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K Gergelyová

Publications and source records attributed to K Gergelyová.

16 recordsLinked to original sources
PubMed2003

[Transcleral laser photocoagulation and cryocoagulation of the retina in children with retinopathy of prematurity].

The objective of the work was to compare the effectiveness of transscleral laser photocoagulation and cryocoagulation of the retina in the treatment of retinopathy of premature infants (ROP). During the period from March 1999 to April 2001 at the Ophthalmological Clinic for children and adults in the Motol Faculty Hospital 80 eyes of 40 children with the borderline stage of ROP were treated. In 40 eyes cryocoagulation was performed, in 40 transcleral photocoagulation of the retina. The mean gestation age of the infants on delivery was 28.7 weeks, the postconception age at the time of operation 36.7 weeks. The follow up period varied from 1 to 24 months. All therapeutic provisions were made with premedication and under local anaesthesia. For a stabilized finding without progression we took an adherent retina without subsequent traction changes. Cryocoagulation was successful in 87.5%, laser photocoagulation in 85%. Both methods proved equally effective. In photocoagulation the authors recorded a lower incidence of local complications. General undesirable effects were not recorded in any of the treated children. Transscleral photocoagulation extends contemporary therapeutic possibilities in patients with ROP.

Cryosurgery↗
PubMed2002

[Screening for threshold stages in retinopathy of prematurity].

The authors evaluated retrospectively the examination protocols of 208 children (400 eyes) treated by cryocoagulation on account of active retinopathy of premature infants (ROP). The objective was to assess the optimal timing for the onset of examination to record in time the threshold stages of ROP in children with different grades of maturity. The baseline point was the finding that before the 5th postnatal (pnt) and 31st postconception week (pcw) the threshold stage was not diagnosed in any child of the group. The highest incidence of threshold stages in all children was between the 36th and 37th postconception week. The first examination made between the 5th-6th postnatal or at first during the 31st postconception week is sufficient to cover initial threshold stages of ROP in children with different birth weights. Screening based on combination of the postnatal and postconception age is more accurate than evaluation by one criterion. Premature examinations are misleading and not valid for screening.

Birth Weight↗
PubMed2001

[Pars plana vitrectomy in retinopathy of prematurity].

UNLABELLED: Retinopathy of prematurity (ROP) is a proliferative retinopathy which affects pre-term infants. ROP occurs primarily at the advancing edge of vascularization and consists of arrested spread of vessels, proliferation of endothelial cells, formation of arteriovenous shunt and in some cases, neovascularization. To date only the surgical approach for advanced ROP is acceptable, other ways are still in experimental stages of development. PURPOSE: Because of the early development of fibrovascular proliferative tissue, vitreous surgery before the fovea is pulled anteriorly, may lead to successful results. METHODS: Data from literature and own experiences lead the authors to use retinal re-attachment procedures to restore normal anatomic relation between the retina and choroid in affected eyes. RESULTS: 6 cases demonstrated that retinal detachments caused by fibrous proliferations that pull the retina upward to a fibrotic membrane on the posterior lens capsule can be treated successfully. CONCLUSION: Stages ROP when the retinal detachment threatening fovea are recommended for successful surgical repair of retinal detachment in ROP only.

Adolescent↗
PubMed1996

[Pars plana vitrectomy in retinal detachment with a macular hole].

The long-term results of pars plana vitrectomy (PPV) for retinal detachment due to a macular hole were evaluated in 40 eyes of 40 patients. The patients were followed up for 6 to 72 months. In 9 eyes, subtotal PPV with expansive gases was used: in 5 of them, in addition, the macular hole was treated with laser endocoagulation. The operation was successful in 4 out of 5 eyes treated with laser barrage. In the remaining 5 eyes, the operation failed and reattachment was obtained after secondary silicone oil implantation (SOI). In 31 eyes, PPV was combined with a primary SOI. Twenty of them suffered from serious myopic degenerative changes of the posterior eye pole, and in 11 posterior stafyloma. Reattachment of the retina was achieved in 28 eyes (90.3%), visual acuity 1/24 (0.04) or better in 13 eyes (41.9%). Silicone oil was removed in 13 eyes (41.9%), in all these without complications. PPV with expansive gases and laser coagulation proved to be effective in macular holes with the well-preserved pigment epithelium. Silicone oil proved competent in macular holes associated with serious chorioretinal degeneration and posterior stafyloma.

