Use of ergotamine is contraindicated in –
**Core Concept**
Ergotamine is a vasoconstrictor that acts by stimulating alpha-adrenergic receptors and inhibiting prostaglandin synthesis, leading to arterial vasoconstriction. It is primarily used in the treatment of migraine headaches. However, its use is contraindicated in certain conditions due to its potential for causing serious adverse effects.
**Why the Correct Answer is Right**
The primary contraindication for ergotamine is its use in patients with **ischemic heart disease**. Ergotamine can cause coronary artery vasoconstriction, leading to a reduction in myocardial oxygen supply and potentially precipitating a myocardial infarction. This is particularly concerning in patients with pre-existing coronary artery disease. Additionally, ergotamine can also cause peripheral vasoconstriction, which can increase blood pressure and cardiac workload.
**Why Each Wrong Option is Incorrect**
**Option A:** Pregnancy is not the primary contraindication for ergotamine. While ergotamine can cause uterine contractions and potentially lead to abortion, its use in pregnancy is generally considered safe when used under medical supervision.
**Option B:** Hypertension is not a contraindication for ergotamine. In fact, ergotamine can be used to treat migraine headaches in patients with hypertension, as long as the patient's blood pressure is not severely elevated.
**Option C:** Hepatic impairment is not a contraindication for ergotamine. Ergotamine is primarily metabolized by the liver, but it is not contraindicated in patients with liver disease.
**Clinical Pearl / High-Yield Fact**
Ergotamine is a potent vasoconstrictor that can cause significant adverse effects, particularly in patients with ischemic heart disease. It is essential to carefully evaluate the risks and benefits of ergotamine use in each patient before initiating treatment.
**Correct Answer: D. Ischemic heart disease.