LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 25

Search options

  1. Article ; Online: Fusobacterium necrophorum an Underrecognized Cause of Petrous Apicitis Presenting with Gradenigo Syndrome: A Case Report.

    Ibrahim, Zaid / Fox-Lewis, Shivani / Correia, Jason A

    The American journal of case reports

    2024  Volume 25, Page(s) e942652

    Abstract: BACKGROUND With the advent of antibiotics, petrous apicitis (PA), inflammation of the petrous temporal bone, has become a rare complication of otitis media. Even more uncommon is Gradenigo syndrome (GS), a result of PA, characterized by a triad of otitis ...

    Abstract BACKGROUND With the advent of antibiotics, petrous apicitis (PA), inflammation of the petrous temporal bone, has become a rare complication of otitis media. Even more uncommon is Gradenigo syndrome (GS), a result of PA, characterized by a triad of otitis media or purulent otorrhea, pain within the regions innervated by the first and second division of the trigeminal nerve, and ipsilateral abducens nerve palsy. Recent literature has demonstrated increasing reports of Fusobacterium necrophorum isolated in cases of GS. CASE REPORT A 21-year-old man presented with otalgia, reduced hearing, and severe headache. Examination revealed right-sided purulent otorrhea, anesthesia within the trigeminal nerve distribution, and an ipsilateral abducens nerve palsy. F. necrophorum was isolated from an ear swab and a blood culture. Computed tomography and magnetic resonance imaging (MRI) demonstrated otomastoiditis, PA, cavernous sinus thrombosis, and severe stenosis of the petrous internal carotid artery. He was treated with intravenous benzylpenicillin, underwent a mastoidectomy and insertion of a ventilation tube, and was started on a 3-month course of dabigatran. Interval MRI showed improved internal carotid artery caliber, persistent petrous apex inflammation, and normal appearance of both cavernous sinuses. Follow-up clinical review noted persistent abducens and trigeminal nerve dysfunction. CONCLUSIONS We identified 190 cases of PA; of these, 80 presented with the classic Gradenigo triad. Fusobacterium sp. were cultured in 10% of GS cases, making them the most frequent isolates. Due to the fastidious nature of F. necrophorum, it may be underrepresented in the historical literature, and we recommend that empiric antibiotics cover anaerobic organisms.
    MeSH term(s) Male ; Humans ; Young Adult ; Adult ; Petrositis/complications ; Fusobacterium necrophorum ; Otitis Media/complications ; Abducens Nerve Diseases/complications ; Abducens Nerve Diseases/diagnosis ; Inflammation ; Anti-Bacterial Agents/therapeutic use
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2024-02-06
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 2517183-5
    ISSN 1941-5923 ; 1941-5923
    ISSN (online) 1941-5923
    ISSN 1941-5923
    DOI 10.12659/AJCR.942652
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Increasing isolation of non-toxigenic Corynebacterium diphtheriae in Aotearoa New Zealand.

    Fox-Lewis, Shivani / Muttaiyah, Sharmini / Roberts, Sally

    The New Zealand medical journal

    2023  Volume 136, Issue 1585, Page(s) 112–115

    MeSH term(s) Humans ; Corynebacterium diphtheriae ; New Zealand
    Language English
    Publishing date 2023-11-10
    Publishing country New Zealand
    Document type Letter
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Candida auris: lessons learnt from the first detected case in Aotearoa New Zealand.

    Fox-Lewis, Shivani / Buckwell, Leanne / McKinney, Wendy / Tang, Ruishan / Upton, Graham / Francis, Bindu / Roberts, Sally

    The New Zealand medical journal

    2023  Volume 136, Issue 1580, Page(s) 78–80

    MeSH term(s) Humans ; Candida auris ; New Zealand ; Antifungal Agents/therapeutic use ; Microbial Sensitivity Tests
    Chemical Substances Antifungal Agents
    Language English
    Publishing date 2023-08-04
    Publishing country New Zealand
    Document type Case Reports
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: A case of prolonged SARS-CoV-2 viral shedding for 150 days.

