PubMed Health⌕ Search

Biomedical subjects

J F Vander

Publications and source records attributed to J F Vander.

At least 19 recordsLinked to original sources
PubMed2001

Patient-initiated second medical opinions: their necessity and economic cost.

PURPOSE: To assess the value of patient-initiated second medical opinions (SMO). METHODS: The authors prospectively collected demographic data from 100 consecutive patients. The authors recorded major changes in the patients' care, such as inappropriate surgery recommended, inadequate treatment performed, and appropriate treatment not recommended. The authors also recorded costs incurred or saved by the patients and the third-party payers. RESULTS: In nearly 15 of the cases, the authors had major disagreements with the initial diagnosis or management. Surgery had been recommended in 28 cases. They advised against it in nine. In 72 cases, no surgery had been recommended. They advised and performed it in five. The management of five other patients was not in accordance with that recommended by large clinical trials or was inadequately done. Including the consultation fees, surgery performed or advised against, retinal angiography, and ultrasonography, the 100 SMO cost third-party payers $12,426. If the authors subtract the cost of noncontroversial surgery they recommended and if the patients had paid the consultation fee and had brought along their fluorescein angiograms, third-party payers would have saved $4,079. CONCLUSION: The savings SMO generated by eliminating unnecessary surgery resulted in improved patient care at minimal cost to third-party payers.

Adolescent↗
PubMed2000

Macular translocation.

Macular translocation is a term used to describe any surgical procedure that involves the deliberate detachment of the retina with subsequent repositioning of the macula to a new location relative to the underlying retinal pigment epithelium. By moving the fovea away from abnormal pigment epithelium and/or choroid and repositioning it over more normal tissue, macular function can be stabilized or improved. Various techniques have been developed to accomplish this movement. Although this approach holds great promise for selected conditions (in particular, subfoveal choroidal neovascularization), the optimal technique to be used and the long-term prognosis are uncertain.

Animals↗
PubMed1999

Effective macular translocation without scleral imbrication.

PURPOSE: To describe a case of effective macular translocation accomplished without scleral imbrication or extensive retinotomy. METHODS: A case report of a 59-year-old woman with subfoveal choroidal neovascularization in her left eye who underwent vitrectomy with macular detachment and fluid-air exchange. RESULTS: The macula was translocated approximately 500 microm inferiorly, allowing for photocoagulation of extrafoveal neovascularization. CONCLUSION: Limited macular translocation may be attained without scleral imbrication or significant retinotomy.

Choroidal Neovascularization↗
PubMed1998

Conjunctival necrosis following the administration of subconjunctival corticosteroid.

This report describes an unusual reaction to injected subconjunctival corticosteroid. The authors examined a patient with large areas of conjunctival necrosis at the site of a previous subconjunctival corticosteroid injection. A Gram's strain and culture of the affected conjunctival area and the bottled corticosteroid suspension were negative. Necrosis of the conjunctiva is a heretofore unreported adverse reaction to a subconjunctival corticosteroid injection. These lesions probably represent a localized toxic reaction rather than a sequela of infection.

Aged↗
PubMed1997

Peripapillary staphyloma.

PURPOSE: To report a rare case of peripapillary staphyloma. METHOD: Case report. A 5-month-old infant was examined for esotropia associated with a retinal and optic nerve abnormality of the left eye. RESULTS: Detailed clinical examination along with diagnostic ultrasonography and electroretinography established a diagnosis of a peripapillary staphyloma of the left eye measuring 9.77 mm in depth. The patient's right eye was entirely normal, and she showed no systemic abnormalities. CONCLUSION: Although extremely rare, the peripapillary staphyloma may cause severe visual impairment of the affected eye in an otherwise healthy individual unassociated with systemic abnormalities.

Electroretinography↗
PubMed1997

Early treatment of posterior retinopathy of prematurity: a controlled trial.

OBJECTIVE: The purpose of the study is to assess the possible benefits of early laser treatment for posterior retinopathy of prematurity (ROP) and to provide data concerning the natural history of posterior ROP. DESIGN: The study design was a prospective, multicenter, randomized trial. PARTICIPANTS: A total of 19 infants with prethreshold posterior ROP were studied. INTERVENTION: Randomization to immediate indirect laser photocoagulation or observation, with application of laser photocoagulation for those control eyes reaching threshold disease, was performed. MAIN OUTCOME MEASURES: Patients were assessed at 3 months and the anatomic outcome recorded along with any adverse treatment effects. RESULTS: An unfavorable structural outcome developed in 3 (16%) of 19 early treatment eyes compared with 3 (18%) of 17 for those treated only if threshold disease was reached. Of the 17 control eyes, 15 (88%) reached threshold disease. Progression to threshold occurred within 1 week in all but two eyes. All 12 control eyes with posterior ROP and any amount of extraretinal fibrovascular proliferation progressed to threshold disease. CONCLUSIONS: Although the number of patients studied is too small to reach statistical significance, the likelihood of a favorable outcome for eyes with prethreshold posterior ROP treated immediately with laser photocoagulation is comparable to that obtained by withholding treatment until threshold disease is reached. There is a high probability of progression from prethreshold to threshold disease, usually within 1 week or less.

