[Femoral pseudoaneurysms].
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Amputation, Surgical↗
Biomedical subjects
D Cosulich
Publications and source records attributed to D Cosulich.
[Complications of vascular prosthesis].
The main complications deriving from the use of vascular prostheses in the surgical reconstruction of the arteries are thrombosis, infection and the appearance of pseudoaneurysms. Among 233 aorto-femoral b.p., prosthetic thrombosis occurred in 45 patients creating the need for 66 reoperations, 19 early and 47 tardive. In 387 aorto-iliac reconstructions, infection arose early in 11 cases, tardively in 6. Out of 1118 vascular reconstructions there were also 28 pseudoaneurysms (2.5%). After remarks on the aetiopathogenesis of such complications, methods that can be used to prevent them are discussed and personal results of treatment are presented.
Aneurysm↗
Isolation and identification of piperacillin amide as an impurity in piperacillin.
Piperacillin amide (IV) was successfully identified as the predominant impurity in commercial lots of piperacillin monohydrate (III). The impurity was isolated via a preparative liquid chromatographic scheme utilizing Florisil as the adsorbent and a mobile phase of water-acetonitrile (4:96, v/v). The isolated component had nearly the same reverse-phase HPLC properties as piperacillin and was chemically and thermally unstable. This labile impurity was spectroscopically identified by field desorption (FD), fast atom bombardment (FAB) with collision activation decomposition (CAD), and desorption chemical ionization (DCI) mass spectrometries , and NMR and IR spectrometries . Identity was confirmed on comparison of the chromatographic and spectrometric data of the impurity with an independently synthesized sample of piperacillin amide.
Chemical Phenomena↗