Rose A G, Losman J G
Arch Pathol Lab Med. 1978 Jun;102(6):285-6.
Surgical replacement of the mitral valve by a prosthetic valve may lead to localized disruption of atrioventricular continuity resulting from direct surgical trauma or from delayed rupture of the weakened annulus. Such disruption leads to subepicardial hematoma formation that may remain localized if pericardial adhesions are present. Of two patients who suffered this complication, the first died of rupture of the epicardial hematoma. The hemorrhage in the second patient was contained by pericardial adhesions and had organized, thus resulting in a subannular left ventricular false aneurysm. The aneurysm was found incidentally at autopsy after the patient died of cerebral embolism from prosthetic valve thrombi.
用人工瓣膜进行二尖瓣的外科置换可能会由于直接手术创伤或薄弱瓣环的延迟破裂导致房室连续性的局部破坏。这种破坏会导致心外膜下血肿形成，如果存在心包粘连，血肿可能局限。在两名发生这种并发症的患者中，第一名患者死于心外膜血肿破裂。第二名患者的出血被心包粘连包裹并已机化，从而形成了瓣环下左心室假性动脉瘤。该患者死于人工瓣膜血栓导致的脑栓塞，尸检时偶然发现了这个动脉瘤。
