title: Five chambered heart or large atrial appendage aneurysm: A report of two cases.
abstract: BACKGROUND
  Isolated intrapericardial LAA aneurysm is a rare cardiac anomaly which manifests with angina, dyspnea on exertion (DOE), systemic embolization, arrhythmia, and congestive heart failure.
  
  
  METHODS
  A 30-year-old female and a 46-year-old male were referred for evaluation of abnormal cardiac contour on chest radiograph and echocardiographic findings and non-specific symptoms. Transesophageal echocardiography suggested left atrial appendage (LAA) mass filled with clots. The mass had no compression on cardiac chambers and global ejection fraction was within normal limits. The intraoperative diagnosis was isolated congenital LAA aneurysm. After confirmation of the diagnosis, it was resected. She was discharged with uneventful postoperative course. At follow-up she was asymptomatic.
  
  
  CONCLUSIONS
  These cases demonstrate the role of on-time surgical approaches in the prevention of fatal complication of this rare cardiac anomaly.
authors.affiliation: Department of Cardiovascular Surgery, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Mirmohammadsadeghi
authors.forename: Yalda
authors.initials: Y
authors.lastname: Kiani
authors.forename: Ali
authors.initials: A
authors.lastname: Nasr
authors.forename: Reihaneh
authors.initials: R
authors.lastname: Zavvar
authors.forename: Mohaddeseh
authors.initials: M
authors.lastname: Behjati
authors.forename: Majid
authors.initials: M
authors.lastname: Rabbani
authors.forename: Elham
authors.initials: E
authors.lastname: Majidi
authors.forename: Poya
authors.initials: P
authors.lastname: Mirmohammadsadeghi
keywords: Aneurysm; Clot; Left Atrial Appendage