Table 2.
Comparison of Disease Specific Quality of Life Scores at Baseline and Post Ablation (n =52)
| DISEASE SPECIFIC MEASURES ** | Baseline mean (sd) | Post Ablation mean (sd) | Change Scores | 95% CI | p Value |
|---|---|---|---|---|---|
| Average Frequency of SVT episodes (−) | % | % | < .05 | ||
| Not at all | 4 | 70 | |||
| < 2–4 times a year | 38 | 6 | |||
| Twice a month | 15 | 2 | |||
| 2–5 times a week | 23 | 4 | |||
| At least daily or more often | 20 | 18 | |||
| Average Duration of SVT episodes (−) | % | % | ns | ||
| Not Applicable | 4 | 67 | |||
| A few seconds to 5 minutes | 34 | 20 | |||
| 5–15 minutes | 14 | 8 | |||
| 20–45 minutes | 20 | 0 | |||
| Longer than 1 hour | 25 | 4 | |||
| Number of Symptoms Score (−) | 8.4 (4) | 4.5 (4) | −3.9 | (−2.3, −5.3) | <.001 |
| Symptom Bothersomeness Score (−) | 2.1 (1) | 1.4 (1) | −.70 | (−.31, −1.0) | <.001 |
| Impact of SVT on Routine Activities (−) | 28 (23) | 10 (21) | −18 | (−13, −26) | <.001 |
| Days Missed Work or School (−) | 1 (2) | 2 (6) | +1 | (2.8, .67) | ns |
| Days Cut Down on Activity (−) | 7 (10) | 3 (7) | −4 | (−7, −1) | < .05 |
|
| |||||
| GENERIC MEASURES* | |||||
| Health Distress (+) | 63 (24) | 82 (22) | +19 | (26.6, 10.3) | < .001 |
| Physical function (+) | 75 (25) | 88 (22) | +13 | (22.1, 6.4) | .001 |
| Vitality (+) | 43 (25) | 59 (23) | +16 | (25.8, 9.2) | <.001 |
| Mental Health (5 item) (+) | 69(18) | 76 (15) | +7 | (12.4, 2.3) | .004 |
| Mental Health Index (17-item) (+) | 70 (17) | 79 (14) | +9 | (12.6, 4.6) | <.001 |
SVT= supraventricular tachycardia;
*
= median values; N/A= response choice of “not applicable”.
**
Negative change score indicates improvement post ablation and positive change score indicates worsening on all scales.
*
Positive change score indicates improvement post ablation.