Aortic insufficiency causes both volume overload (elevated preload) and pressure overload (elevated afterload due to increased stroke volume) of the heart. The volume overload (due to elevated pulse pressure and the systemic effects of neuroendocrine hormones) causes left ventricular hypertrophy (LVH).
Echo Dot is a hands-free, voice-controlled device that uses the same far-field voice recognition as Amazon Echo. Dot has a small built-in speakerâit can also connect to your speakers over Bluetooth or with the included audio cable.
Amazon's Echo is a device that uses an intelligent voice assistant named Alexa to help users with simply daily task such as telling the time, reading books and even ordering products on Amazon Prime. Alexa is very similar to the iPhone's Siri or Microsoft's Cortana. The Echo was first released in 2015, and since then, it's become popular in households. However, not everyone is aware of all the things the cylinder-shaped speaker with a blue circle light can do.