Disease Progression↗
PubMed1996

Use of perflubron as a new temporary vitreous substitute and manipulation agent for vitreoretinal surgery. Wills Eye Hospital Perflubron Study Group.

PURPOSE: The authors determine the intraocular tolerance of a new widely used liquid perfluorocarbon, perfluoroctylbromide (perflubron). METHODS: Pars plana vitrectomy was performed on 54 eyes of 54 patients with vitreoretinal disorders at three centers. Diagnoses included giant retinal tears, proliferative vitreoretinopathy, and dislocated intraocular and crystalline lenses. At the conclusion of the vitrectomy, perflubron was removed. RESULTS: Perflubron was efficacious for vitreoretinal manipulation. Of the 45 eyes with retinal detachment, 23 (51.1%) of the retinas were reattached after a single surgery; redetachment occurred in 22 (48.9%) after the initial procedure, and further surgery was necessary to reattach the retina. Final retinal reattachment was achieved in 40 (88.9%) eyes. Mean visual acuity improvement was six lines (P < 0.0019). Visualization of the water/perfluorocarbon interface was good. There was no evidence of adverse effects from perflubron on the retina, lens, or anterior segment. CONCLUSION: Findings indicate that perflubron is safe for temporary intraoperative use intravitreally. The absence of adverse effects is consistent with the properties of perflubron that our group has studied in the eyes of animals and in other uses in human patients.

Adolescent↗
PubMed1993

Extracapsular cataract extraction with placement of a posterior chamber lens in patients with diabetic retinopathy.

PURPOSE: The authors evaluated factors that might influence the outcome of extracapsular cataract extraction with placement of a posterior chamber lens in patients with diabetic retinopathy. The factors included patient age and sex, severity of the retinopathy, preoperative laser photocoagulation, vitrectomy, and posterior capsulotomy. METHODS: The records of 109 patients who had been examined by the authors before cataract surgery were retrospectively reviewed. RESULTS: The final visual acuity in only 48% of the eyes was 20/40 or better, and 28% had 20/200 or worse visual acuity. Only 65% had an improvement in visual acuity of two or more Snellen lines. Eyes with preoperative macular edema had a poorer visual outcome than eyes without. Macular edema and ischemia accounted for 70% of the eyes with a final visual acuity of 20/50 or worse. The authors found that age was a strong predictor of final visual acuity and chances of improvement. In patients 63 years of age and younger, 58% had 20/40 or better and 81% had improved visual acuity. In patients 64 years of age and older, only 38% had 20/40 or better and only 54% were improved. Supplementary panretinal photocoagulation was required in 37% of patients who had received it preoperatively. Neovascularization of the iris developed in 6% of patients. Posterior capsulotomy did not cause an increased incidence of neovascularization of the iris or in the development or progression of proliferative retinopathy or macular edema. CONCLUSION: The prognosis of patients with diabetic retinopathy about to undergo cataract surgery, even extracapsular cataract extraction with placement of a posterior chamber lens, is guarded.

Adult↗
PubMed1993

A simple technique for controlled subretinal injections.

Recently developed vitrectomy techniques for management of choroidal neovascular membranes and subretinal hemorrhages often involve the subretinal injection of fluid materials. A simple, inexpensive infusion system that allows for the controlled injection of fluid, allowing use of a minimal amount of fluid and maximizing surgeon control, is described.

Choroid↗
PubMed1992

Repair of retinitis-related retinal detachments with silicone oil in patients with acquired immunodeficiency syndrome.

To provide prompt visual rehabilitation and to reduce the need for repeated operations, we performed vitrectomy with silicone oil tamponade in 16 consecutive eyes with retinal detachments related to cytomegalovirus retinitis and acute retinal necrosis in 13 patients with acquired immunodeficiency syndrome. In all 16 eyes (100%), retinas were reattached with one operation. Preservation of ambulatory vision was achieved in six of eight eyes (75%; mean follow-up, 14.6 weeks). No patient with hand motion visual acuity or worse preoperatively recovered ambulatory vision. Visual acuity recovery was limited by optic nerve disease in five eyes (31%). Silicone oil-related side effects did not adversely affect visual outcome in any eye. Six patients (46%) have since died (mean, 4.4 months postoperatively). These data indicated that successful surgical repair of these detachments can be consistently achieved with this approach. The prognosis for ambulatory vision is strongly related to preoperative visual acuity.

