22 results on '"Mallick, R."'
Search Results
2. Seven-year retrospective study understanding the latent TB infection treatment cascade of care among adults in a low incidence country
- Author
-
Sullivan, K., Pease, C., Zwerling, A., Mallick, R., Van Dyk, D., Mulpuru, S., Allen, C., Alsdurf, H., and Alvarez, G. G.
- Published
- 2021
- Full Text
- View/download PDF
3. Subcutaneous immunoglobulin in primary immunodeficiency – impact of training and infusion characteristics on patient-reported outcomes
- Author
-
Mallick, R., Henderson, T., Lahue, B. J., Kafal, A., Bassett, P., and Scalchunes, C.
- Published
- 2020
- Full Text
- View/download PDF
4. The effect of surgery report cards on improving radical prostatectomy quality: the SuRep study protocol.
- Author
-
Breau, R. H., Kumar, R. M., Lavallee, L. T., Cagiannos, I., Morash, C., Horrigan, M., Cnossen, S., Mallick, R., Stacey, D., Fung-Kee-Fung, M., Morash, R., Smylie, J., Witiuk, K., and Fergusson, D. A.
- Subjects
CANCER relapse ,ONCOLOGIC surgery ,PREOPERATIVE care ,PROSTATECTOMY ,COHORT analysis - Abstract
Background: The goal of radical prostatectomy is to achieve the optimal balance between complete cancer removal and preserving a patient's urinary and sexual function. Performing a wider excision of peri-prostatic tissue helps achieve negative surgical margins, but can compromise urinary and sexual function. Alternatively, sparing peri-prostatic tissue to maintain functional outcomes may result in an increased risk of cancer recurrence. The objective of this study is to determine the effect of providing surgeons with detailed information about their patient outcomes through a surgical report card.Methods: We propose a prospective cohort quasi-experimental study. The intervention is the provision of feedback to prostate cancer surgeons via surgical report cards. These report cards will be distributed every 3 months by email and will present surgeons with detailed information, including urinary function, erectile function, and surgical margin outcomes of their patients compared to patients treated by other de-identified surgeons in the study. For the first 12 months of the study, pre-operative, 6-month, and 12-month patient data will be collected but there will be no report cards distributed to surgeons. This will form the pre-feedback cohort. After the pre-feedback cohort has completed accrual, surgeons will receive quarterly report cards. Patients treated after the provision of report cards will comprise the post-feedback cohort. The primary comparison will be post-operative function of the pre-feedback cohort vs. post-feedback cohort. The secondary comparison will be the proportion of patients with positive surgical margins in the two cohorts. Outcomes will be stratified or case-mix adjusted, as appropriate. Assuming a baseline potency of 20% and a baseline continence of 70%, 292 patients will be required for 80% power at an alpha of 5% to detect a 10% improvement in functional outcomes. Assuming 30% of patients may be lost to follow-up, a minimum sample size of 210 patients is required in the pre-feedback cohort and 210 patients in the post-feedback cohort.Discussion: The findings from this study will have an immediate impact on surgeon self-evaluation and we hypothesize surgical report cards will result in improved overall outcomes of men treated with radical prostatectomy. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
5. Health-related physical fitness, physical activity and its correlates among school going adolescents in hilly state in north India: a cross sectional survey.
- Author
-
Kumari R, Nath B, Singh Y, and Mallick R
- Subjects
- Male, Female, Child, Humans, Adolescent, Cross-Sectional Studies, Body Mass Index, Exercise, Hemoglobins, Hand Strength, Physical Fitness
- Abstract
Introduction: Health-related physical fitness, which includes body composition, cardiorespiratory fitness, muscular endurance, flexibility, power, and strength are associated with risks of chronic diseases and promote good health and wellness. There have been reports of increasing levels of physical inactivity among children and adolescents, leading to increasing rates of obesity and decreased physical fitness. The present study was conducted among school going adolescents to estimate the levels and correlates of PF for timely intervention., Methodology: School based cross-sectional study was done among students of class 8-11th in Government schools of Garhwal division of Uttarakhand. Multistage stratified random sampling was applied for recruitment of study participants. We recruited a final sample size of 634 students. Validated questionnaires and standard methods for assessment of physical fitness, physical activity levels and other variables such as waist circumference, hip circumference, BMI and hemoglobin estimation were done., Results: Average and above average cardiorespiratory fitness score as per Harvard step test among boys (54.3%) was significantly higher as compared to girls (21.3%) (χ2 = 88.93, p < 0.001). There was a significant association between gender and dominant handgrip strength (χ2 = 8.02, p = 0.01) as well as between gender and Shoulder stretch test (SST) of dominant (χ2 = 17.5, p < 0.05) as well as nondominant arm (χ2 = 13.5, p < 0.05). Sit and reach test results also showed a significant association with gender (χ2 = 27.17, p < 0.001). Gender, hemoglobin level, BMI and PAL scores significantly predicted cardiorespiratory fitness scores (R2 = 0.188, F value of the model = 37.69, p =< 0.001))., Conclusion: Physical fitness of school going adolescents in Garhwal division of Uttarakhand was better than other parts of India, with significant gender differences. Physical activity levels (PAL) were poor and are also a significant predictor of physical fitness. More emphasis needs to be paid on the health and fitness of girl students. School based policies to increase PAL among students through innovation and rewards may go a long way in improving the long-term health of the students., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
