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Background: Coronary interventions, including percutaneous coronary intervention (PCI), have significantly improved management of coronary artery disease by restoration of coronary blood flow to myocardium. However, despite of so many advancements in PCI procedural techniques, there is still a significant and challenging complication known as the "no-reflow" phenomenon exists which worst effect the PPCI outcome.

Methods: It was Cross sectional study conducted at Department of Cardiology, Lady Reading Hospital Peshawar.

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Studies assessing the treatment of refractory no-reflow in patients with ST-elevation myocardial infarction (STEMI) are limited to clinical cases and pilot studies. This study aimed to evaluate the efficacy and safety of intracoronary adrenaline administration in such patients. Ninety consecutive patients with refractory coronary no-reflow during percutaneous coronary intervention (PCI) were prospectively included after the initial failure of conventional treatment.

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The no-reflow phenomenon is defined as the failure to restore coronary flow demonstrated by the reduced or missing flow in angiography despite the patent artery. There are pharmacological strategies proposed and studied to manage the no-reflow phenomenon. The medication groups used are purine nucleoside (adenosine), calcium channel blockers (verapamil, nicardipine), beta 2 receptor agonists (adrenaline, nitroprusside), fibrinolytic agents (streptokinase, tissue plasminogen activators), glycoprotein IIb/IIIa inhibitors (abciximab, tirofiban).

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Background: no-reflow can complicate up to 25% of pPCI and is associated with significant morbidity and mortality. We aimed to compare the outcomes of intracoronary epinephrine and verapamil with intracoronary adenosine in the treatment of no-reflow after primary percutaneous coronary intervention (pPCI).

Methods: 108 STEMI patients had no-reflow during pPCI were assigned into four groups.

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Background: Currently, no pharmacological or device-based intervention has been fully proven to reverse the no-reflow phenomenon.

Objectives: To assess the efficacy and safety of intracoronary (IC) epinephrine in the management of no-reflow phenomenon following percutaneous coronary intervention (PCI), either as first-line treatment or after the failure of conventional agents.

Design: Systematic review.

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