Naval Medical Research Institute Duke University Divers Alert Network
Capt.Edward Deforest Thalmann, USN (ret.) (b. April 3, 1945-d. July 24, 2004; age 59) was an American hyperbaric medicine specialist who was principally responsible for developing the current United States Navy dive tables for mixed-gas diving, which are based on his eponymous Thalmann Algorithm (VVAL18).[1] At the time of his death, Thalmann was serving as Assistant Medical Director of the Divers Alert Network (DAN) and an Assistant Clinical Professor in Anesthesiology at Duke University's Center for Hyperbaric Medicine and Environmental Physiology.[2]
Thalmann graduated from Sayreville High School, Sayreville NJ in 1962. He attended the Rensselaer Polytechnic Institute, graduating in 1966 with a bachelor of science degree.[3] He attended medical school at Georgetown University in Washington, D.C. From 1970 to 1971, Dr. Thalmann was a surgical intern at the Royal Victoria Hospital in Montreal, Quebec. It was there that he met his future wife, a nursing student.
While on active duty, from 1975 to 1977, Dr. Thalmann conducted a two-year postdoctoral fellowship under the guidance of Claes Lundgren and Hermann Rahn, at the State University of New York at Buffalo, studying the effects of immersion and breathing bag placement in rebreathers on underwater exercise.[4]
Following his post-doctoral fellowship in Buffalo, in 1977, Dr. Thalmann returned to NEDU, now located in Panama City, Florida, as Assistant Senior Medical Officer, where he began developing new dive tables and mixed-gas diving techniques.[5][6] While at NEDU, Thalmann created a number of unique and innovative underwater exercise devices, still in use today, intended to assist in gauging the underwater endurance of divers using various gas mixtures while performing physically demanding tasks.[7]
In 1985, Dr. Thalmann, now the Senior Medical Officer at NEDU, was selected for the NATO Undersea Medicine Personnel Exchange Program and assigned to the Royal Navy Institute of Naval Medicine, Alverstoke, United Kingdom. There he continued development of a new decompression table and worked on improving undersea thermal protection garments. Upon the conclusion of his exchange tour in 1987, Thalmann returned to Bethesda to serve as the commander of the Naval Medical Research Institute's diving medicine and physiology research division.
Civilian career[]
Following his retirement from the Navy in 1993, Thalmann stayed on at NMRI as a senior scientist in decompression research.[8] In July 1994 took a position in Durham, North Carolina at Duke's Center for Hyperbaric Medicine and Environmental Physiology and later accepted a simultaneous position as the Assistant Medical Director of DAN in 1995.
Dr. Thalmann's initial studies were aimed at developing a mathematical algorithm that reflected, as closely as possible, the science of gas exchange in human tissues and which could replace early 20th century Haldanean procedures that had been modified in the mid-20th century based largely on trial and error.
Using the concepts of maximum likelihood as a theoretical foundation, Dr. Thalmann supervised hundreds of experimental dives to develop and verify a new set of decompression tables to protect divers. These tables were approved for use by the United States Navy and provide for much greater flexibility in depth and duration for safe diving and allow for the use of breathing gases other than air. This increased the operational capabilities of U.S. military divers, and the Thalmann Algorithm is being used by the United States Navy to develop diver-carried computers to calculate safe individual time limits for complex dive of varying depth.
In addition, Dr. Thalmann's theoretical work is being used to revise the standard United States Navy Decompression Tables employed for less complex dives using compressed air. This will eventually benefit future military divers as well as the thousands of civilian recreational divers, worldwide. Dr. Thalmann was also part of the team that developed the protocols used to protect U.S. astronauts from decompression sickness when they leave the 1 atmosphere environment of the International Space Station for the lower atmospheric pressure in their space suits.[8]
Raymond, L. W.; J. H. Crothers; G. Lindgren; E. D. Thalmann; W. H. Spaur; W. R. Braithwaite; H. C. Langworthy; T. E. Berghage (1973). "Indirect calorimetry in man in helium-oxygen at 50 atmospheres pressure.". pp. 848.
