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PubMed1997

Exposure to hepatitis B and C of tattooists in Victoria in 1984.

Although tattooing is recognized as a risk factor for transmission of hepatitis C, the efficiency with which transmission occurs is unknown. Sera stored from a serosurvey of tattooists undertaken in 1984 to test for human immunodeficiency virus (HIV) provided the opportunity to determine the prevalence of serological markers of hepatitis B virus (HBV) and hepatitis C virus (HCV) in tattooists at that time. The stored sera had been obtained from five unregistered and 36 of 37 (97%) of the registered tattooists operating in 1984. Serological status for hepatitis B (hepatitis B surface antigen (HBsAg), antibody to hepatitis B surface antigen (HBsAb) and antibody to hepatitis B core antigen (HBcAb) in standard assays) or hepatitis C (HCV antibody reactivity in second and third generation tests, confirmed by recombinant immunoblot assay) was determined. No sera was HIV positive or HBsAg positive. Of 35 specimens tested for HCV specific antibody, only two (5.6%) were positive despite markers of HBV in 48.6% of the same sera. As acute HBV infection was common amongst tattooists prior to 1984, it is clear that hepatitis B vaccination would be of benefit to this group. Despite frequent needlestick injuries reported by tattooists at the time, the low seroprevalence of HCV in this group suggests that HCV may not be transmitted efficiently by intradermal inoculation using solid-bore tattooing needles.

AIDS-Related Opportunistic Infections↗
PubMed2005

Prevalence of, and risk factors for, hepatitis C virus infection among recent initiates to injecting in London and Glasgow: cross sectional analysis.

Our aim was to compare the prevalence of antibody to hepatitis C virus (anti-HCV) among recently initiated injecting drug users (IDUs) in London and Glasgow, and to identify risk factors which could explain differences in prevalence between the cities. Complementary studies of community recruited IDUs who had initiated injection drug use since 1996 were conducted during 2001-2002. Data on HCV risk behaviours were gathered using structured questionnaires with identical core questions and respondents were asked to provide an oral fluid specimen which was tested anonymously for anti-HCV but was linked to the questionnaire. Sensitivities of the anti-HCV assays for oral fluid were 92-96%. Prevalence of anti-HCV was 35% (122/354) in London and 57% (207/366) in Glasgow (P < 0.001). Multifactorially, factors significantly associated with raised odds of anti-HCV positivity were increasing length of injecting career, daily injection, polydrug use, having had a needlestick injury, and having served a prison sentence. In addition lower odds of anti-HCV positivity were associated with non-injection use of crack cocaine and recruitment from drug agencies. After adjustment for these factors, the increased odds of anti-HCV associated with being a Glasgow IDU were diminished but remained significant. HCV continues to be transmitted among the IDU population of both cities at high rates despite the availability of syringe exchange and methadone maintenance. Effectiveness of harm reduction interventions may be compromised by inadequate coverage and failure to reduce sufficiently the frequency of sharing different types of injecting equipment, as well as the high background prevalence of HCV, and its high infectivity. Comprehensive action is urgently required to reduce the incidence of HCV among injectors.

Adult↗
PubMed1990

HIV and measures to control infection in general practice.

OBJECTIVE: To assess the impact of HIV on procedures to control infection in general practices. DESIGN: A postal questionnaire survey. SETTING: General practices throughout Britain. SUBJECTS: 5359 General practitioners, 3429 (63.9%) of whom returned the questionnaire. MAIN OUTCOME MEASURE: Response to questionnaire on knowledge about HIV and policies for controlling infection. RESULTS: Most doctors (2018) had started to wear gloves when taking blood. Almost half (1510) had not resheathed needles previously but a further 776 had adopted this policy because of HIV. Over half of the doctors did not know or were unsure about the risk of infection from needlestick injuries, and 1759 had no practice policy for controlling infection. CONCLUSIONS: Many doctors are uncertain about measures to control infection in general practice. More information and advice are needed to help doctors develop policies to protect patients and staff.

