From the Guidelines
Cardiac contraindications to dialysis include severe, unstable cardiovascular disease, and patients with these conditions may be better managed on peritoneal dialysis (PD) due to its advantages in hemodynamic control and less acute electrolyte shifts 1. When considering dialysis for patients with cardiac conditions, it is essential to weigh the risks and benefits of each modality.
- Severe cardiac disease may be a contraindication to hemodialysis (HD) due to the rapid changes in solute transport and volume shifts that can occur during the procedure 1.
- Peritoneal dialysis (PD) may be a better option for patients with severe cardiac disease, as it avoids these acute changes and provides better hemodynamic control, less acute hypokalemia, and better control of anemia 1.
- Patients with severe heart failure may also benefit from PD, as it has been proposed as a method of managing refractory heart failure even in patients without renal failure 1.
- However, it is crucial to individualize the assessment for each patient, considering the risks of dialysis against the urgent need for managing fluid overload, uremia, or electrolyte disturbances.
- In general, patients with severe, unstable cardiovascular disease, such as recent myocardial infarction, unstable angina, severe heart failure with hypotension, and life-threatening cardiac arrhythmias, may require alternative renal replacement therapies, such as continuous renal replacement therapy (CRRT), which provides slower fluid removal and less hemodynamic instability than conventional hemodialysis.
From the Research
Cardiac Contraindications to Dialysis
The cardiac contraindications to dialysis are not explicitly stated in the provided studies. However, the studies discuss various cardiovascular complications that can occur in dialysis patients, including:
- Coronary artery disease 2
- Congestive heart failure 2
- Pericarditis 2
- Sudden cardiac death (SCD) 3, 4
- Acute coronary syndromes 3
- Atrial fibrillation 3
- Ventricular arrhythmia 4
Risk Factors for Cardiac Complications
The studies identify several risk factors for cardiac complications in dialysis patients, including:
- Classic cardiac risk factors such as diabetes mellitus, hypertension, dyslipidemia, and smoking 2
- Uremia-associated risk factors such as hyperparathyroidism, hypoalbuminemia, hyperhomocysteinemia, and elevated levels of apolipoprotein (a) 2
- Electrolytic and plasma volume shifts during dialysis sessions 4
- Severe ischemic heart disease and left ventricular hypertrophy 4
Management of Cardiac Complications
The studies discuss various management strategies for cardiac complications in dialysis patients, including:
- Risk factor modification and medical therapy such as aspirin, beta blockers, angiotensin converting enzyme (ACE) inhibitors, and lipid-lowering agents 2
- Revascularization, including coronary artery bypass grafting and percutaneous transluminal coronary angioplasty 2
- Optimal dialysis and medical therapy for congestive heart failure 2
- Intensive dialysis for pericarditis 2
- Implantable cardioverter defibrillators for sudden cardiac death 3, 4