Self-explanatory domain name with a clear, medical purpose.
CardiacGuard has 12 letters and three syllables. Three syllable names are used by established brands like Microsoft, Armani and Toshiba.
Cardiacguard.com is a dot-com domain. Dot com domains are the most desirable domain extension in the world, used by famous websites like twitter.com. A dot-com is the first thing people think of when they think of a website.