Acquired Immunodeficiency Syndrome↗
PubMed1990

Operating practices of and precautions taken by orthopaedic surgeons to avoid infection with HIV and hepatitis B virus during surgery.

OBJECTIVE: To assess the precautions being taken by orthopaedic surgeons to avoid becoming infected with HIV or hepatitis B virus by their patients during surgery. DESIGN: Pilot study of 50 surgeons selected at random followed by a postal questionnaire completed anonymously. SUBJECTS: All 1220 fellows and associates of the British Orthopaedic Association working in the United Kingdom. RESULTS: 800 (67%) Questionnaires were returned. 511 Surgeons has sustained a needlestick injury or had got body fluid in their eye within the past month despite 430 regularly wearing eye protection during major surgery. Seven had definitely and four possibly been infected with hepatitis B virus by a patient while operating, and 582 had been immunised against hepatitis B. Only 75 surgeons were satisfied with the present guidelines on testing patients for HIV antibodies. CONCLUSIONS: Although most surgeons who replied took some precautions when operating, most still exposed themselves to considerable risk from patients not known to be infected with HIV or hepatitis B virus.

AIDS Serodiagnosis↗
PubMed1988

Cleaning and disinfection of equipment for gastrointestinal flexible endoscopy: interim recommendations of a Working Party of the British Society of Gastroenterology.

1. All patients undergoing gastrointestinal endoscopy must be considered 'at risk' for HIV and appropriate cleaning/disinfection measures taken for endoscopes and accessories. 2. Thorough manual cleaning with detergent, of the instrument and its channels is the most important part of the cleaning/disinfection procedure. Without this, blood, mucus and organic material will prevent adequate penetration of disinfectant for inactivation of bacteria and viruses. 3. Aldehyde preparations (2% activated glutaraldehyde and related products) are the recommended first line antibacterial and antiviral disinfectant. A four minute soak is recommended as sufficient for inactivation of vegetative bacteria and viruses (including HIV and HBV). 4. Quaternary ammonium detergents (8% Dettox for two minutes for bacterial disinfection), followed by exposure of the endoscope shaft and channels to ethyl alcohol (70% for four minutes for viral inactivation), is an acceptable second-line disinfectant routine where staff sensitisation prevents the use of an aldehyde disinfectant. 5. Accessories, including mouthguards and cleaning brushes, require similarly careful cleaning/disinfection, before and after each use. Disposable products (especially injection needles) may be used and appropriate items can be sterilised by autoclaving and kept in sterile packs. 6. Closed circuit endoscope washing machines have advantages in maintaining standards and avoiding staff sensitisation to disinfectants. Improved ventilation including exhaust extraction facilities may be required. 7. Endoscopy staff should receive HBV vaccination, wear gloves and appropriate protective garments, cover wounds or abrasions and avoid needlestick injuries (including spiked forceps, etc). 8. Known HIV-infected or AIDS patients are managed as immunosuppressed, and require protection from atypical mycobacteria/cryptosporidia etc, by one hour aldehyde disinfection of endoscopic equipment before and after the procedure. A dedicated instrument is not required. 9. Increased funding is necessary for capital purchases of GI endoscopic equipment, including extra and immersible endoscopes with additional accessories to allow for safe practice. 10. Greater numbers of trained GI assistants are needed to ensure that cleaning/disinfection recommendations and safety precautions are followed, both during routine lists and emergency endoscopic procedures. 11. These recommendations are based on expert interpretation of current data on infectivity and disinfection; they may require future modification.

Acquired Immunodeficiency Syndrome↗
PubMed1993

Safe working practices and HIV infection: knowledge, attitudes, perception of risk, and policy in hospital.

