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Acute pulmonary inflammation induced by exposure of the airways to staphylococcal enterotoxin type B in rats discount levitra soft 20 mg visa impotence essential oils. Treatment of aerosolized cowpox virus infection in mice with aerosolized cidofovir best levitra soft 20 mg erectile dysfunction treatment vitamins. Efficacy of selected hand hygiene agents used to remove Bacillus atrophaeus (a surrogate for Bacillus anthracis) from contaminated hands purchase levitra soft 20 mg visa impotence female. Botulism: cause, effects, diagnosis, clinical and laboratory identification, and treatment modalities. Evaluation of a Chlamydophila psittaci infection diagnostic platform for zoonotic risk assessment. Measurement of staphylococcal enterotoxin B in serum and culture supernatant with a capture enzyme-linked immunosorbent assay. Quantitative detection of norovirus excretion in pediatric patients with cancer and prolonged gastroenteritis and shedding of norovirus. In vitro post-antibiotic effect of fluoroquinolones, macrolides, beta-lactams, tetracyclines, vancomycin, clindamycin, linezolid, chloramphenicol, quinupristin/dalfopristin and rifampicin on Bacillus anthracis. Clinical presentation of inhalational anthrax following bioterrorism exposure: report of 2 surviving patients. Bichat guidelines for the clinical management of botulism and bioterrorism-related botulism. Bichat guidelines for the clinical management of brucellosis and bioterrorism-related brucellosis. Antibiotic susceptibility of 65 isolates of Burkholderia pseudomallei and Burkholderia mallei to 35 antimicrobial agents. Bichat guidelines for the clinical management of glanders and melioidosis and bioterrorism-related glanders and melioidosis. Managing Q fever during pregnancy: the benefits of long- term cotrimoxazole therapy. Q fever pneumonia: are clarithromycin and moxifloxacin alternative treatments only? Oropharyngeal aspiration of ricin as a lung challenge model for evaluation of the therapeutic index of antibodies against ricin A-chain for post-exposure treatment. RiVax, a recombinant ricin subunit vaccine, protects mice against ricin delivered by gavage or aerosol. Inhalation toxicology of ricin preparations: animal models, prophylactic and therapeutic approaches to protection. Neutralization of staphylococcal enterotoxin B by soluble, high-affinity receptor antagonists. Evaluation of intravenous zanamivir against experimental influenza A (H5N1) virus infection in the cynomolgus macaques. Minocycline inhibits West Nile virus replication and apoptosis in human neuronal cells. Role of law enforcement response and microbial forensics in investigation of bioterrorism. Bioterrorism and its aftermath: dealing individually and organizationally with the emotional reactions to an anthrax attack. Clinical features, pathogenesis and immunobiology of severe acute respiratory syndrome. Clinical issues and research in respiratory failure from severe acute respiratory syndrome. Seasonality of infectious diseases and severe acute respiratory syndrome—what we don’t know can hurt us. The laboratory diagnosis of severe acute respiratory syndrome: emerging laboratory tests for an emerging pathogen. A case of catastrophic antiphospholipid syndrome presenting with acute respiratory distress syndrome as the initial manifestation. Acute respiratory distress syndrome in persons with tickborne relapsing fever—three states, 2004–2005. Selection of Antibiotics in Critical Care 26 Divya Ahuja Department of Medicine, University of South Carolina School of Medicine, Columbia, South Carolina, U. A portion of these patients present with life-threatening community-acquired infections, but all of them are susceptible to hospital-acquired infections on account of such necessary interventions as multiple vascular access lines, hemodynamic monitoring devices, mechanical ventilation, urethral catheter- ization, surgery, and trauma management. The familiar downsides include adverse drug reactions, colonization, and super- infection by opportunistic pathogens, cost, and—of global importance—emergence of increasingly difficult-to-treat drug-resistant strains. The purpose of this chapter is to review some principles pertaining to antibiotic selection. Such teams enhance the likelihood that the major principles for setting guidelines for antimicrobial use, which have been recognized for several decades, will indeed be honored in practice (2). Independent of institution setting, endorsement from hospital administration is essential to ensure sufficient authority, define program outcomes, and obtain necessary infrastructure, but the overarching desideratum is to achieve “buy-in” among all prescribing physicians. Such methods include computer-based surveillance, formulary restriction and preauthorization, prospective audit with intervention and feedback, and continuing medical education (3,5). Numerous studies over the past two decades demonstrate that inadequate antimicrobial therapy leads to increased mortality, prolonged lengths of stay, and poorer outcomes (6–9). Results of a study involving more than 600 patients indicated that the survival rate decreased by 7. Prior to the year 2000, investigations of the effect of initial “appropriate” antimicrobial therapy [usually defined by the use of agents to which the eventual pathogen(s) were determined to be susceptible] focused mainly on bloodstream infections, which allow easy retrospective analysis based on “clean” bacteriologic specimens. Such studies amply confirmed lower mortality rates for patients who received appropriate initial antimicrobial therapy (10,11). Overall mortality rate was 34%; the breakdown was 33% and 43% for patients who got adequate