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Why Does PNH Need to Be Managed?
Why Does PNH Need to Be Managed?
- Hemolysis is the bursting of red blood cells
- In PNH, hemolysis is always happening
- Ongoing hemolysis can limit the way you live and cause serious health problems such as heart attack or stroke
- A simple blood test for LDH levels can tell you the levels of your hemolysis
- Controlling hemolysis is the key to controlling PNH
Hemolysis: The threat you cannot see
Taking action is key to fighting PNH
Ongoing hemolysis is the root cause of the signs, symptoms, and serious health problems of PNH.
Hemolysis happens when red blood cells burst. With PNH, hemolysis is always happening — even if you can’t see or feel it.
Why is hemolysis so bad?
When red blood cells burst, they release hemoglobin. Hemoglobin is good for the body when it’s inside your red blood cells.
When it’s outside, it is very dangerous and can harm your body in many ways. Over time, it is very dangerous and can build up and cause serious health problems that are hard to predict.
These health problems can include:
- Kidney failure
- Blood clots
- Stroke
- Heart attack
- Damage to organs such as your liver, brain, and lungs
How will I know hemolysis is happening?
You cannot always see or feel hemolysis, which makes it tough to manage. The results of it often can affect the way you feel and live your life.
Left unattended, hemolysis can make you feel very tired and weak. It can also lead to signs and symptoms like:
- Fatigue
- Impaired quality of life
- Trouble swallowing
- Stomach pain
- Shortness of breath
- Dark-colored urine
- Erectile dysfunction (ED)
PNH is progressive
PNH is a serious and progressive disease. This means your disease can get worse over time, increasing your risk of major PNH health problems, including some that can be life threatening.
You CAN take control of PNH
Fortunately, by addressing PNH early and aggressively, people with PNH can live fuller lives. By working closely with your doctor, you may be able to keep the risks of PNH at bay.
*Fictitious patient and account. Adapted from real patient stories.
LDH: Putting hemolysis
to the test
Lactate dehydrogenase (LDH) is an enzyme found inside red blood cells. LDH measures hemolysis. If you have high levels of it in your bloodstream, it means a lot of your red blood cells have been destroyed. Your doctor can check for LDH through a simple blood test. Testing your LDH regularly is a vital part of taking control of your disease.

“For a long time I felt fine and just ignored my PNH. I know better now.”
—Abby*
