Abstract: A cardiac rhythm management system includes a first implantable device such as a defibrillator and a second implantable device such as a leadless cardiac pacemaker. A programmer is configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker. The heart data emanating from the leadless cardiac pacemaker is displayed in temporal alignment with the heart data emanating from the implantable defibrillator.

Abstract: Various aspects of the present subject matter relate to an implantable device. Various device embodiments comprise at least one port to connect to at least one lead with at least electrode, stimulation circuitry connected to the at least one port and adapted to provide at least one neural stimulation therapy to at least one neural stimulation target using the at least one electrode, sensing circuitry connected to the at least one port and adapted to provide a sensed signal, and a controller connected to the stimulation circuitry to provide the at least one neural stimulation therapy and to the sensing circuitry to receive the sensed signal. In response to a triggering event, the controller is adapted to switch between at least two modes. Other aspects and embodiments are provided herein.

Abstract: This document discusses, among other things, using a pressure sensor to detect body sound information of a patient, such as cardiac murmurs, respiratory sounds, etc.

Abstract: A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart. The LCP may include a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a pressure sensor secured relative to the housing and coupled to the environment outside of the housing. The LCP may further include circuitry in the housing in communication with the first electrode, the second electrode, and the pressure sensor. The circuitry may be configured to determine and store a plurality of impedance-pressure data pairs, from which a representation of a pressure-volume loop may be determined.

Abstract: Systems and methods for treating cardiac arrhythmias. One example medical device system for delivering electrical stimulation therapy to a heart of a patient may comprise a leadless cardiac pacemaker (LCP) implanted within a heart of a patient and configured to determine occurrences of cardiac arrhythmias, a medical device configured to determine occurrences of cardiac arrhythmias and to deliver defibrillation shock therapy to the patient, wherein the LCP and the medical device are spaced from one another and communicatively coupled, and wherein after the LCP determines an occurrence of a cardiac arrhythmia, the LCP is configured to modify the defibrillation shock therapy of the medical device.

Abstract: An apparatus comprises plurality of sensors and a processor. Each sensor provides a sensor signal that includes physiological information and at least one sensor is implantable. The processor includes a physiological change event detection module that detects a physiological change event from a sensor signal and produces an indication of occurrence of one or more detected physiological change events, and a heart failure (HF) detection module. The HF detection module determines, using a first rule, whether the detected physiological change event indicative of a change in HF status of a subject, determines whether to override the first rule HF determination using a second rules, and declares whether the change in HF status occurred according to the first and second rules.

Abstract: Systems and methods for coordinating treatment of abnormal heart activity using multiple implanted devices within a patient. In one example, abnormal heart activity may be sensed by a medical device system. One of the devices of the system may determine to deliver anti-tachycardia pacing therapy to the heart of the patient, and may communicate an instruction to another of the devices of the medical device system to deliver anti-tachycardia pacing (ATP) therapy to the heart. The receiving medical device may then deliver ATP therapy to the heart of the patient.

Abstract: A hospitalization management system including a heart failure analyzer that receives diagnostic data including at least sensor data representative of one or more physiological signals sensed from a hospitalized patient using one or more sensors and assesses risk of rehospitalization for the patient using the diagnostic data. The outcome of the risk assessment is used during and following the patient's hospitalization for reducing the risk of rehospitalization.

Abstract: Methods, devices, and systems for performing pacing capture verification in implantable medical devices such as a leadless cardiac pacemakers using a pressure signal. An example medical device includes a pressure sensor and is configured to monitor for an evoked capture response using the pressure sensor following pace delivery. Various factors of the pressure waveform may be used including the use of threshold, templating, and slope, as well as comparing cross-domain sensed events including using a fiducial point from the pressure signal for comparison to an acoustic, electrical, or motion event, or the use of data obtained from a second device which may be implanted, wearable, or external to the patient.

Abstract: An implantable medical device (IMD) that includes a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a gyroscope secured relative to the housing. The IMD may include circuitry in the housing in communication with the first electrode, the second electrode, and the gyroscope. The circuitry may be configured to determine and store a plurality of torsion data measurements, from which a representation of a twist profile may be determined.