6. Lessons learned about development and assessment of feasibility of tools for health and rehabilitation services.
- Author
-
Kathard H, Mallick R, Cloete TL, Hansen A, and Thabane L
- Abstract
Background: Given the dire need for health and rehabilitation services internationally, exacerbated during the COVID-19 pandemic, there is a critical need to develop tools to support service delivery. This need is palpable in the Global South where tools developed in Eurocentric contexts are not always adaptable, applicable, or relevant. It is for this reason that the researchers present three case studies of tool development using pilot and feasibility studies in South Africa and share the lessons learned from these studies., Objectives: To describe three case studies that developed new tools for health and rehabilitation services using pilot and feasibility studies. To synthesize lessons learned from these case studies on the development of tools., Method: The researchers describe three case studies that were developed. The case studies are summarized as follows: aims and objectives, context, problem, study design, findings, and what happened after the study. Thereafter, a qualitative cross-case analysis was conducted by the researchers to generate themes., Findings: The case studies are described individually and followed by themes identified through cross-case analysis., Discussion: The lessons learned are discussed. It is essential to develop new tools and protocols, motivated by the need for equitable and contextually relevant practices. Partnerships and collaboration with end-users are critical for success. A critical, scientific process is essential in developing new tools. Pilot and feasibility studies are invaluable in developing tools and assessing the feasibility of tools and implementation. The goal is to develop practical, usable tools and protocols., Conclusion: Through the lessons learned, the researchers are hopeful that the international health and rehabilitation professions will continue to strengthen the scientific development of contextually relevant tools and resources., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
7. Correction to: Emerging professional practices focusing on reducing inequity in speech-language therapy and audiology: a scoping review.
- Author
-
Abrahams K, Mallick R, Hohlfeld AS, Pillay T, Suliaman T, and Kathard H
- Published
- 2023
- Full Text
- View/download PDF
8. Emerging professional practices focusing on reducing inequity in speech-language therapy and audiology: a scoping review.
- Author
-
Abrahams K, Mallick R, Hohlfeld AS, Pillay T, Suliaman T, and Kathard H
- Subjects
- Humans, Professional Practice, Speech, Speech Therapy education, Audiology, Language Therapy education
- Abstract
Background: For the professions of audiology and speech-language therapy (A/SLT), there continues be a dire need for more equitable services. Therefore there is a need to develop emerging practices which have a specific focus on equity as a driving force in shifting practices. This scoping review aimed to synthesise the characteristics of emerging practices in A/SLT clinical practice in relation to equity with an emphasis on communication professions., Methods: This scoping review followed the Joanna Briggs Institute guidelines and aimed to map the emerging practices in A/SLT to identify the ways in which the professions are developing equitable practices. Papers were included if they addressed equity, focused on clinical practice and were situated within A/SLT literature. There were no time or language restrictions. The review included all sources of evidence across PubMed, Scopus, EbscoHost, The Cochrane Library and Dissertation Abstracts International, Education Resource Information Centre from their inception. The review uses PRISMA Extension for scoping reviews and PRISMA-Equity Extension reporting guidelines., Results: The 20 included studies ranged from 1997-2020, spanning over 20 years. There were a variety of papers including empirical studies, commentaries, reviews and research. The results demonstrated that the professions were increasingly considering addressing equity through their practice. However, there was a prominent focus around culturally and linguistically diverse populations, with limited engagement around other intersections of marginalisation. The results also showed that while the majority of contributions to theorising equity are from the Global North with a small cluster from the Global South offering critical contributions considering social categories such as race and class. Collectively the contributions from the Global South remain a very small minority of the professional discourse which have a focus on equity., Conclusion: Over the last eight years, the A/SLT professions are increasingly developing emerging practices to advance equity by engaging with marginalised communities. However, the professions have a long way to go to achieve equitable practice. The decolonial lens acknowledges the impact and influence of colonisation and coloniality in shaping inequity. Using this lens, we argue for the need to consider communication as a key aspect of health necessary to achieve health equity., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
