Thread by @GroverDheera

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 8/ What’s in a C-scope ?
💎 #B2BPearl💎New guidelines @AmerGastroAssn
🔹Use High Def scope+++
🔹HDef scope ➕ Chromo (dye spray or virtual) if h/o dysplasia
🔹If using Standard Def: SD scope ➕Chromo dye spray only (not virtual)
🔗journals.lww.com/ajg/Abstract/2…

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 9/ What to biopsy ?
➕Targeted Bx🎯 of abnormal mucosa
➕Resection of polypoid lesion
➕Random Bx to document histologic extent/ healing
➕Extensive Random 4 quadrant bx every 10 cm IF no chromo, h/o dysplasia, poor visualization, PSC, foreshortened colon

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 10/ What’s next after dx of Invisible dysplasia ?
💎 #B2BPearl💎
🔹Invisible dysplasia
→ Get 2nd opinion from expert #GIPath
→ HD CLN + dye chromo by expert endoscopist + Extensive non-targeted Bx if no resectable lesion seen

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 10b/🔹High rate of synchronous/near future CRC: 22% with low grade, 45%-67% with high grade dysplasia → ✂️ = Colectomy
🔗gastrojournal.org/article/S0016-…

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 11/ How do you manage invisible dysplasia ?
🔹Invisible high grade → ✂️ colectomy
🔹Invisible multifocal low grade → ✂️ colectomy
🔹If no dysplasia on repeat HD+Chromo: Close Endo surveillance

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 12 / How do you manage visible dysplasia:
🔹Well defined lesion→ endo resection
🔹Flat lesions→ often require expert endoscopist & ESD b/o submucosal fibrosis from long standing UC
🔹Unresectable visible dysplasia → ✂️
🔹After resected dysplasia: Close Endo surveillance

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 13a/What’s Chromo?
🔹Highlight abnormal mucosa
🔹Allows for targeted biopsies of abnormal areas
🔹Dye Spray chromo with methylene blue (MB)/indigo carmine
Need optimal prep

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 13b/🔹Virtual chromo with Narrow band imaging
Can be used with HD Scope
Or If suboptimal prep
Or if localized mucosal anomaly
medprofvideos.mayoclinic.org/videos/chromoe…

@yaransarkis @MondayNightIBD @AmerGastroAssn @Spencerkelley7 @ayshaslam999 @jalpa_devi @purnie_mae @dunleavy_katie @KanikaGargMD @MarcelYibirin @JHaydek @DCharabaty @mjayoushe @AmCollegeGastro @ASGEendoscopy @Realcecum 14/ Summary:
🔹 Dysplasia➡️CRC in IBD
🔹Surveillance C-scope >8 y or at diag of PSC then q1-5y based on RF
🔹HD scope or SD scope+chromo➕random & targeted Bx
🔹Resectable Polypoid dysplasia → Endo resection
🔹Unresectable visible dysplasia, HGD, multifocal LGD --> ✂️