Biomedical subjects

S Schatanek

Publications and source records attributed to S Schatanek.

3 recordsLinked to original sources

PubMed1994

[Coats syndrome in retinitis pigmentosa. Clinical aspects and therapeutic possibilities].

Coats disease itself is a rather rare condition, whereas Coats syndrome has been observed in about 1.2-4.9% of all retinitis pigmentosa (RP) patients. The spectrum of clinical presentations and our therapeutic experience are illustrated with reference to case reports of three patients with clinically and electrophysiologically verified RP and Coats syndrome. As in classic Coats disease, Coats-like changes with RP are defined by aneurysmatic and teleangiectatic vessels and intra- and subretinal lipid deposits leading to exudative retinal detachment. Both entities differ with regard to age of onset, gender, bilaterality and location of the retinal changes. The reports published up to now show that there is no consensus concerning the success of the different treatments of Coats syndrome associated with RP. Laser therapy, cryocoagulation, diathermy and buckling procedures have been suggested for treatment of this complex. As in the therapy of Coats disease, our results confirm that the outcome of laser therapy depends on early detection of Coats-type vascular abnormalities and early initiation of the treatment. Therefore, thorough fundus examination should be regularly performed in all RP patients.

Adolescent↗

PubMed1993

Panretinal photocoagulation in diabetic retinopathy: argon versus dye laser coagulation.

The range of wavelengths used in ophthalmic photocoagulation treatment has been greatly enlarged by the development of the dye laser. To investigate the efficacy and possible side effects of orange dye laser light in the treatment of diabetic retinopathy, we performed a prospective, controlled clinical study comparing argon blue-green and orange dye laser light. In 14 patients with diabetic retinopathy of equal severity in both eyes one eye was randomly assigned to either blue-green argon (488 and 514.5 nm) or orange dye (600 nm) panretinal laser treatment. The total coagulated area was the same in both eyes. Subjective parameters (visual acuity, perimetry, color vision) as well as objective functions (electroretinography, electro-oculography) and the clinical course were studied preoperatively and then postoperatively over a period of 6 months. Dye laser coagulation proved as effective and safe as blue-green argon laser coagulation in the panretinal treatment of diabetic retinopathy. No significant differences in postoperative retinal function were detected. However, orange laser coagulation proved significantly more painful than blue-green argon laser treatment (P = 0.002).

Adult↗

PubMed1993

[Bilateral choroid osteoma].

BACKGROUND: Choroidal Osteoma is a rare, typically monolateral benign ossifying tumor of the choroid found in healthy females aged 10 to 30 years. In contrast, multiple idiopathic sclerochoroidal calcifications occur in elderly otherwise healthy subjects. Local or generalized distortions of calcium phosphate metabolism may cause secondary choroidal calcifications. PATIENT: We report on a 56-year-old woman, who underwent removal of a histologically verified osteoma 2 years ago. Ophthalmoscopically, there were multiple prominent choroidal tumors in the inferior midperiphery of both eyes. Ultrasonography showed high reflectivity and marked shadowing posterior to the lesion. CT-scan demonstrated the presence of calcifications. The patient neither belonged to the age group, in which choroidal osteomas are typically found, nor were the lesions located in the typical manner as reported in literature. The location in the inferior choroid has not yet been described for idiopathic sclerochoroidal calcifications. The presence of secondary choroidal calcifications was very unlikely, as there was no history of ocular inflammation or systemic disease such as hyperparathyreoidism or chronic renal failure. CONCLUSION: Thus, despite the lack of histologic examination, one may assume the rare incidence of bilateral choroidal osteomas in atypical inferior localisation in our patient.

Choroid↗