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Table 3 Complications and additional IOP-lowering procedures after GATT and KDB

From: Gonioscopy-assisted transluminal trabeculotomy versus goniotomy with Kahook dual blade in patients with uncontrolled juvenile open-angle glaucoma: a retrospective study

  GATT (N = 36) KDB (N = 13) P value
Complications
Hyphema 36 (100%) 13 (100%) /
Transient IOP spike 12 (33.3%) 2 (15.4%) 0.219a
Hypotony 1 (2.78%) 3 (23.1%) 0.022a
Photophobia 1 (2.78%) / 0.735b
Additional procedures 5 (13.9%) 8 (61.5%) 0.001a
Ahmed valve 4 (11.1%) 2 (15.4%)  
SLT 2* (5.56%) 3 (23.1%)  
Excision of encapsulated bleb for previous GDD 1 (2.78%) /  
GATT / 3 (23.1%)  
  1. *These two patients went through SLT and subsequent valve implantation and excision of encapsulated bleb, respectively. IOP intraocular pressure, GATT gonioscopy-assisted transluminal trabeculotomy, KDB Kahook dual blade, SLT selective laser trabeculoplasty, GDD glaucoma drainage device
  2. a Chi-square test
  3. b Fisher’s exact test