Adult↗
PubMed1995

[Pars plana vitrectomy in Terson's syndrome].

Pars plana vitrectomy (PPV) was the operation of choice in haemorrhage (Terson's syndrome) in 7 eyes of 5 patients aged 32 to 47 years. The interval between intracranial haemorrhage and PPV varied from 2 to 10 months. Patients after PPV were followed up for 12 to 84 months. The postoperative course was complicated by successfully operated retinal detachment in two eyes where PPV was not safeguarded by cerclage. The final visual acuity 0.7-1.0 was achieved in 6 of 7 eyes (87%); visual acuity of 0.1 in one eye was due to a lamellar defect of the macula. PPV is the treatment of choice in Terson's syndrome with bilateral haemorrhage into the vitreous body and in massive unilateral extravasation with inadequate spontaneous resorption. Cerclage in PPV in TS is according to the authors essential prevention of iatrogenic retinal detachment.

Adult↗
PubMed1994

[Personal experience with expanding gases in pars plana vitrectomy].

At the Second Ophthalmological Clinic in Prague the authors operated between January 1991 and November 1993 50 patients, 33 men and 17 women. The mean age of the patients was 43.6 years, the minimum observation period 5 months. In all patients pars plana vitrectomy was performed (PPV) and at the end of the operation or subsequently into the vitreous space the expansive gas SF6 (hexafluorosulphide) or C3F8 (perfluoropropane) was insufflated. In all instances the authors indicated the expansive gas for treatment or prevention of retinal detachment and with regard to this they divided the patients into two groups: 1. From the total number of 50 patients the authors operated in the first group 31 patients with complicated retinal detachment (RD). In 17 patient RD with large postequatorial tears and traces of blood in the vitreous space were involved. In 7 patients the cause of RD was a severe eye injury. In five patients the authors found a macular opening, in one patient a large postequatorial tear in the temporal half and in one patient a circumscribed tractional RD associated with diabetic proliferative retinopathy was involved. 2. In the second group of 19 patients the gas was used as prevention of RD. In 5 patients after transvitreal extraction of a foreign intraocular body with suspected or obvious retinal defect. In two patients after extraction of a posterior lenticular luxation following severe contusion of the eye. In the remaining 12 patients the expansive gas was used after removal of silicone oil (SO) and the gas was used at the same time to prevent hypotonia of the eye. Anatomical results of surgery. 1. In the group of 31 patients with complicated RD after PPV and gas insufflation the retina adhered anatomically in 23 patients (74%). In the group with PVR C1-C3 in 13 patients after gas insufflation the retina became attached in 10 patients (76.9%). In one of these patients after three months accentuated cerclage was performed because of a new fissure. 2. In the group of 19 patients where gas was used for preventive reasons the retina became detached only after removal of SO in 5 of 12 patients (42%). Functional results of operation. To assess final vision the authors evaluated in the first group a total of 39 patients only after gas insufflation and in the second group another 11 patients after reoperation with implantation of SO.(ABSTRACT TRUNCATED AT 400 WORDS)

Adult↗
PubMed1993

[Bilateral retinal detachment].

