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Herráiz Soria E, Alou L, Martin-Villa C, Becerro-de-Bengoa-Vallejo R, Losa-Iglesias M, Sevillano D. Alcohol-Based Chlorhexidine and Potassium Sorbate Rub Strengthens the Effectiveness of Traditional Hand Scrubbing and Improves Long-Lasting Effectiveness-Evaluation of Hand Preparation Protocols According to EN 12791. Antibiotics (Basel) 2024; 13:470. [PMID: 38786198 PMCID: PMC11117658 DOI: 10.3390/antibiotics13050470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Despite the advantages of surgical handrub in terms of the ease of application and effectiveness, chlorhexidine (CHG)-based hand scrubbing remains the preferred method for surgical hand preparation. However, it does not systematically meet the non-inferiority requirement of the European norm (EN) 12791 with respect to n-propanol (the reference product) and does not provide the sustained efficacy expected for these long-lasting agents. Commercially available alcohol-based products have also failed to demonstrate sustained efficacy according to EN 12791. Multi-step protocols enhance the efficacy of hand scrubbing, yet their extended disinfection duration might diminish their allure for healthcare professionals. In this study, we show that hand scrubbing with CHG 4% followed by a 1 min rubbing with the novel formulation of ethanol (Et) 70%/CHG 3% plus 0.3% potassium sorbate food additive (PS) meets the non-inferiority requirement and demonstrates sustained efficacy when tested according to EN 12791. The immediate and 3 h effect of this protocol was significantly higher than that of n-propanol and the homologous disinfection protocol without PS (CHG 4% hand scrub plus Et 70%/CHG 3% rub), demonstrating that the inclusion of PS confers a notable residual effect. We speculate that this non-volatile ingredient acts synergistically with CHG. This promising combination represents an alternative method for the development of new disinfection strategies.
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Affiliation(s)
- Elena Herráiz Soria
- Faculty of Health Sciences, Universidad Rey Juan Carlos, 28933 Madrid, Spain; (E.H.S.); (M.L.-I.)
| | - Luis Alou
- Microbiology Area-Medicine Department, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Carlos Martin-Villa
- Faculty of Nursing, Physiotherapy and Podiatry, Universidad Complutense de Madrid, 28040 Madrid, Spain; (C.M.-V.); (R.B.-d.-B.-V.)
| | | | - Marta Losa-Iglesias
- Faculty of Health Sciences, Universidad Rey Juan Carlos, 28933 Madrid, Spain; (E.H.S.); (M.L.-I.)
| | - David Sevillano
- Microbiology Area-Medicine Department, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain;
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Tyski S, Bocian E, Laudy AE. The application of normative documents for determination of biocidal activity of disinfectants and antiseptics dedicated for medical area: a narrative review. J Hosp Infect 2022; 125:75-91. [PMID: 35460800 DOI: 10.1016/j.jhin.2022.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/18/2022] [Accepted: 03/31/2022] [Indexed: 11/29/2022]
Abstract
Disinfectants and antiseptics are important weapons to reduce the number of microorganisms and thus to limit the number of infections. Different methods of antimicrobial activity testing, often not standardised, without appropriate controls and not validated are applied. To address these issues, several European Standards (EN) have been developed, describing the test methods to determine whether chemical disinfectants or antiseptic products have appropriate bactericidal, sporicidal, mycobactericidal or tuberculocidal activity; fungicidal or yeasticidal activity; or virucidal activity. In this narrative review, the 17 EN concerning evaluation of the above-mentioned antimicrobial activity of preparations dedicated to the medical area are briefly reviewed, together with recent publications on this topic. Suspension and carrier tests have been performed in clean and dirty conditions simulating the medical area. In addition, a wide range of applications of these standards has been presented in the research of biocides for hand antisepsis, surfaces disinfection, including airborne disinfection as well as medical device and medical textile disinfection. The role of normative documents in the investigation of antimicrobial activity of disinfectants and antiseptics to limit infections has been underestimated. This narrative review aims to persuade researchers to conduct antimicrobial activity testing in line with validated EN and highlights an existing gap in ongoing research. It also aims to raise awareness of the wide range of biocidal activity tests with standardised methods in medical area. We also pay attention to the recently developed European Pharmacopoeia monography concerning the testing of bactericidal and fungicidal activity of antiseptics classified as medicinal products.
