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1.
Prenat Diagn ; 44(4): 465-479, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38441167

ABSTRACT

OBJECTIVES: In October 2020, rapid prenatal exome sequencing (pES) was introduced into routine National Health Service (NHS) care in England. This study aimed to explore parent experiences and their information and support needs from the perspective of parents offered pES and of health professionals involved in its delivery. METHODS: In this qualitative study, semi-structured interviews were conducted with 42 women and 6 male partners and 63 fetal medicine and genetic health professionals. Interviews were transcribed verbatim and analysed using thematic analysis. RESULTS: Overall views about pES were positive and parents were grateful to be offered the test. Highlighted benefits of pES included the value of the additional information for pregnancy management and planning for future pregnancies. An anxious wait for results was common, often associated with the need to make decisions near to 24 weeks in pregnancy when there are legal restrictions for late termination. Descriptions of dealing with uncertainty were also common, even when results had been returned. Many parents described pES results as informing decision-making around whether or not to terminate pregnancy. Some professionals were concerned that a non-informative result could be overly reassuring and highlighted that careful counselling was needed to ensure parents have a good understanding of what the result means for their pregnancy. Emotional support from professionals was valued; however, some parents felt that post-test support was lacking. CONCLUSION: Parents and professionals welcomed the introduction of pES. Results inform parents' decision-making around the termination of pregnancy. When there are no diagnostic findings or uncertain findings from pES, personalised counselling that considers scans and other tests are crucial. Directing parents to reliable online sources of information and providing emotional support throughout could improve their experiences of care.


Subject(s)
Parents , State Medicine , Pregnancy , Humans , Male , Female , Exome Sequencing , Parents/psychology , England , Counseling , Qualitative Research
2.
Nat Commun ; 15(1): 2758, 2024 Mar 29.
Article in English | MEDLINE | ID: mdl-38553439

ABSTRACT

Hospital surfaces can harbour bacterial pathogens, which may disseminate and cause nosocomial infections, contributing towards mortality in low- and middle-income countries (LMICs). During the BARNARDS study, hospital surfaces from neonatal wards were sampled to assess the degree of environmental surface and patient care equipment colonisation by Gram-negative bacteria (GNB) carrying antibiotic resistance genes (ARGs). Here, we perform PCR screening for extended-spectrum ß-lactamases (blaCTX-M-15) and carbapenemases (blaNDM, blaOXA-48-like and blaKPC), MALDI-TOF MS identification of GNB carrying ARGs, and further analysis by whole genome sequencing of bacterial isolates. We determine presence of consistently dominant clones and their relatedness to strains causing neonatal sepsis. Higher prevalence of carbapenemases is observed in Pakistan, Bangladesh, and Ethiopia, compared to other countries, and are mostly found in surfaces near the sink drain. Klebsiella pneumoniae, Enterobacter hormaechei, Acinetobacter baumannii, Serratia marcescens and Leclercia adecarboxylata are dominant; ST15 K. pneumoniae is identified from the same ward on multiple occasions suggesting clonal persistence within the same environment, and is found to be identical to isolates causing neonatal sepsis in Pakistan over similar time periods. Our data suggests persistence of dominant clones across multiple time points, highlighting the need for assessment of Infection Prevention and Control guidelines.


Subject(s)
Developing Countries , Neonatal Sepsis , Infant, Newborn , Humans , beta-Lactamases/genetics , Bacterial Proteins/genetics , Hospitals , Anti-Bacterial Agents/pharmacology , Klebsiella pneumoniae/genetics , Gram-Negative Bacteria/genetics , Microbial Sensitivity Tests
3.
Animals (Basel) ; 13(17)2023 Sep 04.
Article in English | MEDLINE | ID: mdl-37685071

ABSTRACT

Stool sampling is a useful tool for diagnosing gastrointestinal disease in veterinary medicine. The sub-clinical disease burden of Salmonella spp. in cattle can become significant for farmers. However, current methods of faecal sampling in a rural setting for diagnosis are not consistently sufficient for the preservation of Salmonella spp. in faeces. This study evaluated the use of a commercial stool storage kit for bacterial preservation in cow faecal samples compared to unpreserved stools placed into refrigeration at different time-points. A stool sample was collected per-rectum from one apparently healthy Holstein-Freisen cow. The sample was weighed and aliquoted into two sterile Falcon tubes and into two commercial kit tubes. The aliquots were then placed into refrigeration at 4 °C at 0, 24, and 96 h after processing. One commercial kit tube was not aliquoted and remained at ambient temperature. After 2 weeks, DNA was extracted from the samples and analysed using endpoint PCR, revealing a sub-clinical infection with Salmonella spp. The bacterium was best preserved when the stool was stored in the commercial kit at ambient temperature and re-homogenised immediately prior to DNA extraction. The unpreserved stool did not maintain obvious levels of Salmonella spp. after 24 h at ambient temperature. This commercial kit should be considered for use in the diagnosis of salmonellosis in cattle.

