Abstract: Electrical stimulation to cardiac tissue stabilizes atrial and ventricular arrhythmia when timed to stabilize a limit cycle structure in a Poincare map. Disclosed are methods and apparatus, operational internally or externally, for removing the reentrant effects of heterogeneity present in a diseased heart and returning the heart to an improved metabolic status allowing removal of support. The methods and apparatus disclosed are also useful in the chronic surveillance and maintenance of regularized contractility in an aged or diseased heart.
Abstract: A gas storage assembly that has an enclosure within which are disposed at least about 100 inorganic tubules are present for each cubic micron of volume of the enclosure. The assembly has a storage capacity of at least 20 grams of hydrogen per liter of volume of the enclosure.