Causes of Lymphedema: Insights and Implications


Intro
Lymphedema is not just a medical term tossed around in clinical discussions; it’s a condition that affects many lives, yet often flies under the radar. Imagine a water hose that’s clogged—water can’t flow freely, leading to pooling and swelling. That’s the essence of lymphedema. It's characterized by the buildup of lymphatic fluid due to blockages or damage in the lymphatic system. The implications can be profound, impacting physical mobility, emotional well-being, and even social interactions.
In this article, we will untangle the various threads weaving into the fabric of lymphedema. The focus will be on understanding causes ranging from genetic factors to environmental influences, as well as the consequences these factors pose for management and treatment. By dissecting this knowledge, we aim to empower readers—including students, researchers, and healthcare professionals—with insights vital to grasping the complexities of this condition.
As we move forward, we will delve into the key concepts surrounding lymphedema, exploring definitions and related ideas that frame our understanding. This exploration will serve as a foundation for discussing implications and preventive measures. Let's start by establishing a solid groundwork.
Preamble to Lymphedema
Lymphedema, often overshadowed by other health issues, warrants a closer look due to its significant impact on individuals' quality of life. Understanding this condition is essential not just for those affected but also for caregivers and health professionals. With the lymphatic system playing a crucial role in fluid balance, comprehending the causes of lymphedema can lead to better management strategies and improved patient outcomes. The implications of this understanding are far-reaching; from better preventive measures to enhanced diagnostic techniques, knowledge is power when it comes to tackling lymphedema.
Definition and Overview
To put it simply, lymphedema is a condition marked by abnormal swelling, typically in the arms or legs. This swelling emerges primarily from lymphatic system dysfunction, where the flow of lymph fluid is impaired. While lymphedema can occur seemingly out of nowhere, it frequently has underlying causes ranging from genetic predispositions to surgical outcomes. According to the National Lymphedema Network, many individuals suffering from this condition may grapple with physical discomfort, but the emotional toll can be equally troubling. Simply put, it can be a real double whammy.
The Lymphatic System: Key Functions
The lymphatic system operates much like the body’s waste disposal crew, ensuring that excess fluid, proteins, and other particulates don’t accumulate in our tissues. It’s not just about fluid management, though. The lymphatic system also plays an instrumental role in the immune response, helping to ward off infections and diseases. Here’s a quick rundown of its key functions:
- Fluid Regulation: Maintains fluid balance by returning excess interstitial fluid back to the bloodstream.
- Immune Function: Produces and transports lymphocytes, crucial defenders against pathogens.
- Nutrient Absorption: Assists in absorbing dietary fats and fat-soluble vitamins from the digestive system.
Understanding these functions provides insight into why the lymphatic system’s failure can result in lymphedema. When the system is compromised, fluids can build up, leading to the characteristic swelling. Today's medical discussions often link lymphedema with cancer treatments, highlighting the urgent need for awareness and education in both the medical community and the general populace.
"Knowledge is the first step to empowerment—particularly when it comes to managing chronic conditions like lymphedema."
In summary, a grasp of lymphedema's roots and the workings of the lymphatic system is crucial. As we dive deeper into this article, we will explore the various factors contributing to lymphedema and their broader implications.
Pathophysiology of Lymphedema
Understanding the pathophysiology of lymphedema is key when exploring this condition in detail. It provides insight into how the lymphatic system operates and what happens when it encounters obstacles. Knowing these mechanisms is critical for identifying effective treatments and managing symptoms. The consequences of lymphedema can be severe, involving not just physical discomfort but also emotional and social implications. A comprehensive grasp of the underlying pathophysiological mechanisms helps healthcare providers develop better therapeutic strategies and empowers patients to make informed choices about their care.
Understanding Lymphatic Obstruction
When we talk about lymphedema, lymphatic obstruction is often the first roadblock that comes to mind. The lymphatic system plays a crucial role in maintaining fluid balance in the body. It helps drain excess fluid from tissues and transports it back into the bloodstream. When any part of this intricate system gets obstructed, the results can be quite noticeable, as excess lymph fluid begins to accumulate. This burden can be a direct result of surgical interventions, infections, or even congenital anomalies in some cases.
