The ion channel basis of pharmacological effects of amiodarone on myocardial electrophysiological properties, a comprehensive review.

Amiodarone is a benzofuran-based class III antiarrhythmic agent frequently used for the treatment of atrial and ventricular arrhythmias. The primary target of class III antiarrhythmic drugs is the cardiac human ether-a-go-go-related gene (hERG) encoded channel, KCNH2, commonly known as HERG, that conducts the rapidly activating delayed rectifier potassium current (I). Like other class III antiarrhythmic drugs, amiodarone exerts its physiologic effects mainly through I blockade, delaying the repolarization phase of the action potential and extending the effective refractory period.

An Economic Analysis of SC24 in Canada: A Randomized Study of SBRT Compared With Conventional Palliative RT for Spinal Metastases.

Purpose: The Canadian Cancer Trials Group (CCTG) Symptom Control 24 protocol (SC.24) was a multicenter randomized controlled phase 2/3 trial conducted in Canada and Australia. Patients with painful spinal metastases were randomized to either 24 Gy/2 stereotactic body radiation therapy (SBRT) or 20 Gy/5 conventional external beam radiation therapy (CRT).

A randomised controlled trial of a nutrition and a decision support intervention to enable partnerships with families of critically ill patients.

Aims And Objectives: The aim of the study was to investigate the effect of supporting family members to partner with health professionals on nutrition intakes and decision-making and to evaluate intervention and study feasibility.

Background: Family partnerships can improve outcomes for critically ill patients and family members. Interventions that support families to engage with health professionals require evaluation.

Implication of inflammation on Coxsackie virus and Adenovirus receptor expression on cardiomyocytes and the role of platelets in patients with dilated cardiomyopathy.

Background: Coxsackie Virus and Adenovirus Receptor (CXADR or CAR) is involved in the pathogenesis of inflammatory dilated cardiomyopathy (DCM). We aimed to examine the relationship of CAR expression on platelets and cardiomyocytes with virus persistence, local and systemic inflammation and platelet activity in patients with DCM.

Methods: Endomyocardial biopsy (EMB) samples of 38 patients (mean age 39.

Mature Local Control and Reirradiation Rates Comparing Spine Stereotactic Body Radiation Therapy With Conventional Palliative External Beam Radiation Therapy.

Purpose: Stereotactic body radiation therapy (SBRT) improves complete pain response for painful spinal metastases compared with conventional external beam radiation therapy (cEBRT). We report mature local control and reirradiation rates in a large cohort of patients treated with SBRT versus cEBRT enrolled previously in the Canadian Clinical Trials Group Symptom Control 24 phase 2/3 trial.

Methods And Materials: One hundred thirty-seven of 229 (60%) patients randomized to 24 Gy in 2 SBRT fractions or 20 Gy in 5 cEBRT fractions were retrospectively reviewed.

Twelve tips for introducing E-Portfolios in health professions education.

Portfolios have been used in health professions for many decades as a means of documenting reflective practice that inform change, supports the understanding of professionals' development needs and changing care options for clients. Electronic versions of one's portfolio of evidence or E-Portfolios became more prevalent in the early 2000s as a repository to store evidence and reflections. However, in recent years E-Portfolios have evolved from a repository to an articulation of authentic learning and development.

Stereotactic body radiotherapy versus conventional external beam radiotherapy in patients with painful spinal metastases: an open-label, multicentre, randomised, controlled, phase 2/3 trial.

Background: Conventional external beam radiotherapy is the standard palliative treatment for spinal metastases; however, complete response rates for pain are as low as 10-20%. Stereotactic body radiotherapy delivers high-dose, ablative radiotherapy. We aimed to compare complete response rates for pain after stereotactic body radiotherapy or conventional external beam radiotherapy in patients with painful spinal metastasis.

Peptidomics of .

The nematode (the barber's pole worm) is an endoparasite infecting wild and domesticated ruminants worldwide. Widespread anthelmintic resistance of requires alternative strategies to control this parasite. Neuropeptide signaling represents a promising target for anthelmintic drugs.

Fatigue, anxiety, depression and sleep quality in patients undergoing haemodialysis.

Objective: Patients undergoing haemodialysis may experience troubling symptoms such as fatigue, anxiety, depression and sleep quality, which may affect their quality of life. The main objective of this study is to determine the prevalence of fatigue, anxiety, depression and sleep quality among patients receiving haemodialysis during the coronavirus disease 2019 (COVID-19) pandemic, and to explore the contributing predictors.