and inadequate antibiotics, respectively (12). Another Sepsis trial from Spain found excess in-hospital mortality of 39% with inadequate initial treatment. Factors to consider when prescribing initial empiric antimicrobial therapy include the following (Table 1): 1. The duration of hospitalization and recent antimicrobial exposure: Patients who have been hospitalized for less than 48 hours and who have not had recent exposure to antibiotics are more likely to have typical “community-acquired” pathogens. Common examples include Streptococcus pneumoniae and Haemophilus influenzae in pneumonia, E. Critically ill patients are also at risk for yeast infections, with reported rates of 1% to 2% of invasive candidiasis, although it still remains unclear whether to prescribe empiric antifungal drugs in the nonneutropenic patient (14). The clinical syndrome: Pneumonia in patients who have been hospitalized for more than 48 hours is most often due to gram-negative bacilli including P. Urosepsis in patients with prolonged hospitalization is commonly due to gram-negative bacilli. Patients who lack an obvious source of infection are classified as having “primary bacteremia (or fungemia),” which is most Selection of Antibiotics in Critical Care 489 490 Ahuja et al. Selection of Antibiotics in Critical Care 491 commonly due to vascular access lines. The severity of the patient’s underlying illness: Studies in the older literature classified patients’ underlying illnesses as “rapidly fatal” (that is, likely to result in death during the present hospitalization), “ultimately fatal” (that is, likely to result in death within 5 years), and “nonfatal. The take-home point is that one should err toward broader-spectrum empiric therapy for patients with serious underlying diseases on account of the smaller margin for error.
Delegates were something that many Deaf people aim to educate hearing peo- asked to complete a questionnaire which asked for their views ple about buy cheap levitra soft line erectile dysfunction suction pump, so that hearing parents are able to make informed about genetic technology and how they felt about its use with decisions about their child’s future discount levitra soft online erectile dysfunction pills with no side effects. Of the 87 delegates who completed questionnaires 20mg levitra soft mastercard impotence of organic origin 60784, ness has largely been ignored in the past (49). This situation is 55% thought that genetic testing for deafness would “do more improving but still has a long way to go to create a working harm than good”; 46% thought that its potential use “devalued partnership between parents of deaf children, the Deaf commu- d/Deaf people,” and 49% were concerned about new discover- nity, and professionals working in deafness (50). Here, the attitudes of d/Deaf, hard-of-hear- their feelings about new discoveries in genetics. The following ing, and deafened adults as well as hearing parents of deaf chil- are a selection of these. Participants were collected Some participants felt that new discoveries in genetics from medical and educational sources, social services, charities, would be positive: and support groups for the deaf, i. Participants were given a list of positive, neutral, and neg- Some had negative comments about new discoveries in ative words and asked to tick those from the list that described genetics: their feelings about new discoveries in genetics. The results “Angry at people trying to mess with nature and interfering with showed very different attitudes between groups (Fig. The New- Mixed feeling 34% born Hearing Screening Programme offers the opportunity to 32% 33% obtain a diagnosis as early as possible by screening all newborn Cautious 38% 27% babies for audiological deafness (57). A delayed diagnosis Negative 3% may impact on the acquisition of effective language and this in Horrified 4% 11% turn may affect emotional and cognitive development. There is some resistance to this, how- % Adjectives Ticked by Each Participant ever, due to concern that such testing, although possibly useful for parents to know a genetic cause to their child’s deafness, Figure 11. Therefore, careful consid- participants who have either a deaf parent or a deaf child. Source: From the eration of the impact of this should be given before genetic test- Journal of Genetic Counseling. Attitudes of deaf people and their families towards issues surrounding genetics 169 Research looking at the attitudes of deaf adults towards the on Deaf issues for Deaf people (55,56). There was the theoretical possibility that audiological testing offered as a useful way of diagnosing deaf- they may choose to have a termination for a hearing foetus. Another study look- same authors conducted a much larger study documenting the ing at the attitudes of deaf, hard-of-hearing, and hearing views of 644 deaf individuals, 143 hard-of-hearing individuals participants also showed that most agreed that newborn genetic and 527 hearing individuals with either a deaf parent or a child testing for deafness was appropriate (20). From this study, 49% hearing participants with a fam- ple alike appear to agree that the earlier the diagnosis of deaf- ily history of deafness, 39% hard-of-hearing and deafened ness, the better the outcome for the deaf child. From those interested in prenatal testing for deafness, 16% hearing, 11% hard-of-hearing and deafened, and 5% deaf participants said they would do so Attitudes towards genetic testing because they would have a termination if it were to be shown that the foetus was deaf. For the participants who said for deafness from the general they would choose this option, it is possible that they may public with no knowledge and have had such a negative experience