Obstructions can arise from various sources. Surgical procedures, like those for cancer, can scar lymph nodes or blood vessels, ultimately leading to blockage. In inflammatory processes, infections such as cellulitis can severely disrupt lymphatic flow. When lymph fluid can’t flow freely, it’s like a backed-up sink—the pressure builds up, causing tissues to swell, resulting typically in discomfort, joint pain, and mobility restrictions.
Fluid Accumulation Mechanisms
Fluid accumulation in lymphedema is not merely an issue of a physical blockage. It involves various complex mechanisms that can compound the problem even further. Initially, when the lymphatic system is compromised, the body begins to compensate for the impaired drainage. The affected tissues swell due to an excess in the lymphatic fluid, which accumulates because the body can’t return it to the circulatory system effectively.
This scenario marks the onset of an inflammatory response. As the lymphatic system struggles, various cytokines and growth factors come into play, leading to the production of fibrous tissue. This makes the swelling worse. You see, it's not just a simple backlog; it’s a cascade of biological events that leads to more fluid retention and further obstruction.
In summation, being aware of the pathophysiology surrounding lymphedema assists in understanding both its complexity and health implications. The knowing of how the obstruction happens and why fluid accumulates enables a more targeted approach in treatment strategies. This knowledge is not just for clinicians; it also equips patients with a better framework to understand their condition and the steps they need to take for effective management.
"The pathophysiological insights into lymphedema are crucial for mapping out the implications on individual health and developing effective treatment regimens."
Genetic Factors in Lymphedema
Understanding the genetic factors that contribute to lymphedema is vital for grasping the nuances of this condition. Genetic predispositions play a fundamental role in increasing an individual's risk of developing lymphedema. With advancements in genetic research, we've begun to unravel the complexities of how certain gene mutations are linked to hereditary forms of the disease. This understanding not only aids in diagnosis but also opens the door to potential therapeutic options that could mitigate the symptoms or even slow the progression of the condition. Such knowledge can empower patients and healthcare providers alike to adopt more personalized management strategies.
Hereditary Lymphedema and Gene Mutations
While many cases of lymphedema arise due to external factors, hereditary lymphedema offers a different narrative. This condition often presents at birth or develops in adolescence and is closely associated with specific gene mutations. The FOXC2 gene is a notable player here; mutations can result in lymphatic vessel malformations, leading to swelling and discomfort. These mutations disrupt the normal function of lymphatic vessels, making the system less efficient in managing fluid.


As a result, patients may experience not only physical limitations but also emotional distress due to their condition. Breakthroughs in genetic testing are instrumental here. Knowing one’s genetic predisposition can inform early intervention strategies, which may greatly improve the quality of life for those who carry these mutations.
Chromosomal Abnormalities and Their Impact
Chromosomal abnormalities are another facet worth examining. Changes in chromosome structure—be it deletions, duplications, or translocations—can lead to disruptions that influence lymphatic development. For example, abnormalities in chromosome 5 are frequently found in individuals with Milroy disease, a hereditary form of lymphedema. These chromosomal alterations can significantly sway how lymphatic systems develop and function.
Impacts extend beyond the physical; living with a condition linked to chromosomal irregularities can intensify feelings of vulnerability. It raises questions about genetic counseling and the implications of inheritance. Thus, discussions surrounding chromosomal abnormalities are fruitful avenues for ongoing research, especially as they relate to patient care and future therapies.
"Genetic factors are not just the backdrop; they play an active role in shaping the experience of lymphedema in affected individuals and their families."
To sum up, genetic factors in lymphedema are a key area of focus that can change the landscape of management and treatment strategies. Whether through understanding hereditary traits or comprehending the implications of chromosomal changes, research continues to pave the way for enhanced patient care and quality of life.
Surgical Contributions to Lymphedema
Surgical interventions can be a double-edged sword when it comes to lymphedema. While these procedures are often vital for treating life-threatening conditions, they can also trigger complications such as lymphedema. Understanding this connection is crucial for both patients and healthcare providers alike. Delving into how surgeries influence the lymphatic system sheds light on the need for careful planning and management around surgical treatments.
Cancer Surgeries and Their Consequences
Cancer surgeries, particularly those involving lymph node dissection, play a significant role in the development of lymphedema. When lymph nodes are removed or damaged during procedures like mastectomies or pelvic surgeries, the normal flow of lymphatic fluid can be disrupted. This disruption can lead to fluid accumulation, causing swelling and discomfort.
