Obstructive Sleep Apnea (OSA) is a well-known disorder of upper airways collapse during sleep time leading to oxygen desaturation, sleep fragmentation, tissue suffering and hypercapnia. The repeated airways collapse leads to a fall of blood saturation levels during sleep time and it is linked to
In this study, 100 professional boxers that experience a concussion will be enrolled, randomized to either placebo or sildenafil (60mg) drug treatment, and arterial spin labeling and BOLD-MRI with hypercapnia will used to assess CBF and CVR, respectively. Symptom reporting, blood biomarkers, and
1. Sample size calculation, randomization and patients safety. The required sample size is calculated from previous studies on the incidence of postoperative pulmonary complications. A two group chi-square test with a 0.05 two-sided significance level will have 80% power to detect the difference (in
Cerebral autoregulation (CA) is a complex mechanism that serves the essential and vital purpose of controlling cerebral blood flow and metabolism. A stable and optimal brain blood flow is imperative for normal brain function; therefore normal function of CA is crucial for brain health. Diabetes
Randomized Controlled Trial to Study the Effect of Nasal Continuous Positive Airway Pressure (NCPAP) Cycling on Successful Weaning when Compared with Continuous Nasal Positive Airway Pressure (NCPAP) in Premature Infants of 25-28 weeks gestations Background: In Canada, preterm babies of < 28 weeks
Rationale of the study Acute Respiratory Distress Syndrome (ARDS) is an acute inflammatory state of the pulmonary parenchyma that causes hypoxemia, atelectasis, pulmonary congestion, and reduction in pulmonary compliance. Mechanical ventilation is actually life-saving, but it may traumatize the
BACKGROUND AND RATIONALE Recent two-center results (1) support a beneficial effect of combined high-frequency oscillation (HFO), recruitment maneuvers (RMs) and tracheal gas insufflation (TGI) on the survival of patients with severe acute respiratory distress syndrome (ARDS). The addition of TGI to
Obstructive sleep apnea (OSA) is a frequently underdiagnosed condition that has emerged as an increasing medical problem with important social and financial implications worldwide. Its prevalence may reach 25% in middle-aged men and 11% in women. The most important risk factor for OSA is obesity -
HYPOTHESIS:
Patients with OHS may be characterized and differentiated from obese patients without associated respiratory pathology on the basis of clinical, functional and metabolic data.
There is a close relation between OHS and OSAHS. It is important to define this relation more precisely because
RATIONALE:
Chronic obstructive pulmonary disease (COPD) is a term that describes a disease state in which there is chronic irreversible airflow limitation. It has been well documented that patients with COPD have disturbed sleep. Certain published reports suggest that more than 50% of COPD patients
Design Randomized controlled pilot study.
Setting: The study will be conducted at the Mount Sinai Hospital (MSH), Toronto which is a tertiary care teaching hospital in the Greater Toronto Area. Approximately 50-75 neonates <28 weeks' completed gestation are delivered at MSH per year. The institute
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