Right-Sided Congestive Heart Failure in Cattle: Brisket Edema and Heart Disease
- See your vet immediately. Brisket edema, jugular vein distension, weakness, and labored breathing can point to right-sided heart failure in cattle.
- This is a syndrome, not one single disease. Common triggers include high-altitude pulmonary hypertension (brisket disease), traumatic pericarditis, severe lung disease, and some valve infections.
- Fluid buildup under the brisket often means blood is backing up in the venous system because the right side of the heart is failing to pump effectively.
- Early veterinary evaluation may include a farm exam, heart and lung auscultation, ultrasound, bloodwork, and sometimes pulmonary arterial pressure testing in high-altitude herds.
- Prognosis is guarded to poor once marked edema, ascites, or recumbency develop, but the best next step depends on the cause, stage, altitude, and herd goals.
What Is Right-Sided Congestive Heart Failure in Cattle?
Right-sided congestive heart failure means the right side of the heart can no longer move blood forward efficiently. When that happens, pressure builds in the veins, and fluid leaks into tissues and body cavities. In cattle, that often shows up as brisket edema along the lower chest, swelling under the jaw, abdominal fluid, and enlarged or pulsating jugular veins. (merckvetmanual.com)
In cattle, people often use the term brisket disease when high-altitude pulmonary hypertension leads to right heart enlargement and failure. But brisket edema is not limited to altitude problems. Similar signs can also happen with traumatic pericarditis, severe chronic lung disease, or right-sided valve disease such as tricuspid endocarditis. (merckvetmanual.com)
This condition is always serious because it affects circulation, oxygen delivery, and comfort. Some cattle decline gradually with weight loss and exercise intolerance. Others worsen quickly and become weak, recumbent, or collapse with stress. That is why visible brisket swelling should never be treated as a cosmetic issue or watched at home without veterinary guidance. (merckvetmanual.com)
Symptoms of Right-Sided Congestive Heart Failure in Cattle
- Brisket edema or swelling along the lower chest
- Distended or pulsating jugular veins
- Labored breathing or exercise intolerance
- Ventral abdominal swelling or ascites
- Submandibular edema
- Poor appetite and weight loss
- Diarrhea or loose manure
- Weakness, reluctance to move, or recumbency
- Cyanosis, bulging eyes, or collapse
When to worry: right away. Brisket edema is a red-flag finding in cattle, especially when it appears with jugular distension, breathing effort, weakness, or poor appetite. In high-altitude cattle, these signs can fit brisket disease. In other cattle, they may point to traumatic pericarditis, severe pulmonary disease, or another life-threatening cause. Advanced cases can become recumbent or die with exertion, so prompt evaluation by your vet is important. (merckvetmanual.com)
What Causes Right-Sided Congestive Heart Failure in Cattle?
One major cause in US cattle is bovine high-mountain disease, also called brisket disease. At higher elevations, low oxygen levels can trigger pulmonary vasoconstriction and pulmonary hypertension. Over time, the right ventricle has to pump against that higher pressure, first becoming enlarged and then failing. Merck notes this problem is most associated with cattle raised above about 1,524 meters (5,000 feet), with substantial impact in states such as Colorado, Wyoming, New Mexico, and Utah. (merckvetmanual.com)
Other causes are not altitude-related. Traumatic reticuloperitonitis can progress to traumatic pericarditis if a sharp metal object penetrates toward the heart sac, leading to inflammation, impaired filling, and eventual right-sided failure. Right-sided endocarditis, especially involving the tricuspid valve, can also produce murmurs and congestive signs. Severe chronic lung disease, pulmonary damage from toxins or parasites, and myocardial fat deposition may create pulmonary hypertension that mimics brisket disease. (merckvetmanual.com)
Because brisket edema has several possible causes, the visible swelling is only the starting point. Your vet will need to sort out whether the main problem began in the lungs, heart muscle, heart valves, pericardium, or management environment. That distinction matters because treatment options, herd implications, and prognosis can be very different. (merckvetmanual.com)
How Is Right-Sided Congestive Heart Failure in Cattle Diagnosed?
