Stress Echo and DSE

The flashcards below were created by user Westy50 on FreezingBlue Flashcards.

Indications for Stress Echo include:
- Unable to exercise
- ECG Abnormalities
- Inconclusive test
- False positive
- Territorial information required
Examples of ECG abnormalities meaning ETT could not be performed:
- LBBB
- RBBB
- LVH/Strain
- ST changes in rest
- V Pacing
- Excitable pathways
What does dobutamine act on?

Beta adrenoreceptor agonist (opposite to beta blocker)
What reverses the action of Dmine?

Beta blockers
What can Dmine do in high concentrations?

Hypotension and bradycardia
What does DSE aim to achieve:
- Increase HR and BP
- Induce ischaemia
- 85% target HR
How is ischaemia observed?

Wall motion abnormalities or ECG changes
What are some contra-indications of DSE?
- Complete AV block
- Unstable angina
- Recent MI
- Chest pain
- LMS Stenosis
- Uncontrollable AF
- Hypokalaemia
Relative C-Indications for DSE?
- Poor echo windows
- Beta blocker ingestion
Side effects of DSE?
- Chest pain
- MI
- Hypertension and Tachycardia
- A&V Arrhythmias
- Death
- Hypotension & Bradycardia
Monitoring Stages for BP:
- Every stage
- New symptoms
Monitoring stages for heart rate and rhythm:

Continuously
Monitoring stages for symptoms:

Continuously
Monitoring stages for Wall motion abnormalities:
- Every stage increment
- Each dosage
- New symptoms
DSE termination criteria:
- Maximal heart rate achieved: (220-age) x 0.85
- BP drop of >20mmHg from baseline or previous reading
- BP increase >240/120mmHg
- Uncontrolable symptoms
- Complex arrhythmias
- New/worsening wall motion abnormalitites in two adjacent LV segments or associated with V dilation
- Global reduction in V systolic function
Other drugs used:
- Adenosine
- Dipyridamole
- Regadenoson

Author:	Westy50
ID:	154424
Card Set:	Stress Echo and DSE
Updated:	2012-05-17 17:39:49
Tags:	Stress Echo
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Description:	dfwgw
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