A5022896469- Traumatic Brain Injury Research
- Dermatologic Treatments and Research
- Traumatic Brain Injury and Neurovascular Disturbances
- Wound Healing and Treatments
- Cardiac Arrest and Resuscitation
- Anesthesia and Pain Management
- Cardiovascular Effects of Exercise
- Migration, Health and Trauma
- Sports injuries and prevention
- Injury Epidemiology and Prevention
- Digestive system and related health
- Cardiac, Anesthesia and Surgical Outcomes
- Burn Injury Management and Outcomes
- Airway Management and Intubation Techniques
- Body Contouring and Surgery
- Tracheal and airway disorders
- Pregnancy and preeclampsia studies
- Cancer survivorship and care
- Neutropenia and Cancer Infections
- Plant and animal studies
- Trauma and Emergency Care Studies
- Statistical Distribution Estimation and Applications
- Diversity and Career in Medicine
- Evolution and Genetic Dynamics
- Dementia and Cognitive Impairment Research
McGill University
2016-2025
New York University
2022
McGill University Health Centre
2009-2019
Centre Hospitalier de l’Université de Montréal
2018-2019
Royal Victoria Hospital
2015
Royal Victoria Regional Health Centre
2015
Khoula Hospital
2014
Statistics Canada
2013
Montreal General Hospital
2012
Montreal Children's Hospital
2008-2010
The dominant models explaining tree species diversity and distribution patterns in tropical forests are the Janzen-Connell Recruitment Limitation models, neither of which considers effect long-distance seed dispersal on survival, seedling establishment, or aggregated distributions trees empirically observed at mesoscales forests. At a neotropical forest site (Maracá Island Ecological Reserve, Roraima, Brazil), we experimentally reproduced clumped by tapirs for palm Maximiliana maripa. Such...
In vivo cell lineage-tracing studies in the vertebrate retina have revealed that sizes and cellular compositions of retinal clones are highly variable. It has been challenging to ascertain whether this variability reflects distinct but reproducible lineages among many different progenitor cells (RPCs) or is product stochastic fate decisions operating within a population more equivalent RPCs. To begin distinguish these possibilities, we developed method for long-term videomicroscopy follow...
<h3>Background:</h3> The aim of this study was to determine the minimum effective volume lidocaine 1.5% with epinephrine 5 μg/mL in 90% patients (MEV<sub>90</sub>) for single-injection ultrasound-guided infraclavicular block (ICB). <h3>Methods:</h3> Using an in-plane technique, a ICB performed: 17-gauge, 8-cm Tuohy needle advanced until tip located dorsal axillary artery. Volume assignment carried out using biased coin design up-and-down sequential method, where local anesthetic administered...
To determine why athletes decide not to seek medical attention during a game or practice when they believe have suffered concussion.A retrospective survey.University Sport Medicine Clinic.A total of 469 male and female university from several varsity team sports were participated in the study.Athletes surveyed about previous 12 months identify specific reasons those who believed had concussion decided at that time, how often these occurred, important decision process.Ninety-two (19.6%)...
Key points Mitochondria are frequently implicated in the ageing of skeletal muscle, although role denervation modulating mitochondrial function muscle is unknown. We show that increased sensitivity to apoptosis initiation occurs prior evidence persistent and thus a primary defect worthy therapeutic targeting. However, at more advanced age, changes markedly impacted by sporadic myofibre denervation, suggesting mitochondrion may be less viable target. Abstract Experimental modulates function,...
To examine the effects of protective headgear in adolescent football (soccer) players.Cross-sectional study.Oakville Soccer Club, Oakville, Canada.Football players aged 12-17 years.A questionnaire examining 2006 season using self-reported symptoms.The number concussions experienced during current season, duration symptoms, injuries to head and face any associated risk factors for these injuries.In population studied, 47.8% had symptoms a concussion year. 26.9% athletes who wore (HG) 52.8%...
Research into the pathophysiology and treatment of hypertrophic scar (HSc) remains limited by heterogeneity imprecision with which its severity is measured. The objective this study was to test interrater reliability concurrent validity Cutometer® measurement elasticity, Mexameter® erythema pigmentation, total thickness measure DermaScan C® relative modified Vancouver Scar Scale (mVSS) in patient-matched normal skin, scar, HSc. Three independent investigators evaluated 128 sites (severe HSc,...
