A tilt table test is a diagnostic procedure used to determine the cause of fainting (syncope) or dizziness. It involves lying on a motorized table that is tilted to an upright position, allowing doctors to observe how the body responds to changes in posture. This helps identify underlying conditions that might trigger these symptoms.
How the Tilt Table Test Works
The test is performed by having the patient lie flat on a table equipped with safety restraints and monitoring equipment. Electrocardiograms (ECGs) and blood pressure monitors continuously track vital signs. The table is then tilted to gradually raise the patient's body to a near-vertical position. Throughout the procedure, the patient's heart rate, blood pressure, and rhythm are carefully monitored for any changes that might indicate the cause of their symptoms.
- Purpose: To identify the cause of fainting or dizziness.
- Procedure: The patient lies on a table that tilts from a lying to a standing position while vital signs are monitored.
- Monitoring: ECG, blood pressure, and sometimes oxygen levels are monitored continuously.
What the Tilt Table Test Can Show
The test can reveal how the body reacts to changes in blood flow and circulation upon standing, helping diagnose conditions such as:
- Vasovagal syncope (neurocardiogenic syncope): The most common cause of fainting, often triggered by stress, dehydration, or prolonged standing. The tilt table test can reproduce these symptoms under controlled conditions.
- Orthostatic hypotension: A drop in blood pressure when standing up quickly, which can lead to dizziness and fainting.
- Other cardiovascular issues: While less frequently identified, the tilt table test can help uncover other underlying cardiovascular problems contributing to syncope.
The test helps healthcare providers determine the underlying cause of a patient’s fainting episodes, allowing for more effective treatment planning. The specific findings are crucial for accurate diagnosis and personalized care.
Note that the tilt table test is often performed after a comprehensive review of the patient's medical history and physical examination.
