STEMI vs NSTEMI vs Angina vs Unstable Angina

Timestamp Topic Title [00:00] Introduction: The ACS Disease Continuum [00:27] Stable Angina: Fixed Stenosis and Reversible Ischemia [01:05] Unstable Angina: Dynamic Ischemia, Normal Troponins [01:25] NSTEMI: Subendocardial Necrosis with Troponin Elevation [01:48] STEMI: Abrupt, Complete Coronary Occlusion [02:19] Occlusion MI Equivalents (Subtle STEMI Patterns) [02:44] Differentiating NSTEMI and Unstable Angina (The Troponin Role) [03:29] High-Risk Clinical Features for Early Invasive Management [03:45] Role of Echocardiography in Diagnosis and Prognosis [04:10] Cath Lab Urgency: Tiered Intervention Strategy [04:36] Expert Subtleties (Posterior MI, Global Ischemia) [04:59] Red Flags and Escalation for Ischemia/Instability [05:17] The ACS Subtype Algorithm STEMI, NSTEMI, unstable angina, and stable angina all live on the same spectrum of acute coronary syndromes, but the pathophysiology, ECG patterns, and cath lab urgency are completely different. This video gives you the top 0.1 percent expert framework for separating these entities in minutes using coronary physiology, ECG phenotypes, troponin behavior, and bedside echo. We break ACS down to its core: plaque rupture or erosion, platelet activation, thrombus formation, and dynamic changes in coronary flow. You’ll learn how subtle differences in thrombus burden, distal embolization, and microvascular obstruction determine whether a patient presents with stable angina, unstable angina, NSTEMI, or full-thickness STEMI. This video walks through the high-yield distinctions: Stable Angina • Predictable exertional symptoms • Fixed stenosis with reduced flow reserve • Normal troponin • Reversible ischemia Unstable Angina • Dynamic ischemia from non-occlusive thrombus • Symptoms at rest or increasing frequency • Normal troponin but high short-term risk • Urgent evaluation required NSTEMI • Subtotal occlusion with subendocardial infarction • Troponin rise and fall • ST depression or T-wave inversion • Early invasive strategy for high-risk patients STEMI • Complete coronary occlusion • Transmural ischemia with ST elevation or equivalents • Requires immediate reperfusion We also cover expert-level ECG interpretation: hyperacute T waves, reciprocal changes, de Winter pattern, posterior MI with isolated ST depression in V1–V3, high-lateral MI, and occlusion MI without ST elevation. You will learn how to integrate troponin kinetics, ischemic symptoms, hemodynamic status, and echo findings such as regional wall motion abnormalities and mechanical complications to determine urgency of cath lab activation. Finally, we outline the physiologic decision-making pathway for urgent, early, or elective angiography—and the red flags that demand immediate escalation: refractory ischemia, arrhythmias, shock, pulmonary edema, syncope, or evidence of structural complications. This is the expert ACS framework used by cardiologists, intensivists, emergency clinicians, and cath lab teams to stratify risk, guide therapy, and save myocardium. Pulse & Pressors: where critical care gets crystal clear. #STEMI #NSTEMI #unstableangina #angina #acutecoronarysyndrome #ACS #cardiology #criticalcare #ECG #EKG #hemodynamics #troponin #occlusionMI #posteriorMI #hyperacuteTwaves #coronaryocclusion #PCI #cathlab #myocardialinfarction #ischemia #resuscitation #cardiaccare #cvicu #emergencymedicine #physiology #hemodynamics #cardiacphysiology #cardiothoracicsurgery #cardiacoutput #cardiology #cardiacfunction #medicaleducation #anesthesia #criticalcare #intensivecareunit ‪@ICUNURSE‬ ‪@korean_society_of_cardiology‬ ‪@EuropeanSocietyofCardiology‬ ‪@ICUAdvantage‬ ‪@annalsofcardiothoracicsurg2361‬ ‪@interventionalcardiology7001‬ ‪@apintervencaocardiovascular‬ ‪@CongresosSCC‬ ‪@cardio.heart.care.drnavin‬ ‪@CardioDF‬ ‪@cardiologydepartmentainsha9783‬ ‪@YorkCardiology‬ ‪@dailycardiology‬ ‪@drafzalcardiologyofficial‬ ‪@cardiacsurgerycrete‬ ‪@firstheartcardiaccentre‬ ‪@MedtronicCardiacandVascular‬ ‪@ArunaCardiacCare‬