Table 2

Treatment details and follow-up outcomes of patients presenting with mass effect

CharacteristicsFrequency
N=218 aneurysms
PED type
 Classic PED107 (49.1%)
 Flex PED111 (50.9%)
Number of PEDs used
 Single208 (95.4%)
 Multiple10 (4.6%)
Treatment modality
 PED only91 (41.7%)
 PED+coils127 (58.3%)
Device deployment
 Unsuccessful4 (1.8%)
 Successful after adjustment11 (5.1%)
 Successful203 (93.1%)
Satisfactory occlusion immediately after PED treatment
 Incomplete occlusion188 (86.2%)
 Complete occlusion30 (13.8%)
Clinical outcomes
 Post-PED ischaemic stroke or transient ischaemic attack14 (6.4%)
 Post-PED haemorrhagic stroke12 (5.5%)
 Post-PED mass effect relief73 (33.5%)
 Post-PED mass effect deteriorate21 (9.6%)
Parent artery occlusion9 (4.1%)
Complete aneurysm occlusion at last follow-up128 (58.7%)
Mass effect relief at follow-up156 (71.6%)
 mRS Score
  Pre-PED mRS Score
   0–2216 (99.1%)
   3–62 (0.9%)
  Post-PED mRS Score (<30 days)
   0–2204 (93.6%)
   3–614 (6.4%)
  mRS Score at follow-up
   0–2207 (95.0%)
   3–611 (5.0%)
Mortality6 (2.8%)
  • Data are shown as n (%) or the mean±SD.

  • mRS, modified Rankin Scale; PED, Pipeline Embolization Device.