Archive - Jul 2012 - SCA Article

Archive - Jul 2012 - SCA Article

Date
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July 30th

Faster Isn't Always Better with CPR

NEW YORK--Doing CPR too fast can mean chest compressions aren't deep enough to get blood flowing to the heart and brain, a new study from Belgium suggests.

Researchers found that when rescuers pushed at a rate above 145 compressions per minute, the depth of those compressions dropped to less than four centimeters.

Recommendations from Europe and the United States now both call for compressions to be at least five centimeters (about two inches) deep, at a rate of 100 per minute or faster.

"The idea is that with each compression you move a little blood through the body and so if you go faster and deeper you might be moving more blood," said Dr. Benjamin Abella, an emergency medicine doctor at the Hospital of the University of Pennsylvania in Philadelphia, who wasn't involved in the new study.

But, "If you push faster, it stands to reason that you might end up pushing shallower," he said.

Dana Vollmer Overcomes Heart Condition to Win Olympic Gold

Swimmer Dana Vollmer joined the London Olympics highlight reel when she set a record in the 100-meter butterfly on Sunday, becoming the first woman ever to finish the event in less than 56 seconds. For the 24-year-old American swimmer, capturing the gold was something of a redemption, coming four years after she failed to qualify for the team at the Beijing Olympics. But one of the most compelling aspects of Ms. Vollmer’s story is that she overcame not only athletic stumbles on her way to the gold but also a potentially deadly heart condition.

At the age of 15, already an elite swimmer, Ms. Vollmer, from Granbury, Tex., was taken to a local doctor after experiencing dizzy spells while training. Doctors discovered she had an abnormal heartbeat and set up a procedure to correct it. But they then discovered she had a genetic cardiac electrical disorder called long QT syndrome, which could lead at any moment to sudden cardiac arrest.

Scarred Heart May Indicate Need for ICD

Left ventricular scarring may be a better determinant for implantable cardioverter defibrillator (ICD) candidacy than a low ejection fraction. 

ICD Outcomes Tied to Cardiac Muscle Scarring

A significant amount of MRI-detected scarring in the myocardium is predictive of a poor prognosis in patients with an implantable cardioverter defibrillator (ICD) no matter the left ventricular ejection fraction (LVEF), according to a study in the July 31 issue of the Journal of the American College of Cardiology.

Of the 137 patients in the study, those with a LVEF greater than 30% had a six-fold increased risk of adverse events following ICD placement when they had more than 5% scarring compared with those with minimal or no scarring, reported Igor Klem, MD, from Duke University Medical Center in Durham, N.C., and colleagues.

July 29th

U.S. Preventative Services Task Force Issues New Guidelines on ECG Screening for Adults

New guidelines from the U.S. Preventive Services Task Force (USPSTF), comprised of 16 volunteer members, recommend against screening with electrocardiography (ECG) during rest or exercise to predict coronary heart disease (CHD) events in asymptomatic adults at low risk for CHD events.

An ECG is a simple, non-invasive test that measures electrical activity from the heart. Information picked up from an ECG may determine how fast a heart beat is, or whether it has a steady or problematic rhythm. An irregular ECG could detect a major heart problem, including heart attacks, arrhythmias and heart failure.

While the panel recommends against giving ECGs to healthy adults, some physicians believe they're important in order to establish baseline measures when people are healthy in case things later go awry, in order to compare the results.

Post-Cardiac Arrest Care System Improved Survivors' Neurological Status

DALLAS -- Fewer sudden cardiac arrest survivors had neurologic impairment after a novel regional system of care was implemented, according to research published in Circulation, an American Heart Association journal.

In 2009, the Aizu region of Japan established an advanced post-cardiac arrest care system that included emergency medical services (EMS) taking survivors directly to hospitals specializing in advanced care or from an outlying hospital to the specialty hospital after an effective heartbeat was restored.

Advanced care includes therapeutic hypothermia, appropriate fluids, cardiovascular medications, respiratory management and procedures like percutaneous coronary intervention (PCI) to open blocked arteries.

The American Heart Association refers to these treatments as the "fifth link" in the Chain of Survival for sudden cardiac arrest.

July 26th

Not All Long QT Athletes Have to Be Benched

Exercise and sports participation are "manageable risks"

Tailored therapy and close supervision may help keep competitive athletes with long QT syndrome, such as Olympic hopeful Dana Vollmer, in the game, a study has shown.

A thorough diagnostic evaluation, appropriate medication, risk counseling, education, and a defibrillator device at the ready kept rates of potentially fatal arrhythmias low among a cohort of athletes who chose to remain in competitive sports despite a diagnosis of the cardiac electrical disorder, Dr. Jonathan N. Johnson and Dr. Michael J. Ackerman of the Mayo Clinic in Rochester, Minn., wrote in the July 21 issue of the Journal of the American Medical Association.

July 22nd

Seven in 10 NJ Hospitals Use Mild Therapeutic Hypothermia for Survivors of SCA

Therapeutic hypothermia (TH) is a fairly new and innovative procedure designed to improve neurologically intact survival from out-of-hospital cardiac arrest (OHCA). The procedure involves reducing the body's core temperature for an extended period of time (e.g., 12–24 hours) during postarrest treatment. Research has demonstrated the efficacy of TH for improving neurologically intact survival after OHCA.

National guidelines have called for the use of TH on OHCA survivors since 2005. A variety of barriers, however, have limited the widespread adoption of TH. Some providers remain skeptical about the procedure's effectiveness, while others believe it is too complex to implement successfully. Other barriers include lack of knowledge, experience, personnel, resources, and infrastructure.

Preventing Sudden Cardiac Death at the London Olympics

LONDON, UK - When 32-year-old Claire Squires collapsed in sudden cardiac arrest during the London Marathon in May, Dr Sanjay Sharma (St. George's Hospital, London, UK), medical director for the race, tried in vain to save her. Now Sharma, head of the cardiology team for the 2012 Olympics, will no doubt have Squires at the back of his mind when the Games open later this week. He and his team are doing everything possible to make sure a major cardiac event doesn't grab the spotlight on sports' biggest international stage.

July 17th

Cardiac Arrest Survival Improving in U.S. Hospitals

More people hospitalized for cardiac arrest are surviving compared with a decade ago, according to a U.S. study, possibly because of changes in hospital treatment and the way bystanders respond when somebody collapses.

The study, which appeared in the journal Circulation, found that in 2008, the death rate among U.S. residents hospitalized after cardiac arrest was just under 58 percent - down from almost 70 percent in 2001.

Researchers, led by Alejandro Rabinstein of the Mayo Clinic in Rochester, Minnesota, based their findings on a national hospital discharge database that included nearly 1.2 million people hospitalized for cardiac arrest.

They stressed that the numbers accounted only for cardiac arrest victims who survive long enough to be admitted to the hospital. Many people die before then.

July 12th

Green Mile Actor Suffers Sudden Cardiac Arrest

Michael Clarke Duncan is in the intensive care unit at an L.A. hospital after going into cardiac arrest this morning ... and might have died if not for the swift action of his girlfriend Omarosa Manigault. 

Manigault discovered the "Green Mile" actor in a state of cardiac arrest just before 2:00 AM. 

She performed CPR and was able to resuscitate the 54-year-old. 

Duncan was transported to a nearby hospital where he was immediately admitted to the ICU. 

His heart rate is now stable and Manigault is by his side. Doctors are performing tests to figure out why the actor's heart stopped in the first place. 

"According to doctors, Michael Clarke Duncan is now stable and we look forward to his full recovery."

SOURCE: TMZ

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