Electricians do it better 1

Electrophysiologists do it better— at least when it comes to implanting ICDs, according to a large registry report published in JAMA.

71% of implantations were performed by electrophysiologists, according to the study of more than 111,000 procedures reported to the ICD Registry. There were more complications and lower likelihood of receiving a CRT-D device when indicated when the procedure was performed by non-EPs.

In an accompanying editorial, James Coromilas writes that “a compelling argument can be made” that “whenever possible, a board-certified electrophysiologist should be implanting ICDs.”
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Bring it on! Stanford cardiology fellows challenge 49ers to push-up contest 1

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We couldn’t overlook a recent Stanford University Medical Center press release. In what may be the ultimate geek versus jock competition, the Stanford cardiology fellows have challenged the San Francisco 49ers to a push-up contest to help raise money for hypertrophic cardiomyopathy. We have been unable to confirm rumors that television executives are already planning a reality TV show spinoff…

Click to read the Stanford press release…

STEMI networks key to rapid reperfusion Reply

The best way to consistently deliver rapid primary PCI is through organized regional networks combining paramedics, emergency departments and cardiology teams, according to a new study published in the Journal of the American College of Cardiology: Cardiovascular Interventions.

“Whether it was big cities like Los Angeles or smaller towns like Medford, Oregon, the creation of these networks was feasible,” said Ivan Rokos, in a press release. “Common to each region was a spirit of multi-disciplinary collaboration, often initiated by a small group of visionary healthcare providers, who saw new opportunities to improve STEMI heart attack care in their communities.”
Click to read the JACC:Cardiovascular Interventions press release…

JACC white paper clarifies role of cardiovascular MR in myocarditis Reply

Cardiovascular magnetic resonance (CMR) may have an important role to play in the diagnosis of myocarditis, according to a white paper published in the Journal of the American College of Cardiology.

The  International Consensus Group on Cardiovascular Magnetic Resonance in Myocarditis writes in their conclusion: “The use of CMR appears suitable to identify patients with significant ongoing inflammation, which may be especially important for patients with recurrent or persisting symptoms and in patients with new onset heart failure.”
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JAMA imbroglio: the shrink strikes back 1

Robert Robinson is the psychiatrist who failed to disclose a conflict of interest in a JAMA article and thereby sparked an imbroglio that quickly expanded beyond the initial subject. The story’s focus soon shifted to the JAMA editors for their ham-fisted handling of the episode, especially after they had a series of contentious conversations with their critics and a Wall Street Journal reporter. (See our previous coverage herehere, and here.) Now Robinson has presented his own perspective on the controversy in a letter in BMJ.

Robinson apologizes for the failure to disclose but makes a reasonable case that it was an honest error:
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COURAGE & OAT: persistent doubts among interventionalists Reply

It will come as little surprise to readers of this blog that the COURAGE and OAT trials were not exactly welcomed with open arms by the interventional community. An innovative study published in the American Heart Journal helps quantify and characterize this dissent by analyzing articles that cited the studies. The details of their methods are complex, but I imagine their finding will not provoke much disagreement: 19% of articles citing COURAGE and 15% of articles citing OAT “had an overall reserved stance,” according to the authors. Most of the criticism was written— again, this should not be a surprise— by interventional cardiologists.

It’s unclear whether this level of resistance is too high or too low. As John French and Jennifer Shearer write in an accompanying editorial:

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MR angiography continues to advance, but still limited Reply

Coronary magnetic resonance angiography (CMRA) continues to make broad advances but is still not ready for routine clinical usage, according to a new study published online in the Journal of the American College of Cardiology.

The new study reports on the single-center experience with a new 3.0 tesla contrast MRA in 96 patients scheduled for conventional angiography. The procedure was successfully performed in 62 patients. CMRA correctly identified CAD in 32 patients and ruled it out in 23 patients. Here are the results on a per-patient basis:
Click to continue reading, and for commentary from PK Shah…

GISSI-AF: valsartan fails to prevent AF recurrence Reply

The angiotensin II-receptor blocker (ARB) valsartan failed to prevent the recurrence of atrial fibrillation in 1,442 patients enrolled in the GISSI-AF study. “Our findings do not support the original hypothesis of a beneficial role of blockers of the renin–angiotensin–aldosterone system in the prevention of recurrent atrial fibrillation,” wrote the GISSI investigators. The results of GISSI-AF were published in the New England Journal of Medicine.

But ARBs may still prove valuable in the primary prevention of AF, according to Anne Gillis in an accompanying editorial.
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Cardiology residencies: a tale of two houses Reply

We couldn’t help but notice two stories today about cardiologists and their houses in local media:

You can also read our story from January about the saga of another stent pioneer, Julio Palmaz, and his attempt to build a 100,000 square foot underground tunnel for his vineyard in Napa Valley.

