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Items: 1 to 50 of 102

1.

Impact of wet storage and other factors on biofilm formation and contamination of patient-ready endoscopes: a narrative review.

Alfa MJ, Singh H.

Gastrointest Endosc. 2019 Sep 12. pii: S0016-5107(19)32219-9. doi: 10.1016/j.gie.2019.08.043. [Epub ahead of print] Review.

PMID:
31521779
2.
3.

Medical instrument reprocessing: current issues with cleaning and cleaning monitoring.

Alfa MJ.

Am J Infect Control. 2019 Jun;47S:A10-A16. doi: 10.1016/j.ajic.2019.02.029. Review.

PMID:
31146843
4.

Evaluation of an overnight non-culture test for detection of viable Gram-negative bacteria in endoscope channels.

Singh H, Duerksen DR, Schultz G, Reidy C, DeGagne P, Olson N, Nugent Z, Alfa MJ.

Endosc Int Open. 2019 Feb;7(2):E268-E273. doi: 10.1055/a-0808-4342. Epub 2019 Jan 30.

5.

Multisite evaluation of environmental cleanliness of high-touch surfaces in intensive care unit patient rooms.

Hopman J, Donskey CJ, Boszczowski I, Alfa MJ.

Am J Infect Control. 2018 Oct;46(10):1198-1200. doi: 10.1016/j.ajic.2018.03.031. Epub 2018 May 24.

PMID:
29803595
6.

Evaluation of adenosine triphosphate test for cleaning assessment of gastroscopes and the effect on workload in a busy endoscopy center.

Schmitt C, Pires Maciel AL, Boszczowski I, da Silva TP, Neves EAJ, Rossini GF, Rizek C, Costa SF, Lourenço RF, Alfa MJ.

Am J Infect Control. 2018 Oct;46(10):1110-1114. doi: 10.1016/j.ajic.2018.04.215. Epub 2018 May 18.

PMID:
29784442
7.

Impact of cleaning monitoring combined with channel purge storage on elimination of Escherichia coli and environmental bacteria from duodenoscopes.

Singh H, Duerksen DR, Schultz G, Reidy C, DeGagne P, Olson N, Nugent Z, Bernard KA, Alfa MJ.

Gastrointest Endosc. 2018 Aug;88(2):292-302. doi: 10.1016/j.gie.2018.02.018. Epub 2018 Feb 21.

PMID:
29476844
8.

A Randomized Placebo Controlled Clinical Trial to Determine the Impact of Digestion Resistant Starch MSPrebiotic® on Glucose, Insulin, and Insulin Resistance in Elderly and Mid-Age Adults.

Alfa MJ, Strang D, Tappia PS, Olson N, DeGagne P, Bray D, Murray BL, Hiebert B.

Front Med (Lausanne). 2018 Jan 22;4:260. doi: 10.3389/fmed.2017.00260. eCollection 2017.

9.

Sterile Reverse Osmosis Water Combined with Friction Are Optimal for Channel and Lever Cavity Sample Collection of Flexible Duodenoscopes.

Alfa MJ, Singh H, Nugent Z, Duerksen D, Schultz G, Reidy C, DeGagne P, Olson N.

Front Med (Lausanne). 2017 Nov 7;4:191. doi: 10.3389/fmed.2017.00191. eCollection 2017.

10.

Simulated-Use Polytetrafluorethylene Biofilm Model: Repeated Rounds of Complete Reprocessing Lead to Accumulation of Organic Debris and Viable Bacteria.

Alfa MJ, Singh H, Nugent Z, Duerksen D, Schultz G, Reidy C, DeGagne P, Olson N.

Infect Control Hosp Epidemiol. 2017 Nov;38(11):1284-1290. doi: 10.1017/ice.2017.215. Epub 2017 Oct 17.

PMID:
29039290
11.

Improper positioning of the elevator lever of duodenoscopes may lead to sequestered bacteria that survive disinfection by automated endoscope reprocessors.

Alfa MJ, Singh H, Duerksen DR, Schultz G, Reidy C, DeGagne P, Olson N.

Am J Infect Control. 2018 Jan;46(1):73-75. doi: 10.1016/j.ajic.2017.07.021. Epub 2017 Sep 14.

