| pericardial reflex | A vagal reflex seen during operations involving pericardial manipulation; characterised by signs of vagal stimulation (bradycardia and arterial hypotension). (05 Mar 2000) |
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| pericardial rub | A to-and-fro grating, rasping, or, rarely, creaking sound heard over the heart in some cases of pericarditis, due to rubbing of the inflamed pericardial surfaces as the heart contracts and relaxes; during normal sinus rhythm it is usually triphasic; during any rhythm it may be biphasic or uniphasic. Synonym: pericardial rub, pericardial friction rub. (05 Mar 2000) |
| pericardial sac | <anatomy> A tough fibrous membrane that envelops and protects the heart. (27 Sep 1997) |
| pericardial tamponade | <cardiology> A life-threatening clinical syndrome where there is a large collection of fluid (usually blood) inside the pericardial space that interferes with the haemodynamic performance of the heart. The end result is low blood pressure, shock and death if untreated. (27 Sep 1997) |
| pericardial tap | Needle drainage of the pericardium, usually accompanied by placement of an indwelling catheter for continuing drainage. Synonym: pericardial tap, pericardiocentesis. (05 Mar 2000) |
| pericardial veins | Several small veins from the pericardium emptying into the brachiocephalic veins or superior vena cava. Synonym: venae pericardiacae. (05 Mar 2000) |
| pericardial villi | Minute filiform projections from the surface of the serous pericardium. Synonym: villi pericardiaci. (05 Mar 2000) |
| pericardial window techniques | Surgical construction of an opening or window in the pericardium. It is often called subxiphoid pericardial window technique. (12 Dec 1998) |
| pericardian | pericardial |