Arteriosclerosis / Atherosclerosis

Arteriosclerosis and atherosclerosis are related cardiovascular conditions affecting the arteries in birds, with atherosclerosis being the specific type most commonly encountered in avian species. Arteriosclerosis is a general term referring to hardening and loss of elasticity in arterial walls, while atherosclerosis specifically involves the buildup of fatty deposits, cholesterol, inflammatory cells, and fibrous tissue within artery walls forming plaques. In birds, these conditions commonly affect the major arteries, particularly the aorta and its branches, leading to progressive cardiovascular disease. Atherosclerosis is remarkably common in certain parrot species, particularly Amazon parrots, African grey parrots, and cockatiels, where it represents a leading cause of morbidity and mortality.

The development of atherosclerosis in birds follows a progressive course that may span years or even decades. The process begins when damage to the arterial lining allows lipids and cholesterol to penetrate into the vessel wall. Inflammatory cells are recruited to the site, and over time, fatty streaks develop that gradually enlarge into raised plaques. These plaques consist of a core of lipids and dead cells covered by a fibrous cap. As plaques grow, they narrow the arterial lumen, reducing blood flow to tissues supplied by the affected vessels. The plaques also weaken the arterial wall, predisposing to complications including aneurysm formation. Eventually, plaques may rupture, triggering acute events such as stroke or heart attack.

The impact of atherosclerosis on a bird's health can range from subclinical to fatal, depending on the extent and location of arterial involvement. Early or mild disease may produce no noticeable symptoms, with birds appearing completely healthy despite significant arterial changes. As disease progresses, reduced blood flow may affect organ function, potentially causing symptoms related to the affected areas. Severe atherosclerosis can lead to serious complications including heart disease, stroke, aneurysm formation, and sudden death. The condition is particularly concerning because it often progresses silently until serious complications occur, making prevention through appropriate diet and lifestyle management critically important.

Treatment of atherosclerosis in birds focuses primarily on slowing disease progression and managing complications, as existing plaques cannot be fully reversed with available treatments. Dietary modification is the cornerstone of management, involving transition to low-fat, heart-healthy nutrition. Medications may be used to manage cholesterol levels and address complications. Weight management and lifestyle modifications support cardiovascular health. Early detection through regular avian veterinary care allows intervention before disease becomes advanced. Because atherosclerosis develops over many years, prevention through lifelong appropriate nutrition offers the best opportunity for avoiding this common and serious condition in susceptible bird species.

The primary cause of atherosclerosis in birds is the deposition of cholesterol and lipids within arterial walls, a process initiated by damage to the arterial lining and perpetuated by ongoing inflammatory processes. The arterial endothelium, the inner lining of blood vessels, normally provides a barrier that prevents blood components from entering the vessel wall. When this lining is damaged by various factors including high blood lipid levels, hypertension, or inflammatory processes, lipids can penetrate into the vessel wall. Once within the wall, these lipids trigger an inflammatory response that recruits white blood cells and initiates a cascade of events leading to plaque formation. This process is fundamentally similar to atherosclerosis in humans and other mammals.

Genetic and species-related factors play a significant role in atherosclerosis susceptibility in birds. Amazon parrots demonstrate remarkably high prevalence of atherosclerosis, with some studies documenting arterial disease in the majority of older birds examined at necropsy. African grey parrots similarly show elevated susceptibility. This species predisposition strongly suggests genetic factors affecting lipid metabolism, inflammatory responses, or vascular biology. The specific genes involved have not been identified, but the striking differences between species indicate inherited susceptibility. Within susceptible species, individual variation in disease development may reflect additional genetic factors influencing risk.

Dietary factors represent the most important modifiable cause of atherosclerosis in captive birds. High-fat diets, particularly those based heavily on seeds, provide excessive calories and promote elevated blood cholesterol and lipid levels. Many popular seed types, including sunflower seeds and peanuts, are high in fat and contribute significantly to atherosclerotic disease when fed in excess. Human foods shared with pet birds, including cheese, butter, meat, and processed foods, often contain saturated fats and cholesterol that promote plaque formation. The transition from wild diets, which are typically lower in fat and higher in fiber, to energy-dense captive diets has contributed significantly to the high prevalence of atherosclerosis in companion birds.

