Biomedical subjects

M Michalicková

Publications and source records attributed to M Michalicková.

3 recordsLinked to original sources

PubMed1997

[Long-term results of pars plana vitrectomy and silicone oil in large retinal tears in children].

Pars plana vitrectomy (PPV) with implantation of silicone oil (ISO) was performed giant tears (GT) in 24 eyes of 22 children aged 6-15 years. In 15 eyes of 13 children idiopathic GT were involved (71%), in 9 eyes (29%) the GT was preceded by an injury-contusion in 5 eyes and a perforating injury in 4 eyes. The patients were followed up for 24-132 months after operation, on average for 55 months. The final anatomical success with an attached macula and functional success with a visual acuity of 0.02 or better were achieved in 18 eyes (75%). The results did not depend on the size of the GT and were better in post-traumatic than in idiopathic GT. The success of the operation declined from 82% after two years and 79% after 3 years to 45% after 5 and more years. The silicone oil was removed in 13 years (46%). Of those in 4 eyes (31%) the detachment relapsed and in two eyes (15%) the relapse was the cause of the final failure. PPV with ISO was a very effective operation in GT. Proliferative vitreoretinopathy was the main cause of surgical failures and a frequent obstacle for removal of silicone oil from the eye. Dispensarization, prophylactic cryopexy and early diagnosis of GT are the main prerequisites of a better prognosis and results in GT in children.

Adolescent↗

PubMed1993

[Malignant intraocular lymphoma].

A thirty-year-old patient irradiated five years previously on account of a cerebral tumour was admitted for pars plana vitrectomy with the diagnosis of bilateral chronic uveitis and secondary glaucoma. The intraocular inflammation was characterized by corneal precipitates, pseudohypopyon, circulating large cell conglomerates in the anterior chamber and a dense whitish infiltration of the vitreous cavity. Because an intraocular malignant lymphoma was suspected, repeatedly a diagnostic pars plana vitrectomy was performed on the right eye and once on the left eye and bilateral actinotherapy was administered. Only the last cytological examination revealed the presence of lymphoma cells. The course of the disease on the two eyes differed. In the right eye despite repeated actinotherapy and repeated pars plana vitrectomy the disease proceeded by infiltration of the retina and the optic disc. In the left eye after par plana vitrectomy the finding on the ocular fundus was permanently without focal changes. An intraocular malignant lymphoma is usually masked by the picture of chronic uveitis. Careful analysis of the case-history, clinical picture and above all the awareness of this life threatening disease, are decisive for establishment of the correct diagnosis.

Adult↗

PubMedDate not supplied

Pars plana vitrectomy in the pediatric population: indications and long-term results.

PURPOSE: To establish the indications and the long-term results of pars plana vitrectomy (PPV) in the pediatric population. METHODS: PPV was performed in 60 eyes of 57 children, 45 boys and 12 girls, aged from 6 to 15 years. Twenty-nine eyes (48%) suffered from complicated rhegmatogenous or traction retinal detachment (RD) with advanced proliferative vitreoretinopathy (PVR), 19 eyes (32%) had RD due to an idiopathic or traumatic giant tear (GT), 7 eyes (11%) had an intraocular foreign body (IOFB), and 5 eyes (9%) had hemorrhage or exudation into the vitreous. In 43 eyes (65%) silicone oil implantation (SOI) was indicated, in 39 eyes (91%) a primary SOI, and in 4 eyes (9%) a secondary SOI. The patients were followed up for 6-72 months, mean 42 months. RESULTS: At the end of follow-up, anatomical success with a flat macula was achieved in 77% of the eyes, and functional success with visual acuity of 0.02 and better in 72%. The results were best in IOFB and traction RD after penetrating injury (success in 100% and 91%); the worst results were in RD after regressed retinopathy of prematurity and RD due to idiopathic GT (success in 50% and 54%). After SOI silicone oil was removed in 27 out of 43 eyes (63%), and the retina remained attached in 23 of these eyes (85%). CONCLUSIONS: Indications and the long-term results of PPV in children were comparable with those in the adult. By far the most frequent indications were injuries and their complications. In complicated RD, a radical approach with primary SOI and later silicone oil removal proved useful. In children, with their long life expectancy, timely removal of silicone oil is vital for maintaining the function of the eye.

Adolescent↗