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  4. Dysbaric osteonecrosis of the humeral head in a patient with type 2 decompressive sickness

Dysbaric osteonecrosis of the humeral head in a patient with type 2 decompressive sickness

Spinal Cord Series and Cases, 2021 · DOI: https://doi.org/10.1038/s41394-021-00414-5 · Published: May 24, 2021

NeurologyMedical ImagingRehabilitation

Simple Explanation

Decompression sickness occurs when a person experiences a rapid reduction in pressure, leading to the formation of gas bubbles in the blood and tissues. Dysbaric osteonecrosis is a specific type of avascular necrosis (bone death due to lack of blood supply) that can occur in divers and those working in compressed air environments as a late effect of decompression sickness. This case report describes a patient who developed dysbaric osteonecrosis of the humeral head (shoulder) following type 2 decompression sickness, highlighting the importance of recognizing this rare complication.

Study Duration
Not specified
Participants
1 male patient
Evidence Level
Level 4: Case Report

Key Findings

  • 1
    A 38-year-old male diver developed type 2 decompression sickness with spinal cord involvement after a rapid ascent from a dive.
  • 2
    The patient was diagnosed with dysbaric osteonecrosis of the humeral head 60 days after initial presentation with decompression sickness.
  • 3
    MRI and X-ray imaging confirmed early osteonecrosis in the humeral shaft, indicating areas of infarct.

Research Summary

This case report describes a patient who developed dysbaric osteonecrosis of the humeral head following type 2 decompression sickness. The diagnosis of dysbaric osteonecrosis impacted the patient's rehabilitation prescription due to the increased risk of pathological fractures. The authors emphasize the importance of increased awareness among physicians to consider dysbaric osteonecrosis in patients exposed to hyperbaric environments, even after the acute phase of decompression sickness has passed.

Practical Implications

Early Diagnosis

Increased awareness among physicians can lead to earlier diagnosis of dysbaric osteonecrosis in patients with a history of decompression sickness.

Rehabilitation Adjustments

Recognition of dysbaric osteonecrosis necessitates adjustments in rehabilitation prescriptions to minimize the risk of pathological fractures.

Monitoring

Patients with a history of decompression sickness should be monitored for signs and symptoms of dysbaric osteonecrosis, even months after the initial event.

Study Limitations

  • 1
    Single case report limits generalizability.
  • 2
    Lack of long-term follow-up data.
  • 3
    Specific risk factors for this patient may not apply to all divers.

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