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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Endovascular Treatment for Acute Ischemic Stroke Patients over 80 Years of Age
Kihwan Hwang1, Gyojun Hwang1, O-Ki Kwon1
1Department of Neurosurgery, Regional Caridocerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea.
Insights
Endovascular treatment (EVT) improves functional outcomes for acute ischemic stroke patients over 80. EVT reduces hospital infections but increases symptomatic hemorrhage risk without raising mortality.
Area of Science:
- Neurology
- Interventional Cardiology
- Geriatric Medicine
Background:
- Acute ischemic stroke poses significant risks, particularly in elderly populations (over 80).
- Endovascular treatment (EVT) is a potential intervention, but its efficacy and safety in octogenarians require specific evaluation.
- Assessing outcomes in this demographic is crucial for optimizing stroke care guidelines.
Purpose of the Study:
- To evaluate the effectiveness and safety of endovascular treatment (EVT) in patients aged 80 and above with acute ischemic stroke.
- To compare functional outcomes, symptomatic hemorrhage rates, and in-hospital morbidity and mortality between EVT and non-EVT groups in this elderly cohort.
- To determine if EVT offers a net benefit for octogenarian stroke patients.
Main Methods:
- Retrospective analysis of 156 acute stroke patients over 80 years old.
- Comparison of outcomes between 56 patients who underwent EVT and 100 who did not.
- Statistical adjustments for age, time from onset, NIH Stroke Scale, and pre-stroke mRS.
Main Results:
- EVT significantly improved good functional outcomes at 3 and 12 months (35.7% vs. 11.0% and 14.0%, respectively).
- EVT group had lower rates of hospital-acquired pneumonia and urinary tract infections.
- EVT group experienced more symptomatic hemorrhages (10.7% vs. 2.0%), but in-hospital mortality rates were similar.
Conclusions:
- Endovascular treatment enhances functional recovery in acute ischemic stroke patients over 80.
- EVT reduces the incidence of hospital-acquired infections in this population.
- While EVT increases symptomatic hemorrhage risk, it does not elevate in-hospital mortality, suggesting a favorable risk-benefit profile for selected elderly patients.
Objective:
We evaluated the effect of endovascular treatment (EVT) for acute ischemic stroke in patients over 80 years of age.
Materials And Methods:
The records of 156 acute stroke patients aged over 80 years who were considered as candidates for EVT were analyzed. Fifty-six patients (35.9%, EVT group) underwent EVT and 100 patients (64.1%, non-EVT group) did not. Outcomes, in terms of functional outcomes and rates of symptomatic hemorrhage, in-hospital morbidity and mortality, were compared between groups. Each comparison was adjusted for age, time from onset, initial National Institute of Health Stroke Scale, and pre-stroke modified Rankin Scale (mRS).
Results:
More patients in the EVT group achieved good outcomes (mRS score of 0-2) at 3 months (35.7% vs. 11.0%, adjusted odds ratio [OR] 4.779 [95% confidence interval 1.972-11.579], p = 0.001) and 12 months (35.7% vs. 14.0%, adjusted OR 3.705 [1.574-8.722], p = 0.003) after stroke. During admission, rates of hospital-acquired infection including pneumonia (12.5% vs. 29.0%, adjusted OR 0.262 [0.098-0.703], p = 0.008) and urinary tract infection (16.0% vs. 34.0%, adjusted OR 0.256 [0.099-0.657], p = 0.005) were significantly lower in the EVT group. More symptomatic hemorrhages (10.7% vs. 2.0%, adjusted OR 6.859 [1.139-41.317], p = 0.036) occurred in the EVT group, but no significant difference was observed in in-hospital mortality rate (12.5% vs. 8.0%, adjusted OR 1.380 [0.408-4.664], p = 0.604).
Conclusion:
EVT improved functional outcome and reduced the risk of hospital-acquired infections in acute stroke patients over 80 years of age without increasing the risk of in-hospital mortality, although symptomatic hemorrhage occurred more frequently after EVT.
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