This report describes a 55-year-old woman in whom yellow scorpion sting resulted in the development of Mobitz type 1 and transient complete heart blocks unresponsive to atropine administration.  It might be concluded that although autonomic involvement including parasympathetic overactivity is present in such cases, other factors such as toxic damage to the cardiac conduction system may play a ...

Retinoic acid (RA), a derivative of vitamin A, is involved in signal transduction during vertebrate organogenesis. Retinoids through binding to nuclear receptors called RA receptors (RARs) and retinoid X receptors (RXRs) regulate various processes during cardiogenesis. Deregulated retinoid signaling thus has later consequences leading to cardiac malformations. In this review, we will summarize ...

Heart transplantation has in recent months become a clinical fact. Its experimental development reaches back over 60 years, and has been augmented, particularly in the field of imm'inosuppression, by knowledge gained from studies of kidney transplantation. Research workers were faced with a number of questions. Would a denervated heart function effectively, if at all? How would it respond to va...

conclusions: pe may be developed as late as weeks after cardiac surgeries. pe after palliative cardiac surgeries is not uncommon. low doses of aspirin and corticosteroids are usually effective for treating this complication. objectives: our aim was to assess the prevalence, risk factors, time course and therapy response of pericardial effusion (pe) after cardiac surgeries in children. patients ...