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Transcript of 9/5/20151 Ventricular Assist Device (VAD) Patients in the Community Liz Amerman, RN, BSN IU Health...
![Page 1: 9/5/20151 Ventricular Assist Device (VAD) Patients in the Community Liz Amerman, RN, BSN IU Health Methodist VAD Program Manager April 18, 2012.](https://reader030.fdocuments.in/reader030/viewer/2022033022/56649e175503460f94b0220f/html5/thumbnails/1.jpg)
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Ventricular Assist Device (VAD) Patients Ventricular Assist Device (VAD) Patients in the Communityin the Community
Liz Amerman, RN, BSNIU Health Methodist
VAD Program ManagerApril 18, 2012
![Page 2: 9/5/20151 Ventricular Assist Device (VAD) Patients in the Community Liz Amerman, RN, BSN IU Health Methodist VAD Program Manager April 18, 2012.](https://reader030.fdocuments.in/reader030/viewer/2022033022/56649e175503460f94b0220f/html5/thumbnails/2.jpg)
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Discuss available ventricular assist devices
for home use Review clinical indications
for placement
of ventricular assist devices Understand VAD patient care
requirements
in the home environment Case studies
Learning ObjectivesLearning Objectives
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Heart Failure in the US
• Heart failure accounts for 34% of cardiovascular-related deaths
• 670,000 new cases of heart failure are diagnosed in the US every year
• 277,000 deaths are caused by heart failure each year
• Heart failure is the most frequent cause of hospitalization in patients older than 65 years, with an annual incidence of 10 per 1,000
• Rehospitalization rates during the 6 months following discharge are as much as 50%
• 2010 estimated total cost of heart failure in US $39.2 billion, representing 1-2% of all health care expenditures
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Disease Progression
Jessup, NEJM 2003
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Heart Transplants in US
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Volume of VAD Patients
Year Patient Volume BTT BTD DT Device Types
2012 34 12 4 2229 HM II, 5 Heartware,
4 AbiomedReplaced 2 HM II
2011 27 11 0 1620 HM II, 5 Heartware,
2 Thoratec, 1 Abiomed 1 patient had a HM II and Abiomed
2010 31 18 49(1
replaced)
19 HMII; 4 Heart Ware; 3 L P/I-VAD, 5 Abiomed
2009 32 17 114(2
replaced)
17 HMII, 15 Abiomed, 1 Thoratec
1 patient had a HM II and Abiomed
Additional Device Implants:2012: 19 - 2 TandemHearts, 17 Impella ( 10 – 5.0, 7 – 2.5)2011: 7 Impella and 3 TandemHeart 2010: 4 Impella
We had a total of 52 patients and 57 devices for 2012
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• A VAD is designed to
circulate the blood in the
pulmonary and/or systemic
circulation when the natural
heart is unable to maintain
normal blood flows and
pressures.
Defining A Ventricular Assist DeviceDefining A Ventricular Assist Device
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• Bridge to Recovery/Decision (BTR/BTD)– Postcardiotomy Shock – Acute MI– Cardiac Disorders such as Viral Myocarditis
• Bridge to Transplant (BTT)– Cardiomyopathies – Failed Cardiac Transplant
• Destination Therapy (DT)– improve quality of life
when not a transplant candidate
Indications for UseIndications for Use
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• Central Nervous System damage
before or during operative procedure
• Body Surface Area (BSA)
< 1.2m² for some assist devices
Contraindications for VADContraindications for VAD
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Not everyone can get a VAD!!Not everyone can get a VAD!!
•Physical and psychosocial evaluation
•Good support group
•BTT requirements
•DT requirements
•Pre-VAD meeting with the VAD team
•Presented to Advance Heart Failure Board for acceptance
Criteria Evaluated Before Getting A VAD
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Does the patient need a
Left, Right, or Biventricular
Assist Device.
Size of the patient.
Short or long term use
needed.
What hospital the
patient is in.
Choosing the appropriate VADChoosing the appropriate VAD
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• Abiomed
• Thoratec – IVAD and PVAD
• HeartMate – XVE and HM II
• HeartWare
Types of VAD’sTypes of VAD’s
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Left, Right, or Biventricular Short term use - months Patient size irrelevant Bridge to Recovery Bridge to Transplant NOT for Destination
Therapy Outlying hospitals can
implant emergently– Patient then transferred to
Methodist by Lifeline
AbiomedAbiomed
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Left, Right, or Biventricular support
Short or long term use Patient size irrelevant Bridge to Recovery Bridge to Transplant NOT for Destination
Therapy
Implantable or Paracorpeal
Thoratec – PVAD or IVADThoratec – PVAD or IVAD
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Thoratec
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Left ventricular assist device only
Long term use
BSA must be >1.2 for HM II and >1.5 for HM XVE Pulsatile or axial flow
Bridge to transplant
Destination therapy
HeartMate XVE and IIHeartMate XVE and II
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HeartMate XVEHeartMate XVE
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HeartMate IIHeartMate II
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Left ventricular assist device only
Long term use BSA must be >1.2 Centrifugal pump Bridge to transplant
Destination therapy
HeartwareHeartware
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HeartWareHeartWare
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Blood Pump Differences
Thoratec/Abiomed
• Pulsatile pump
• Valves allowing unidirectional flow
• Vacuum assist filling
• Asynchronous pulsatile VAD
• Need to start anticoagulation earlier
HeartMate/Heartware
Continuous flow pump
Valveless
Afterload sensitive – retrograde flow
Follows native pulse
Pump output varies over cardiac cycle
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Comparison of Pulsatile and Axial Flow
-10
-5
0
5
10
15
20
25
30
Ou
tflo
w (
L/m
in)
Pump speed = 10,000 RPM
-10
-5
0
5
10
15
20
25
30
Ou
tflo
w (
L/m
in)
(Both have average flow between 4-5 L/min)
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Pump Rotor and Stators
Inflow Bearings
Inflow Stator
Rotor
Outflow Bearings
Outflow Stator
Flow
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HeartMate II
Rotor Magnet Rotor
Bearings
Inlet Stator
Motor WindingOutlet Stator
Blood pump rotor is the only moving part
Rotor spins on blood –lubricated bearings designed for long life
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•Recovery
•Education
•Excursions
•Discharge – home environment
What it takes to get a patient home!What it takes to get a patient home!