9. COVID-19 vaccine hesitancy: a midwifery survey into attitudes towards the COVID-19 vaccine.
- Author
-
Odejinmi F, Mallick R, Neophytou C, Mondeh K, Hall M, Scrivener C, Tibble K, Turay-Olusile M, Deo N, Oforiwaa D, and Osayimwen R
- Subjects
- Animals, COVID-19 Vaccines, Female, Humans, Pandemics prevention & control, Pregnancy, Surveys and Questionnaires, Swine, Vaccination, Vaccination Hesitancy, COVID-19 prevention & control, Midwifery
- Abstract
Background: Ethnically minoritised people have been disproportionately affected by the COVID-19 pandemic. Emerging evidence suggests a lower uptake of the vaccine in ethnically minoritised people, particularly Black females of reproductive age. Unvaccinated pregnant women are high risk for morbidity and mortality from COVID-19. Midwives are the principal healthcare professionals responsible for counselling the pregnant population on decisions relating to vaccine uptake. The aim of this study was to explore midwifery uptake of and attitudes towards the COVID-19 vaccine in two ethnically diverse areas., Methods: A 45-point questionnaire was circulated over a six-week period to midwives employed in two teaching hospitals in England; London (Barts Health NHS Trust) and Sussex (Brighton and Sussex University Hospitals NHS Trust (BSUH)). A total of 378 out of 868 midwives responded. Results were analysed to determine vaccine uptake as well as factors influencing vaccine hesitancy and decision-making between the two trusts and ethnic groups. Thematic analysis was also undertaken., Results: Midwives of Black ethnicities were over 4-times less likely to have received a COVID-19 vaccine compared to midwives of White ethnicities (52% vs 85%, adjusted OR = 0.22, p = < 0.001). Overall, there were no significant differences between trusts in receipt of the COVID-19 vaccine (p = 0.13). Midwives at Barts Health were significantly more likely to have tested positive for COVID-19 compared to midwives at BSUH (adjusted OR = 2.55, p = 0.007). There was no statistical difference between ethnicities in testing positive for COVID-19 (p = 0.86). The most common concerns amongst all participants were regarding the long-term effect of the vaccine (35%), that it was developed too fast (24%), having an allergic reaction (22%) and concerns about fertility (15%). Amongst unvaccinated midwives, those of Black ethnicity had a higher occurrence of concern that the vaccine contained meat / porcine products (adjusted OR = 5.93, p = 0.04) and that the vaccine would have an adverse effect on ethnic minorities (adjusted OR = 4.42, p = 0.03)., Conclusion: This study highlights the significantly higher level of vaccine hesitancy amongst Black midwives and offer insights into midwives' concerns. This can facilitate future targeted public health interventions. It is essential that vaccine hesitancy amongst midwifery staff is addressed to improve vaccine uptake in the pregnant population., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
10. Emerging professional practices focusing on reducing inequity in speech-language therapy and audiology: a scoping review protocol.
- Author
-
Abrahams K, Mallick R, Hohlfeld A, Suliaman T, and Kathard H
- Subjects
- Adult, Allied Health Personnel, Humans, Language Therapy, Professional Practice, Review Literature as Topic, Speech, Audiology
- Abstract
Background: Human communication is essential for socialising, learning and working. Disabilities and social disadvantage have serious negative consequences on communication which can impact development from early life into adulthood. While speech-language therapists and audiologists (SLT/As) have an important role to play in addressing communication disability and disadvantage, services continue to be inaccessible, unaffordable and unattainable for the majority population. In order to support this large population, it is necessary to reimagine SLT/A practices in line with equity and social inclusion. Recently in the literature, there have been increasing calls for professions to reduce inequities in practice as indicated by the sustainable development goals, human rights and social inclusion approaches increasing in prominence. For the scoping review, equity is understood using the colonial matrix of power to understand how intersections of race, gender, class, disability, geography, heteronormativity and language create the context for inequity. As such, the aim of the scoping review is to address the following question: what are the emerging professional practices in SLT/A focused on reducing inequities?, Methods: Following the Joanna Briggs Institute guidelines, this scoping review will focus on systematically mapping the documented emerging clinical practices in SLT/A in the literature to identify how the professions are developing equitable practices. The search will include electronic databases and grey literature including PubMed, Scopus, EbscoHost, The Cochrane Library and Dissertation Abstracts International, Education Resource Information Centre from their inception onwards. Published and unpublished literature including all evidence sources will be considered. There should be a clear focus on clinical practice addressing equity in SLT/A. There will be no language limitations for the study. The authors will endeavour translate to have abstracts of articles translated. There will be no time restrictions on date of publication of the literature., Discussion: We aim to review the current literature on emerging professional practices in relation to equity in SLT/A to identify emerging trends in clinical practice. It is our goal to provide a synthesis of emerging directions for practice, particularly to inform future practices in the Global South., Systematic Review Registration: Open Science Framework ( osf.io/3a29w )., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
11. Improving health care facility birth rates in Rorya District, Tanzania: a multiple baseline trial.
- Author
-
Webber G, Chirangi B, Magatti N, Mallick R, and Taljaard M
- Subjects
- Adolescent, Adult, Child, Community Health Workers education, Female, Humans, Infant, Middle Aged, Postnatal Care trends, Pregnancy, Prenatal Care trends, Research Design, Rural Population, Social Determinants of Health, Tanzania epidemiology, Young Adult, Birth Rate, Delivery, Obstetric, Health Education methods, Health Facilities, Health Services Accessibility
- Abstract
Background: Rates of maternal mortality and morbidity in Africa remain unacceptably high, as many women deliver at home, without access to skilled birth attendants and life-saving medications. In rural Tanzania, women face significant barriers accessing health care facilities for their deliveries., Methods: From January 2017 to February 2019 we conducted a multiple baseline (interrupted time series) trial within the four divisions of Rorya District, Tanzania. We collected baseline data, then sequentially introduced a complex intervention in each of the divisions, in randomized order, over 3 month intervals. We allowed for a 6 month transition period to avoid contamination between the pre- and post-intervention periods. The intervention included using community health workers to educate about safe delivery, distribution of birth kits with misoprostol, and a transport subsidy for women living a distance from the health care facility. The primary outcome was the health facility birth rate, while the secondary outcomes were the rates of antenatal and postpartum care and postpartum hemorrhage. Outcomes were analyzed using fixed effects segmented logistic regression, adjusting for age, marital status, education, and parity. Maternal and baby morbidity/mortality were analyzed descriptively., Results: We analyzed data from 9565 pregnant women (2634 before and 6913 after the intervention was implemented). Facility births increased from 1892 (71.8%) before to 5895 (85.1%) after implementation of the intervention. After accounting for the secular trend, the intervention was associated with an immediate increase in the odds of facility births (OR = 1.51, 95% CI 1.14 to 2.01, p = 0.0045) as well as a small gradual effect (OR = 1.03 per month, 95% CI 1.00 to 1.07, p = 0.0633). For the secondary outcomes, there were no statistically significant immediate changes associated with the intervention. Rates of maternal and baby morbidity/mortality were low and similar between the pre- and post-implementation periods., Conclusions: Access to health care facilities can be improved through implementation of education of the population by community health workers about the importance of a health care facility birth, provision of birth kits with misoprostol to women in late pregnancy, and access to a transport subsidy for delivery for women living at a distance from the health facility., Clinical Trials Registration: NCT03024905 19/01/2017., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
