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Sterilization and disinfection

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https://www.readbyqxmd.com/read/28226554/effects-of-a-non-thermal-plasma-needle-device-on-hpv-16-positive-cervical-cancer-cell-viability-in-vitro
#1
Hollie A Ryan, Johanna Neuber, Shutong Song, Stephen J Beebe, Chunqi Jiang, Hollie A Ryan, Johanna Neuber, Shutong Song, Stephen J Beebe, Chunqi Jiang, Shutong Song, Johanna Neuber, Chunqi Jiang, Stephen J Beebe, Hollie A Ryan
Non-thermal atmospheric pressure plasma has been demonstrated to inactivate a wide range of surface-dwelling pathogenic microorganisms including airborne viral particles, vegetative bacteria and bacterial spores. This shows the promise of plasma-based decontamination procedures for broad-spectrum sterilization and disinfection and promotes the in-depth and systematic study of how plasma treatment conditions relate to pathogen inactivation efficiency. A wide knowledge gap nonetheless exists regarding whether certain plasma parameters and exposure conditions can alter the resistance of virus-linked cancer cells to treatment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28214143/retrospective-study-of-candida-sp-contaminations-of-endoscopes-at-the-university-hospital-of-tlemcen-algeria
#2
REVIEW
I Hassaine-Lahfa, Z Boucherit-Otmani, L Sari-Belkherroubi, K Boucherit
BACKGROUND: Improper cleaning and disinfection of endoscopes has been responsible for multiple nosocomial outbreaks and sometimes serious life-threatening infections. OBJECTIVE: The aim of our study is, at first, to identify Candida species responsible for the contamination of endoscopes, and to determine the minimal inhibitory concentrations of planktonic (MIC) and sessile cells (SMIC) of amphotericin B (AmB) against our isolated strains. MATERIALS AND METHODS: The present study was performed on four endoscopes in the department of gastroenterology at the University Hospital of Tlemcen (Algeria)...
February 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28186464/evaluation-of-antimicrobial-photodynamic-therapy-using-indocyanine-green-and-near-infrared-diode-laser-against-enterococcus-faecalis-in-infected-human-root-canals
#3
Charis Beltes, Nikolaos Economides, Hercules Sakkas, Chrissanthy Papadopoulou, Theodoros Lambrianidis
OBJECTIVE: Photodynamic therapy (PDT) is considered a promising adjunct to the currently available endodontic disinfection techniques leading to more effective reduction of intracanal bacteria. The present ex vivo study aimed to assess the antimicrobial effect of PDT using indocyanine green (ICG) as photosensitizer and a near-infrared (NIR) diode laser in root canals of human teeth infected with Enterococcus faecalis. MATERIALS AND METHODS: Ninety single-rooted teeth after chemomechanical preparation and sterilization were contaminated with an E...
February 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28174366/radiofrequency-glow-discharge-as-a-mode-of-disinfection-for-elastomeric-impression-materials
#4
Susan Mathew, Mathew M Alani, K N Velayudhan Nair, Sayij Haridas, P B Reba, Sherin A Thomas
INTRODUCTION: Prosthodontic practice involves procedures in which impressions of the maxillary and mandibular arches are mandatory. Cross infection is one of the major problems that can occur in regular dental practice. Every dentist should take utmost care to prevent cross infection as oral cavity is the source of variety of microorganisms which can often cause diseases that can be fatal. Although precautions, such as wearing of gloves and mask, sterilization of instruments are given importance, the need for disinfection of impressions is often neglected...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28146555/disinfection-of-ebola-virus-in-sterilized-municipal-wastewater
#5
Kyle Bibby, Robert J Fischer, Leonard W Casson, Nathalia Aquino de Carvalho, Charles N Haas, Vincent J Munster
Concerns have been raised regarding handling of Ebola virus contaminated wastewater, as well as the adequacy of proposed disinfection approaches. In the current study, we investigate the inactivation of Ebola virus in sterilized domestic wastewater utilizing sodium hypochlorite addition and pH adjustment. No viral inactivation was observed in the one-hour tests without sodium hypochlorite addition or pH adjustment. No virus was recovered after 20 seconds (i.e. 4.2 log10 unit inactivation to detection limit) following the addition of 5 and 10 mg L-1 sodium hypochlorite, which resulted in immediate free chlorine residuals of 0...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28134720/multidepartmental-response-to-a-duodenoscope-used-on-a-cre-patient-a-case-study
#6
Mark A Bruns, Elizabeth R Gibbs
Transmission of carbapenem-resistant Enterobacteriaceae (CRE) via duodenoscopes, specialized endoscopes used during endoscopic retrograde cholangiopancreatography (ERCP) procedures, has attracted media attention since early 2015. This attention has placed increasing focus on the reprocessing of duodenoscopes. Current reprocessing recommendations for these endoscopes require either high-level disinfection or ethylene oxide sterilization. While reprocessing duodenoscopes, staff at endoscopy locations within the Mercy health system perform a single high-level disinfection cycle that is preceded by two cycles of manual cleaning...
