Last updated on February 21, 2024.
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Cardiac function test
- Rest electrocardiogram test
- Exercise Load electrocardiogram test
- Holter electrocardiogram test (24-hour electrocardiogram)
- 24-hour sphygmomanometer
Rest electrocardiogram test
Introduction
It accounts for a large part of the heart and derives the activity potential of endemic myocardium and special myocardium (stimulus conductive system) required for blood extermination by electrodes placed on the body surface.
Simply put, it is a waveform of electrical activity when the heart is moving.
Purpose
You can see the electrical activity of the heart. The electrical activity of the heart changes due to a variety of factors. For example, myocardial infarction, angina pectoris, arrhythmia, etc.
You can check abnormalities in the heart muscle (myocardial infarction, angina, myocardia, etc.), arrhythmia, electrolyte abnormalities, pacemaker management, and the effects of drug administration.
Attention
First of all, ask them to place the electrodes. The electrodes are attached to the chest, wrist, and ankle. Even if you don't take off your clothes, you can put your wrist, ankle, and chest. If you are wearing a long stocking, please take it off.
On both limbs, four electrodes like large washing scissors are attached, and six electrodes like suction cups are attached to the chest. After the electrode is installed, the inspection starts, but the inspection time is about 1 or 2 minutes. In the meantime, lie on your back on the bed and make it easier without putting effort into it. In the test, it is pulled by the electrode of the suction cup, but there is little pain.
You may have a meal.
State of inspection
Electrocardiograph
Inspection room
Exercise load electrocardiogram test (treadmill load, ergometer load, master load, cardiopulmonary exercise load test (CPX))
Introduction
Have the heart exercise and check the electrocardiogram change.
Adaptation
Normal electrocardiograms can evaluate cardiomyocardial abnormalities such as myocardial infarction, angina, and myocardia, arrhythmia, and electrolyte abnormalities. However, there is no change in normal electrocardiograms and may cause electrocardiogram changes during exercise (e.g. labor-activated angina).
In such a case, it is not usually possible to evaluate using ECG alone, so the exercise load is applied and the change is evaluated.
In addition, cardiopulmonary exercise load test (CPX) refers to exercise load test conducted in combination with breath gas analysis. Measure oxygen concentration, carbon dioxide concentration, and ventilation during exercise in real time. Evaluate the patient's physical strength (exercise tolerance).
Attention
Record the electrocardiogram while exercising. Unlike ordinary electrocardiograms, the chest electrodes are attached with a total of 10 seals (please tell us if you may be covered with a seal).
There are four types of exercise load, a device like a room runner, a treadmill load electrocardiogram that allows you to walk on a belt conveyor, an ergometer load electrocardiogram, CPX, and a master load electrocardiogram that allows you to go up and down stairs at a constant tempo for a certain period of time.
You can eat, but do not eat too much because it imposes an exercise load.
As for clothes, please come to the hospital in clothes suitable for exercise, or prepare clothes and shoes suitable for exercise and change clothes at our hospital. Also, you may sweat, so please prepare a change of clothes.
Inspection equipment
Inspection equipment for treadmill load electrocardiogram
This is an inspection device for ergometer load electrocardiograms.
You will walk on the belt conveyor. The speed and slope gradually change.
I'd like you to pedals like riding a bicycle.
Staircases of Master Load ECG
CPX Inspection Equipment
Holter electrocardiogram test (24-hour electrocardiogram)
Purpose
The Holter electrocardiogram is a test that records the electrocardiogram for a whole day (24 hours).
Normal electrocardiogram tests (rest electrocardiogram tests) can only be recorded for a short time, and you cannot see electrocardiogram changes at night, early in the morning, or during exercise. Therefore, the Holter electrocardiogram test can record an electrocardiogram for potential or temporary changes in electrocardiograms or temporary subjective symptoms in daily life.
Does this test involve changes in electrocardiogram when arrhythmia or angina is diagnosed, or when there is symptoms (dizziness, palpitations, convulsions, fainting, chest pain, etc.) reminiscent of arrhythmia or angina pectoris? You can distinguish it. It is also used to compare the frequency of arrhythmia occurring before and after anti-arrhythmia drug administration, to provide guidance and prognosis for patients with myocardial infarction convalescent.
Method
An electrocardiogram is an inspection that amplifies and records the potential generated as the core moves. In order to obtain this potential from the living body, electrodes are attached. Up to this point is the same as a normal electrocardiogram test (rest electrocardiogram test). After that, attach three electrodes to the chest and connect them to a small electrocardiogram recorder. At this time, especially consciously say, "I have to do something" or "I have to stop something", rather than live as usual. The purpose is to record the changes in electrocardiograms that occur in daily life. In addition, since the diagnosis is made by comparing the behavior, the load on the heart, subjective symptoms, etc. with the electrocardiogram change, you will spend time while describing the "behavior record table" described later. There are two types of recorders: a type that can be taken in a bath and a type that cannot be used. I will check it at the time of inspection. For the type you put in a bath, the seal will be stronger.
