Related Experiment Video
Updated: May 14, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Drug treatment of acute ischemic stroke
Sameer Bansal1, Kiranpal S Sangha, Pooja Khatri
1Department of Neurology, University of Cincinnati, College of Medicine, Cincinnati, OH 45267, USA.
Insights
Acute ischemic stroke (AIS) treatment involves alteplase (recombinant tissue plasminogen activator) to dissolve clots. While the time window is short, new trials suggest extended treatment may benefit select AIS patients.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Emergency Medicine
Background:
- Acute ischemic stroke (AIS) is a major cause of death and disability in the USA.
- AIS results from blood vessel obstruction, leading to irreversible brain damage.
- Current drug treatment relies on intravenous alteplase (rtPA) for thrombolysis.
Purpose of the Study:
- To review the current drug treatment strategies for acute ischemic stroke.
- To discuss the efficacy and limitations of alteplase (rtPA) administration.
- To highlight the importance of timely intervention and supportive care in AIS management.
Main Methods:
- Literature review of current AIS treatment guidelines and clinical trials.
- Analysis of the mechanism of action and therapeutic window of alteplase.
- Evaluation of supportive interventions and contraindications for acute stroke care.
Main Results:
- Alteplase (rtPA) promotes clot lysis by activating plasminogen to plasmin.
- The therapeutic time window for alteplase is typically 3-4.5 hours post-symptom onset.
- Supportive care includes managing blood glucose, body temperature, and severe hypertension.
- Anticoagulation and urgent antiplatelet therapy have limited acute benefits and carry risks.
Conclusions:
- Alteplase remains the primary drug therapy for eligible AIS patients within the established time window.
- Many AIS patients do not receive thrombolytic therapy due to delayed presentation.
- Further research and clinical trials are crucial for developing new acute interventions for AIS.
Abstract:
Acute ischemic stroke (AIS) is the fourth leading cause of death and the leading cause of adult disability in the USA. AIS most commonly occurs when a blood vessel is obstructed leading to irreversible brain injury and subsequent focal neurologic deficits. Drug treatment of AIS involves intravenous thrombolysis with alteplase (recombinant tissue plasminogen activator [rtPA]). Intravenous alteplase promotes thrombolysis by hydrolyzing plasminogen to form the proteolytic enzyme plasmin. Plasmin targets the blood clot with limited systemic thrombolytic effects. Alteplase must be administered within a short time window to appropriate patients to optimize its therapeutic efficacy. Recent trials have shown this time window may be extended from 3 to 4.5 hours in select patients. Other acute supportive interventions for AIS include maintaining normoglycemia, euthermia and treating severe hypertension. Urgent anticoagulation for AIS has generally not shown benefits that exceed the hemorrhage risks in the acute setting. Urgent antiplatelet use for AIS has limited benefits and should only promptly be initiated if alteplase was not administered, or after 24 hours if alteplase was administered. The majority of AIS patients do not receive thrombolytic therapy due to late arrival to emergency departments and currently there is a paucity of acute interventions for them. Ongoing clinical trials may lead to further medical breakthroughs to limit the damage inflicted by this devastating disease.
Related Concept Videos
Acute Coronary Syndrome IV: Interprofessional Care
Ischemic Stroke l: Introduction
Ischemic Stroke ll: Pathophysiology
Transient Ischemic Attack l: Introduction
Venous Thrombosis III: Interprofessional Care
Alzheimer's Disease: Treatment
