Congestive heart failure, or simply heart failure, is progressive and should not be confused with a heart attack, which involves sudden tissue death of the heart muscle. Although heart failure may occur suddenly in some cases, gradual loss of function is more common.
I believe SI it stands for: Sacroiliac Joint Injections Sacroiliac (SI) joint injections are commonly used to determine what is causing back pain. SI joint injections are primarily diagnostic injections, meaning that they help your doctor determine the cause of your back pain but may not provide you with any long-term relief from the pain.
Sacroiliac (SI) joint dysfunction is a common cause of low back pain. Other terms for this condition include sacroiliitis, SI joint inflammation, SI joint syndrome, sacroiliac joint dysfunction, and SI joint strain.ifferent conditions can cause SI joint dysfunction. The most common include: 1  Arthritis: SI joint dysfunction can be caused by spondylosis (spinal osteoarthritis)âwhen your cartilage around your SI joints wears down, your bones can start to rub against each other.