4.
Psychol Sport Exerc ; 68: 102457, 2023 09.
Article in English | MEDLINE | ID: mdl-37665901

ABSTRACT

Family are influential actors in adapted sport participation. However, little is known about their experiences with adapted sport. The current study sought to explore the experiences of families in adapted sport through the context of the Invictus Games, an international adapted sport competition for military personnel with physical and psychological illnesses and injuries that is unique in its inclusion of family programming. Family members (n = 21; partners, parents, siblings, and children) of Invictus Games Toronto 2017 competitors participated in semi-structured interviews. Data were analyzed using reflexive thematic analysis. Three themes were identified: recognition of family experiences during service and after onset of disability; creating a sense of belonging; and improving family knowledge and perceptions. This study provides insight regarding how adapted sport events can support the well-being of both individuals with illnesses and injuries and their families.


Subject(s)
Lens, Crystalline , Lenses , Military Personnel , Unionidae , Child , Animals , Humans , Family , Parents
5.
BMJ Open Ophthalmol ; 8(Suppl 2): A9-A10, 2023 08.
Article in English | MEDLINE | ID: mdl-37604533

ABSTRACT

PURPOSE: NHS Blood and Transplant Tissue and Eye Services provide a serum eye drop (SED) service to patients suffering from severe dry eye syndrome. Currently SED are dispensed using an automatic closed filling system (TF) manufactured by Meise Medizintechnik (Germany). An improved version (ATS) has recently been introduced by Meise, based on patient feedback on the TF system. ATS vials are easier to open, with a more secure, tamper evident closure and a better quality nozzle.To evaluate the suitability of ATS vials, a validation protocol, previously developed for TF vials, was repeated. It comprised assessment of their integrity following simulated storage and transport, and the stability and sterility of SED stored in them. METHOD: Firstly, a process simulation assessment was performed using bovine serum. Vials were filled, and frozen to -80oC. They were then removed from frozen storage and checked for damage, before being put into transport containers and shipped on a round-trip journey to simulate delivery to patients. On return the vials were thawed and the integrity of each vial checked visually and by application of a standard force.Subsequently a shelf-life study was carried out using three batches of human SED. The vials were initially frozen to -80oC, then stored for set time points of 1, 3, 6 and 12 months in a standard domestic freezer set at 20oC (to mimic a home freezer). At each time point, 10 vials were thawed and examined for integrity, and the sterility and stability of the contents. Stability was assessed by measuring serum albumin concentrations and sterility by testing for presence of microbial contamination, under aerobic and anaerobic conditions. RESULTS: No vial damage or leakage was found at any time point in the ATS vials. No microbial contamination was detected, and no change in albumin levels was detected in SED throughout the storage period. CONCLUSION: This study has demonstrated that the ATS vials are suitable for provision of SED for clinical use to patients. Feedback is now being gathered from a patient focus group relating to usability of the vials.


Subject(s)
Infertility , Serum Albumin , Humans , Ophthalmic Solutions , Commerce , Computer Simulation
6.
BMJ Open Ophthalmol ; 8(Suppl 2): A5, 2023 08.
Article in English | MEDLINE | ID: mdl-37604573

