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Filter by:The investigators aim to emulate a target trial to compare the risk of acute decompensated heart failure in users of methylprednisolone compared to prednisolone. The exposure is prescriptions of methylprednisolone or prednisolone tablets and the primary outcome is heart failure hospitalizations within the following 6 months, i.e. acute contacts with secondary or tertiary health care resulting in a primary diagnosis of heart failure. Secondary outcomes include broader heart failure diagnoses and the initiation of loop diuretics. Data preparation includes an initial observation period of 2 years, inclusion criteria such as age, corticosteroid formulation types / dosages and prescription codes, as well as removal of duplicate prescriptions and measures to reduce potential carry-over effects.
With the advancement of sports science, Post-Activation Potentiation (PAP) has become a focal point of research, garnering significant attention for its underlying physiological mechanisms. Current studies suggest three primary mechanisms: 1) phosphorylation of myosin regulatory light chains (RLCs); 2) increased recruitment of high-threshold motor units; and 3) a reduction in sarcomere length heterogeneity within muscle fibers due to pre-stimulation (Liu & Li, 2017). These mechanisms collectively contribute to an effect known as Post-Activation Performance Enhancement (PAPE), which significantly enhances muscle strength and explosiveness shortly after activation (Blazevich & Babault, 2019). During the activation process of motor units with increasing loads, low-threshold motor units are recruited first, followed by high-threshold motor units. As the load increases, the root mean square (RMS) value increases linearly, further promoting the overlap of motor unit potentials and the rise in RMS values. This overlap in activation timing among adjacent motor units results in greater overall muscle force output (Liu, 2008; Tian, 2009). The significance of this lies in the fact that as the degree of muscle activation increases, especially under incremental loads, the muscle's ability to adapt to subsequent strength or explosive tasks may be enhanced. In competitive sports, optimizing the relationship between warm-up and performance is crucial. Research indicates that the duration of PAPE varies with individual differences, training type, intensity, and recovery intervals. The characteristics of the PAPE effect also differ. Additionally, following constant loads, the enhancement and decay rates of performance in PAPE show varying rates at different times, and these rates do not exhibit a symmetrical linear change in absolute value (Liang, M 2020; Guo, W et al. 2018; Liu, R and Li, Q. 2017). The competition pace in sports demands precise modulation of performance enhancement rates after activation, and athletes can leverage these characteristics by selecting appropriate loading forms to trigger PAPE at critical moments in competition. To explore the enhancement or decay rates of performance over different time domains, our research team designed a protocol consisting of incremental loads.
This was a non-interventional (observational), retrospective, cohort study of women with hormone receptor (HR)-positive and human epidermal growth factor receptor-type 2 (HER2)-negative advanced breast cancer who started treatment with cyclin-dependent kinase inhibitors (CDKi) 4/6 (ribociclib or palbociclib) in Portugal. This was a study of medication use patterns, based on information from the hospital pharmacies of the participating centers. Patients who started a CDKi 4/6 (ribociclib or palbociclib) between 1 March 2019 and 31 December 2019 were included and followed through 24 months. A follow-up occurred 6 months after the start of CDKi 4/6 (ribociclib or palbociclib) to quantify the occurrence of dose changes.
The goal of this observational study is to assess the effect of living alone on total hip arthroplasty thirty-day outcomes. The main questions it aims to answer are: Is living alone associated with discharge disposition (home versus non-home)? Is living alone associated with greater incidences of secondary adverse events? Participants will be sampled from the 2021 American College of Surgeons National Surgical Quality Improvement Program
To develop and externally validate a risk prediction model for postoperative acute kidney injury (PO-AKI) in elderly patients undergoing major noncardiac surgery, addressing the current gap in predictive tools for this vulnerable population. The endpoint was the occurrence of PO-AKI within seven days following surgery. Diagnoses were based on the Kidney Disease: Improving Global Outcomes (KDIGO) criterion. Potential PO-AKI-related perioperative data were retrieved and extracted from electronic medical record for model derivation and validation. Clinicians may consider implementing this externally validated risk prediction model to stratify elderly patients' PO-AKI risks in the early postoperative phases of noncardiac surgery in elderly patients.
The aim of the study is to demonstrate the efficacy of PENG block as the main anesthetic technique to manage perioperative analgesia for hip fracture surgery compared to femoral and obturator nerve block in patients with contraindications to spinal anesthesia.
Prospective, single center, single arm, open label study to evaluate the efficacy and safety of treatment with LinearFirm(ULTRAcel Q+) in temporary eyebrow lifting
The clinical trial aimes to evaluate multiple large language models in respiratory disease consultations by comparing their performance to that of human doctors across three major medical consultation scenarios. The main question aims to answer are: - How do large language models perform in comparison to human doctors in diagnosing and consulting on respiratory diseases across various clinical scenarios? In three clinical scenarios including the online query section, the disease diagnosis section and the medical explanation section, research assistants or volunteers will be asked to cross-question all LLMs or real doctors using predefined online questions and their own issues. After each questioning session, a short washout period is implemented to eliminate potential biases.
Aim: This randomized controlled clinical study aimed to compare direct composite resin restorations and Computer Aided Design-Computer Aided Manufacturing (CAD-CAM) supported inlay or onlay restorations in young permanent molar teeth with hypomineralization. The main questions aim to answer are: - The clinical success rate of CAD-CAM supported restorations - The highest clinical success rate for restoring hypomineralized teeth. Materials and method: Children aged 6-14 years old without any systemic conditions with 32 first and second hypomineralized permanent molar teeth were included in the study. Patients were randomly distributed into 2 groups as direct composite resin restorations and CAD-CAM supported inlay or onlay restorations. All restored teeth were evaluated clinically and radiographically for 24-months. Statistical significance was accepted as p<0.05.
The goal of this randomized controlled trial is to compare the effects of a clinical decision support tool consisting of a 48-hour stop order for indwelling urinary catheters versus no clinical decision support in hospitalized patients with indwelling urinary catheters. The main questions it aims to answer are: - Does the presence of an automated stop order integrated as part of a clinical decision support tool reduce dwell time of urinary catheters and the rate of catheter associated urinary tract infections? Participants who have indwelling urinary catheters ordered will be randomized to either have these orders automatically expire after 48 hours unless an action is taken or have orders without expiration. Researchers will compare the urinary catheter dwell time and the rate of catheter associated urinary tract infections between the two groups.