- Incidence: Studies show that the prevalence of lymphedema post breast cancer surgery can vary from 5% to over 30%. Factors like the extent of surgery and number of lymph nodes removed significantly influence these figures.
- Understanding Risk Factors: Surgeons must assess individual patient risks, including body mass index and previous radiation therapy, which can compound the risk of developing lymphedema. It’s crucial for patients to have a candid discussion with their healthcare teams about the potential implications before undergoing surgery.
- Mitigation Strategies: Various techniques, including lymphatic sparing surgery and targeted therapies, can help reduce the risk of lymphedema. Education on post-operative care is also essential. Awareness about self-monitoring, early detection of symptoms, and physical therapy can make a world of difference in outcomes.
"Knowledge is power. Knowing the possible risks and signs of lymphedema can lead to timely intervention and better management."
Effects of Orthopedic Surgeries
Orthopedic surgeries can also contribute to lymphedema, though the mechanisms may differ from cancer-related procedures. Surgeries on the limbs, such as total knee replacements or hip surgeries, might impact the surrounding lymphatic structures.
- Surgical Trauma: Any trauma to the lymphatic vessels during orthopedic procedures could hinder lymph drainage, leading to swelling post-surgery.
- Fluid Management: During and after orthopedic surgeries, the management of fluid balances is pivotal. Improper handling of surgical drains or failure to address fluid accumulation can escalate the issue.
- Long-term Monitoring: Patients often need to be educated on the signs of lymphedema, especially when they have had limb surgeries. Regular check-ups can help identify early signs of fluid buildup.
Radiation and Lymphedema
Radiation therapy is a commonplace treatment for several types of cancer, but it also carries risks that are often not highlighted during consultations. One of the most significant, yet underappreciated, consequences is the potential for developing lymphedema. Understanding the relationship between radiation exposure and lymphedema can prove crucial, as it might influence a patient's treatment decisions and subsequent management plans. It’s essential to connect the dots here, as awareness can lead to better outcomes for patients at risk.
Mechanisms of Radiation-induced Damage
When radiation therapy targets tumors, it’s not just the cancer cells that take a hit. The lymphatic vessels are delicate, and radiation can wreak havoc on their integrity. Here’s how it often unfolds:
- Cellular Damage: Radiation can directly affect the endothelial cells lining the lymphatic vessels. These cells are crucial for maintaining vessel walls and ensuring proper fluid drainage. Damaging them can lead to vessel dysfunction.
- Inflammatory Response: When the body senses damage, an inflammatory response kicks in. This can cause swelling in the surrounding tissue, further aggravating any existing obstructions in the lymphatic system.
- Fibrosis Development: As the body attempts to repair the damage caused by radiation, it may lay down excess collagen, leading to fibrosis. This stiffness can restrict lymphatic flow, thereby intensifying the potential for lymphedema.
"The fine balance that the lymphatic system maintains is easily disrupted by the side effects of radiation therapy; understanding this risk is vital for proactive management."
Post-radiation Lymphedema Symptoms
Recognizing the symptoms of lymphedema after radiation treatment is pivotal in securing timely intervention. Patients may experience a range of signs, which can vary from mild to severe:
- Swelling: The most noticeable symptom is swelling, particularly in the treated area like the arm or leg. Initially, it may come and go, but over time it can become more persistent.
- Heaviness or Tightness: Patients often describe a feeling of heaviness in the affected limb or tightness in the skin, making movement more cumbersome.
- Pain or Discomfort: Some individuals report experiencing discomfort or pain, particularly when engaging in activities that require use of the affected limb.
- Recurrent Infections: With the lymphatic system compromised, there may be an increased susceptibility to infections, such as cellulitis, which can exacerbate lymphedema symptoms.
Overall, the implications of radiation on the lymphatic system are profound. Management approaches must not only factor in the immediate outcomes of cancer treatment but also the long-term ramifications associated with radiation exposure. Awareness and early recognition of these symptoms can make all the difference in how patients navigate their post-treatment life.
Role of Infections in Lymphedema Development
Infections have been identified as significant contributors to the development of lymphedema, especially in populations with compromised lymphatic systems. Understanding the dynamics between infections and lymphedema is crucial, as it helps healthcare providers to implement preventative measures and develop effective treatment strategies. The implications are rather profound, impacting not just individual health but also healthcare costs and resource allocation in broader public health contexts.
