<?xml version="1.0" encoding="utf-8"?>
<recommendedContent xmlns="http://api.mspoke.com">
    <recommendedItem id="20100101_19_458"
                     title="Calcium Scoring Misses 20% of CAD Cases (CME/CE)"
                     score="0.014"
                     href="http://www.medpagetoday.com/Cardiology/AcuteCoronarySyndrome/tb/18387?impressionId=1265750493178"
                     
      &lt;p&gt;Contrary to guidelines, the absence of coronary artery calcium doesn&apos;t rule out coronary artery disease in symptomatic patients, researchers found in a new study.&lt;/p&gt;
&lt;p&gt;In a multicenter clinical trial, 19% of patients with a coronary calcium score of 0 had stenosis of at least 50% in one or more coronary artery segments, according to Carlos E. Rochitte, MD, of the University of S&amp;#227;o Paulo, Brazil, and colleagues.&lt;/p&gt;
&lt;p&gt;Likewise, 20% of vessels seen to be totally occluded on revascularization had no calcium on scans, they reported in the Feb. 16 issue of the &lt;em&gt; Journal of the American College of Cardiology&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;&quot;The absence of coronary calcification should not be used as a gatekeeper and should not prevent a symptomatic patient from undergoing angiography,&quot; the researchers wrote.&lt;/p&gt;
&lt;p&gt;Currently, American Heart Association/American College of Cardiology guidelines suggest that excluding measurable coronary calcium could serve as an effective filter for sending patients on to invasive testing or admitting them.&lt;/p&gt;
&lt;p&gt;One systematic review of 18 studies had indicated that a zero calcium score had a negative predictive value of 93% for stenosis and a positive predictive value of 68% in symptomatic patients.&lt;/p&gt;
&lt;p&gt;However, in Rochitte&apos;s trial  --  CORE64 (Coronary Evaluation Using Multi-Detector Spiral Computed Tomography Angiography Using 64 Detectors)  --  the negative predictive value of a coronary calcium score of 0 was 68%, while the positive predictive value was 81%.&lt;/p&gt;
&lt;p&gt;Overall sensitivity to predict the absence of significant (at least 50%) stenosis was 45%, while specificity was 91%.&lt;/p&gt;
&lt;p&gt;&quot;This apparent lack of predictive value of a calcium scan should be enough to give a clinician pause,&quot; Rita F. Redberg, MD, of the University of California San Francisco, wrote in an accompanying editorial.&lt;/p&gt;
&lt;p&gt;Whatever the reason for the discrepancy, neither the trial nor the review provided any information on how coronary calcium scans add incrementally to traditional predictors of coronary artery disease, such as clinical assessment and stress testing, she said. Nor would she rule out their use entirely for patients with chest pain.&lt;/p&gt;
&lt;p&gt;&quot;Given the significant &lt;a href=&quot;http://www.medpagetoday.com/Cardiology/AcuteCoronarySyndrome/12732&quot; mce_href=&quot;http://www.medpagetoday.com/Cardiology/AcuteCoronarySyndrome/12732&quot; target=&quot;_blank&quot;&gt;radiation risks&lt;/a&gt; of coronary artery calcium scans, however, clinicians must use extreme caution when ordering such scans,&quot; Redberg cautioned.&lt;/p&gt;
&lt;p&gt;The prospective &lt;a href=&quot;http://www.medpagetoday.com/Radiology/DiagnosticRadiology/11927&quot; mce_href=&quot;http://www.medpagetoday.com/Radiology/DiagnosticRadiology/11927&quot; target=&quot;_blank&quot;&gt;CORE64 study&lt;/a&gt; was originally designed to compare diagnostic performance of CT and invasive angiography in symptomatic patients with suspected coronary artery disease. But it also included a coronary calcium scan up to 30 days prior to conventional angiography.&lt;/p&gt;
&lt;p&gt;Of the 291 patients included in the calcium score analysis (73% male, mean age 59.3), 56% had at least 50% coronary stenosis by conventional angiography and 45% had at least 70% stenosis.&lt;/p&gt;
&lt;p&gt;Calcium score only weakly correlated with the highest degree of coronary stenosis found in a patient. Its ability to predict presence of significant lesions was &quot;moderate&quot; (area under the receiver-operating characteristic curve 0.77, &lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;A non-zero score was associated with 8.1-fold likelihood of having at least 50% coronary stenosis (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001) after adjusting for age, sex, hypertension, dyslipidemia, family history of premature heart disease, diabetes, race, and hospitalization.&lt;/p&gt;
