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:
A pacemaker is an electrical device. It is implanted under your skin to help manage irregular heartbeats called arrhythmias. Modern pacemakers consist of two parts. One part contains the battery and the electronics that controls your heartbeat. The other part is one or more leads, which send signals to your heart.