About Acquired Cystic Kidney Disease
Acquired Cystic Kidney Disease (ACKD) is a condition where fluid-filled sacs—or cysts—develop in a person's kidneys over time. It is important to note that ACKD is different from polycystic kidney disease (PKD), which is another condition that causes multiple cysts to form in the kidneys.
ACKD typically occurs in children and adults who have chronic kidney disease (CKD), a condition that develops slowly over many years and can lead to end-stage kidney disease (ESRD). In CKD, the kidneys slowly lose their ability to properly filter waste, extra salt, and fluid from the blood.
It's worth mentioning that ESRD refers to total and permanent kidney failure, which may require a kidney transplant or dialysis treatments to filter the blood. While ACKD is more likely to develop in individuals on kidney dialysis, it's important to understand that the cysts are caused by CKD or kidney failure itself, not the dialysis treatments.
Acquired Cystic Kidney Disease (ACKD) can be caused by a variety of factors. Some of the causes of ACKD include:
- Long-term kidney disease: People with long-term kidney disease, such as chronic kidney disease (CKD), are at a higher risk of developing ACKD.
- Dialysis treatment: Individuals who have been on long-term dialysis treatment for kidney failure are also more likely to develop ACKD.
Non-modifiable risk factors are factors that cannot be changed or controlled. Some non-modifiable risk factors for ACKD include:
- Age: The risk of developing ACKD increases with age.
- Gender: In adults, gender is considered a non-modifiable risk factor, with males having a higher risk of developing ACKD compared to females.
- Race: Certain races, such as Indigenous and Black populations, have a higher prevalence of ACKD.
On the other hand, modifiable risk factors are factors that can be changed or controlled. Some modifiable risk factors for ACKD include:
- High blood pressure: Uncontrolled high blood pressure is a modifiable risk factor for ACKD. Managing blood pressure through lifestyle changes and medications can help reduce the risk.
- Smoking: Smoking is another modifiable risk factor for ACKD. Quitting smoking can significantly decrease the risk.
- Obesity: Maintaining a healthy weight through regular exercise and a balanced diet can help reduce the risk of developing ACKD.
A person with early stage ACKD may not experience any symptoms. However, as the condition progresses, they may start to notice certain signs.
The most common early symptoms of ACKD include:
- A swollen face
- Swollen hands or feet
- Foamy urine
- More frequent urination
- Fatigue
- High blood pressure
- High cholesterol
- Breathing difficulties
As the disease progresses or reaches later stages, there may be additional symptoms that indicate a higher severity or progression of ACKD. These symptoms can include:
- Blood in the urine, which can signal that a cyst in the kidney is bleeding
- Tumors in the kidneys
- Increased risk of developing cancerous kidney tumors (although the chance of cancer spreading is lower compared to other kidney cancers)
- Fever and back pain due to an infected cyst
It's important to note that these symptoms can also be associated with other conditions, so it's essential to consult a doctor for an accurate diagnosis and appropriate treatment.
To diagnose ACKD, healthcare professionals commonly use a combination of medical history and imaging tests. Taking a medical history can help the healthcare provider identify any symptoms or risk factors that may suggest ACKD. If a person has been on dialysis for several years and develops symptoms like fever, back pain, or blood in the urine, the healthcare provider may suspect ACKD.
Imaging tests are then used to confirm the diagnosis. These tests include:
- Ultrasound: Ultrasound uses sound waves to create images of the kidneys and can show the presence of cysts as well as the size and shape of the kidneys.
- Computerized tomography (CT) scan: CT scans use a combination of x-rays and computer technology to create detailed images of the kidneys, including cysts and tumors.:
- magnetic resonance imaging (MRI). MRI is a test that takes pictures of the body's internal organs and soft tissues without using x-rays. It can provide detailed images of the kidneys to help with diagnosis.
In addition to these common tests, there may be additional examinations, tests, and procedures to determine the stage or severity of ACKD. These may include taking multiple images from different angles during an MRI to create a detailed picture of the kidneys.
- Sometimes, ACKD is discovered incidentally during an imaging exam for another condition. In these cases, images of the kidneys can help differentiate between ACKD and other kidney conditions like Polycystic Kidney Disease (PKD).
It's important to note that these examinations, tests, and procedures are performed by healthcare providers such as radiologists or specially trained technicians. The patient does not typically require anesthesia for these imaging tests, but in some cases, light sedation may be provided for individuals with a fear of confined spaces during an MRI.
These tests provide valuable information that helps healthcare providers make an accurate diagnosis and develop an appropriate treatment plan for individuals with ACKD.
The goals of treatment for ACKD are to manage symptoms, prevent complications, and improve the overall quality of life for individuals with this condition.
Here are some of the treatment options that may be recommended for ACKD:
- Observation: If ACKD is not causing any complications or symptoms, treatment may not be necessary. Regular monitoring and observation by a healthcare provider may be sufficient in these cases.
- Antibiotics: If an infection occurs in the cysts, healthcare providers may prescribe antibiotics to treat the infection. Antibiotics are medications that kill bacteria and can help resolve the infection.
- Cyst Drainage: Large cysts causing pain may be drained with a long needle inserted through the skin. This helps relieve symptoms linked to large cysts.
- Kidney Transplantation: For those with ACKD who reach kidney failure and need a transplant, getting a healthy kidney can often lead to the disappearance of ACKD in the damaged kidneys. The new kidney is surgically placed to replace the failed ones.
- Tumor Removal: If tumors or suspicious growths are found in the kidneys, surgery may be done to remove them, lowering the risk of cancerous development.
- Bleeding Cyst Treatment: In rare cases where cysts cause bleeding, surgery may be needed to stop the bleeding and prevent further issues.
- Regular Screenings: People with ACKD should talk with their healthcare provider about starting regular screenings, like CT scans or MRIs, to monitor for kidney cancer. These scans help detect cyst or tumor growth early.
It's important for individuals with ACKD to have open communication with their healthcare professionals about their specific situation and treatment options that would be most suitable for them. Treatment plans can vary depending on factors such as overall health, symptoms, and individual needs.
Remember, each person's situation is unique, so it's essential to consult with a healthcare provider who can provide personalized advice and guidance based on their medical history and current condition.