Study finds no benefit in routine screening for asymptomatic type 2 diabetics 1

Routine screening for CAD in asymptomatic type 2 diabetics is not warranted, according to a new study in JAMA that was also presented this morning at a JAMA news conference.

“Rather than viewing this study as a negative screening study, clinicians might consider the results as a positive message: patients with type 2 diabetes without symptoms to suggest CAD, receiving contemporary medical care, close follow-up, and appropriate diagnostic evaluation for symptoms of ischemia have relatively favorable outcomes in the current era,” said Frans J Th Wackers, in a JAMA press release.

In the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study, Wackers and colleagues randomized 1,123 type 2 diabetics to MPI screening or no screening. After 4.8 years of followup there were no significant differences between the two groups in the incidence of nonfatal MI and cardiac death. In the first 120 days the rate of coronary angiography was 4.4% in the screening group versus 0.5% in the unscreened group.

Click for commentary from PK Shah and William Boden, and to read the JAMA press release…

Heart failure more likely in CAD patients who are depressed 1

Patients with coronary artery disease are more likely to develop heart failure if they are depressed, according to a new study published in the Journal of the American College of Cardiology. Taking antidepressants, however, did not appear to mitigate the risk, according to Heidi May, one of the study authors.

“This finding may indicate that antidepressants may not be able to alter the physical or behavioral risks associated with depression and heart failure, despite a potential improvement in depressive symptoms,” said May.
Click to continue reading and to read the ACC press release…

Statins may have caused the financial breakdown, according to (completely unreliable) experts 14

In addition to all the good press, statins have also taken a number of hits, but a recent article may have reached a new low by blaming statins for the financial breakdown. Here is how the article, Cholesterol Contrarians Question Cult of Statins, begins:

The near-breakdown of the international financial system and the deep recession it helped create has been attributed to many causes….
Now, a Florida physician proposes an alternative explanation. Perhaps many of those supposedly sophisticated speculators who believed the party would never end were acting under the influence of drugs.
Cholesterol-lowering drugs.
“There’s a damn good possibility it’s related!” said Mark Goldstein, who has been observing his patients’ reactions to statins for the past three decades.

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Merck and Cardiome to collaborate on oral vernakalant 3

Although the intravenous formulation of Cardiome’s atrial fibrillation drug vernakalant is languishing at the FDA, Merck has announced that it has reached an agreement with Cardiome to develop an oral version of the drug. Cardiome will receive $60 million immediately and much more upon achievement of various milestones.
In contrast to Pfizer, which recently announced that it was withdrawing from cardiovascular research, Merck’s move represents an opposite perspective: “This agreement underscores Merck’s ongoing commitment to the research and development of new cardiovascular drugs,” said Luciano Rossetti M.D., senior vice president and franchise head, Atherosclerosis and Cardiovascular, Merck Research Laboratories.
Click to read the press release from Merck and Cardiome…

NEJM & Lancet: stop the soda madness Reply

It’s time to tax soda and curtail its marketing to children, according to a perspective published online in the New England Journal of Medicine and an editorial published in the Lancet.

Soda and other sugar-sweetened drinks “may be the single largest driver of the obesity epidemic,” according to Kelly Brownell, a Yale nutritionist, and Thomas Frieden, the New York City health commissioner, in the NEJM perspective. Noting that taxes on tobacco have been effective in cutting tobacco use, the writers propose a tax on sugared beverages that “would encourage consumers to switch to more healthful beverages.”
Click to continue reading and to read the Lancet press release…

Brown adipose tissue: Jack Sprat had it, his wife didn’t Reply

Three new studies and an editorial in this week’s New England Journal of Medicine will likely bring brown adipose tissue to the center of research and discussion about obesity. Until recently it was commonly believed that brown adipose tissue did not have a significant physiologic role in adult humans. The new studies provide evidence that the tissue is present and active in adults, and may play a role, and provide a therapeutic target, in obesity.

One study in healthy men found that brown adipose tissue was only active after exposure to cold, and the activity was significantly greater in lean subjects than in obese subjects.
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Prasugrel makes worldwide debut in United Kingdom 1

Daiichi Sankyo and Eli Lilly today announced the worldwide launch of prasugrel in the United Kingdom. Prasugrel will be marketed as Efient in the UK. In the US, when and if the controversial drug gets approved, the brand name will gain an extra “f” and be known as “Effient.”

According to a report in Reuters, in the UK Efient will cost 31% more than Plavix (clopidogrel). The cost of a 28-tablet pack of the new drug is 47.56 pounds compared to 36.35 for Plavix.
Click here to read the Daiichi Sankyo press release…

Presto chango: HF-ACTION shows benefits of exercise in heart failure Reply

Aerobic exercise is probably beneficial in heart failure patients, according to two new reports appearing in JAMA this week. But convincing statistical proof of the benefit is difficult to obtain.