12. The latent tuberculosis infection cascade of care in Iqaluit, Nunavut, 2012-2016.
- Author
-
Pease C, Zwerling A, Mallick R, Patterson M, Demaio P, Finn S, Allen J, Van Dyk D, and Alvarez GG
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Canada epidemiology, Child, Child, Preschool, Female, Humans, Incidence, Infant, Infant, Newborn, Latent Tuberculosis epidemiology, Male, Mass Screening, Middle Aged, Nunavut epidemiology, Retrospective Studies, Tuberculin Test, Young Adult, Latent Tuberculosis diagnosis, Latent Tuberculosis drug therapy, Patient Compliance statistics & numerical data
- Abstract
Background: A remote arctic region of Canada predominantly populated by Inuit with the country's highest incidence of tuberculosis., Methods: The study was undertaken to describe the latent tuberculosis infection (LTBI) cascade of care and identify factors associated with non-initiation and non-completion of LTBI treatment. Data were extracted retrospectively from medical records for all patients with a tuberculin skin test (TST) implanted in Iqaluit, Nunavut between January 2012 and March 2016. Associations between demographic and clinical factors and both treatment non-initiation among and treatment non-completion were identified using log binomial regression models where convergence could be obtained and Poisson models with robust error variance where convergence was not obtained., Results: Of 2303 patients tested, 439 (19.1%) were diagnosed with LTBI. Treatment was offered to 328 patients, was initiated by 246 (75.0% of those offered) and was completed by 186 (75.6% of initiators). In multivariable analysis, older age (adjust risk ratio [aRR] 1.17 per 5-year increase, 95%CI:1.09-1.26) and undergoing TST due to employment screening (aRR 1.63, 95%CI:1.00-2.65, compared to following tuberculosis exposure) were associated with increased non-initiation of treatment. Older age (aRR 1.13, 95%CI: 1.03-1.17, per 5-year increase) was associated with increased non-completion of treatment., Conclusions: A similar rate of treatment initiation and higher rate of treatment completion were found compared to previous North American studies. Interventions targeting older individuals and those identified via employment screening may be considered to help to address the largest losses in the cascade of care.
- Published
- 2019
- Full Text
- View/download PDF
13. A cluster randomised trial of a classroom communication resource program to change peer attitudes towards children who stutter among grade 7 students.
- Author
-
Mallick R, Kathard H, Borhan ASM, Pillay M, and Thabane L
- Subjects
- Adolescent, Bullying psychology, Child, Female, Humans, Interpersonal Relations, Male, Role Playing, Social Behavior, South Africa, Stuttering diagnosis, Time Factors, Adolescent Behavior, Bullying prevention & control, Child Behavior, Peer Group, School Health Services, Stuttering psychology, Verbal Behavior
- Abstract
Background: Classroom-based stuttering intervention addressing negative peer attitudes, perceptions, teasing and bullying of children who stutter (CWS) is required as part of holistic stuttering management because of its occurrence in primary school. This study was conducted in 2017, in 10 primary schools in the Western Cape, South Africa within lower (second and third) and higher (fourth and fifth) quintiles., Objectives: The primary objective of this study was to determine treatment effect at six months after intervention of grade 7 participants (Classroom Communication Resource [CCR] intervention versus no CCR) using global Stuttering Resource Outcomes Measure (SROM) scores in school clusters. The secondary objective was to determine grade 7 participant treatment effect on the SROM subscales including Positive Social Distance (PSD), Social Pressure (SP) and Verbal Interaction (VI). The subgroup objective was to determine any difference in the primary outcome between schools between and across quintile clusters (lower and higher)., Methods: Once schools were stratified into lower and higher quintile (which are defined according to geographical location, fee per school and resources) subgroup clusters, schools were assigned randomly to control and intervention groups consisting of grade 7 participants who were typically aged ≥ 11 years. Teachers received 1 h of training before administering the single-dose CCR intervention over a 60-90-min session. The CCR intervention included a social story, role-play and discussion. All participants viewed a video of a CWS and stuttering was defined at baseline. The SROM measured peer attitudes at six months after intervention. Randomisation was stratified by quintile group using a 1:1 allocation ratio. Full blinding was not possible; however, the outcome assessor was partially blinded and the analyst was also blinded. Generalised estimating equations (GEE) was used assuming an exchangeable correlation structure to analyse the data adopting an intention-to-treat principle. Multiple imputation was used to handle missing data. Criterion for statistical significance was set at alpha = 0.05., Results: Ten schools were randomly allocated to control (k = 5) and intervention groups (k = 5), with n = 223 participants allocated to intervention and n = 231 to control groups. A total of 454 participants completed the SROMs in control (n = 231) and intervention (n = 223) groups and were analysed at baseline and six months after intervention. There was no statistically significant difference on the global SROM score (mean difference - 0.11; 95% confidence interval [CI] - 1.56-1.34; p = 0.88). There were also no significant differences on SROM subscales: PSD (mean difference 1.04; 95% CI - 1.02-311; p = 0.32), SP (mean difference - 0.45; 95% CI - 1.22-0.26; p = 0.21) and VI (mean difference 0.05; 95% CI - 1.01-1.11; p = 0.93). Additionally, there was no significant subgroup effect on the global SROM score (lower versus higher quintile subgroups) (interaction p value = 0.52). No harms were noted or reported., Conclusion: No statistically significant differences were noted. It is possible that the time frame was too short to note changes in peer attitudes and that further study is required to confirm the findings of this study., Trial Registration: Clinicaltrials.gov, NCT03111524 . Registered on 9 March 2017.
