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      Circulating bubbles and breath-hold underwater fishing divers: a two-dimensional echocardiography and continuous wave Doppler study.

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          Abstract

          Since the 1960s, decompression illness after breath-hold diving has been widely debated. The aim of this study was to detect circulating bubbles after breath-hold diving in underwater fishing divers. We used continuous Doppler (DUG, COMEX Pro) and transthoracic two-dimensional (2D) echocardiography (Kontron Sigma 1). This study was conducted during a training course organized by the French Federation of Subaquatic Sports at Minorca (Balearic Islands). Ten breath-hold divers performed repeated breath-hold dives for periods ranging from 2 to 6 h [mean maximum depth 35 meters of seawater (msw)]. A dive computer (Maestro Pro Beuchat, analyst PC interface) was used to record diving patterns. No circulating bubbles were detected in the right heart cavities (2D echocardiography) or in the pulmonary artery (continuous Doppler). However, this study had some limits: only 10 subjects were studied and the earliest detection was 3 min after immersion, further studies will thus be required.

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          Author and article information

          Journal
          Undersea Hyperb Med
          Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc
          1066-2936
          1066-2936
          1997
          : 24
          : 4
          Affiliations
          [1 ] Service de Reanimation Medicale et d'Hyperbarie, Hopital Salvator, Marseilles, France.
          Article
          9444062
          b9faa144-a31e-43d6-889e-b9b0c53670ab
          History

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