Tuesday, May 5, 2015

Cardiovascular Research: Digoxin increases the risk of early death ♦ Bystander CPR helps cardiac arrest survivors ♦ Foundations of heart regeneration uncovered

Frailty among older heart patients helps predict severe outcomes Frailty among older people with cardiovascular disease appears to be more predictive than age for gauging their risk of heart attack, stroke and death.
How oxidizing a heart 'brake” causes heart damage Oxidative stress has been long known to fuel disease, but how exactly it damages various organs has been challenging to sort out. Now scientists say research in mice reveals why oxidation comes to be so corrosive to heart muscle.
Digoxin increases the risk of early death in patients with heart problems There is conflicting evidence about whether digoxin, a drug that has been used worldwide for centuries to treat heart disease, might contribute to an increase in deaths in patients with atrial fibrillation or congestive heart failure. The evidence to date shows that it is associated with an increased risk of death
Bystander CPR helps cardiac arrest survivors return to work In Denmark, more bystanders performing CPR contributed to more cardiac arrest survivors returning to work, Cardiac arrest is the abrupt loss of heart function in a person who may or may not have diagnosed heart disease. The time and mode of death are unexpected. It occurs instantly or shortly after symptoms appear.
Foundations of heart regeneration uncovered: Outer layer of heart must be healed first Medical researchers have found that a key to the zebra fish's ability to regenerate cardiac tissue lies in the outer layer of the heart known as the epicardium. When this critical layer is damaged, the whole repair process is delayed as the epicardium undergoes a round of self-healing before tending to the rest of the heart. The finding points to a possible target for repairing the damage caused by a heart attack.

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