- Published
- 2018
- Full Text
- View/download PDF
14. Study protocol: a randomized, double-blind, parallel, two-arm, placebo control trial investigating the feasibility and safety of immunoglobulin treatment in COPD patients for prevention of frequent recurrent exacerbations.
- Author
-
Cowan J, Mulpuru S, Aaron S, Alvarez G, Giulivi A, Corrales-Medina V, Thiruganasambandamoorthy V, Thavorn K, Mallick R, and Cameron DW
- Abstract
Background: Chronic obstructive pulmonary disease (COPD) is a chronic progressive inflammatory disease of the airways, associated with frailty, disability, co-morbidity, and mortality. Individuals with COPD experience increased risk and rates of acute exacerbation as their lung disease worsens. Current treatments to prevent acute exacerbation of COPD (AECOPD) are only modestly effective. New therapies are needed to improve the quality of life and clinical outcomes for individuals living with COPD and especially for those prone to frequent recurrent AECOPD. Recent research has suggested an association of gammaglobulin or immunoglobulin G levels with AECOPD and a favorable effect of an immunoglobulin treatment on the frequency of recurrent AECOPD, healthcare provider visits, treatments, and hospitalizations. However, control trials are required to confirm this apparent association and therapeutic effect. This study aims to assess if intravenous immunoglobulin (IVIG) therapy is feasible, safe, tolerable, and potentially effective in reducing the frequency of recurrent AECOPD., Methods/design: Adult COPD patients at The Ottawa Hospital (TOH) will be recruited to partake in a randomized double-blind, parallel, two-arm, placebo control trial. Eligible patients will be administered either IVIG or normal saline following 1:1 randomization and every 4 weeks for 1 year. The primary outcome of feasibility will be determined by recruitment, patient adherence, safety and tolerance, success of the follow-up procedures, and outcome measurement. The safety and tolerability will be assessed through adverse events, adherence, and study withdrawals. Efficacy trends will be investigated by assessing incidence rates of AECOPD, improvement in quality of life, and healthcare services use and cost., Discussion: The study results will inform larger studies designed to confirm a clinically significant therapeutic effect in identifiable populations which would be a major advance in the care of COPD patients., Trial Registration Number: ClinicalTrial.gov, NCT03018652 and NCT02690038., Competing Interests: The study protocol was approved by the OHRI Research Ethics Board (protocol number 20150925-01H, 20160077-01H and 20170005-01H). Not applicable The authors declare that they have no competing interests. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
- Published
- 2018
- Full Text
- View/download PDF
15. Tranexamic Acid versus Placebo to Prevent Blood Transfusion during Radical Cystectomy for Bladder Cancer (TACT): Study Protocol for a Randomized Controlled Trial.
