Monitoring of "Last Check" possible?


Lately we hat some touble after an update of the Database.
The Checks to the hosts and Services just stopped without any alarms in Icinga.
We just could see that the “last Check” and “next Check” where no longer updated and stopped at the Time the trouble startet

Is it possible to read the “last Check” out of the Database and make an alarm in Case of such problems, , e.g. if “last Check” is more then 15 min not updated?
How? In whicht Database/Table? Is there an known check for that?