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Affiliation(s)
- Stefan Tyski
- National Medicines Institute, Department of Antibiotics and Microbiology, Chełmska str. 30/34, 00-725 Warsaw, Poland; Medical University of Warsaw, Department of Pharmaceutical Microbiology, Oczki str. 3, 02-007 Warsaw, Poland.
| | - Ewa Bocian
- National Medicines Institute, Department of Antibiotics and Microbiology, Chełmska str. 30/34, 00-725 Warsaw, Poland
| | - Agnieszka E Laudy
- Medical University of Warsaw, Department of Pharmaceutical Microbiology, Oczki str. 3, 02-007 Warsaw, Poland
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Crosse KR. Pre-surgical hand preparation in veterinary practice. N Z Vet J 2021; 70:69-78. [PMID: 34586948 DOI: 10.1080/00480169.2021.1987348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The objective of this paper is to review the evidence for different methods of surgical hand preparation applicable to veterinary practice. Surgical hand preparation is an essential step in performing surgery as a veterinarian. Recommended protocols and products for surgical hand preparation have varied since its inception in the late 1800s. Many factors must be considered when assessing the efficacy, safety, and users' compliance with any available product. Traditional scrub methods employing chlorhexidine gluconate or povidone-iodine have been compared to alcohol-based rub protocols with respect to immediate and prolonged efficacy, safety, compliance, requirements for theatre furniture, cost and water usage. Although much of the comparative data has been generated in human medical facilities, extrapolation of the data to veterinary surgery is appropriate. Considerations for veterinary practice are specifically discussed. Overall, the benefits of alcohol-based rubs indicate that this should be the preferred method of pre-surgical hand preparation for veterinarians in all types of practice.
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Affiliation(s)
- K R Crosse
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Abuga K, Nyamweya N. Alcohol-Based Hand Sanitizers in COVID-19 Prevention: A Multidimensional Perspective. PHARMACY 2021; 9:64. [PMID: 33808754 PMCID: PMC8006002 DOI: 10.3390/pharmacy9010064] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022] Open
Abstract
The global use of alcohol-based hand sanitizers (ABHS) as an important means of controlling the transmission of infectious disease has increased significantly as governments and public health agencies across the world advocated hand hygiene as a preventative measure during the COVID-19 pandemic. Although the performance of these products is most commonly defined as a function of their alcohol concentration, they are multifaceted products in which an interplay of several factors is important in determining efficacy. This paper discusses the interplay between ABHS input (formulation) factors and output (product performance) factors in the context of a multidimensional perspective using a novel representative paradigm. In the model, represented in the form of a three-dimensional tetrahedron, each of the faces represents inputs in the manufacturing of the ABHS product, which are the type and amount of alcohol, the inactive ingredients, the formulation and the manufacturing practices. The four corners of the tetrahedron represent the product performance factors which include product efficacy, sensory characteristics, usage and compliance and product safety. The multidimensional approach to the formulation and evaluation of ABHS shows that several factors contribute to the effectiveness and utility of these products. The paradigm provides a useful framework for manufacturers of ABHS and related healthcare products.
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Affiliation(s)
- Kennedy Abuga
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Nairobi, Nairobi P.O. Box 19676-00202, Kenya
| | - Nasser Nyamweya
- Pharma Manufacturing Solutions, Nairobi P.O. Box 21297-00505, Kenya;
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Azi LMTDA, Fonseca NM, Linard LG. SBA 2020: Regional anesthesia safety recommendations update. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ENGLISH EDITION) 2020. [PMID: 32636024 PMCID: PMC9373527 DOI: 10.1016/j.bjane.2020.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of the Brazilian Society of Anesthesiology (SBA)’s Regional Anesthesia Safety Recommendations Update is to provide new guidelines based on the current relevant clinical aspects related to safety in regional anesthesia and analgesia. The goal of the present article is to provide a broad overview of the current knowledge regarding pre-procedure asepsis and antisepsis, risk factors, diagnosis and treatment of infectious complications resulting from anesthetic techniques. It also aims to shed light on the use of reprocessed materials in regional anesthesia practice to establish the effects of aseptic handling of vials and ampoules, and to show cost-effectiveness in the preparation of solutions to be administered continuously in regional blockades. Electronic databases were searched between January 2011 (final date of the literature search for the past SBA recommendations for safety in regional anesthesia) and September 2019. A total of 712 publications were found, 201 of which were included for further analysis, and 82 new publications were added into the review. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system was used to assess the quality of each study and to classify the strength of evidence. The present review was prepared by members of the SBA Technical Standards Committee.
