Presentation on theme: "The Clinical Evaluation of Remote Notification to Reduce Time to Clinical Decision (CONNECT) Trial The Value of Remote Monitoring George H. Crossley, MD."— Presentation transcript:
The Clinical Evaluation of Remote Notification to Reduce Time to Clinical Decision (CONNECT) Trial The Value of Remote Monitoring George H. Crossley, MD President, Mid-State Cardiology, a unit of St. Thomas Heart Clinical Professor of Medicine University of Tennessee College of Medicine
Disclosures Medtronic Sponsored study Medtronic: Speaker, research & consulting significant Boston Scientific: speaker St. Jude: research
Study Purpose To demonstrate that remote monitoring with automatic clinician notifications reduces the time from a clinical event to a clinical decision in response to arrhythmias, cardiovascular disease progression, and device issues as compared to standard in-office care. Rates of cardiovascular health care utilization (HCU) between treatment groups
Study Design Randomized, multi-center prospective study –N = 1,997 newly implanted CRT-D and DR-ICD patients –136 US centers –Remote management system vs. standard In-office care –Patients followed remotely for 12 months (Remote Arm) Remote Arm 1014 pts Enrollment In-office Arm 983 pts 1 Month Office F/U Patient signs Informed Consent/HIPAA Authorization implanted with a study device and randomized Enrollment 1 Month Office F/U 3 Month Remote F/U3 Month Office F/U 6 Month Remote F/U6 Month Office F/U 9 Month Remote F/U9 Month Office F/U 12 Month Remote F/U12 Month Office F/U 15 Month Office F/U Crossley G, Boyle A, Vitense H, Sherfesee L, Mead RH. Trial design of the clinical evaluation of remote notification to reduce time to clinical decision: the Clinical evaluation Of remote NotificatioN to rEduCe Time to clinical decision (CONNECT) study. Am Heart J. 2008 Nov;156(5):840-6. Epub 2008 Sep 11.
Required Study Programming RemoteIn-office Medtronic CareLink® Home MonitorProvidedNot Provided Clinical Management Alerts AT/AF BurdenAutomatic Clinician Alert, 12 hrs/dayOff Fast V. Rate during AT/AFAutomatic Clinician Alert, 120 bpm x ≥ 6 hrs AT/AF /dayOff Number of Shocks DeliveredAutomatic Clinician Alert, 2 Shocks DeliveredOff All Therapies Exhausted in a ZoneAutomatic Clinician AlertOff Lead / Device Integrity Alerts Lead Impedance Out of RangeAutomatic Clinician and Audible Patient AlertAudible Patient Alert VF Detection / Therapy OffAutomatic Clinician and Audible Patient AlertAudible Patient Alert Low Battery VoltageAutomatic Clinician and Audible Patient AlertAudible Patient Alert Excessive Charge TimeAutomatic Clinician and Audible Patient AlertAudible Patient Alert
All events that did or would have triggered alerts if device programmed accordingly included –Events that triggered alerts: the center logged date of clinical decision –Events that did not trigger alerts: date of decision was date of first device interrogation following event –Time to decision determined for each event, and for each subject with an event, these times were averaged –Due to skewness of data, nonparametric test used to compare time to decision per patient between arms For health care utilization, multiple events proportional hazards models used to compare rates of each of the following between arms: –CV hospitalizations –ED visits –Unscheduled clinic visits Study Methods
Study Demographics Patient CharacteristicsRemote (n=1014)In-office (n=983) Male70.5%71.7% Age (years)65.2 ± 12.464.9 ± 11.9 CRT-D36.4%35.3% LVEF (%)28.6 ± 10.029.2 ± 10.3 NYHA No HF Class I Class II Class III Class IV 5.3% 3.9% 40.9% 48.5% 1.5% 6.7% 4.7% 39.5% 47.5% 1.5%
Primary Endpoint Event to Clinical Decision (median time) (per patient with at least one event) Time from event to clinical decision in the Remote Arm was significantly shorter than in the In-office Arm (p<0.001) Median time in the Remote arm was 4.6 days vs. 22 days in the In-office arm Note: Data includes events for patients who crossed over, were non-compliant or had alerts occur prior to home monitor setup
Time from Event to Decision by Alert Type (median days) Device EventNo. of Events (No. of Patients) No. of Days from Event Onset To Clinical Decision Median (Interquartile Range) RemoteIn-officeRemoteIn-office AT/AF burden at least 12 hrs 437 (107)280 (105)3 (1, 15)24 (7, 57) Fast V rate at least 120 bpm during at least 6 hrs AT/AF 41 (26)47 (37)4 (2, 13)23 (5, 40) At least 2 shocks delivered in an episode 44 (35)32 (23)0 (0, 1.5)0 (0, 2) Lead impedances out of range 26 (18)12 (6)0 (0, 9)17 (5.5, 45) All therapies in a zone exhausted for an episode 16 (12)11 (6)0 (0, 1)9 (0, 36) VF detection/therapy off 10 (10)8 (8)0 (0, 0)0 (0, 84) Low battery 1 (1) 300 Total 575 (172)391 (145)3 (0, 13)20 (4, 52)
Results of Clinician Alert Transmissions (Remote Arm)
Clinic Visits (Scheduled and Unscheduled) By replacing routine clinic visits with remote monitoring, the observed rate of total clinic visits per patient year was Remote (3.92) vs. In-office (6.27)
Health Care Utilization Visits by Treatment Arm * Includes Urgent Care Visits
Impact of Remote Management Remote Arm = 3.3 days per hospitalization In-office Arm = 4 days per hospitalization Mean reduction 18% Estimated savings per hospitalization $1,659* This study showed the Remote Arm had significantly shorter hospitalization length of stays than In-office Arm (p=0.002) (p = 0.002) * Estimated using the Medicare Limited Data Set - Standard Analytic Files from 2002-2007
Conclusions A significant reduction in time from onset of events to clinical decisions in response to arrhythmias, and device issues Replacement of routine in-clinic follow-up visits with remote transmissions did not increase other health care utilizations (cardiovascular hospitalizations, emergency department, and unscheduled clinic visits) A significant reduction in mean length of stay per cardiovascular hospitalization In this study monitoring patients remotely with automatic clinician alerts showed:
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