1,721,061 research outputs found
Did a patient acquire legionella pneumophila from the cup filler of a dental unit or did a patient infected with l. pneumophila contaminate the cup filler?
No full textSchonning and colleagues reported the case of a man with diagnosis of leukaemia admitted to hospital to undergo bone marrow transplantation who underwent a dental check-up and high-dose chemotherapy and developed Legionnaires’ disease in the following days. The authors entitled their case report ‘Legionellosis acquired through a dental unit’ [1]. I showed that it was not possible to confirm whether the patient acquired Legionella pneumophila from a contaminated dental unit or whether the patient, already infected with L. pneumophila, contaminated the dental unit water system
From ‘Legionellosis acquired through a dental unit’ to ‘Was Legionellosis acquired through a dental unit?’
No full textThe case reported by Scho ̈nning et al.1 refers to a case described online by Lundholm of a 67-year-old male with a diagnosis of leukaemia. On 20 November 2012, the patient was admitted to hospital to undergo high-dose chemotherapy before undergoing bone marrow transplantation. On 22 November, he underwent routine dental examination. Chemotherapy was performed on 28 November. On 3 December, the patient started to show respiratory symptoms. He was admitted to the intensive care unit where he died from
Legionnaires’ disease (LD). The analysis of the environmental samples performed in the dental ward is intriguing. Water from the cup filler was positive [2000 colony-forming units (cfu)/L] for the same Legionella pneumophila serogroup 1 specimen detected in the patient’s sputum collected through bronchoscopy. All the remaining 38 water samples resulted negative. According to Lundholm, these samples included the dental unit, which was subjected to water treatment regularly. Despite this treatment, a high level of heterotrophic bacteria (200 cfu/mL) was detected in dental unit water
Elder neglect-oral diseases and injuries
No full textElder neglect (EN) is the failure of a designated caregiver to meet the needs of a dependent older person. World EN prevalence, meta-analyzed in this study, is 1.0% or 1.8% according to different statistical methods. Referring alleged EN cases to Adult Protective Services (APSs) by healthcare workers (HCWs) is mandatory in many countries. However, only few claims are substantiated, as EN could be confused with Self-Neglect, and neglect could be unintentional or due to caregiver unawareness. Screening tools are inaccurate, and their use is discouraged by public health organizations, because they lead to too many false positives, which engulf the already overwhelmed APSs. HCWs need effective tools with objective judgments, which do not hamper the HCW-caregiver-patient rapport and prevent lawsuits when allegations are unfounded. Orofacial EN manifestations (poor oral/denture hygiene, lack of needed/improper dentures, dry mouth, skin/mucosal rashes) are essential Forensic Markers of EN. I classified EN-associated oral diseases according to the unmet needs into four groups: (1) traumatic injuries due to lack of caregiver vigilance (e.g., maxillofacial fractures); (2) diseases due to oral hygiene deficiency (e.g., root caries); (3) diseases typical of the elderly with late/no diagnosis (e.g., oral cancer); and (4) diseases typical of the elderly exacerbated by psychological distress (e.g., oral lichen planus)
Occupational COVID-19 risk to dental staff working in a public dental unit in the outbreak epicenter
No full textObjective: The management of the COVID-19 outbreak occurred in Lombardy (Italy) implied that non-COVID-19 health care was remodeled, limiting adequate resources in non-hospital public dental healthcare settings. This situation offered the opportunity to investigate the occupational COVID-19 risk to dental staff in public non-hospital dental units.
Methods: An infection control protocol was designed for dental health care in the Territorial Health and Social Services Authority (ASST) "Melegnano and Martesana" (Milan). Since specific guidance from central authorities was lacking, information was gathered from international public health organizations. The probability to visit asymptomatic COVID-19-infected patients was estimated, and the occupational risk to dental staff was calculated.
Results: The probability to visit asymptomatic patients passed from 1.2% (95% confidence interval -95 CI, 0.6%-2.5%) in the first period (20 February-15 March 2020) to 11.1% (95 CI, 5.8%-23.6%) in the second period (16 March-30 April). Dentists and dental assistants did not develop COVID-19, while one nurse did, the nature of her occupational risk was unclear, as nurses provided prevalently non-dental health care. The probabilities of developing COVID-19 per worked hour per person excluding and including this uncertain situation were 0.0% (95 CI, 0.0%-3.2%) and 0.9% (95 CI, 0.1%-4.7%).
Conclusion: Relatively simple infection control procedures were enough to control occupational COVID-19 risk during the outbreak
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Restoration related salivary levels of mutans Streptococci: difference beetween Amalgam and composite
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