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Updated: Jun 19, 2026

Non-Intubated Video-Assisted Thoracoscopic Surgery
Published on: May 26, 2023
Dexmedetomidine as sole sedative during percutaneous carotid artery stenting in a patient with severe chronic
1Department of General Anesthesiology, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA. cataj@ccf.org
Insights
Carotid artery stenting for severe carotid stenosis in patients with comorbidities can be safely performed using dexmedetomidine for monitored anesthesia care. This sedative agent offers benefits without significant respiratory depression, demonstrating its utility in high-risk patients.
Area of Science:
- Cardiology
- Anesthesiology
- Vascular Surgery
Background:
- Carotid artery stenting (CAS) is a key intervention for atherosclerotic occlusive disease.
- Patients with severe comorbidities often undergo CAS.
- Anesthesia options include general, local, or sedation with local anesthesia.
Observation:
- Dexmedetomidine, a selective alpha-2 adrenergic agonist, provides sedation and analgesia with minimal respiratory compromise.
- A case study details CAS in a patient with severe chronic obstructive pulmonary disease (COPD) and severe carotid stenosis.
- Monitored anesthesia care (MAC) utilizing dexmedetomidine was employed.
Findings:
- The procedure was successfully completed under MAC with dexmedetomidine.
- A single episode of bradycardia and hypotension occurred.
- This event was effectively managed with glycopyrrolate.
Implications:
- Dexmedetomidine is a viable anesthetic option for high-risk patients undergoing carotid stenting.
- This approach may improve patient selection and procedural safety in complex cases.
- Further research could explore dexmedetomidine's role in other percutaneous interventions for comorbid patients.
Abstract:
Carotid artery ballooning and stenting is a percutaneous interventional therapy for the treatment of patients with atherosclerotic occlusive disease of the carotid artery. Patients with severe comorbidities are usually considered candidates for this procedure. The carotid artery stenting can be done under either general or strict local anesthesia, or alternatively by using a combination of intravenous sedation and local anesthesia. Dexmedetomidine is a selective alpha-adrenergic agent that has both sedative and analgesic properties but lacks a depressive effect on respiratory drive. This article describes the case of a patient with severe chronic obstructive pulmonary disease and severe carotid stenosis, who underwent carotid stenting under monitored anesthesia care with dexmedetomidine. Only one episode of bradycardia and hypotension was observed, and this was successfully treated with glycopyrrolate.
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