[Acute low back pain with progressive sensorimotor paralysis. Differential diagnosis and therapy of acute decompression disease].

METHODS

A 38-year-old man presented with acute low back pain and paraesthesia in dermatome S1. 4 hours before onset of symptoms he had finished the last of three scuba dives with a maximum depth of 30 m and a total diving time of 3 hours. No alcoholic beverages were taken during or before diving. The patient was complaining of local pain in the thoracic and lumbar spine and showed a 3/5 weakness of the big toe and impaired sensitivity in the S1 dermatome. 90 minutes later the patient developed a hemiparesis of the right side including hypaesthesia and additional meningism (stiff neck).

METHODS

The X-rays of the thoracic and lumbar spine in two standard planes, cerebrospinal fluid examination, a cranial spiral-computer tomographie (CCT) and laboratory investigations showed no pathologic values.

METHODS

Acute decompression sickness (DCS) type II.

METHODS

The patient received an intravenous infusion, antiinflammatory prophylaxis with dexamethasone and an immediate submission to hyperbaric oxygenation therapy. Complete recovery of neurological symptoms appeared after 4 decompression sessions in a hyperbaric chamber.

CONCLUSIONS

In patients presenting low back pain as common symptoms the differential diagnosis needs to be worked out and DCS should be included especially if progressive neurologic deficits are present. Only emergency hyperbaric oxygen therapy can compromise a sufficient therapy of these patients.