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NCT Number: NCT07001267

Prospective Randomized Observer Blinded Single Center Study Comparing 90-day Functional Outcome in Patients Who Received Intravenous Propofol Infusion Versus Inhalational Sevoflurane for General Anesthesia During Mechanical Thrombectomy in Patients Who Suffered From Acute Ischemic Stroke

This study is being done to compare outcomes after surgery for individuals who receive anesthesia through by inhaling medication and individuals who receive anesthesia intravenously by needle when experiencing treatment for their stroke. Currently very little is known about the outcomes for patients when comparing these two techniques of providing anesthesia during surgery. This study will provide information regarding outcomes that will help health care providers decide which technique will be better for patients

Recruiting

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Key information

Conditions

Acute Ischemic Stroke Patients

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Kansas Medical Center

Kansas City, Kansas, 66160, United States

Location status: Recruiting

Location contact

Arun George, MD

CONTACT

[email protected]

913-588-6670

About this study

According to the National Center for Health Statistics, stroke is a leading cause of disability and in 2021 the number five cause of death in the United States1. Endovascular thrombectomy for patients experiencing acute ischemic stroke from the occlusion of a larger cerebral vessel has become a mainstay of treatment.2 Patients undergoing thrombectomy have significantly reduced disability when compared to patients who do not receive this therapy. Several studies have compared outcomes of patients receiving local anesthesia only or sedation versus general anesthesia during endovascular thrombectomy treatment.3,4 While questions remain, current consensus is that when these procedures are done on patients under general anesthesia, there are higher rates of recanalization (opening of the occluded blood vessel) and improved functional recovery. Currently, less is known about the impact of the general anesthesia technique (inhalation vs. intravenous) on disability and functional outcomes in stroke patients.

Aim: The aim of this study is to compare functional outcomes and disability in patients undergoing endovascular thrombectomy for acute ischemic stroke under general anesthesia using a volatile inhalational versus total intravenous anesthesia (TIVA) technique. Hypothesis: We hypothesize that patients receiving total intravenous anesthesia will have better functional outcomes and less disability compared to those receiving volatile inhalational anesthesia as measured by the 90 day modified Rankin score and compared in both groups.

Background and Significance

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • >18 years Acute ischemic stroke requiring endovascular treatment.

Exclusion criteria

  • <18 years
  • Pregnant patients
  • Patients with malignant hyperthermia
  • Allergies or any contraindications to either inhalational or intravenous agents
  • Patients already on intravenous anesthetic infusions
  • Prisoners
  • Students and employees

Treatment and study plan

Anesthesia drugs during the surgery

Procedure

During treatment for acute ischemic stroke, patients will be given either inhalation or intravenous anesthesia.

Primary outcomes

  1. Functional Independence at 90 days

    Time frame: From enrollment to 90 days after treatment

    The primary end point is functional independence at 90 days evaluated with the modified Rankin Scale (mRS). We plan to compare the functional recovery in 90 days in patients undergoing inhalational versus intravenous general anesthesia during mechanical thrombectomy using the modified Rankin score (mRS) in patients who suffered an acute ischemic stroke.

    (The mRS assesses a patient's functional independence or dependence after a stroke. Scores range from 0 (no symptoms) to 6 (death), with 0-2 indicating functional independence and 3-5 indicating dependence. A separate category of 6 is often added for patients who have died)

Secondary outcomes

  1. Comparison of National Institutes of Health Stroke Scale (NIHSS) score

    Time frame: From enrollment to 90 days after treatment

    Comparison of National Institutes of Health Stroke Scale (NIHSS) score at presentation and at 90 days between study groups.

  2. Thrombolysis in Cerebral Infarction (TICI) score

    Time frame: From enrollment to 90 days after treatment

    Thrombolysis in Cerebral Infarction (TICI) score comparison between study groups

Study contacts

Contact information is provided by the study sponsor or research team.

Arun George, MD

CONTACT

[email protected]

913-588-6670

Sponsors and collaborators

Lead sponsor

University of Kansas Medical Center

Other

Registry information

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Jun 3, 2025
Registry last updated
Mar 12, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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