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Published on: February 10, 2013
Cardiac sympathetic activity in stress-induced (Takotsubo) cardiomyopathy
Abhiram Prasad1, Malini Madhavan, Panithaya Chareonthaitawee
1Mayo Clinic, Rochester, Rochester, MN 55905, USA.
Background:
A 54-year-old postmenopausal woman presented with retrosternal chest pressure, nausea, and vomiting of 4 h duration. Her medical history included hypertension (treated with metoprolol and ramipril), hyperlipidemia (treated with atorvastatin), and depression (treated with fluoxetine). A few hours before symptom onset, she had witnessed an accident in which her sister sustained serious injuries. The patient was visiting her sister-who was in critical condition in the hospital-when the symptoms began.
Investigations:
Physical examination, chest radiography, laboratory testing, electrocardiography, coronary angiography, and PET with 11C hydroxyephedrine.
Diagnosis:
Stress-induced (Takotsubo) cardiomyopathy (apical ballooning syndrome).
Management:
The patient was monitored with cardiac telemetry. Metoprolol and ramipril were continued.
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Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