ABSTRACT

INTRODUCTION: NHS Blood and Transplant Tissue and Eye Services (TES) is a human multi-tissue, tissue bank supplying tissue for transplant to surgeons throughout the UK. NHSBT has two Eye Banks.NHSBT investigated all our corneas discard due to contamination with the aim to review for any patterns. NHSBT Eye Banks performs initial Microbiology sampling on all Corneas in Corneas in Organ Culture Media at 7 Days. Corneas undergo a 2nd Microbiology sampling the day after the cornea is transferred into dextran median. MATERIALS AND METHODS: Any Microbiology positive media Identified pre-transplant are sent to NHSBT's Microbiology Reference Laboratory (MSL) for Identification. Any organisms which are identified post-dispatch are sent to a Referral Laboratory for rapid Identification and Sensitivity/Specificity Testing. FILTON EYE BANK: Contaminated Corneas in Organ Media: 2018- 28 (0.91%) 2019 -45 (1.10%), 2020- 27 (1.03%), 2021- 39 (1.41%), 2022- 43 (2.1%) (until 15/08/22)Most common Identified Organisms: C.Ablicans C. glabrata C.paraphilotisContaminated In Dextran Pre-Transplant: 2018- 4 (0.17%) 2019 -6 (0.18%), 2020- 9 (0.46%), 2021- 0 (0%), 2022- 3 (0.3%) (until 15/08/22). Most common Identified Organisms: Bacillus speciesContaminated in Dextran Post Transplant: 2018- 0 (0%) 2019 -8 (0.23%), 2020- 2(0.10%), 2021- 2 (0.08%), 2022- 1 (0.11%) (until 15/08/22). Most common Identified Organisms: Bacillus speciesDavid Lucas Eye Bank: Contaminated Corneas in Organ Media: 2020- 20(1.8%), 2021- 37(1.96%), 2022- 21(1.4%) (until 15/08/22). Most common Identified Organisms: C.Ablicans C. glabrata C.KefyrContaminated In Dextran Pre-Transplant: 2020- 6(0.8%), 2021- 2(0.14%), 2022- 1(0.08%) (until 15/08/22). Most common Identified Organisms: Bacillus speciesContaminated in Dextran Post Transplant: 2020- 2 (0.26%), 2021- 1 (0.07%), 2022- 2 (0.16%) (until 15/08/22). Most common Identified Organisms: Bacillus species DISCUSSION: Processes and facilities are of same standard between the two NHSBT Eye Banks and contamination rates are comparable. contamination is only identified in Approx1% of corneas processed. Corneas where growth is identified in Dextran is less than 1% of corneas Issued. Of the positive Microbiology samples identified post-Transplant, were mostly identified as Environmental Bacteria and had no patient impact on patient and assumed to have been contaminated by the operator.


Subject(s)
Bacillus , Transplants , Humans , Dextrans , Eye Banks , Tissue Banks
9.
Prev Med Rep ; 33: 102206, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37223562

ABSTRACT

The impacts of suicidality on families are well known, which is particularly relevant in at-risk populations, such as active duty military personnel and Veteran communities. This scoping review describes how military and Veteran families have been conceptualized within suicide prevention research. A systematic, multi-database search was conducted, and 4,835 studies were screened. All included studies underwent quality assessment. Bibliographic, participant, methodological, and family-relevant data was extracted and descriptively analyzed into Factors, Actors, and Impacts. In total, 51 studies (2007 - 2021) were included. Most studies focused on suicidality rather than suicide prevention. Factor studies described family constructs as a suicidality risk or protective factor for military personnel or Veterans. Actor studies described families' roles or responsibilities to act in relation to the suicidality of military personnel or Veterans. Impacts studies described the impacts of suicidality on military and Veteran family members. The search was limited to English language studies. There were few studies on suicide prevention interventions for or including military and Veteran family members. Family was typically considered peripheral to the military personnel or Veteran experiencing suicidality. However, there was also emerging evidence of suicidality and its consequences in military-connected family members.