In some cases, the mere threat of infection can lead to a cascading effect on an already fragile lymphatic system. If lymphedema doesn’t stem directly from an infection, after experiencing an infection, an individual is left with increased risk. This perpetual cycle both complicates treatment and diminishes quality of life for patients.


Cellulitis and Its Link to Lymphedema
Cellulitis is a bacterial skin infection that can lead to inflammation and significant swelling, complicating existing lymphedema conditions. The main culprits of cellulitis include bacteria such as Streptococcus and Staphylococcus. When these harmful microorganisms invade the body, they can establish infection right in areas where lymphatic drainage is already hindered.
The connection is not merely coincidental. Studies have shown that a bout of cellulitis can trigger or worsen existing lymphedema. After recovering from the initial infection, there’s often lingering swelling that can become chronic. People who have had multiple episodes of cellulitis often find themselves managing recurrent bouts of lymphedema. This cycle creates a challenge for both managing the immediate symptoms of cellulitis and its longer-term effects on lymphatic health.
"An ounce of prevention is worth a pound of cure."
- Benjamin Franklin
Preventative measures, like diligent skincare and managing existing skin conditions, can significantly lower the risk of developing lymphedema triggered by cellulitis.
Filarial Infections: A Global Concern
Filarial infections, particularly lymphatic filariasis, contribute to lymphedema in many tropical countries. Spread by mosquito bites, these parasitic worms infect the lymphatic system, leading to severe lymphedema and elephantiasis, a condition where the affected limb or body part becomes massively swollen. This condition not only symbolizes a serious health issue but also stirs social stigmatization in affected communities.
The implications are staggering: globally, millions are at risk. Preventing these infections requires collective public health efforts, including vector control strategies and community education on reducing exposure to mosquitoes. But once contracted, the treatment is often long-term, focusing on managing symptoms rather than eliminating the root cause of the infection.
In summary, infections play a pivotal role in the onset and exacerbation of lymphedema. From the localized effects of cellulitis to the more systemic implications of filarial infections, the healthcare community needs to treat infections not merely as isolated incidents but as underlying factors that can lead to greater complications like lymphedema.
Lifestyle Factors Affecting Lymphedema
When it comes to comprehending lymphedema, it’s critical not just to assess medical interventions and genetic factors but also to explore the lifestyle factors that play a significant role in its development and management. Lifestyle choices can either heighten one's risk for lymphedema or provide pathways for effectively reducing symptoms for those already affected. In this section, we will delve into two primary influences: obesity and sedentary lifestyle—each providing a unique lens through which to view the complex nature of lymphedema.
Obesity and its Impact on Lymphedema Risk
Obesity is often seen as a significant contributor to various health issues, and lymphedema is no exception. When excess fat accumulates, it can exert additional pressure on lymphatic vessels, impairing their ability to function correctly. This pressure may hinder lymph fluid drainage, creating a breeding ground for swelling.
Moreover, individuals with obesity can face a plethora of complications that compound the risk of developing lymphedema. For instance:
- Increased Inflammation: Fat tissue can produce cytokines, leading to chronic inflammation that affects lymphatic function.
- Restricted Mobility: Excess weight can make physical activity challenging, which is pivotal for maintaining lymphatic health.
- Surgical Complications: Obesity can increase the likelihood of surgical interventions like lymph node removal, which can directly contribute to lymphedema.
Of course, tackling obesity involves a multifaceted approach, emphasizing healthy diet choices and regular physical activity. Engaging in activity may help alleviate symptoms of lymphedema even for those already diagnosed.
Sedentary Lifestyle and Vulnerability
A sedentary lifestyle, characterized by minimal physical activity, can also elevate a person's risk for lymphedema. Movement is essential for maintaining the health of the lymphatic system. Unlike blood, which is pumped by the heart, lymph relies on physical activity to flow through lymph vessels. A lack of movement can lead to stagnation of lymph fluid, increasing the risk of swelling.
The following factors related to a sedentary lifestyle contribute to vulnerability:
- Poor Circulation: Inactivity can result in reduced blood and lymphatic circulation, leading to fluid retention.
- Weak Muscles: Muscles play a critical role in promoting lymph flow. Without adequate strength and activity, lymphatic health can deteriorate.
