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McCarter S, Feemster J, Tabatabai G, Sandness D, Timm P, McCarter A, Talley H, Johnson K, Savica R, Vemuri P, Mielke M, Machulda M, Kantarci K, Singer W, Coon E, Josephs K, Boeve B, Silber M, St. Louis E. Diagnostic yield of rem sleep muscle activity for presumed synucleinopathy neurodegeneration. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Feldsine PT, Green ST, Lienau AH, Stephens J, Jucker MT, Kerr DE, Bark D, Belousov YS, Benish B, Brillhart DE, Camacho A, Deans A, Douangmala A, Forgey; R, Grant M, Gringer G, Hunsucker JC, Hyunh P, Johnson K, Lockhart LD, Luebbert B, Metcalf M, Moser R, Norris C, Oostra K, Pickett JL, Potter L, Roa N, Solano S, Tuncan E, Vrana D, Wilson J. Evaluation of the Assurance GDS™ for E. coli O157:H7 Method and Assurance GDS for Shigatoxin Genes Method in Selected Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/88.5.1334] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
A multilaboratory collaborative study was conducted to compare the Assurance GDS™ for E. coli O157:H7 method and the reference culture methods for the detection of E. coli O157:H7 in orange juice, raw ground beef, and fresh lettuce. A separate companion assay, the Assurance GDS for Shigatoxin Genes method was also evaluated with the same test portions. Fifteen laboratories participated in the study. A Chi square analysis of each of the 3 food types at the high, low, and uninoculated control levels was performed. For all foods, the Assurance GDS for E. coli O157:H7 method and the Assurance GDS for Shigatoxin Genes method were equivalent to or better than the reference methods.
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Feldsine PT, Kerr DE, Leung SC, Lienau AH, Moser RF, Mui LA, Anderson G, Beasley M, Clements S, Dillon J, Dombroski P, Forgey R, Gartside S, Hernandez C, Hopkins S, Johnson K, Meier J, Nguyen T, Ortega R, Reynolds J, Smith J, Solis D, Summers C, Terry J, Tuncan E, Vrana D, Warren W, Wood S. Visual Immunoprecipitate Assay Eight Hour Method for Detection of Enterohemorrhagic Escherichia coli O157:H7 in Raw and Cooked Beef (Modification of AOAC Official Method 996.09): Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.5.1029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
AOAC Official Method 996.09, Visual Immunoprecipitate Assay (VIP®) for Escherichia coli O157:H7, was modified to incorporate a new enrichment protocol using BioControl EHEC8™ medium for testing raw and cooked beef. Foods were tested by VIP assay and the U.S. Department of Agriculture/Food Safety and Inspection Service (USDA/FSIS) enrichment procedure and the FDA Bacteriological Analytical Manual (BAM) isolation and confirmation techniques. A total of 15 collaborators participated. Raw and cooked ground beef were inoculated with E. coli O157:H7 at 2 different levels: a high level, where predominantly positive results were expect d, and a low level where fractional recovery was anticipated. Collaborators tested 396 test portions and controls by both methods, for a total of 792 test portions. Of the 396 paired test portions, 75 were positive and 230 were negative by both the VIP and culture methods. Eleven test portions were presumptively positive by VIP and could not be confirmed culturally; 32 were negative by VIP, but confirmed positive by culture; and 65 were negative by the culture method, but confirmed positive by the VIP method. There was no statistical difference between results obtained with the VIP for EHEC 8 h method and the culture method except for cooked beef, where the VIP had significantly higher recovery for one inoculation level.
