How is paroxysmal supraventricular tachycardia (PSVT) diagnosed?
The diagnosis of PSVT is based upon interpretation of the heart rate monitor and electrocardiogram. Sometimes the diagnosis is difficult because the rapid heart rate resolves before the patient presents for medical care. In these cases, where there is a recurrent pattern of palpitations, the care provider may suggest a test known as a Holter monitor. This is a small device worn for 24 or 48 hours that records every heart beat and may give a clue as to the underlying cause of the palpitations. If this fails to give direction, a 30-day event monitor may be considered. Again, a small monitor is worn, but with this device the patient triggers the recording when the palpitations begin. How is paroxysmal supraventricular tachycardia (PSVT) treated? Treatment for PSVT is directed at resetting the electrical conduction of the heart. Maneuvers to stimulate the vagus nerve and slow the heart may be the first line treatment. These include straining as if to have a bowel movement or putting cold w