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Affiliation(s)
- Liana Maria Tôrres de Araújo Azi
- Universidade Federal da Bahia (UFBA), Departamento de Anestesiologia e Cirurgia, Salvador, BA, Brazil; Hospital Universitário Professor Edgard Santos, Centro de Ensino e Treinamento em Anestesiologia, Salvador, BA, Brazil; Comissão de Norma Técnicas da Sociedade Brasileira de Anestesiologia (SBA), Salvador, BA, Brazil.
| | - Neuber Martins Fonseca
- Comissão de Norma Técnicas da Sociedade Brasileira de Anestesiologia (SBA), Salvador, BA, Brazil; Universidade Federal de Uberlândia (UFU), Faculdade de Medicina, Disciplina de Anestesiologia, Uberlândia, MG, Brazil; Universidade Federal de Uberlândia (UFU), Faculdade de Medicina, Centro de Ensino e Treinamento em Anestesiologia, Uberlândia, MG, Brazil; Coordinator of the Comitê de Estudo de Equipamentos Respiratórios e de Anestesiologia da ABNT, and Delegate and representative of the SBA Board at the Technical Committee 121/ISO - Anesthetic and Respiratory Equipment, Uberlândia, MG, Brazil
| | - Livia Gurgel Linard
- Hospital Geral do Estado 2 and of Hospital Roberto Santos, Salvador, BA, Brazil
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Azi LMTDA, Fonseca NM, Linard LG. [SBA 2020: Regional anesthesia safety recommendations update]. Rev Bras Anestesiol 2020; 70:398-418. [PMID: 32636024 DOI: 10.1016/j.bjan.2020.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 01/26/2020] [Accepted: 02/08/2020] [Indexed: 12/24/2022] Open
Abstract
The purpose of the Brazilian Society of Anesthesiology's (SBA) Regional Anesthesia Safety Recommendations Update is to provide new guidelines based on the current relevant clinical aspects related to safety in regional anesthesia and analgesia. The goal of the present article is to provide a broad overview of the current knowledge regarding pre-procedure asepsis and antisepsis, risk factors, diagnosis and treatment of infectious complications resulting from anesthetic techniques. It also aims to shed light on the use of reprocessed materials in regional anesthesia practice to establish the effects of aseptic handling of vials and ampoules, and to show cost-effectiveness in the preparation of solutions to be administered continuously in regional blockades. Electronic databases were searched between January 2011 (final date of the literature search for the past SBA recommendations for safety in regional anesthesia) and September 2019. A total of 712 publications were found, 201 of which were included for further analysis, and 82 new publications were added into the review. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system was used to assess the quality of each study and to classify the strength of evidence. The present review was prepared by members of the SBA Technical Standards Committee.
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Affiliation(s)
- Liana Maria Tôrres de Araújo Azi
- Universidade Federal da Bahia (UFBA), Departamento de Anestesiologia e Cirurgia, Salvador, BA, Brazil; Hospital Universitário Professor Edgard Santos, Centro de Ensino e Treinamento em Anestesiologia, Salvador, BA, Brazil; Comissão de Norma Técnicas da Sociedade Brasileira de Anestesiologia (SBA), Salvador, BA, Brazil.
| | - Neuber Martins Fonseca
- Comissão de Norma Técnicas da Sociedade Brasileira de Anestesiologia (SBA), Salvador, BA, Brazil; Universidade Federal de Uberlândia (UFU), Faculdade de Medicina, Disciplina de Anestesiologia, Uberlândia, MG, Brazil; Universidade Federal de Uberlândia (UFU), Faculdade de Medicina, Centro de Ensino e Treinamento em Anestesiologia, Uberlândia, MG, Brazil; Coordinator of the Comitê de Estudo de Equipamentos Respiratórios e de Anestesiologia da ABNT, and Delegate and representative of the SBA Board at the Technical Committee 121/ISO - Anesthetic and Respiratory Equipment, Uberlândia, MG, Brazil
| | - Livia Gurgel Linard
- Hospital Geral do Estado 2 and of Hospital Roberto Santos, Salvador, BA, Brazil
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Mena-Gómez I. Actualidades en la higiene de manos quirúrgica. Revisión de la literatura. ENFERMERÍA UNIVERSITARIA 2020. [DOI: 10.22201/eneo.23958421e.2020.1.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Introducción: La higiene de manos quirúrgica, procedimiento esencial en cirugía; es una técnica que ha evolucionado y se ha ido actualizando tras el surgimiento de evidencia científica. El manual de la Organización Mundial de la Salud (OMS) publicado hace diez años es uno de los documentos que plasman cambios de esta técnica, como dejar de usar el cepillo. Sin embargo, es necesario analizar la evidencia actual con la finalidad de reconocer las nuevas tendencias de acuerdo con los resultados de las investigaciones publicadas.
