P121 The effect of training about nebuliser cleaning and disinfection on the knowledge levels and practises of the caregivers of patients with cystic fibrosis

ABSTRACT Objective: Home nebulizers are routinely used in the treatment of patients with cystic fibrosis (CF). This study aims to evaluate the contamination of nebulizers used for CF patients, that are chronically colonized by Pseudomonas aeruginosa, and the association of nebulizer contamination with cleaning, decontamination and drying practices. Methods: A cross-sectional, observational, multicenter study was conducted in seven CF reference centers in Brazil to obtain data from medical records, structured interviews with patients/caregivers were performed, and nebulizer’s parts (interface and cup) were collected for microbiological culture. Results: overall, 77 CF patients were included. The frequency of nebulizer contamination was 71.6%. Candida spp. (52.9%), Stenotrophomonas maltophilia (11.9%), non-mucoid P. aeruginosa (4.8%), Staphylococcus aureus (4.8%) and Burkholderia cepacia complex (2.4%) were the most common isolated pathogens. The frequency of nebulizers’ hygiene was 97.4%, and 70.3% of patients reported cleaning, disinfection and drying the nebulizers. The use of tap water in cleaning method and outdoor drying of the parts significantly increased (9.10 times) the chance of nebulizers’ contamination. Conclusion: Despite the high frequency hygiene of the nebulizers reported, the cleaning and disinfection methods used were often inadequate. A significant proportion of nebulizers was contaminated with potentially pathogenic microorganisms for CF patients. These findings support the need to include patients/caregivers in educational programs and / or new strategies for delivering inhaled antibiotics.

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Nebulizer cleaning and disinfection practices in families with cystic fibrosis: The relationship between attitudes, practice and microbe colonization

Journal of Cystic Fibrosis ◽

10.1016/j.jcf.2019.05.008 ◽

2019 ◽

Vol 18 (6) ◽

pp. 823-828 ◽

Cited By ~ 3

Author(s):

Thomas S. Murray ◽

Timothy K. O'Rourke ◽

Richard Feinn ◽

Ginny Drapeau ◽

Melanie S. Collins

Keyword(s):

Cystic Fibrosis ◽

Cleaning And Disinfection ◽

The Relationship

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Tobramycin inhalation powder for the treatment of pulmonary Pseudomonas aeruginosa infection in patients with cystic fibrosis: a review based on clinical evidence

Therapeutic Advances in Respiratory Disease ◽

10.1177/1753465817691239 ◽

2017 ◽

Vol 11 (5) ◽

pp. 193-209 ◽

Cited By ~ 15

Author(s):

Kamal Hamed ◽

Laurie Debonnett

Keyword(s):

Cystic Fibrosis ◽

Pseudomonas Aeruginosa ◽

Ease Of Use ◽

Efficacy And Safety ◽

Safety Studies ◽

Pseudomonas Aeruginosa Infection ◽

Cleaning And Disinfection ◽

Inhalation Powder

Chronic airway infection with Pseudomonas aeruginosa is a major cause of increased morbidity and mortality in patients with cystic fibrosis (CF). The development and widespread use of nebulized antibacterial therapies, including tobramycin inhalation solution (TIS), has led to improvements in lung function and quality of life. However, the use of nebulizers is associated with various challenges, including extended administration times and the need for frequent device cleaning and disinfection. Multiple therapies are required for patients with CF, which poses a considerable burden to patients, and adherence to the recommended treatments remains a challenge. Tobramycin inhalation powder (TIP), delivered via the T-326 Inhaler, has been shown to have similar clinical efficacy and safety as compared to TIS, with improved patient convenience, satisfaction, and treatment adherence. Long-term safety studies have shown that TIP was well tolerated with no unexpected adverse events in patients with CF. This review of the TIP pivotal and postmarketing studies reinforces the well-established efficacy and safety profile of TIP and its ease of use.

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Effect that an educational program for cystic fibrosis patients and caregivers has on the contamination of home nebulizers

Jornal Brasileiro de Pneumologia ◽

10.1590/s1806-37132014000200004 ◽

2014 ◽

Vol 40 (2) ◽

pp. 119-127 ◽

Cited By ~ 11

Author(s):

Adriana Della Zuana ◽

Doroti de Oliveira Garcia ◽

Regina Célia Turola Passos Juliani ◽

Luiz Vicente Ribeiro Ferreira da Silva Filho

Keyword(s):

Cystic Fibrosis ◽

Educational Intervention ◽

Educational Program ◽

Positive Impact ◽

Biochemical Tests ◽

Patient Age ◽

Selective Media ◽

Sterile Saline ◽

Patient Âgé ◽

Cleaning And Disinfection

OBJECTIVE: To describe the pathogens found in home nebulizers and in respiratory samples of cystic fibrosis (CF) patients, and to evaluate the effect that a standardized instruction regarding cleaning and disinfection of nebulizers has on the frequency of nebulizer contamination. METHODS: We included 40 CF patients (22 males), all of whom used the same model of nebulizer. The median patient age was 11.2 ± 3.74 years. We collected samples from the nebulizer mouthpiece and cup, using a sterile swab moistened with sterile saline. Respiratory samples were collected by asking patients to expectorate into a sterile container or with oropharyngeal swabs after cough stimulation. Cultures were performed on selective media, and bacteria were identified by classical biochemical tests. Patients received oral and written instructions regarding the cleaning and disinfection of nebulizers. All determinations were repeated an average of two months later. RESULTS: Contamination of the nebulizer (any part) was detected in 23 cases (57.5%). The nebulizer mouthpiece and cup were found to be contaminated in 16 (40.0%) and 19 (47.5%), respectively. After the standardized instruction had been given, there was a significant decrease in the proportion of contaminated nebulizers (43.5%). CONCLUSIONS: In our sample of CF patients, nebulizer contamination was common, indicating the need for improvement in patient practices regarding the cleaning and disinfection of their nebulizers. A one-time educational intervention could have a significant positive impact.

