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.
Move over, Siri. Amazonâs voice assistant Alexa is making its way to every part of our lives. Following an excellent response to its smart speaker, the Echo, Amazon has introduced two new Alexa-enabled devices created to make your home a little more entertaining: the Amazon Tap and Echo Dot. The Echo Dot is sort of a mini version of the Echo speaker, packing the same voice-assisted punch as its predecessor.