The main purpose of this project is to identify the medium-term prognostic factors for patients with Severe Acquired Brain Injuries and evaluate their impact.

The secondary aim is to create a system of continuous assessment of the quality of care for each rehabilitation unit.

For each unit involved, it will be collected these data :

• Structural and organizational data of the Rehabilitation Units for Severe Acquired Brain Injuries;
• Detailed information on patients upon entering Rehabilitation Units for Severe Acquired Brain Injuries;
• Detailed information on patients, re-evaluated 4 months after the acute event

Statistical models will be implemented, in order to identify prognostic factors that could predict the probability to observe three events, which represent objectives of the rehabilitation process: decannulation, trunk control and total feeding by os. These events should be evaluated four months after the acute episode.

Inclusion Criteria:

• patients with Serious Acquired Brain Injuries
• admission to rehabilitation units

Exclusion Criteria:

- patients admitted more than 14 weeks after the acute event

All patients admitted in the Rehabilitation Units for Severe Acquired Brain Injuries participating in the study during the 30 months of enrollment provided by the research

Protecting the privacy policy, all the data that underlie results in a publication will be shared. The scientific commettee of the study has to decide the criteria and the best way to share them