&lt;p&gt;Among the 100 patients who went on to revascularization within 30 days of angiography, 13% had a coronary calcium score of 0, 25% had a score of 1 to 10, and 44% had a score over 10 (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001 for trend).&lt;/p&gt;
&lt;p&gt;The fact that significant coronary artery disease occurred in the absence of calcification in almost 20% of patients should not be surprising, since coronary calcification is thought to occur late in the atherosclerotic process, while obstruction can occur earlier, Redberg asserted.&lt;/p&gt;
&lt;p&gt;The researchers also cautioned that the results would not apply to asymptomatic patients with intermediate risk for events, a group in which a score of 0 has been consistently shown to indicate low risk.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported by grants from Toshiba Medical Systems, the Doris Duke Charitable Foundation, the National Heart, Lung, and Blood Institute, the National Institute on Aging, and the Donald W. Reynolds Foundation.&lt;/p&gt;&lt;p&gt;Rochitte reported no conflicts of interest. Co-authors reported financial relationships with Toshiba Medical Systems, Bayer, Schering, GE Healthcare, Bracco, Bristol-Myers Squibb, sanofi-aventis, and Vital Images.&lt;/p&gt;&lt;p&gt;Redberg provided no information on conflicts of interest.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_457"
                     title="Long-Term Safety of Drug-Eluting Stents Affirmed (CME/CE)"
                     score="0.013"
                     href="http://www.medpagetoday.com/Cardiology/Atherosclerosis/tb/18374?impressionId=1265750493178"
                     
      &lt;p&gt;Using sirolimus-eluting stents for the treatment of in-stent restenosis appears safe and effective over four years of follow-up, a study of an Italian registry showed.&lt;/p&gt;
&lt;p&gt;Through four years, there were low rates of target lesion revascularization (11.1%) and stent thrombosis (2.8%), according to Francesco Liistro, MD, of San Donato Hospital in Arezzo, Italy, and colleagues.&lt;/p&gt;
&lt;p&gt;About one in 10 patients (9.8%) died, and 3.2% had a nonfatal myocardial infarction.&lt;/p&gt;
&lt;p&gt;Survival free from a major adverse cardiac event was 80.3% at the end of follow-up, the researchers reported in the Feb. 16 issue of the&lt;em&gt; Journal of the American College of Cardiology&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;Although drug-eluting stents have been shown to be safe and better than balloon angioplasty and vascular brachytherapy for in-stent restenosis in the short term, most previous studies have had limited follow-up.&lt;/p&gt;
&lt;p&gt;Reports of late stent thrombosis following implantation with drug-eluting stents have raised some concern about the long-term safety of these devices in unselected patient groups, according to Liistro and his colleagues.&lt;/p&gt;
&lt;p&gt;To explore the issue, the researchers turned to the Tuscany Registry of Unselected In-Stent Restenosis (TRUE), a prospective, two-center registry.&lt;/p&gt;
&lt;p&gt;All 244 patients included in the analysis underwent antiplatelet therapy with aspirin and either ticlopidine or clopidogrel (Plavix) for at least six months after the sirolimus-eluting stent was implanted.&lt;/p&gt;
&lt;p&gt;An earlier, nine-month analysis of this registry showed safety and effectiveness for the stent. This study confirmed the benefits through four years.&lt;/p&gt;
&lt;p&gt;Of 24 recorded deaths, 11 were from cardiac causes.&lt;/p&gt;
&lt;p&gt;Definite stent thrombosis occurred in five patients, four of whom had stopped taking clopidogrel more than a month before the event.&lt;/p&gt;
&lt;p&gt;Another two patients who were taking aspirin and clopidogrel had probable stent thrombosis.&lt;/p&gt;
&lt;p&gt;Patients who had diabetes were significantly more likely to have target lesion revascularization (OR 0.32, 95% CI 0.14 to 0.71) and major adverse cardiac events (OR 0.38, 95% CI 0.20 to 0.71) through four years.&lt;/p&gt;
&lt;p&gt;A left ventricular ejection fraction less than 50% was associated with higher odds of major adverse cardiac events (OR 0.32, 95% CI 0.13 to 0.80), as was creatinine greater than 1.5 mg/dL (OR 0.23, 95% CI 0.11 to 0.48).&lt;/p&gt;
&lt;p&gt;And patients with peripheral or carotid arterial disease were more likely to need target lesion revascularization (OR 0.35, 95% CI 0.14 to 0.88).&lt;/p&gt;
&lt;p&gt;The authors noted that the registry study was limited by the lack of valid control groups.&lt;/p&gt;
