Current status of decompression illness in China: Analysis of studies from 2001-2011

Department of Diving Medicine, the Second Military Medical University, Shanghai, 200433, P.R. China.
Undersea & hyperbaric medicine: journal of the Undersea and Hyperbaric Medical Society, Inc (Impact Factor: 0.77). 02/2013; 40(1):41-8.
Source: PubMed


To analyze the studies on decompression illness (DCI) in China in the past 10 years.
We searched three Chinese databases and collected studies on DCI for further analysis. On the basis of findings, we proposed the issues on DCI in China.
There are more than 50,000 active divers in China, the majority of whom are fishing divers. Among them, the incidence of DCI is still at a high level because they have little or no knowledge of diving and diving medicine, the quality of diving equipment is poor, and divers generally do not follow the regulations of diving. There are few dive physicians in China, and the general clinicians have poor knowledge about, or pay little attention to, dive medicine. This might be the major cause of the poor quality of studies on DCI. There is no consensus in the classification of DCI and treatment tables for DCI treatment. These are factors affecting systemic review and further meta-analysis of available studies on DCI.
It is imperative to generalize knowledge in not only divers and diving-related practitioners but general practitioners as well.

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    ABSTRACT: An average of 209 cases of decompression sickness (DCS) have been reported every year among artisanal fishermen divers of the Yucatan Peninsula, Mexico. DCS is a major problem among fishermen divers worldwide. This paper explores how diving behavior and fishing techniques among fishermen relate to the probability of experiencing DCS (Pdcs). Fieldwork was conducted in two communities during the 2012-2013 fishing season. Fishermen were classified into three groups (two per group) according to their fishing performance and followed during their journeys. Dive profiles were recorded using Sensus Ultra dive recorders (Reefnet Inc.). Surveys were used to record fishing yields from cooperative and individual fishermen along with fishing techniques and dive behavior. 120 dives were recorded. Fishermen averaged three dives/ day, with an average depth of 47 ± 2 feet of sea water (fsw) and an average total bottom time (TBT) of 95 ± 11 minutes. 24% of dives exceeded the 2008 U.S. Navy nodecompression limit. The average ascent rate was 20 fsw/minute, and 5% of those exceeded 40 fsw/minute. Inadequate decompression was observed in all fishermen. Fishermen are diving outside the safety limits of both military and recreational standards. Fishing techniques and dive behavior were important factors in Pdcs. Fishermen were reluctant to seek treatment, and symptoms were relieved with analgesics.
    Undersea & hyperbaric medicine: journal of the Undersea and Hyperbaric Medical Society, Inc 09/2015; 42(4):285-296. · 0.77 Impact Factor

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