###Human: What causes nonsustained ventricular tachycardia with orthostatic hypotension? ###Assistant: Hello. When was it diagnosed? Yes, during the episode of ventricular tachycardia you may feel syncope and palpitations due to reduced stroke volume. You may get it done tilt table test, 24-hour ambulatory blood pressure, ECG monitoring is useful. Do not worry, mild MR, TR may not cause much problem. In severe cases, a few people may need ICD insertion. Anti-arrhythmia drugs may be useful. Please check it out for hypo or hyperthyroidism, electrolyte imbalance or hypocalcemia or magnesemia, etc. Please consult your cardiologist. He will examine and treat you accordingly.