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M F Perena

Publications and source records attributed to M F Perena.

4 recordsLinked to original sources
PubMed2002

[Nasolacrimal stent: modifications to Ho-Young Song's technique].

PURPOSE: To introduce modifications to Song's technique in the treatment of nasolacrimal occlusion by means of a polyuretane stent. MATERIAL AND METHOD: Thirty five polyuretane stents were placed under fluoroscopic guidance in 32 patients diagnosed with total and partial nasolacrimal occlusion. CONCLUSION: Technical success rate was 90%. Sixteen right and nineteen left nasolacrimal systems were probed. The introduction of a guidewire through the lower punctum, the use of a Ritleng guide, a Crawford hook and ocular protectors are modifications of Song's procedure that may help in successfully performing this technique in a fast and easy way.

Adult↗
PubMed2000

[Primary retinal vasculitis].

CASE REPORT: We present the case of a 22-year-old Caucasian female who consulted because of a brief episode of blurred vision in her right eye. Funduscopic findings in right eye included marked venous tortuousness and roundish paramacular haemorrhages. A slight venous tortuousness in left eye. Fluorescein angiography showed a segmentary retinal vasculitis affecting medium calibre vessels of the posterior pole. Complementary examinations ruled out any systemic involvement. After therapy with oral corticoesteroids the case evolves to remission. DISCUSSION: The diagnosis of retinal vasculitis is achieved by the performance of ophthalmoscopy and fluorescein angiography. Prior studies have ruled out the need for complementary examinations to find any systemic involvement in patients.

Adult↗
PubMedDate not supplied

Nasolacrimal polyurethane stent placement: preliminary results.

PURPOSE: To present our initial results in the treatment of nasolacrimal obstruction by placing a polyurethane stent. METHODS: 74 nasolacrimal stents were implanted under fluoroscopic guidance in obstructed nasolacrimal systems of 64 patients. Dacryocystography and CT were used to verify the position and patency of the stents. Mean follow-up was 15 months. Clinical examinations were done at the first week, first month, third month and sixth month after stent placement. RESULTS: Polyurethane stents were successfully inserted and permeable in 59 patients (92.1%), but could not be inserted in 5 patients (7.8%). Epiphora was solved and permeable in 53 cases (82.8%), it was not permeable but asymptomatic in 2 cases (3.1%), and was not permeable but symptomatic in 4 (6.2%). In 5 cases (7.8%) stents remained permeable although patients complained of epiphora. CONCLUSIONS: Polyurethane stent placement is a non-invasive technique that can replace dacryocystorhinostomy, giving better results and tolerance.

Adolescent↗