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RecoveryRecovery• Hemodynamic stability
• Nitric Oxide or Flolan
• Dobutrex or Milrinone
• Cardiac Tamponade
• Anticoagulation
• Pain management
• Infection
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•Education Process–Driveline Dressing change –Learning the VAD–Alarms and troubleshooting VAD–Handling an emergency–Excursions
What it takes to get a patient home!What it takes to get a patient home!
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Recording VAD settings
Monitoring trends
Assessing preload and afterload
Alarm tests
Dressing change
Monthly assessing VAD equipment
for any problems – i.e.- exposed wires
Daily ChecksDaily Checks
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•Advance Heart Care Clinic has 24/7 on call
•Local ER
•Fire station
•Electric company
•Caregiver/Ambulance/Lifeline transfer if needed
Emergency Resources Emergency Resources
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Emergency Situations
• Assess patient and VAD monitor
• Check connections
• OK to intubate, defibrillate, and give medications
• If need to defibrillate NO disconnection required
• Can DO chest compressions if you cant get pump running
• Close monitoring of fluid status and MAP
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Down the line……Down the line……• Right Heart Failure
• Debilitation
• Cardiac Arrhythmias
• Device Failure
• Co-Morbidities
• Infection
• Hospice/End of Life
• Cost
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A Successful VAD ProgramA Successful VAD Program
• MD’s – Surgeon and Cardiologist
• VAD Coordinator
• Nurse Practitioners
• Social Worker
• Bedside Nurse
• Pharmacist
• Dietician
• Respiratory Therapist
• Physical and Occupational Therapist
• Transplant Coordinators
• Research Nurse’s
• Chaplin
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Survival Rates June 2006-Q4 2012
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IU Health Pagani INTERMACS
*Patient survival post implantKaplan-Meier Survival Analysis
Pagani et. al, JACC, 2009
n=158
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Survival Rates 2011-2012
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n = 60
*Patient survival post implantKaplan-Meier Survival Analysis
Pagani et. al, JACC, 2009
IU Health Pagani INTERMACS
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New York Heart Association
NYHA Class
Symptoms
I No symptoms and no limitation in ordinary physical activity, e.g. shortness of breath when walking, climbing stairs etc
II Mild symptoms (mild shortness of breath and/or angina) and slight limitation during ordinary activity.
III Marked limitation in activity due to symptoms, even during less-than-ordinary activity, e.g. walking short distances (20–100 m).Comfortable only at rest.
IV Severe limitations. Experiences symptoms even while at rest. Mostly bedbound patients.
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Quality of LifeFunctional status six months post-implant
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Benchmark: NYHA Class I & II = 89% at 6 months Pagani et. al, JACC, 2009
Data Source: MCCM
*All patients are Class III or IV before VAD implantation
NYHA Class assessed for every patient at 6 month visit
June 2011 – June 2012, n=25*
Class I 17 patients 68% 92%
Class II 6 patients 24%
Class III 2 patients 8%
Class IV
32 Patients evaluated
25 patients reached 6 months
7 patients NOT Included. 4 deceased, 1 transferred care and 2 transplanted.
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"Advanced Practice Guidelines for HeartMate Destination Therapy." Guidelines 2(2004): 1-38.
American Heart Association (2009). Heart disease and stroke statistics 2009 update at a glance (Our guide to current statistics and the supplement to our heart and stroke facts). Retrieved January
2009 from http://wwwamericanheart.org.
Thoratec Corporation, "Your Guide to Successful LVAS Patient Discharge." HeartMate Left Ventricular Assist System (LVAS) Community Living Manual. 1st Ed. 2004.
United Network For Organ Sharing (2011). Heart transplant statistics for 2011. Retrieved February 2012
http://www.unos.org
Mariell Jessup, M.D., and Susan Brozena, M.D. Heart Failure. N Engl J Med 2003; 348:2007-2018 May 15, 2003
ReferencesReferences
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• www.abiomed.com
• www.thoratec.com
• www.americanheartassociation.org
• www.heartcenteronline.com
• www.optn.org
• www.healthatoz.com
• www.nlm.nih.gov
To Learn More About VAD’sTo Learn More About VAD’s