OBJECTIVES--To assess the knowledge, attitudes, and perceptions of risk of occupational HIV transmission in hospital in relation to existing guidelines. DESIGN--Cross sectional anonymous questionnaire survey of all occupational groups. SETTING--One large inner city teaching hospital. SUBJECTS--All 1530 staff working in the hospital in October 1991 and 22 managers. MAIN MEASURES--Knowledge of safe working practices and hospital guidelines; attitudes towards patients with AIDS; perception of risk of occupational transmission of HIV; availability of guidelines. RESULTS--The response rate in the questionnaire survey was 63% (958/1530). Although staff across all occupational groups knew of the potential risk of infection from needlestick injury (98%, 904/922), significantly more non-clinical staff (ambulance, catering, and domestic staff) than clinical staff (doctors, nurses, and paramedics) thought HIV could be transmitted by giving blood (38%, 153/404 v 12%, 40/346; chi 2 = 66.1 p < 0.001); one in ten clinical staff believed this. Except for midwives, half of staff in most occupational groups and 19% (17/91) of doctors and 22% (28/125) of nurses thought gloves should be worn in all contacts with people with AIDS. Most staff (62%, 593/958), including 38% (36/94) of doctors and 52% (67/128) of nurses thought patients should be routinely tested on admission, 17% of doctors and 19% of nurses thought they should be isolated in hospital. One in three staff perceived themselves at risk of HIV. Midwives, nurses, and theatre technicians were most aware of guidelines for safe working compared with only half of doctors, ambulance, and paramedical staff and no incinerator staff. CONCLUSIONS--Policy guidelines for safe working practices for patients with HIV infection and AIDS need to be disseminated across all occupational groups to reduce negative staff attitudes, improve knowledge of occupational transmission, establish an appropriate perception of risk, and create a supportive and caring hospital environment for people with HIV. IMPLICATIONS--Managers need to disseminate policy guidelines and information to all staff on an ongoing basis.

Acquired Immunodeficiency Syndrome↗
PubMed1997

Lack of transmission of hepatitis C in household contacts of children with homozygous beta-thalassaemia.

Forty-eight household contacts of 25 children with homozygous beta-thalassaemia and chronic hepatitis C (index cases) were evaluated for antibodies against hepatitis C virus (HCV) and increased transaminase values in the blood. The mean age +/- SD of the household contacts was 36.4 +/- 17.0 years (range 5-67) and 20 of them were males. All thalassaemic patients (age 14.3 +/- 3.0 years, range 8-19) were positive for anti-HCV antibodies by repeated determinations. HCV-RNA was detected in the blood of 22 of 23 patients tested by polymerase chain reaction. Liver biopsies were performed in 18 patients and showed chronic active hepatitis in 14 and chronic persistent hepatitis in 4. The mean duration of contact between the index cases and the household contacts while the index cases were anti-HCV positive was 45.3 +/- 10.2 months (range 17-57). None of the household contacts was found to be positive for anti-HCV antibodies nor did they have elevated transaminases in the two examinations performed within an interval of about 2 years. Among the HCV-negative household contacts are included 14 who mentioned needlestick injuries with needles used by the index cases.

Adolescent↗
PubMed2005

Rapid assessment of injection practices in Cambodia, 2002.

BACKGROUND: Injection overuse and unsafe injection practices facilitate transmission of bloodborne pathogens such as hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV). Anecdotal reports of unsafe and unnecessary therapeutic injections and the high prevalence of HBV (8.0%), HCV (6.5%), and HIV (2.6%) infection in Cambodia have raised concern over injection safety. To estimate the magnitude and patterns of such practices, a rapid assessment of injection practices was conducted. METHODS: We surveyed a random sample of the general population in Takeo Province and convenience samples of prescribers and injection providers in Takeo Province and Phnom Penh city regarding injection-related knowledge, attitudes, and practices. Injection providers were observed administering injections. Data were collected using standardized methods adapted from the World Health Organization safe injection assessment guidelines. RESULTS: Among the general population sample (n = 500), the overall injection rate was 5.9 injections per person-year, with 40% of participants reporting receipt of >or= 1 injection during the previous 6 months. Therapeutic injections, intravenous infusions, and immunizations accounted for 74%, 16% and 10% of injections, respectively. The majority (>85%) of injections were received in the private sector. All participants who recalled their last injection reported the injection was administered with a newly opened disposable syringe and needle. Prescribers (n = 60) reported that 47% of the total prescriptions they wrote included a therapeutic injection or infusion. Among injection providers (n = 60), 58% recapped the syringe after use and 13% did not dispose of the used needle and syringe appropriately. Over half (53%) of the providers reported a needlestick injury during the previous 12 months. Ninety percent of prescribers and injection providers were aware HBV, HCV, and HIV were transmitted through unsafe injection practices. Knowledge of HIV transmission through "dirty" syringes among the general population was also high (95%). CONCLUSION: Our data suggest that Cambodia has one of the world's highest rates of overall injection usage, despite general awareness of associated infection risks. Although there was little evidence of reuse of needles and syringes, support is needed for interventions to address injection overuse, healthcare worker safety and appropriate waste disposal.