&lt;p&gt;In addition, in patients with a late occurrence of target lesion revascularization, the researchers could not determine whether a stenotic lesion inside the stented segment was a new atherosclerotic lesion or a restenosis.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The authors did not make any financial disclosures.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_348"
                     title="No Rebound Seen After Antiplatelet Withdrawal (CME/CE)"
                     score="0.01"
                     href="http://www.medpagetoday.com/Cardiology/PCI/tb/18226?impressionId=1265750493178"
                     
      &lt;p&gt;No evidence of a platelet aggregation rebound occurs with abrupt discontinuation of clopidogrel (Plavix) in patients undergoing percutaneous coronary intervention (PCI), investigators in a randomized clinical trial concluded.&lt;/p&gt;
&lt;p&gt;Values for adenosine diphosphate (ADP)-induced platelet aggregation did not differ significantly between patients whose clopidogrel therapy was withdrawn abruptly and those in whom clopidogrel was tapered before discontinuation, they wrote in an article in the Feb. 9 issue of the &lt;em&gt;Journal of the American College of Cardiology&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;The findings also showed that tapering of clopidogrel does not lead to lower platelet aggregation values after clopidogrel withdrawal, according to Dirk Sibbing, MD, of Technical University Munich in Germany, and colleagues&lt;em&gt;&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;&quot;The time course of platelet aggregation values  --  regardless of the device, the agonist, or the agonist concentration used  --  after clopidogrel cessation provides no evidence for the existence of a rebound phenomenon of platelets after discontinuing clopidogrel,&quot; they wrote in conclusion.&lt;/p&gt;
&lt;p&gt;For patients undergoing PCI, dual antiplatelet therapy with aspirin and clopidogrel has become the mainstay for prevention of thrombotic events. Lifelong aspirin therapy is recommended for patients after PCI, but clinical guidelines recommend discontinuation of clopidogrel after six or 12 months. The standard practice is to withdraw clopidogrel abruptly, the authors noted.&lt;/p&gt;
&lt;p&gt;Recent studies have shown a clustering of thrombotic events in the first few weeks after discontinuation of long-term clopidogrel therapy. The observations have led to the hypothesis of a rebound phenomenon of platelet aggregation. However, the hypothesis had not been examined specifically within the context of clopidogrel withdrawal.&lt;/p&gt;
&lt;p&gt;&quot;Because different studies have demonstrated that insufficient suppression of platelet reactivity to ADP is associated with an increased risk of thrombotic events after coronary stent placement, the observed clustering of adverse events reported in clinical studies might be related to an intermittent status of platelet hyperreactivity or so-called platelet rebound with very high ADP-induced platelet aggregation levels,&quot; the authors wrote.&lt;/p&gt;
&lt;p&gt;&quot;A tapering of clopidogrel treatment over a certain period of time before stopping the intake of the drug completely might provide a beneficial treatment strategy to attenuate this supposed rebound phenomenon of platelets.&quot;&lt;/p&gt;
&lt;p&gt;Sibbing and colleagues designed a randomized clinical trial to determine whether a rebound phenomenon exists after discontinuation of clopidogrel and whether the rebound can be attenuated by a clopidogrel-tapering regimen.&lt;/p&gt;
&lt;p&gt;The investigators enrolled 69 patients receiving clopidogrel in association with PCI procedures. In all cases, discontinuation of clopidogrel was planned.&lt;/p&gt;
&lt;p&gt;The patients were randomized to two strategies of discontinuation: tapering of the clopidogrel dose over four weeks, followed by discontinuation; or treatment for four weeks, as planned, followed by abrupt discontinuation.&lt;/p&gt;
&lt;p&gt;Investigators assessed platelet aggregation at enrollment and during weeks two through eight after randomization. Aggregation was assessed simultaneously by light transmission aggregometry (LTA) and multiple electrode aggregometry (MEA).&lt;/p&gt;
&lt;p&gt;The primary endpoint was the highest rate of ADP-induced platelet aggregation by LTA in weeks five through eight after clopidogrel withdrawal.&lt;/p&gt;