- Author
-
Breau RH, Lavallée LT, Cnossen S, Witiuk K, Cagiannos I, Momoli F, Bryson G, Kanji S, Morash C, Turgeon A, Zarychanski R, Mallick R, Knoll G, and Fergusson DA
- Subjects
- Antifibrinolytic Agents adverse effects, Canada, Double-Blind Method, Drug Administration Schedule, Humans, Infusions, Intravenous, Multicenter Studies as Topic, Randomized Controlled Trials as Topic, Time Factors, Tranexamic Acid adverse effects, Treatment Outcome, Urinary Bladder Neoplasms pathology, Antifibrinolytic Agents administration & dosage, Blood Loss, Surgical prevention & control, Blood Transfusion, Cystectomy adverse effects, Tranexamic Acid administration & dosage, Urinary Bladder Neoplasms surgery
- Abstract
Background: Radical cystectomy for bladder cancer is associated with a high risk of needing red blood cell transfusion. Tranexamic acid reduces blood loss during cardiac and orthopedic surgery, but no study has yet evaluated tranexamic acid use during cystectomy., Methods: A randomized, double-blind (surgeon-, anesthesiologist-, patient-, data-monitor-blinded), placebo-controlled trial of tranexamic acid during cystectomy was initiated in June 2013. Prior to incision, the intervention arm participants receive a 10 mg/kg loading dose of intravenously administered tranexamic acid, followed by a 5 mg/kg/h maintenance infusion. In the control arm, the patient receives an identical volume of normal saline that is indistinguishable from the intervention. The primary outcome is any blood transfusion from the start of surgery up to 30 days post operative. There are no strict criteria to mandate the transfusion of blood products. The decision to transfuse is entirely at the discretion of the treating physicians who are blinded to patient allocation. Physicians are allowed to utilize all resources to make transfusion decisions, including serum hemoglobin concentration and vital signs. To date, 147 patients of a planned 354 have been randomized to the study., Discussion: This protocol reviews pertinent data relating to blood transfusion during radical cystectomy, highlighting the need to identify methods for reducing blood loss and preventing transfusion in patients receiving radical cystectomy. It explains the clinical rationale for using tranexamic acid to reduce blood loss during cystectomy, and outlines the study methods of our ongoing randomized controlled trial., Trial Registrations: Canadian Institute for Health Research (CIHR) Protocol: MOP-342559; ClinicalTrials.gov, ID: NCT01869413. Registered on 5 June 2013.
- Published
- 2018
- Full Text
- View/download PDF
16. The Classroom Communication Resource (CCR) intervention to change peer's attitudes towards children who stutter (CWS): study protocol for a randomised controlled trial.
- Author
-
Mallick R, Kathard H, Thabane L, and Pillay M
- Subjects
- Adolescent, Attitude, Bullying psychology, Child, Female, Humans, Male, Randomized Controlled Trials as Topic, Social Behavior, South Africa, Stuttering diagnosis, Time Factors, Bullying prevention & control, Child Behavior, Peer Group, School Health Services, Students psychology, Stuttering psychology
- Abstract
Background: Children who stutter (CWS) are at a high-risk of being teased and bullied in primary school because of negative peer attitudes and perceptions towards stuttering. There is little evidence to determine if classroom-based interventions are effective in changing peer attitudes towards stuttering. The primary objective is to determine the effect of the Classroom Communication Resource (CCR) intervention versus usual practice, measured using the Stuttering Resource Outcomes Measure (SROM) 6-months post-intervention among grade 7 students. The secondary objective is to investigate attitude changes towards stuttering among grade participants on the SROM subscales., Methods: A cluster randomised controlled trial (RCT) will be conducted with schools as the unit of randomization. Schools will be stratified into quintile groups, and then randomized to receive the CCR intervention or usual practice. Quintile stratification will be conducted in accordance to the Western Cape Department of Education classification of schools according to geographical location, fee per school and allocation of resources and funding. Participants will include primary schools in the lower (second and third) and higher (fourth and fifth) quintiles and children aged 11 years or older in grade 7 will be included. The study will consist of the CCR intervention program or usual practice as a no-CCR control. The CCR is a classroom-based, teacher led intervention tool including a story, role-play and discussion. The grade 7 teachers allocated to the CCR intervention, will be trained and will administer the intervention. The analysis will follow intention-to-treat (ITT) principle and generalized estimating equations (GEE) to compare groups on the global SROM and its subscales to account for possible clustering within schools. The subgroup hypothesis will be tested by adding an interaction term of quintile group x intervention., Discussion: This study is designed to assess whether the CCR intervention versus usual practice in schools will lead to positive shift in attitudes about stuttering at 6-months post-intervention among grade 7 participants., Trial Registration: The trial number is NCT03111524 . It was registered with clinical trials.gov Protocol registration and results system (PRS) retrospectively on 9 March 2017.
- Published
- 2018
- Full Text
- View/download PDF
17. The association of urinary sodium excretion and the need for renal replacement therapy in advanced chronic kidney disease: a cohort study.
- Author
-
Mazarova A, Molnar AO, Akbari A, Sood MM, Hiremath S, Burns KD, Ramsay TO, Mallick R, Knoll GA, and Ruzicka M
- Subjects
- Aged, Aged, 80 and over, Disease Progression, Female, Follow-Up Studies, Humans, Kidney Failure, Chronic mortality, Male, Middle Aged, Renal Replacement Therapy, Retrospective Studies, Survival Rate, Diet, Sodium-Restricted, Glomerular Filtration Rate, Kidney Failure, Chronic physiopathology, Kidney Failure, Chronic therapy, Sodium urine, Sodium, Dietary administration & dosage
- Abstract
Background: Restriction of dietary sodium is routinely recommended for patients with chronic kidney disease (CKD). Whether or not sodium intake is associated with the progression of CKD and mortality remains controversial. We evaluated the association of urinary sodium excretion (as a surrogate for sodium intake) on the need for renal replacement therapy and mortality in patients with advanced CKD., Methods: We conducted a retrospective study of patients followed at a CKD clinic of a tertiary care hospital from January 2010 to December 2012. Adult patients with advanced CKD (estimated glomerular filtration rate (eGFR) <30 ml/min/1.73 m(2)) were included. Using a time-to-event analysis, we examined the association of urinary sodium excretion as a continuous and also as a categorical variable (categorized as low sodium diet - LSD (<100 mEq/day), medium sodium diet - MSD (100-150 mEq/day), and high sodium diet - HSD (>150 mEq/day) and the outcomes of interest. The primary outcome was defined as composite of progression to end-stage renal disease requiring any type of renal replacement therapy and mortality. The secondary outcome was change in eGFR/year., Results: 341 patients (82 LSD, 116 MSD and 143 HSD) were included in the study (mean follow up of 1.5 years) with a mean eGFR decline of 2.7 ml/min/1.73 m(2)/year. 105 patients (31 %) required renal replacement therapy and 10 (3 %) died. There was no association between urinary sodium excretion and change in the eGFR or need for renal replacement therapy and mortality in crude or adjusted models (unadjusted HR 1.002; 95%CI 1.000-1.004, adjusted HR 1.001; 95%CI 0.998-1.004)., Conclusion: In patients with advanced CKD (eGFR < 30 ml/min/1.73 m(2)), sodium intake does not appear to impact the progression of CKD to end-stage renal disease; however, more definitive studies are needed.