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Feldsine PT, Kerr DE, Leung SC, Lienau AH, Miller SM, Mui LA, Anderson G, Beasley M, Dillon J, Dombroski P, Forgey R, Hernandez C, Hopkins S, Johnson K, Meier J, Nguyen T, Ortega R, Reynolds J, Smith J, Solis D, Summers C, Terry J, Tuncan E, Vrana D, Warren W, Wood S. Assurance® Enzyme Immunoassay Eight Hour Method for Detection of Enterohemorrhagic Escherichia coli O157:H7 in Raw and Cooked Beef (Modification of AOAC Official Method 996.10): Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.5.1037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
AOAC Official Method 996.10, Assurance® Enzyme Immunoassay (EIA) for Escherichia coli O157:H7 (EHEC), was modified to incorporate a new enrichment protocol using BioControl EHEC8™ medium for testing raw and cooked beef. Foods were tested by EIA and the U.S. Department of Agriculture/Food Safety and Inspection Service (USDA/FSIS) enrichment conditions and the FDA Bacteriological Analytical Manual (BAM) isolation and confirmation techniques. A total of 14 collaborators participated. Raw and cooked ground beef were inoculated with E. coli O157:H7 at 2 different levels: a high level where predominantly positive results were expected, and a low level where fractional recovery was anticipated. Collaborators tested 378 test portions and controls by both the 8 h EIA and the USDA/FSIS enrichment methods, for a total of 756 test portions. Of the 378 paired test portions, 75 were positive and 212 were negative by both methods. Thirteen test portions were presumptively positive by EIA and could not be confirmed culturally; 30 were negative by EIA, but confirmed positive by culture; and 65 were negative by the culture method, but confirmed positive by the EIA method. There was no statistical difference between results obtained with the Assurance EIA for EHEC 8 h method and the culture method for raw ground beef. The Assurance EIA had a significantly higher recovery for cooked beef.
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Lindberg KG, Lindberg KG, Kinneberg KM, Lindberg KG, Batterson D, Bobb R, Boleszczuk P, Brudvig S, Bryant D, Bryce J, Buckner K, Bulthaus M, DeJesus J, Ellis K, Finkenbiner D, Fleming S, Follni-Lieder E, Harper C, Ihrke P, Johnson K, King J, Langridge M, Maycock L, McAteer L, McCann T, Otten N, Robbins R, Sass A, Saunders L, Schop R, Strand S, Tebay D, VanWinkle J, Wolowski C. Dry Rehydratable Film Method for Rapid Enumeration of Coliforms in Foods (3M™ Petrifilm™ Rapid Coliform Count Plate): Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.1.56] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A rehydratable dry-film plating method for coliforms in foods, the 3M™ Petrifilm™ Rapid Coliform Count plate method, was compared with the U.S. Food and Drug Administration's Bacteriological Analytical Manual method for nondairy foods and the American Public Health Association's Standard Methods for the Examination of Dairy Products (SMEDP) method for dairy foods. Six food types, vanilla ice cream, cheddar cheese, fresh refrigerated uncooked pasta, wheat flour, prepared frozen macaroni and cheese, and frozen hash browns, were analyzed for coliforms by 11 collaborating laboratories. For each food product tested, the collaborators received 8 blind samples consisting of a control sample and 3 levels of inoculated sample, each in duplicate. The mean log counts for the methods were comparable. The repeatability and reproducibility variances of the Petrifilm Rapid Coliform Count method at 14 and 24 h were not significantly different from those of the standard methods.
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Silbernagel KM, Jechorek RP, Carver CN, Horter BL, Lindberg KG, Aleo V, Anderson G, Bannach B, Bulthaus M, Cha K, Dixon K, Hemming B, Horter B, Iannucci; M, Johnson A, Johnson K, Kaufer A, Kemp S, King J, Kupski B, Kusch S, Luebbert B, Lyke H, Makepeace; C, Otten N, Schomogy T, Strand S, Xiong C. 3M™ Petrifilm™ Staph Express Count Plate Method for the Enumeration of Staphylococcus aureus in Selected Dairy Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.5.963] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The 3M™ Petrifilm™ Staph Express Count plate method was compared with AOAC Official Method 975.55 for the enumeration of Staphylococcus aureus in selected foods. Five foods—ice cream, raw milk, yogurt, whey powder, and cheese—were analyzed for S. aureus by 12 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample, a low inoculation level, a medium inoculation level, and a medium inoculation level with background flora, each in duplicate. The mean log10 counts for the methods were comparable for all 5 foods. The repeatability and reproducibility variances of the 24 h Petrifilm Staph Express Count plate method were similar to those of the 72 h standard method.
