17 de fev. de 2012

Legionella Consultório Odontológico

Notícias sobre caso de Legionellose na Itália, vem sendo notícia na mídia internacional. O caso ocorreu em um consultório dentário. 

Tema Legionella tem sido nossa tópico principal, devido sua gravidade.

Dental News

UK dental rules control 'risks from legionella'
17th Feb 2012
Thorough guidance on decontamination in primary dental care should control any risks from legionella.
That's according to the Department of Health today in light of a case of an elderly woman who died from Legionnaire's disease after she contracted the infection from a dental practice in Italy.
The DH issued a statement today after the case was reported in The Lancet.
A government spokesperson said that it 'required practices in England to comply with best practice guidance on controlling the risks from legionella and to carry out a risk assessment'.

Woman Dies After Contracting Legionnaires' Disease From Dentist's Office
ABC News

Italian woman died after she contracted Legionnaires' disease, a severe, pneumonia-like illness, from the water in her dentist's office, according to a case report published in the journal The Lancet.
Scientists who determined the source of the woman's illness, which occurred in February 2011, said during the disease's incubation period the woman only left her home twice to visit her dentist.

Contaminated Dental Surgery Equipment Source of Legionnaire's Disease Death
Medical News Today

This week's issue of The Lancet describes a case report of woman in Italy who died of Legionnaires disease after becoming infected with L pneumophila at her dentist. This case has prompted the authors - led by Dr Maria Luisa Ricci at the Istituto Superiore di Sanità, Rome, Italy, to call for various control measures at dental surgeries to prevent similar incidents.

Woman Dies After Dentist Visit From Legionnaires’ Disease

Legionnaire disease is an infection that is usually caused by air-conditioning systems, hot-water systems, spas and fountains that are not properly cleaned or maintained. On Friday, doctors reported the first known case of Legionnaire disease caused by a visit to the dentist office in Rome.

Woman contracts deadly disease from dental water line

“Aerosolized water from high-speed turbine instruments was most likely the source of the infection.”

Legionnaires' disease was promptly diagnosed after a Legionella pneumophila urinary antigen test was conducted, and oral antibiotics (ciprofloxacin every 12 hours) were started immediately. But the patient developed rapid and irreversible septic shock and died two days later, according to the report authors. An investigation to find the source of L. pneumophila infection was initiated.
Water samples were taken from the tap and the high-speed turbine of the dental unit water lines, as well as from the dental practice's taps and the patient's home (taps and shower) in order to investigate possible L. pneumophila contamination.
All samples from her home were negative on culture, but those from the dental practice were positive for L. pneumophila. Laboratory experiments demonstrated genomic matching between L. pneumophila found in the patient's respiratory secretion and the dental unit water line.

"L. pneumophila is a gram-negative bacterium ubiquitous in natural water environments and found also in man-made water systems," the authors wrote. "It can infect people by inhalation or microaspiration of aerosolized water causing a severe pneumonia known as Legionnaires' disease, mainly affecting elderly and immune-compromised patients, or a flu-like disease, known as Pontiac fever."

Sources of infection have been shown to be primarily air-conditioning systems, hot-water systems, spas, and fountains. Significant contamination of dental unit water lines with Legionella has been widely documented, according to the authors.


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