Action Record Table
As mentioned above, you will spend a "behavior record table" in order to compare your behavior and subjective symptoms with ECG. Continue to describe the actions and subjective symptoms performed while wearing the recorder in the "behavior record table". Every time you do something, enter the start time and action details (eat, drink medicine, watch TV, take a nap, ride a vehicle, smoke, walk, walk, climbed the stairs, fell asleep / woke…And so on. In addition, some subjective symptoms (palpitations, dizziness, convulsions, fainting, chest pain)…If you feel any other discomfort or pain, enter the time, duration, and symptoms for any symptoms. At this time, also press the event button (blue-green button) on the recorder.
Attention
The recording time is 24 hours. Please come to the hospital to remove the recorder at the same time the day after the installation date. Please consider it as a "two-day inspection" for convenience. At the time of recording, you may not be able to take a bath depending on the model.
Do not touch the seal electrodes or cords attached to the chest. You may feel itching on the sticking part, but be patient without scratching it.
State of inspection
It is a seal electrode and a recorder attached to the chest.
24-hour sphygmomanometer
(ABPM: Ambulatory Blood Pressure Monitaering = Measurement of blood pressure under free action)
Purpose
It is a test that measures blood pressure on a regular basis for 24 hours in daily life.
You can diagnose whether you have hypertension, and you can determine if your blood pressure changes during the day and at night are maintained by watching daily fluctuations in blood pressure. It can also be used to determine whether blood pressure control is good by medicine. Blood pressure drops at night and rises during the day. This is related to the sympathetic nerve and parasympathetic nerve, and the parasympathetic nerve is superior at night and the sympathetic nerve is superior in the daytime to control blood pressure. (The sympathetic nerve increases the heart rate and increases blood pressure. The parasympathetic nerve suppresses the heart rate and the rise in blood pressure. )
What can be seen from this test is the fluctuation of blood pressure in the day.
- Type in which night blood pressure drops compared to daytime blood pressure =dipper type
- Night blood pressure does not fall compared to daytime blood pressure = non dipper type
- Type extreme dipper type, which is excessively lower than daytime blood pressure at night =extreme dipper type
- Type in which night blood pressure increases compared to daytime blood pressure = inverted dipper type
It is classified as a type.
The nondipper type is at a higher blood pressure level and is likely to cause organ damage in the brain, heart, and kidneys, and is considered a risk factor for cardiovascular disease. According to JNC-V's recommendations, ABPM's adaptation includes white coated hypertension, drug-resistance hypertension, upset blood pressure, hypotension such as hypertension, nighttime blood pressure fluctuations, hypotension due to autonomic nervous system disorders, carotid cavea syncope, pacemaker syndrome, etc.
Method
Wrap a manchet around your upper arm, carry a small automatic sphygmomanometer (hang it from your shoulder or attach it to your waist) and spend the day. Blood pressure measurement is performed on a regular basis according to the clock built into the sphygmomanometer [daytime: every 30 minutes (just during ○ hours and just half hours), at night (from 10:00 to 6:00 in the morning): every 60 minutes (just during ○ hours) )], And the blood pressure value is remembered. At this time, especially consciously say, "I have to do something" or "I have to stop something", rather than live as usual. The purpose is to record changes in blood pressure in daily life. In addition, since the diagnosis will be made by comparing the behavior and subjective symptoms with the blood pressure value, please spend time while describing the "behavior record table" described below.
Action Record Table
As mentioned above, you will spend a "behavior record table" in order to compare behavior and subjective symptoms with blood pressure values. Continue to describe the actions and subjective symptoms performed while wearing the recorder in the "behavior record table". Every time the sphygmomanometer works, fill in the action at that time (we were eating, taking medicine, watching TV, taking a nap, riding a vehicle, smoking I was smoking, walking, climbing stairs…And so on. For sleep, check only "time you sleep" and "time you wake up". During that time, I would say "I was sleeping." In addition, some subjective symptoms (palpitations, dizziness, fainting, chest pain)…If you feel any other discomfort or pain, enter the time and symptoms for any symptoms. At this time, also press the event button (black button) on the recorder. Outside the scheduled measurement, the blood pressure at that time is measured and remembered.
Attention
The recording time is 24 hours. Please come to the hospital to remove the recorder at the same time the day after the installation date. Please consider it as a "two-day inspection" for convenience. Since a manchet is wrapped around the upper arm, you cannot take a bath while wearing a recorder. Do not touch the manshets or cord hoses wrapped around the upper arm. The contrast between blood pressure levels during awake and during sleep is also a very important point. "What time did you sleep (on the floor) and when did you get up?" "How much did you sleep?" Please keep a record of it.
Inquiries to this page
Yokohama City Apolexy and Spinal Nerves Center
Phone: 045-753-2500 (Representative)
Phone: 045-753-2500 (Representative)
Fax: 045-753-2894
Page ID: 566-503-476