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Comparison of Indian and US Navy Decompression Practices

Comparison of Indian and US Navy Decompression Practices. Surg Lt Cdr Rohit Verma Graded Specialist (Marine Med) INS Nireekshak. SCOPE. Background Methods Results Conclusion. Background. US Navy Decompression Practices Pioneers Followed globally Recreational Divers

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Comparison of Indian and US Navy Decompression Practices

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  1. Comparison of Indian and US Navy Decompression Practices Surg Lt CdrRohitVerma Graded Specialist (Marine Med) INS Nireekshak

  2. SCOPE • Background • Methods • Results • Conclusion

  3. Background • US Navy Decompression Practices • Pioneers • Followed globally • Recreational Divers • Recompression Therapy • Technical divers

  4. Methods • SALVEX 2011 • USNS Salvage • INS Nireekshak • Off Port Blair: Jan 2011 • Indian Clearance Divers in US Deco Practices • 42 MSW / 140 FSW • Surface Supported Dive in KMB MK 17B

  5. SALVEX 2011

  6. SALVEX 2011

  7. Results • Surfaced directly • Place in Chamber in 3.5 minutes • Recompressed to 40 FSW (~12 MSW) • Stoppage of 11 Min @ 40 FSW • 1min 20 sec ascent to Surface on O2

  8. Conclusion • Advantages of Sur DO2 • Shorter exposure in water • Hypothermia prevention • Decreased Marine Anima Injury • Less chance of “Blow up” • Safety from Sea conditions • Decreased Decompression time • Controlled Decompression in chamber

  9. Conclusion • Disadvantages of Sur DO2 • Extensive resources • Chamber • Manpower • Oxygen requirements • Synchronised timings • Increased risk of DCS • Application in our set up?

  10. Thank You

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