Percutaneous coronary intervention for persistent complete heart block complicating inferior myocardial infarction

S Ramamurthy1, S Anandaraja, Navin Matthew

  • 1Department of Cardiology, Ste. 25, All India Institute of Medical Sciences, New Delhi, India. saraja79@yahoo.com

Insights

For inferior myocardial infarction (MI), percutaneous coronary intervention (PCI) can reverse persistent heart block, potentially avoiding permanent pacemaker implantation. This approach offers an alternative to traditional guidelines in selected cases.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Electrophysiology

Background:

  • Advanced atrioventricular block complicating acute myocardial infarction (MI) often necessitates permanent pacemaker implantation if persistent beyond the typical hospital course.
  • Inferior MI-associated heart block is typically transient but can persist, posing a management challenge.
  • Current guidelines do not prioritize percutaneous coronary intervention (PCI) for persistent heart block in MI without ongoing ischemia.

Observation:

  • A case study involving a patient with inferior MI and persistent complete heart block is presented.
  • The patient underwent successful percutaneous coronary intervention (PCI).

Findings:

  • Percutaneous coronary intervention (PCI) effectively reversed the persistent complete heart block in this patient.
  • The successful PCI obviated the need for permanent pacemaker implantation.

Implications:

  • PCI may be a viable treatment option for selected patients with inferior MI and advanced atrioventricular block.
  • Considering PCI before permanent pacemaker implantation could alter current management strategies.
  • This case highlights a potential role for early reperfusion in managing complex heart block post-MI.

Related Concept Videos

Acute Coronary Syndrome IV: Interprofessional Care01:28

Acute Coronary Syndrome IV: Interprofessional Care

IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Angina II: Classification01:27

Angina II: Classification

Angina, also known as angina pectoris, is a chest pain resulting from diminished blood flow to the heart muscle and is often a symptom of coronary artery disease. Angina presents several variants with distinctive attributes, etiologies, and therapeutic approaches. The main types of angina include stable, unstable, variant (Prinzmetal's), microvascular, intractable, and silent ischemia.Stable angina is caused by atherosclerosis, which leads to the formation of plaques that narrow the coronary...
Coronary Artery Disease V: Interprofessional Care01:27

Coronary Artery Disease V: Interprofessional Care

Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...