of living with a hearing loss in themselves or their family, perhaps observing that experience of deafness deafness created isolation or even discrimination, that they did not want to take the risk of passing on deafness to their Ryan et al. This could be seen as reassuring ity had no personal experience of deafness either in themselves to members of the Deaf community in that most would not wish or in their relatives. Respondents indicated that the vast major- to end the pregnancy if the test indicated the baby was likely to ity were interested in carrier and prenatal testing and if found be deaf. This study is interesting as it places a value of looked at 96 hearing parents of deaf children ascertained in a what deafness means for people who do not have a family his- hospital setting. It is very likely that such a population screening pro- deafened, and 37 hearing individuals from a number of different gramme for deafness will be rigorously rejected by members of sources, including support groups as well as medical and educa- the worldwide Deaf community. The results were classiﬁed into those who iden- tiﬁed with the Deaf community, those who identiﬁed primarily with the Hearing World (including hearing and some deaf par- ticipants), and those who identiﬁed with both communities. Attitudes towards genetic testing The data showed that 23% participants who identiﬁed more for deafness from deaf people and with Deaf community were interested in prenatal diagnosis for deafness, compared to 47% of participants who identiﬁed more their families with the hearing world. With regards to attitudes towards ter- mination, approximately 8% of participants who identiﬁed with The author and colleagues documented the views of 87 Deaf the hearing world said they would consider having this if the participants ascertained from delegates attending a conference foetus was deaf but none of those who identiﬁed with the Deaf 170 Current management community said they would (21). Such people tend to perceive deafness as participants, three (2%) did say they would consider having a burden or disadvantage, and one they were inclined to view as prenatal diagnosis with selective termination of a hearing foe- a struggle to live with. Despite the negative picture created about tus, since they preferred to have deaf children (39,40). Culturally reaction is somewhat extreme, and it is difﬁcult to say whether, Deaf participants are particularly optimistic about their situation in reality, anyone would choose such a course of action. How- and feel that being deaf is not a disability and also not something ever, what this does demonstrate is the extent of the feelings of that genetic technology needs to interfere with. This shows that Deaf cultural solidarity that some Deaf people have, and also deafness is not a condition that is clearly detrimental. Indeed to be hearing in this instance would be a disad- of deafness, for example, by population carrier screening, vantage. This ﬁts in with previous literature already genetic testing added onto the Newborn Hearing Screening documented that shows some deaf parents prefer to have deaf Programme or mass-scale availability of prenatal testing for children (14,18,39,40,55,56). All such people are directly affected by such programmes and have valuable insight to offer about the potential impact of this. Summary proﬁle of parents Appropriate and effective clinical services for deaf people can be developed as long as health professionals take the time interested in prenatal testing to learn about the diversity of cultural attitudes held by differ- for deafness ent people affected by deafness (66). Genetic counselling ser- vices require a specialist knowledge of deafness, Deaf culture, The author has also documented the attitudes of parents of deaf and the role that genetics has played within history (67). It is children towards many different aspects relating to the deafness also imperative that communication and language differences in the family (11). Training in Deaf Awareness would be valuable ﬁle of the type of person who may choose to have prenatal for any health professional wanting to work in this area. In summary, deaf parents of deaf children who were interested in prenatal diagnosis for deafness (because they wanted to avoid passing deafness on) were more Acknowledgements likely to prefer to have hearing children, see their deaf children as disadvantaged, feel an actual burden of having a child who is I would like to acknowledge the input of Prof Jenny Hewison deaf, and want a cure for deafness in their child. Even though it is ents interested in prenatal diagnosis for deafness were more nearly 10 years since we worked together I am still inﬂuenced likely to consider termination for deafness as acceptable, to ﬁnd by their wisdom. For example, if parents were able to see their child as ease: a British Study of families attending a genetic counseling ser- advantaged or less of a burden, or if they felt that communica- vice. Attitudes of deaf people and their families towards issues surrounding genetics 171 3. Aetiologic diagnosis in hearing-impaired children - chological Implications of the New Human Genetics. Parents’ attitudes towards genetic testing and the gene mutations—molecular and audiological ﬁndings. Aetiology of bilateral sensorineural hearing impairment Acad Sci 1991; 630:236–239. Opposition from deaf groups to the cochlear born Hearing Screening Programme, London, 3rd Sept, 2002. Am J Hum Genet “Delivering genetic information sensitively across culture” Nurs 1998; 63:1175–1180. More recently, Zoll (7) has suggested that genetic language disorders A communication disorder is an inability to understand and/or may be linked to a gene localised at 7q31.