- Published
- 2016
- Full Text
- View/download PDF
18. Erratum to: A protocol for a systematic review of the diagnostic accuracy of blood markers, synovial fluid, and tissue testing in periprosthetic joint infections (PJI).
- Author
-
Beaule PE, Shea B, Abdelbary H, Ahmadzai N, Skidmore B, Mallick R, Hutton B, Bunting AC, Moran J, Ward R, and Moher D
- Published
- 2016
- Full Text
- View/download PDF
19. A protocol for a systematic review of the diagnostic accuracy of blood markers, synovial fluid, and tissue testing in periprosthetic joint infections (PJI).
- Author
-
Beaule PE, Shea B, Abedlbary H, Ahmadzai N, Skidmore B, Mallick R, Hutton B, Bunting AC, Moran J, Ward R, and Moher D
- Subjects
- Biomarkers blood, Early Diagnosis, Evidence-Based Medicine, Humans, Practice Guidelines as Topic, Research Design, Synovial Membrane microbiology, Systematic Reviews as Topic, Arthroplasty, Replacement adverse effects, Blood Sedimentation, C-Reactive Protein metabolism, Prosthesis-Related Infections diagnosis, Synovial Fluid microbiology, Synovial Membrane pathology
- Abstract
Background: Total joint replacement (TJR) procedures have been one of the most rewarding interventions for treating patients suffering from joint disease. However, developing a periprosthetic joint infection (PJI) is a serious complication that is associated with the highest burden of cost and reduction in patients' quality of life compared to other complications following TJRs. One of the main challenges facing clinicians who are treating PJIs is accurately diagnosing infection in a timely fashion. Multiple orthopedic associations have published clinical guidelines for diagnosing PJI which are based solely on consensus approaches, expert opinions, and narrative reviews. We believe that a higher quality of scientific rigor is necessary to establish a diagnostic guideline that represents current evidence more accurately and that identifies important knowledge gaps in PJI diagnosis. Therefore, we will conduct a systematic review on diagnostic performance of blood markers, synovial fluids, and tissue tests for diagnosing PJI., Methods/design: Electronic search strategies will be developed and tested by an experienced medical information specialist in consultation with the review team, and gray literature will be searched using the checklist from CADTH's Grey Matters Light. Two reviewers will independently screen the literature for inclusion using the prespecified eligibility criteria. Non-English language and animal-only studies will be excluded. Quality assessment and data extractions by reviewers will be verified, and disagreements will be resolved through consensus or third party adjudication. We will assess the quality of individual studies using the QUADAS-2 tool and use GRADE to summarize the strength of body of evidence. Analyses of evidence will be conducted in accordance with the Cochrane Handbook for Diagnostic Test Accuracy Reviews., Discussion: We will conduct a systemic review of tests (blood markers, synovial fluids, and tissue testing) for diagnosing PJI in patients' knee, hip, and shoulder joint replacements. This will be the first scientifically rigorous and comprehensive systematic review in the field and may feed into an evidence-based clinical practice guideline. We will compare the findings of this review with the consensus-based guides and discuss the differences, similarities, and knowledge gaps., Systematic Review Registration: PROSPERO CRD42015023768.
- Published
- 2015
- Full Text
- View/download PDF
20. Implementation of a cystic fibrosis lung transplant referral patient decision aid in routine clinical practice: an observational study.
