Implantable Cardiac Devices
Implantable cardiac device diagnostics help early detection and treatment. Medtronic offers a variety of device diagnostics in an easy to read format accessible both in-clinic and remotely.
Cardiac Compass® Trends and Heart Failure Management
Reports offer a multidimensional perspective of patients’ clinical
This suite of trends provides clinicians another set of tools to help guide therapy decisions and identify clinical issues early, so as to intervene.
Before and Since Last Visit histograms provide unique additional insight.
Detailed EGM™ Viewer* displays symptomatic episodes to aid in your
assessment of the patient’s condition.
Patient-activated EGM storage is accessed remotely on the Medtronic CareLink® Network.
* Detailed EGM Viewer is a feature in select Medtronic devices.
One of the most difficult arrhythmias to manage is AT/AF. Successful management requires patient monitoring to understand the amount of AT/AF burden the patient is experiencing. With this information, physicians may properly manage a patient’s need for:
Cardiac Compass Reports provide:
REVEAL® XT Insertable Cardiac Monitor Cardiac Compass Report
Reports can be accessed via:
* Accurate = true daily burden > 10 minutes: AF burden accurate in 92% of patients. True daily burden ≤ 10 minutes: absence of AF appropriately detected in 96% of patients.
Medtronic pacemakers provide a variety of easy to use diagnostics to help clinicians assess a patient’s condition.
TherapyGuide simplifies and tailors programming by providing
suggested device settings based on physician-selected patient
Concise information to:
For clinicians, the challenge is identifying and managing those patients at risk for decompensation and the resulting hospitalization. The Medtronic Cardiac Compass® Report with OptiVol® Fluid Status Monitoring provides the industry’s most comprehensive heart failure diagnostics, offering clinicians another set of tools to help guide decisions.
The Cardiac Compass/Heart Failure Management Report provides:
Clinical Application of the HF Diagnostic Trends (PDF, 684 KB)
Histograms include information prior to and since last session for easy comparison.
The Rate Histograms Report includes:
CardioSight Reader for In-Clinic Access to Heart Failure Management Report
CareLink Programmer for Data Access and Device Interrogation Data
The Thoracic Impedance Trend plots the daily averages of the patient’s raw intrathoracic impedance against the reference trend. It is an accurate representation of the patient’s impedance status.
The atrial tachycardia/atrial fibrillation burden trend plots the total time spent in AT/AF on a daily basis.
Ventricular Rate During AT/AF
This trend displays the daily average and maximum ventricular rates occurring during AT/AF.
Graph of Patient Activity
The device accelerometer accumulates the number of activity counts sensed each minute. A minute is considered active if the counts exceed a threshold equal to walking approximately 70 steps per minute. The graph displays the total time active per day.
The daily average night (12 am – 4 am) and day (8 am – 8 pm) heart rate are trended on this graph.
Heart Rate Variability
The median atrial heart rate is determined every 5 minutes and a variability value is plotted each day. HRV is not computed if > 80% of the time is pacing or AT/AF.
Percent Pacing Per Day (A/V)
The Percent Pacing Per Day trend provides a view of pacing over time; it displays the daily percentage of atrial and ventricular pacing.
One or More Shocks per Day
This trend displays an annotation for the day on which a defibrillation therapy, cardioversion therapy, or atrial shock therapy was delivered.
This trend provides a history of ventricular tachyarrhythmias. The device records the total number of spontaneous VT and VF episodes each day.
Abraham W, Foreman B, Fishel R, Hass G, Moe B. Fluid accumulation status trial (FAST). Heart Rhythm. May 2005;2(5):S65-S66.
Lüthje L, Vollmann D, Drescher T, et al. Intrathoracic impedance monitoring to detect chronic heart failure deterioration: relationship to changes in NT-proBNP. Eur J Heart Fail. June-July 2007;9(6-7):716-722.
