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Biomedical subjects

W Tasman

Publications and source records attributed to W Tasman.

At least 55 records · Page 3Linked to original sources
PubMed1988

Surgical approaches to retinal detachment in retinopathy of prematurity.

Outlined in this chapter are surgical approaches to retinal detachment in ROP. Technical details of the vitrectomy approach to stage V ROP are covered extensively in the chapters by Machemer and Charles. Late-onset retinal detachment is a rare complication. Two types of detachment, those associated with traction and those associated with retinal breaks or tears (rhegmatogenous), generally respond well to standard buckling procedures. The incidences of these complications provide reason for continued long-term follow-up of eyes with ROP.

Adolescent↗
PubMed1988

Complications of vitrectomy for non-clearing vitreous hemorrhage in diabetic patients.

One hundred consecutive patients with proliferative diabetic retinopathy underwent vitrectomy for nonclearing vitreous hemorrhage. Eighty-two had significantly improved vision; nine had no improvement in vision; and nine had complications which resulted in permanent loss of vision. Only three eyes lost vision because of neovascular glaucoma. Our results indicate that with improved surgical techniques, the incidence of vitrectomy complications is decreasing.

Diabetic Retinopathy↗
PubMed1988

Natural history and management of advanced Coats' disease.

Thirteen children evaluated in the Oncology Service of Wills Eye Hospital from 1976 through 1986 were found to have advanced unilateral Coats' disease, producing a total bullous exudative retinal detachment. All 13 eyes were blind. Six children were given no treatment for their retinopathy, and four of the six eventually developed painful neovascular glaucoma, necessitating enucleation of the affected eye. The other seven children underwent intraocular infusion, drainage of subretinal fluid, and cryotherapy on one or more occasions. None of these seven eyes has developed painful neovascular glaucoma, and the affected eye remains cosmetically acceptable in all seven children.

Child↗
PubMed1987

Cryotherapy for active retinopathy of prematurity.

Twenty-eight patients with bilateral symmetrical stage-III retinopathy of prematurity and plus disease had one eye treated using cryotherapy, while the other acted as a control. Eleven patients showed improvement in both the treated and untreated eye, while 11 others were noted to improve in the treated eye while demonstrating deterioration in the untreated eye. The P value obtained by applying binomial distribution tests suggested that, in the sampled population, cryotherapy was preferable to no treatment.

Clinical Trials as Topic↗
PubMed1987

Open sky vitrectomy for total retinal detachment in retinopathy of prematurity.

Open sky vitrectomy was performed on 23 eyes in 18 children between 4 and 35 months of age with stage V retinopathy of prematurity (ROP). Postoperatively, the retina was reattached in the posterior pole in eight eyes (34.7%). Follow-up ranged between 7 and 55 months (average, 16 months). Prognostic factors based on preoperative findings and surgical observations are analyzed.

Child, Preschool↗
PubMed1987

Rhegmatogenous retinal detachment after YAG laser posterior capsulotomy.

Twenty-five eyes in 24 patients with rhegmatogenous retinal detachment (RD) after YAG laser posterior capsulotomy were treated during 1984 and 1985. The average time from extracapsular cataract surgery to YAG capsulotomy was 15 months. The average interval from capsulotomy to RD was 6 months (median time, 3 1/2 months). In 8 of the 25 eyes, a risk factor for RD (i.e., high myopia, lattice degeneration, or a history of RD in the fellow eye) was present. All but one of the detachments was successfully repaired.

Adult↗
PubMed1986

A pilot study on cryotherapy and active retinopathy of prematurity.

Seventeen patients with symmetrical stage 3 retinopathy of prematurity (ROP) and plus disease were assign to cryotherapy in one eye. Treatment was confined to the avascular zone of retina. Twelve treated eyes (71%) improved and 10 untreated eyes (59%) became worse. However, in only five patients did the treated eye improve and the untreated eye become worse, a number too small to be statistically significant.

