Subject(s)
Cross Infection , Skin Neoplasms , Humans , Polyethylene , Mucous Membrane , Skin , Sutures , DermoscopyABSTRACT
The objectives of this study were to demonstrate that the presence of ethanol in a solution containing two esters and two aromatic alcohols has several consequences on the sorption of these compounds into polyethylene (PE) film. First, sorption of ethanol into the PE film occurred at the same time as water and reached 8 kg m(-3) using 12% v/v of ethanol. This sorption was associated with an increase in PE crystallinity, which may have prevented the sorption of volatile compounds despite their strong affinity with PE film, as evaluated by Hansen solubility parameters. Moreover, increasing the ethanol concentration increased the solubility of the four volatile compounds. In the case of aromatic alcohols, the sorption was decreased in the presence of ethanol as expected. In the case of esters, as their hydrolysis was substantial in the presence of water, the consequence was a higher sorption into the PE film in the presence of ethanol than in its absence. Nevertheless, the sorption also depended on the concentration of ethanol and the heterogeneity of the ethanol-water mixture as well as the presence of other volatile compounds, as in the case of 4-ethylphenol. In conditions simulating wine packaging, losses of volatile compound by sorption and by permeation estimated after only 5 days of contact varied between 0.08 and 25% for 2-phenylethanol and ethyl hexanoate, respectively.
Subject(s)
Ethanol/chemistry , Food Packaging/instrumentation , Polyethylene/chemistry , Volatile Organic Compounds/chemistry , Wine/analysis , Adsorption , KineticsABSTRACT
CASE REPORT: A case of bilateral facial palsy with paralytic ectropion, lagophthalmos and corneal damage secondary to corneal exposure in a long-standing patient with lepromatous leprosy is presented. Correction of paralytic ectropion was performed by medial cantoplasty, tarsal strip and Medpor lower eyelid spacer implantation. Lagophthalmos was corrected by gold weight implant in the upper tarsus. DISCUSSION: Ocular findings in leprosy appear in 72% of patients. Facial nerve palsy occurs in 3-19.8%, being bilateral in 5%. In long standing cases with corneal complications secondary to exposure, surgical treatment is required.
Subject(s)
Eyelid Diseases/etiology , Facial Paralysis/etiology , Leprosy, Lepromatous/complications , Aged , Ectropion/etiology , Ectropion/surgery , Eyelid Diseases/surgery , Facial Nerve/physiopathology , Female , Gold , Guinea/ethnology , Humans , Polyethylene , Prostheses and ImplantsABSTRACT
Caso clínico: Paciente con lepra lepromatosa de larga evolución, con parálisis facial bilateral que provoca ectropión paralítico, lagoftalmos e importante afectación corneal por exposición. Procedemos a corrección quirúrgica del ectropión con cantoplastia interna, tira tarsal y colocación de espaciador de medpor® suturado a borde tarsal inferior. El lagoftalmos es corregido mediante implantación de pesa de oro palpebral suturada a tarso superior.Discusión: La afectación ocular por lepra aparece en un 72 por ciento de los casos. La parálisis facial afecta a un 3-19,8 por ciento de los pacientes, siendo bilateral en un 5 por ciento. En casos avanzados, con complicaciones derivadas de la exposición corneal, es preciso tratamiento quirúrgico (AU)
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Subject(s)
Aged , Female , Humans , Leprosy, Lepromatous , Guinea , Prostheses and Implants , Polyethylene , Ectropion , Facial Paralysis , Facial Nerve , Eyelid Diseases , GoldABSTRACT
CASE REPORT: A case of bilateral facial palsy with paralytic ectropion, lagophthalmos and corneal damage secondary to corneal exposure in a long-standing patient with lepromatous leprosy is presented. Correction of paralytic ectropion was performed by medial cantoplasty, tarsal strip and Medpor lower eyelid spacer implantation. Lagophthalmos was corrected by gold weight implant in the upper tarsus. DISCUSSION: Ocular findings in leprosy appear in 72 per cent of patients. Facial nerve palsy occurs in 3-19.8 per cent, being bilateral in 5 per cent. In long standing cases with corneal complications secondary to exposure, surgical treatment is required.