Stages of HIV Infection. Without treatment, HIV advances in stages, overwhelming your immune system and getting worse over time. The three stages of HIV infection are: (1) acute HIV infection, (2) clinical latency, and (3) AIDS (acquired immunodeficiency syndrome).
A pacemaker is a small, battery-powered device that is implanted into your chest to help regulate your heart rate. You need a pacemaker if your heart beat is too slow or is irregular. Your heart may not be able to pump blood well throughout your body. This can happen because of heart failure, aging, or heart medications. You may have the following signs and symptoms:
Your doctor has recommended a pacemaker because there are signs that your heart is not beating fast enough or there is a problem with the normal electrical signal which causes your heart to beat. A pacemaker is composed of three parts: a pulse generator, one or more leads, and an electrode on each lead.