    Fox-Lewis, Andrew / Fox-Lewis, Shivani / Hotu, Sandra / Roberts, Sally / McAuliffe, Gary / De Almeida, Mary

    The New Zealand medical journal

    2021  Volume 134, Issue 1542, Page(s) 134–136

    MeSH term(s) COVID-19/therapy ; Hospitalization ; Humans ; New Zealand ; SARS-CoV-2/pathogenicity ; Virus Shedding
    Language English
    Publishing date 2021-09-17
    Publishing country New Zealand
    Document type Case Reports
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Lack of N2-gene amplification on the Cepheid Xpert Xpress SARS-CoV-2 assay and potential novel causative mutations: A case series from Auckland, New Zealand.

    Fox-Lewis, Shivani / Fox-Lewis, Andrew / Harrower, Jay / Chen, Richard / Wang, Jing / de Ligt, Joep / McAuliffe, Gary / Taylor, Susan / Smit, Erasmus

    IDCases

    2021  Volume 25, Page(s) e01233

    Abstract: We describe three cases with viral strains that demonstrate impaired N2-gene detection on the Cepheid Xpert Xpress SARS-CoV-2 assay, with two previously undescribed single nucleotide polymorphisms (SNPs): C29197T and G29227T. We propose that these SNPs ... ...

    Abstract We describe three cases with viral strains that demonstrate impaired N2-gene detection on the Cepheid Xpert Xpress SARS-CoV-2 assay, with two previously undescribed single nucleotide polymorphisms (SNPs): C29197T and G29227T. We propose that these SNPs are likely responsible since they are in close proximity to the previously described C29200T/C29200A SNPs, already shown to abolish N2-gene detection by the Xpert assay. Whether these SNPs abolish N2-gene detection by the Xpert assay individually or only in combination requires more work to elucidate.
    Language English
    Publishing date 2021-07-24
    Publishing country Netherlands
    Document type Case Reports
    ZDB-ID 2745454-X
    ISSN 2214-2509
    ISSN 2214-2509
    DOI 10.1016/j.idcr.2021.e01233
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: An understanding of discordant SARS-CoV-2 test results: an examination of the data from a central Auckland laboratory.

    Fox-Lewis, Shivani / Muttaiyah, Sharmini / Rahnama, Fahimeh / McAuliffe, Gary / Roberts, Sally

    The New Zealand medical journal

    2020  Volume 133, Issue 1519, Page(s) 81–88

    Abstract: Aim: The diagnostic sensitivity of the SARS-CoV-2 real time reverse transcription polymerase chain reaction (RT-PCR) test has not been determined. This has led to a degree of uncertainty in the interpretation of results, particularly in patients tested ... ...

    Abstract Aim: The diagnostic sensitivity of the SARS-CoV-2 real time reverse transcription polymerase chain reaction (RT-PCR) test has not been determined. This has led to a degree of uncertainty in the interpretation of results, particularly in patients tested repeatedly. The aim of this study was to explore the characteristics of patients who initially tested negative, and subsequently tested positive for SARS-CoV-2.
    Methods: This retrospective observational study utilised data from the LabPlus Virology laboratory, Auckland City Hospital, to identify cases (hospital and community) with initial negative and subsequent positive SARS-CoV-2 RT-PCR results. Their clinical and laboratory characteristics were summarised.
    Results: From 1 February to 13 April a total of 20,089 samples were received for SARS-CoV-2 testing. Of 2,011 samples from patients with multiple tests, 25 samples were positive. Nine samples were from patients who initially tested negative then tested positive. Reasons for the initial negative test results, which were all from upper respiratory tract samples, included pre-symptomatic presentation or late presentation. All patients had significant risk factors and ongoing or evolving symptoms, which warranted repeat testing.
    Conclusion: Few patients had discordant test results for SARS-CoV-2 RT-PCR. For patients who have a significant risk factor and a negative test result, repeat testing should be performed.
    MeSH term(s) Asymptomatic Diseases/epidemiology ; Betacoronavirus/isolation & purification ; COVID-19 ; COVID-19 Testing ; COVID-19 Vaccines ; Clinical Laboratory Techniques/methods ; Clinical Laboratory Techniques/standards ; Clinical Laboratory Techniques/statistics & numerical data ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/physiopathology ; Diagnosis, Differential ; False Negative Reactions ; Female ; Humans ; Male ; Middle Aged ; New Zealand/epidemiology ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/physiopathology ; Reproducibility of Results ; Retrospective Studies ; Risk Assessment ; Risk Factors ; SARS-CoV-2
    Chemical Substances COVID-19 Vaccines ; Covid-19 aAPC vaccine
    Keywords covid19
    Language English
    Publishing date 2020-07-31
    Publishing country New Zealand
    Document type Journal Article ; Observational Study
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Evaluation of extraction and amplification assays for the detection of SARS-CoV-2 at Auckland Hospital laboratory during the COVID-19 outbreak in New Zealand.

