B- mode ultrasound guided- extracorporeal pulsed low- level focused dual frequency ultrasound thrombolytic therapy of embolic artery accompanied by tissue plasminogen activator (TPA) - loaded PLGA microspheres administration

2021 ◽  
Vol 331 ◽  
pp. e263
Author(s):  
H. Mehrad ◽  
A. Foletti
2020 ◽  
Vol Volume 14 ◽  
pp. 257-263 ◽  
Author(s):  
Yi-Sin Wong ◽  
Sheng-Feng Sung ◽  
Chi-Shun Wu ◽  
Yung-Chu Hsu ◽  
Yu-Hsiang Su ◽  
...  

Blood ◽  
1988 ◽  
Vol 72 (2) ◽  
pp. 616-620 ◽  
Author(s):  
J Owen ◽  
KD Friedman ◽  
BA Grossman ◽  
C Wilkins ◽  
AD Berke ◽  
...  

Abstract We have determined the plasma level of fibrinopeptide A as a specific index of thrombin activity during the infusion of a thrombolytic agent in patients with acute myocardial infarction. Peripheral venous plasma levels of fibrinopeptide A increased following the initiation of thrombolytic therapy from 2.7 nmol/L to a peak of 13.0 nmol/L at 30 minutes with streptokinase and from 1.1 nmol/L to a peak of 10.7 nmol/L at 90 minutes with tissue plasminogen activator. The amount of fibrinogen converted to fibrin I was determined by integration of the plasma level of fibrinopeptide A over time. The amount of fibrin I formed over the five-hour period from the start of drug infusion was approximately 10 mg/dL in response to either streptokinase or recombinant tissue plasminogen activator. We conclude that activation of coagulation occurs in response to thrombolytic therapy despite heparin administration. This thrombin action, though transient, would be sufficient to cause rethrombosis if localized and incompletely opposed by fibrinolytic activity.


2019 ◽  
Vol 5 (2) ◽  
pp. 47-50
Author(s):  
Vahid Abbasi ◽  
Abolfazl Atalu ◽  
Afshan Sharghi ◽  
Fatemeh Taghvatalab

Objective: Currently, treating ischemic stroke by intravenous thrombolytic therapy has acceptable results in patients with stroke. This study aimed to evaluate the three months prognosis of patients treated with recombinant tissue plasminogen activator (rt-PA). Methods: This cross-sectional prospective study was conducted on 30 patients with cerebral ischemic stroke with the National Institutes of Health Stroke Scale (NIHSS) >5. Data such as demographic information, signs and symptoms, medical history, risk factors, focused neurological examination, and the NIHSS were collected for all patients. Then, all patients received 0.9 mg/kg of rt-PA as intravenous bolus doses and intravenous infusion under close monitoring in the emergency department. All patients were checked for necessary outcomes and also disability at the admission time, 7 days later and after three months all patients were checked again. All collected data were analyzed by appropriate tests using SPSS version 22. Results: Of all patients, 63.3% were males and 36.7% were females. The mean age of the patients was 62.37 ± 12.62 years with a range of 40-91 years. The mean of NIHSS was 12.46 ± 4.28 at admission time, in day seven it was 8.06 ± 3.72 and in month three after treatment it was 3.62 ± 2.31. There was a significant relationship between age, place of residence and NIHSS. Thirty percent of patients had NIHSS more than 15 at admission time and after 7 days this rate reached to 10% and three months later it declined to 6.7%. These differences were statistically significant. Conclusion: Intravenous thrombolytic therapy is associated with proper short term results in most patients with ischemic stroke.


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