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Guh AY, Fridkin S, Goodenough D, Winston LG, Johnston H, Basiliere E, Olson D, Wilson CD, Watkins JJ, Korhonen L, Gerding DN. Potential underreporting of treated patients using a Clostridioides difficile testing algorithm that screens with a nucleic acid amplification test. Infect Control Hosp Epidemiol 2024; 45:590-598. [PMID: 38268440 PMCID: PMC11027077 DOI: 10.1017/ice.2023.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/25/2023] [Accepted: 11/01/2023] [Indexed: 01/26/2024]
Abstract
OBJECTIVE Patients tested for Clostridioides difficile infection (CDI) using a 2-step algorithm with a nucleic acid amplification test (NAAT) followed by toxin assay are not reported to the National Healthcare Safety Network as a laboratory-identified CDI event if they are NAAT positive (+)/toxin negative (-). We compared NAAT+/toxin- and NAAT+/toxin+ patients and identified factors associated with CDI treatment among NAAT+/toxin- patients. DESIGN Retrospective observational study. SETTING The study was conducted across 36 laboratories at 5 Emerging Infections Program sites. PATIENTS We defined a CDI case as a positive test detected by this 2-step algorithm during 2018-2020 in a patient aged ≥1 year with no positive test in the previous 8 weeks. METHODS We used multivariable logistic regression to compare CDI-related complications and recurrence between NAAT+/toxin- and NAAT+/toxin+ cases. We used a mixed-effects logistic model to identify factors associated with treatment in NAAT+/toxin- cases. RESULTS Of 1,801 cases, 1,252 were NAAT+/toxin-, and 549 were NAAT+/toxin+. CDI treatment was given to 866 (71.5%) of 1,212 NAAT+/toxin- cases versus 510 (95.9%) of 532 NAAT+/toxin+ cases (P < .0001). NAAT+/toxin- status was protective for recurrence (adjusted odds ratio [aOR], 0.65; 95% CI, 0.55-0.77) but not CDI-related complications (aOR, 1.05; 95% CI, 0.87-1.28). Among NAAT+/toxin- cases, white blood cell count ≥15,000/µL (aOR, 1.87; 95% CI, 1.28-2.74), ≥3 unformed stools for ≥1 day (aOR, 1.90; 95% CI, 1.40-2.59), and diagnosis by a laboratory that provided no or neutral interpretive comments (aOR, 3.23; 95% CI, 2.23-4.68) were predictors of CDI treatment. CONCLUSION Use of this 2-step algorithm likely results in underreporting of some NAAT+/toxin- cases with clinically relevant CDI. Disease severity and laboratory interpretive comments influence treatment decisions for NAAT+/toxin- cases.
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Affiliation(s)
- Alice Y. Guh
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Scott Fridkin
- Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Decatur, Georgia
| | - Dana Goodenough
- Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Decatur, Georgia
- Atlanta Veterans’ Affairs Medical Center, Decatur, Georgia
| | - Lisa G. Winston
- University of California, San Francisco, School of Medicine, San Francisco, California
| | - Helen Johnston
- Colorado Department of Public Health and Environment, Denver, Colorado
| | | | - Danyel Olson
- Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut
| | | | | | - Lauren Korhonen
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Dale N. Gerding
- Edward Hines, Jr., Veterans’ Affairs Hospital, Hines, Illinois
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Guh AY, Li R, Korhonen L, Winston LG, Parker E, Czaja CA, Johnston H, Basiliere E, Meek J, Olson D, Fridkin SK, Wilson LE, Perlmutter R, Holzbauer SM, D’Heilly P, Phipps EC, Flores KG, Dumyati GK, Pierce R, Ocampo VLS, Wilson CD, Watkins JJ, Gerding DN, McDonald LC. Characteristics of Patients With Initial Clostridioides difficile Infection (CDI) That Are Associated With Increased Risk of Multiple CDI Recurrences. Open Forum Infect Dis 2024; 11:ofae127. [PMID: 38577028 PMCID: PMC10993058 DOI: 10.1093/ofid/ofae127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/04/2024] [Indexed: 04/06/2024] Open
Abstract
Background Because interventions are available to prevent further recurrence in patients with recurrent Clostridioides difficile infection (rCDI), we identified predictors of multiple rCDI (mrCDI) in adults at the time of presentation with initial CDI (iCDI). Methods iCDI was defined as a positive C difficile test in any clinical setting during January 2018-August 2019 in a person aged ≥18 years with no known prior positive test. rCDI was defined as a positive test ≥14 days from the previous positive test within 180 days after iCDI; mrCDI was defined as ≥2 rCDI. We performed multivariable logistic regression analysis. Results Of 18 829 patients with iCDI, 882 (4.7%) had mrCDI; 437 with mrCDI and 7484 without mrCDI had full chart reviews. A higher proportion of patients with mrCDI than without mrCDI were aged ≥65 years (57.2% vs 40.7%; P < .0001) and had healthcare (59.1% vs 46.9%; P < .0001) and antibiotic (77.3% vs 67.3%; P < .0001) exposures in the 12 weeks preceding iCDI. In multivariable analysis, age ≥65 years (adjusted odds ratio [aOR], 1.91; 95% confidence interval [CI], 1.55-2.35), chronic hemodialysis (aOR, 2.28; 95% CI, 1.48-3.51), hospitalization (aOR, 1.64; 95% CI, 1.33-2.01), and nitrofurantoin use (aOR, 1.95; 95% CI, 1.18-3.23) in the 12 weeks preceding iCDI were associated with mrCDI. Conclusions Patients with iCDI who are older, on hemodialysis, or had recent hospitalization or nitrofurantoin use had increased risk of mrCDI and may benefit from early use of adjunctive therapy to prevent mrCDI. If confirmed, these findings could aid in clinical decision making and interventional study designs.