- Overall Health Risks: A sedentary lifestyle contributes not only to lymphedema risk but also to a range of other health concerns, such as heart disease and diabetes, further complicating the management of lymphedema.
Incorporating regular exercise— even if it’s just a short daily walk— can significantly improve lymphatic health. Activities that involve resistance training, yoga, or pilates may also enhance strength without excessive strain on the body.
Understanding the interplay between lifestyle factors and lymphedema is essential for effective prevention and management. Recognizing how obesity and inactivity influence lymphatic function empowers individuals to take proactive measures for better health outcomes.
Diagnostic Approaches to Lymphedema
Understanding how to accurately diagnose lymphedema is essential as it significantly influences the management and treatment approaches. The challenge with lymphedema lies in its subtle presentation, particularly in the early stages. This necessitates a multifaceted diagnostic strategy, blending various assessment techniques and imaging modalities to ensure a comprehensive evaluation. Early recognition of lymphedema can drastically improve outcomes, allowing for timely intervention that can inhibit the progression of the condition.
Assessment Techniques in Modern Medicine
In modern medical practice, assessment techniques play a crucial role in diagnosing lymphedema. One of the primary methods is clinical examination, where healthcare providers meticulously assess physical signs such as limb swelling, skin texture changes, and the presence of pitting edema.
Another vital tool is the use of circumferential measurement. This approach involves measuring the affected limb at specific intervals, providing quantifiable data on swelling progression. Beyond physical methods, various questionnaires aim to evaluate the patient’s perception of their limb's function and quality of life, offering a holistic view of the impact of lymphedema.
"A thorough evaluation lays the foundation for effective management strategies."


Moreover, bioimpedance spectroscopy (BIS) has emerged as a noteworthy technique. This non-invasive method uses electrical signals to assess fluid levels in tissue, providing real-time data about lymph fluid accumulation. By offering a more precise measurement of edema, BIS helps clinicians track changes during treatment more accurately.
Imaging Modalities for Better Understanding
Imaging technologies have revolutionized the diagnostic landscape for lymphedema, providing critical insights into the condition. Ultrasound is often the first imaging modality employed due to its accessibility and ability to visualize soft tissues. It helps identify secondary complications, such as cellulitis or lymphatic vessels' presence.
Moving beyond this, MRI (Magnetic Resonance Imaging) offers a detailed view of the lymphatic system and surrounding soft tissues. It not only highlights fluid accumulation but also delineates lymphatic structures, giving a clearer picture of lymphatic integrity. For certain cases, CT (Computed Tomography) scans might also be employed to visualize complex anatomical regions, though they are less common in routine lymphedema assessment.
In addition to MRI and CT, lymphoscintigraphy remains a gold standard in cases where lymphatic function needs to be evaluated. By injecting a radioactive tracer into the lymphatic system, clinicians can observe the lymphatic flow and pinpoint areas of obstruction, further aiding in accurate diagnosis.
In summary, employing a combination of assessment techniques and advanced imaging modalities allows for a nuanced understanding of lymphedema. This multidimensional approach not only advances diagnosis but also paves the way for tailored treatment strategies, ultimately enhancing patient care outcomes.
Management Strategies for Lymphedema
Lymphedema presents significant challenges, and understanding how to manage the condition is paramount for those affected. The management strategies associated with lymphedema involve a multi-faceted approach, designed to not only alleviate symptoms but also improve the overall quality of life. This section covers essential elements such as compression therapy, physical therapy, and additional methods that have been shown to yield positive results in managing lymphedema.
“Effective management of lymphedema hinges on a tailored approach, considering individual circumstances and needs.”
Compression Therapy Options
Compression therapy is often the cornerstone of managing lymphedema. This method uses specialized garments that apply pressure to the affected areas, thus promoting better lymphatic fluid movement. There are different types of compression therapy options available, each with its unique characteristics:
- Compression Garments: These are usually made of elastic fabrics and come in various forms, such as sleeves, stockings, and wraps. They create a gradient pressure effect that helps support the lymphatic system. Many people find these garments beneficial, especially when worn regularly.
- Pneumatic Compression Devices: These devices use air to inflate and deflate sleeves or wraps, providing a rhythmic massage to the affected area. They can be particularly effective for those dealing with more severe cases of lymphedema, but the use of these machines typically requires guidance from a healthcare professional.