Birth Weight↗
PubMed1986

Cryotherapy for active retinopathy of prematurity.

Twenty-eight patients with bilateral symmetrical Stage 3 retinopathy of prematurity (ROP) and plus disease had one eye assigned to cryotherapy and the other to control. The majority of patients weighed under 1000 grams at birth and females outnumbered males by nearly a two-to-one ratio.+ Cryotherapy was generally performed at a gestational age of less than 40 weeks and a mean chronologic age of 10 weeks. Eleven patients showed improvement in both the treated and untreated eyes possibly due to variables among prematures not identified in the study. Eleven other patients experienced improvement in the treated eye and progression in the untreated eye. Using the binomial distribution on the latter group the P value was 0.0005 with a one-tailed hypothesis test and 0.001 with a two-tailed test, suggesting that in the sampled population cryotherapy appears to be preferred over no treatment.

Cryosurgery↗
PubMed1985

Zone I retinopathy of prematurity.

Two (5.4%) of 37 patients with retinopathy of prematurity were noted to have zone I vascularization of the retina in at least one eye. Three eyes in the two patients showed plus disease with nonflorid stage 3 ridge formation and extraretinal fibrovascular proliferation. Two of the three eyes were not treated and rapidly progressed to total retinal detachment and blindness. The third eye was treated with cryotherapy and this was followed by resolution of the plus disease. Although the treated eye did not develop dragging of the retinal vessels or retinal detachment, it is unfortunately blind.

Blindness↗
PubMed1985

Management of retinopathy of prematurity.

Seventeen patients with symmetrical stage 3 retinopathy of prematurity (ROP) and plus disease as described in the International Classification of ROP had one eye randomized to cryotherapy and the other to control. Seventy-seven percent of the patients were under 1000 grams at birth and females outnumbered males by a 2 to 1 ratio. The average chronologic age at which cryotherapy was performed was three months. Twelve of seventeen treated eyes (71%) showed resolution of the ROP and 10 of 17 untreated eyes (59%) became significantly worse. However, only five patients had improvement in the treated eye and progression in the untreated eye, a number too small to provide statistical significance. Six eyes with Stage IV ROP were operated by encircling scleral buckling techniques because of total retinal detachment secondary to peripheral traction and cicatrization arising from the ridge. In five patients the unoperated eye had already developed a retrolental membrane, and in one patient bilateral detachments were present. Five of the six operated retinas were reattached.

Cryosurgery↗
PubMed1984

Rhegmatogenous retinal detachments caused by paravascular vitreoretinal traction.

We describe three cases of shallow posterior rhegmatogenous retinal detachment caused by tiny retinal tears. The clinical appearance of the detachments was very similar to that of idiopathic central serous chorioretinopathy or traction retinal detachment. However, the correct diagnosis was made by finding a tiny paravascular break. Vitrectomy without a thermal adhesion was successful in repairing the detachments.

Adult↗
PubMed1984

The natural history of active retinopathy of prematurity.

Two hundred twenty-one premature infants were examined in the premature nursery. Thirty-seven of the 221 (16.2%) had retinopathy of prematurity (ROP). Eight patients (21.5%) went blind and three other infants lost sight in one eye for a total of 19 sightless eyes (25.7%). The remaining 55 eyes (74.3%) retained vision. Birth weight was the most critical prognostic factor. Of eight babies who became blind all were under 1000 grams at birth, while babies who showed little change from active ROP were generally over 1300 grams. Nine of 14 eyes with only peripheral shunts (64%) resolved without dragging of the retina in the posterior pole. Sixteen eyes developed peripheral retinal detachment, and six of the sixteen (37.4%) had associated dilation and tortuosity of vessels in the posterior pole. Only one of these eyes resolved with minimal sequelae, suggesting that peripheral retinal detachment with dilated tortuous vessels was the most significant indicator of serious consequences.

Blindness↗