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Silbernagel KM, Lindberg KG, Ary M, Bannach B, Barbour M, Battista K, Bauten H, Beatty S, Bogar S, Buczek L, Bulthau M, Burnett T, Carver C, Cha K, Cooper L, D’Andrea L, Davis B, Fain A, Feiler B, Fender M, Hirt W, Iannucci M, Jackson JK, Jensen D, Johnson K, Julien-Davis G, Kempf A, Krone P, Kusch S, LaPointe A, Leiva BR, Lewandowski V, Lewis J, Maycock L, Mebs D, McCann T, Moulsoff M, Newcomer C, Ooya M, O’Shea P, Otten N, Reed J, Remes A, Resutek J, Rukamp B, Rukamp S, Saito A, Shafie A, Smith A, Tabatt J, Tanaka H, Torrance H, VandeVoort M, Wang D, Windsor S, Xiong Y, Zebchuck A. Petrifilm™ Rapid S. aureus Count Plate Method for Rapid Enumeration of Staphylococcus aureus in Selected Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.5.1431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A rehydratable dry-film plating method for Staphylococcus aureusin foods, the 3M™ Petrifilm™ Rapid S. aureus Count Plate method, was compared with AOAC® Official MethodSM 975.55 (Staphylococcus aureus in Foods). Nine foods—instant nonfat dried milk, dry seasoned vegetable coating, frozen hash browns, frozen cooked chicken patty, frozen ground raw pork, shredded cheddar cheese, fresh green beans, pasta filled with beef and cheese, and egg custard—were analyzed for S. aureus by 13 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample and 3 levels of inoculated test sample, each in duplicate. The mean log counts for the methods were comparable for pasta filled with beef and cheese; frozen hash browns; cooked chicken patty; egg custard; frozen ground raw pork; and instant nonfat dried milk. The repeatability and reproducibility variances of the Petrifilm Rapid S. aureus Count Plate method were similar to those of the standard method.
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Feldsine PT, Mui LA, Forgey RL, Kerr DE, Al-Hasani S, Arling V, Beatty S, Bohannon J, Brannan J, Brown N, Bryant J, Burford M, Chavez C, Chinault K, Cooan N, Copeland F, Dixon L, Fitzgerald S, Franke W, Frissora R, Gailbreath K, Godon S, Good M, Ha T, Hagen H, Hanson S, Johnson K, Koch S, Leung S, Lienau A, Lin J, Lin S, Marolla B, Maycock L, McDonagh S, Miller L, Otten N, Post R, Resutek J, Rice B, Richter D, Ritger C, Schwantes D, Simon J, Smith J, Smith S, Stokes R, Thibideau J, Tuncan E, Uber D, Van Landingham V, Vrana D, West D. Equivalence of Assurance® Gold Enzyme Immunoassay for Visual or Instrumental Detection of Motile and Nonmotile Salmonella in All Foods to AOAC Culture Method: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/83.4.871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Six foods representative of a wide variety of processed, dried powder processed, and raw food types were analyzed by the Assurance® Gold Salmonella Enzyme Immunoassay (EIA) and AOAC INTERNATIONAL culture method. Paired samples of each food type were simultaneously analyzed; one sample by the Assurance method and one by the AOAC culture method. The results for Assurance method were read visually and instrumentally with a microplate reader. A total of 24 laboratories representing federal government agencies and private industry, in the United States and Canada, participated in this collaborative study. Food types were inoculated with species of Salmonella with the exception of raw ground chicken, which was naturally contaminated. No statistical differences (p < 0.05) were observed between Assurance Gold Salmonella EIA with either visual or instrumental interpretation and the AOAC culture method for any inoculation level of any food type or naturally contaminated food. The Assurance visual and instrumental options of reading sample reactions produced the same results for 1277 of the 1296 sample and controls analyzed.
