نتایج جستجو برای: silicone
تعداد نتایج: 9601 فیلتر نتایج به سال:
INTRODUCTION A foreign body reaction due to silicone where it is infiltrated or at the places to which it can migrate is known as siliconoma. The use of silicone in breast augmentation procedures can provoke this reaction at the neck level in cases of leakage from mammary implants. METHODS We reviewed the cases of patients with increased size neck lymph nodes who had previously undergone plas...
BACKGROUND To describe one modified method of having machine-independent removal of 5,000 centistokes silicone oil through 23-gauge trocar-cannulas. METHODS Consecutive patients with silicone oil tamponade for more than four months and with complete retinal reattachment were included. Two 23-gauge trocars were used to make sclerotomies while the microcannulas remained in situ for intravitreou...
PURPOSE To describe vision loss associated with the use or removal of silicone oil retinal tamponade. METHODS Records were reviewed of all patients with a decrease in visual acuity of at least 3 Snellen lines from best acuity with 5000 centistoke silicone oil in place or after removal of silicone oil at a single retina-only practice between 1996 and 2006. RESULTS Nine patients (6 men, 3 wom...
In the aphakic eye, with intact iris diaphragm, silicone oil has frequently caused a pupillary block. In this situation aqueous humour accumulates behind the iris and forces silicone oil through the pupil into the anterior chamber. An iridectomy at the 6 o'clock position can effectively prevent this pupillary block. The iridectomy allows free passage of aqueous to the anterior chamber which rem...
PURPOSE To evaluate the tamponade effect on the retina of a heavier-than-water silicone oil mixture and to compare it with the effect of silicone oil. METHODS Prospective, non-randomised, comparative pilot study. Phakic/pseudophakic patients with retinal detachment undergoing vitrectomy with Densiron 68 or silicone oil were recruited. The 'separation volume', defined as the relative volume of...
Despite modern and sophisticated vitreoretinal techniques, the authors are convinced that an underreported patient group exists, for whom long-term silicone oil tamponade is unavoidable. We conducted a literature review of the current evidence base in order to provide guidance on the ocular tolerance and side effects of long-term silicone oil, weighing up benefits against complications as well ...
A woman with a history of bilateral mastectomy and silicone implants for fibrocystic disease and a history of atrial septal defect repair presented with pleural nodules on a chest radiograph. A thorascopic biopsy performed for possible mesothelioma demonstrated chronic inflammation and focal pleural fibrosis due to a foreign-body reaction secondary to silicone. This was confirmed using scanning...
Objective: To report opacification of hydrophilic acrylic and silicone foldable intraocular lenses (IOL). Designs: Case series. Participants: Five patients with IOL opacification. Results: We report five eyes of five patients with late opacification of the intraocular lens (IOL). Three patients had hydrophilic acrylic (SC60B-OUV-MDR, Inc), two had silicone IOL (Allergan SI30NB). Two out of the ...
QuickSite (St Jude Medical, Sylmar, CA, USA) is a silicone and polyurethane-insulated coronary sinus pacing lead. Riata lead (St Jude Medical, Sylmar, CA, USA) is a silicone insulated right ventricular shock lead. Recently, insulation breach of silicone based leads raised a huge concern. Fluoroscopic examination of these two leads in the same patient revealed externalization of these two leads....
Silicone oil use as an adjunct to complicated vitreoretinal surgery is becoming more frequent. Refractory glaucoma in these patients is common. Isolated reports have mentioned the possibility of silicone oil migrating and/or obstructing the tube in the anterior chamber of Molteno implants (IOP, Costa Mesa, Calif). This report describes a case of intraocular silicone oil egressing through an Ahm...
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