Classification of tympanomastoid surgery

The SAMEO-ATO framework was developed by the International Otology Outcome Group (IOOG).

SAMEO-ATO staging in a few simple steps
free to use

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ENT database

  1. Open Safari. Other browsers, such as Chrome, won’t work.
  2. Navigate to 
  3. Tap the Share button at the bottom of the page.
  4. On the bottom row of icons, scroll over until you see Add to Home Screen and tap this.
  1. Open Chrome (usually your default web browser on Android)
  2. Navigate to
  3. Tap the three-dot menu button in the top-right corner and choose Add to Home Screen.
  4. Just tap ADD when you’re ready.