Table 1 Patient characteristics and results of electrophysiological study
Total (N = 334) | peCaSP (N = 63) | stCaSP (N = 271) | P value (peCaSP vs stCaSP) | |
|---|---|---|---|---|
Male | 91 (27%) | 15 (24%) | 76 (28%) | 0.50 |
Age (years) | 47.5 ± 17.6 | 41.4 ± 15.7 | 49.0 ± 17.8 | 0.0020 |
Basic EPS | ||||
Dual AV-nodal conduction | 314 (94%) | 57 (90%) | 257 (95%) | 0.19 |
At least 1 echo-beat | 288 (86%) | 43 (68%) | 245 (90%) | < 0.0001 |
2 or more echo-beats | 191 (57%) | 0 (0%) | 191 (70%) | < 0.0001 |
AVNRT induction | 146 (44%) | 0 (0%) | 146 (54%) | < 0.0001 |
Cycle length of AVNRT (ms) | 386 ± 63 | n.a. | 386 ± 63 | n.a. |
Metaproterenol administration | 145 (43%) | 58 (92%) | 87 (32%) | < 0.0001 |
Dual AV-nodal conduction | 144/145 (99%) | 57/58 (98%) | 87/87 (100%) | 0.40 |
Only after metaproterenol adm. | 18/145 (12%) | 5/58 (9%) | 13/87 (15%) | 0.26 |
At least 1 echo-beat | 135/145 (93%) | 50/58 (86%) | 85/87 (98%) | 0.015 |
Only after metaproterenol adm. | 36/145 (25%) | 12/58 (21%) | 24/87 (28%) | 0.35 |
2 or more echo-beats | 44/145 (30%) | 0/58 (0%) | 44/87 (51%) | < 0.0001 |
Only after metaproterenol adm. | 33/145 (23%) | 0/58 (0%) | 33/87 (38%) | < 0.0001 |
AVNRT induction | 18/145 (12%) | 0/58 (0%) | 18/87 (21%) | 0.0002 |
Cycle length of AVNRT (ms) | 379 ± 74 | n.a. | 379 ± 74 | n.a. |