- Research Article
1
- 10.1161/circheartfailure.111.961276
Response to Campbell: Is This a Case of Constriction?
- May 01, 2011
- Circulation: Heart Failure
- Kanu Chatterjee
The patient presented by Dr Patricia Campbell1 from the Advanced Heart Disease Section of Brigham and Women's Hospital exemplifies challenges that surround the possible diagnosis of constrictive pericarditis. Constrictive pericarditis is a pericardial compressive syndrome due to fibrosis, scarring, and occasionally calcification of the pericardium. The primary pathophysiological consequence is impairment of ventricular filling. The hemodynamic abnormalities are characterized by elevation of both right and left ventricular filling pressures and equalization of right and left ventricular diastolic pressures. It should be appreciated, however, that there are a number of pathological conditions that can be associated with equalization of ventricular diastolic pressures (Table). View this table: Table. Examples of Conditions That Can Cause Equalization of Ventricular Diastolic Pressures The best-recognized differential diagnosis for equalization of ventricular diastolic pressures is presented by the pair of constrictive pericarditis and restrictive cardiomyopathy. Cardiac catheterization and measurements of intracardiac pressures frequently are performed to distinguish between these 2 conditions. Constrictive pericarditis can be caused by infection, such as tuberculosis, noninfectious inflammatory disorders, and collagen vascular diseases such as systemic lupus erythematosus. It can also occur as a complication of radiation therapy or traumatic hemorrhagic pericardial effusion. In the patient under discussion, there was no history suggesting tuberculosis, collagen vascular disease, or previous symptomatic pericarditis and no prior radiation or chest trauma. Constrictive pericarditis, however, is being increasingly encountered after open heart surgery. In ≈2% of patients after coronary artery bypass surgery, constrictive pericarditis develops. The patient under discussion had previous triple-vessel coronary artery bypass surgery, and thus, constrictive pericarditis needs to be considered in his differential diagnosis, which was particularly relevant in this patient referred to a cardiac surgeon for consideration of a pericardial stripping procedure. Presentation of constrictive pericarditis within 6 months of cardiac surgery would be unusual, however, and some exertional dyspnea had preceded surgery. …
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