    Basu, Indira / Nagappan, Radhika / Fox-Lewis, Shivani / Muttaiyah, Sharmini / McAuliffe, Gary

    Journal of virological methods

    2020  Volume 289, Page(s) 114042

    Abstract: Utilising diverse molecular platforms has formed a solid foundation in New Zealand's COVID-19 response. We evaluated multiple extraction and PCR assays for the detection of SARS-CoV-2. We included 65 positive samples which were run on the Panther Fusion ... ...

    Abstract Utilising diverse molecular platforms has formed a solid foundation in New Zealand's COVID-19 response. We evaluated multiple extraction and PCR assays for the detection of SARS-CoV-2. We included 65 positive samples which were run on the Panther Fusion using a laboratory developed test (LDT, E gene target). Where viral RNA was extracted by MagNA Pure (MP) 96 extraction platform or EpMotion 5075/Geneaid extraction kit, SARS-CoV-2 detection was performed on Light Cycler (LC) 480 using a LDT (E gene) or 3 commercial assays; Certest Viasure (Orf1ab, N genes) GenePro (E, RdRp genes) and A* Star Fortitude (proprietary target). Median Cts on LC 480 LDT for specimens (n = 9) extracted on MP 96 (26.6) were lower than on EpMotion (31.6) whereas median Cts for specimens (n = 10) extracted on the Panther Fusion LDT (23.1) were comparable with MP 96 /LC480 LDT (23.6). Specimens tested on Panther Fusion LDT (n = 28), extracted by MP 96, and amplified using commercial assays showed good concordance with a few exceptions; lower median Ct values were seen for 2 targets on GenePro (16.9, 21.5) and Viasure (19.5, 21.1) than for the Panther Fusion LDT (24.2) and A* Star Fortitude (25.6). Specimens tested on MP 96 (n = 18) had comparable results using commercial assays, with lower median Cts for Viasure (22.2, 23.7) compared with the LC 480 LDT (24.7), GenePro (24.7,25.7) and A*Fortitude (25.1) assays. The study provides an early assessment of the performance characteristics of 3 extraction methods for viral RNA and 5 PCR assays for the detection of SARS-CoV-2.
    MeSH term(s) COVID-19/diagnosis ; COVID-19 Testing/methods ; Disease Outbreaks ; Humans ; New Zealand/epidemiology ; Polymerase Chain Reaction/methods ; RNA, Viral/analysis ; SARS-CoV-2/isolation & purification ; Sensitivity and Specificity ; Specimen Handling
    Chemical Substances RNA, Viral
    Language English
    Publishing date 2020-12-17
    Publishing country Netherlands
    Document type Evaluation Study ; Journal Article
    ZDB-ID 8013-5
    ISSN 1879-0984 ; 0166-0934
    ISSN (online) 1879-0984
    ISSN 0166-0934
    DOI 10.1016/j.jviromet.2020.114042
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Healthcare workers' perceptions of an organizational quality assurance program implemented in a resource-limited setting: a qualitative study.

    Henker, Hiroko / Fox-Lewis, Shivani / Tep, Navy / Vanna, Dary / Pol, Sreymom / Turner, Claudia

    Health promotion perspectives

    2018  Volume 8, Issue 3, Page(s) 179–186

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2018-07-07
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2691688-5
    ISSN 2228-6497
    ISSN 2228-6497
    DOI 10.15171/hpp.2018.24
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: A comparison of the performance of saliva and nasopharyngeal nucleic acid amplification testing for the detection of SARS-CoV-2 in New Zealand.

