Unique Insight to Help Guide Patient Care

+ How to use CardioSight Reports

+ Cardiac Compass Report
- Last 90 Day Zoom

+ Heart Failure Management Report
- Last 90 Day Zoom

CardioSight Service provides access to exclusive 90-day trended information in the Heart Failure Management or Cardiac Compass^® Trends Report for many of Medtronic's ICD and CRT-D devices. Temporal alignment of trended information allows clinicians to easily assess changes across multiple dimensions.

Use the Reports to:

• Track intrathoracic impedance to help monitor fluid accumulation in the thorax
• Corroborate patient symptoms
• Identify asymptomatic arrhythmias
• Evaluate the efficacy of arrhythmia treatments
• Monitor heart failure progression
• Titrate drug dosages

Clinical Trends Include:

OptiVol™ Fluid Index and Intrathoracic Impedance*
OptiVol Fluid Trends track a patient's fluid condition by comparing the Daily average impedance values with a Reference impedance line. Relative changes from the Reference impedance line are trended in the OptiVol Fluid Index Chart.
Ambulatory impedance data from an implanted device may be a useful tool to monitor fluid status in heart failure patients and may contribute to better management of these patients.¹

Total Daily AT/AF Time
Displays the amount of time each day the patient experiences high-rate episodes.
The presence of any atrial high-rate episode detected with an implanted device was an independent predictor of the following: total mortality (p=-0.0092); death or nonfatal stroke (p=0.0011); and atrial fibrillation (p=0.0001).²

Patient Activity
Displays the weekly average hours per day that the patient is active (based on the activity sensor)
Patient activity strongly correlates with the NYHA Functional Class and the six-minute hall walk distance.³

Average Ventricular Rate
Displays the average day heart rate (8 a.m. to 8 p.m.) and the average night heart rate (midnight to 4 a.m.).
An increase in night heart rate strongly correlates with worsening NYHA Functional Class and six-minute hall walk distance.⁴

Heart Rate Variability
Displays the amount of variability in the patient's heart rate.
Depressed heart rate variability in heart failure patients is an independent predictor of death.⁵

*Available for devices with OptiVol™ Fluid Status Monitoring capabilities.

References

¹Abraham W, Foreman B, Fishel R, Odyrzynski N. Clinical value of measuring intra-thoracic impedance in patients with chronic heart failure - Fluid Accumulation Status Trial (FAST). JACC 2005;45(3):153A-154(A).
²Glotzer TV, Hellkamp AS, Zimmerman J, et al, for the MOST investigators. Atrial high rate episodes detected by pacemaker diagnostics predict death and stroke. Report of the atrial diagnostics ancillary study of the MOde Selection Trial (MOST). Circulation. 2003:107:1614-1619.
³ O'Toole MF, Rauh RA, Schwabauer NJ, et al. Trends of patient physical activity for heart failure monitoring. JACC 1999;ACC Abstracts;1228-10.
⁴Padmanamhan V, Stone KA, O'Toole MF, et al. Night heart rate trends correlate with changes in heart failure JACC 1999;ACC Abstracts:1228-6.
⁵As measured by SDANN: Ponikowski P, Anker SD, Chua TP, et al. Depressed heart rate variability as an independent predictor of death in chronic congestive heart failure secondary to ischemic or idiopathic dilated cardiomyopathy. Am J Cardiol. 1997;79(12);1645-1650

©Medtronic, Inc. 2008                                                   • Contact Medtronic • Privacy Statement • Terms of Use • Site Map