular disease, and 57% less likely to die early from other causes compared to people who did not engage in any of the healthy behaviors.

Researchers analyzed data from CDC’s National Health and Nutrition Examination Survey (NHANES) III Mortality Study, a mortality follow-up of NHANES III survey of participants aged 17 years and older recruited from 1988 to 1994 and followed through 2006.

The researchers defined low-risk health behaviors as never smoking, eating a healthy diet, moderate intensity or vigorous intensity physical activity, and moderate alcohol consumption. According to the 2010 Dietary Guidelines for Americans, men should drink no more than two drinks per day; women, one drink per day.

Among people in the CDC study, 47.5% had never smoked, 51% were moderate drinkers, 39.3%  had a healthy diet, and 40.2% were adequately physically active. The percentage of people who reported low-risk behaviors did not differ significantly by gender. Mexican-Americans had more healthy behaviors compared to whites and African-Americans.

The authors noted the challenges in encouraging a large percentage of the US population to adopt a healthy lifestyle. Yet, although studies have shown only a small percentage of people have adopted all of these healthy lifestyle behaviors, significant progress has been made in decreasing the rate of people who smoke. This study adds to the mounting evidence of the substantial gain in life associated with healthy behaviors, and underscores the need for the clinical and public health communities to work together to promote greater adoption of these behaviors.

SOURCES: “Low-Risk Lifestyle Behaviors and All-Cause Mortality: Findings from the National Health and Nutrition Examination Survey III Mortality Study.” American Journal of Public Health; Oct. 2011 Highlights. Online
Press Release: CDC, Aug. 18, 2011.