PMID:
28918989
12.

A novel polytetrafluoroethylene-channel model, which simulates low levels of culturable bacteria in buildup biofilm after repeated endoscope reprocessing.

Alfa MJ, Ribeiro MM, da Costa Luciano C, Franca R, Olson N, DeGagne P, Singh H.

Gastrointest Endosc. 2017 Sep;86(3):442-451.e1. doi: 10.1016/j.gie.2017.05.014. Epub 2017 May 24.

PMID:
28551023
13.

A randomized trial to determine the impact of a digestion resistant starch composition on the gut microbiome in older and mid-age adults.

Alfa MJ, Strang D, Tappia PS, Graham M, Van Domselaar G, Forbes JD, Laminman V, Olson N, DeGagne P, Bray D, Murray BL, Dufault B, Lix LM.

Clin Nutr. 2018 Jun;37(3):797-807. doi: 10.1016/j.clnu.2017.03.025. Epub 2017 Mar 31.

14.
15.

Current issues result in a paradigm shift in reprocessing medical and surgical instruments.

Alfa MJ.

Am J Infect Control. 2016 May 2;44(5 Suppl):e41-5. doi: 10.1016/j.ajic.2016.01.020. Review.

PMID:
27131134
16.

Reproducible elimination of Clostridium difficile spores using a clinical area washer disinfector in 3 different health care sites.

MacDonald K, Bishop J, Dobbyn B, Kibsey P, Alfa MJ.

Am J Infect Control. 2016 Jul 1;44(7):e107-11. doi: 10.1016/j.ajic.2016.01.024. Epub 2016 Mar 31.

PMID:
27040564
17.

Physical and composition characteristics of clinical secretions compared with test soils used for validation of flexible endoscope cleaning.

Alfa MJ, Olson N.

J Hosp Infect. 2016 May;93(1):83-8. doi: 10.1016/j.jhin.2016.01.023. Epub 2016 Feb 27.

18.

Microfiber cloths reduce the transfer of Clostridium difficile spores to environmental surfaces compared with cotton cloths.

Trajtman AN, Manickam K, Alfa MJ.

Am J Infect Control. 2015 Jul 1;43(7):686-9. doi: 10.1016/j.ajic.2015.03.002. Epub 2015 Apr 20.

PMID:
25907782
19.

Intra-cavitary ultrasound probes: cleaning and high-level disinfection are necessary for both the probe head and handle to reduce the risk of infection transmission.

Alfa MJ.

Infect Control Hosp Epidemiol. 2015 May;36(5):585-6. doi: 10.1017/ice.2015.13. No abstract available.

PMID:
25880679
20.

Adenosine tri-phosphate (ATP)-based cleaning monitoring in health care: how rapidly does environmental ATP deteriorate?

Alfa MJ, Olson N, Murray BL.

J Hosp Infect. 2015 May;90(1):59-65. doi: 10.1016/j.jhin.2015.01.020. Epub 2015 Feb 26.

PMID:
25794441
21.

Use of a daily disinfectant cleaner instead of a daily cleaner reduced hospital-acquired infection rates.

Alfa MJ, Lo E, Olson N, MacRae M, Buelow-Smith L.

Am J Infect Control. 2015 Feb;43(2):141-6. doi: 10.1016/j.ajic.2014.10.016. Epub 2014 Dec 18.

22.

Comparison of washer-disinfector cleaning indicators: impact of temperature and cleaning cycle parameters.

Alfa MJ, Olson N.

Am J Infect Control. 2014 Feb;42(2):e23-6. doi: 10.1016/j.ajic.2013.10.005.

PMID:
24485382
23.

Pets are 'risky business' for patients undergoing continuous ambulatory peritoneal dialysis.

Al-Fifi YS, Sathianathan C, Murray BL, Alfa MJ.

Can J Infect Dis Med Microbiol. 2013 Fall;24(3):e96-8.

25.

Comparison of clinically relevant benchmarks and channel sampling methods used to assess manual cleaning compliance for flexible gastrointestinal endoscopes.

Alfa MJ, Olson N, Murray BL.