&lt;p&gt;Platelet aggregation by LTA peaked at 73% in the group that had clopidogrel abruptly withdrawn and at 69.3% in the tapering group, resulting in a nonsignificant difference (&lt;em&gt;P&lt;/em&gt;=0.21). The between-group values did not differ across the range of ADP concentrations used (1.25 to 20 &amp;#181;mol/L).&lt;/p&gt;
&lt;p&gt;Results by MEA were similar: The peak aggregation value associated with abrupt withdrawal was 925 AU x min compared with 890 AU x min with clopidogrel tapering (&lt;em&gt;P&lt;/em&gt;=0.55).&lt;/p&gt;
&lt;p&gt;Studies with different agonists of platelet aggregation also yielded similar results in the two patient groups.&lt;/p&gt;
&lt;p&gt;Despite finding no difference between the two strategies for clopidogrel withdrawal, the authors did not rule out the possibility of a beneficial effect of tapering clopidogrel.&lt;/p&gt;
&lt;p&gt;&quot;It could be hypothesized that, apart from the maximal values of platelet aggregation observed, a more gradual increase of platelet aggregation values achieved by a clopidogrel-tapering regimen is beneficial for the reduction of thrombotic events,&quot; the authors wrote.&lt;/p&gt;
&lt;p&gt;&quot;In fact, we observed a relatively rapid increase of platelet aggregation values in the [abrupt withdrawal] group of patients in our study. Whether this rapid increase might be disadvantageous in case of stopping clopidogrel treatment remains uncertain.&quot;&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported by Cordis, Medtronic, and Dynabyte.&lt;/p&gt;&lt;p&gt;Sibbing disclosed relationships with Dynabyte and Eli Lilly.&lt;/p&gt;&lt;p&gt;Co-author Adnan Kastrati disclosed relationships with Eli Lilly, sanofi-aventis, and Bristol-Myers Squibb.&lt;/p&gt;&lt;p&gt;Co-author Nicolas von Beckerath disclosed relationships with Eli Lilly and sanofi-aventis.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_352"
                     title="ICAO: Future Chronic Disease Risk Goes Beyond BMI (CME/CE)"
                     score="0.009"
                     href="http://www.medpagetoday.com/Endocrinology/Diabetes/tb/18233?impressionId=1265750493178"
                     
      When it comes to predicting chronic disease, body mass index doesn&apos;t tell the whole story, according to a population-based study that found elevated risk with obesity and other metabolic risk factors independently.&lt;br&gt;
&lt;br&gt;Metabolically-healthy obese people tended toward being at least twice as likely to develop multiple metabolic risk factors and diabetes as healthy, normal weight individuals over the subsequent 3.5 years of a study led by Sarah Appleton, a postgraduate student at the University of Adelaide, Australia.&lt;br&gt;
&lt;br&gt;However, normal weight individuals with metabolic risk factors  --  a group the researchers called &quot;metabolically obese&quot;  --  were at greater risk, she told attendees at the International Congress on Abdominal Obesity in Hong Kong, a conference sponsored by the International Chair on Cardiometabolic Risk.&lt;br&gt;
&lt;br&gt;Overall, just 4.1% of the 3,743 adults in the population-based, North West Adelaide Health Study were in the normal body mass index range at baseline but had at least two of the following metabolic risk factors:&lt;ul&gt; &lt;li&gt;Triglyceride levels of 1.7 mmol/L or greater&lt;/li&gt; &lt;li&gt;HDL cholesterol under 1.0mmol/L for men or 1.3 mmol/L for women&lt;/li&gt; &lt;li&gt;Blood pressure of 130/85 mm Hg or higher&lt;/li&gt; &lt;li&gt;A fasting plasma glucose of at least 5.6mmol/L or self-reported diabetes&lt;/li&gt; &lt;li&gt;Treatment for any of these disorders &lt;/li&gt; &lt;/ul&gt;
&lt;p&gt;Although free of cardiovascular disease when they entered the study through a random population sample of the northwest region of Adelaide, after a mean of 3.5 years of follow-up, this group was 2.48 times at risk of incident cardiovascular disease or stroke events (95% CI 1.1 to 5.4).&lt;/p&gt;
&lt;p&gt;Compared with metabolically-healthy, normal weight individuals, those with metabolic risk factors tended to be&lt;strong&gt; &lt;/strong&gt;3.27 times as likely to develop diabetes (&lt;em&gt;P&lt;/em&gt;=0.07).&lt;/p&gt;
&lt;p&gt;Identifying these individuals for prevention efforts may require less emphasis on BMI and increased surveillance of central obesity in primary care, the researchers told the congress.&lt;/p&gt;
&lt;p&gt;&quot;The problem with BMI is it doesn&apos;t tell you where the fat is,&quot; Appleton added in an interview. &quot;Visceral fat is really bad for you.&quot;&lt;/p&gt;