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Smith CR, Kershaw T, Johnson K, Meghnath K. An outbreak of hepatitis A in Canada: The use of a control bank to conduct a case-control study. Epidemiol Infect 2019; 147:e300. [PMID: 31711553 PMCID: PMC6873153 DOI: 10.1017/s0950268819001870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/24/2019] [Accepted: 10/13/2019] [Indexed: 01/07/2023] Open
Abstract
An outbreak of 18 cases of hepatitis A virus infection across five Canadian provinces was investigated. Case onsets occurred between October 2017 and May 2018. A retrospective matched case-control study was conducted to identify the likely source of the outbreak. Three matched controls were recruited for each case using a previously established control bank, supplemented by landline and cell phone call lists. Univariate and multivariate matched analyses were conducted to identify a potential outbreak source. Seventy-two per cent of controls were recruited through the control bank, and required on average 25.5 calls per recruited control; 20% of controls were recruited through a landline sample and 8% of controls were recruited through a cell phone sample, requiring an average of 847.3 and 331.7 calls per recruited control, respectively. Results of the analysis pointed to shrimp/prawns (odds ratio (OR) 15.75, p = 0.01) and blackberries (OR 7.21, p = 0.02) as foods of interest, however, an outbreak source could not be confirmed. The control bank proved to be a more efficient method for control recruitment than random call lists. Expanding the control bank size and using alternative methods, such as online surveys, may prove beneficial for increasing the timeliness of a case-control study during an outbreak investigation.
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Gartrell BD, Ahn JY, Khude R, Dougherty N, Johnson K, McCutchan J, Clarke A, Hunter S. Thermal burns of the spectacle associated with supplementary heating in native New Zealand geckos. N Z Vet J 2019; 68:126-133. [PMID: 31608795 DOI: 10.1080/00480169.2019.1674747] [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: 10/25/2022]
Abstract
Case history: Gradual onset of ocular opacity was observed in three gold-striped geckos (Woodworthia chrysosiretica), and five Pacific geckos (Dactylocnemis pacificus) held in two adjacent terrariums in a zoological institution located in the North Island of New Zealand. Ultraviolet light and heat had been provided for the previous 3-4 years by a fluorescent bulb, but in the last 4 weeks of winter a ceramic heat bulb had been added, situated 10 cm above the upper mesh of the cageClinical findings: All eight geckos presented with mostly bilateral lesions of varying severity confined to the central or upper quadrant of the spectacles. These lesions ranged from variable areas of opacity within the stroma of the spectacle to similarly distributed ulcers of the surface epithelium of both spectacles. The spectacle lesions in the Pacific geckos responded well to treatment with topical combined antimicrobial therapy, within 18-29 days. The gold-striped geckos suffered complications including dysecdysis, severe spectacle ulceration and perforation, mycotic spectaculitis, and widespread mycotic dermatitis resulting in death or leading to euthanasia.Pathological findings: In the three gold-striped geckos, there were extensive areas of deep ulceration and replacement of the spectacle with a thick serocellular crust containing large numbers of fungal elements. The affected areas of the stroma were expanded by large deposits of proteinaceous and mucinous material, pyknotic cellular debris and moderate numbers of heterophils and macrophages as well as infiltrating fungal hyphae.Diagnosis: Mycotic spectaculitis with ulceration and perforation, and disseminated mycotic dermatitis likely secondary to thermal burns.Clinical relevance: This is the first report of thermal burns of the spectacle in any reptile. There was species variation in the burn severity with gold-striped geckos showing more severe lesions, possibly due to a mix of behavioural and anatomical factors. The thermal burns to the spectacles in three cases were complicated by delayed healing, perforation, dysecdysis and severe mycotic infection.
