Healthcare-associated viral respiratory infections at a Canadian tertiary pediatric hospital: a seven-year retrospective analysis.

Healthcare-associated viral respiratory infections (HA-VRIs) in a pediatric hospital decreased from 1.44 per 1000 patient days in 2019-0.43 and 0.

Prolonged Fever After the Treatment of Ulcerative Colitis in an Adolescent.

A 17-year-old female was diagnosed with inflammatory bowel disease and started on infliximab. A few weeks after starting infliximab, she developed a recurrence of daily fevers associated with an intermittent dry cough, which worsened over the course of a month. A chest radiograph, abdominal ultrasound, and computed tomography scan of the chest and abdomen revealed a heterogeneous spleen with multiple hyperechoic areas, tiny splenic micronodules, and diffuse micronodularity throughout the lungs.

Concentration-Dependent Effects of Curcumin on Membrane Permeability and Structure.

Growing evidence suggests that many bioactive molecules can nonspecifically modulate the physicochemical properties of membranes and influence the action of embedded membrane proteins. This study investigates the interactions of curcumin with protein-free model membranes consisting of 1,2-dioleoyl--glycero-3-phosphocholine (DOPC) and DOPC with cholesterol (4/1 mol ratio). The focus is on the capability of curcumin to modify membrane barrier properties such as water permeability assayed through the droplet interface bilayer (DIB) model membrane.

Differential Effects of Soy Isoflavones on the Biophysical Properties of Model Membranes.

The effects that the main soy isoflavones, genistein and daidzein, have upon the biophysical properties of a model lipid bilayer composed of 1,2-dioleoyl--glycero-3-phosphocholine (DOPC) or DOPC with cholesterol (4 to 1 mol ratio) have been investigated by transbilayer water permeability, differential scanning calorimetry, and confocal Raman microspectroscopy. Genistein is found to increase water permeability, decrease phase transition temperature, reduce enthalpy of transition, and induce packing disorder in the DOPC membrane with an increasing concentration. On the contrary, daidzein decreases water permeability and shows negligible impact on thermodynamic parameters and packing disorder at comparable concentrations.

Canadian critical care nurses experiences on the front lines of the COVID-19 pandemic: a qualitative descriptive study.

Background: Recent pandemics have provided important lessons to inform planning for public health emergencies. Despite these lessons, gaps in implementation during the COVID-19 pandemic are evident. Additionally, research to inform interventions to support the needs of front-line nurses during a prolonged pandemic are lacking.

Evaluation and Management of Primary Hyperparathyroidism: Summary Statement and Guidelines from the Fifth International Workshop.

The last international guidelines on the evaluation and management of primary hyperparathyroidism (PHPT) were published in 2014. Research since that time has led to new insights into epidemiology, pathophysiology, diagnosis, measurements, genetics, outcomes, presentations, new imaging modalities, target and other organ systems, pregnancy, evaluation, and management. Advances in all these areas are demonstrated by the reference list in which the majority of listings were published after the last set of guidelines.

Management of Primary Hyperparathyroidism.

Since the last international guidelines were published in 2014 on the evaluation and management of primary hyperparathyroidism (PHPT), new information has become available with regard to evaluation, diagnosis, epidemiology, genetics, classical and nonclassical manifestations, surgical and nonsurgical approaches, and natural history. To provide the most current summary of these developments, an international group, consisting of over 50 experts in these various aspects of PHPT, was convened. This paper provides the results of the task force that was assigned to review the information on the management of PHPT.

The Efficacy and Safety of Medical and Surgical Therapy in Patients With Primary Hyperparathyroidism: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Both medical and surgical therapy represent potential management options for patients with asymptomatic primary hyperparathyroidism (PHPT). Because uncertainty remains regarding both medical and surgical therapy, this systematic review addresses the efficacy and safety of medical therapy in asymptomatic patients or symptomatic patients who decline surgery and surgery in asymptomatic patients. We searched Medline, Embase, Cochrane Central Register of Controlled Trials, and PubMed from inception to December 2020, and included randomized controlled trials in patients with PHPT that compared nonsurgical management with medical therapy versus without medical therapy and surgery versus no surgery in patients with asymptomatic PHPT.

Nontraditional Aspects of Sporadic Primary Hyperparathyroidism.

Nontraditional aspects of primary hyperparathyroidism refer to the condition's rheumatic, gastrointestinal, cardiovascular, and neuropsychological effects. Although gastrointestinal and rheumatic symptomatology were features of classical primary hyperparathyroidism, they do not seem to be a part of the modern presentation of primary hyperparathyroidism. In contrast, neuropsychological symptoms such as altered mood and cognition, as well as cardiovascular disease, have been associated with the form of primary hyperparathyroidism seen today, but the relationship is not clearly causal.