Adolescent↗
PubMed2004

Mental health status, shift work, and occupational accidents among hospital nurses in Japan.

A questionnaire survey was conducted with questions from the 12-item General Health Questionnaire, among others, targeting 4,407 nurses in 8 general hospitals in Japan, in the hope of improving the work environment of nurses and to provide data that will allow a discussion of the measures necessary for preventing medical errors, thus improving occupational health. For each type of accident, the percentage of those who had made medical errors was significantly higher for the "mentally in poor health" group than for the "mentally in good health" group (p<0.0001). The percentage of nurses in the "mentally in good health" and "mentally in poor health" groups who had experienced occupational accidents over the past 12 months (i.e., whether they were "with errors" or "without errors") was calculated for each of the following four types of medical accident: (1) drug-administration errors, (2) incorrect operation of medical equipment, (3) errors in patient identification, and (4) needlestick injuries. For each type of accident, the percentage of those who had made medical errors was significantly higher for the "mentally in poor health" group than for the "mentally in good health" group (p<0.0001). Multiple logistic regression analyses revealed significant associations between experience of medical errors in the past 12 months and being mentally in poor health, with night or irregular shift work, and age.

Accidents, Occupational↗
PubMed1992

[Risk of infections by the human immunodeficiency virus (HIV) among health professionals].

To investigate the occupational risk of infection by HIV among health professionals, 36 cases of occupational accidents involving exposure to material potentially infected with HIV, reported at a Brazilian General Hospital (HCFMRP), were studied. Of the injured workers 75% were female and 25% male (ranging from 23 to 49 years old) and just one of them had high-risk behavior of HIV infection. Of these health professionals, 52.8% were nursing auxiliaries, 19.4%, nurses, 13.9%, nursing attendants, 5.5%, laboratory technicians, 2.8% surgery instrumentalist, 2.8% accountants and 2.8% nursing technicians. In 47.2% of cases the workers had a parenteral exposure to blood (needlestick injuries). The right hand and fingers were the body areas most effected. The serologic test to detect HIV antibodies by the ELISA method was required of all the workers. The results were negative and no seroconversion was registered during the one year follow-up period. The professionals were retested one month, 2 months, 6 months and one year after the exposure. In conclusion, the risk of infection by HIV among health professionals of HCFMRP seems to be very low. Continuing education should be provided for health care workers with a view to reinforcing the use of universal precaution, especially those to prevent injuries caused by needles or other sharp instruments.

Adult↗
PubMed1990

Survey of occupational exposure of waste industry workers to infectious waste in Washington State.

We surveyed 940 Washington state waste industry workers to evaluate occupational exposure to potentially infectious materials (response rate 47 percent). Only 26 percent were trained specifically to deal with safety hazards associated with medical waste. For the year preceding the survey, 50 percent of respondents reported having received cuts and scratches on the job, 22 percent reported direct contact with waste blood on their clothing or shoes, 8 percent had blood exposure on their skin, 3 percent blood exposure on their face or eyes, and 6 percent occupational hypodermic needlestick injuries (10 percent among waste collectors.