Obesity and sedentary lifestyle contribute to atherosclerosis risk through multiple mechanisms. Overweight birds have altered lipid metabolism, with elevated blood cholesterol and triglyceride levels that promote plaque formation. Obesity is associated with chronic low-grade inflammation that accelerates vascular disease. Captive birds often have limited opportunity for exercise compared to their wild counterparts, reducing cardiovascular fitness and caloric expenditure. The combination of high-calorie diets and limited activity creates an energy surplus that promotes both obesity and hyperlipidemia. Chronic stress in captive birds may also contribute through hormonal effects on metabolism and inflammation.

The mechanism of atherosclerosis development involves a progressive cascade of cellular and molecular events within the arterial wall. Initial endothelial damage allows low-density lipoprotein particles to enter the vessel wall, where they become oxidized and trigger inflammatory responses. Monocytes are attracted to the site and differentiate into macrophages that engulf lipids, becoming foam cells. Accumulation of foam cells and extracellular lipids forms the fatty streak, the earliest visible lesion. Over time, smooth muscle cells migrate into the lesion and produce connective tissue, creating a fibrous cap over the lipid core. Plaques may remain stable for extended periods or may become unstable and prone to rupture, which can trigger acute thrombotic events. Progressive growth of plaques narrows the arterial lumen, reducing blood flow to downstream tissues.

Early warning signs of atherosclerosis in birds are typically absent or extremely subtle, as the disease develops gradually over years without producing obvious symptoms in its initial stages. Birds with early atherosclerosis usually appear completely healthy, maintaining normal activity, appetite, and behavior despite developing arterial plaques. This asymptomatic phase may continue for many years, during which significant vascular damage accumulates silently. The challenge of early detection lies in this lack of obvious warning signs, making regular veterinary monitoring and proactive management based on risk factors essential for susceptible species. Some birds may show subtle signs of reduced cardiovascular reserve that could theoretically indicate developing disease.

As atherosclerosis progresses, symptoms may emerge related to reduced blood flow or organ dysfunction. General symptoms might include decreased exercise tolerance, with birds tiring more easily during activity or showing reluctance to fly. Reduced activity level and increased resting time may be observed. Some birds may show subtle respiratory changes if cardiac function is affected. Appetite changes or weight fluctuations might occur. However, these symptoms are nonspecific and easily attributed to other causes or dismissed as normal aging. Many birds continue to show minimal symptoms even as disease becomes moderately advanced, which contributes to the often late recognition of atherosclerosis.

Behavioral changes associated with atherosclerosis may include decreased interest in activities the bird previously enjoyed, such as playing, vocalizing, or interacting with family members. The bird may seem quieter or less energetic than in younger years. Changes in sleep patterns, with increased drowsiness or periods of inactivity, might be noted. Some birds become less responsive or appear distracted. Reduced vocalization or changes in voice quality may occur. These changes are often gradual and may be attributed to normal aging rather than recognized as potential signs of underlying cardiovascular disease. The absence of dramatic symptoms allows disease to progress undetected.

Physical signs of advanced atherosclerosis may become apparent as disease complications develop. Signs of heart failure, if it develops, might include labored breathing, reduced exercise tolerance, and potentially ascites or fluid accumulation in body cavities. Cyanosis, a bluish discoloration indicating poor oxygenation, may be visible in severe cases but is difficult to detect in birds with pigmented skin. Weakness or instability may indicate compromised circulation. Sudden changes in neurological function could indicate stroke. Weight loss may occur with advanced disease. However, many birds with significant atherosclerosis show no obvious physical abnormalities until acute complications occur.

Symptom progression in atherosclerosis typically follows a pattern of gradual, often imperceptible decline over years, potentially punctuated by acute events. The slow accumulation of arterial plaques produces slowly developing organ dysfunction that may not be noticed until substantial damage has occurred. Some birds experience stable disease for extended periods with minimal symptoms. However, acute complications can occur suddenly at any point in the disease course. Stroke may cause sudden neurological symptoms including paralysis, disorientation, or loss of balance. Heart attack may cause sudden collapse or death. Aneurysm rupture from weakened arterial walls can be instantly fatal. These acute events may be the first obvious indication of atherosclerosis.

Emergency symptoms potentially related to atherosclerosis complications include sudden collapse, acute weakness, or loss of consciousness, which may indicate stroke, heart attack, or aneurysm rupture. Sudden onset of severe breathing difficulty could indicate cardiac crisis. Acute changes in neurological function, including paralysis, head tilt, or inability to perch, may indicate stroke. Rapid deterioration from apparently normal condition to crisis should be treated as an emergency regardless of suspected cause. Unfortunately, acute cardiovascular events from atherosclerosis are often fatal, emphasizing the critical importance of prevention and early intervention before complications develop.

