Doctor insights on:
Why Does A Patient In Renal Failure Have Decreased Cardiac Output
Not always related: Renal failure in and of itself is not realted to cardiac output, there are many things that can cause both renal failure and decreased cardiac output, but they are not always related. However if someone has really low cardiac output, one could develop renal failure b/c not enough blood is getting to the kidneys. ...Read moreSee 1 more doctor answer
The kidneys do several tasks. Dialysis is necessary when one or more of the following occur, that can't be remedied or palliated with medications: 1. Insufficient clearance of daily toxins in food and metabolic waste 2. Insufficient clearance of excess water 3. Dangerous electrolyte imbalance, ...Read more
Direct vs. indirect: Kidney failure can weaken the heart muscle (uremic cardiomyopathy), but this is pretty rare. A more common problem is fluid accumulation around the heart (pericardial efffusion), which can literally choke the heart (tamponade) but improves with extra dialysis. Or, more likely, the conditions that caused the kidney disease (commonly hypertension and/or diabetes) also are causing heart problems. ...Read more
Complex: Even though the mechanisms are complex, one way to understand is that if you lose the ability to filter your blood and eliminate extra fluid from your body (one of the kidney's main functions) your heart will be burdened with pumping a lot more blood than it was intended to do and will therefore fatigue and not pump as well (same as any other muscle would if forced to work "overtime"). ...Read moreSee 1 more doctor answer
Many reasons: Decreased cardiac output can contribute to reduced kidney function. Kidney disease is often associated with heart problems that reduce cardiac output. High blood pressure and volume overload with kidney failure can also reduce heart output. It's often difficult to sort out cause and effect in these situations. ...Read more
Cardiac transplant: Transplant survival rates have been improving over the past several years as better options exist in preventing rejection (better than 60% live 10 or more years). Diffuse post-transplant coronary arteriopathy tends to or relate more with late post-transplant events. Coexistant renal failure would also be a negative predictor on survival irrespective of transplant status (mortality 50% at 2 yrs). ...Read more
Sick muscle: The heart is supposed to pump out a certain amount with every heart beat, if that amount is too low, e.g. Low out put, the heart muscle is too weak to do it's job(failure). ...Read more
What are the signs and symptoms of left sided heart failure associated with decreased cardiac output?
Swelling: The left side of the heart pumps blood throughout your body. When it fails, it decreases blood flow to organs. This can cause kidney injury, liver injury, fatigue, shortness of breath with little exertion, swelling of the feet and legs, fluid build-up in the lungs, and difficulty sleeping flat due to shortness of breath. Medications and diet are important for this disease! ...Read more
What are the signs and symptoms of left sided heart failure due associated with decreased cardiac output?
Congestion: Breathlessness, especially with exertion. Easy fatigability. Impaired exercise capacity. These are early signs. Without treatment, one becomes short of breath resting, especially when lying down (orthopnea) and at night (paroxysmal nocturnal dyspnea). Eventually the right heart also fails leading to swelling (edema), abdominal fluid (ascites and effusions), and cachexia (wasting). ...Read more
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