In 1977-1990 a total of 2,554 patients with rhegmatogenic retinal detachment were operated by the cryosurgical method, using silicone episcleral implants. The total number of patients comprosed 36 (1.4%) where the authors detected during the preoperative examination retinal detachment, usually in an initial stage, on the other eye. In 30 patients the authors operated bilateral detachment of the retina simultaneously and in the remaining six during the same hospitalization. The poorer eye was characterized by 1. more extensive retinal detachment, 2. a higher grade of proliferative vitreoretiopathy (PVR). As to the preoperative findings, the authors consider the following points important: 1. Almost 70% of the patients did not report subjective complaints of the better eye. 2. With regard o the pathogenesis the patients were divided into three groups: lattice degenerations in 61.1%, idiopathic oral dialysis 11.1%, other factors 27.8% of the patients. 3. Symmetry of the retinal defect up to 90 in two-thirds of the patients. 4. Type of operation. On the poorer eye the authors performed segmental plombage in 12 eyes (33.3%), cerclage in 5 eyes (139%) and reinforced cerclage in 19 eyes (52.8%). For the better eye the authors indicated segmental plombage in 12 eyes (77.8%), cerclage in 4 eyes (11.1%) and reinforced cerclage in 4 eyes (11.1%). Subretinal fluid was punctured on the poorer eye in 19 eyes (52.7%) and on the better eye in 7 eyes (19.4%). After an average observation period of 40 months the retina became anatomically attached in 86.0% on the poorer eye, and in 100% on the better eye. Bilateral retinal detachment in our group can be considered a model situation of retinal detachment which developed roughly at the same time and under equal endogenous conditions of the given organism. It may be thus assumed that a different extent of detachment and grade or proliferative vitreoretinopathy before operation was determined above all by the period of retinal detachment.

Adolescent↗
PubMed1993

[Pars plana vitrectomy in epimacular membranes].

Epimacular membranes /EMM/ reduce markedly visual acuity and the only treatment is pars plana vitrectomy /PPV/ and removal of the EMM. The authors analyzed the results of PPV in 30 eyes with EMM of different aetiology. The group comprised 4 idiopathic EMM and 26 secondary EMM after operations of a detached retina, injury, intraocular inflammation, occlusion of the retinal vein and retinopathies of the premature. The operation markedly improved the visual acuity in 20 eyes /67%/ and the best results were obtained in idiopathic EMM. The prognosis did not depend on the preoperative visual acuity and duration of the disease and was determined by the state of the macula beneath EMM which in dense secondary EMM is difficult to assess before operation. The poorest functional results were obtained in postinflammatory and post-traumatic EMM.

Adolescent↗
PubMed1991

[Pars plana vitrectomy in the treatment of exogenous suppurative endophthalmitis].

The authors evaluate the results of pars plana vitrectomy (PPV) in 12 patients with exogenous suppurative endophthalmitis (EHE). EHE developed after operation of cataract in eight patients and after perforating injury of the sclera in four patients. The shape, size and appearance of the eye was preserved in 11 eyes, the function of the eye with a visual acuity of 0.5-1.0 was saved in six eyes (50%), in one eye with bacteriologically confirmed mycotic enophthalmitis and in five eyes where bacterial infection was assumed. Inoperable detachment of the retina characterized the ophthalmoscopic finding in all eyes with loss of function. Close cooperation of ophthalmological departments with vitreoretinal centres and early performance of urgent surgery are the basic prerequisites of better functional results of PPV in EHE.

Adult↗
PubMed1991

[Pars palana vitrectomy in chronic uveitis].

The authors evaluated the results of pars plana vitrectomy (PPV) on account of chronic uveitis in 10 eyes of nine patients. In one patient where both eyes were operated on the cause of uveitis was spondylitis ankylopoietica, in the remainder the cause of uveitis was not revealed. All eyes tolerated PPV well. PPV markedly improved the visual acuity in 7 eyes (70%), a visual acuity of 1.0-0.7 was recorded in three eyes, an acuity of 0.4-0.1 also in three eyes and an acuity of 0.04 in one eye. The cause of failure in all instances was detachment of the retina. PPV is an obvious asset in the treatment of chronic uveitis associated with thick exudation into the vitreous body.

Adolescent↗