Objetivo: Realizar una revisión actualizada de la literatura sobre la higiene de manos quirúrgica.
Desarrollo: El lavado de manos quirúrgico con cepillo es un procedimiento que se realiza en la mayoría de las instituciones hospitalarias de México; pocas han incursionado en la técnica en la que se omite el uso de cepillo. Existen diversos estudios que sustentan que el uso de cepillos debe ser erradicado debido al daño tisular que estos ocasionan. La abrasión dérmica provocada por el uso de cepillos origina que el personal se cepille las superficies de las manos y brazos por menos tiempo que el recomendado y esto a su vez impide un efecto idóneo por parte de los antisépticos. Las sustancias más recomendadas son la clorhexidina y las soluciones a base de alcohol.
Conclusiones: La higiene de manos quirúrgica sin cepillo debe ser considerada debido a que disminuye costos hospitalarios, garantiza la efectividad de la descontaminación de manos, ocasiona menos lesiones dérmicas y contribuye a la reducción de las infecciones relacionadas al sitio quirúrgico.
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Widodo H, Sesaria TG, Maulana MR, Myint NMM. Effectiveness of Surgical hand Washing with Chlorhexidine, Providone iodine and Alcohol on Reducing the Microorganisms on the Hands: A Systematic Review. JURNAL NERS 2020. [DOI: 10.20473/jn.v14i3.17013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background: Postoperative infection is one of the causes of mortality and the hands of the surgical team are the most common cause. According to the The Center for Disease Control and Prevention (CDC), proper hand washing can reduce the occurrence of nosocomial infections by up to 30%. The aim of this study is to determine the effectiveness of surgical hand washing using chlorhexidine, providone iodine and alcohol in reducing the microorganisms on the hand.Method: The data was collected from the following electronic databases: Science Direct, Springer link, Scopus and ProQuest. The search obtained 11 articles in accordance with the inclusion criteria and we obtained the literature in full text form.Result: The results of the study found three articles that mentioned hand washing with an alcohol hand rub as being more effective than iodine and chlorhexidine providone. There was one article described that both alcohol hand rub and chlorhexidine are more effective than iodine providone, Another article mentioned that chlorhexidine, providone iodine and alcohol hand rub were equally effective at reducing microorganisms contaminating the hand.Conclusion: The conclusion of the study is that surgical hand washing using chlorhexidine, providone iodine and alcohol are all effective at reducing microorganisms.
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Barnes S, Stuart R, Redley B. Health care worker sensitivity to chlorhexidine-based hand hygiene solutions: A cross-sectional survey. Am J Infect Control 2019; 47:933-937. [PMID: 30765146 DOI: 10.1016/j.ajic.2019.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/14/2019] [Accepted: 01/14/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Health service hand hygiene programs have seen widespread use of chlorhexidine solutions. Reports of both immediate and delayed hypersensitivity to chlorhexidine are increasing among health care workers. This study examined the prevalence of self-reported symptoms of sensitivity to chlorhexidine solutions among health care workers. METHODS This study was a cross-sectional online anonymous survey of all workers at a single health service. RESULTS Of the 1,050 completed responses, 76.3% were female, 35.3% were nurses and midwives, 28% were medical staff, and 8.7% were working in nonclinical areas. Over 95% used chlorhexidine-based hand hygiene products in their workplace. Nurses and midwives most frequently reported asthma (13.7%), contact dermatitis (27.8%), and previous testing for allergy to chlorhexidine (4.9%). There was a correlation between both the presence of atopy, eczema, or dermatitis and the self-reporting of dry skin, eczema, or dermatitis attributed to chlorhexidine use. DISCUSSION Occupational chlorhexidine allergy is an important risk to health care workers. Self-reported symptoms of sensitivity to chlorhexidine solutions revealed high reported use and presence of skin symptoms among health care workers. CONCLUSIONS Screening programs need to identify nurses who develop chlorhexidine sensitivity due to occupational exposure. Strategies to mitigate risk should provide alternatives for those with sensitization.