Humans↗
PubMed1997

Hospital nurses' occupational exposure to blood: prospective, retrospective, and institutional reports.

OBJECTIVES: This study examined nurses risk of exposure to blood resulting from injuries with needles and sharps, the methods of estimating those risks, and the factors affecting risks. METHODS: Nurses on 40 medical units in 20 hospitals in cities with a high incidence of AIDS were studied. Percutaneous injuries were documented for every shift during a 30-day period. These prospective reports were compared with retrospective and institutional reports. Factors affecting the likelihood of injuries were explored. RESULTS: Based on the prospective reports, the rate of injuries to staff nurses was 0.8 per nurse-year. Prospective and retrospective rates were similar, while institutional rates were significantly lower. Factors associated with increased injuries included recapping needles and temporary work assignments. Working in hospitals characterized by professional nurse practice models and taking precautions to avoid blood contact were associated with fewer injuries. CONCLUSIONS: Injuries from needlesticks are more common than institutional reports suggest and do not occur at random. Diminishing the frequency with which nurses recap needles, increasing precautions they take, reducing use of temporary nursing personnel, and implementing organizational changes may lower the odds of nurses being injured.

Acquired Immunodeficiency Syndrome↗
PubMed1996

Hepatitis C virus infection in health care workers referred to a hepatitis clinic.

OBJECTIVES: To assess method of acquisition, presence of liver disease, potential infectivity and the effect on work practices in health care workers with hepatitis C virus (HCV) infection referred to a hepatitis clinic. PATIENTS AND METHODS: All 33 health care workers referred to a hepatitis clinic for management of HCV infection because of a positive test for HCV (enzyme-linked immunosorbent assay) between 1 January 1990 and 31 December 1994 (comprising six medical practitioners, 18 nurses, two scientists and seven others) were retrospectively assessed for most likely method of infection, alanine aminotransferase levels, results of liver biopsy and measurement of HCV-RNA. RESULTS: 30 health care workers (12 men and 18 women; age range, 27-68 years) had HCV infection confirmed on further testing. Only seven were believed to have acquired their infection occupationally (one with documented needlestick injury). Twenty-eight patients had elevated alanine aminotransferase levels and, of 23 patients who underwent liver biopsy, one had cirrhosis and 12 had chronic hepatitis and fibrosis. Of the 24 health care workers with direct patient contact, four had retired, eight had stopped or modified their work practices and 12 continued to practise normally. CONCLUSIONS: Few health care workers with chronic HCV infection have acquired it occupationally. We recommend that guidelines be set up for institutional expert committees to advise health care workers with HCV infection about modifying their work practice.

Adult↗
PubMed2005

Randomised trial of intranasal versus intramuscular naloxone in prehospital treatment for suspected opioid overdose.

OBJECTIVE: To determine the effectiveness of intranasal (IN) naloxone compared with intramuscular (IM) naloxone for treatment of respiratory depression due to suspected opiate overdose in the prehospital setting. DESIGN: Prospective, randomised, unblinded trial of either 2 mg naloxone injected intramuscularly or 2 mg naloxone delivered intranasally with a mucosal atomiser. PARTICIPANTS AND SETTING: 155 patients (71 IM and 84 IN) requiring treatment for suspected opiate overdose and attended by paramedics of the Metropolitan Ambulance Service (MAS) and Rural Ambulance Victoria (RAV) in Victoria. MAIN OUTCOME MEASURES: Response time to regain a respiratory rate greater than 10 per minute. Secondary outcome measures were proportion of patients with respiratory rate greater than 10 per minute at 8 minutes and/or a GCS score over 11 at 8 minutes; proportion requiring rescue naloxone; rate of adverse events; proportion of the IN group for whom IN naloxone alone was sufficient treatment. RESULTS: The IM group had more rapid response than the IN group, and were more likely to have more than 10 spontaneous respirations per minute within 8 minutes (82% v 63%; P = 0.0173). There was no statistically significant difference between the IM and IN groups for needing rescue naloxone (13% [IM group] v 26% [IN group]; P = 0.0558). There were no major adverse events. For patients treated with IN naloxone, this was sufficient to reverse opiate toxicity in 74%. CONCLUSION: IN naloxone is effective in treating opiate-induced respiratory depression, but is not as effective as IM naloxone. IN delivery of naxolone could reduce the risk of needlestick injury to ambulance officers and, being relatively safe to make more widely available, could increase access to life-saving treatment in the community.