10.
Microbiome ; 11(1): 100, 2023 05 08.
Article in English | MEDLINE | ID: mdl-37158960

ABSTRACT

BACKGROUND AND AIMS: The gut microbiota is implicated in the pathogenesis of colorectal cancer (CRC). We aimed to map the CRC mucosal microbiota and metabolome and define the influence of the tumoral microbiota on oncological outcomes. METHODS: A multicentre, prospective observational study was conducted of CRC patients undergoing primary surgical resection in the UK (n = 74) and Czech Republic (n = 61). Analysis was performed using metataxonomics, ultra-performance liquid chromatography-mass spectrometry (UPLC-MS), targeted bacterial qPCR and tumour exome sequencing. Hierarchical clustering accounting for clinical and oncological covariates was performed to identify clusters of bacteria and metabolites linked to CRC. Cox proportional hazards regression was used to ascertain clusters associated with disease-free survival over median follow-up of 50 months. RESULTS: Thirteen mucosal microbiota clusters were identified, of which five were significantly different between tumour and paired normal mucosa. Cluster 7, containing the pathobionts Fusobacterium nucleatum and Granulicatella adiacens, was strongly associated with CRC (PFDR = 0.0002). Additionally, tumoral dominance of cluster 7 independently predicted favourable disease-free survival (adjusted p = 0.031). Cluster 1, containing Faecalibacterium prausnitzii and Ruminococcus gnavus, was negatively associated with cancer (PFDR = 0.0009), and abundance was independently predictive of worse disease-free survival (adjusted p = 0.0009). UPLC-MS analysis revealed two major metabolic (Met) clusters. Met 1, composed of medium chain (MCFA), long-chain (LCFA) and very long-chain (VLCFA) fatty acid species, ceramides and lysophospholipids, was negatively associated with CRC (PFDR = 2.61 × 10-11); Met 2, composed of phosphatidylcholine species, nucleosides and amino acids, was strongly associated with CRC (PFDR = 1.30 × 10-12), but metabolite clusters were not associated with disease-free survival (p = 0.358). An association was identified between Met 1 and DNA mismatch-repair deficiency (p = 0.005). FBXW7 mutations were only found in cancers predominant in microbiota cluster 7. CONCLUSIONS: Networks of pathobionts in the tumour mucosal niche are associated with tumour mutation and metabolic subtypes and predict favourable outcome following CRC resection. Video Abstract.


Subject(s)
Colorectal Neoplasms , Gastrointestinal Microbiome , Microbiota , Humans , Chromatography, Liquid , Tandem Mass Spectrometry , Microbiota/genetics , Gastrointestinal Microbiome/genetics , Colorectal Neoplasms/surgery
11.
Int J Food Sci Nutr ; 74(3): 327-337, 2023 May.
Article in English | MEDLINE | ID: mdl-37221881

ABSTRACT

High-fibre diets are beneficial for many health outcomes via a wide range of mechanisms including gut microbiota fermentation-derived short-chain fatty acid (SCFAs) production. Mycoprotein (marketed as Quorn) is a food high in fibre (>6 g/100 g wet weight (ww)) and protein (13 g/100 g ww) which has been shown to have positive effects on glycemic control and appetite in humans. Nevertheless, the mechanisms underpinning this are poorly understood. Here, we investigate the changes in gut microbiota α- and ß-diversity, pH and SCFAs production in faecal batch cultures supplemented with pre-digested mycoprotein (Quorn), soy, chicken and control (unsupplemented) using eight fresh stools from healthy donors. The results showed that pre-digested mycoprotein did not alter pH (p = .896), α- or ß-diversity of the gut microbiota when compared to the control, soy, and chicken. Nevertheless, chicken led to a significant increase in total SCFAs post-24 h vs. control (+57.07 mmol/L, p = .01). In particular, propionate increased when compared to soy (+19.59 mmol/L, p = .03) and the control (+23.19 mmol/L, p < .01). No other differences in SCFAs were detected. In conclusion, pre-digested mycoprotein was not fermented in vitro by healthy gut microbiota in the settings of this experiment.


Subject(s)
Gastrointestinal Microbiome , Microbiota , Humans , Fermentation , Batch Cell Culture Techniques , Fatty Acids, Volatile/metabolism , Feces
12.
EBioMedicine ; 88: 104430, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36634565

