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:
Heart block that is not producing any symptoms whatsoever usually does not require a pacemaker, unless it is either third degree heart block, or distal heart block. If heart block is producing symptoms- - especially dizziness or syncope -- then treating it with a pacemaker is usually required. The exception is when the heart block is known to be transient -- for instance, when it is due to a temporary increase in vagal tone.