In the absence of specific guidelines, these patients were treated according to the recommendations specific for the identified dysfunctions: pericarditis was treated with non-steroidal anti-inflammatory agents (Ibuprofen 400 mg twice/day), left ventricular systolic dysfunction with beta-blockers (especially in the presence of associated tachycardia), and/or small doses of angiotensin-converting enzyme inhibitors. This evidence concerns the gene ACE and pericarditis.