ABSTRACT

BACKGROUND: Patients with inflammatory bowel disease (IBD) treated with anti-TNF therapy exhibit attenuated humoral immune responses to vaccination against SARS-CoV-2. The gut microbiota and its functional metabolic output, which are perturbed in IBD, play an important role in shaping host immune responses. We explored whether the gut microbiota and metabolome could explain variation in anti-SARS-CoV-2 vaccination responses in immunosuppressed IBD patients. METHODS: Faecal and serum samples were prospectively collected from infliximab-treated patients with IBD in the CLARITY-IBD study undergoing vaccination against SARS-CoV-2. Antibody responses were measured following two doses of either ChAdOx1 nCoV-19 or BNT162b2 vaccine. Patients were classified as having responses above or below the geometric mean of the wider CLARITY-IBD cohort. 16S rRNA gene amplicon sequencing, nuclear magnetic resonance (NMR) spectroscopy and bile acid profiling with ultra-high-performance liquid chromatography mass spectrometry (UHPLC-MS) were performed on faecal samples. Univariate, multivariable and correlation analyses were performed to determine gut microbial and metabolomic predictors of response to vaccination. FINDINGS: Forty-three infliximab-treated patients with IBD were recruited (30 Crohn's disease, 12 ulcerative colitis, 1 IBD-unclassified; 26 with concomitant thiopurine therapy). Eight patients had evidence of prior SARS-CoV-2 infection. Seventeen patients (39.5%) had a serological response below the geometric mean. Gut microbiota diversity was lower in below average responders (p = 0.037). Bilophila abundance was associated with better serological response, while Streptococcus was associated with poorer response. The faecal metabolome was distinct between above and below average responders (OPLS-DA R2X 0.25, R2Y 0.26, Q2 0.15; CV-ANOVA p = 0.038). Trimethylamine, isobutyrate and omega-muricholic acid were associated with better response, while succinate, phenylalanine, taurolithocholate and taurodeoxycholate were associated with poorer response. INTERPRETATION: Our data suggest that there is an association between the gut microbiota and variable serological response to vaccination against SARS-CoV-2 in immunocompromised patients. Microbial metabolites including trimethylamine may be important in mitigating anti-TNF-induced attenuation of the immune response. FUNDING: JLA is the recipient of an NIHR Academic Clinical Lectureship (CL-2019-21-502), funded by Imperial College London and The Joyce and Norman Freed Charitable Trust. BHM is the recipient of an NIHR Academic Clinical Lectureship (CL-2019-21-002). The Division of Digestive Diseases at Imperial College London receives financial and infrastructure support from the NIHR Imperial Biomedical Research Centre (BRC) based at Imperial College Healthcare NHS Trust and Imperial College London. Metabolomics studies were performed at the MRC-NIHR National Phenome Centre at Imperial College London; this work was supported by the Medical Research Council (MRC), the National Institute of Health Research (NIHR) (grant number MC_PC_12025) and infrastructure support was provided by the NIHR Imperial Biomedical Research Centre (BRC). The NIHR Exeter Clinical Research Facility is a partnership between the University of Exeter Medical School College of Medicine and Health, and Royal Devon and Exeter NHS Foundation Trust. This project is supported by the National Institute for Health Research (NIHR) Exeter Clinical Research Facility. The views expressed are those of the authors and not necessarily those of the NIHR or the UK Department of Health and Social Care.


Subject(s)
COVID-19 , Gastrointestinal Microbiome , Inflammatory Bowel Diseases , Humans , COVID-19 Vaccines , Antibody Formation , ChAdOx1 nCoV-19 , BNT162 Vaccine , Infliximab , RNA, Ribosomal, 16S , Tumor Necrosis Factor Inhibitors/therapeutic use , SARS-CoV-2 , Inflammatory Bowel Diseases/drug therapy , Metabolome
13.
Acad Emerg Med ; 30(1): 16-22, 2023 01.
Article in English | MEDLINE | ID: mdl-36478487

ABSTRACT

BACKGROUND: Delirium in older people is associated with significant morbidity and mortality and has life-threatening etiologies making prompt recognition essential. Computed tomography of the head (CT-head) may have a role in determining the cause of delirium; however, inpatient studies suggest it is overused. There is a paucity of emergency department (ED)-based research surrounding the use of CT-head in delirium. This study aims to describe the utility of CT-head in older patients presenting to the ED with symptoms of delirium. METHODS: We conducted a retrospective chart review of patients 65 years and older with symptoms of delirium who visited local EDs over a 3.5-year period (2016-2020). We compared patients who did and did not receive CT-head. Our primary objective was to determine the proportion of acute findings in patients who received CT-head. Our secondary objectives were to describe the proportions of patients who did and did not receive CT-head in terms of their demographics, presenting symptoms, disposition, and indications for and results of CT-head scans. Chi-square tests were utilized for comparisons. RESULTS: A total of 630 encounters were identified through database searching; 526 met inclusion criteria. Thirty-four were excluded for presenting directly to consultants, leaving 492 included encounters. Of those who received a CT-head (n = 279), 13 (4.7%) had acute findings. Of the encounters with acute findings, four (30.77%) had focal neurological deficits (FND), and two (15.38%) had Glasgow Coma Scale (GCS) score < 14. Patients without CT-head (n = 213) were more likely to be discharged (p < 0.01) and less likely to have a FND (p < 0.01). CONCLUSIONS: CT-head is ordered for over half of older ED patients with symptoms of delirium despite infrequent acute findings. Acute findings typically occur in the context of symptoms suggestive of intracranial abnormalities such as FND or GCS < 14. This suggests physicians should be more selective when ordering CT-heads in patients with symptoms of delirium.


