Rupture of the pulmonary artery or of one of its branches during a Swan-Ganz catheterisation is a rare complication which remains lethal in about 50% of cases. The risk factors and mechanisms of this complication have been previously described. There are two means of treatment: intensive care and specific medical or surgical treatment. In this case, the rupture of the pulmonary artery occurred during Swan-Ganz catheterisation and was treated by coil embolisation. This simple and rapid technique seems to be very promising.