In terms of specific arrhythmias, sinus tachycardia is the most frequently seen arrhythmia, with supraventricular. tachycardia being the next most common, followed by sinus bradycardia (Hanash, 2010). Reentrant tachycardia is. common in infants and children with congenital heart disease (CHD). Some arrhythmias in the early post operative period like premature atrial contractionâs (PACâs) and premature ventricular beats (bigeminy) are usually transient and well tolerated. Others like junctional ectopic tachycardia (J ET) a nd atrial flutter may cause significant
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Crunchbase. 1  Sophos Founded 1985. Overview Sophos is a leader in IT security and data protection. 2  Twitter Founded 2006. Overview Twitter is a global social networking platform that allows its users to send and read 140-character messages known as âtweetsâ.