It is common to find heart patients who have normal ECG. One must remember that the ECGs are taken at rest when the heart is beating at its lowest rate. Even with 90% blocks the patients can have a normal ECG. In such cases the patient would also agree that at rest there is no pain in the chest, the angina symptoms would only come when they increase the heart rate, while doing some physical exertion like walking.
This is the condition where we need a TMT test. The patients are to gradually increase their heart rate, thus increasing the blood requirement of the heart muscles. Simultaneously ECG records are taken. If there is a blockage of approximately more than 70% ECG shows changes, suggestive of Angina.
Patients have to physically exert for this test which uses a computerized machine.
TMT test is also called Exercise Stress Test, Computerised Stress Test or simply Stress test. This is the easiest, popular and common test performed on heart patients to determine the severity of the heart disease. Taken at an interval, this test can also show the improvement or deterioration of patient's angina.
EEG:EEG is the name commonly used for electroencephalography. Just like the ECG records the electrical activity of the heart, EEG records the electrical activity of the brain. It is safe and painless. Electrodes (small, metal, cup-shaped disks) are pasted to your scalp and record the electrical activity. They are connected to an EEG machine. The electrodes record the electrical activity. No electrical shocks are given during the test.
The EEG machine records your brain's electrical activity as a series of lines and the data is stored and analysed in a computer. It records from different regions of the brain.
Usually, the EEG will record your brain activity for 30 to 40 minutes. Electrodes are held in place by a paste that can be washed off easily when the test is over.
What can the EEG show?
The EEG may show patterns of normal or abnormal brain electrical activity. Abnormal activity may occur in a number of different conditions such as epilepsy, head trauma, stroke or brain tumour. Your doctor will look for abnormalities in the EEG and will interpret them according to your disease.
ECG:ECG is the perfect marriage of technology and diagnosis. An electrical recording of the heart, ECG reflects the proper functioning of the heart muscles and their condition as a function of the blood supply and oxygen received by them.
The most useful characteristic of the ECG is its ability to detect and describe arrhythmias, or abnormal heartbeats. We have both Analog and Digital machines, and provide bedside ECG to our inpatients.
Pathology centre at Jeevan Jyoti Hospital provides round the clock services for ECG with trained technicians under supervision of physicians to its clients.