Question
Beta-blocker therapy after acute myocardial infarction is contraindicated in which of the following conditions ?
1. Heart failure
2. Orthostatic hypotension
3. Peptic ulcer disease
4. Bronchial asthma
Select the correct answer using the code given below :
The correct answer is
1, 2 and 4
Beta-Blocker Contraindications Post-Myocardial Infarction
Understanding the contraindications for beta-blocker therapy following an acute myocardial infarction (MI) is crucial for patient safety. Beta-blockers are generally beneficial after MI but should be avoided or used with extreme caution in certain situations.
Evaluating Contraindications
- Heart failure (1): Beta-blockers can suppress myocardial contractility and worsen fluid retention, leading to acute heart failure decompensation. Therefore, active or decompensated heart failure is a primary contraindication.
- Orthostatic hypotension (2): By reducing heart rate and blood pressure, beta-blockers can exacerbate orthostatic hypotension, causing symptoms like dizziness and fainting upon standing. This makes it a contraindication requiring careful patient selection.
- Peptic ulcer disease (3): Current medical consensus does not list peptic ulcer disease as a significant contraindication for beta-blockers. While caution might be advised in rare cases, it's not a standard reason to withhold the medication.
- Bronchial asthma (4): Beta-blockers, especially non-selective ones, can block beta-2 receptors in the bronchi, leading to bronchospasm. This is a serious risk for patients with asthma or other reactive airway diseases, making it a contraindication.
Summary of Contraindications
The conditions where beta-blocker therapy is typically contraindicated after an acute MI are: Heart failure, Orthostatic hypotension, and Bronchial asthma. Peptic ulcer disease is generally not considered a contraindication.
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Important Questions from Ischemic Heart Disease
- Which amongst the following should be considered in a patient with acute chest pain and ST segment elevation in the precordial leads?
1. Acute myocardial infarction
2. Acute hyperkalemia
3. Pericarditis
4. Hypocalcemia
5. Oesophagitis
6. Pneumothorax
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