Walfridsson et al evaluated patients with supraventricular tachycardia (SVT) with respect to their quality of life (QOL). They identified a number of factors that can have a negative impact for the patient and that can help to identify a patient for ablation therapy. The authors are from Linkoping University in Sweden.


Patient selection: atrioventricular nodal re-entry tachycardia (AVNRT) or Wolff-Parkinson-White (WPW) syndrome


Factors having a negative impact on the patient's quality of life:

(1) frequent episodes (more than 1 episode a month)

(2) prolonged episodes (lasting more than 1 hour)

(3) episodes occurring at rest in addition to occurring during physical activity


Aspects of the QOL affected may include:

(1) mood and emotional status

(2) physical functioning

(3) social functioning

(4) vitality

(5) impression of general health


Additional factors that could impact the patient's QOL (not listed in paper):

(1) The occurrence of SVT during rest indicates more severe disease and an inability to avoid an episode (by avoiding exertion). This would suggest that an inability to control the attacks by medicines or the Valsalva maneuver would have a negative impact on the QOL.

(2) Whether or not the patient is terrified by an episode or afraid that it could occur at an inopportune time.


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