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A fully automated method for late ventricular diastole frame selection in post-dive echocardiography without ECG gating
02 mars 2021, Markley, Eric; Le, David; Germonpré, Peter; BALESTRA, Costantino; Tillmans, Frauke; Denoble, Petar; Freiberger, Jake; Moon, Richard; Dayton, Paul; Papadopoulou, Virginie,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Venous gas emboli (VGE) are often quantified as a marker of decompression stress on echocardiograms. Bubble-counting has been proposed as an easy to learn method, but remains time-consuming, rendering large dataset analysis impractical. Computer automation of VGE counting following this method has therefore been suggested as a means to eliminate rater bias and save time. A necessary step for this ...
ULTRASONOGRAPHIC ASSESSMENT OF NECK MUSCULAR SIZE AND RANGE OF MOTION IN RUGBY PLAYERS
01 février 2018, HEMELRYCK, Walter; Calistri, Josselin; Papadopoulou, Virginie; THEUNISSEN, Sigrid; Dugardeyn, Christian; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: World Rugby Union laws are constantly evolving towards stringent injury-prevention, particularly for contested scrums, since front row players are most at risk of cervical spine injuries. Recently, some countries have also introduced tailored training programs and minimum performance requirements for playing in the front row. Nevertheless, these approaches lack an objective assessment ...
Editorial: Physiological telemonitoring and interventional telemedicine in extreme environments
22 janvier 2024, BALESTRA, Costantino; Bosco, Gerardo; Cialoni, Danilo; Kot, Jacek; Pelliccia, Riccardo; Marroni, Alessandro,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Physiological and Clinical Impact of Repeated Inhaled Oxygen Variation on Erythropoietin Levels in Patients After Surgery
15 septembre 2021, Khalifé, Maher; Ben Haziz, Mohamed; BALESTRA, Costantino; Valsamis, Joseph; Sosnowski, Maurice,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
The "Normobaric Oxygen Paradox" (NOP) is a physiologic mechanism that induces an increase of endogenous erythropoietin (EPO) production by creating a state of relative hypoxia in subjects previously exposed to hyperoxia, followed by a rapid return to normoxia. Oxygen exposure duration and inspired oxygen fraction required to observe a significant increase in EPO or hemoglobin are not clearly defined. ...
Decompression induced bubble dynamics on ex vivo fat and muscle tissue surfaces with a new experimental set up
04 avril 2015, Papadopoulou, Virginie; Evgenidis, Sotiris; Eckersley, Robert; Mesimeris, Thodoris; BALESTRA, Costantino; Kostoglou, Margaritis; Tang, Meng-Xing; Karapantsios, Thodoris,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Vascular gas bubbles are routinely observed after scuba dives using ultrasound imaging, however the precise formation mechanism and site of these bubbles are still debated and growth from decompression in vivo has not been extensively studied, due in part to imaging difficulties. An experimental set-up was developed for optical recording of bubble growth and density on tissue surface area during ...
Cutis Marmorata skin decompression sickness is a manifestation of brainstem bubble embolization, not of local skin bubbles
10 avril 2015, Germonpré, Peter; BALESTRA, Costantino; Obeid, Georges; Chers, Dirk,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
"Cutis Marmorata" skin symptoms after diving, most frequently in the form of an itching or painful cutaneous red-bluish discoloration are commonly regarded as a mild form of decompression sickness (DCS), and treated with oxygen inhalation without reverting to hyperbaric recompression treatment. It has been observed that the occurrence of Cutis Marmorata is frequently associated with the presence of ...
Flying after diving: should recommendations be reviewed? In-flight echocardiographic study in bubble-prone and bubble-resistant divers
13 mai 2015, Cialoni, Danilo; Pieri, Massimo; BALESTRA, Costantino; Marroni, Alessandro,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
INTRODUCTION: Inert gas accumulated after multiple recreational dives can generate tissue supersaturation and bubble formation when ambient pressure decreases. We hypothesized that this could happen even if divers respected the currently recommended 24-hour pre-flight surface interval (PFSI). METHODS: We performed transthoracic echocardiography (TTE) on a group of 56 healthy scuba divers (39 male, ...
A ternary model of decompression sickness in rats
01 décembre 2014, Buzzacott, Peter; LAMBRECHTS, Kate; Mazur, Aleksandra; Wang, Qiong; Papadopoulou, Virginie; Theron, Michaël; BALESTRA, Costantino; Guerrero, François,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: Decompression sickness (DCS) in rats is commonly modelled as a binary outcome. The present study aimed to develop a ternary model of predicting probability of DCS in rats, (as no-DCS, survivable-DCS or death), based upon the compression/decompression profile and physiological characteristics of each rat.
Methods: A literature search identified dive profiles with outcomes no-DCS, ...
Ultrasound lung "comets" increase after breath-hold diving
23 octobre 2010, LAMBRECHTS, Kate; GERMONPRÉ, Peter; Charbel, Brian; Cialoni, Danilo; Musimu, Patrick; Sponsiello, Nicola; Marroni, Alessandro; Pastouret, Fredéric; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
The purpose of the study was to analyze the ultrasound lung comets (ULCs) variation, which are a sign of extra-vascular lung water. Forty-two healthy individuals performed breath-hold diving in different conditions: dynamic surface apnea; deep variable-weight apnea and shallow, face immersed without effort (static maximal and non-maximal). The number of ULCs was evaluated by means of an ultrasound ...
Effect of a single, open-sea, air scuba dive on human micro- and macrovascular function
15 août 2013, LAMBRECHTS, Kate; Pontier, Jean-Michel; BALESTRA, Costantino; Mazur, Aleksandra; Wang, Qiong; Buzzacott, Peter; Theron, Michaël; Mansourati, Jacques; Guerrero, François,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Purpose: Previous studies have shown that bubble formation induced endothelial damage on conduit arteries. We aim to evaluate the effect of diving on microvascular and macrovascular function.
Methods: Nine divers took part in a SCUBA dive at 30 msw (400 kPa), for 30 min of bottom time. Pre- and post-dive, they underwent an assessment of endothelial-dependent (acetylcholine) and endothelial-independent ...