- Author
-
Stacey D, Vandemheen KL, Hennessey R, Gooyers T, Gaudet E, Mallick R, Salgado J, Freitag A, Berthiaume Y, Brown N, and Aaron SD
- Subjects
- Adult, Aged, Canada, Decision Making, Female, Humans, Inservice Training, Male, Middle Aged, Nurses, Pharmacists, Physicians, Prospective Studies, Time Factors, Attitude of Health Personnel, Cystic Fibrosis surgery, Decision Support Techniques, Lung Transplantation methods, Patient Participation methods
- Abstract
Background: The decision to have lung transplantation as treatment for end-stage lung disease from cystic fibrosis (CF) has benefits and serious risks. Although patient decision aids are effective interventions for helping patients reach a quality decision, little is known about implementing them in clinical practice. Our study evaluated a sustainable approach for implementing a patient decision aid for adults with CF considering referral for lung transplantation., Methods: A prospective pragmatic observational study was guided by the Knowledge-to-Action Framework. Healthcare professionals in all 23 Canadian CF clinics were eligible. We surveyed participants regarding perceived barriers and facilitators to patient decision aid use. Interventions tailored to address modifiable identified barriers included training, access to decision aids, and conference calls. The primary outcome was >80% use of the decision aid in year 2., Results: Of 23 adult CF clinics, 18 participated (78.2%) and 13 had healthcare professionals attend training. Baseline barriers were healthcare professionals' inadequate knowledge for supporting patients making decisions (55%), clarifying patients' values for outcomes of options (58%), and helping patients handle conflicting views of others (71%). Other barriers were lack of time (52%) and needing to change how transplantation is discussed (42%). Baseline facilitators were healthcare professionals feeling comfortable discussing bad transplantation outcomes (74%), agreeing the decision aid would be easy to experiment with (71%) and use in the CF clinic (87%), and agreeing that using the decision aid would not require reorganization of the CF clinic (90%). After implementing the decision aid with interventions tailored to the barriers, decision aid use increased from 29% at baseline to 85% during year 1 and 92% in year 2 (p < 0.001). Compared to baseline, more healthcare professionals at the end of the study were confident in supporting decision-making (p = 0.03) but continued to feel inadequate ability with supporting patients to handle conflicting views (p = 0.01)., Conclusion: Most Canadian CF clinics agreed to participate in the study. Interventions were used to target identified modifiable barriers to using the patient decision aid in routine CF clinical practice. CF clinics reported using it with almost all patients in the second year.
- Published
- 2015
- Full Text
- View/download PDF
21. Low-molecular-weight heparin for prevention of placenta-mediated pregnancy complications: protocol for a systematic review and individual patient data meta-analysis (AFFIRM).
- Author
-
Rodger MA, Langlois NJ, de Vries JI, Rey E, Gris JC, Martinelli I, Schleussner E, Ramsay T, Mallick R, Skidmore B, Middeldorp S, Bates S, Petroff D, Bezemer D, van Hoorn ME, Abheiden CN, Perna A, de Jong P, and Kaaja R
- Subjects
- Female, Guidelines as Topic, Humans, Information Storage and Retrieval, Pregnancy, Pregnancy Complications etiology, Randomized Controlled Trials as Topic, Review Literature as Topic, Systematic Reviews as Topic, Meta-Analysis as Topic, Heparin, Low-Molecular-Weight therapeutic use, Placenta Diseases prevention & control, Pregnancy Complications prevention & control
- Abstract
Background: Placenta-mediated pregnancy complications include pre-eclampsia, late pregnancy loss, placental abruption, and the small-for-gestational age newborn. They are leading causes of maternal, fetal, and neonatal morbidity and mortality in developed nations. Women who have experienced these complications are at an elevated risk of recurrence in subsequent pregnancies. However, despite decades of research no effective strategies to prevent recurrence have been identified, until recently. We completed a pooled summary-based meta-analysis that strongly suggests that low-molecular-weight heparin reduces the risk of recurrent placenta-mediated complications. The proposed individual patient data meta-analysis builds on this successful collaboration. The project is called AFFIRM, An individual patient data meta-analysis oF low-molecular-weight heparin For prevention of placenta-medIated pRegnancy coMplications., Methods/design: We conducted a systematic review to identify randomized controlled trials with a low-molecular-weight heparin intervention for the prevention of recurrent placenta-mediated pregnancy complications. Investigators and statisticians representing eight trials met to discuss the outcomes and analysis plan for an individual patient data meta-analysis. An additional trial has since been added for a total of nine eligible trials. The primary analyses from the original trials will be replicated for quality assurance prior to recoding the data from each trial and combining it into a common dataset for analysis. Using the anonymized combined data we will conduct logistic regression and subgroup analyses aimed at identifying which women with previous pregnancy complications benefit most from treatment with low-molecular-weight heparin during pregnancy., Discussion: The goal of the proposed individual patient data meta-analysis is a thorough estimation of treatment effects in patients with prior individual placenta-mediated pregnancy complications and exploration of which complications are specifically prevented by low-molecular-weight heparin., Systematic Review Registration: PROSPERO (International Prospective Registry of Systematic Reviews) 23 December 2013, CRD42013006249.
- Published
- 2014
- Full Text
- View/download PDF
22. MicroRNAs and lung cancer: Biology and applications in diagnosis and prognosis.
- Author
-
Mallick R, Patnaik SK, and Yendamuri S
- Abstract
MicroRNAs are tiny non-coding RNA molecules which play important roles in the epigenetic control of cellular processes by preventing the translation of proteins from messenger RNAs (mRNAs). A single microRNA can target different mRNAs, and an mRNA can be targeted by multiple microRNAs. Such complex interplays underlie many molecular pathways in cells, and specific roles for many microRNAs in physiological as well as pathological phenomena have been identified. Changes in expression of microRNAs have been associated with a wide variety of disease conditions, and microRNA-based biomarkers are being developed for the identification and monitoring of such states. This review provides a general overview of the current state of knowledge about the biology of microRNAs, and specific information about microRNAs with regard to the diagnosis and prognosis of lung cancer.
- Published
- 2010
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.