Related Experiment Video
Updated: May 20, 2026

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
[Prehospital thrombolysis acute coronary syndrome in patients with acute left bundle branch block]
Insights
Prehospital thrombolytic therapy (TLT) significantly improved 30-day survival rates by fourfold in acute coronary syndrome (ACS) patients with acute left bundle branch block (LBBB). TLT also reduced QRS complex duration in most patients.
Area of Science:
- Cardiology
- Emergency Medicine
- Pharmacology
Context:
- Acute coronary syndrome (ACS) with acute left bundle branch block (LBBB) presents a critical challenge in prehospital care.
- Limited data exists on the efficacy of prehospital thrombolytic therapy (TLT) in this specific patient cohort.
- Early intervention is crucial for improving outcomes in ACS and LBBB patients.
Purpose:
- To evaluate the impact of prehospital thrombolytic therapy (TLT) on 30-day survival in patients with acute coronary syndrome (ACS) and acute left bundle branch block (LBBB).
- To assess the effect of TLT on electrocardiographic parameters, specifically QRS complex duration, in this patient group.
Summary:
- A study analyzed 30-day survival in 18 patients receiving prehospital TLT for ACS with LBBB.
- Survival rates were four times higher in patients treated with TLT compared to those without TLT.
- TLT resulted in a reduction of the QRS complex in 66% of treated patients.
Impact:
- Prehospital TLT demonstrates a significant survival benefit for ACS patients with LBBB.
- TLT may serve as a valuable therapeutic strategy to improve outcomes in the prehospital setting.
- The findings suggest that TLT can positively influence myocardial conduction, indicated by QRS complex reduction.
Abstract:
Analyzed 30-days survival in 18 patients after a system of dark prehospital thrombolysis performed for an acute coronary syndrome (ACS) with acute left bundle branch block (LBBB). Survival after thrombolytic therapy (TLT) was 4 times higher than in patients with acute coronary syndrome and acute blockade LBBB without TLT. It is concluded that thrombolytic therapy leads to a reduction of the QRS complex in 66% of patients.
Related Concept Videos
Acute Coronary Syndrome IV: Interprofessional Care
Acute Coronary Syndrome I: Introduction
Acute Coronary Syndrome III: Diagnostic Studies
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Acute Coronary Syndrome V: Nursing Management
Coronary Artery Disease V: Interprofessional Care