Am J Infect Control. 2014 Jan;42(1):e1-5. doi: 10.1016/j.ajic.2013.08.007.

PMID:
24388478
26.
27.

Monitoring and improving the effectiveness of cleaning medical and surgical devices.

Alfa MJ.

Am J Infect Control. 2013 May;41(5 Suppl):S56-9. doi: 10.1016/j.ajic.2012.12.006. Review.

PMID:
23622750
28.

Continuing performance feedback and use of the ultraviolet visible marker to assess cleaning compliance in the healthcare environment.

Trajtman AN, Manickam K, Macrae M, Bruning NS, Alfa MJ.

J Hosp Infect. 2013 Jun;84(2):166-72. doi: 10.1016/j.jhin.2013.03.004. Epub 2013 Apr 28.

PMID:
23631799
29.

Detection of Clostridium difficile in retail ground meat products in Manitoba.

Visser M, Sephri S, Olson N, Du T, Mulvey MR, Alfa MJ.

Can J Infect Dis Med Microbiol. 2012 Spring;23(1):28-30. Erratum in: Can J Infect Dis Med Microbiol. 2012 Winter;23(4):244. Sepehrim, Shadi [corrected to Sephri, Shadi].

30.

CHROMagar Orientation medium reduces urine culture workload.

Manickam K, Karlowsky JA, Adam H, Lagacé-Wiens PR, Rendina A, Pang P, Murray BL, Alfa MJ.

J Clin Microbiol. 2013 Apr;51(4):1179-83. doi: 10.1128/JCM.02877-12. Epub 2013 Jan 30.

31.

Alkaline detergent combined with a routine ward bedpan washer disinfector cycle eradicates Clostridium difficile spores from the surface of plastic bedpans.

Alfa MJ, Olson N, Buelow-Smith L, Murray BL.

Am J Infect Control. 2013 Apr;41(4):381-3. doi: 10.1016/j.ajic.2012.04.326. Epub 2012 Oct 4.

PMID:
23040603
32.

Validation of adenosine triphosphate to audit manual cleaning of flexible endoscope channels.

Alfa MJ, Fatima I, Olson N.

Am J Infect Control. 2013 Mar;41(3):245-8. doi: 10.1016/j.ajic.2012.03.018. Epub 2012 Sep 11.

PMID:
22980510
33.

The adenosine triphosphate test is a rapid and reliable audit tool to assess manual cleaning adequacy of flexible endoscope channels.

Alfa MJ, Fatima I, Olson N.

Am J Infect Control. 2013 Mar;41(3):249-53. doi: 10.1016/j.ajic.2012.03.015. Epub 2012 Sep 11.

PMID:
22975364
34.

Identification of blood culture isolates directly from positive blood cultures by use of matrix-assisted laser desorption ionization-time of flight mass spectrometry and a commercial extraction system: analysis of performance, cost, and turnaround time.

Lagacé-Wiens PR, Adam HJ, Karlowsky JA, Nichol KA, Pang PF, Guenther J, Webb AA, Miller C, Alfa MJ.

J Clin Microbiol. 2012 Oct;50(10):3324-8. doi: 10.1128/JCM.01479-12. Epub 2012 Aug 8.

35.

The 'pandora's box' dilemma: reprocessing of implantable screws and plates in orthopedic tray sets.

Alfa MJ.

Biomed Instrum Technol. 2012 Spring;Suppl:55-9. doi: 10.2345/0899-8205-12.1.55. No abstract available.

PMID:
22559778
36.

Development and validation of rapid use scope test strips to determine the efficacy of manual cleaning for flexible endoscope channels.

Alfa MJ, Olson N, Degagné P, Simner PJ.

Am J Infect Control. 2012 Nov;40(9):860-5. doi: 10.1016/j.ajic.2011.10.006. Epub 2012 Feb 7.

PMID:
22317858
37.

Multidrug-resistant North American pulsotype 2 Clostridium difficile was the predominant toxigenic hospital-acquired strain in the province of Manitoba, Canada, in 2006-2007.

Karlowsky JA, Zhanel GG, Hammond GW, Rubinstein E, Wylie J, Du T, Mulvey MR, Alfa MJ.