Abstract: An embodiment of a device for reporting a heart failure status of a patient comprises: a parameter acquisition module configured to acquire at least one trended heart failure parameter; a predetermined event acquisition module configured to acquire at least one predetermined event corresponding to the at least one trended heart failure parameter, wherein each of the at least one predetermined event represents an event condition where a predetermined event definition is satisfied; an alert acquisition module configured to acquire at least one heart failure status alert associated with the at least one predetermined event, wherein each of the at least one alert represents an alert condition where a predetermined alert definition is satisfied; and an output communication module configured to communicate the at least one heart failure status alert.

Abstract: This document discusses, among other things, systems and methods to determine an indication of contractility of a heart of a patient using received physiologic information, and to determine blood pressure information of the patient using the heart sound information and the determined indication of contractility of the heart. The system can include an assessment circuit configured to determine an indication of contractility of a heart of the patient using first heart sound (S1) information of the patient, and to determine blood pressure information of the patient using second heart sound (S2) information of the patient and the determined indication of contractility of the heart.

Abstract: A ventricular implantable medical device that is configured to detect an atrial timing fiducial from the ventricle. The ventricular implantable medical is configured to deliver a ventricular pacing therapy to the ventricle based on the detected atrial timing fiducial. If the ventricular implantable medical device temporarily fails to detect atrial activity because of noise, posture, patient activity or for any other reason, an atrial implantable medical device may be configured to communicate atrial events to the ventricular implantable medical device and the ventricular implantable medical device may synchronize the ventricular pacing therapy with the atrium activity based on those communications.

Abstract: An implantable medical device (IMD) includes a heterogeneous housing configured to receive and store one or more components of the IMD. The housing includes an intrinsically non-conductive and non-magnetic base material and at least one dopant with a property of at least one of electrical conductance and magnetic permeability. The base material and the dopant form a first region of the housing including a first skin depth and a second region of the housing including a second skin depth different than the first skin depth.

Abstract: A ventricularly implantable medical device that includes a sensing module that is configured to identify a search window of time within a cardiac cycle to search for an atrial artifact. Control circuitry in the ventricular implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart, wherein the ventricular pacing therapy is time dependent, at least in part, on an atrial event identified in the search window of time.

Abstract: A ventricularly implantable medical device that includes a sensing module that is configured to detect an atrial fiducial and identify an atrial contraction based at least on part on the detected atrial fiducial. Control circuitry in the implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart based at least in part on the identified atrial contraction, and can automatically switch or revert the ventricular pacing therapies on the fly.

Abstract: A ventricularly implantable medical device that includes a sensing module that is configured to gather information during a cardiac cycle and to identify a cardiac interval based at least on part on the gathered information. Control circuitry in the implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart, wherein the ventricular pacing therapy is time dependent, at least in part, on the identified cardiac interval.

Abstract: An example of a system for monitoring and treating respiratory distress in a patient may include one or more non-invasive monitoring devices to acquire patient condition signals and a respiratory distress monitoring circuit to monitor a state of the respiratory distress using the patient condition signals. The respiratory distress monitoring circuit may include a signal processing circuit to generate patient condition parameters using the patient condition signals and a respiratory distress analyzer, which may include a parameter analysis circuit and a notification circuit. The parameter analysis circuit may be configured to produce a patient condition metric being a function of the patient condition parameters and to perform prediction and/or detection of an exacerbation of the respiratory distress based on the patient condition metric. The notification circuit may be configured to produce an alert notifying a result of the performance of the prediction and/or detection.

Abstract: A ventricularly implantable medical device that includes a sensing module that is configured to detect an artifact during ventricular filling and to identify an atrial event based at least on part on the detected artifact. Control circuitry of the implantable medical device is configured to deliver a ventricular pacing therapy to a patient's heart, wherein the ventricular pacing therapy is time dependent, at least in part, on the identified atrial event.

Abstract: An example of a system for monitoring and treating respiratory distress in a patient may include signal inputs, a signal processing circuit, and a respiratory distress analyzer. The signal inputs may be configured to receive patient condition signals indicative of autonomic balance of the patient. The signal processing circuit may be configured to process the patient condition signals and to generate patient condition parameters indicative of the autonomic balance using the processed patient condition signals. The respiratory distress analyzer may be configured to determine a state of the respiratory distress using the patient condition parameters, and may include a parameter analysis circuit configured to analyze the autonomic balance of the patient and to determine the state of the respiratory distress using an outcome of the analysis.