January 2017: Gastroenterology Nursing: the Official Journal of the Society of Gastroenterology Nurses and Associates
https://www.readbyqxmd.com/read/28077517/two-phase-hospital-associated-outbreak-of-mycobacterium-abscessus-investigation-and-mitigation
#7
Arthur W Baker, Sarah S Lewis, Barbara D Alexander, Luke F Chen, Richard J Wallace, Barbara A Brown-Elliott, Pamela J Isaacs, Lisa C Pickett, Chetan B Patel, Peter K Smith, John M Reynolds, Jill Engel, Cameron R Wolfe, Carmelo A Milano, Jacob N Schroder, Robert D Davis, Matthew G Hartwig, Jason E Stout, Nancy Strittholt, Eileen K Maziarz, Jennifer Horan Saullo, Kevin C Hazen, Richard J Walczak, Ravikiran Vasireddy, Sruthi Vasireddy, Celeste M McKnight, Deverick J Anderson, Daniel J Sexton
BACKGROUND: Nontuberculous mycobacteria (NTM) commonly colonize municipal water and cause healthcare-associated outbreaks. We investigated a biphasic outbreak of Mycobacterium abscessus at a tertiary care hospital. METHODS: Case patients had recent hospital exposure and laboratory-confirmed colonization or infection with M. abscessus from January 2013 through December 2015. We conducted a multidisciplinary epidemiologic, field, and laboratory investigation. RESULTS: The incidence rate of M...
January 11, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28050984/evaluation-of-bacteriological-profile-in-the-apical-root-segment-of-the-patients-with-primary-apical-periodontitis
#8
Aravind Tatikonda, N Sudheep, Krishna P Biswas, K Gowtham, Sudarshan Pujari, Padam Singh
INTRODUCTION: Apical periodontitis usually results from bacterial accumulation and contamination occurring in the root-canal system, and extending beyond the apical foramen to involve the periapical tissues. Literature has a paucity of the studies that stress on the division and analysis of the pulp canal segments. The reason for this disparity might be the technique used for collecting the samples from the pulp canals. Hence, we carried out the present study to evaluate the microbial flora in the apical part of the roots with necrotic pulp canals...
1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28045704/neonatal-peripherally-inserted-central-catheter-practices-and-providers-results-from-the-neonatal-picc1-survey
#9
Elizabeth Sharpe, Latoya Kuhn, David Ratz, Sarah L Krein, Vineet Chopra
BACKGROUND: Neonatal intensive care units (NICUs) commonly utilize peripherally inserted central catheters (PICCs) to provide nutrition and long-term medications to premature and full-term infants. However, little is known about PICC practices in these settings. PURPOSE: To assess PICC practices, policies, and providers in NICUs. METHODS: The Neonatal PICC1 Survey was conducted through the use of the electronic mailing list of a national neonatal professional organization's electronic membership community...