Subject(s)
Delirium , Emergency Service, Hospital , Humans , Aged , Retrospective Studies , Delirium/diagnostic imaging , Tomography, X-Ray Computed/methods , Tomography , Glasgow Coma Scale
14.
Gastroenterology ; 164(2): 198-213, 2023 02.
Article in English | MEDLINE | ID: mdl-36309208

ABSTRACT

Accumulating evidence supports not only the functional role of the gut microbiome in cancer development and progression but also its role in defining the efficacy and toxicity of chemotherapeutic agents (5-fluorouracil, cyclophosphamide, irinotecan, oxaliplatin, gemcitabine, methotrexate) and immunotherapeutic compounds (anti-programmed death-ligand 1/anti-programmed cell death protein 1 and anti-cytotoxic T-lymphocyte-associated antigen 4). This evidence is supported in numerous in vitro, animal, and clinical studies that highlight the importance of microbial mechanisms in defining therapeutic responses. The microbiome therefore shapes oncologic outcomes and is now being leveraged for the development of novel personalized therapeutic approaches in cancer treatment. However, if the microbiome is to be successfully translated into next-generation oncologic treatments, a new multimodal model of the oncomicrobiome must be conceptualized that incorporates gut microbial cometabolism of pharmacologic agents into cancer care. The objective of this review is therefore to outline the current knowledge of oncologic pharmacomicrobiomics and to describe how the multiparametric functions of the gut microbiome influence treatment response across cancer types. The secondary objective is to propose innovative approaches for modulating the gut microbiome in clinical environments that improve therapy efficacy and diminish toxic effects derived from antineoplastic agents for patient benefit.


Subject(s)
Antineoplastic Agents , Gastrointestinal Microbiome , Microbiota , Neoplasms , Animals , Immunotherapy/adverse effects , Antineoplastic Agents/adverse effects
15.
Aliment Pharmacol Ther ; 56(11-12): 1556-1569, 2022 12.
Article in English | MEDLINE | ID: mdl-36250604

ABSTRACT

BACKGROUND: Factors influencing recurrence risk in primary Clostridioides difficile infection (CDI) are poorly understood, and tools predicting recurrence are lacking. Perturbations in bile acids (BAs) contribute to CDI pathogenesis and may be relevant to primary disease prognosis. AIMS: To define stool BA dynamics in patients with primary CDI and to explore signatures predicting recurrence METHODS: Weekly stool samples were collected from patients with primary CDI from the last day of anti-CDI therapy until recurrence or, otherwise, through 8 weeks post-completion. Ultra-high performance liquid chromatography-mass spectrometry was used to profile BAs. Stool bile salt hydrolase (BSH) activity was measured to determine primary BA bacterial deconjugation capacity. Multivariate and univariate models were used to define differential BA trajectories in patients with recurrence versus those without, and to assess faecal BAs as predictive markers for recurrence. RESULTS: Twenty (36%) of 56 patients (median age: 57, 64% male) had recurrence; 80% of recurrences occurred within the first 9 days post-antibiotic treatment. Principal component analysis of stool BA profiles demonstrated clustering by recurrence status and post-treatment timepoint. Longitudinal faecal BA trajectories showed recovery of secondary BAs and their derivatives only in patients without recurrence. BSH activity increased over time only among non-relapsing patients (ß = 0.056; likelihood ratio test p = 0.018). A joint longitudinal-survival model identified five stool BAs with area under the receiver operating characteristic curve >0.73 for predicting recurrence within 9 days post-CDI treatment. CONCLUSIONS: Gut BA metabolism dynamics differ in primary CDI patients between those developing recurrence and those who do not. Individual BAs show promise as potential novel biomarkers to predict CDI recurrence.


Subject(s)
Clostridioides difficile , Clostridium Infections , Humans , Male , Middle Aged , Female , Bile Acids and Salts/analysis , Recurrence , Clostridium Infections/diagnosis , Clostridium Infections/drug therapy , Clostridium Infections/microbiology , Feces/chemistry
16.
Foot Ankle Int ; 43(12): 1587-1594, 2022 12.
Article in English | MEDLINE | ID: mdl-36239404