Whellan DJ, Al-Khatib SM, Kloosterman EM, et al. Changes in intrathoracic fluid index predict subsequent adverse events: results of the multi-site Program to Access and ReviewTrending INformation and Evaluate CoRrelation to Symptoms in Patients with Heart Failure (PARTNERS HF) Trial. J Card Fail. November 6, 2008;14(9):799.
Germany R, et al. Acute changes in intrathoracic impedance are associated with increased risk of heart failure hospitalization. Heart Rhythm. May 2008;5(suppl): (PO6-84) S388.
Strickberger SA, Ip J, Saksena S, Curry K, Bahnson TD, Ziegler PD. Relationship between atrial tachyarrhythmias and symptoms. Heart Rhythm. February 2005;2(2):125-131.
Ziegler PD, Koehler JL, Mehra R. Comparison of continuous versus intermittent monitoring of atrial arrhythmias. Heart Rhythm. December 2006;3(12):1445-1452.
Capucci A, Santini M, Padeletti L, et al. Monitored atrial fibrillation duration predicts arterial embolic events in patients suffering from bradycardia and atrial fibrillation implanted with antitachycardia pacemakers. J Am Coll Cardiol. November 15, 2005;46(10):1913-1920.
Ousdigian KT, Johnson WB, Koehler JL, Wilkoff BL. Very poor rate control during atrial tachyarrhythmias predicts cardiovascular hospitalizations. J Card Fail. August 2006;12(6)(suppl 1):S57-S58.
Willems R, Morck ML, Exner DV, Rose SM, Gillis AM. Ventricular high-rate episodes in pacemaker diagnostics identify a high-risk subgroup of patients with tachy-brady syndrome. Heart Rhythm. October 2004;1(4):414-421.
Dorian P, Philippon F, Thibault B, et al, for the ASTRID Investigators. Randomized controlled study of detection enhancements versus rate-only detection to prevent inappropriate therapy in a dual-chamber implantable cardioverter-defibrillator. Heart Rhythm. November 2004;1(5):540-547.
Ousdigian KT, Thompson D, Qi D, et al. A single day of AF with poor rate control predicts a subsequent week of reduced CRT. [abstract PO6-68]. Heart Rhythm. 2007;4(Suppl 5S): S379.
Adamson PB, Smith AL, Abraham WT, et al. Continuous autonomic assessment in patients with symptomatic heart failure: prognostic value of heart rate variability measured by an implanted cardiac resynchronization device. Circulation. October 19, 2004;110(16):2389-2394.
Braunschweig F, Mortensen PT, Gras D, et al. Monitoring of physical activity and heart rate variability in patients with chronic heart failure using cardiac resynchronization devices. Am J Cardiol. May 1, 2005;95(9):1104-1107.
Fantoni C, Raffa S, Regoli F, et al. Cardiac resynchronization therapy improves heart rate profile and heart rate variability of patients with moderate to severe heart failure. J Am Coll Cardiol. November 15, 2005;46(10):1875-1882.
Casolo GC, Stroder P, Sulla A, Chelucci A, Freni A, Zerauschek M. Heart rate variability and functional severity of congestive heart failure secondary to coronary artery disease. Eur Heart J. March 1995;16(3):360-367.
Gasparini M, Auricchio A, Regoli F, et al. Four-year efficacy of cardiac resynchronization therapy on exercise tolerance and disease progression: the importance of performing atrioventricular junction ablation in patients with atrial fibrillation. J Am Coll Cardiol. August 15, 2006;48(4):734-743.
Sweeney MO, Hellkamp AS. Heart failure during cardiac pacing. Circulation. May 2, 2006;113(17):2082–2088.
Smit MD, Van Dessel PF, Nieuwland W, et al. Right ventricular pacing and the risk of heart failure in implantable cardioverter-defibrillator patients. Heart Rhythm. December 2006; 3(12):1397-1403.
For clinicians, the Medtronic Cardiac Compass® Report provides comprehensive heart failure diagnostics, offering clinicians another set of tools to help guide decisions.