December 29, 2016: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28040502/a-comparison-between-effect-of-photodynamic-therapy-by-led-and-calcium-hydroxide-therapy-for-root-canal-disinfection-against-enterococcus-faecalis-a-randomized-controlled-trial
#10
Mohammad Asnaashari, Hengameh Ashraf, Afsaneh Rahmati, Neda Amini
BACKGROUND: Insufficient root canal disinfection is one of the main reasons for persistent periapical pathology. Photodynamic therapy (PDT) has been proven effective in disinfecting infected root canals. The aim of this study was to evaluate the antimicrobial effect of photo activated disinfection (PAD) when using toluidine blue as photosensitizer and a LED lamp after the conventional treatment, and comparing it with calcium hydroxide therapy in vivo. METHODS: This clinical trial includes 20 patients with molars requiring endodontic retreatment...
December 28, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/27996305/infection-control-and-patient-discomfort-with-an-alternative-plastic-barrier-in-intraoral-digital-radiography
#11
Arnon Charuakkra, Sangsom Prapayasatok, Apirum Janhom, Karune Verochana, Phattaranant Mahasantipiya
OBJECTIVES: (1) To compare the efficacy of a commercially available hygienic sheath and an alternative plastic bag in preventing contamination of the imaging plate during intraoral radiography and (2) to compare patient discomfort when using the hygienic sheath and the plastic bag. METHODS: 60 sterilized Size 2 imaging plates covered with either the hygienic sheath (n = 30) or the plastic bag (n = 30) were used to simulate digital periapical radiographic examination in 30 volunteer patients...
February 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27989595/analysis-of-genomic-responses-in-a-rat-lung-model-treated-with-a-humidifier-sterilizer-containing-polyhexamethyleneguanidine-phosphate
#12
Min-Seok Kim, Seok Won Jeong, Seong-Jin Choi, Jin-Young Han, Sung-Hwan Kim, Seokjoo Yoon, Jung-Hwa Oh, Kyuhong Lee
The antimicrobial biocide polyhexamethyleneguanidine (PHMG) phosphate is the main ingredient in the commercially available humidifier disinfectant. PHMG phosphate-based humidifier disinfectants can cause pulmonary fibrosis and induce inflammatory and fibrotic responses both in vivo and in vitro. However, toxicological mechanisms including genomic alterations induced by inhalation exposure to PHMG phosphate have not been elucidated. Therefore, this study evaluated the toxicological effects of the PHMG phosphate-containing humidifier disinfectant...
February 15, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/27931630/infectious-complications-in-gastrointestinal-endoscopy-and-their-prevention
#13
REVIEW
Julia Kovaleva
Gastrointestinal endoscopes are medical devices that have been associated with outbreaks of health care-associated infections. Because of the severity and limited treatment options of infections caused by multidrug-resistant Enterobacteriaceae and Pseudomonas aeruginosa, considerable attention has been paid to detection and prevention of these post-endoscopic outbreaks. Endoscope reprocessing involves cleaning, high-level disinfection/sterilization followed by rinsing and drying before storage. Failure of the decontamination process implies the risk of settlement of biofilm producing species in endoscope channels...
October 2016: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/27890058/disinfection-and-sterilization-emerging-trends-and-technologies
#14
Marsha Barnden
No abstract text is available yet for this article.
December 2016: AORN Journal
https://www.readbyqxmd.com/read/27882119/bactericidal-effect-of-plasma-jet-with-helium-flowing-through-3-hydrogen-peroxide-against-enterococcus-faecalis
#15
Xin-Cai Zhou, Yu-Lan Li, De-Xi Liu, Ying-Guang Cao, Xin-Pei Lu
The aim of the present study was to assess the antimicrobial activity of plasma jet with helium (He) flowing through 3% hydrogen peroxide in root canals infected with Enterococcus faecalis. A total of 42 single-rooted anterior teeth were prepared, sterilized, inoculated with an E. faecalis suspension and incubated for 7 days. Next, the teeth were randomly divided into six experimental groups (including groups treated by plasma jet with or without He for different time durations) and one control group treated without plasma...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27878220/diagnosis-of-compliance-of-health-care-product-processing-in-primary-health-care
#16
Camila Eugenia Roseira, Darlyani Mariano da Silva, Isis Pienta Batista Dias Passos, Fabiana Souza Orlandi, Maria Clara Padoveze, Rosely Moralez de Figueiredo
Objective: identify the compliance of health care product processing in Primary Health Care and assess possible differences in the compliance among the services characterized as Primary Health Care Service and Family Health Service. Method: quantitative, observational, descriptive and inferential study with the application of structure, process and outcome indicators of the health care product processing at ten services in an interior city of the State of São Paulo - Brazil...
