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.
Alexa gets new siblings: the Amazon Echo Dot and Tap. Amazonâs Echo was an unlikely hit in todayâs increasingly mobile world. Iâve got one, and Iâm always amazed how the Echo can set an alarm, tell you the weather, and play news podcasts, audio books, and music, including volume adjustments, all under voice control.