Do Early Infant Feeding Practices and Modifiable Household Behaviors Contribute to Age-Specific Interindividual Variations in Infant Linear Growth? Evidence from a Birth Cohort in Dhaka, Bangladesh.

Background: Causes of infant linear growth faltering in low-income settings remain poorly understood. Identifying age-specific risk factors in observational studies might be influenced by statistical model selection.

Objectives: To estimate associations of selected household factors and infant feeding behaviors within discrete age intervals with interval-specific changes in length-for-age -scores (LAZs) or attained LAZ, using 5 statistical approaches.

COVID-19 infection prevention and control procedures and institutional trust: Perceptions of Canadian intensive care and emergency department nurses.

Purpose: Healthcare workers must ensure effective infection prevention and control (IPC) to prevent nosocomial spread of SARS-CoV-2, the virus that causes COVID-19. This questionnaire study aims to evaluate Canadian critical care and emergency department nurses' readiness to follow IPC guidelines in their workplace, and to understand their perceptions of trust in organizational preparedness, communication, and infection risk.

Methods: We adapted an internationally distributed survey for the Canadian context.

Clinician-researcher's perspectives on clinical research during the COVID19 pandemic.

Objectives: The outcome of well-performed clinical research is essential for evidence-based patient management during pandemics. However, conducting clinical research amidst a pandemic requires researchers to balance clinical and research demands. We seek to understand the values, experiences, and beliefs of physicians working at the onset of the COVID-19 pandemic in order to inform clinical research planning.

Long-term Bone Loss and Deterioration of Microarchitecture After Gastric Bypass in African American and Latina Women.

Context: The prevalence of obesity is burgeoning among African American and Latina women; however, few studies investigating the skeletal effects of bariatric surgery have focused on these groups.

Objective: To investigate long-term skeletal changes following Roux-en-Y gastric bypass (RYGB) in African American and Latina women.

Design: Four-year prospective cohort study.

Functional magnetic resonance imaging in primary hyperparathyroidism.

Objective: The neurophysiological mechanisms underlying cognitive dysfunction in primary hyperparathyroidism (PHPT) and the brain regions affected are not clear. We assessed neural activation during cognitive testing (matrix reasoning, paired associates, and logical memory) using functional MRI (fMRI) in 23 patients with PHPT and 23 healthy controls. A subset with PHPT was re-assessed 6 months post-parathyroidectomy (PTX).

Proportion of female recipients of resident-selected awards across Canada from 2000 to 2018: a retrospective observational study.

Background: Female physicians have been shown to receive fewer awards from medical societies than their male colleagues. We examined the sex distribution of recipients of Canadian residency association awards.

Methods: We conducted a retrospective observational study of the sex of staff and resident physician recipients of resident-selected awards from provincial and national residency associations using data from 2000-2018.

The most important discoveries of the past 50 years in gynaecological pathology.

The field of gynaecological pathology has grown from its infancy to a mature subspecialty over the last 50 years. What discoveries have led the way in this evolution? On the basis of personal experience and a survey of expert gynaecological pathologists, the following discoveries have been most impactful: (i) identification of the role of human papillomavirus in the aetiology of carcinoma of the lower genital tract; (ii) the emergence of international classification systems for gynaecological cancers (with cervical adenocarcinoma being the most recent example of this); (iii) the development of reliable immunohistochemistry as a diagnostic adjunct; (iv) discoveries around the aetiology and the relationship between serous carcinoma of the tube/ovary and the endometrium; and (v) identification of the role of oestrogen in the development of endometrial carcinoma and histological recognition of the precursor lesion atypical hyperplasia/endometrial intraepithelial neoplasia, and how recognition of the role of diethylstilboestrol in the aetiology of vaginal clear cell carcinoma led directly to this discovery. The history of each discovery and how it changed diagnostic pathology will be discussed in this review.

Cognition and cerebrovascular function in primary hyperparathyroidism before and after parathyroidectomy.

Purpose: There are cognitive changes in primary hyperparathyroidism (PHPT) that improve with parathyroidectomy, but the mechanism of cognitive dysfunction has not been delineated. We assessed if cerebrovascular function is impaired in PHPT, improves post-parathyroidectomy and is associated with PTH level and cognitive dysfunction.

Methods: This is an observational study of 43 patients with mild hypercalcemic or normocalcemic PHPT or goiter.

Risk factors for vertebral fracture in primary hyperparathyroidism.

Purpose: Screening for vertebral fractures (VF) in primary hyperparathyroidism (PHPT) is recommended, but there are limited data regarding which patients are at greatest risk for VF. We evaluated risk factors for VF in PHPT.

Methods: This is a retrospective cross-sectional analysis of 117 participants with PHPT.