Bacteriology of lacrimal drainage system following obstruction of the nasolacrimal duct in a reference Population

Context:Lacrimal drainage system obstruction gives discomfort to patients and threatens intraocular surgeries by infection, thus, knowledge of its bacteriology leads to the choice of effective therapy.Aim:To determine the bacteriology of nasolacrimal duct obstruction in an adult Libyan patient population and to analyze the appropriate antimicrobial therapy based on susceptibility testing.Settings and Design:A prospective study was conducted at the Great River Eye hospital, Benghazi/Libya in the period between September 2005 and February 2007.Methods:Lacrimal swab materials collected from patients aged 1862 years who were diagnosed as having lacrimal passage obstruction and referred for lacrimal drainage surgery. The specimens were cultured and results analyzed.Results:Of 86 cases, 87.2% yielded a positive culture result. The majority of microorganisms were gram positive bacteria (73.3%) with Staphylococcus Aureus being the most frequently cultured species (36%) of the sample. Gram negative bacteria represented 26.7% of the isolates. The most common gram negative bacteria were Pseudomonas, Klebsiella, and E. coli which were isolated in 8% of the cases each. Staphylococcus aureus was isolated from 28.6% of cases having epiphora with no clinical signs of lacrimal drainage system infection. Ciprofloxacin (96%) and Gentamycin (94.7%) were found to be the most sensitive antibiotics against isolated organisms.Conclusions:Adult patients with lacrimal drainage system obstruction harbor microorganisms in their lacrimal sacs indicating the importance of investigating patients before planning for intraocular surgeries and considering prophylactic use of antibiotics before lacrimal drainage procedures

Uma comparação crítica entre a Lista de Medicamentos Essenciais para Crianças da Organização Mundial de Saúde e a Relação Nacional de Medicamentos Essenciais (Rename) / A critical comparison between the World Health Organization list of essential medicines for children and the Brazilian list of essential medicines (Rename)

OBJECTIVE: To perform a critical comparison between the Brazilian national essential medicines list (Rename, 2012) with the list of essential medicines for children (LEMC, 2011) of the World Health Organization (WHO), regarding the differences among drugs and formulations listed for children. METHODS: The LEMC drugs were classified into four categories: 1) absent in Rename; 2) included in Rename but without any formulation suitable for children; 3) listed in Rename only in some formulations; 4) present in Rename in all formulations. The missing formulations were analyzed by therapeutic group. Alternatives present in Rename were searched. RESULTS: From the 261 drugs of interest on the LEMC, 30.3% are absent from Rename, 11.1% are in Rename but without any pediatric formulation, and 32.2% are present in some but not all formulations listed in LEMC. Considering all formulations items listed in the LEMC (n = 577), 349 are missing from Rename, of these 19.6% due to their strength, and 18.5% due to the the dosage form. Useful formulations specific for neonatal care, respiratory tract, central nervous system, and anti-infectives, among other groups, are missing. CONCLUSIONS: The lack of age-appropriate formulations of essential medicines for children in Brazil includes important therapeutic groups and indispensable drugs for severe clinical conditions. Some of these products exist in the Brazilian pharmaceutical market, but not in public facilities; others could be produced by national laboratories with commercial interest or stimulated by a specific governmental policy, as in other countries.

OBJETIVO: Realizar uma comparação crítica entre a Relação Nacional de Medicamentos Essenciais (Rename, 2012) e a Lista de Medicamentos Essenciais para Crianças (LMEC, 2011) da Organização Mundial de Saúde (OMS), com relação às diferenças entre os medicamentos e as formulações listadas para crianças. MÉTODOS: Os medicamentos da LMEC foram classificados em quatro grupos: 1) não constam na Rename; 2) constam na Rename, porém sem qualquer formulação adequada para crianças; 3) listados na Rename apenas com algumas formulações; 4) constam na Rename em todas as formulações. As formulações que faltam foram analisadas por grupos terapêuticos. As alternativas presentes na Rename foram pesquisadas. RESULTADOS: Dos 261 medicamentos de interesse listados na LMEC, 30,3% não estão presentes na Rename, 11,1% estão na Rename, mas sem qualquer formulação pediátrica, e 32,3% estão presentes em algumas, mas não todas as formulações listadas na LMEC. Considerando todos os itens de formulações listados na LMEC (n = 577), 349 não constam na Rename, desses, 19,6% devido à intensidade de dosagem, e 18,5% devido à forma farmacêutica. Faltam formulações úteis específicas para cuidado neonatal, trato respiratório e sistema nervoso central, anti-infecciosos, entre outros grupos. CONCLUSÃO: A ausência de formulações adequadas à idade de medicamentos essenciais para crianças no Brasil inclui importantes grupos terapêuticos e medicamentos indispensáveis para quadros clínicos graves. Alguns desses produtos são encontrados no mercado farmacêutico brasileiro, porém não existem em unidades públicas; outros poderiam ser produzidos por laboratórios nacionais com interesse comercial ou estimulados por uma política governamental específica, como é feito em outros países.

Modifications of the sympathetic skin response in workers chronically exposed to lead

The long-term effects of low-level lead intoxication are not known. The sympathetic skin response (SSR) was evaluated in a group of 60 former workers of a primary lead smelter, located in Santo Amaro, BA, Brazil. The individuals participating in the study were submitted to a clinical-epidemiological evaluation including questions related to potential risk factors for intoxication, complaints related to peripheral nervous system (PNS) involvement, neurological clinical examination, and also to electromyography and nerve conduction studies and SSR evaluation. The sample consisted of 57 men and 3 women aged 34 to 69 years (mean ± SD: 46.8 ± 6.9). The neurophysiologic evaluation showed the presence of lumbosacral radiculopathy in one of the individuals (1.7 percent), axonal sensorimotor polyneuropathy in 2 (3.3 percent), and carpal tunnel syndrome in 6 (10 percent). SSR was abnormal or absent in 12 cases, representing 20 percent of the sample. More than half of the subjects (53.3 percent) reported a history of acute abdominal pain requiring hospitalization during the period of work at the plant. A history of acute palsy of radial and peroneal nerves was reported by about 16.7 and 8.3 percent of the individuals, respectively. Mean SSR amplitude did not differ significantly between patients presenting or not the various characteristics in the current neurological situation, except for diaphoresis. The results suggest that chronic lead intoxication induces PNS damage, particularly affecting unmyelinated small fibers. Further systematic study is needed to more precisely define the role of lead in inducing PNS injury.