Methods: A cross-sectional and descriptive correlational design using Qualtrics software was performed.

Nurse-perceived facilitators and barriers to palliative care in patients with kidney disease: A European Delphi survey.

Background: The palliative care phenomenon is increasingly invested in all medicine and nursing fields, as care for people with kidney disease who do not wish to embark on dialysis: it encompasses a palliative approach to shared decision-making. To deliver patient-centred optimal care, nephrology healthcare staff should be knowledgeable about palliative care and the appropriate conservative management approach.

Objective: This paper aimed to explore, using a Delphi survey, the barriers and facilitators to palliative care in patients with kidney disease.

Health care utilization prior to out-of-hospital cardiac arrest: A population-based study.

Introduction: Although out-of-hospital cardiac arrest (OHCA) is thought of as a sudden event, recent studies suggest that many patients have symptoms or have sought medical attention prior to their arrest. Our objective was to evaluate patterns of healthcare utilization before OHCA.

Methods: We conducted a population-based cohort study in Ontario, Canada, which included all patients ≥20 years, who suffered out-of-hospital cardiac arrest and transferred to an emergency department (ED) from 2007 to 2018.

Are one-stop centres an appropriate model to deliver services to sexually abused children in urban Malawi?

Background: The Republic of Malawi is creating a country-wide system of 28 One-Stop Centres (known as 'Chikwanekwanes' - 'everything under one roof') to provide medical, legal and psychosocial services for survivors of child maltreatment and adult intimate partner violence. No formal evaluation of the utility of such services has ever been undertaken. This study focused on the experiences of the families served at the country's first Chikwanekwane in the large, urban city of Blantyre.

Prospective patient stratification into robust cancer-cell intrinsic subtypes from colorectal cancer biopsies.

Colorectal cancer (CRC) biopsies underpin accurate diagnosis, but are also relevant for patient stratification in molecularly-guided clinical trials. The consensus molecular subtypes (CMSs) and colorectal cancer intrinsic subtypes (CRISs) transcriptional signatures have potential clinical utility for improving prognostic/predictive patient assignment. However, their ability to provide robust classification, particularly in pretreatment biopsies from multiple regions or at different time points, remains untested.

The rumen microbiome: an underexplored resource for novel antimicrobial discovery.

Antimicrobial peptides (AMPs) are promising drug candidates to target multi-drug resistant bacteria. The rumen microbiome presents an underexplored resource for the discovery of novel microbial enzymes and metabolites, including AMPs. Using functional screening and computational approaches, we identified 181 potentially novel AMPs from a rumen bacterial metagenome.

Open Bankart Revisited.

The surgical treatment of anterior shoulder instability can present a dilemma. Historically, an open Bankart repair was the benchmark solution. Over the last decade as surgeons became more arthroscopically savvy, the pendulum swung and a paradigm shift occurred.

Fibrin clot structure is affected by levels of particulate air pollution exposure in patients with venous thrombosis.

Background: Particulate air pollution is a risk factor for cardiovascular diseases and thrombosis. Long-term exposure to particulate matter with a diameter<10μm (PM10) has been associated with an increased risk of venous thrombosis.

Objectives: The aim of this study was to investigate whether or not particulate air pollution alters fibrin clot structure and thus modulates thrombosis risk.

Asthma control and exacerbations: two different sides of the same coin.

Purpose Of Review: Optimal asthma management includes both the control of asthma symptoms and reducing the risk of future asthma exacerbations. Traditionally, treatment has been adjusted largely on the basis of symptoms and lung function and for many patients, this approach delivers both excellent symptom control and reduced risk. However, the relationship between these two key components of the disease may vary between different asthmatic phenotypes and disease severities and there is increasing recognition of the need for more individualized treatment approaches.

Research in progress: Medical Research Council United Kingdom Refractory Asthma Stratification Programme (RASP-UK).

The UK Refractory Asthma Stratification Programme (RASP-UK) will explore novel biomarker stratification strategies in severe asthma to improve clinical management and accelerate development of new therapies. Prior asthma mechanistic studies have not stratified on inflammatory phenotype and the understanding of pathophysiological mechanisms in asthma without Type 2 cytokine inflammation is limited. RASP-UK will objectively assess adherence to corticosteroids (CS) and examine a novel composite biomarker strategy to optimise CS dose; this will also address what proportion of patients with severe asthma have persistent symptoms without eosinophilic airways inflammation after progressive CS withdrawal.