Table 2

Interventions at colonoscopy which may improve serrated lesion detection rates (adapted from East et al 68)

BeneficialMay be beneficialNo clear benefit
Slower withdrawal >6 min69 70 High definition69 Narrowed spectrum endoscopy (NBI, FICE, iSCAN)71
Chromoendoscopy5 72 73 Right colon retroflexion74 Antispasmodics75
Good vs adequate bowel preparation69 76
Wide angle and enhanced mucosal views77–79
  • FICE, flexible spectral imaging colour enhancement; NBI, narrow band imaging.