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Abstract
Application of antiseptic products to the skin plays an important role in prevention of a variety of health care-associated infections. Preoperative bathing or showering is widely recommended to reduce the risk of surgical site infections. Evidence of the impact of this measure on surgical site infection rates is mixed, and further prospective trials comparing standardized protocols for showering with plain soap or chlorhexidine gluconate (CHG)-containing soap, or bathing with 2% CHG-impregnated cloths are needed to establish the most effective approach. Current evidence favors the use of alcohol-containing solutions, often containing CHG or povidone-iodine, for surgical site preparation of the skin. Preparation of vaginal mucosa prior to gynecologic surgery may be performed using either povidone-iodine or CHG. Surgical hand antisepsis can be performed by scrubbing with an antimicrobial soap or by handrubbing using an alcohol-based handrub. Addition of CHG to alcohol-based handrubs intended for surgical hand antisepsis is not necessary if they meet recommended efficacy criteria. Daily CHG bathing of intensive care unit patients has been shown to reduce a variety of health care-associated infections, most commonly bloodstream infections (BSIs). Achieving and maintaining optimum application protocols may be challenging, suggesting the need for ongoing staff education, monitoring, and feedback. Additional studies are needed to determine the impact of daily CHG bathing of non-intensive care unit patients. Alcoholic CHG is currently the preferred antiseptic for skin preparation prior to insertion of central and arterial intravascular catheters. CHG-impregnated dressings have been shown to reduce catheter-associated BSI. Because of the widespread use of antiseptics, especially CHG, surveillance for emergence of increased tolerance or resistance is warranted. Antiseptics are applied to the skin for a variety of purposes in health care. Common scenarios in which topical antiseptics are used include preoperative bathing, surgical site preparation, surgical hand hygiene, daily bathing of intensive care unit patients, and prevention of intravascular catheter-associated BSI. The purpose of this article is to review recent evidence regarding the best products for skin antisepsis.
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Gaspar GG, Menegueti MG, Lopes AER, Santos ROC, de Araújo TR, Nassiff A, Ferreira LR, Dallora MELV, Canini SRMS, Bellissimo-Rodrigues F. Alcohol-based surgical hand preparation: translating scientific evidence into clinical practice. Antimicrob Resist Infect Control 2018; 7:80. [PMID: 30002820 PMCID: PMC6038254 DOI: 10.1186/s13756-018-0372-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/29/2018] [Indexed: 11/12/2022] Open
Abstract
Background Although alcohol-based surgical hand preparation offers potential advantages over the traditional surgical scrubbing technique, implementing it may be challenging due to resistance of surgeons in changing their practice. We aimed to implement alcohol-based surgical hand preparation in the hospital setting evaluating the impact of that on the quality and duration of the procedure, as well as on the prevention of surgical site infections. Methods A quasi-experimental study conducted at a tertiary-care university hospital from April 01 to November 01, 2017. Participants were cardiac and orthopedic surgical teams (n = 56) and patients operated by them (n = 231). Intervention consisted of making alcohol-based handrub available in the operating room, convincing and training surgical teams for using it, promoting direct observation of surgical hand preparation, and providing aggregated feedback on the quality of the preparation. The primary study outcome was the quality of the surgical hand preparation, inferred by the compliance with each one of the steps predicted in the World Health Organization (WHO) technique, evaluated through direct observation. Secondary study outcome was the patient’s individual probability of developing surgical site infection in both study periods. We used the Wilcoxon for paired samples and McNemar’s test to assess the primary study outcome and we build a logistic regression model to assess the secondary outcome. Results We observed 534 surgical hand preparation events. Among 33 participants with full data available for both study periods, we observed full compliance with all the steps predicted in the WHO technique in 0.03% (1/33) of them in the pre-intervention period and in 36.36% (12/33) of them in the intervention period (OR:12.0, 95% CI: 2. 4-59.2, p = 0.002). Compared to the pre-intervention period, the intervention reduced the duration of the preparation (4.8 min vs 2.7 min, respectively; p < 0.001). The individual risk of developing a surgical site infection did not significantly change between the pre-intervention and the intervention phase (Adjusted RR = 0.66; 95% CI 0. 16-2.70, p = 0.563). Conclusion Our results demonstrate that, when compared to the traditional surgical scrub, alcohol-based surgical hand preparation improves the quality and reduces the duration of the preparation, being at least equally effective for the prevention of surgical site infections.
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Affiliation(s)
- Gilberto G Gaspar
- 1Infection Control Service, University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil.,University Hospital of Ribeirão Preto Medical School, Avenida Bandeirantes, 3900 - Vila Monte Alegre, Ribeirão Preto, SP 14048-900 Brazil
| | - Mayra G Menegueti
- 1Infection Control Service, University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Ana Elisa R Lopes
- 1Infection Control Service, University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Roberto O C Santos
- 2Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Thamiris R de Araújo
- 3Department of Fundamental Nursing, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Aline Nassiff
- 3Department of Fundamental Nursing, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Lécio R Ferreira
- 1Infection Control Service, University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Maria Eulalia L V Dallora
- 4Hospital Administration, University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Silvia R M S Canini
- 3Department of Fundamental Nursing, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP Brazil
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