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Affiliation(s)
- Alice Y Guh
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Rongxia Li
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lauren Korhonen
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lisa G Winston
- School of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Erin Parker
- California Emerging Infections Program, Oakland, California, USA
| | | | - Helen Johnston
- Colorado Department of Public Health and Environment, Denver,Colorado, USA
| | | | - James Meek
- Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut, USA
| | - Danyel Olson
- Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut, USA
| | | | - Lucy E Wilson
- University of Maryland Baltimore County, Baltimore, Maryland, USA
| | | | - Stacy M Holzbauer
- Minnesota Department of Health, St Paul, Minnesota, USA
- Career Epidemiology Field Officer Program, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | | | - Erin C Phipps
- New Mexico Emerging Infections Program, University of New Mexico, Albuquerque, New Mexico, USA
| | - Kristina G Flores
- New Mexico Emerging Infections Program, University of New Mexico, Albuquerque, New Mexico, USA
| | - Ghinwa K Dumyati
- New York Emerging Infections Program and University of Rochester Medical Center, Rochester, New York, USA
| | | | | | | | | | - Dale N Gerding
- Edward Hines, Jr. Veterans Affairs Hospital, Hines, Illinois, USA
| | - L Clifford McDonald
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Guh AY, Yi SH, Baggs J, Winston L, Parker E, Johnston H, Basiliere E, Olson D, Fridkin SK, Mehta N, Wilson L, Perlmutter R, Holzbauer SM, D’Heilly P, Phipps EC, Flores KG, Dumyati GK, Hatwar T, Pierce R, Ocampo VLS, Wilson CD, Watkins JJ, Korhonen L, Paulick A, Adamczyk M, Gerding DN, Reddy SC. Comparison of the Risk of Recurrent Clostridioides Difficile Infections Among Patients in 2018 Versus 2013. Open Forum Infect Dis 2022; 9:ofac422. [PMID: 36072699 PMCID: PMC9439575 DOI: 10.1093/ofid/ofac422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/12/2022] [Indexed: 03/29/2024] Open
Abstract
Among persons with an initial Clostridioides difficile infection (CDI) across 10 US sites in 2018 compared with 2013, 18.3% versus 21.1% had ≥1 recurrent CDI (rCDI) within 180 days. We observed a 16% lower adjusted risk of rCDI in 2018 versus 2013 (P < .0001).
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Affiliation(s)
- Alice Y Guh
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Sarah H Yi
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - James Baggs
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lisa Winston
- Department of Medicine, University of California San Francisco School of Medicine, San Francisco, California, USA
| | - Erin Parker
- California Emerging Infections Program, Oakland, California, USA
| | - Helen Johnston
- Colorado Department of Public Health and Environment, Denver, Colorado, USA
| | | | - Danyel Olson
- Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut, USA
| | - Scott K Fridkin
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Nirja Mehta
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Lucy Wilson
- Department of Emergency Health Services, University of Maryland Baltimore County, Baltimore, Maryland, USA
| | | | - Stacy M Holzbauer
- Minnesota Department of Health, St. Paul, Minnesota, USA
- Career Epidemiology Field Officer Program, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Paige D’Heilly
- Minnesota Department of Health, St. Paul, Minnesota, USA
| | - Erin C Phipps
- New Mexico Emerging Infections Program, University of New Mexico, Albuquerque, New Mexico, USA
| | - Kristina G Flores
- New Mexico Emerging Infections Program, University of New Mexico, Albuquerque, New Mexico, USA
| | - Ghinwa K Dumyati
- Department of Medicine, New York Emerging Infections Program and University of Rochester Medical Center, Rochester, New York, USA
| | - Trupti Hatwar
- Department of Medicine, New York Emerging Infections Program and University of Rochester Medical Center, Rochester, New York, USA
| | | | | | | | | | - Lauren Korhonen
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ashley Paulick
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Michelle Adamczyk
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Dale N Gerding
- Departments of Medicine and Research, Edward Hines, Jr. Veterans Affairs Hospital, Hines, Illinois, USA
| | - Sujan C Reddy
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Abstract
Device-quality copper and nickel films were deposited onto planar and etched silicon substrates by the reduction of soluble organometallic compounds with hydrogen in a supercritical carbon dioxide solution. Exceptional step coverage on complex surfaces and complete filling of high-aspect-ratio features of less than 100 nanometers width were achieved. Nickel was deposited at 60 degrees C by the reduction of bis(cyclopentadienyl)nickel and copper was deposited from either copper(I) or copper(II) compounds onto the native oxide of silicon or metal nitrides with seed layers at temperatures up to 200 degrees C and directly on each surface at temperatures above 250 degrees C. The latter approach provides a single-step means for achieving high-aspect-ratio feature fill necessary for copper interconnect structures in future generations of integrated circuits.
