| Influence of repetitive open sea dives and physical exercises on right-to-left shunting in healthy divers. | |
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MedLine Citation:
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PMID: 18065441 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Paradoxical gas embolism through right-to-left (R/L) shunts is considered as a potential cause of certain types of decompression sickness. AIM: To assess whether 4 months of repetitive diving and strenuous exercises would lead to an increased prevalence of R/L shunting in a group of military divers. METHODS: Using a standardised contrast-enhanced transcranial Doppler technique, 17 divers were re-examined for the presence of a R/L shunt 4 months after their initial examinations. R/L shunts were classified as type I if observed only after a straining manoeuvre, and type II if present at rest. RESULTS: Initial prevalence of R/L shunt was 41%: six type I shunts and one type II. At the second examination, prevalence was 47%, with the appearance of one type I shunt that was not previously present. We found no significant increase in the prevalence and size of R/L shunts. CONCLUSION: It is speculated that diving-related phenomena, such as variations in right atrial pressures during the end stages of or events immediately after a dive could generate an R/L shunt. However, extreme conditions of repetitive diving and strenuous exercises do not cause permanent modification in R/L permeability over a period of 4 months. |
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Authors:
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J-E Blatteau; C Pény; J-M Pontier; E Gempp; P Louge |
Publication Detail:
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Type: Journal Article Date: 2007-12-07 |
Journal Detail:
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Title: British journal of sports medicine Volume: 42 ISSN: 1473-0480 ISO Abbreviation: Br J Sports Med Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2008-11-07 Completed Date: 2009-04-06 Revised Date: 2010-12-16 |
Medline Journal Info:
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Nlm Unique ID: 0432520 Medline TA: Br J Sports Med Country: England |
Other Details:
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Languages: eng Pagination: 934-6 Citation Subset: IM |
Affiliation:
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Département de Médecine Hyperbare, Hôpital d'instruction des armées Sainte-Anne, 83800 Toulon Armées, France. je.blatteau@infonie.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Decompression / adverse effects Decompression Sickness / etiology*, ultrasonography Diving / physiology* Embolism, Air / complications*, ultrasonography Embolism, Paradoxical / complications*, ultrasonography Exercise / physiology* Foramen Ovale, Patent / complications Humans Military Personnel Pulmonary Circulation / physiology* Ultrasonography, Doppler, Transcranial |
| Comments/Corrections | |
Erratum In:
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Br J Sports Med. 2009 Apr;43(4):310-1 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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