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.
Compared side-by-side with the Echo, the Dot is just as responsive to voice commands: itâs able to hear my voice from across the room, while playing music, or while my two kids are running through the house raising hell. The Dot does have a small built-in speaker, which works great for Alexaâs voice replies and confirmations. It can be used in a pinch to play music, but it certainly isnât room-filling or particularly good sounding. Thatâs where the Dotâs new ability to hook up to a larger speaker comes into play.