[Non-ruptured calcified aneurysm of the Valsalva's sinus with angina pectoris and aortic insufficiency. Surgical treatment]. / Anévrysme calcifié non rompu du sinus de Valsalva avec angor et insuffisance aortique. Cure chirurgicale.

We report a case of aneurysm of the straight frontal, and not coronary, aortic sinus, non ruptured and calcified, responsible for a refractory angina pectoris and a massive aortic failure in a 71 year old woman. The surgical treatment consisted in the exclusion of the aneurysm of the aortic sinus by a tubular prosthesis in which only two thirds of the circumference have been used, associated with the replacement of an aortic valve by a bioprosthesis, without associated coronary by-pass.

The enzymatic profile of Haemophilus ducreyi.

The enzymatic activities of two reference strains of Haemophilus ducreyi and thirty clinical isolates were investigated by conventional biochemical tests and the API-ZYM test kit system which included 97 synthetic substrates. No strains converted delta-aminolevulinic acid to porphyrins, but they all reduced nitrates to nitrites. All strains possessed aminopeptidase activity against beta-naphthylamide derivatives of L-alanine, L-arginine, L-glutamine, glycine, L-leucine, L-lysine and L-serine. No trypsinor chymotrypsin-like activities were detected. All strains had phosphatase activity with broad pH range, and phosphoamidase activity. No glycosidase was detected by the substrates tested.