silicone(redirected from Polysiloxane)
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siliconeA family of inert, synthetic polymers composed of a repeating unit -R2Si-O-, in which -R is a simple alkyl group (a hydrocarbon). Silicones can be produced in various forms (e.g., adhesives, sponges, solid blocks and gels) and are widely used in medicine, given their stability, water repellency and inert nature.
One formerly popular silicone, polydimethylsiloxane, was enclosed in plastic bags of various sizes and shapes for use in plastic surgery to impart cosmetically acceptable contours to soft tissues, most commonly used in women for breast augmentation and in men for chin augmentation. The complications of such implants in trained hands are minimal and are confined to rupture of the bags and/or fibrosis. Subcutaneous, often illicit, injection of silicone for breast enlargement without the enclosing bag (as may be self-administered by transsexual males) may be associated with high fever, diffuse arthritis, renal failure, dry cough, haemoptysis, diffuse bilateral pulmonary infiltrates with patchy, ill-defined airspace consolidation, acute pneumonitis, hypoxemia, alveolitis (alveolar macrophages with silicone inclusions, neutrophils and eosinophils), decreased pulmonary function and granuloma formation.
siliconeA polymer composed of a repeating unit –R2Si–O– in which –R is a simple alkyl group–a hydrocarbon; silicones are produced in various forms–eg, adhesives, sponges, solid blocks, gels, and widely used in medicine, as they are stable, repel water and inert Medical devices Silicone is used for hydrocephalic shunts, pacemakers, implantable drug-delivery pumps, dialysis and chemotherapy ports, ostomy systems, tracheal and feeding tubes, central venous catheters, myringotomy tubes, cochlear implants, intraocular lenses, intra-aortic balloons, angioplasty devices, cardiac valves, vascular ports, various types of sheeting, and small-joint orthopedic devices 3 forms of silicone are used to fabricate implants: polymer–relatively hard; significant 'bleeding' is rare; elastomer–pliable; some silicone 'bleeding' occurs; gel–'bleeding' is common Plastic surgery Various formulations of silicone have been used in cosmetic surgery; one formerly popular silicone, polydimethylsiloxane, was enclosed in plastic bags of various sizes and shapes and implanted subcutaneously to impart cosmetically acceptable contours to soft tissues, most commonly in ♀ for breast augmentation, and in ♂ for chin augmentation; the complications of such implants in trained hands are minimal and confined to rupture of bags and/or fibrosis. See Breast implants, Human adjuvant disease, Mammoplasty.
siliconeAny polymeric (long-chain), organic compounds of silicon and oxygen in which each silicon atom is linked to an alkyl group. Silicones may be produced as oils, greases or rubbers. Silicone rubber (Silastic) is a valuable prosthetic surgical structural material as it is inert and permeable to oxygen and well tolerated by the tissues.
Patient discussion about silicone
Q. Do any of you with FM have silicone breast implants, or have you ever had them? How about saline? My silicone implants expired on the surgeon's shelf before they went in my body. Both implants ruptured and disintegrated within 5 years of implantation. I was diagnosed with FM shortly after 2 surgeries to remove silicone goo. Just wondering if anyone else has made the connection. Thank you!
You can read about this subject here (http://en.wikipedia.org/wiki/Breast_implants#Claims_of_systemic_illness_and_disease)