The comparison of scar evaluation over time requires measurement tools with acceptable intrarater reliability and the ability to discriminate skin characteristics interest. objective this study was evaluate sensitivity specificity Cutometer, Mexameter, DermaScan C relative modified Vancouver Scar Scale (mVSS) in patient-matched normal skin, (donor sites), hypertrophic (HSc). A single investigator evaluated four tissue types (severe HSc, less severe donor site, skin) 30 burn survivors all...
The aim of this study was to determine the minimum effective volume lidocaine 1.5% with epinephrine 5 μg/mL in 90% patients (MEV90) for double-injection ultrasound-guided axillary block (AXB).All subjects received a AXB and μg/mL. A 17-gauge, 8-cm Tuohy needle initially advanced until its tip positioned next musculocutaneous nerve. Volume assignment carried out using biased coin design up-and-down sequential method, where local anesthetic administered each patient depended on response...
The clinical use of non-invasive instrumentation to evaluate skin characteristics for diagnostic purposes and treatment outcomes has become more prevalent. purpose this study was generate normative data elasticity, erythema (vascularity), melanin (pigmentation), thickness across a broad age range at wide variety anatomical locations using the Cutometer(®) (6 mm probe), Mexameter(®) , high-frequency ultrasound in healthy adult sample.We measured 241 participants who were stratified according...
To this end human MSCs were isolated from adipose tissue and the MSC:CD4(+) T-cell suppression was assessed in a co-culture system. In summary, study demonstrates that advanced age, atherosclerosis type 2 diabetes mellitus reduce functional potency of MSCs. Optimizing criteria for selection MSC donors could enhance results cell-based therapies.
<h3>Background:</h3> The aim of this study was to determine the minimum effective volume lidocaine 1.5% with epinephrine 5 μg/mL in 90% patients (MEV90) for double-injection ultrasound-guided supraclavicular block (SCB). <h3>Methods:</h3> Using an in-plane technique and a lateral medial direction, SCB performed. A 17-gauge, 8-cm Tuohy needle initially advanced until its tip positioned at intersection first rib subclavian artery ("corner pocket"). Half injected location. Subsequently,...
<h3>Background and Objectives</h3> The aim of this study was to determine the minimum effective volume (MEV) combined lidocaine 1.0%–bupivacaine 0.25% with epinephrine 5 μg/mL in 90% patients (MEV90) for ultrasound-guided subparaneural popliteal sciatic nerve block. <h3>Methods</h3> All subjects received an block (at neural bifurcation) μg/mL. Using out-of-plane technique, a 17-gauge, 8-cm Tuohy needle advanced until its tip positioned between tibial peroneal nerves inside paraneural sheath....
Summary Background Difficult airway ( DA ), including difficult bag‐mask ventilation DBMV and intubation DI ) is an important challenge for the pediatric anesthesiologist. While expected can be successfully managed with appropriate equipment personnel, unexpected relies on resources available experience of anesthesiologist at time emergency. The incidence risk factors in otherwise healthy children, among patients are not known. aim this study was to expand scientific knowledge patients....
Background: The incidence of infection secondary to mandibular fractures ranges from 0 30 percent, resulting in significant sequelae. Unlike other variables that may influence infection, delayed repair is often unavoidable. objective this study was accurately identify the effect treatment delay on fracture rate by adjusting for confounders, thus providing strong evidence preoperative management these patients. Methods: A retrospective review patients treated at Montreal General Hospital...
The goal of this study was to evaluate if isolated sarcomeres and half-sarcomeres produce a long-lasting increase in force after stretch is imposed during activation. Single were from myofibrils using micro-needles, which also used for measurements. After full development, both preparations stretched by different magnitudes. sarcomere length (SL) or half-sarcomere variations (HSL) extracted measuring the initial final distances Z-line adjacent region externally M-line sarcomere,...
To determine why professional football players in Canada decided not to seek medical attention during a game or practice when they believed had suffered concussion.Retrospective survey.Preseason Canadian Football League training camps.Four hundred fifty-four male players.Reasons athletes did for presumed concussion the previous season, how often this occurred and important these reasons were decision process.One six of 454 respondents (23.4%) their season 87 106 (82.1%) at least once that...
Factors shaping the distribution and abundance of species include life-history traits, population structure, stochastic colonization-extinction dynamics. Field studies model groups help reveal roles these factors. Species Caenorhabditis nematodes are highly divergent at sequence level but exhibit conserved morphology, many live in sympatry on microbe-rich patches rotten material. Here, we use field experiments large-scale opportunistic collections to investigate composition, abundance,...