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dc.contributor.authorEgi, SM
dc.contributor.authorAydin, S
dc.contributor.authorGurmen, NM
dc.date.accessioned2021-03-03T12:33:09Z
dc.date.available2021-03-03T12:33:09Z
dc.date.issued2003
dc.identifier.citationEgi S., Gurmen N., Aydin S., "Field trials of no-decompression stop limits for diving at 3500 m", AVIATION SPACE AND ENVIRONMENTAL MEDICINE, cilt.74, sa.3, ss.228-235, 2003
dc.identifier.issn0095-6562
dc.identifier.othervv_1032021
dc.identifier.otherav_2eb20617-3836-46cd-ab1f-970e05632f92
dc.identifier.urihttp://hdl.handle.net/20.500.12627/35928
dc.description.abstractIntroduction: In 1990, Bogazici University (Istanbul, Turkey) launched an altitude diving program to develop techniques and safe decompression profiles for diving at high terrestrial altitudes. Following pioneering diving expeditions to lakes at high elevations in 1990-1992, it was deemed necessary to calculate new tables. Methods: Bottom time limits for dives requiring no decompression stops (no-d) were calculated for 3500 m using linear extrapolation of U.S. Navy M-values decreased by 4 ft of sea water (M4 limits). These limits were tested for 15, 18, 21, 24, 27, and 30 m of depth by diving in the Great Sea Lake at Mt Kackar (3412 m) with 10 dives per profile. Results. The mean decompression sickness (DCS) risk estimated from precordial bubble scores (Spencer Scale) ranged from 0.3% to 2.8% per profile. After three expeditions, 165 dives had been achieved with a cumulative bottom time of 3199 min. No DCS occurred in dives that adhered to the M4 no-d limits. However, two cases of Type I and one case of Type II DCS were encountered where the divers accidentally exceeded those limits. Discussion: Considering the estimated risk of DCS and the relatively small number of trials, a more conservative approach was used to develop a final set of high altitude dive tables. This conclusive approach used continuous compartment half-lives. It is based on fitting a surface of allowable supersaturation limits using the empirical M-values from existing tables as well as our altitude diving data, together with an added constraint that forces calculated M-values to stay below the available M-value data.
dc.language.isoeng
dc.subjectTıp
dc.subjectSağlık Bilimleri
dc.subjectTemel Tıp Bilimleri
dc.subjectSosyal ve Beşeri Bilimler
dc.subjectSosyoloji
dc.subjectKlinik Tıp (MED)
dc.subjectSPOR BİLİMLERİ
dc.subjectKlinik Tıp
dc.subjectTIP, GENEL & İÇECEK
dc.subjectSosyal Bilimler (SOC)
dc.subjectSosyal Bilimler Genel
dc.subjectKAMU, ÇEVRE VE İŞ SAĞLIĞI
dc.titleField trials of no-decompression stop limits for diving at 3500 m
dc.typeMakale
dc.relation.journalAVIATION SPACE AND ENVIRONMENTAL MEDICINE
dc.contributor.department, ,
dc.identifier.volume74
dc.identifier.issue3
dc.identifier.startpage228
dc.identifier.endpage235
dc.contributor.firstauthorID167878


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