    McAuliffe, Gary / Blackmore, Tim / Elvy, Juliet / Fox-Lewis, Shivani / Gilpin, Brent / Grant, Jenny / Nagappan, Radhika / Smit, Erasmus / Tan, Chor Ee / Tiongko, Fernalynn / Ussher, James

    The New Zealand medical journal

    2022  Volume 135, Issue 1559, Page(s) 53–58

    Abstract: Aim: To compare detection of SARS-CoV-2 from paired nasopharyngeal swabs (NPS) and saliva using molecular methods in common use for testing swabs in New Zealand.: Method: Samples from individuals testing positive for SARS-CoV-2 in Auckland, ... ...

    Abstract Aim: To compare detection of SARS-CoV-2 from paired nasopharyngeal swabs (NPS) and saliva using molecular methods in common use for testing swabs in New Zealand.
    Method: Samples from individuals testing positive for SARS-CoV-2 in Auckland, Wellington and Dunedin were tested at the local laboratories using methods previously established for these sample types.
    Results: One hundred and ninety-six paired samples from unique individuals were tested, with 46 (23%) positive from either sample type, of which 43/46 (93%) tested positive from NPS, and 42/46 (91%) from saliva, indicating no significant difference in performance between sample types (p=0.69). The average Δ Ct between saliva and nasopharyngeal swabs overall across the sample set was 0.22 cycles, indicating excellent concordance; however, the difference between NPS and saliva collected from the same individual was quite variable with up to 19 cycles difference between the sample types.
    Conclusion: We found that saliva is an equivalent sample type to nasopharyngeal swab for the detection of SARS-CoV-2 in our laboratories using multiple assay combinations and is suitable for use as a diagnostic and surveillance test for selected groups of individuals.
    MeSH term(s) COVID-19/diagnosis ; Clinical Laboratory Techniques/methods ; Humans ; Nasopharynx ; New Zealand ; Nucleic Acids ; SARS-CoV-2/genetics ; Saliva ; Specimen Handling/methods
    Chemical Substances Nucleic Acids
    Language English
    Publishing date 2022-08-05
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Age-related differences in SARS-CoV-2 testing in the Northern Region of New Zealand.

    Chhibber, Aakash V / Muttaiyah, Sharmini / McAuliffe, Gary / Fox-Lewis, Shivani / De Almeida, Mary / Blakiston, Matthew / Playle, Veronica / Fox-Lewis, Andrew / Roberts, Sally

    The New Zealand medical journal

    2020  Volume 133, Issue 1519, Page(s) 89–94

    Abstract: Aim: There is concern the low incidence of coronavirus disease 2019 (COVID-19) in children reflects under-testing in this population. This study sought to describe the age-distribution of SARS-CoV-2 testing in the Northern Region of New Zealand.: ... ...

    Abstract Aim: There is concern the low incidence of coronavirus disease 2019 (COVID-19) in children reflects under-testing in this population. This study sought to describe the age-distribution of SARS-CoV-2 testing in the Northern Region of New Zealand.
    Methods: A retrospective single-centre review of all SARS-CoV-2 tests performed at LabPLUS, Auckland City Hospital, between 12 February and 18 April 2020.
    Results: A total of 22,333 tests were performed, with 313 (1.40%) positive results. The age-adjusted SARS-CoV-2 testing rate was three times higher in adults than in children. The overall proportion of positive tests was lower in children (0.86%) than adults (1.45%). However, within the paediatric population the proportion of tests positive differed significantly between those <10 years old (0.08%) and those 10-14 years old (2.6%).
    Conclusion: The lower proportion of tests positive in children <10 years of age suggests they are appropriately tested relative to their rates of disease. A large high school-associated cluster makes the higher proportion of tests positive in children 10-14 years old difficult to interpret. Older children may have a higher risk of infection and increasing testing in intermediate and high school aged children may be indicated.
    MeSH term(s) Adolescent ; Adult ; Age Distribution ; Betacoronavirus/isolation & purification ; COVID-19 ; COVID-19 Testing ; Child ; Clinical Laboratory Techniques/methods ; Clinical Laboratory Techniques/statistics & numerical data ; Cluster Analysis ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/physiopathology ; Female ; Humans ; Male ; New Zealand/epidemiology ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/physiopathology ; Retrospective Studies ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-07-31
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 390590-1
    ISSN 1175-8716 ; 0028-8446 ; 0110-7704
    ISSN (online) 1175-8716
    ISSN 0028-8446 ; 0110-7704
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top