Administration, Intranasal↗
PubMed2001

Serious adverse events attributed to nevirapine regimens for postexposure prophylaxis after HIV exposures--worldwide, 1997-2000.

In September 2000, two instances of life-threatening hepatotoxicity were reported in health-care workers taking nevirapine (NVP) for postexposure prophylaxis (PEP) after occupational human immunodeficiency virus (HIV) exposure. In one case, a 43-year-old female health-care worker required liver transplantation after developing fulminant hepatitis and end-stage hepatic failure while taking NVP, zidovudine, and lamivudine as PEP following a needlestick injury (1). In the second case, a 38-year-old male physician was hospitalized with life-threatening fulminant hepatitis while taking NVP, zidovudine, and lamivudine as PEP following a mucous membrane exposure. To characterize NVP-associated PEP toxicity, CDC and the Food and Drug Administration (FDA) reviewed MedWatch reports of serious adverse events in persons taking NVP for PEP received by FDA (Figure 1). This report summarizes the results of that analysis and indicates that healthy persons taking abbreviated 4-week NVP regimens for PEP are at risk for serious adverse events. Clinicians should use recommended PEP guidelines and dosing instructions to reduce the risk for serious adverse events.

Adult↗
PubMedDate not supplied

[Phenomenon of occupational accidents of workers of IRCCS of Neurosciences].

On the basis of information collected from ten IRCCS, it has emerged altogether that the accident are not much frequent. Accident statistics indices from 1994 to 1998 were respectively: frequency rate 21.36, incidence rate 3.32, severity rate 0.24. In the "Neurology" Institutes we have above all needlestick injuries and cufs to the arms and hands. The workers most exposed are doctors, trained nurses, technicians. In the "Psychic" Institutes we have falling, impact, lifting and physical contact accidents. The injuries are contusions to legs and head. The most exposed workers are therapists and rehabilitation educators.

Academies and Institutes↗
PubMed2003

Considerations for implementing a new combination vaccine into managed care.

BACKGROUND: The control and elimination of several deadly childhood diseases are a result of extensive vaccination efforts made by pediatricians, family practitioners, public health providers, and health outreach systems. Managed care can assist this effort through facilitating the delivery of affordable quality healthcare to patients. OBJECTIVE: To describe the considerations made by managed care when implementing a new vaccine into practice. RESULTS: Managed care plans often assess the medical necessity, consumer acceptance, and pharmacoeconomic benefits of a vaccine when considering whether it can be implemented into practice. DTaP-HepB-IPV (Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Hepatitis B [Recombinant] and Inactivated Poliovirus Vaccine [Combined]), a new combination vaccine, has demonstrated similar immunogenicity and safety when compared with separately administered component vaccines. Use of this combination vaccine will help to simplify the current immunization schedule, and therefore decrease the number of injections infants receive in the first year of life, favorably influencing consumer perception of this new vaccine. A reduction in the number of office visits as a result of fewer injections and improved vaccine compliance may result in a positive pharmacoeconomic impact on parents, physicians, and payers. Reduced administration fees, fewer needed syringes, and decreased risk of needlestick injury resulting from the use of combination vaccines all may have a positive impact on acceptance of these vaccines by managed care organizations. CONCLUSION: DTaP-HepB-IPV is expected to meet the tests of medical appropriateness, consumer acceptance, and pharmacoeconomic reasonableness, thereby fulfilling the value proposition of a new combination vaccine for managed healthcare plans.

Diphtheria-Tetanus-acellular Pertussis Vaccines↗