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Biomedical subjects

Mangat Ram Dogra

Publications and source records attributed to Mangat Ram Dogra.

4 recordsLinked to original sources

Intractable glaucoma following intravitreal triamcinolone in central retinal vein occlusion.

PURPOSE: To document secondary glaucoma observed after intravitreal injection of triamcinolone for cystoid macular edema in central retinal vein occlusion. DESIGN: An interventional case series. METHODS: Retrospective study. The setting was a tertiary care referral institute. Nine patients with central retinal vein occlusion and cystoid macular edema received 4.0 mg/0.1 ml of intravitreal triamcinolone acetate injected through the inferior pars plana under topical anesthesia. Baseline intraocular pressures were normal in all, and no patients had glaucoma. RESULTS: Seven of the nine patients had a post-injection rise in intraocular pressures, of which one had intractable secondary glaucoma requiring removal of the depot corticosteroid by pars plana vitrectomy combined with trabeculectomy. Two patients were controlled only by maximal medical therapy. CONCLUSIONS: The occurrence of intractable glaucoma after intravitreal triamcinolone in central retinal vein occlusion is a serious concern and warrants caution in the use of this modality for these patients.

Adult↗

Presumed tubercular serpiginouslike choroiditis: clinical presentations and management.

PURPOSE: Choroiditis, choroidal tubercles, and tuberculomas are well known ocular manifestations of systemic tuberculosis. The present series aimed to report the occurrence of serpiginouslike choroiditis of presumed tubercular origin. DESIGN: Retrospective, noncomparative, interventional case series. PARTICIPANTS: Eleven eyes in seven consecutive patients with a diagnosis of choroidal tuberculosis simulating serpiginous choroiditis were studied between 1997 and 2000. TESTING AND INTERVENTION: All patients had their fundus photographs taken at the time of initial presentation as well as during follow-up. All patients underwent a Mantoux skin test and chest radiography. In addition, five patients had their aqueous or vitreous humor subjected to polymerase chain reaction (PCR) for Mycobacterium tuberculosis. Sputum examination, biopsy, or both were carried out whenever recommended by the pulmonologist. Systemic antituberculosis chemotherapy was instituted in combination with treatment for ocular inflammation. MAIN OUTCOME MEASURE: Therapeutic response and visual improvement. RESULTS: There were five men and two women ranging in age from 17 to 32 years. Clinical presentations included three morphologic variants; multifocal progressive choroiditis showing wavelike progression to confluent, diffuse lesions resembling serpiginous choroiditis (three eyes); diffuse choroiditis characterized by diffuse plaquelike choroiditis with an amoeboid pattern suggestive of serpiginous choroiditis at initial presentation (four eyes); and mixed variety where opposite eyes had mixed features (four eyes). All patients had strongly positive Mantoux skin test results and positive chest radiograph results. The PCR results from aqueous and vitreous humor in four samples was positive for Mycobacterium tuberculosis; one had sputum positive for acid-fast bacilli, whereas two had histopathologic evidence of tuberculosis from cervical or parahilar lymph nodes. Treatment was associated with resolution of choroidal lesions and visual improvement. Final visual acuity of 20/30 or better was achieved in five eyes. CONCLUSIONS: Choroidal tuberculosis may present as multifocal progressive or diffuse choroiditis resembling serpiginous choroiditis. It is important to recognize these presentations because these eyes show good response to systemic antituberculosis chemotherapy.

Adolescent↗

Papillary carcinoma thyroid presenting as a choroidal metastasis. Report of a case and brief review of literature.

A patient of papillary thyroid carcinoma, who initially presented with a choroidal metastasis and secondary intractable glaucoma is reported. The orange-coloured tumour posed a diagnostic difficulty, until histopathology of the enucleated eye confirmed the metastasis from the thyroid. The initial presentation of distant metastasis in patients with thyroid cancer is rare.

Aged↗

Ocular explosion after peribulbar anesthesia.

We report 3 cases of globe rupture after peribulbar anesthesia. We discuss the predisposing factors, presenting features, and visual outcome after this complication. Globe explosion is a severe complication of inadvertent intraocular injection during peribulbar anesthesia. Visual outcome after vitrectomy is generally poor; however, cases that do not develop a retinal detachment may achieve good results.

Adult↗