This study evaluates the effect of hypoxia on blood volumes during Antarctic winter-over confinement. Half of the participants will be evaluated during sea-level winter-over confinement, while the other half will be examined during high-altitude hypoxia winter-over confinement.
The study aims to describe the use of Nasal High Flow (NHF) in the intensive care units of participating centers in Iberoamerica. It will describe the indications for the use, the clinical outcome of patients , and the therapeutic failure of NHF therapy in patients staying in an intensive care unit in the participant centers in Iberoamerica.
The goal of this non-randomized prospective study is to use 18F-EF5-PET/CT imaging to identify and locate intraabdominal hypoxic ovarian cancer lesions. With targeted surgical sampling, precisely obtain hypoxic and potentially chemoresistant cancer tissue for our analyses and identify key molecular differences between hypoxic and non-hypoxic tumors within the same patient. A portion of advanced stage EOC are inoperable at diagnosis and can be treated with neoadjuvant chemotherapy (NACT) before surgery. This approach offers a unique opportunity to study how hypoxic tumor areas respond to treatment.
This is a randomized control pilot study to assess the effect of intermittent hypoxia therapy on functional capacity vs conventional care in old patients with functional impairment admitted to a Phase 2 in-hospital cardiac rehabilitation program.
The purpose of this study is to compare thermographic estimates of respiratory rate to manual counting (visual inspection) and thoracic impedance-based methods. Thermographic methods rely on detection of temperature changes in the nose and mouth that occur as room temperature air passes through the nose and mouth during ventilation, and may offer a non-invasive means of measuring respiratory rate without requiring any patient contact.
To determine the lowest nasal cannula flow rate in which upper airway deadspace is reduced. Hypothesis - The lowest flow rate of high flow nasal cannula (HFNC) will reduce upper airway (extrathoracic) deadspace and improve respiratory efficiency by reducing transcutaneous CO2 and/or lower respiratory rate. To determine the lowest nasal cannula flow rate in which regional distribution (as defined by EIT) of ventilation changes. Hypothesis - Moderate to high flow rates will create positive pressure that leads to improved regional distribution of ventilation.