Publications by authors named "Luis Furuya Kanamori"

Background: Japanese encephalitis virus (JEV) is a leading cause of viral encephalitis in Asia, with high case-fatality rate and morbidity. Although the live recombinant Japanese encephalitis chimeric vaccine (Imojev®) offers strong initial immunity, data on long-term efficacy beyond five years remain limited.

Methods: We conducted a cross-sectional study on adults vaccinated with Imojev® at a specialist travel clinic in Brisbane, Australia.

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Objectives: The objective was to investigate the role of double extraction in reducing data errors in evidence synthesis for pharmaceutical and non-pharmaceutical interventions.

Design: Crossover randomized controlled trial (RCT).

Setting: University and hospital with teaching programs in evidence-based medicine.

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Article Synopsis
  • Trial registration is essential for reducing bias and enhancing transparency in clinical research, particularly regarding medication trials.
  • This study examined how trial registration status affects harm estimates in randomized controlled trials, analyzing data from systematic reviews published between 2015 and 2020.
  • Results showed that prospectively registered trials reported higher odds of harm compared to non-registered and retrospectively registered trials, while no significant difference was found between non-registered and retrospectively registered trials.
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RobotReviewer is a tool for automatically assessing the risk of bias in randomized controlled trials, but there is limited evidence of its reliability. We evaluated the agreement between RobotReviewer and humans regarding the risk of bias assessment based on 1955 randomized controlled trials. The risk of bias in these trials was assessed via two different approaches: (1) manually by human reviewers, and (2) automatically by the RobotReviewer.

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Introduction: In recent decades, clinical research has seen significant advancements, both in the generation and synthesis of evidence through meta-analyses. Despite these methodological advancements, there is a growing concern about the accumulation of repetitive and redundant literature, potentially contributing to research waste. This highlights the necessity for a mechanism to determine when a meta-analysis has conclusively addressed a research question, signaling no further need for additional studies-a concept we term an "exit" meta-analysis.

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Background: Understanding mortality among travellers is essential for mitigating risks and enhancing travel safety. However, limited evidence exists on severe illnesses and injuries leading to death among travellers, particularly in low- and middle-income countries and remote regions.

Methods: We conducted a retrospective census study using country-level observational data from death certificates of travellers of seven South American countries (Argentina, Brazil, Chile, Colombia, Ecuador, Peru, and Uruguay) from 2017 to 2021.

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Background: Standard systematic review can be labor-intensive and time-consuming meaning that it can be difficult to provide timely evidence when there is an urgent public health emergency such as a pandemic. The ClinicalTrials.gov provides a promising way to accelerate evidence production.

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Joint infections cause significant morbidity and mortality. Rapid diagnosis enables prompt initiation of appropriate antimicrobial therapy and surgical treatment. We conducted a systematic review and meta-analysis to evaluate the accuracy of genus- or species-specific polymerase chain reaction (PCR) in diagnosing joint infections.

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Background: Immunisation against herpes zoster is recommended for adults aged ≥ 50 years. Two vaccines, a live attenuated (ZVL, Zostavax®) and an adjuvant recombinant subunit (HZ/su, Shingrix®), are available in Australia. Immunisation guidelines are shifting their recommendations towards HZ/su because of higher efficacy in preventing herpes zoster and associated complications.

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Background: Evidence about the clinical impact of rapid diagnostic tests (RDTs) for the diagnosis of bloodstream infections is limited, and whether RDT are superior to conventional blood cultures (BCs) embedded within antimicrobial stewardship programs (ASPs) is unknown.

Methods: We performed network meta-analyses using results from studies of patients with bloodstream infection with the aim of comparing the clinical impact of RDT (applied on positive BC broth or whole blood) to conventional BC, both assessed with and without ASP with respect to mortality, length of stay (LOS), and time to optimal therapy.

Results: Eighty-eight papers were selected, including 25 682 patient encounters.