ABSTRACT

BACKGROUND: Primary tarsometatarsal (TMT) arthrodesis is gaining popularity in the surgical treatment of Lisfranc injuries. However, few studies have evaluated biomechanical effects of TMT arthrodesis. The purpose of this study was to compare the kinematics of joints adjacent to the midfoot during simulations of stance before and after sequential arthrodesis of the first, second, and third TMT joints. METHODS: Ten midtibia cadaveric specimens were loaded on a 6-degree-of-freedom robotic gait simulator. Motion capture cameras were used to collect joint kinematics throughout simulations of the stance phase. Simulations were performed for the intact and sequential arthrodesis conditions of the first, second, and third TMT joints. The sagittal, coronal, and transverse plane rotational kinematics of the intact condition were compared to kinematics after each sequential arthrodesis condition. RESULTS: Sequential arthrodesis of the first and second TMT joints had no significant effect on ankle, subtalar, talonavicular, and first metatarsophalangeal joint motion during simulated stance when compared to the intact condition. In contrast, inclusion of the third TMT joint into the sequential arthrodesis significantly increased subtalar inversion (P = .032) in late stance and increased range of motion values in the ankle and subtalar joints by 2.1 degrees (P = .009) and 2.8 degrees (P = .014), respectively. CONCLUSION: Sequential primary arthrodesis induced changes to ankle and adjacent joint kinematics during stance phase simulations, although not until the third TMT joint was included into the primary arthrodesis. The significant changes to kinematics due to arthrodesis of the first, second, and third TMT joints were small. CLINICAL RELEVANCE: The minimal changes in sagittal, coronal, and transverse plane rotational kinematics support the positive clinical outcomes reported in the literature for primary partial arthrodesis of Lisfranc injuries. The inclusion of the third TMT joint should be done judiciously.


Subject(s)
Arthrodesis , Subtalar Joint , Humans , Gait , Biomechanical Phenomena , Ankle Joint/surgery , Range of Motion, Articular , Cadaver
17.
CJEM ; 24(7): 770-779, 2022 11.
Article in English | MEDLINE | ID: mdl-36129627

ABSTRACT

PURPOSE: Current guidelines recommend hospital admission for patients who present to the emergency department (ED) with chest pain and are scored as intermediate risk for adverse outcomes based on the HEART score. While hospital admission for these patients allows for timely investigation and treatment, it is a resource-intensive process. This study examines whether intermediate HEART score patients can be safely managed on an outpatient basis through rapid access chest pain clinics. METHODS: This retrospective observational study included all ED chest pain patients referred to rapid access clinics from January 2018 to April 2020 in Regina and Saskatoon, Saskatchewan. ED physician HEART scores were used in lieu of reviewer HEART scores when available. The primary outcome was the rate of major adverse coronary events (MACE), a composite measure of death, acute coronary syndrome, stroke, coronary angiography, and revascularization at 6 weeks in intermediate-risk patients. Secondary outcomes were the type of MACE, rate of MACE before rapid access clinic appointment and the most predictive component of the HEART score. RESULTS: There were 1989 ED referrals, of which 817 were for intermediate-risk patients. 9.3% of intermediate-risk patients had a MACE at 6 weeks. MACE occurred before rapid access clinic follow-up in 1.1% of intermediate-risk patients, with coronary angiography being the most common MACE. Excluding coronary angiography, the risk of MACE before rapid access clinic follow-up was 0.7% in intermediate-risk patients. Components of the HEART score most predictive of MACE were troponin (OR 11.0, 95% CI: 3.7-32.3) and history (5.3, 95% CI: 2.4-11.8). CONCLUSION: This study demonstrates that rapid access clinics are likely a safe alternative to admission for intermediate-risk chest pain patients and could reduce costly inpatient admissions for chest pain. With angiography excluded, MACE rates were well below the American College of Emergency Physicians cited 2% threshold.


