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Biomedical subjects

C Althaus

Publications and source records attributed to C Althaus.

59 records · Page 4Linked to original sources

Acute posterior multifocal placoid pigment epitheliopathy with cerebral involvement.

In a patient with angiographically proven cerebral vasculitis five months after acute posterior multifocal placoid pigment epitheliopathy (APMPPE) neurological symptoms promptly responded to steroid treatment. Cerebrospinal fluid (CSF) showed a lymphocytic pleocytosis. Magnetic resonance imaging (MRI) revealed multifocal white matter lesions in the hemispheres and the brain stem suggesting a diffuse subcortical vasculitis.

Cerebral Arterial Diseases↗

[Chronic recurrent polychondritis. The spectrum of eye involvement].

Chronic relapsing polychondritis is a rare connective tissue disease of presumed autoimmunologic pathogenesis. It may involve multiple organ systems. The most characteristic signs are: relapsing inflammation of the cartilage of the outer ear, non-erosive polyarthritis, chondritis of the nasal cartilage, inflammation of different ocular tissues, inflammation of tracheal and bronchial cartilages and lesions of the inner ear. The wide range of ocular tissue involvement is discussed on the basis of two new cases with emphasis on scleritis, episcleritis, keratitis and chorioretinal involvement. Ocular disease complications that have not been published before are the massive development of subretinal stands following multiple intra- and subretinal infiltrates in the posterior pole connecting areas of chorioretinal scars. The importance of high-dose, long-term steroid therapy is stressed. In addition to steroids, immunosuppressive agents such as azathioprine and cyclophosphamide are sometimes mandatory to cope with severe multi-organ disease. Another option in very severe relapses may be plasma separation to improve the condition rapidly until drug therapy can be effective.

Adult↗

Intraoperative intraocular endoscopy in transscleral suture fixation of posterior chamber lenses: consequences for suture technique, implantation procedure, and choice of PCL design.

BACKGROUND: Transscleral suture fixation of posterior chamber lenses (PCLs) in the absence of capsular support causes minimal long-term alteration of the blood-aqueous barrier, if two requirements are fulfilled: 1) the transscleral suture has to penetrate exactly through the ciliary sulcus, and 2) the PCL haptics have to be directed into the sulcus and secured there. METHODS: The surgical results of our standard techniques were controlled intraoperatively by means of intraocular endoscopy in every patient since May 1991. Different alterations were necessary to improve the incidence of sulcus penetration and implantation. RESULTS: With our conventional suture techniques, the needle penetrated the ciliary processes in the majority of eyes. Best results were achieved by passing the needle from the outside into the eye before opening the globe. When the eye was already hypotonic, the ciliary processes tended to prolapse in front of the needle tip, resulting in pars plicata fixation. With perforating keratoplasty, passing the needle from the inside out by feeding one's way into the sulcus with the needle tip gave good results. Even correct needle penetration through the sulcus did not guarantee correct positioning of the PCL haptics in the sulcus. CONCLUSIONS: Selecting a suitable PCL design and a new implantation technique which reduces the angle of PCL implantation, the rate of correctly positioned PCLs in transscleral suture fixation is increased considerably.

Cataract Extraction↗