The HF-ACTION study was originally presented in November at the AHA. The trial randomized 2,331 heart failure patients to usual care with aerobic exercise training versus usual care alone. In the primary analysis the difference between the two groups in the primary endpoint of death or hospitalization did not achieve significance. However, after adjusting for “highly prognostic predictors of the primary end point,” the difference between the two groups achieved statistical significance, resulting in an 11% reduction in death and hospitalization.

At the time of the presentation at the AHA, many exerts observed that the results demonstrated the difficulties of implementing a strategy based on lifestyle changes, rather than the limitations of exercise itself.
Click to continue reading, and to read the JAMA press releases…

Psaty raises more questions about conflict of interest in JAMA commentary Reply

Brucy Psaty is a cardiologist who is well known as an outspoken critic of industry influence in cardiovascular medicine. In a commentary in this week’s JAMA, Psaty recounts his early experience as an assistant professor when, after publishing a paper on antihypertensive drugs:

My family and I were invited to a first-class resort, where I presented the results at a sponsored conference. Although I lacked both the golf skills and the sense of entitlement to make the most of the holiday, the effort did result in a publication in an industry-funded supplement.

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NY Times: difficult decisions about Sprint Fidelis leads Reply

Many patients with Sprint Fidelis leads, along with their doctors, face difficult decisions, according to a feature story in today’s New York Times. Reporter Barry Meier writes that “thousands of those patients may face risky surgical procedures to remove and replace” the leads.

Meier reports that 4 patients have already died during Sprint Fidelis lead extraction procedures, and that some “experts fear that the toll could quickly rise if such procedures are not performed by skilled doctors at medical centers that have performed many of the operations.”  The article quotes the Cleveland Clinic’s Bruce Wilkoff, who says some physicians who are performing extraction procedures “don’t meet the criteria.”
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Uh-oh: cigarette smoking found to enhance clopidogrel clinical benefits Reply

A post-hoc analysis of the CLARITY-TIMI 28 trial has turned up strong evidence that cigarette smoking may enhance the clinical benefit of clopidogrel. The results are published online in the Journal of the American College of Cardiology.

In CLARITY-TIMI 28, clopidogrel was markedly more effective in reducing the rate of death or MI before angiography and at 30 days among STEMI patients who smoked 10 or more cigarettes per day, according to the new analysis. As a pro-drug, clopidogrel is transformed in a two-step oxidization process by CYP450 enzymes into its active metabolite. Cigarette smoking is known to induce one of these enzymes, CYP1A2.

CardioBrief asked study investigator Marc Sabatine about the difficulty of interpreting this study for the general public. Sabatine said:
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New study provides best proof yet of myocardial regeneration Reply

Upsetting the long-held but crumbling dogma that the heart can’t regenerate itself, a new study from Sweden and other institutions has provided the best evidence yet that human myocardial cells can be, and are, replaced over the course of a life, at the rate of about 1% per year at the age of 25. The study relies on measuring radioactive-labeled cells. Although it is unethical to perform such an experiment in humans, the team of researchers realized that a “natural” experiment was available in people who were born prior to the ban on above-ground nuclear testing in 1963.
Click here to continue reading, and to read a press release from the Lawrence Livermore National Laboratory

FDA panel gives split decision to diabetes drug liraglutide Reply

Unable to reach a consensus over whether Novo Nordisk’s diabetes drug liraglutide might raise the risk of cancer, the FDA’s Endocrinologic and Metabolic Drugs Advisory Committee split down the middle and voted 6-6 on whether the cancer risk should stop the FDA from approving the drug.
Earlier the committee agreed in an 8-5 vote that liraglutide did not have an excess cardiovascular risk.
Today’s split vote follows by a day the same committee’s favorable 10-2 recommendation for saxagliptin, as we reported yesterday.
You can read coverage of the panel meeting in Dow Jones Newswires, MedPage Today, the Associated Press, and Bloomberg.

Yusuf, Kaul launch rocket attack at JUPITER; Ridker responds 4

JUPITER substantially overestimates the benefits of rosuvastatin, according to Salim Yusuf and colleagues, in a comment in the Lancet, and Sanjay Kaul, in a response provided to CardioBrief. JUPITER leader Paul Ridker disagrees, of course, in a comment to CardioBrief.

In their Lancet comment, Yusuf et al note that the benefits observed in JUPITER were considerably greater than would be expected from previous trials with the drug. The “real benefit” of rosuvastatin is “unlikely to be larger than a 20-30% reduction in relative risk for ischemic events, and a 10% reduction for total mortality. Both estimates are within the 95% CI of the estimates on specific events observed in JUPITER.” In addition, “the role of CRP as a predictor of risk remains controversial.”
Click here to read comments from Paul Ridker and Sanjay Kaul…