MDCalc

Edmonton Obesity Staging System (EOSS)

Stratifies the presence and severity of obesity-related health impairments.

Obesity-related risk factors

Physical symptoms or functional limitations

Psychological symptoms

Result:

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Advice
  • This tool can be used to determine appropriate treatments and medical services for patients based on their individual obesity-related risks and complications.
  • For patients undergoing bariatric surgery planning:
    • Stage 3 and 4 are associated with increased risk of postoperative complications, including a higher 30-day mortality.
    • Patients found to be in higher stages should be counseled on the increased risk of postoperative complications.
    • However, this tool should not be used to exclude patients from surgical consideration. The benefits of surgery often outweigh the risks and should be assessed by the clinician on a case-by-case basis.
Management

The derivation study for this tool proposed management based on the resulting clinical and functional staging:

Stage

Management

0

  • Identify factors contributing to increased body weight.

  • Provide counseling on lifestyle measures, such as healthy eating and physical activity.

1

  • Investigate for other (non-weight related) contributors to risk factors.

  • Implement more intensive lifestyle interventions, including diet and exercise.

  • Monitor risk factors and health status.

2

  • Initiate obesity treatments, including consideration for all behavioral, pharmacological, and surgical options.

  • Closely monitor and manage comorbidities, as indicated.

3

  • Initiate more intensive obesity treatment.

  • Aggressively manage comorbidities, as indicated.

4

  • Pursue aggressive obesity management, as deemed feasible.

  • Consider additional measures, including pain management, occupational therapy, and psychosocial support.

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