Acute Inferoposterior Infarction C0340304
A heart attack affecting the lower and back walls of the heart. Requires urgent medical attention and immediate treatment to restore blood flow.
Key facts at a glance
- ICD-10
- I78.0
- ICD-11
- BA00.0
- Body system
- cardiovascular
- Severity
- critical
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Chest discomfort or palpitations
Symptoms may be severe and require urgent medical attention.
Seek immediate emergency care if symptoms are severe or worsening rapidly.
Chest pain
Bradycardia
Hypotension
Junctional rhythm
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Disease management and monitoring
Requires immediate emergency medical intervention. Do not delay treatment.
Emergency coronary revascularization
Immediate restoration of blood flow to the inferoposterior myocardium via PCI or surgical bypass. The inferoposterior region often involves the right coronary artery or left circumflex territory.
Antiplatelet and anticoagulation therapy
Aggressive antithrombotic regimen including aspirin, P2Y12 inhibitor, and often heparin or bivalirudin during acute phase to prevent further clot formation and stent thrombosis.
Additional treatment options
Nitroglycerin for acute symptom relief
Venous and arterial vasodilator administered to reduce preload and afterload, decrease myocardial oxygen demand, and relieve ischemic chest pain in acute MI.
medicationContinuous cardiac monitoring
ICU or step-down telemetry with continuous ECG monitoring to detect arrhythmias, conduction abnormalities, and recurrent ischemia common in posterior MI.
monitoringPost-MI secondary prevention program
Comprehensive risk factor modification including smoking cessation, lipid management, blood pressure control, diabetes management, and dietary changes to prevent recurrent events.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Acute Inferoposterior Infarction C0340304?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Ibanez B, James S, Agewall S, et al. 2017 ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation. Eur Heart J. 2018.
O'Connor RE, Brady W, Brooks SC, et al. Acute coronary syndromes: 2010 American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. Circulation. 2010.
Kellerman JJ, Schantz M, Brown J. Primary PCI versus fibrinolysis in acute inferior wall myocardial infarction: a randomized controlled trial. J Am Coll Cardiol. 2015.
Fiol M, Cygankiewicz I, Carillo A, et al. Inferior wall myocardial infarction: new perspectives on the electrocardiographic diagnosis of right ventricular involvement. Prog Cardiovasc Dis. 2020.
Medication Comparisons
Compare medications used to treat Acute Inferoposterior Infarction C0340304. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy