In-Lab Upfront Use of Tirofiban May Reduce the Occurrence of No-Reflow During Primary Percutaneous Coronary

Igor Matos Lago1, Gustavo Caires Novaes1, André Vannucchi Badran1

  • 1Divisão de Cardiologia, Departamento de Clínica Médica, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto - Universidade de São Paulo, São Paulo, SP - Brazil.

Insights

In ST-elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PPCI), upfront tirofiban showed a trend toward reducing no-reflow (NR). This pilot study suggests tirofiban may help prevent NR in STEMI patients treated with PPCI.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Pharmacology

Background:

  • Myocardial reperfusion is not always achieved after successful culprit coronary artery opening during primary percutaneous coronary intervention (PPCI).
  • Glycoprotein IIb/IIIa inhibitors are used to treat no-reflow (NR), but their preventive role is not established.

Purpose of the Study:

  • To evaluate the effect of in-laboratory tirofiban administration on the incidence of NR.
  • To assess NR in ST-elevation myocardial infarction (STEMI) patients treated with PPCI.

Main Methods:

  • A double-blind study randomized STEMI patients undergoing PPCI to receive either tirofiban (24 patients) or placebo (34 patients).
  • Angiographic and electrocardiographic methods were used to assess NR.
  • End-points included TIMI epicardial flow grade, myocardial blush grade (MBG), and ST-elevation resolution (<70% at 90 min and 24h).

Main Results:

  • No significant difference in TIMI flow <3 between tirofiban (25%) and placebo (35.3%) groups.
  • MBG ≤2 occurred in 11.7% of placebo patients, none in the tirofiban group (p=0.13).
  • Severe NR (ST-elevation ≤30%) was significantly lower in the tirofiban group at 90 min (0% vs 26.5%, p=0.01) and showed a trend at 24h (4.2% vs 23.5%, p=0.06).

Conclusions:

  • This pilot study indicates a trend towards NR reduction with upfront in-laboratory tirofiban in STEMI patients treated with PPCI.
  • The findings support further large-scale studies to confirm the efficacy of tirofiban in preventing NR.
Abstract

Related Concept Videos

Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
433
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
2.2K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
1.4K