Wetenschappelijke artikelen
Geselecteerde wetenschappelijke artikelen over duikgeneeskunde en -fysiologie
2019 okt 1
Diving physiopathology: the end of certainties? Food for thought
Balestra C, Germonpre P, Rocco M, Biancofiore G & Kot J.

Our understanding of decompression physiopathology has slowly improved during this last decade and some uncertainties have disappeared. A better understanding of anatomy and functional aspects of patent foramen ovale (PFO) have slowly resulted in a more liberal approach toward the medical fitness to dive for those bearing a PFO. Circulating vascular gas emboli (VGE) are considered the key actors in development of decompression sickness and can be considered as markers of decompression stress indicating induction of pathophysiological processes not necessarily leading to occurrence of disease symptoms.

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2021 apr 7
Diving Responses in Experienced Rebreather Divers: Short-Term Heart Rate Variability in Cold Water Diving
Lundell RV, Tuominen L, Ojanen T, Parkkola K & Raisanen-Sokolowski A.

Introduction: Technical diving is very popular in Finland throughout the year despite diving conditions being challenging, especially due to arctic water and poor visibility. Cold water, immersion, submersion, hyperoxia, as well as psychological and physiological stress, all have an effect on the autonomic nervous system (ANS). Materials and methods: To evaluate divers' ANS responses, short-term (5 min) heart rate variability (HRV) during dives in 2-4°C water was measured. HRV resting values were evaluated from separate measurements before and after the dives. Twenty-six experienced closed circuit rebreather (CCR) divers performed an identical 45-meter decompression dive with a non-physical task requiring concentration at the bottom depth.

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2016 dec 1
Do Environmental Conditions Contribute to Narcosis Onset and Symptom Severity?
Lafère P, Balestra C, Hemelryck W, Guerrero F, Germonpré P.

Although many factors contributing to inert gas narcosis onset and severity have been put forward, the available evidence is not particularly strong. Using objective criteria, we have assessed brain impairment associated with narcosis under various environmental diving conditions...

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2019 nov 27
Doppler ultrasound dataset for the development of automatic emboli detection algorithms
Paola Pierleoni, Marco Mercuri Alberto Belli, Massimo Pieri, Alessandro Marroni, Lorenzo Palma

The article describes a dataset of doppler ultrasound audio tracks taken on a sample of 30 divers according to the acquisition protocol defined by the Divers Alert Network. The audio tracks are accompanied by a medical evaluation for the decompression sickness risk according to the Spencer's scale levels. During the acquisition campaign, each diver in the post-dive phase was subjected to a double doppler ultrasound examination of approximately 45 seconds each one in the precordial area using a Huntleigh FD1 Fetal doppler probe. The two measurements were separated by a time of 8-10 seconds necessary for carrying out specific physical exercises designed to free the bubbles trapped in the tissues.

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2020 apr 17
Early Endothelial Dysfunction in Type 1 Diabetes Is Accompanied by an Impairment of Vascular Smooth Muscle
Elodie Lespagnol, Luc Dauchet, Mehdi Pawlak-Chaouch, Costantino Balestra, Serge Berthoin, Martin Feelisch, Matthieu Roustit, Julien Boissière, Pierre Fontaine, Elsa Heyman

Background: A large yet heterogeneous body of literature exists suggesting that endothelial dysfunction appears early in type 1 diabetes, due to hyperglycemia-induced oxidative stress. The latter may also affect vascular smooth muscles (VSM) function, a layer albeit less frequently considered in that pathology. This meta-analysis aims at evaluating the extent, and the contributing risk factors, of early endothelial dysfunction, and of the possible concomitant VSM dysfunction, in type 1 diabetes. Methods: PubMed, Web of Sciences, Cochrane Library databases were screened from their respective inceptions until October 2019. We included studies comparing vasodilatory capacity depending or not on endothelium (i.e., endothelial function or VSM function, respectively) in patients with uncomplicated type 1 diabetes and healthy controls.

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