INTRODUCTION Hyperbaric work was conducted for constructing an underground tramway in the Netherlands. A total of 11,647 exposures were conducted in 41,957 hours. For these working conditions specifically developed oxygen decompression tables were used. METHODS Fifteen workers were submitted to Doppler monitoring after caisson work at a depth at 12 msw. Measurements were done according to the...

Open surgical decompression of the tarsal tunnel is the standard surgical approach for compression of the tibial nerve within the tarsal tunnel. Complications associated with this approach can be significant and periods of non-weight bearing are required. An alternative approach allowing for minimal soft tissue trauma and reduced time to ambulation is therefore desirable. Endoscopic tarsal tunn...

Reduction in ascent speed and an increase in the O2 tension in the inspired air have been used to reduce the risk for decompression sickness. It has previously been reported that decompression speed and O2 partial pressure are linearly related for human decompressions from saturation hyperbaric exposures. The constant of proportionality K (K = rate/partial pressure of inspired O2) indicates the...

DECOMPRESSION SICKNESS (DCS) was first described in the early 19th century in compressed-air workers and divers who, after decompressing from increased ambient pressure, developed joint pain, paresthesias, and sometimes spinal cord injury or death. In animal experiments, Paul Bert (1) in Paris was able to demonstrate bubble formation after decompression, which he confirmed as due to inert-gas (...

Study Design Systematic review. Study Rationale One of the most consistent indications for a Chiari decompression is tonsillar descent meeting the radiographic criteria and an associated syrinx in a symptomatic patient. In counseling patients about surgery, it would be advantageous to have information regarding the expected outcome with regard to the syrinx and other possible treatments availab...

Since the first article introducing doubleballoon endoscopy (DBE) was published in 2001 [1], the technique has proven effective for deep intubation of the small bowel and is used in clinical practice worldwide. However, the intubation depth is sometimes limited by the distension of the small bowel due to air insufflation during the procedure. In a recent report [2], the total success rate using...

BACKGROUND Treatment of Chiari malformation can include suboccipital decompression with resection of one cerebellar tonsil. Its effects on ocular motor and cerebellar function have not yet been systematically examined. OBJECTIVE To investigate whether decompression, including resection of one cerebellar tonsil, leads to ocular motor, vestibular, or cerebellar deficits. PATIENTS AND METHODS ...

Introduction. Occipitocervical (OC) fusion is a method for fixation of the OC junction when there instability that segment. Arnold Chiari malformation congenital disorder where cerebellar tonsils descend through foramen magnum, which can lead to corticomedullar compression and formation syrinx. While treating this condition, purpose decompression, magnum expanded, potentially harm stability jun...

BACKGROUND There are few reports concerning chronic compartment syndrome producing symptoms in the forearm, although in the lower limb this is a well recognised condition. The objective was to demonstrate that chronic compartment syndrome is a cause of exercise induced forearm pain and transient upper limb dysfunction and that forearm compartment decompression can reliably relieve the associate...

EFFICIENT EXECUTION OF COMPRESSED PROGRAMS by Charles Robert Lefurgy Chair: Trevor Mudge Code compression is the technique of using data compression to reduce the program memory size for memory-limited, embedded computers. For system-on-a-chip designs, this reduces the system die area which lowers die cost. After compilation, the binary (native code) program is compressed and stored in the embe...