Tricuspid valvular papillary muscle rupture with intractable hypoxia: a rare complication post MI.
Acute inferior ST-elevation myocardial infarction (STEMI) alone contributes to approximately 10% of in-hospital mortality due to ischemic heart disease. Right ventricular involvement occurs in 50% of patients who present with inferior STEMIs, increasing in-hospital mortality to 31%. In the setting of concomitant severe tricuspid regurgitation, acute rupture of the papillary muscles within the right ventricle should be considered in the differential diagnosis. The authors present the case of a patient with intractable hypoxia in the setting of an acute inferior STEMI complicated by rupture of the posterior tricuspid valve papillary muscle.
Institute of Cardiovascular Sciences, St Boniface General Hospital, Winnipeg, MN, Canada.
Jonathan R
JR
Walker
Negareh
N
Mousavi
Erich
E
Horlick
Colette
C
Seifer
Davinder S
DS
Jassal
D004452:Echocardiography; D005260:Female; D006335:Heart Injuries / Q000000981:diagnostic imaging* / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications* / Q000000981:diagnostic imaging*; D010210:Papillary Muscles / Q000000981:diagnostic imaging* / Q000293:injuries*; D035583:Rare Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D012421:Rupture / Q000000981:diagnostic imaging / Q000209:etiology; D014261:Tricuspid Valve / Q000000981:diagnostic imaging* / Q000293:injuries*