November 21, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27866488/disposable-bronchoscope-model-for-simulating-endoscopic-reprocessing-and-surveillance-cultures
#17
Mohamed H Yassin, Rahman Hariri, Yasir Hamad, Juliet Ferrelli, Leeanna McKibben, Yohei Doi
BACKGROUND Endoscope-associated infections are reported despite following proper reprocessing methods. Microbiological testing can confirm the adequacy of endoscope reprocessing. Multiple controversies related to the method and interpretation of microbiological testing cultures have arisen that make their routine performance a complex target. OBJECTIVE We conducted a pilot study using disposable bronchoscopes (DBs) to simulate different reprocessing times and soaking times and to compare high-level disinfection versus ethylene oxide sterilization...
February 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27866468/intratubular-disinfection-with-tri-antibiotic-and-calcium-hydroxide-pastes
#18
Thais Cristina Pereira, Layla Reginna Silva Munhoz De Vasconcelos, Marcia Sirlene Zardin Graeff, Marco Antonio Hungaro Duarte, Clóvis Monteiro Bramante, Flaviana Bombarda De Andrade
OBJECTIVE: The aim of this study was to compare the in vitro intradentinal antimicrobial ability of the calcium hydroxide and tri-antibiotic pastes. MATERIALS AND METHODS: Standard bovine dentin tubes were sterilized and then infected with Enterococcus faecalis by a new contamination protocol of great depths of dentin. The specimens were filled with the medications, divided into two test-groups: calcium hydroxide (Group 1) and tri-antibiotic (Group 2) pastes. After 15 days, the teeth were evaluated by microbiological culture and confocal laser scanning microscopy (CLSM) with viability dye assay LIVE/DEAD inside dentinal tubules...
March 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/27822328/solar-optics-based-active-panel-for-solar-energy-storage-and-disinfection-of-greywater
#19
W Lee, J Song, J H Son, M P Gutierrez, T Kang, D Kim, L P Lee
Smart city and innovative building strategies are becoming increasingly more necessary because advancing a sustainable building system is regarded as a promising solution to overcome the depleting water and energy. However, current sustainable building systems mainly focus on energy saving and miss a holistic integration of water regeneration and energy generation. Here, we present a theoretical study of a solar optics-based active panel (SOAP) that enables both solar energy storage and photothermal disinfection of greywater simultaneously...
September 2016: Biomicrofluidics
https://www.readbyqxmd.com/read/27818222/adenosine-triphosphate-bioluminescence-for-bacteriologic-surveillance-and-reprocessing-strategies-for-minimizing-risk-of-infection-transmission-by-duodenoscopes
#20
Saurabh Sethi, Robert J Huang, Monique T Barakat, Niaz Banaei, Shai Friedland, Subhas Banerjee
BACKGROUND AND AIMS: Recent outbreaks of duodenoscope-transmitted infections underscore the importance of adequate endoscope reprocessing. Adenosine triphosphate (ATP) bioluminescence testing allows rapid evaluation of endoscopes for bacteriologic/biologic residue. In this prospective study we evaluate the utility of ATP in bacteriologic surveillance and the effects of endoscopy staff education and dual cycles of cleaning and high-level disinfection (HLD) on endoscope reprocessing. METHODS: ATP bioluminescence was measured after precleaning, manual cleaning, and HLD on rinsates from suction-biopsy channels of all endoscopes and elevator channels of duodenoscopes/linear echoendoscopes after use...
November 3, 2016: Gastrointestinal Endoscopy
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