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Biomedical subjects

K Pecold

Publications and source records attributed to K Pecold.

30 records · Page 2Linked to original sources
PubMedDate not supplied

[Proliferative vitreoretinopathy as a cause of early recurrence of retinal detachment].

Analysed were the results of surgical treatment, causes of the failure and early recurrence in 108 patients with retinal detachment in whom was performed an indentation of the sclera by means of a balloon (1st group--50) or by an episcleral implant (2d group--58). In the first group the apposition was achieved in 92 p.c., in the 2d group in 90 p.c. An early recurrence (2 weeks to 2 months) was observed in 9 eyes which were operated again achieving an apposition of the retina in 6 eyes. There were following causes of the failure: the existence of a second hole, rupture of the balloon, PVR before surgery and traction of the retina in the region of the hole. An early recurrence occurred in the consequence of intensification of the PVR together with inaccurate localization of the implant, existence of the PVR before the operation and traction of the retina in the vicinity of the hole, formation of a new hole.

Adolescent↗
PubMedDate not supplied

[Principles of qualifying retinal detachment for pneumoretinopexy].

The gases SF6 and C2F6 were used in 88 patients (88 eyes) with retinal detachment as endotamponade. Eighty eight patients constituted 3 groups in which the gas was used on the basis of following indications: 1) the eyes with retinal detachment from above and with holes between 9-12-3 or with a macular hole; 2) eyes with retinal detachment "without hole" or with a hole for evaluation for its size and localization, as an intervention preceding an extrascleral invagination; 3) eyes with retinal detachment from above in which after extrascleral indentation in spite of a good localization the retina did not reappose. On the basis of the presented material the authors emphasize the values of the pneumoretinopexy as a solitary procedure, a diagnostic procedure or completing an extrascleral indentation. The perils of this method are presented and the causes of failures discussed.

Adolescent↗
PubMedDate not supplied

[Vitreo-retinal biomicroscopy using bilaterally aspherical Volk lenses (+78 D, +90 D)].

Aspherical+ Volk lenses allow a full realization of El Bayadi conception of use of a great power a positive lens for the indirect ophthalmoscopy by means of a biomicroscope. The authors compared the techniques of ophthalmoscopy with utilization of a biomicroscope pointing to following advantages of the Volk lens: the lack of contact with the patient's eye (avoidance of eventual transmission of infection), possibility of examination of the entire area of the fundus, a detailed evaluation of the vitreous, possibility of examination even by narrow pupil, a high comfort of examination for the patient. These advantages were confirmed during the examination of 51 eyes with retinal detachment, pathological changes of the macula and the optic disc and with intraocular tumors.

Equipment Design↗
PubMedDate not supplied

[Retinal detachment in the eyes with retinopathy of prematurity].

In the period of 1983-1988 among 57 retinal detachments in children and youth in 8 cases (10 eyes) the authors found the retinopathy of prematurity as a cause of retinal detachment. The characteristic picture of changes in these eyes was discussed. Combined surgical procedures were performed in 7 cases achieving a cure in 6. Emphasized was the significance of periodical examinations of these eyes with the aim of eventual prophylaxis of retinal detachment and of therapy of amblyopia.

Adolescent↗
PubMedDate not supplied

[Marshall syndrome--case report].

A girl, 15, with Marshall syndrome, was hospitalized for retinal tear and detachment of the left eye. The results of ophthalmological examination and applied eye surgery have been described. The authors confirm the essential phenotypical overlap of Marshall and Stickler syndromes. This suggest that they are caused by variable expression of a differently mutated gene, probably the type II procollagen gene (COL2A1), known to play a part in the etiology of Stickler syndrome. This justifies the usage, by some authors, of the common name of Marshall-Stickler syndrome.

Adolescent↗
PubMedDate not supplied

[Retinal detachment in pseudophakia].

In the years 1987-1991, a total of 851 cataract extraction with artificial lens implantation were performed in the Ophthalmological Clinic of the Medical Academy in Poznań. There were 244 anterior and 607 posterior chamber IOLs. Retinal detachment was observed in this clinical material in 6 eyes (0.7%), only in the group of anterior chamber IOLs. The methods of applied retinal detachment surgery, its results and the status of the fellow eye are presented.

Adult↗
PubMedDate not supplied

[Genetically determined retinoblastoma].

The modern view for the mechanisms of retinoblastoma origination, based on the tumor suppressor genes theory, has been described in this work. The structure and function of the retinoblastoma gene and its protein product, with reference to the cell cycle, has been presented. On the ground of this data, possibilities of genetic molecular diagnostics and principles of competent genetic counselling have been described.

Eye Neoplasms↗
PubMedDate not supplied

[Etiopathogenesis and treatment of glaucoma in Sturge-Weber syndrome].

The theories that attempt to explain etiopathogenesis of glaucoma in Sturge-Weber syndrome are presented. The assumptions for treatment of this kind of glaucoma have been explained on the grounds of literature and 2 observed cases (one with bilateral location). The best results are obtained with pharmacological treatment. Surgical procedures may result in many intraoperative and postoperative complications.

Child, Preschool↗