Cerebral Blood Flow Evaluation With Trancranial Doppler After Interscalene Nerve Block

Not Recruiting

Trial ID: NCT04642612


The purpose of this study is to assess cerebral blood flow velocity (CBFV) following regional anesthesia for shoulder surgery. The results of this study will help to further understand the physiologic effect of the interscalene nerve block on cerebral blood flow.

Official Title

Cerebral Blood Flow Evaluation With Trancranial Doppler After Unilateral Interscalene Nerve Block: Observational Prospective Study

Stanford Investigator(s)

Anna Maria Bombardieri

Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine Masters Student in Epidemiology and Clinical Research, admitted Autumn 2022


Inclusion Criteria:

   - Patients undergoing orthopedic surgery and with an indication for preoperative
   insertion of interscalene nerve block

   - 18-85 years old

   - Give consent to participate in study

Exclusion Criteria:

   - Cannot give consent

   - Patients who are clinically unstable or require urgent/emergent intervention


device: TCD Measurement

Not Recruiting

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Anna Maria Bombardieri, MD, PhD