- Self-Compression Techniques: Patients can learn techniques to manually compress their limbs using bandages. This is often a suitable option to integrate into daily routines, ensuring consistent management of swelling.
When considering compression therapy, it is crucial to properly size garments. Ill-fitting compression items can lead to complications, including skin irritation and improper lymphatic flow.
Role of Physical Therapy
Physical therapy plays an integral role in the management of lymphedema. Trained physiotherapists can devise specialized exercise programs tailored to individual needs, focusing on enhancing lymphatic flow and improving overall mobility. The following aspects highlight the importance of physical therapy:
- Manual Lymphatic Drainage (MLD): This gentle massage technique encourages lymphatic fluid movement. MLD can be immensely beneficial, especially in the early stages of lymphedema.
- Exercise: A carefully structured exercise regimen not only helps manage swelling but also improves muscle strength and overall function. Low-impact activities, such as swimming or walking, can be particularly effective. It helps stimulate the lymphatic system, reducing the buildup of fluid.
- Education and Self-Management Strategies: Physical therapists must educate patients on the importance of self-care techniques, including skin care, hygiene, and limb protection to prevent complications.
In summary, heeding the right management strategies for lymphedema is vital in alleviating symptoms and enhancing social and physical well-being. Employing compression therapy alongside a dedicated physical therapy program can make a tangible difference in the lives of those battling this condition.
Future Directions in Lymphedema Research
The quest for effective treatment and management of lymphedema continues to evolve, focusing on breaking new ground in understanding and addressing this complex condition. Research in this area is not only vital for improving patient care but also for shedding light on the intricate workings of the lymphatic system itself. The growing interest in understanding lymphedema drives the development of innovative approaches, blending traditional medical practices with cutting-edge technology and therapies. Recognizing these future directions can lead to better outcomes, encouraging researchers and practitioners alike to reconsider existing paradigms.
Innovative Therapies on the Horizon
As researchers dig deeper into the mechanisms behind lymphedema, several innovative therapies are emerging that hold promise for better management. One exciting avenue is the development of targeted drug therapies that seek to enhance lymphatic function. For instance, the exploration of lymphangiogenesis, or the formation of new lymphatic vessels, is gaining traction. Researchers aim to identify compounds that can stimulate this process in individuals suffering from lymphedema.
Additionally, new minimally invasive surgical techniques, such as lymphatic bypass and vascularized lymph node transfer, are being honed. These procedures can potentially restore lymphatic drainage, lessening swelling in affected areas.
- Gene therapy is also emerging as a promising strategy. The idea here is to modify the expression of specific genes involved in lymphatic function, potentially restoring normal flow despite underlying issues.
- Novel physical therapies, including manual lymphatic drainage and advanced compression methods, are also evolving, aiming not just to manage symptoms but to target root causes.
Incorporating these strategies could signify a shift in how we approach lymphedema management altogether.
The Role of Biotechnology
Biotechnology plays an increasingly crucial role in the fight against lymphedema. It's not just about crafting new therapies but also about refining our understanding of existing treatments.
Advanced biologic agents are on the rise, including proteins created to enhance lymphatic function or reduce inflammation—shifting the focus from merely treating symptoms to addressing the underlying issues that lead to lymphedema. Furthermore, biosensors are in development, aimed at enabling real-time monitoring of tissue fluid dynamics. This can guide individualized therapy adjustments based on a patient’s specific needs.
- Moreover, personalized medicine is becoming a reality in lymphedema treatment, where genetic profiles inform therapy choices, hoping to increase effectiveness and minimize side effects.
- The integration of artificial intelligence in diagnosing and monitoring lymphedema offers new possibilities. Machine learning algorithms can analyze vast troves of patient data, identifying patterns that might go unnoticed in traditional assessments.
Overall, a multi-faceted approach—leveraging innovative therapies and cutting-edge biotechnology—offers hope for advancing lymphedema care.
"Understanding the future directions in lymphedema research encourages a proactive approach towards management, ultimately leading to innovations that could significantly enhance the quality of life for affected individuals."
Holding promise for effective management options, these research avenues are gaining traction, with many ongoing clinical trials aiming to further validate their efficacy. The future of lymphedema research is not just about addressing a problem; it’s about transforming the lives of those impacted by this debilitating condition.