Stroke Services Quality Report 

Danbury and Norwalk Hospitals

As Thrombectomy-Capable Stroke Centers certified by The Joint Commission, Danbury and Norwalk Hospitals aim to provide the highest quality of stroke care using national standard performance measures.

Quality Report (Fiscal Year 2021)

Performance Measure Danbury Hospital Norwalk Hospital  All Connecticut Hospitals
Venous thrombus embolism (VTE)
Treated to prevent blood clots from forming when confined to bed
 97% 94% 97%
Discharged on anti-thrombotic therapy
Discharged to home on antithrombotic therapy to prevent another ischemic stroke 
100% 100% 100%
Anti-coagulation for atrial fibrillation/flutter
Treated with a blood thinner for an abnormal heart rhythm that could cause blood clots
100% 94% 98%
Thrombolytic therapy
Arrived at the hospital within 2 hours of stroke symptoms and treated with a clot-busting drug within 3 hours of symptoms
100%  86% 94%
Anti-thrombotics by hospital day #2
Treated with an antithrombotic within two days after admission to prevent further ischemic strokes
100%  100% 97%
Discharged on a statin medication
Treated with a cholesterol-lowering drug to reduce ischemic stroke risk
99%  99% 99%
Stroke education
Provided with information about warning signs, stroke risk factors, and the importance of calling 9-1-1
100%  100% 96%
Assessed for rehabilitation
Evaluated by a member of the rehabilitation team to assess need for rehabilitation services
100%  100% 99%
This report shows the percent of stroke patients provided selected treatments at Danbury and Norwalk Hospitals compared to patients at other Connecticut hospitals.

Outcomes Report  (Fiscal Year 2021)

Performance Measure Danbury Hospital  Norwalk Hospital All Connecticut Hospitals

Hemorrhagic transformation after IV alteplase
Ischemic stroke patients who develop significant bleeding in the brain within 36 hours after receiving a clot-busting medication (lower percentage is better)

0%  0% 3%
Hemorrhagic transformation after IA alteplase (tPA) or thrombectomy
Ischemic stroke patients who develop significant bleeding in the brain within 36 hours after undergoing a surgical procedure to remove a blood clot (lower percentage is better)
10%  0% 8%

TICI* reperfusion grade of 2B or higher
Ischemic stroke patients who had meaningful improvement of blood flow to their brain after undergoing a surgical procedure

81% 94%  85%
Arrival to skin puncture (procedure start)
Median time from hospital arrival to the time of skin puncture to access the artery for a St procedure (lower number is better).
126 minutes  108 minutes 104 minutes
The Danbury and Norwalk Hospital stroke programs monitor outcomes for selected ischemic stroke patients who undergo emergency mechanical thrombectomy stroke procedures. From October 2020 through September 2021, both sites performed a combined total of 39 mechanical thrombectomy procedures. This procedure removes a blood clot from a major blood vessel in the brain by using a clot-retrieving catheter. Over 87% of patients treated at both facilities had meaningful improvement of blood flow to their brain.


This information is based on data retrieved from Outcomes Science Get With The Guidelines® data.


*Thrombolysis in cerebral infarction (TICI) scale is a score used to grade brain tissue revascularization.