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Disinfection: gaps between recommended and actual practice

Keah KC, Jegathesan M, Tan SC, Chan SH, Chee OM, Cheong YM, et al.

Southeast Asian J. Trop. Med. Public Health, 1995 Dec;26(4):795-8.
PMID: 9139397

Basic practices on disinfection was surveyed in 6 hospitals using an observation and interview checklist. Two surveys were done, one pre-(first survey) and one post-intervention (second survey). The disinfection and sterilization policy of the Ministry of Health was not available in 66 (70.2%) and 12 (13%) of the units in the first and second survey respectively. In the second survey, staff in all the units washed disinfectant containers before refilling compared with 41.5% of the units in the first survey. Dilution of disinfectants not recommended was found to be used in the first survey. Storing cleaned and sterile items in disinfectants, using disinfectant as a substitute for sterilization of autoclavable items and not decontaminating spillages were some of the wrong practices observed. Considerable improvements were made in the second survey. Improper usage of disinfectants was also indicated by failure of the in-use test. Rate of failure of disinfectants in-use decreased from 11.6% in the first survey to 5.0% in the second survey. To ensure proper disinfection practices, a comprehensive training program on disinfection is required for nurses and attendants.

Matched MeSH terms: Infection Control/standards
Fulltext Management of accidental laboratory exposure to Burkholderia pseudomallei and B. mallei

Peacock SJ, Schweizer HP, Dance DA, Smith TL, Gee JE, Wuthiekanun V, et al.

Emerg Infect Dis, 2008 Jul;14(7):e2.
PMID: 18598617 DOI: 10.3201/eid1407.071501

The gram-negative bacillus Burkholderia pseudomallei is a saprophyte and the cause of melioidosis. Natural infection is most commonly reported in northeast Thailand and northern Australia but also occurs in other parts of Asia, South America, and the Caribbean. Melioidosis develops after bacterial inoculation or inhalation, often in relation to occupational exposure in areas where the disease is endemic. Clinical infection has a peak incidence between the fourth and fifth decades; with diabetes mellitus, excess alcohol consumption, chronic renal failure, and chronic lung disease acting as independent risk factors. Most affected adults ( approximately 80%) in northeast Thailand, northern Australia, and Malaysia have >/=1 underlying diseases. Symptoms of melioidosis may be exhibited many years after exposure, commonly in association with an alteration in immune status. Manifestations of disease are extremely broad ranging and form a spectrum from rapidly life-threatening sepsis to chronic low-grade infection. A common clinical picture is that of sepsis associated with bacterial dissemination to distant sites, frequently causing concomitant pneumonia and liver and splenic abscesses. Infection may also occur in bone, joints, skin, soft tissue, or the prostate. The clinical symptoms of melioidosis mimic those of many other diseases; thus, differentiating between melioidosis and other acute and chronic bacterial infections, including tuberculosis, is often impossible. Confirmation of the diagnosis relies on good practices for specimen collection, laboratory culture, and isolation of B. pseudomallei. The overall mortality rate of infected persons is 50% in northeast Thailand (35% in children) and 19% in Australia.

Matched MeSH terms: Infection Control/standards*
Knowledge of blood-borne infectious diseases and the practice of universal precautions amongst health-care workers in a tertiary hospital in Malaysia

Hamid MZ, Aziz NA, Anita AR, Norlijah O

Southeast Asian J. Trop. Med. Public Health, 2010 Sep;41(5):1192-9.
PMID: 21073041

This study aimed to assess the knowledge of blood-borne diseases transmitted through needle stick injuries amongst health-care workers in a tertiary teaching hospital. We also aimed to assess the practices of universal precautions amongst these workers and its correlation with the facts. We carried out a cross-sectional study from January to July 2008 involving various levels of health-care workers in Serdang Hospital, Selangor, Malaysia. A self-administered questionnaire assessing knowledge of blood-borne diseases and universal precautions, and actual practice of universal precautions was used. Two hundred fifteen respondents participated in this study; 63.3% were staff nurses. The mean knowledge score was 31.84 (SD 4.30) and the mean universal practice score was 9.0 (SD 2.1). There was a small, positive correlation between knowledge and actual practice of universal precautions (r = 0.300, n = 206, p < 0.001) amongst the cohort studied. Factors such as age and years of experience did not contribute towards acquisition of knowledge about blood-borne illnesses or the practice of universal precautions.