&lt;p&gt;Obese individuals without multiple metabolic risk factors at baseline comprised a larger group (12.1%).&lt;/p&gt;
&lt;p&gt;They were more likely to be middle age, live in a disadvantaged neighborhood, have smoked at some point, and get less exercise than their metabolically similar, but slimmer peers.&lt;/p&gt;
&lt;p&gt;Over the subsequent 3.5 years, they were 2.82 times more likely to develop more than one metabolic risk factor than metabolically-healthy, normal weight individuals (95% CI 2.0 to 4.0).&lt;/p&gt;
&lt;p&gt;The metabolically-normal obese also tended to be 2.36 times more likely to develop diabetes (95% CI 0.8 to 7.1). On the other hand, their risk of cardiovascular disease wasn&apos;t elevated, &quot;which likely related to the younger age of that group,&quot; Appleton told &lt;em&gt;MedPage Today&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;Notably, abdominal obesity as determined by a waist circumference of 80 cm and over for men or 95 cm and greater for women was 6.1 times more likely among metabolically healthy individuals if their BMI was in the obese versus normal range.&lt;/p&gt;
&lt;p&gt;But those who were in the normal BMI range were 2.2-fold more likely to be overweight or obese according to waist circumference if they had metabolic risk factors, which was statistically significant as well and likely contributed to the health risks they faced over the short-term future, Appleton said.&lt;/p&gt;
&lt;p&gt;Maintenance of metabolic health in the obese population was more likely for younger individuals (OR 2.83 for age 40 or younger, 95% CI 1.1 to 7.6) and those who were at least moderately physically active (OR 2.04, 95% CI 1.01 to 4.1).&lt;/p&gt;
&lt;p&gt;Appleton noted that these findings generally fit with data from the U.S. National Health Assessment Survey and Examination.&lt;/p&gt;
&lt;p&gt;Regardless of whether patients have abdominal obesity, BMI obesity, or other metabolic risk factors, the solution is likely similar  --  improved diet and exercise, she said.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported by the University of Adelaide and the South Australian Department of Health.&lt;/p&gt;&lt;p&gt;Appleton reported no conflicts of interest.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_222"
                     title="Benefits of Cutting Down on Salt Quantified (CME/CE)"
                     score="-0.002"
                     href="http://www.medpagetoday.com/Cardiology/Prevention/tb/18075?impressionId=1265750493178"
                     
      &lt;p&gt;Cutting daily salt intake by 3 grams a day  --  about 30% of the current average  --  could prevent 32,000 strokes and 54,000 myocardial infarctions a year, if a computer model developed by researchers at the University of California, San Francisco accurately depicts the clinical impact of salt reduction.&lt;/p&gt;
&lt;p&gt;The results of the analysis, which used a computer simulation of heart disease in U.S. adults ages 35 to 84, also suggest that even a 1 gram per day reduction in salt over the next decade would be a more cost-effective strategy for treating hypertension than use of even the cheapest antihypertensive, wrote Kirsten Bibbins-Domingo, MD, PhD, and colleagues in a paper published online by the &lt;em&gt;New England Journal of Medicine.&lt;/em&gt;&lt;/p&gt;
&lt;p&gt;Lee Goldman, MD, MPH, of Columbia University, who co-authored the paper, told &lt;em&gt;MedPage Today&lt;/em&gt; that their study builds on what has long been known about the adverse health effects of salt on a society that believes it to be the spice of life.&lt;/p&gt;
&lt;p&gt;For example, Goldman said that most people seeking a healthy choice will check food labels and restaurant menus for calorie counts and trans fats, but will not pay attention to salt.&lt;/p&gt;
&lt;p&gt;This is not the first time a call for salt reduction has been issued. As recently as last November, a meta-analysis published in &lt;em&gt;BMJ &lt;/em&gt;suggested that cutting salt intake in half  --  a reduction of about 5 grams a day or roughly a teaspoonful  --  would lower the stroke rate by 23% and reduce overall cardiovascular disease by as much as 17%.&lt;/p&gt;
&lt;p&gt;Americans, like those in many Western countries, take in an average of about 10 g of salt a day; whereas the World Health Organization recommends only 5 g per day, and the U.S. Department of Agriculture recommends daily intake be limited to 5.8 g.&lt;/p&gt;