J Med Microbiol. 2012 May;61(Pt 5):693-700. doi: 10.1099/jmm.0.041053-0. Epub 2012 Feb 2.

PMID:
22301615
38.

Establishing a clinically relevant bioburden benchmark: a quality indicator for adequate reprocessing and storage of flexible gastrointestinal endoscopes.

Alfa MJ, Sepehri S, Olson N, Wald A.

Am J Infect Control. 2012 Apr;40(3):233-6. doi: 10.1016/j.ajic.2011.02.023. Epub 2011 Jun 25.

PMID:
21704429
39.

Evaluation of BacT/Alert 3D automated unit for detection of nontuberculous mycobacteria requiring incubation at 30 degrees C for optimal growth.

Alfa MJ, Manickam K, Sepehri S, Sitter D, Lenton P.

J Clin Microbiol. 2011 Jul;49(7):2691-3. doi: 10.1128/JCM.00513-11. Epub 2011 May 4.

40.

Microbiology of the Genitourinary System.

Ronald AR, Alfa MJ.

In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 97.

41.

Improved eradication of Clostridium difficile spores from toilets of hospitalized patients using an accelerated hydrogen peroxide as the cleaning agent.

Alfa MJ, Lo E, Wald A, Dueck C, DeGagne P, Harding GK.

BMC Infect Dis. 2010 Sep 15;10:268. doi: 10.1186/1471-2334-10-268.

42.

EVOTECH endoscope cleaner and reprocessor (ECR) simulated-use and clinical-use evaluation of cleaning efficacy.

Alfa MJ, DeGagne P, Olson N, Fatima I.

BMC Infect Dis. 2010 Jul 9;10:200. doi: 10.1186/1471-2334-10-200. Erratum in: BMC Infect Dis. 2010;10:291.

43.

Real-time PCR assay provides reliable assessment of intrapartum carriage of group B Streptococcus.

Alfa MJ, Sepehri S, De Gagne P, Helawa M, Sandhu G, Harding GK.

J Clin Microbiol. 2010 Sep;48(9):3095-9. doi: 10.1128/JCM.00594-10. Epub 2010 Jun 30.

44.

Cleaning efficacy of medical device washers in North American healthcare facilities.

Alfa MJ, Olson N, Al-Fadhaly A.

J Hosp Infect. 2010 Feb;74(2):168-77. doi: 10.1016/j.jhin.2009.06.030. Epub 2009 Aug 27.

PMID:
19716205
45.

Truncation in the tcdC region of the Clostridium difficile PathLoc of clinical isolates does not predict increased biological activity of Toxin B or Toxin A.

Murray R, Boyd D, Levett PN, Mulvey MR, Alfa MJ.

BMC Infect Dis. 2009 Jun 28;9:103. doi: 10.1186/1471-2334-9-103.

46.

Modeling microbial survival in buildup biofilm for complex medical devices.

Alfa MJ, Howie R.

BMC Infect Dis. 2009 May 8;9:56. doi: 10.1186/1471-2334-9-56.

47.

ESBL genotypes in fluoroquinolone-resistant and fluoroquinolone-susceptible ESBL-producing Escherichia coli urinary isolates in Manitoba.

Lagacé-Wiens PR, Nichol KA, Nicolle LE, Decorby MR, McCracken M, Alfa MJ, Mulvey MR, Zhanel GG.

Can J Infect Dis Med Microbiol. 2007 Mar;18(2):133-7.

48.

Survival of enveloped and non-enveloped viruses on surfaces compared with other micro-organisms and impact of suboptimal disinfectant exposure.

Howie R, Alfa MJ, Coombs K.

J Hosp Infect. 2008 Aug;69(4):368-76. doi: 10.1016/j.jhin.2008.04.024. Epub 2008 Jul 7. Erratum in: J Hosp Infect. 2009 Mar;71(3):294.

PMID:
18602193
49.
50.

Simulated-use testing of bedpan and urinal washer disinfectors: evaluation of Clostridium difficile spore survival and cleaning efficacy.

Alfa MJ, Olson N, Buelow-Smith L.

Am J Infect Control. 2008 Feb;36(1):5-11. doi: 10.1016/j.ajic.2007.04.277.

PMID:
18241730

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