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Stroke is the 3rd leading cause of morbidity and death in the United States. Systemic, extracranial, and intracranial atherosclerosis has been identified as the major cause of ischemic stroke. Risk factors include hypertension, diabetes, smoking, hyperlipidemia, and a history of cardiovascular disease. Stroke may present with sudden numbness or weakness in the face, arm, or leg, often on one side of the body; confusion; vision problems; severe headache; and difficulty speaking or understanding speech. Symptom severity depends on the location and size of the affected brain area. The prognosis depends on factors such as the timing of treatment, stroke type, and the patient’s overall health. Early intervention can significantly improve outcomes, but some patients may experience long-term disability or complications. Effective management focuses on controlling risk factors through lifestyle changes, pharmacotherapy, and surgical interventions. Rehabilitation plays a key role in recovery, and the extent of recovery can vary widely between individuals. Timely diagnosis is crucial for reducing the impact of strokes, and various diagnostic modalities are employed to assess the extent of vascular compromise. Among these technologies, extracranial Doppler ultrasound is essential for evaluating carotid artery stenosis, a major contributor to ischemic stroke. This noninvasive technique provides critical information on blood flow, enabling early detection and guiding appropriate treatment to prevent stroke. This activity for healthcare professionals is designed to enhance learners' competence in identifying patients with indications for extracranial carotid Doppler ultrasound, as well as its proper performance and the accurate interpretation of its results. Participants gain a broader grasp of this modality's indications, contraindications, and testing protocols alongside the correct way of analyzing salient findings. Greater proficiency equips healthcare practitioners to collaborate within an interprofessional team caring for individuals at risk for cerebrovascular accidents. Objectives: Apply the proper techniques for examining the extracranial carotid arteries using Doppler ultrasonography. Identify the characteristic Doppler ultrasound waveforms of extracranial carotid arteries.

This activity for healthcare professionals is designed to enhance learners' competence in identifying patients with indications for extracranial carotid Doppler ultrasound, as well as its proper performance and the accurate interpretation of its results. Participants gain a broader grasp of this modality's indications, contraindications, and testing protocols alongside the correct way of analyzing salient findings. Greater proficiency equips healthcare practitioners to collaborate within an interprofessional team caring for individuals at risk for cerebrovascular accidents. Objectives: Apply the proper techniques for examining the extracranial carotid arteries using Doppler ultrasonography. Identify the characteristic Doppler ultrasound waveforms of extracranial carotid arteries. Implement the relevant velocity criteria when interpreting the findings of Doppler ultrasonography of the extracranial carotid arteries. Collaborate with the interprofessional team to educate, treat, and monitor patients at risk for stroke to improve patient outcomes. Access free multiple choice questions on this topic.

Over the past few decades, Doppler ultrasound has become a primary modality for extracranial carotid assessment because it is readily available, noninvasive, and relatively inexpensive.[1] The sonographic evaluation of extracranial carotids aids in the screening, diagnosis, and monitoring of atherosclerotic disease, as well as postintervention analysis.[2] The evaluation is crucial since the stroke risk increases with the degree of atherosclerotic narrowing, leading to flow disturbances.[3] Doppler imaging provides a quantitative determination of velocity, which, in combination with grayscale imaging, provides a qualitative and quantitative assessment of plaque and stenosis. This evaluation is of utmost clinical importance for stroke risk stratification, as well as identifying indications for surgical intervention.[4]

Evaluating extracranial arterial atherosclerotic burden for stroke risk stratification has demonstrated improved outcomes. Successful implementation relies on collaboration within an interprofessional team, including primary care providers or internists, midlevel practitioners such as physician assistants and nurse practitioners, interventional radiologists, vascular surgeons, neurologists, and ultrasound technologists. Effective communication among these healthcare professionals is essential for delivering patient-centered care.