The initial examination for a bird suspected of having atherosclerosis or cardiovascular risk factors begins with comprehensive evaluation by an experienced avian veterinarian. Detailed history taking includes assessment of diet, including all foods offered and actually consumed, activity level and exercise opportunities, and any previous health concerns. Physical examination includes assessment of body condition, with particular attention to obesity, which is a major risk factor. Cardiovascular assessment involves listening to the heart for rate, rhythm, and any abnormal sounds, and evaluating respiratory pattern. The veterinarian assesses for signs of cardiovascular compromise, though early atherosclerosis typically produces no detectable physical abnormalities.

Diagnostic testing for atherosclerosis and cardiovascular disease employs multiple modalities. Blood work is essential and should include a lipid panel measuring cholesterol and triglyceride levels, which are often elevated in birds with atherosclerosis. Complete blood count and biochemistry panel assess overall health and organ function. Radiographs may reveal cardiac enlargement or changes in great vessel appearance in advanced disease. Echocardiography, or cardiac ultrasound, provides detailed assessment of heart structure and function, potentially revealing changes associated with chronic cardiovascular disease. Advanced imaging including CT scan or MRI may visualize arterial plaques directly, though these modalities are not universally available.

Differential diagnosis for symptoms potentially caused by atherosclerosis includes numerous conditions. Heart disease from other causes, including cardiomyopathy, valvular disease, or infectious myocarditis, may produce similar symptoms. Respiratory disease may mimic some cardiovascular symptoms. Metabolic conditions affecting energy and activity levels must be considered. Neurological conditions other than stroke may produce similar symptoms. When acute events occur, differentiating between stroke, heart attack, and other causes of collapse requires comprehensive evaluation. In cases of sudden death, necropsy examination is valuable for establishing the cause and provides important information for management of remaining birds.

Definitive diagnosis of atherosclerosis ideally involves direct visualization of arterial plaques, though this can be challenging in living birds. Advanced imaging techniques such as CT angiography may reveal arterial changes consistent with atherosclerosis. Elevated blood lipid levels support the diagnosis but do not confirm the presence of plaques. Echocardiographic findings of cardiac changes may indicate secondary effects of vascular disease. Ultimately, definitive diagnosis is often made at necropsy, where arterial plaques can be directly observed and examined histologically. The practical approach for living birds combines assessment of risk factors, lipid levels, and any clinical or imaging findings to establish presumptive diagnosis and guide management.

Emergency treatment for acute complications of atherosclerosis focuses on supportive care and stabilization. Birds presenting with suspected stroke, heart attack, or other acute cardiovascular events require immediate intensive care. Oxygen supplementation addresses respiratory compromise. Fluid therapy supports circulation, though care must be taken to avoid fluid overload in birds with cardiac compromise. Thermal support maintains body temperature. Medications may include anti-inflammatory drugs, cardiovascular support medications, and treatments appropriate to the specific presentation. The prognosis for acute cardiovascular events is often guarded to poor, and some birds do not survive to the point where treatment can be initiated. Rapid recognition and intervention provide the best chance for survival.

Medical management of atherosclerosis focuses on slowing disease progression, managing lipid levels, and addressing complications. Cholesterol-lowering medications, including statins, have been used in birds, though their efficacy is less well established than in humans. Omega-3 fatty acid supplementation may help improve lipid profiles. Medications to address cardiac complications may be necessary as disease progresses. Anti-inflammatory medications may theoretically help slow the inflammatory component of disease progression. Any medications must be carefully dosed for the individual bird and monitored for effectiveness and side effects. Medical management is typically combined with dietary intervention for maximum benefit.

Dietary management represents the cornerstone of treatment and prevention for atherosclerosis in birds. Transition from high-fat diets, particularly seed-based diets, to balanced, low-fat nutrition is essential. High-quality formulated pellets designed for the species should form the dietary foundation. Fresh vegetables, particularly dark leafy greens, provide essential nutrients without excessive fat. Appropriate fruits in moderation add variety and antioxidants. High-fat foods including seeds, nuts, and human foods must be strictly limited or eliminated. Dietary transition must be managed carefully to ensure continued adequate intake while changing food preferences. Working with an avian veterinarian or avian nutritionist helps develop appropriate diet plans.