Matched MeSH terms: Infection Control/standards
Hand decontamination practices and the appropriate use of gloves in two adult intensive care units in Malaysia

Katherason SG, Naing L, Jaalam K, Nik Mohamad NA, Bhojwani K, Harussani ND, et al.

J Infect Dev Ctries, 2010 Mar 08;4(2):118-23.
PMID: 20212345

BACKGROUND: Hand decontamination is a critical infection control practice in the prevention of nosocomial infection. This study was conducted to observe the hand hygiene practices of nurses and doctors in two intensive care units (ICUs) in Malaysia.
METHODOLOGY: Staff members were observed during patient contacts, and their hand washing techniques and hand hygiene practices were monitored. Five contact periods were observed for staff members while they cared for their assigned patients. Hand hygiene practices before and after patient contacts were categorized as clean uncontaminated, clean recontaminated, new gloves, and unchanged contaminated gloves. Compliance to hand-washing steps and time taken for hand washing were analyzed. Appropriate use of gloves based on CDC criteria also was assessed.
RESULTS: Compliance to hand hygiene practices was 70% before each patient contact. Staff members did not completely adhere to the hand-washing steps. The average time taken to wash hands was 20 seconds, and the necessary steps (rubbing palm over dorsum; rubbing fingers interlaced, and rotational rubbing of thumbs) were practiced minimally by all staff. Hand washing protocol was generally followed by all staff (100%). Alcohol hand rubs were available but were used moderately (60%); when used, staff members did not wait for the alcohol to dry. Only 4% of staff changed contaminated gloves between patients.
CONCLUSIONS: Hand hygiene compliance by ICU staff members needs to be improved. Improving adherence to correct hand hygiene techniques will require effective education programs and behavioral modification techniques. Moreover, hand hygiene guidelines must be incorporated into new staff orientation programs and the continuing education curriculum in the two hospitals studied.

Matched MeSH terms: Infection Control/standards
Transcatheter aortic valve implantation during the COVID-19 pandemic: Clinical expert opinion and consensus statement for Asia

Tay EL, Hayashida K, Chen M, Yin WH, Park DW, Seth A, et al.

J Card Surg, 2020 Sep;35(9):2142-2146.
PMID: 32720374 DOI: 10.1111/jocs.14722

OBJECTIVES: The impact of the COVID-19 pandemic on the treatment of patient with aortic valve stenosis is unknown and there is uncertainty on the optimal strategies in managing these patients.
METHODS: This study is supported and endorsed by the Asia Pacific Society of Interventional Cardiology. Due to the inability to have face to face discussions during the pandemic, an online survey was performed by inviting key opinion leaders (cardiac surgeon/interventional cardiologist/echocardiologist) in the field of transcatheter aortic valve implantation (TAVI) in Asia to participate. The answers to a series of questions pertaining to the impact of COVID-19 on TAVI were collected and analyzed. These led subsequently to an expert consensus recommendation on the conduct of TAVI during the pandemic.
RESULTS: The COVID-19 pandemic had resulted in a 25% (10-80) reduction of case volume and 53% of operators required triaging to manage their patients with severe aortic stenosis. The two most important parameters used to triage were symptoms and valve area. Periprocedural changes included the introduction of teleconsultation, preprocedure COVID-19 testing, optimization of protests, and catheterization laboratory set up. In addition, length of stay was reduced from a mean of 4.4 to 4 days.
CONCLUSION: The COVID-19 pandemic has impacted on the delivery of TAVI services to patients in Asia. This expert recommendation on best practices may be a useful guide to help TAVI teams during this period until a COVID-19 vaccine becomes widely available.

Matched MeSH terms: Infection Control/standards
Evaluation of the efficacy of antibacterial medical gloves in the ICU setting

Kahar Bador M, Rai V, Yusof MY, Kwong WK, Assadian O

J Hosp Infect, 2015 Jul;90(3):248-52.
PMID: 25982193 DOI: 10.1016/j.jhin.2015.03.009

Inappropriate use of medical gloves may support microbial transmission. New strategies could increase the safety of medical gloves without the risk of patient and surface contamination.

Matched MeSH terms: Infection Control/standards