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Affiliation(s)
- J M Blackburn
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA 01003, USA
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Abstract
Alterations in the E-cadherin-mediated cell-cell adhesion pathway are commonly observed in urologic malignancies. This issue has been addressed most thoroughly in prostate cancer. Whereas both cadherin and catenin dysfunction have been seen in human prostate cancers, only down-regulation of E-cadherin has been shown for bladder cancer and renal-cell carcinoma. Although studies in bladder cancer and renal-cell carcinoma are less mature than studies in prostate cancer, they support the hypothesis that immunostaining for E-cadherin may be of significance for both diagnostic and prognostic purposes. Finally, the E-cadherin-mediated cell-cell adhesion pathway may represent a novel chemotherapeutic target for bladder cancer, prostate cancer, and renal-cell carcinoma. Obviously, more work lies ahead to translate these important observations from the bench to the bedside.
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Affiliation(s)
- R A Morton
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
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Hanger CC, Presson RG, Okada O, Janke SJ, Watkins JJ, Wagner WW, Capen RL. Computer determination of perfusion patterns in pulmonary capillary networks. J Appl Physiol (1985) 1997; 82:1283-9. [PMID: 9104866 DOI: 10.1152/jappl.1997.82.4.1283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Individual pulmonary capillaries are not steadily perfused. By using in vivo microscopy, it can readily be demonstrated that perfusion continually switches between capillary segments and between portions of the network within a single alveolar wall. These changes in capillary perfusion occur even when upstream pressure and flow are constant. Flow switching between capillary segments in the absence of hemodynamic changes in large upstream vessels suggests that capillary perfusion patterns could be random. To calculate the probability that perfusion patterns could occur by chance, it is necessary to know the total number of possible perfusion patterns in a given capillary network. We developed a computer program that can determine every possible perfusion pattern for any given capillary network, and from that information we can calculate whether perfusion of individual segments in the network is random. With the results of the computer program, we have obtained statistical evidence that some capillary segments in a network are nonrandomly perfused.
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Affiliation(s)
- C C Hanger
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis 46202, USA
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Abstract
PURPOSE Under normal conditions genomic CpG islands are not methylated. Hypermethylation of a CpG island in the 5' regulatory region of a gene has the capacity to silence gene transcription. Recently, hypermethylation of a CpG island at D17S5 on chromosome 17P13.3 has been shown to be a frequent tumor-specific event. When it has been observed, hypermethylation of D17S5 occurs solely in neoplastic tissues. Consequently, it has been hypothesized that hypermethylation of D17S5 may be an important carcinogenic event in the organs in which it occurs (colon, kidney, and brain). In this study we examine D17S5 hypermethylation in DNA from the prostate, a gland which is unique in that it undergoes hyperplastic or neoplastic growth or both in virtually all aging men. MATERIALS AND METHODS The methylation sensitive restriction enzyme Notl, a cDNA probe specific for the D17S5 locus, and Southern blotting were used to assay for hypermethylation of D17S5 in DNA derived from normal, benign hyperplastic and malignant prostate tissues. RESULTS We find that methylation of Notl restriction sites at D17S5 is a very common occurrence in prostate cancers (25 of 26 cases examined). Surprisingly, we found that methylation of these sites at D17S5 also occurred in histologically normal prostate and benign hyperplastic (BPH) tissue from glands which both did and did not contain cancer. In contrast, seminal vesicle, an androgen-dependent male sex accessory tissue that rarely undergoes pathological overgrowth, was devoid of hypermethylation at this locus. CONCLUSIONS. These data demonstrate that hypermethylation of D17S5 is a tissue-specific event in prostate DNA, and we hypothesize that methylation of this and/or related loci may play a role in the extreme predilection of this gland to neoplastic growth.
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Affiliation(s)
- R A Morton
- James Buchanan Brady Institute of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Watkins JJ. Unusual radiographic findings from orthopantomograms: 2 case reports. J Dent 1977; 5:327-30. [PMID: 272372 DOI: 10.1016/0300-5712(77)90125-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Watkins JJ, Andlaw RJ. Restoration of fractured incisors with an ultra-violet light-polymerised composite resin. A clinical study. Br Dent J 1977; 142:249-52. [PMID: 265712 DOI: 10.1038/sj.bdj.4803900] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Watkins JJ. Pathological gemination of second and third upper molars. Probe (Lond) 1973; 15:250 passim. [PMID: 4521196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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