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Article Synopsis
  • China was certified malaria-free by the World Health Organization in 2021, but the risk of locally transmitted cases from returned travelers remains a public health concern.
  • A review of malaria cases in China from 2013 to 2022 showed a decline in cases, with the majority being imported; the last locally acquired case was noted in 2017.
  • Strengthening travel medicine services is essential to manage the risks associated with travelers returning from malaria-endemic countries and to support continued malaria elimination efforts in China.
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Article Synopsis
  • There's an increasing number of vulnerable travelers worldwide, but research on their specific health risks is sparse, indicating a need for more studies.
  • The existing definitions of who qualifies as a "traveler" vary greatly, creating confusion in understanding this group.
  • Many travel-related publications don't align well with the actual number of travelers, highlighting gaps in research and reporting.
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  • The study investigates how the lack of blinding in randomized controlled trials affects the estimation of medication-related harms, highlighting that this issue is often overlooked.
  • Researchers analyzed 629 meta-analyses involving over 10,000 trials, focusing on both blinded and non-blinded conditions, and found that non-blinded trials tended to significantly underestimate harms.
  • The results suggest that not properly blinding participants and healthcare providers can lead to flawed assessments of medication risks, emphasizing the importance of adequate blinding in trials when possible.
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Article Synopsis
  • - This review investigates the prevalence of sexually transmitted infections (STIs) and blood-borne viruses (BBVs) among international travellers, highlighting the role of this population in spreading infectious diseases.
  • - A comprehensive search of various databases resulted in 32 studies analyzing the morbidity and prevalence of STIs across different types of travellers, such as tourists, students, and men who have sex with men (MSM).
  • - Key findings reveal that VFRs, backpackers, and MSM exhibited the highest rates of STIs, both in symptomatic (like syphilis and chlamydia) and asymptomatic cases (such as HIV and hepatitis B).
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Introduction: Several methods exist for bias adjustment of meta-analysis results, but there has been no comprehensive comparison with unadjusted methods. We compare 6 bias-adjustment methods with 2 unadjusted methods to examine how these different methods perform.

Methods: We re-analyzed a meta-analysis that included 10 randomized controlled trials.

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Background: Casual sex during travel is a major preventable factor in the global transmission of sexually transmissible infections (STI). Pre-travel consults present an excellent opportunity for practitioners to educate travellers about sexual and reproductive health (SRH) and safety. This scoping review aims to explore and understand the extent to which SRH is included in pre-travel consultations.

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Context: Central venous access device (CVAD) locks are routine interventions used to prevent and treat complications, such as infection, thrombosis, and catheter occlusion.

Objective: To compare and rank lock-solutions for prevention or treatment of complications in pediatrics. Design Systematic review and network meta-analysis.

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Background: International travel can increase the risk of exposure to infectious diseases including sexually transmissible infections (STI). Pre-travel medical consultation provides an opportunity for travel-related health risk assessments and advice. This study explored how travel medicine clinicians integrate sexual and reproductive health (SRH) services into clinical practice.

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Background: In oncology clinical trials, there is the assumption that randomization sufficiently balances confounding covariates and therefore average treatment effects are usually reported. This paper explores the wider benefits provided by conditioning on covariates for reasons other than mitigation of confounding.

Methods: We reanalyzed the data from primary randomized controlled trials listed in two meta-analyses to explore the significance of conditioning on smoking status in terms of the effect magnitude of treatment on progression free survival in non-small cell lung cancer.

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Background: The wellbeing and safety of international tourists is a paramount concern for governments and stakeholders. Mortality among travellers and the causes of death serve as a significant metric of destination safety. We describe the epidemiology and causes of death among international travellers in Peru.

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Background: Malaria continues to pose a significant burden in endemic countries, many of which lack access to molecular surveillance. Insights from malaria cases in travellers returning to non-endemic areas can provide valuable data to inform endemic country programmes. To evaluate the potential for novel global insights into malaria, we examined epidemiological and molecular data from imported malaria cases to Australia.

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Objectives: This population-based study aimed to investigate the risk factors and effect of extended-spectrum beta-lactamase (ESBL) production on clinical outcomes in Escherichia coli bloodstream infection (BSI) patients.

Methods: The study population was defined as patients aged ≥15 years with E. coli BSI in Queensland, Australia, from 2000 to 2019.

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