Supplementary Table 1 Survey Questionnaire
Domain Name Question Stem Answer Choices
Demographics
Please specify your occupation. Anesthesiologist Intervention radiologist Stroke Neurologist Neurosurgeon Emergency Physician Where is your centre/organization/society located?Place an "X" beside the option applying to you.
Africa - state name of your city and country Asia - state name of your city and country Oceania - state name of your city and country
North America – state name of your city and country:
South America - state name of your city and country Other - state name of your city and country
Prefer not to say How many confirmed cases of COVID-19 have been reported
in your city by May 28, 2020?
0-500 501-5000 5001-10000 10001 and more In view of COVID-19 pandemic, what is the current trend of
total number of stroke cases at your hospital?
Decreased substantially Decreased slightly Unchanged Increased slightly Increased substantially I do not know
In view of COVID-19 pandemic, what is the current trend of endovascular thrombectomy cases in your hospital?
Decreased substantially Decreased slightly Unchanged Increased slightly Increased substantially I do not know
Awareness
Is your center aware of implications of COVID-19 and endovascular management of stroke?Not at all
Somewhat aware Fully aware Have you modified the protocol for managing such cases? No
Yes
Testing and Transportation
Does your center perform COVID-19 testing for stroke patients who undergo mechanical thrombectomy?
No
Yes, before the procedure Yes, after the procedure Do you see any changes in the transport time of stroke
patients from home to hospital during COVID-19 pandemic?
Decreased Unchanged Increased
Types of Stroke in
ER and Stroke team (COVID-19)
Do you have a dedicated stroke team at your center? No Yes
Who is responsible for patient’s monitoring during mechanical thrombectomy?
Nurse Technician
Anesthesiologist for all the cases
Anesthesiologist only for General Anesthetic Cases Monitoring is not required
Which types of stroke are being admitted at your center during the COVID-19 pandemic?
Ischemic Hemorrhagic Both equally I do not know
Safety And
Neurointervention environment
Do you wear full personal protective equipment PPE (based on your institutional/national guidelines) for EVT cases?
Full PPE not available
Full PPE for all cases irrespective of COVID-19 status and type of anesthetics
Full PPE only for known COVID-19 or symptomatic but irrespective of type of anesthetics
Full PPE only for known COVID-19 or symptomatic but general anesthesia (GA) cases or if converting to GA
Have all your team members practiced donning and doffing simulation or practice session in view of COVID-19
preparedness?
No Yes Optional Which type of operative room is available at your
neurointerventional suite?
Negative pressure Positive pressure
Both negative and positive rooms, separately Ambient
I do not know
Anesthetic choices,
Airway management options and sites
Where do you intubate the patient who require general anesthesia for mechanical thrombectomy during the COVID- 19 pandemic?
Emergency room
Special room outside of neurointerventional Inside the neurointerventional operating room ICU
What is the preferred method of intubation? Direct laryngoscopy Video laryngoscopy
Laryngeal Mask Airway (LMA) Other (please specify)
How has your anesthetic management in patients undergoing endovascular thrombectomy changed during the COVID-19 pandemic at your center?
No change Less cases of GA More cases of GA All cases in GA
All cases in Local Anesthetic What is the preferred method of oxygenation during sedation
(MAC) in these patients at your center?
Nasal prong Breathing mask
Breathing mask with special filter We do not use any
Other (please specify) Do you monitor end tidal carbon dioxide (ETCO2) routinely
during sedation in the setting of the COVID-19 pandemic?
No Yes
Perioperative
complications in relation to COVID- 19
In regards to stroke management, please check all of the following that have increased during the COVID-19 pandemic.
Door to CT time
Door to needle time (Thrombolytic Therapy)
Door to puncture time (Endovascular Thrombectomy) Time for anesthesia readiness
Time to recanalization I do not know
Do you observe perioperative complications in patients undergoing endovascular thrombectomy during the COVID- 19 pandemic? Multiple options can be selected.
Conversion of GA during procedure
Unmanageable movement due to coughing/sneezing Nausea/vomiting
Contamination Hypotension
Other (please specify) What is your set target for systolic BP during EVT under
GA?
No set target
Less than 140mmHg 140-180mmHg More than 180mmHg
Cleaning and
sterilization of equipments
Has your cleaning and sterilization process been modified for equipments and neuroradiological operating suites during COVID-19 pandemic at your center?
No Yes
I do not know How long do you wait for the next case, if the previous
patient is COVID-19 positive or suspect?
Less than 30 minutes 30-45 minutes 46 minutes to 1 hour More than 1 hour
Disposition
Where do you extubate the COVID-19 suspect or positivepatients after mechanical thrombectomy?
ICU
Intervention suite
Special room other than ICU Other (please specify) For local anesthesia or Monitored Anesthesia Case, do you
ask the patient to wear a surgical mask for the entire case?
No Yes