Bad habits, non-cholesterol risk factors in youth linked to fatty plaques
...l levels and heart disease may have given some the false idea that other risk factors are unimportant. Weve probably under-emphasized non-lipid risk factors," says Henry C. McGill Jr., M.D., the studys lead author and senior scientist emeritus at the Southwest Foundation for Biomedical Research in San Ant...High-tech scan for blocked arteries matches conventional tests in finding root of symptoms
...he test found real plaques and how often it gave a false positive, depending on how the EBCT machines were ... from missing plaques but also raising the risk of false positives to nearly 50 percent. Other settings can minimize the risk of false positives but also red...NIDA and partners announce national initiative on prescription drug misuse and abuse
...tential drug interactions. They can also check for false or forged prescriptions. Patients should make sure they know how to use their medication, and should always talk to their doctor or pharmacist before increasing, decreasing, or stopping any medication. "Attention must now be paid to the long neglect...Not all allergy tests are created equal, study suggests
...tients, she said. For example, false positive results could lead doctors to treat patients for a specific allergy when the symptoms are really caused by something else. "Misdiagnosing patients can result in unnecessary treatmen...... of probability, the odds of misinterpretation and false alarms rise. Two German psychologists have found a better way to teach basic statistical concepts, based on the way people naturally weigh the odds. This approach can help patients, and the doctors who advise them, more accurately assess the meanin...Gasoline additive interferes with alcohol breath analyzers
...ive, methyl tert-butyl ether (MTBE), can trigger a false positive reading on some breath-alcohol analyzers ...TBE exposure on its own is not enough to trigger a false positive reading of .10, explains Dr. Buckley. New Jersey state officials first raised the question ...Early promise of non-invasive test for colorectal cancer
...les was derived from a patient with cancer, and no false positive results were observed in patients without.... The high specificity of the analysis, with zero false positives, was very encouraging. We hope that this approach will provide an important addition to t...New medical system for colon cancer screening
...r harsh bowel cleansing and significantly reducing false positives. The visualization software, running on a PC, allows physicians to interactively navigate through the colon. An intuitive user interface with customized tools supports virtual biopsy to inspect suspicious regions. Clinical studies demonstra...Blood lactate measurement could lead to earlier identification of patients for liver transplant
...nsitivity of 67%, and a specificity of 95% (ie, 5% false results). The combination of early and postresuscitation lactate concentrations had predictive ability similar to the KCH criteria, but identified non-surviving patients earlier (4 hours compared with 10 hours). Julia Wendon comments: On the basis of...American Thoracic Society Journal news tips for February (second issue)
...positive. The investigators alsofound a very high false negative rate of 26 percent missed during the baseline scan. Twenty two of the patients with identified cancers underwent curative surgical removal, and seven benign nodules were also removed. Participants in the study were asymptomatic men and wom...UCSF study shows breast cancer screening programs that interpret the most mammograms
...s cited for the relative acceptance in the U.S. of false positives. This study maintains that minimizing false positives has not been shown to be associated with a lack of thoroughness in detecting cancer. The b...Screening the controversy continues
...breast cancers could be missed and this could give false reassurance to women who might therefore delay going to their doctor if they subsequently developed symptoms. "Women must be properly informed about the benefits and disadvantages so they can decide for themselves whether they want to be screened. Wh...Over a quarter of interval cancers could have been detected during screening
... high a recall rate in screening in order to avoid false positive results. So the fact that retrospectively the radiologists detected 27% of previously undetected cancers does not necessarily mean that they were missed. The figure of 27% corresponds to about 5% of the total number of breast cancers detec...Psychologists hunt for new ways to detect precursors to Alzheimer's Disease
...ive power of cognitive profiling in AD to minimize false positives. Jacobson et al. comment that genotype (carrying a certain allele, or type of gene, associated with AD) is consistently a more accurate predictor than asymmetry. However, genotype may be superior for evaluating disease incidence (rate at ...Jefferson trial looks to improve diagnosis of prostate cancer
... and the digital rectal examination, often turn up false positives. The digital rectal exam, in particular, is simple and inexpensive - and subjective and inexact. And screening studies can't pinpoint a cancer's exact location. As a result, biopsies of the prostate are performed on areas that are only best...Lonely people face higher risk of heart disease
...and giving a speech to defend themselves against a false accusation of stealing. Blood pressure before and during these stress-inducing tasks rose similarly for both the lonely and non-lonely students. However, lonely students had significantly higher vascular resistance and lower cardiac output than non-l...Research presentations at scientific meetings often receive unwarranted media coverage
... at this early stage may leave the public with the false impression that the data are in fact mature, the methods valid, and the findings widely accepted. As a consequence, patients may experience undue hope or anxiety or may seek unproved, useless, or even dangerous tests and treatments," they add. "In th...Dartmouth/VA researchers examine news coverage of breast cancer prevention
... tamoxifen stories. Most commonly noted harms were false positive, false negative; few stories mentioned over-diagnosis. 90% of the tamoxifen stories mention the potential h...Cervical tissue changes may explain false negative pap smears
LOS ANGELES, June 18- Some women may be getting false negative results on their routine Pap tests- the t...st this explanation for the frequent occurrence of false negative Pap smears. Nationwide, physicians perform about 55 million Pap tests every year to look fo...Kytril more effective in controlling chemotherapy induced nausea and vomiting
... due to financial considerations, may in fact be a false economy, both in terms of cost and patient benefits.2 "Because of cost, clinicians often prescribe antiemetics at doses lower than those indicated. However, the evidence from my review suggests that when clinicians vary the dose, the patients don't ...