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Biomedical subjects

W A Alturki

Publications and source records attributed to W A Alturki.

8 recordsLinked to original sources
PubMed1993

Management of giant retinal tears with perfluoroperhydrophenanthrene (Vitreon).

Giant retinal tears in 10 eyes were repaired with the perfluorocarbon liquid Vitreon (perfluoroperhydrophenanthrene). The mean patient follow-up period was 9.2 months; retinas remained attached in all eyes at the last examination. Visual acuity improved in 9 eyes and could not be measured in one eye. One patient (mentally retarded) required a second operation for reattachment of the retina, which redetached from trauma after initial successful repair. Vitreon, unlike other perfluorocarbon liquids, may also be used as a short-term intraocular tamponade with the patient remaining in a supine position postoperatively. Vitreon was used as a short-term postoperative intraocular tamponade in 6 eyes. In 4 eyes, Vitreon was used as an intraoperative tool to reposition the retina and, when necessary, to unfold an inverted flap.

Adolescent↗
PubMed1992

An endolaser probe with aspiration capability.

A new endolaser probe with aspiration capability can be used as a flute needle for drainage of subretinal fluid and for endolaser treatment of a retinotomy site after vitrectomy. This instrument allows removal of vitreous and subretinal fluid during air-fluid exchange and immediate endolaser photocoagulation without exchange of instruments.

Drainage↗
PubMed1992

Internal choroidectomy of posterior uveal melanomas under a retinal flap.

Local excision of uveal melanoma is an intriguing therapeutic modality in selected cases. An internal choroidectomy under a retinal flap has been developed as an alternative to retinochoroidectomy in managing posterior pole melanomas. This technique offers more adequate preservation of retinal architecture, thus potentially enhancing central visual function in patients with tumors located close to the fovea.

Adult↗
PubMed1992

Use of perfluoroperhydrophenanthrene in the management of suprachoroidal hemorrhages.

BACKGROUND: Suprachoroidal hemorrhage may cause the expulsion of intraocular contents. Generally, cases of nonexpulsive suprachoroidal hemorrhage have a better outcome than their expulsive counterparts. Those cases with massive nonexpulsive suprachoroidal hemorrhage do better with treatment than without. Treatment modalities have included suprachoroidal hemorrhage drainage with or without intraocular volume reformation, and vitrectomy. METHODS: The authors used the liquid perfluorocarbon perfluoroperhydrophenanthrene in the treatment of three patients with nonexpulsive suprachoroidal hemorrhage. The perfluorocarbon was injected into the vitreous cavity while the suprachoroidal blood was drained through anterior sclerotomies. RESULTS: With 5 months of follow-up, complete resolution of the suprachoroidal blood was noted in all patients. All three patients had attached retinas, and postoperative visual acuities were improved over preoperative visual acuities. CONCLUSION: Perfluoroperhydrophenanthrene and other perfluorocarbon liquids may be beneficial in the treatment of certain cases of nonexpulsive suprachoroidal hemorrhages.

Aged↗
PubMed1992

Posterior relaxing retinotomies: analysis of anatomic and visual results.

Fifteen eyes with complicated retinal detachments--11 with proliferative vitreoretinopathy (C3 D3), 2 with posterior segment trauma, and 2 with inflammatory retinopathy--were treated with vitrectomy, membrane peeling, and large posterior retinotomy. All posterior relaxing retinotomies were circumferential, including temporal quadrants in all cases. With a minimum follow up of 6 months, 12 eyes (80%) were attached posterior to the retinotomy. Reproliferation resulted in redetachment in 3 eyes (20%). Visual acuity improved in 53%, remained unchanged in 20%, and decreased in 27%. Of the 11 eyes that achieved stable or improved visual acuity, 5 (45%) achieved 20/400 to 20/25 vision, 5 achieved counts fingers perception, and 1 patient remained stable at hand motion perception. Of all the eyes undergoing surgery, hypotony (intraocular pressure < 5 mm Hg) occurred in 6 eyes (40%); 3 of these were among the 12 eyes with attached retinas.

Adolescent↗
PubMed1992

Management of retinal detachment associated with choroidal coloboma using perfluoroperhydrophenanthrene (Vitreon).

Vitreous surgery using an internal tamponading agent and chorioretinal adhesion is commonly used to repair retinal detachment associated with choroidal coloboma. The detachment may, however, recur if fluid continues to leak through a retinal defect in the area of the coloboma, despite internal tamponade. We present a case in which a recurrent retinal detachment associated with coloboma following vitreous surgery with SF6 was successfully repaired in outpatient surgery using perfluoroperhydrophenanthrene (Vitreon) and endolaser photocoagulation.

Aged↗
PubMed1992

Orbital extension of sinus lymphoma in AIDS patient.

A case of a 27-year-old white male with acquired immunodeficiency syndrome (AIDS) who had a maxillary sinus tumor with secondary orbital involvement was reported. Marked proptosis and distortion of the globe were present. Biopsy by the Caldwell-Luc approach disclosed an immunoblastic lymphoma of B-cell origin. To the best of our knowledge, this is the first reported case of a maxillary sinus lymphoma extending into the orbit in a patient with AIDS.

Adult↗