TY - JOUR
T1 - Fossa ovalis tear causing right to left shunting in a Cavalier King Charles Spaniel
AU - Lake-Bakaar, Geri A.
AU - Mok, Mai Yee
AU - Kittleson, Mark D
PY - 2012/12
Y1 - 2012/12
N2 - Left atrial tear is an infrequent sequela of severe mitral regurgitation due to myxomatous mitral valve degeneration. Interatrial septal tear due to mitral regurgitation causing a left-to-right shunt is uncommon. Right to left shunting secondary to acute interatrial septal tear is very rarely reported in the human literature, and has not been reported in the veterinary literature in a dog. This case describes the clinical, radiographic, echocardiographic, gross pathologic, and histopathologic features of a dog presented in acute respiratory distress secondary to acute onset right to left shunting through the interatrial septum. This was later documented to be due to a tear in the septum secondary to tricuspid regurgitation and pulmonary hypertension. The presence of an acquired right to left shunting atrial septal defect is of clinical and prognostic significance, and should be considered in cases of acute respiratory distress.
AB - Left atrial tear is an infrequent sequela of severe mitral regurgitation due to myxomatous mitral valve degeneration. Interatrial septal tear due to mitral regurgitation causing a left-to-right shunt is uncommon. Right to left shunting secondary to acute interatrial septal tear is very rarely reported in the human literature, and has not been reported in the veterinary literature in a dog. This case describes the clinical, radiographic, echocardiographic, gross pathologic, and histopathologic features of a dog presented in acute respiratory distress secondary to acute onset right to left shunting through the interatrial septum. This was later documented to be due to a tear in the septum secondary to tricuspid regurgitation and pulmonary hypertension. The presence of an acquired right to left shunting atrial septal defect is of clinical and prognostic significance, and should be considered in cases of acute respiratory distress.
KW - Atrial septal defect
KW - Fossa ovalis
KW - Pulmonary hypertension
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U2 - 10.1016/j.jvc.2012.07.004
DO - 10.1016/j.jvc.2012.07.004
M3 - Article
C2 - 23110980
AN - SCOPUS:84870562710
VL - 14
SP - 541
EP - 545
JO - Journal of Veterinary Cardiology
JF - Journal of Veterinary Cardiology
SN - 1760-2734
IS - 4
ER -