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Kölbel H, Roos A, Nolte K, Johnson K, Töpf A, Kollipara L, Kress W, van der Ven P, Straub V, Weis J, Fürst D, Schara U. P.82First clinical and neuropathological description of a myofibrillar myopathy with congenital onset based on a homozygous recessive FLNC mutation. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Topf A, Johnson K, Mroczek M, Phillips L, Duff J, Valkanas E, England E, MacArthur D, Straub V, MYO-SEQ consortium. E-POSTERS – NEXT GENERATION SEQUENCING. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Topf A, Casasus A, Barresi R, Johnson K, Mroczek M, Duff J, Phillips L, England E, Xu L, Valkanas E, MacArthur D, Straub V, MYO-SEQ consortium. P.175Detection and interpretation of variants in dystroglycanopathy-causing genes in a cohort of 1,566 patients with unexplained limb-girdle muscle weakness. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rampakakis E, Monsanto H, Stutz M, Psaradellis E, Mejia G, Carillo A, Zapata-Cardenas A, Molina D, Molina de Salazar D, Pradilla Vesga O, Beltran-Rodriguez C, Johnson K. PIN18 BURDEN OF ILLNESS OF HERPES ZOSTER IN COLOMBIA: AN OBSERVATIONAL STUDY. Value Health Reg Issues 2019. [DOI: 10.1016/j.vhri.2019.08.249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Piccoli L, Lee D, Stahlman B, Johnson K. 205 Seasonal Variation in Pediatric Behavioral Health Presentations to a Community Emergency Department. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lavu EK, Johnson K, Banamu J, Pandey S, Carter R, Coulter C, Aia P, Majumdar SS, Marais BJ, Graham SM, Vince J. Drug-resistant tuberculosis diagnosis since Xpert ® MTB/RIF introduction in Papua New Guinea, 2012-2017. Public Health Action 2019; 9:S12-S18. [PMID: 31579644 PMCID: PMC6735453 DOI: 10.5588/pha.19.0005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 04/01/2019] [Indexed: 11/10/2022] Open
Abstract
SETTING Xpert® MTB/RIF was introduced in Papua New Guinea in 2012 for the diagnosis of tuberculosis (TB) and of rifampicin-resistant TB (RR-TB), a marker of multi-drug-resistant TB (MDR-TB). OBJECTIVE To assess the concordance of Xpert with phenotypic drug susceptibility testing (DST) performed at the supranational reference laboratory and to describe the patterns of drug-resistant TB observed. DESIGN This was a retrospective descriptive study of laboratory data collected from April 2012 to December 2017. RESULTS In 69 months, 1408 specimens with Xpert results were sent for mycobacterial culture and DST; Mycobacterium tuberculosis was cultured from 63% (884/1408) and DST was completed in 99.4%. The concordance between Xpert and culture for M. tuberculosis detection was 98.6%. Of 760 RR-TB cases, 98.7% were detected using Xpert; 98.5% of 620 MDR-TB cases were identified using phenotypic DST. Phenotypic resistance to second-line drugs was detected in 59.4% (522/879) of specimens tested, including 29 with fluoroquinolone resistance; the majority were from the National Capital District and Daru Island. CONCLUSION The high concordance between phenotypic DST and Xpert in identifying RR-TB cases supports the scale-up of initial Xpert testing in settings with high rates of drug resistance. However, rapid DST in addition to the detection of RR-TB is required.
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Banamu JK, Lavu E, Johnson K, Moke R, Majumdar SS, Takarinda KC, Commons RJ. Impact of GxAlert on the management of rifampicin-resistant tuberculosis patients, Port Moresby, Papua New Guinea. Public Health Action 2019; 9:S19-S24. [PMID: 31579645 DOI: 10.5588/pha.18.0067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 10/23/2018] [Indexed: 11/10/2022] Open
Abstract
Setting GxAlert is an automatic electronic notification service that provides immediate Xpert® MTB/RIF testing results. It was implemented for the notification of patients with rifampicin resistant-tuberculosis (RR-TB) at Port Moresby General Hospital, Port Moresby, Papua New Guinea, in May 2015. Objective To determine if there were differences in pre-treatment attrition, the time to treatment initiation and patient outcomes in the 12 months pre- and post-introduction of GxAlert for RR-TB patients. Design This was a retrospective cohort study. Results The median time from Xpert testing to treatment initiation decreased from 35 days [IQR 13-131] prior to GxAlert to 10 days [IQR 3-29] after GxAlert (P = 0.001), with the cumulative proportion of patients initiating treatment within 30 days increasing from 25% (95%CI 17-37) to 54% (95%CI 44-64; P < 0.001) over these periods. However, our analysis of the time to treatment prior to the introduction of GxAlert suggests that a decrease had already occurred prior to implementation. There was no difference in interim clinical outcomes between the periods. Conclusion Although a decrease in time to treatment initiation cannot be attributed to GxAlert, there was a significant improvement over the 2-year period, suggesting that considerable improvements have been made in timely RR-TB patient management in Port Moresby.
