HOLTER
It is a cardiac stress test, measuring hearts ability to sustain stress given by exercise in controlled environment.
Why to undergo Treadmill Test?
Mainly used to diagnose Coronary artery disease or determine prognosis after Myocardial infarction (heart attack) or coronary revascularization (angioplasty or bypass surgery).
Who should undergo test?
Patients having
- symptoms suggestive of angina
- history of heart attack
- have undergone angioplasty or bypass surgery.
How do they perform Treadmill Test?
After taking history and checking vitals, chest leads are applied and patient is explained that machine will gradually increase speed and slope every three minutes. For better application of electrodes, shaving may be preferable in chest. Test can be immediately stopped if patient feels so or having chest pain, breathlessness or fatigue. Doctor can also order stopping of test upon finding ECG changes. Most adults achieve target heart rate in 9 minutes.
For whom is test contraindicated?
Those having
- Heart attack in last 48 hours
- Uncontrolled BP (more than 200/110 mm hg)
- Unstable angina
- Uncontrolled rhythm disorder of heart
- Severe aortic stenosis, pulmonary embolism
- Acutely ill patient due to any cause
- Advanced COPD