Acquired Immunodeficiency Syndrome↗
PubMed1992

Diode laser photocoagulation for retinopathy of prematurity. Preliminary results.

In a prospective, randomized clinical trial comparing transscleral cryotherapy with laser photocoagulation in the treatment of "threshold" stage 3+ retinopathy of prematurity, 32 infants were treated with diode laser photocoagulation in one eye. Twenty-eight infants have been followed up for at least 3 months, and seven have been followed up for at least 1 year. Twenty-five of 28 eyes treated with diode laser photocoagulation and followed up for at least 3 months have undergone regression. Of 24 fellow eyes treated with cryotherapy and followed up for at least 3 months, 20 have undergone regression. All seven eyes treated with diode laser photocoagulation and followed up for at least 1 year have undergone regression. Of seven fellow eyes treated with cryotherapy and followed up for at least 1 year, all have undergone regression. Our results suggest that diode laser photocoagulation is as effective as cryotherapy in the treatment of retinopathy of prematurity.

Cryosurgery↗
PubMed1992

A method for induction of posterior vitreous detachment during vitrectomy.

Complete surgical removal of the posterior vitreous requires the presence of a posterior vitreous separation from the retina. Although a partial or complete posterior vitreous detachment is usually present before surgery, occasionally this separation must be induced during the course of a pars plana vitrectomy. A simple method for creation of a posterior vitreous detachment during surgery is described. This alternative technique seems to be an efficient and safe method for achieving this important surgical objective.

Electrocoagulation↗
PubMed1992

Tissue plasminogen activator irrigation to facilitate removal of subretinal hemorrhage during vitrectomy.

I report removing a large submacular hemorrhage by means of vitrectomy combined with use of tissue plasminogen activator (tPA) to facilitate clot removal. Four months postoperatively, the vision was 20/100 and the retina was flat, with a very thin layer of residual hemorrhage and pigmentary alteration in the macula. Although the long-term prognosis is guarded, this case does suggest that tPA may be a useful adjunct in managing selected cases of subretinal hemorrhage associated with macular degeneration.

Aged↗
PubMed1991

Long-term stability and visual outcome after favorable initial response of proliferative diabetic retinopathy to panretinal photocoagulation.

The authors assessed the relationship between early objective response to panretinal photocoagulation (PRP) and the subsequent long-term visual outcome in 59 eyes of 59 consecutive patients who developed proliferative diabetic retinopathy while under the care of a retinal specialist. Thirty five eyes (59%) had regression of high-risk retinopathy characteristics within 3 months of treatment. Eighteen of these eyes (52%) had a final visual acuity of 20/20 or better with a mean follow-up of more than 4 years. Only 2 of the 24 nonresponder eyes (8%) had visual acuity of 20/20 or better. Thirteen of the responder eyes (37%) sustained a delayed vitreous hemorrhage, which was usually self-limited. Three responders underwent vitrectomy with excellent visual results. The authors conclude that the beneficial effect of PRP on visual outcome is directly related to the regression of retinopathy risk factors and that the long-term visual prognosis in high-risk eyes manifesting a favorable initial response to PRP is excellent.

Adult↗
PubMed1991

Retrobulbar bupivacaine irrigation for postoperative pain after scleral buckling surgery. A prospective study.

The authors conducted a prospective, randomized, double-masked clinical trial to determine if retrobulbar irrigation with bupivacaine hydrochloride 0.75% (Marcaine) has an effect on postoperative pain after scleral buckling surgery. Fifty consecutive patients undergoing scleral buckling under general anesthesia were randomized to receive either bupivacaine or balanced salt solution as a retrobulbar irrigation at the end of their retinal detachment procedure. Of the 25 patients who received bupivacaine, only three (12%) required parenteral pain relief in the first 24 hours after surgery. This was statistically significant when compared with the 18 (72%) of 25 patients requiring parenteral pain relief in the placebo group (P less than 0.0001). In addition, when questioned about their perception of the degree of postoperative pain, patients in the control group rated their level of pain as significantly more severe than did patients in the bupivacaine group. The authors conclude that retrobulbar irrigation with bupivacaine is a safe and effective way to achieve postoperative pain relief after surgery for scleral buckling.

Adolescent↗