Stroke Systems of Care - University of Pittsburgh … Systems of Care Ashutosh P. Jadhav, MD PhD...
Transcript of Stroke Systems of Care - University of Pittsburgh … Systems of Care Ashutosh P. Jadhav, MD PhD...
Stroke Systems of Care
Ashutosh P. Jadhav, MD PhD
Assistant Professor, Neurology and Neurological Surgery
Center for Neuro-endovascular Therapy
UPMC Stroke Institute Pittsburgh, PA
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
1. Emergency medical services (EMS)
2. Hospital care
3. Discharge
4. Rehabilitation
- Reducing stroke deaths by 2-3% per years
20,000 fewer deaths in the US alone
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
Public awareness campaigns:
- Vulnerable populations (female, minority, low
socio-economic status)
- Atypical symptoms or language impairment
Detection to Dispatch
Ann Neurol 2008;63:466–472
Detection to Dispatch
Ann Neurol 2008;63:466–472
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
1. Increased patient awareness
2. Direct in-field triage – modified stroke scale
3. Remote assessment (telemedicine)
4. Mobile stroke unit – portable CT scanner
5. Thrombolysis screen
6. Neuroprotection
safe feasible
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
Improving treatments now available for both
hemorrhagic and ischemic stroke but:
1. Treatments are often ultra time sensitive
2. Need advanced medical center multi-disciplinary
infrastructure
First medical contact to
treatment
Sx
Onset
ASRH
PSC
ECC
CSC
Balance:
- Inefficient transfer: long
delays lead to less likelihood
to receive advanced therapy
or less likely to benefit
- Futile transfer: resource
utilization (direct financial
costs, indirect opportunity
costs)
Overall Workflow for
Telemedicine Consults in 2014
Time interval N Min (med)
Onset to ED 95 80
ED to CT 99 18
Telemedicine to tpa (68% received) 60 32
Tpa to Depart 22 44
Door in to Door out 31 118
Door in to Hub arrival 100 161
Jadhav et al (unpublished)
Suspected stroke patient is traiged to ED
patient room
After ED physician evaluation, patient is
transported to CT scanner
CT scan is obtained and if no blood is noted,
ED physician contacts stroke specialist via
operator
Stroke specialist obtains history from ED
physician and reviews CT head. Decision is
made to initiate telemedicine consult.
Telemedicine connection is established
Video consult: history/review labs
Video consult: NIHSS
Decision to administer IV tpa is made
Pharmacy activated
Decision to transfer patient is made
Transport activated
Transport arrives bedside
Suspected stroke patient is
triaged to CT scanner
ED physician contacts stroke
specialist via operator
CT scan is reviewed in real
time and decision is made to
proceed with telemed consult .
Video consult: history/review
labs
Telemedicine connection is
established.
Decision to administer IV tpa is
made
If NIHSS is disabling:
pharmacy activated. If NIHSS
>= 8: transport activated
Transport arrives IV tpa is mixed and initiated.
Video consult: NIHSS
IV tpa is mixed and initiated.
Patient departs referral facility
Patient departs referral facility
Restructuring Workflow Current: Serial Proposed: Parallel
Clinical Vignette #1 39 year old woman with a history of HTN, tobacco use and prior DVT
developed sudden onset of right gaze preference and left side weakness.
EMS arrives on scene and sends pre-hospital page while en route.
What next?
Clear scanner?
Notify pharmacy?
Activate Neuro-cath lab.
Clinical Vignette #1 On-call stroke attending (Jovin) activates in-house stroke team and on-call
neuro-cath team based on page.
In-house stroke attending (Aghaebrahim) meets patient in ED and takes
patients directly to scanner. Neuro-cath lab has been activated (Ducruet).
CT head reveals no hemorrhage but CTA head/neck reveals right ICA
terminus occlusion. NIHSS 10.
What next?
IV tpa and wait for improvement?
IV tpa en route to angio-suite?
Skip IV tpa, straight to angio-suite?
