Related Experiment Video
Updated: Aug 17, 2026

Echocardiographic Assessment Using Subxiphoid-Only Examination for Hypotensive Patients
Published on: April 18, 2025
Stress echo in chest pain unit: the SPEED trial
Gigliola Bedetti1, Emilio M Pasanisi, Giancarlo Tintori
1Cardiology Dept., Civile Hospital, Imola, Italy.
Pharmacological stress echocardiography safely and effectively identifies patients with acute chest pain in the ER. This diagnostic tool accurately predicts cardiac events, aiding early patient stratification and management.
Area of Science:
- Cardiology
- Emergency Medicine
- Diagnostic Imaging
Background:
- Emergency room evaluation of acute chest pain with non-diagnostic ECG is challenging.
- Accurate risk stratification is crucial for these patients.
Purpose of the Study:
- To evaluate the safety and prognostic value of pharmacological stress echocardiography.
- To assess its utility in the emergency room chest pain unit.
Main Methods:
- 552 patients with acute chest pain and normal resting ventricular function underwent dipyridamole or dobutamine stress echo.
- Six echo labs with quality control participated.
- 13-month follow-up was obtained.
Main Results:
- No significant adverse events occurred during stress echocardiography.
- Negative predictive value for all events was 98.8%; for hard events, 99.6%.
- Patients with positive stress echo had a significantly higher event rate (78% vs. 1.2%).
Conclusions:
- Stress echocardiography is a safe and feasible tool for ER patients.
- It effectively stratifies risk in acute chest pain cases.
- It aids in early diagnosis and management decisions.
Related Concept Videos
Exercise Stress Test
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
Acute Coronary Syndrome III: Diagnostic Studies
Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Imaging Studies for Cardiovascular System II:Types of Echocardiography
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...