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Nebuliser cleaning and disinfection practice in the home among patients with cystic fibrosis

Journal of Infection Prevention ◽

10.1177/1757177419855603 ◽

2019 ◽

Vol 21 (1) ◽

pp. 14-22 ◽

Cited By ~ 2

Author(s):

Mary MacFarlane ◽

Lesley Carson ◽

Amanda Crossan ◽

Jane Bell ◽

John E Moore ◽

...

Keyword(s):

Cystic Fibrosis ◽

Home Environment ◽

Home Visit ◽

Prevention Measures ◽

Hygiene Practices ◽

Pharmaceutical Manufacturers ◽

If Current ◽

Control And Prevention ◽

Cleaning And Disinfection ◽

Infection Control And Prevention

Background: Nebulised delivery of different classes of drugs is of fundamental importance in therapeutic regimens relating to both the management of disease progression in cystic fibrosis disease and its associated complications. The aim of this study was to determine if current nebuliser hygiene practices in the home environment by paediatric and adult cystic fibrosis populations are appropriate to ensure appropriate infection control and prevention measures have been addressed. Methods: An Audit Questionnaire Study was completed with adult cystic fibrosis patients ( n=20) or with parents of cystic fibrosis children ( n=24), through a healthcare professional interview on a one-to-one basis, during either a home visit or during patient/parent attendance at cystic fibrosis clinic. Results: Hygienic practices relating to nebuliser care varied, with paediatric carers more likely to clean and disinfect their devices. This study suggests there is much variation and confusion with regard to how to clean and disinfect nebulisers, as well as who is responsible for delivering this advice. Conclusion: The adult cystic fibrosis community in particular needs to be educated on practicalities associated with nebuliser hygiene and the reasons why this is important. Furthermore, to date there is a lack of a universally recommended guideline suitable for all types of cystic fibrosis nebulisers that all relevant pharmaceutical manufacturers advocate.

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Pregnancy in cystic fibrosis of the pancreas

JAMA ◽

10.1001/jama.195.12.993 ◽

1966 ◽

Vol 195 (12) ◽

pp. 993-1000 ◽

Cited By ~ 9

Author(s):

R. J. Grand

Keyword(s):

Cystic Fibrosis

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Freeze-Fracture Examination of Tight Junctions of Human Eccrine Sweat Glands

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600002786 ◽

1980 ◽

Vol 38 ◽

pp. 634-635

Author(s):

J. V. Briggman ◽

J. Bigelow ◽

H. Bank ◽

S. S. Spicer

Keyword(s):

Cystic Fibrosis ◽

Freeze Fracture ◽

Sweat Glands ◽

Hypertonic Solution ◽

Dark Cells ◽

Clear Cells ◽

Junctional Complexes ◽

Secretory Coil ◽

Eccrine Sweat Glands ◽

Eccrine Sweat

The prevalence of strands shown by freeze-fracture in the zonula occludens of junctional complexes is thought to correspond closely with the transepi-thelial electrical resistance and with the tightness of the junction and its obstruction to paracellular flow.1 The complexity of the network of junc¬tional complex strands does not appear invariably related to the degree of tightness of the junction, however, as rabbit ileal junctions have a complex network of strands and are permeable to lanthanum. In human eccrine sweat glands the extent of paracellular relative to transcellular flow remains unknown, both for secretion of the isotonic precursor fluid by the coil and for resorption of a hypertonic solution by the duct. The studies reported here undertook, therefore, to determine with the freeze-fracture technique the complexity of the network of ridges in the junctional complexes between cells in the secretory coil and the sweat ducts. Glands from a patient with cystic fibrosis were also examined because an alteration in junctional strands could underlie the decreased Na+ resorption by sweat ducts in this disease. Freeze-fracture replicas were prepared by standard procedures on isolated coil and duct segments of human sweat glands. Junctional complexes between clear cells, between dark cells and between clear and dark cells on the main lumen, and between clear cells on intercellular canaliculi of the coil con¬tained abundant anastomosing closely spaced strands averaging 6.4 + 0.7 (mean + SE) and 9.0 +0.5 (Fig. 1) per complex, respectively. Thus, the junctions in the intercellular canaliculi of the coil appeared comparable in complexity to those of tight epithlia. Occasional junctions exhibited, in addition, 2 to 5 widely spaced anastomosing strands in a very close network basal to the compact network. The fewer junctional complexes observed thus far between the superficial duct cells consisted on the average of 6 strands arranged in a close network and 1 to 4 underlying strands that lay widely separated from one another (Fig. 2). The duct epitelium would, thus, be judged slightly more "leaky" than the coil. Infrequent junctional complexes observed to date in the secretory coil segment of a cystic fibrosis specimen disclosed rela¬tively few closely crowded strands.

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