Diagnosis starts with a careful farm exam and history. Your vet will look at altitude exposure, age, recent movement to higher ground, appetite, weight loss, exercise tolerance, and any chance of hardware disease. On exam, they may find brisket edema, jugular distension or pulsation, abnormal heart sounds or murmurs, respiratory effort, cyanosis, abdominal distension, or weakness. (merckvetmanual.com)
In suspected high-altitude cases, pulmonary arterial pressure (PAP) testing is an important herd and individual tool, and Merck states diagnosis of bovine high-mountain disease is based on clinical signs plus PAP measurement greater than 50 mm Hg. Ultrasound can help assess pleural or abdominal fluid and may support evaluation of the heart or pericardium in field settings. Bloodwork is often used to assess overall health, inflammation, dehydration, and organ effects, even though it does not confirm heart failure by itself. (merckvetmanual.com)
If the cause is unclear or the animal dies, necropsy can be very valuable for confirming pulmonary hypertension, pericarditis, endocarditis, or other structural disease. That information can guide herd decisions, especially in breeding programs at altitude where PAP scores and family history are used to reduce future risk. (merckvetmanual.com)
Treatment Options for Right-Sided Congestive Heart Failure in Cattle
Spectrum of Care means you have options. Here are treatment tiers at different price points.
Budget-Conscious Care
- Farm call and physical exam
- Assessment of severity, welfare, and likely cause
- Immediate stress reduction and limited handling
- Relocation to lower elevation when brisket disease is suspected and practical
- Discussion of culling, salvage timing, or humane euthanasia when prognosis is poor
Recommended Standard Treatment
- Farm call and full exam
- Targeted bloodwork such as CBC and chemistry profile
- Field ultrasound to look for fluid, pericardial disease, or other complications
- Cause-directed medical care chosen by your vet
- Relocation to lower altitude for suspected bovine high-mountain disease
- Monitoring plan for appetite, breathing effort, edema, and mobility
Advanced / Critical Care
- Comprehensive workup with repeat exams and advanced imaging where available
- Pulmonary arterial pressure testing in high-altitude breeding or replacement cattle
- Referral-level evaluation for complex cardiac or pulmonary disease
- Intensive supportive care when appropriate
- Postmortem diagnostics if the animal dies or euthanasia is elected, to guide herd prevention
Cost estimates as of 2026-03. Actual costs vary by location, clinic, and individual case.
Questions to Ask Your Vet About Right-Sided Congestive Heart Failure in Cattle
Bring these questions to your vet appointment to get the most out of your visit.
- Does this swelling look most consistent with heart failure, or could it be another cause of edema?
- Is brisket disease from high altitude likely in this cow, based on our elevation and herd history?
- Do you hear a murmur or signs that make you worry about pericarditis or valve infection?
- Which diagnostics are most useful first in this case: ultrasound, bloodwork, PAP testing, or something else?
- Would moving this animal to a lower elevation still be worthwhile, or does the stage seem too advanced?
- What are the realistic treatment options for this cow, and what are the tradeoffs of each?
- What signs would mean the prognosis is poor enough to discuss culling or humane euthanasia?
- Do we need to evaluate related animals or breeding decisions to reduce future cases in the herd?
How to Prevent Right-Sided Congestive Heart Failure in Cattle
Prevention depends on the cause. For bovine high-mountain disease, the most effective long-term strategy is herd selection. Merck emphasizes that susceptibility to exaggerated pulmonary vascular constriction is heritable, and prevention is based on pulmonary arterial pressure testing plus family-history and breeding decisions. This is especially important in herds grazing at moderate to high elevations. (merckvetmanual.com)
Management also matters. Avoid moving susceptible cattle abruptly to higher elevations when possible, and watch closely during stressful periods such as weaning and seasonal weather swings, when clinical disease may become more obvious. If your herd has had brisket disease before, work with your vet on a monitoring plan for replacements, breeding animals, and any cattle that begin to lag, breathe harder, or develop ventral swelling. (merckvetmanual.com)
For non-altitude causes, prevention focuses on reducing the underlying risks. Good feed and environment management can lower the chance of cattle ingesting metal and developing hardware disease. Prompt attention to chronic respiratory disease and other systemic illness may also reduce the chance of secondary heart strain. Because brisket edema can reflect several serious disorders, early veterinary evaluation is one of the most practical prevention tools for limiting losses. (merckvetmanual.com)