Supportive care for birds with atherosclerosis addresses overall health and quality of life. Weight management through appropriate diet and encouraged exercise helps reduce cardiovascular burden and improve metabolic parameters. Environmental modifications reduce stress, which can affect cardiovascular health. Providing opportunities for safe exercise supports cardiovascular fitness without excessive strain. Regular monitoring tracks disease progression and treatment response. Addressing concurrent health conditions reduces overall physiological stress. The goal is to optimize overall health while managing the specific challenges of cardiovascular disease.

Alternative and complementary approaches may supplement conventional management of atherosclerosis. Antioxidant supplementation, including vitamins E and C, may help reduce oxidative damage to blood vessels. Omega-3 fatty acids from appropriate sources support cardiovascular health. Some herbal preparations have been proposed for cardiovascular benefit, though scientific evidence in birds is limited. Any supplements should be discussed with the avian veterinarian to ensure safety and appropriate dosing. Alternative approaches should complement rather than replace proven dietary and medical interventions.

Treatment decision factors for atherosclerosis include the extent of disease, presence of complications, the bird's overall condition, and practical considerations. Birds with early disease and elevated risk factors may respond well to dietary intervention alone. More advanced disease may require medication in addition to dietary changes. Birds with established complications need management of both the underlying atherosclerosis and its consequences. Cost of ongoing management, owner ability to implement dietary changes and administer medications, and quality of life considerations all factor into treatment planning. Honest discussion of the chronic, progressive nature of the disease and realistic expectations helps owners make informed decisions.

Recovery concepts for atherosclerosis differ from acute conditions because the disease involves chronic, progressive arterial changes that cannot be fully reversed. Once plaques have formed in arterial walls, they represent permanent structural alterations. The goal of management is therefore not cure but rather slowing or halting disease progression and preventing complications. With appropriate intervention, disease progression can be significantly slowed, and some birds may remain stable for extended periods. Lipid levels typically improve with dietary modification, reducing the drive for further plaque development. However, existing plaques remain, and the risk of complications persists.

Post-diagnosis management requires ongoing, lifelong attention to diet and lifestyle factors. Dietary changes must be maintained permanently, as returning to inappropriate nutrition would likely accelerate disease progression. If medications are prescribed, they typically must be continued indefinitely. Regular veterinary monitoring allows assessment of treatment response and early detection of any complications. Owners must remain committed to the ongoing nature of management, understanding that atherosclerosis requires lifelong attention rather than a time-limited treatment course. Consistency in diet and care provides the best opportunity for long-term stability.

Prognosis factors for atherosclerosis include the extent of disease at diagnosis, response to treatment, and whether complications develop. Birds diagnosed early with modest disease changes and elevated lipid levels may have relatively good prognosis with aggressive management. Advanced disease with significant arterial narrowing or complications carries more guarded prognosis. Response to dietary modification and medical management influences outcomes, with birds showing improved lipid levels having better prospects. The presence of complications including heart disease, stroke history, or aneurysm significantly worsens prognosis. Ongoing risk of acute events means that even apparently stable disease can suddenly produce life-threatening complications.

The long-term outlook for birds with atherosclerosis depends on multiple factors but generally requires cautious optimism balanced with realistic expectations. Some birds live for many years with managed disease, maintaining good quality of life with appropriate care. Others experience progressive decline or acute complications despite best efforts. Owners must understand that while management can significantly improve outcomes, it cannot eliminate risk. Regular veterinary monitoring helps detect changes early, potentially allowing intervention before crisis develops. Advance planning for end-of-life scenarios, including discussion of what might be done if acute events occur, helps prepare owners for various possibilities. The focus throughout should be on maximizing quality of life for whatever time the bird has.

Environmental prevention strategies for atherosclerosis support overall cardiovascular health through stress reduction and exercise promotion. Housing should provide opportunities for physical activity, including space for climbing, playing, and ideally supervised flight. Environmental enrichment keeps birds mentally engaged and physically active. Minimizing chronic stressors supports healthy metabolic function and reduces physiological strain. Maintaining a smoke-free environment is important, as cigarette smoke exposure has been associated with vascular damage. Good air quality reduces exposure to potentially harmful airborne substances. Social interaction appropriate for the species supports psychological wellbeing, which influences physical health.