Last seen well ED arrival CT head Angio suite IV tpa Access
Process
Symptom-CT: 103 minutes
Picture-Puncture: 56 minutes
Puncture-Treatment: 22 minutes
Recanalization
102 mins 1 min 33 mins 17 mins 6 mins 22 mins
Discharged home
day 4 with NIHSS 2
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
Overall goal:
- minimize first medical contact to final reperfusion time
Requires:
- Performance measurement (‘Hawthorne’ effect)
- Feedback
- Quality initiatives
Good outcomes are time
dependent
Khatri et al, Neurology 2009 Marler et al, Neurology 2000
IV tpa IA therapy
Interdisciplinary care of stroke
Detection
Dispatch
Delivery
Door
Data
Decision
Drug
Patient awareness
EMS
Prehospital notification
ED triage
Evaluation: NIHSS, labs, CT
Best treatment
Door to needle time < 60 min
Strategies to reduce DTN - advance hospital notification by EMS
- rapid triage protocol and stroke team notification
- single-call activation system
- access to stroke expertise 24×7
- rapid acquisition and interpretation of brain imaging
- rapid laboratory testing (including point-of-care testing if indicated)
- tPA administration protocols
- mix tPA medication ahead of time
- rapid access to intravenous tPA
- team-based approach
- prompt data feedback
- rapid triage protocol with stroke team notification 8.1 minutes
- single-call activation system all the time 4.3 minutes
- tPA being stored in ED 3.5 minutes
- 1.3 minutes could be saved for each strategy implemented
Strategies to reduce DTN
Additional strategies - Direct transfer from transport to scanner
- Minimize additional labs (INR, platelets may be deferred in many patients)
- Real time interpretation of CT scan
- Consent (can be deferred if patient not competent or LAR not reachable)
Door to CT time
Direct transfer to angiosuite - Jan 2013 to July 2015: review of 379 patients undergoing endovascular
therapy
- 8.9% were triage directly from helipad to the angio-suite
- Mean door to puncture time: 21.1 minutes
Kenmuir et al (submitted)
Stroke Emergency Room? - Fast track suspected stroke patients to a specialized ED with direct access
to: specialized neuro nursing, CT scanner, IV tpa and neuro-cath lab
Quality of Performance Metrics
In-house stroke
28 837 patients with community-onset stroke vs 973 in-house
strokes (2003-2012)
1. in-hospital stroke had more stroke risk factors and comorbid
illness, greater severity of their stroke, and poorer
outcomes, particularly in terms of length of stay and
disability
2. Symptoms onset to neuroimaging: 4.5 hours for in-hospital
stroke, compared with 1.2 hours for community-onset stroke
3. median time of IV tpa delivery was longer, at 2 vs 1.2 hours
from “door or symptom recognition”
Clinical Vignette #2 59 year old man who presented with NSTEMI and heart failure in the setting
of RCA occlusion requiring CABG and valve repair.
After extubation: NIHSS 16 (1 LOCC, 2 VF, 2 gaze, 4 LLE, 4 LUE, 1
sensation, 2 neglect).
What next?
Tpa?
Additional imaging?
Thrombectomy?
Clinical Vignette #2 CT head obtained on angio table: No hemorrhage
DSA reveals right M1 occlusion and favorable collaterals.
Clinical Vignette #2 Last seen well Symptoms Angio suite CT head Access
9.5 hours 50 minutes 20 minutes 5 minutes 30 minutes
Recanalization
Dual
energy
CT
Process
Symptom-CT: 70 minutes
Picture-Puncture: 5 minutes
Puncture-Treatment: 30 minutes
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
1. Establish guidelines
2. Address treatment gap: Local and national stroke quality
improvement program to address this treatment gap.
Risk factors of mortality and morbidity
- Non-modifiable (stroke severity, age, pre-morbid status)
- Modifiable
Stroke size and complications
Streib et al (submitted)
Complications after stroke
Kumar et al (Lancet Neurology, 2010)
Schwamm et al (Stroke, 2009)
Stroke chain of survival
Early
Recognition
EMS
evaluation Triage
Reperfusion
therapy
Early
advanced
care
Aggressive
rehab
Enhancing recovery?
Rehab versus SNF
Enhancing recovery
1:1 randomization of
patients 5-10 days post
stroke (NIHSS < 20) to
20 mg fluoxetine vs
placebo
Disposition and outcomes
Stroke size and cost: each additional 1cc of infarcted brain tissue increased hospitalization cost by $122.35.
Streib et al (submitted)
Small Final Infarct Volume
Early detection
Good collaterals
- Permissive hypertension
Minimize core expansion
- neuroprotection
Patient selection
- Small core on presentation
Short time to recanalization
High quality recanalization
- TICI 2b/3
Good outcome
Opitimize Rehab
- Young age
- IRF vs. SNF
- neurostimulant
Achieving good outcomes after
ischemic stroke
Minimize post stroke complications
- Hemorrhagic transformation
- DVT
- Infection
Summary
1. Multiple steps are necessary to optimize good outcomes
2. Failure at any particular step can impact eventual outcome
3. Emergency services are increasingly adopting cardiac and
trauma model
4. In-hospital process should tailored for various types of
presentation
- Direct front door admission
- Transfer
- In-house stroke
5. Tracking outcomes and quality metrics with feedback and
quality initiatives is necessary to improve current process
6. Minimizing post stroke complications and maximizing early
rehabilitation are critical steps.