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Article: Manifestations and treatment of 793 cases of decompression sickness in a compressed air tunneling project in Hong Kong.

TitleManifestations and treatment of 793 cases of decompression sickness in a compressed air tunneling project in Hong Kong.
Authors
Issue Date1988
Citation
Undersea Biomedical Research, 1988, v. 15 n. 5, p. 377-388 How to Cite?
AbstractIn the largest compressed air tunneling contract for the construction of the Island Line of the Mass Transit Railway system in Hong Kong, 154,390 man-decompressions occurred, of which 142,140 were after exposures to 1 bar (1.97 ATA, 14.7 psig) or above. The maximum working pressure (MWP) was 3.30 bar (4.26 ATA, 47.9 psig). There were 792 cases of type I and 1 case of type II decompression sickness. The manifestations of the cases were generally similar to those reported elsewhere. Oxygen treatment was given to 9 cases and all were successfully treated with no recurrence of symptoms. Minimum effective pressure treatment on 783 type I cases was successful, with 9.6% requiring two or more recompressions. The pressure required to relieve symptoms was more closely related to the interval between completion of decompression after work and commencement of treatment than to the delay between onset of symptoms and treatment. For every 1-h interval or every 1-h delay, an additional pressure of 0.04 bar (0.04 ATA, 0.58 psi) above MWP was required for pain relief. Step-wise multiple regression analysis showed that the four predictors for pressure of relief and the highest pressure used in recompression, respectively, were, in order of descending importance, maximum working pressure, interval before treatment, bends sequence (the nth attack of bends experienced in the present contract, i.e., the sum of previous attacks and the present attack), and duration of exposure.
Persistent Identifierhttp://hdl.handle.net/10722/151470
ISSN
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLam, THen_US
dc.contributor.authorYau, KPen_US
dc.date.accessioned2012-06-26T06:23:42Z-
dc.date.available2012-06-26T06:23:42Z-
dc.date.issued1988en_US
dc.identifier.citationUndersea Biomedical Research, 1988, v. 15 n. 5, p. 377-388en_US
dc.identifier.issn0093-5387en_US
dc.identifier.urihttp://hdl.handle.net/10722/151470-
dc.description.abstractIn the largest compressed air tunneling contract for the construction of the Island Line of the Mass Transit Railway system in Hong Kong, 154,390 man-decompressions occurred, of which 142,140 were after exposures to 1 bar (1.97 ATA, 14.7 psig) or above. The maximum working pressure (MWP) was 3.30 bar (4.26 ATA, 47.9 psig). There were 792 cases of type I and 1 case of type II decompression sickness. The manifestations of the cases were generally similar to those reported elsewhere. Oxygen treatment was given to 9 cases and all were successfully treated with no recurrence of symptoms. Minimum effective pressure treatment on 783 type I cases was successful, with 9.6% requiring two or more recompressions. The pressure required to relieve symptoms was more closely related to the interval between completion of decompression after work and commencement of treatment than to the delay between onset of symptoms and treatment. For every 1-h interval or every 1-h delay, an additional pressure of 0.04 bar (0.04 ATA, 0.58 psi) above MWP was required for pain relief. Step-wise multiple regression analysis showed that the four predictors for pressure of relief and the highest pressure used in recompression, respectively, were, in order of descending importance, maximum working pressure, interval before treatment, bends sequence (the nth attack of bends experienced in the present contract, i.e., the sum of previous attacks and the present attack), and duration of exposure.en_US
dc.languageengen_US
dc.relation.ispartofUndersea Biomedical Researchen_US
dc.subject.meshAdulten_US
dc.subject.meshAir Pressureen_US
dc.subject.meshDecompression Sickness - Etiology - Therapyen_US
dc.subject.meshHong Kongen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshOccupational Diseases - Etiology - Therapyen_US
dc.titleManifestations and treatment of 793 cases of decompression sickness in a compressed air tunneling project in Hong Kong.en_US
dc.typeArticleen_US
dc.identifier.emailLam, TH:hrmrlth@hkucc.hku.hken_US
dc.identifier.authorityLam, TH=rp00326en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid3201634-
dc.identifier.scopuseid_2-s2.0-0024082894en_US
dc.identifier.volume15en_US
dc.identifier.issue5en_US
dc.identifier.spage377en_US
dc.identifier.epage388en_US
dc.identifier.isiWOS:A1988Q835100005-
dc.identifier.scopusauthoridLam, TH=7202522876en_US
dc.identifier.scopusauthoridYau, KP=7101941411en_US

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