Quarantine and disease prevention, while not directly preventing atherosclerosis, support overall health that may influence cardiovascular disease risk. New birds should be quarantined and examined before introduction to established households. Preventing infectious diseases reduces inflammatory burden that could potentially contribute to vascular damage. Maintaining overall health through disease prevention allows the body to better regulate metabolic processes. While the connection between infectious disease and atherosclerosis is not as direct as dietary factors, supporting general health through good husbandry practices contributes to cardiovascular wellbeing.

Dietary prevention represents the most critical aspect of atherosclerosis prevention in birds. From the earliest age possible, birds should be fed balanced, species-appropriate diets that are low in fat. High-quality formulated pellets designed for the specific species should form the dietary foundation, as these are formulated to provide balanced nutrition without excessive fat. Fresh vegetables, particularly dark leafy greens and orange vegetables, provide essential nutrients and antioxidants. Appropriate fruits in moderation add variety. Seeds should be strictly limited and used only as occasional treats if at all, not as dietary staples. Nuts should be limited due to high fat content. Human foods, particularly fatty foods, processed foods, and those high in sodium, should be avoided. Preventing obesity through appropriate portions and avoiding overfeeding complements dietary composition.

Regular avian veterinary care provides essential monitoring for cardiovascular risk factors and early disease detection. Annual wellness examinations should include assessment of body condition and discussion of diet and lifestyle. Blood work including lipid panels allows early identification of elevated cholesterol and triglycerides in at-risk birds. More frequent monitoring may be appropriate for birds of highly susceptible species such as Amazon parrots and African grey parrots, or for birds with elevated risk factors. Establishing baseline cardiovascular parameters in younger birds provides comparison data for detecting changes over time. Proactive management based on risk factors allows intervention before disease develops.

Early intervention when risk factors are identified maximizes opportunity for prevention. If blood lipid levels are elevated, aggressive dietary modification should be implemented immediately, before significant arterial damage occurs. Working with an avian veterinarian to develop appropriate diet plans helps ensure successful implementation. Weight management through portion control and exercise promotion addresses obesity. Medications may be considered for birds with significantly elevated lipid levels that do not respond adequately to dietary changes alone. Regular monitoring of response to intervention allows adjustment of management as needed. Understanding that atherosclerosis develops slowly over years emphasizes the value of lifelong preventive care from the earliest age.

Daily management of a bird with atherosclerosis requires consistent attention to diet, which is the most controllable factor affecting disease progression. Strict adherence to the prescribed diet is essential, with careful avoidance of high-fat foods and treats that might undermine management efforts. All family members and anyone who interacts with the bird must understand dietary restrictions and the importance of compliance. Daily food offerings should be measured to ensure appropriate portions. Any prescribed medications must be administered as directed. Daily observation of the bird's activity level, appetite, and behavior helps detect any changes that might indicate disease progression or complications.

Home environment modifications support cardiovascular health and overall wellbeing. Housing should encourage physical activity without requiring exhausting exertion, with appropriate space for comfortable movement and play. Perches should be appropriately sized and positioned for safe access. Temperature should be maintained in a comfortable range to reduce metabolic stress. Environmental enrichment provides mental stimulation and encourages activity. Minimize stressors in the environment, as chronic stress can affect cardiovascular health through hormonal mechanisms. Social interaction appropriate for the bird's needs supports psychological wellbeing, which influences physical health.

Maintaining quality of life for birds with atherosclerosis involves balancing health management with the bird's need for enjoyment and enrichment. While dietary restrictions are necessary, offering a variety of permitted foods helps maintain interest in eating. Provide appropriate toys and activities that encourage movement without excessive strain. Continue positive interactions and bonding activities with family members. Allow the bird to engage in normal behaviors and activities at their own pace. The focus should be on helping the bird enjoy comfortable, engaged days while managing the underlying disease. Quality of life should not be sacrificed entirely for disease management.

Ongoing monitoring and veterinary communication are essential components of managing atherosclerosis. Regular veterinary examinations allow professional assessment of disease status and adjustment of management as needed. Periodic blood work monitors lipid levels and overall health parameters. Cardiovascular imaging may be repeated to assess disease progression. Owners should maintain records of diet, weight, activity level, and any observations to share with the veterinary team. Criteria for urgent veterinary contact should be understood, including any sudden changes in condition, breathing difficulty, weakness, or neurological changes. Open communication with the veterinary team optimizes care.