Raymond, L. W.; W. H. Spaur; E. D. Thalmann (1978). "Prevention of divers' ear.". pp. 48. Digital object identifier:10.1136/bmj.1.6104.48-d. PMC 1602449. PMID 620150.
Thalmann, E. D. (1983). "Phenytoin sodium in oxygen-toxicity-induced seizures.". pp. 592–3. Digital object identifier:10.1016/S0196-0644(83)80324-2. PMID 6614618.
Clayton, C. E.; M. S. Carraway; H. B. Suliman; E. D. Thalmann; K. N. Thalmann; D. E. Schmechel; C. A. Piantadosi (2001). "Inhaled carbon monoxide and hyperoxic lung injury in rats.". pp. L949–57. PMID 11557599.
Piantadosi, C. A.; E. D. Thalmann (2004). "Pathology: whales, sonar and decompression sickness.". pp. 1 p following 716; discussion 2 p following 716.. Digital object identifier:10.1038/nature02527a. PMID 15085881.
Demchenko, I. T.; Y. I. Luchakov; A. N. Moskvin; D. R. Gutsaeva; B. W. Allen; E. D. Thalmann; C. A. Piantadosi (2005). "Cerebral blood flow and brain oxygenation in rats breathing oxygen under pressure.". pp. 1288–300. Digital object identifier:10.1038/sj.jcbfm.9600110. PMID 15789033.
Albin, G.; P. Massell and E. D. Thalmann. (1990). "Basic Operation and Preliminary Trials of a Detector for Stationary Gas Bubbles.".
Thorp, J. W.; D.M. Stevens, A.J. Dutka, T.J. Doubt and E.D. Thalmann. (1992). "Pyridostigmine Prophylaxis During Warm Water Diving Operations.". pp. 23–26.
Survanshi SS, Weathersby PK, Homer LD, Thalmann ED. Design of Dive Trials. In: Lang MA, Vann RD eds: AAUS Repetitive Dive Workshop. Costa Mesa, CA. American Academy of Underwater Scientists, 1992:287-292.
Ball, R.; J. Himm, L. D. Homer, and E. D. Thalmann. (1994). "A Model of Bubble Evolution During Decompression Based on a Monte Carlo Simulation of Inert Gas Diffusion.".
Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume I. Repetitive decompression tables for air and constant 0.7 ata PO2 in N2 using a probabilistic model.".
Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume II. Repetitive dive tables: Air.".
Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume III. Exceptional exposure tables: Air.".
Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume IV. Repetitive dive tables: 0.7 ATA PO2 in N2.".
Survanshi, S. S.; E. C. Parker, E. D. Thalmann, and P. K. Weathersby. (1997). "Statistically based decompression tables XII: Volume V. Exceptional exposure tables: 0.7 ATA PO2 in N2.".
Gerth, W. A.; E. D. Thalmann. (1998). "Vascular Effects of Underwater Low Frequency Sound in Immersed Individuals.".
Vann, R.D; E.D. Thalmann (1993). "Decompression Modeling and Physiology". In Bennett, P.B. and Elliott, D.H. eds.. The Physiology and Medicine of Diving and Compressed Air Work (Fourth ed.). London: Bailliere Tindall. OCLC 2000230.
Invited Reviewer for: "Treatment of decompression sickness", Chapter 13. In: Edmonds, C.; Lowry, C., and Pennefather, J. (1992). Diving and Subaquatic Medicine (Third ed.). Oxford: Butterworth-Heinemann. OCLC 24009565.
Thalmann, E.D. (1996). "Gas Physiology in Diving: Decompression". In Fregley, M.J. and C.M. Batteis, eds.. Handbook of Physiology, Section 4: Environmental Physiology Volume II. New York: The American Physiological Society. Oxford University Press.. pp. 1012–1015.
Thalmann, E.D. (1997). "Diving Hazards". In Langley, R.L, McLymore, R.L., Meggs, W.J. and Roberson, G.T. eds.. Safety and Health in Agriculture, Forestry, and Fisheries. Rockville, MD: Government Institutes. OCLC 35750471.