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Oeser C, Aarons E, Heath P, Johnson K, Khalil A, Knight M, Lynn RM, Morgan D, Pebody R. Surveillance of congenital Zika syndrome in England and Wales: methods and results of laboratory, obstetric and paediatric surveillance. Epidemiol Infect 2019; 147:e262. [PMID: 31481135 PMCID: PMC6805733 DOI: 10.1017/s0950268819001535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/06/2019] [Indexed: 11/06/2022] Open
Abstract
The spread of the Zika virus (ZIKV) in the Americas led to large outbreaks across the region and most of the Southern hemisphere. Of greatest concern were complications following acute infection during pregnancy. At the beginning of the outbreak, the risk to unborn babies and their clinical presentation was unclear. This report describes the methods and results of the UK surveillance response to assess the risk of ZIKV to children born to returning travellers. Established surveillance systems operating within the UK - the paediatric and obstetric surveillance units for rare diseases, and national laboratory monitoring - enabled rapid assessment of this emerging public health threat. A combined total of 11 women experiencing adverse pregnancy outcomes after possible ZIKV exposure were reported by the three surveillance systems; five miscarriages, two intrauterine deaths and four children with clinical presentations potentially associated with ZIKV infection. Sixteen women were diagnosed with ZIKV during pregnancy in the UK. Amongst the offspring of these women, there was unequivocal laboratory evidence of infection in only one child. In the UK, the number and risk of congenital ZIKV infection for travellers returning from ZIKV-affected countries is very small.
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Johnson K, Leciejewski L, Munguia N. The Importance of Nutrition Post-Discharge Interventions. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.06.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sheffer J, Bergman E, Chang L, Ho W, Ivanova D, Johnson K, Kossack M. Roundtable Discussion: Early Research into the Operational Context of Device Use Is Needed. Biomed Instrum Technol 2019; 53:290-296. [PMID: 31343927 DOI: 10.2345/0899-8205-53.4.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wilcox M, Brown H, Johnson K, Sinisi M, Quick TJ. An assessment of fatigability following nerve transfer to reinnervate elbow flexor muscles. Bone Joint J 2019; 101-B:867-871. [PMID: 31256676 DOI: 10.1302/0301-620x.101b7.bjj-2019-0005.r1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Improvements in the evaluation of outcomes following peripheral nerve injury are needed. Recent studies have identified muscle fatigue as an inevitable consequence of muscle reinnervation. This study aimed to quantify and characterize muscle fatigue within a standardized surgical model of muscle reinnervation. PATIENTS AND METHODS This retrospective cohort study included 12 patients who underwent Oberlin nerve transfer in an attempt to restore flexion of the elbow following brachial plexus injury. There were ten men and two women with a mean age of 45.5 years (27 to 69). The mean follow-up was 58 months (28 to 100). Repeated and sustained isometric contractions of the elbow flexors were used to assess fatigability of reinnervated muscle. The strength of elbow flexion was measured using a static dynamometer (KgF) and surface electromyography (sEMG). Recordings were used to quantify and characterize fatigability of the reinnervated elbow flexor muscles compared with the uninjured contralateral side. RESULTS The mean peak force of elbow flexion was 7.88 KgF (sd 3.80) compared with 20.65 KgF (sd 6.88) on the contralateral side (p < 0.001). Reinnervated elbow flexor muscles (biceps brachialis) showed sEMG evidence of fatigue earlier than normal controls with sustained (60-second) isometric contraction. Reinnervated elbow flexor muscles also showed a trend towards a faster twitch muscle fibre type. CONCLUSION The assessment of motor outcomes must involve more than peak force alone. Reinnervated muscle shows a shift towards fast twitch fibres following reinnervation with an earlier onset of fatigue. Our findings suggest that fatigue is a clinically relevant characteristic of reinnervated muscle. Adoption of these metrics into clinical practice and the assessment of outcome could allow a more meaningful comparison to be made between differing forms of treatment and encourage advances in the management of motor recovery following nerve transfer. Cite this article: Bone Joint J 2019;101-B:867-871.
