Associated Sx continued:

• This is also helpful. She is not having the associated symptoms that are mandatory for a diagnosis of Panic.
• When SVT is rapid and prolonged the patient may sit down because of a feeling of weakness.
• Syncope is uncommon with SVT except for the occasional case of WPW syndrome.
• Elderly patients with underlying sinus node dysfunction sometimes faint with conversion to sinus rhythm because of long periods of asystole (tachy-brady syndrome) between the end of SVT and the beginning of NSR.