&lt;p&gt;Bibbins-Domingo and colleagues reported that a 3 gram per day reduction in dietary salt would &quot;save 194,00 to 392,00 quality-adjusted life-years and $10 billion to $24 billion in healthcare costs annually.&quot;&lt;/p&gt;
&lt;p&gt;In an editorial that accompanied the study, Lawrence J. Appel, MD, MPH, and Cheryl A.M. Anderson, PhD, MPH, of Johns Hopkins University, wrote that &quot;the evidence supporting the call to reduce salt intake as a means of preventing cardiovascular disease is compelling.&quot;&lt;/p&gt;
&lt;p&gt;They concluded with this admonition: &quot;As we deliberate healthcare reform, let us not neglect this inexpensive, yet highly effective public health intervention for the prevention of disease.&quot;&lt;/p&gt;
&lt;p&gt;It should be noted that Appel was also first author on a position paper from the American Society of Hypertension that also called for salt reduction as public policy.&lt;/p&gt;
&lt;p&gt;Franz H. Messerli, MD, director of the hypertension program at St. Luke&apos;s-Roosevelt Hospital and a colleague of Goldman&apos;s, said the computer model used in the study was impressive but probably underestimates the benefit of reducing dietary salt &quot;because salt reduction has been shown to have a direct (blood pressure independent) effect on the heart, the brain, the kidneys, and also reduces stomach cancer and osteoporosis  --  factors that were not considered in this analysis.&quot;&lt;/p&gt;
&lt;p&gt;But Messerli found it difficult to lead the victory parade, noting &quot;this is a modeling study and statements such as &apos;A modest reduction of 1 gm per day would be more cost-effective than using medication to lower blood pressure in all persons with hypertension&apos; are to be taken with a good grain of salt.&quot;&lt;/p&gt;
&lt;p&gt;Messerli&apos;s measured response was not echoed by his colleagues in the hypertension world.&lt;/p&gt;
&lt;p&gt;For example, Henry Black, MD, president of the American Society of Hypertension, and director of hypertension research at the New York University School of Medicine said that, although the paper extended the findings of many other studies, it is &quot;more comprehensive and is especially useful by comparing the benefits of [sodium] and [salt] reduction to those of other widely accepted public health approaches that the public and governmental bodies have embraced, including drug treatment.&quot;&lt;/p&gt;
&lt;p&gt;Clyde Yancy, MD, president of the American Heart Association, said that while the study was a computer modeling analysis that may be as good as it gets because &quot;it would be impossible to do a randomized trial in large numbers of high versus low sodium consumption, and the use of modeling with reasonable assumptions represents a solid if not ideal alternative.&quot;&lt;/p&gt;
&lt;p&gt;Moreover, Yancy argued that &quot;the costs and effort involved in setting and/or changing policy&quot; require strong imperatives, and he thought the data reported today &quot;provide that imperative.&quot;&lt;/p&gt;
&lt;p&gt;Three grams of salt comes to about a teaspoonful, but Goldman said it was foolish to think of sodium reduction in terms of such measurements because so much sodium comes from processed foods and from restaurant food. Achieving the needed reduction requires a concerted national effort.&lt;/p&gt;
&lt;p&gt;Bibbins-Domingo noted that their study was limited &quot;by any uncertainty concerning the data entered into the model.&quot;&lt;/p&gt;
&lt;p&gt;Also they noted that they did not &quot;account fully for the possible effects of salt reduction that are unrelated to control of blood pressure  --  for example, potential improvements in outcomes for the increasing numbers of patients with heart failure or prevention of other serious conditions, such as end-stage renal disease.&quot;&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported in part by a grant from the American Heart Association Western States Affiliate and a grant from the University of California, San Francisco Clinical and Translational Sciences Institute.&lt;/p&gt;&lt;p&gt;The authors said they had &quot;no potential conflicts of interest relevant to this article.&quot;&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;&lt;p&gt;&lt;em&gt;This article was developed in collaboration with ABC News. &lt;/em&gt;&lt;img src=&quot;http://www.medpagetoday.com/upload/2009/10/1/14357_1.jpg&quot; mce_src=&quot;http://www.medpagetoday.com/upload/2009/10/1/14357_1.jpg&quot; alt=&quot;&quot;&gt;&lt;/p&gt;
    </recommendedItem>
</recommendedContent>