RéSUMé: OBJECTIF: Les directives actuelles recommandent l'admission à l'hôpital des patients qui se présentent aux urgences avec une douleur thoracique et qui sont classés comme présentant un risque intermédiaire d'effets indésirables selon le score HEART. Bien que l'hospitalisation de ces patients permette une investigation et un traitement en temps opportun, il s'agit d'un processus exigeant en ressources. Cette étude examine si les patients ayant un score HEART intermédiaire peuvent être pris en charge en toute sécurité en ambulatoire par des cliniques d'accès rapide aux douleurs thoraciques. MéTHODES: Cette étude observationnelle rétrospective a inclus tous les patients souffrant de douleurs thoraciques aux urgences orientés vers des cliniques d'accès rapide de janvier 2018 à avril 2020 à Regina et Saskatoon, en Saskatchewan. Les scores HEART des médecins des urgences ont été utilisés à la place des scores HEART des examinateurs lorsqu'ils étaient disponibles. Le principal résultat était le taux d'événements coronariens indésirables majeurs (MACE), une mesure composite du décès, du syndrome coronarien aigu, de l'accident vasculaire cérébral, de l'angiographie coronaire et de la revascularisation à 6 semaines chez les patients à risque intermédiaire. Les résultats secondaires étaient le type de MACE, le taux de MACE avant un rendez-vous à la clinique d'accès rapide et la composante la plus prédictive du score HEART. RéSULTATS: Il y a eu 1989 orientations vers les urgences, dont 817 pour des patients à risque intermédiaire. 9,3 % des patients à risque intermédiaire ont subi un MACE à 6 semaines. Un MACE est survenu avant le suivi clinique d'accès rapide chez 1,1 % des patients à risque intermédiaire, la coronarographie étant le MACE le plus fréquent. À l'exclusion de l'angiographie coronarienne, le risque de MACE avant le suivi clinique d'accès rapide était de 0,7 % chez les patients à risque intermédiaire. Les composants du score HEART les plus prédictifs de MACE étaient la troponine (OR 11,0, IC 95 % : 3,7-32,3) et les antécédents (5,3, IC 95 % : 2,4-11,8). CONCLUSION: Cette étude démontre que les cliniques d'accès rapide sont probablement une alternative sûre à l'admission pour les patients souffrant de douleurs thoraciques à risque intermédiaire et pourraient réduire les admissions coûteuses de patients hospitalisés pour des douleurs thoraciques. En excluant l'angiographie, les taux de MACE étaient bien inférieurs au seuil de 2 % cité par l'American College of Emergency Physicians.


Subject(s)
Acute Coronary Syndrome , Outpatients , Humans , Risk Assessment , Emergency Service, Hospital , Chest Pain/diagnosis , Chest Pain/epidemiology , Chest Pain/etiology , Troponin , Acute Coronary Syndrome/complications , Acute Coronary Syndrome/diagnosis , Acute Coronary Syndrome/therapy , Electrocardiography , Risk Factors
19.
J Community Genet ; 13(3): 313-327, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35523996

ABSTRACT

The communication of genomic results to patients and families with rare diseases raise distinctive challenges. However, there is little evidence about optimal methods to communicate results to this group of service users. To address this gap, we worked with rare disease families and health professionals from two genetic/genomic services, one in the United Kingdom and one in the Czech Republic, to co-design that best meet their needs. Using the participatory methodology of Experience-Based Co-Design (EBCD), we conducted observations of clinical appointments (n=49) and interviews with family participants (n=23) and health professionals (n=22) to gather their experience of sharing/receiving results. The findings informed a facilitated co-design process, comprising 3 feedback events at each site and a series of meetings and remote consultations. Participants identified a total of four areas of current service models in need of improvement, and co-designed six prototypes of quality improvement interventions. The main finding was the identification of post-test care as the shared priority for improvement for both health professionals and families at the two sites. Our findings indicate the need to strengthen the link between diagnostics (whether or not a pathogenic variant is found) and post-test care, including psychosocial and community support. This raises implications for the reconfigurations of genomic service models, the redefinition of professional roles and responsibilities and the involvement of rare disease patients and families in health care research.

20.
Gut Microbes ; 14(1): 2038856, 2022.
Article in English | MEDLINE | ID: mdl-35230889

ABSTRACT

The intestinal microbiota is recognized to play a role in the defense against infection, but conversely also acts as a reservoir for potentially pathogenic organisms. Disruption to the microbiome can increase the risk of invasive infection from these organisms; therefore, strategies to restore the composition of the gut microbiota are a potential strategy of key interest to mitigate this risk. Fecal (or Intestinal) Microbiota Transplantation (FMT/IMT), is the administration of minimally manipulated screened healthy donor stool to an affected recipient, and remains the major 'whole microbiome' therapeutic approach at present. Driven by the marked success of using FMT in the treatment of recurrent Clostridioides difficile infection, the potential use of FMT in treating other infectious diseases is an area of active research. In this review, we discuss key examples of this treatment based on recent findings relating to the interplay between microbiota and infection, and potential further exploitations of FMT/IMT.


Subject(s)
Clostridioides difficile , Clostridium Infections , Communicable Diseases , Gastrointestinal Microbiome , Microbiota , Clostridium Infections/drug therapy , Clostridium Infections/prevention & control , Fecal Microbiota Transplantation , Feces , Humans , Treatment Outcome
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