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Hyperbaric medicine
12 février 2023, BALESTRA, Costantino
; Kot, Jacek,
- HE Bruxelles Brabant
,
- Livre/Ouvrage ou monographie
Livre/Ouvrage ou monographie
Oxygen (both its presence and absence) acts as a potent signaling mechanism in many, if not
most, cellular processes.
Oxygen has been used therapeutically mainly to alleviate or correct hypoxia, and has been
administered in supra-atmospheric doses in the form of hyperbaric oxygen (a method derived from
diving medicine practices, but has been used in non-diving applications since the 1960s).
Hyperbaric ...
The Normobaric Oxygen Paradox-Hyperoxic Hypoxic Paradox: A Novel Expedient Strategy in Hematopoiesis Clinical Issues
janvier 2023, Salvagno, Michele; Coppalini, Giacomo; Taccone, Fabio-Silvio; Strapazzon, Giacomo; Mrakic-Sposta, Simona; Rocco, Monica; Khalife, Maher; BALESTRA, Costantino
,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Hypoxia, even at non-lethal levels, is one of the most stressful events for all aerobic organisms as it significantly affects a wide spectrum of physiological functions and energy production. Aerobic organisms activate countless molecular responses directed to respond at cellular, tissue, organ, and whole-body levels to cope with oxygen shortage allowing survival, including enhanced neo-angiogenesis ...
Oxidative Stress Response’s Kinetics after 60 Minutes at Different (30% or 100%) Normobaric Hyperoxia Exposures
30 décembre 2022, Leveque, Clément; Mrakic-Sposta, Simona; Lafère, Pierre; Vezzoli, Alessandra; Germonpré, Peter; Beer, Alexandre; Mievis, Stéphane; Virgili, Fabio; LAMBRECHTS, Kate; THEUNISSEN, Sigrid; Guerrero, François; BALESTRA, Costantino
,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Oxygen is a powerful trigger for cellular reactions and is used in many pathologies,
including oxidative stress. However, the effects of oxygen over time and at different partial pressures
remain poorly understood. In this study, the metabolic responses of normobaric oxygen intake
for 1 h to mild (30%) and high (100%) inspired fractions were investigated. Fourteen healthy nonsmoking subjects (7 ...
Pulmonary Effects of One Week of Repeated Recreational Closed-Circuit Rebreather Dives in Cold Water
28 décembre 2022, Gouin, Emmanuel; BALESTRA, Costantino
; Orsat, Jeremy; Dugrenot, Emmanuel; L'Her, Erwan,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background and Objectives: The use of closed-circuit rebreathers (CCRs) in recreational diving is gaining interest. However, data regarding its physiological effects are still scarce. Immersion, cold water, hyperoxia, exercise or the equipment itself could challenge the cardiopulmonary system. The purpose of this study was to examine the impact of CCR diving on lung function and autonomous cardiac ...
Vascular Function Recovery Following Saturation Diving
17 octobre 2022, Imbert, Jean-Pierre; Egi, Sahli-Murat; BALESTRA, Costantino
,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background and Objectives: Saturation diving is a technique used in commercial diving. Decompression sickness (DCS) was the main concern of saturation safety, but procedures have evolved over the last 50 years and DCS has become a rare event. New needs have evolved to evaluate the diving and decompression stress to improve the flexibility of the operations (minimum interval between dives, optimal ...
Hydration status during commercial saturation diving measured by bioimpedance and urine specific gravity
29 septembre 2022, Werke, Stian Lande; Landswerk, Halvor Dagsson; Lautridou, Jacky; Imbert, Jean-Pierre; BALESTRA, Costantino
; Eftedal, Ingrid,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Excessive fluid loss triggered by hyperbaric pressure, water immersion and hot water suits causes saturation divers to be at risk of dehydration. Dehydration is associated with reductions in mental and physical performance, resulting in less effective work and an increased risk of work-related accidents. In this study we examined the hydration status of 11 male divers over 19 days of a commercial ...
Varying Oxygen Partial Pressure Elicits Blood-Borne Microparticles Expressing Different Cell-Specific Proteins-Toward a Targeted Use of Oxygen?
17 juillet 2022, BALESTRA, Costantino
; Arya, Awadhesh; Leveque, Clément; Virgili, Fabio; GERMONPRÉ, Peter; LAMBRECHTS, Kate; Lafere, Pierre; Thom, Stephen,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Oxygen is a powerful trigger for cellular reactions, but there are few comparative investigations assessing the effects over a large range of partial pressures. We investigated a metabolic response to single exposures to either normobaric (10%, 15%, 30%, 100%) or hyperbaric (1.4 ATA, 2.5 ATA) oxygen. Forty-eight healthy subjects (32 males/16 females; age: 43.7 +/- 13.4 years, height: 172.7 +/- 10.07 ...
Mini Trampoline, a New and Promising Way of SCUBA Diving Preconditioning to Reduce Vascular Gas Emboli?
29 avril 2022, LAMBRECHTS, Kate; GERMONPRÉ, Peter; Vandenheede, Joaquim; Delorme, Manon; Lafere, Pierre; BALESTRA, Costantino
,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: Despite evolution in decompression algorithms, decompression illness is still an issue nowadays. Reducing vascular gas emboli (VGE) production or preserving endothelial function by other means such as diving preconditioning is of great interest. Several methods have been tried, either mechanical, cardiovascular, desaturation aimed or biochemical, with encouraging results. In this study, ...
Effects of Acute Hypobaric Hypoxia Exposure on Cardiovascular Function in Unacclimatized Healthy Subjects: A "Rapid Ascent" Hypobaric Chamber Study
28 avril 2022, THEUNISSEN, Sigrid; BALESTRA, Costantino
; Bolognési, Sébastien; Borgers, Guy; Vissenaeken, Dirk; Obeid, Georges; Germonpré, Peter; Honoré, Patrick M.; De Bels, David,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: This study aimed to observe the effects of a fast acute ascent to simulated high altitudes on cardiovascular function both in the main arteries and in peripheral circulation. Methods: We examined 17 healthy volunteers, between 18 and 50 years old, at sea level, at 3842 m of hypobaric hypoxia and after return to sea level. Cardiac output (CO) was measured with Doppler transthoracic ...
Effect of SCUBA Diving on Ophthalmic Parameters
09 mars 2022, Deleu, Laurent; Catherine, Janet; Postelmans, Laurence; BALESTRA, Costantino
,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background and Objective: Several cases of central serous chorioretinopathy (CSC) in divers have been reported in our medical retina center over the past few years. This study was designed to evaluate possible changes induced by SCUBA diving in ophthalmic parameters and especially subfoveal choroidal thickness (SFCT), since the choroid seems to play a crucial role in physiopathology of CSC. Materials ...