Caregiver support acknowledges the long-term commitment required for managing chronic disease. Caring for a bird requiring lifelong dietary management and monitoring requires dedication and consistency. Connecting with other bird owners facing similar challenges through support groups or online communities provides practical advice and emotional support. Understanding that management requires lifelong attention helps set appropriate expectations. Celebrating successes, such as improved lipid levels or maintained body weight, provides positive reinforcement. Discussing realistic expectations and quality of life considerations with the veterinary team helps owners make informed decisions about care throughout the bird's life.

Amazon parrots represent the species group with the highest documented prevalence of atherosclerosis among companion birds. Multiple studies have demonstrated remarkably high rates of atherosclerotic disease in various Amazon parrot species, with some studies finding arterial plaques in over 90% of older birds examined at necropsy. Yellow-naped Amazons, double yellow-headed Amazons, blue-fronted Amazons, and other species in the genus Amazona are all affected. The reasons for this extreme susceptibility are not fully understood but likely involve genetic factors affecting lipid metabolism. Captive dietary practices, particularly seed-based diets, compound genetic susceptibility. The long lifespan of Amazon parrots allows decades for disease to develop and progress. Owners of Amazon parrots should prioritize heart-healthy nutrition from the earliest age.

African grey parrots, including both Congo African greys and Timneh African greys, represent another species group with high prevalence of atherosclerosis. Studies have documented elevated rates of cardiovascular disease in this popular companion species. Like Amazon parrots, the susceptibility appears to have a genetic basis, compounded by inappropriate captive nutrition. African grey parrots are intelligent, long-lived birds that form strong bonds with owners, making their vulnerability to preventable cardiovascular disease particularly concerning. Cockatiels and other psittacine species may also develop atherosclerosis, though prevalence appears lower than in Amazon parrots and African grey parrots. Age is a significant risk factor across all species.

Screening recommendations for atherosclerosis in high-risk species should emphasize proactive monitoring rather than waiting for symptoms to develop. Annual wellness examinations should include assessment of diet and body condition, with frank discussion of cardiovascular risk factors. Blood lipid panels provide objective assessment of cholesterol and triglyceride levels and should be performed regularly in susceptible species. Echocardiography may be recommended for older birds to assess cardiac structure and function. Establishing baseline cardiovascular parameters in younger birds allows early detection of changes. Owners of Amazon parrots, African grey parrots, and other high-risk species should understand the critical importance of lifelong heart-healthy nutrition and should work closely with avian veterinarians to minimize cardiovascular disease risk.

Aneurysm represents one of the most serious complications that commonly co-occurs with atherosclerosis in birds. Atherosclerotic damage weakens arterial walls, creating conditions favorable for aneurysm formation. Aneurysms are outward bulges in weakened vessel walls that can enlarge progressively and may rupture, causing fatal internal hemorrhage. Birds with atherosclerosis should be considered at risk for aneurysm development. Management of atherosclerosis through dietary modification and other interventions may help reduce aneurysm risk, though existing aneurysms cannot be reversed. The relationship between these conditions underscores the importance of preventing atherosclerosis before serious vascular complications develop.

Other cardiovascular conditions commonly associated with atherosclerosis include heart disease, as reduced coronary blood flow and increased cardiac workload lead to progressive myocardial changes. Hypertension may develop in association with vascular disease. Stroke and other thromboembolic events may occur when plaques rupture or when reduced blood flow affects the brain. Peripheral vascular disease may affect blood flow to extremities. The systemic nature of atherosclerosis means that disease affects the entire vascular system, and complications may manifest in various organs depending on which arteries are most severely affected. Comprehensive cardiovascular assessment is important for birds with documented atherosclerosis.

Conditions that may exacerbate atherosclerosis or share risk factors include obesity, which promotes dyslipidemia and accelerates vascular disease. Diabetes and other metabolic disorders may compound cardiovascular risk, though diabetes is uncommon in birds. Chronic inflammatory conditions may contribute to vascular damage. Hypothyroidism, when present, can affect lipid metabolism. Addressing these concurrent conditions, when present, helps optimize overall cardiovascular management. Conversely, birds being evaluated for these conditions should also be assessed for atherosclerosis. The interconnected nature of metabolic and cardiovascular disease emphasizes the importance of comprehensive health management.