Table 1

Patient overview

Patient numberAge
decade
WEBTreatment strategyAnat. localisationAneurysm-
type
PTIA?HeightMax. diamNeckAcute rupt.AntiaggregantsResult after treatment
RROC
FU1 RROC (mo.)FU2 RROC (months))Description and rational for treatment with WEB
15thSLS 8/6WACAcomUntreatedNo12.210.05.2NoNoneIII (3 ½)Wide and “web”-shaped neck, largest diameter of dome exceeding the largest available WEB. Additional small MCA bifurcation to be clipped, thus no antiplatelets, no stent
28thSLS 11WACAcomUntreatedYes, giant15.024.08.0No/symptNoneIIII (6)SAC: no follow-upGiant aneurysm, partially thrombosed and symptomatic. Requirement for ventricular drainage, WEB instead of stent to seal the neck. WEB deformed and integrated into previously present clot
36thDL 14/12
SL 9×6
Dual WAC+1PED (4/14)PcomRecanYes, giant28.116.34.7NoASA and
CPG
III (3 ½)2PED:
I (9)
Giant and partially thrombosed aneurysm, custom-made 14 mm WEB combined with SL 9 mm to reduce amount of coils and counteract integration into clot. Recurrence in previously thrombosed inferolateral part of the aneurysm. Successfully treated
with two additional PEDs (2× 4.25/16)
46thDL 5/3WACAcomUntreatedYes, giant20.010.64.5No/symptCPGIIIIII (2)BAC:
II(13)
SAC:
I (16)
Symptomatic giant partially thrombosed aneurysm with WEB-shaped neck, dome too large for WEB, WEB instead of stent to seal the neck, coils in dome
56thDL 6/4WACICA-TUntreatedYes, giant23.015.04.0NoASAIIIII (4 ½)SAC: II(23)
C: I(7)
Symptomatic giant partially thrombosed aneurysm with WEB-shaped neck, dome too large for WEB, WEB instead of stent to seal the neck, coils in dome
68thDL 11/9WAC +stentAcomUntreatedYes, giant26.012.011NoASA and
CPG
IIII (2)C: II (27)
WAC: II
(at 5 days)
Symptomatic giant partially thrombosed Acom aneurysm with WEB-shaped perfused portion, implanted with 10 mm DL as buffer to counteract pulse pressure wave/compaction. Neck sealed with coils
and stent
77thDL 11/9WAWBA—tipCoil-recan.Yes15.39.95.7NoNoneIIII (4)SAC: no follow-upGiant partially thrombosed BA-Tip An. Double WEB to fill the entire dome and seal the neck
88thDL 5/4WASAcomUntreatedNo11114.0Yes, HH4NoneII (7)I (14+38)Acutely ruptured Acom aneurysm, two lobes with larger distal lobe arising from prox. SAC, could not be reached by microcatheter. Instead of coiling, WEB used to occlude proximal SAC, protrusion of the WEB corrected with a Solitaire stent
  • Acom, anterior communicating artery; ASA, acetylsalicylic acid; BA, basilar artery; BAC, balloon-assisted coiling; CPG, clopidogrel; DL, dual-layer; FU, follow-up; HH, Hunt and Hess Classification; ICA, internal carotid artery; MCA, middle cerebral artery; Pcom, posterior communicating artery; PED, Pipeline embolization device; recan, recanalized; PTIA, partially thrombosed intracranial aneurysm; RROC, Raymond–Roy Occlusion Classification; SAC, stent and coils; SL, single-layer; SLS, single-layer sphere; WAC, WEB and coils; WAS, WEB and stent; WAW, WEB and WEB; WEB, Woven Endovascular Bridge.