Abstract: Detection of volume depletion, particularly after an incidence of volume overload is disclosed. Various methods, systems, and devices are disclosed that sense and analyze a physiological parameter related to a patient's fluid level in order to warn patients of potentially dangerous volume depletion conditions while minimizing false notifications.

Abstract: In general, the invention is directed to techniques for prioritized presentation of implantable medical device (IMD) events based on relative importance. Given a prioritization of events, the techniques permit presentation of events in an order or format that directs a clinician's attention to important events. In some embodiments, a clinician simultaneously views events obtained from multiple IMDs associated with multiple patients, e.g., via single user interface, and is aided by an order or format of presentation that reflects event prioritization. In some cases, an IMD event with a priority above a predetermined threshold triggers special actions. As one example, an event with a high relative importance may be presented using a conspicuous text format. As another example, an event with a priority above the threshold may trigger a notification to a clinician, or other persons.