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Smith L, Hughes D, Chan HF, Johnson K, Bray J, Rodgers O, Collier G, Norquay G, Biancardi A, Hughes P, Kotecha S, Wildman M, West N, Horsley A, Marshall H, Wild J. WS17-2 The sensitivity of MRI to detect both functional and structural lung abnormalities in sub-clinical cystic fibrosis. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30218-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oates A, Halliday K, Offiah AC, Landes C, Stoodley N, Jeanes A, Johnson K, Chapman S, Stivaros SM, Fairhurst J, Watt A, Paddock M, Giles K, McHugh K, Arthurs OJ. Shortage of paediatric radiologists acting as an expert witness: position statement from the British Society of Paediatric Radiology (BSPR) National Working Group on Imaging in Suspected Physical Abuse (SPA). Clin Radiol 2019; 74:496-502. [PMID: 31126587 DOI: 10.1016/j.crad.2019.04.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 04/12/2019] [Indexed: 11/29/2022]
Abstract
One of the most challenging areas of radiological imaging in children is the diagnosis of physical abuse. There is a dearth of paediatric radiologists willing to act as expert witnesses, particularly in the family courts. There are a number of reasons why radiologists may not be interested or willing to put themselves forward to work as expert witnesses in this field. A group of imaging experts recently formed the "British Society of Paediatric Radiology (BSPR) Working Group on Imaging in Suspected Physical Abuse (SPA)". The group comprises radiologists and neuroradiologists with current or previous experience of providing expert witness reports to the court in cases of SPA. The group met in January 2019 to explore pragmatic solutions to the chronic inefficiencies in both medical and legal practices and the challenges that arise from working in a legal arena with different structures, goals, and assessment criteria. Key issues concerned organisational inefficiencies, variable support from National Health Service Trusts and the Royal College of Radiologists to conduct this work, and the risk/benefit of involvement. This work is important for the patient, parents, and society in general, and highly rewarding for clinical practitioners who are involved, but there are several issues with current practices that discourage active participation. With several members of the group either retired or close to retirement, the shortage of experts is becoming a pressing issue within the UK, which requires an engaged multidisciplinary group to come up with creative solutions. Here, the group provide a consensus opinion highlighting the current barriers and potential facilitators to increasing the number of radiologists willing to provide opinions to the court.
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Cella D, Traina S, Li T, Johnson K, Ho KF, Molina A, Shore ND. Relationship between patient-reported outcomes and clinical outcomes in metastatic castration-resistant prostate cancer: post hoc analysis of COU-AA-301 and COU-AA-302. Ann Oncol 2019; 29:392-397. [PMID: 29237083 DOI: 10.1093/annonc/mdx759] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background Patient-reported outcomes (PROs) are used to assess benefit-risk in drug development. The relationship between PROs and clinical outcomes is not well understood. We aim to elucidate the relationships between changes in PRO measures and clinical outcomes in metastatic castration-resistant prostate cancer (mCRPC). Patients and methods We investigated relationships between changes in self-reported fatigue, pain, functional well-being (FWB), physical well-being (PWB) and prostate cancer-specific symptoms with overall survival (OS) and radiographic progression-free survival (rPFS) after 6 and 12 months of treatment in COU-AA-301 (N = 1195) or COU-AA-302 (N = 1088). Eligible COU-AA-301 patients had progressed after docetaxel and had Eastern Cooperative Oncology Group performance status (ECOG PS) ≤ 2. Eligible COU-AA-302 patients had no prior chemotherapy and ECOG PS 0 or 1. Patients were treated with abiraterone acetate (1000 mg/day) plus prednisone (10 mg/day) or prednisone alone daily. Association between self-reported fatigue, pain and functional status, and OS and/or rPFS, using pooled data regardless of treatment, was assessed. Cox proportional hazard regression modeled time to death or radiographic progression. Results In COU-AA-301 patients, PRO improvements were associated with longer OS and longer time to radiographic progression versus worsening or stable PROs (P < 0.0001). In multivariate models, all except pain intensity remained associated with OS. Pain intensity, PWB and FWB improvements remained associated with rPFS. In COU-AA-302 patients, worsening PROs were associated with higher likelihood of radiographic progression (P ≤ 0.025) compared with improved or stable PROs. In multivariate models, worsening PWB remained associated with worse rPFS. The 12-month analysis confirmed the 6-month results. Conclusions PROs are significantly associated with clinically relevant time-to-event efficacy outcomes in clinical trials and may complement and help predict traditional clinical practice methods for monitoring patients for disease progression.
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Watanabe Y, Healey A, Scott M, Lavery S, Johnson K, Mills C, Galasso M, Chen M, Yeung J, Donahoe L, Pierre A, de Perrot M, Yasufuku K, Waddell T, Keshavjee S, Cypel M. Initial Experience with Non-Perfused Organ Donors for Lung Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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