How execute a stored procedure in silex with dbal (doctrine)?

Question

I was looking for this information on the site http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/data-retrieval-and-manipulation.html - but have not found anything. I tried to write in the style of PDO and a got syntax error, but the request was performed. Maybe someone knows what is the reason? Thanks

Mysql version 5.5 Php version 5.5 Ubuntu 13.04

EDIT:

Use this:

$query = $app['db']->prepare('CALL AddIncoming(?)');
$query->bindValue(1, $id_user);
$query->execute();