realized in has material basis at all times has occurrent part heart pathological process fluid in the pericardial cavity cardiac tamponade SNOMEDCT_2010_1_31:266295005 SNOMEDCT_2010_1_31:155341007 DOID:115 A disease caused by the presence of fluid in the pericardial cavity (due to pericardial effusion), affecting negatively the heart's pumping function. A pericardial effusion in which fluid accumulates in the pericardium (the sac in which the heart is enclosed) and the pericardial spaces fills up faster than the pericardial sac can stretch. In CVDO, cardiac tamponade is defined as *being caused* by a pericardial effusion, rather than as *being* a pericardial effusion. disease_ontology SNOMEDCT_2010_1_31:194975004 pericardial tamponade MSH:D002305 Rose's tamponade UMLS_CUI:C0007177 NCI:C50481 SNOMEDCT_2010_1_31:35304003 ICD9CM:423.3 disease disease course