Submucosal injection of platelet-rich plasma in endoscopic resection of large sessile lesions

Table 1 Patient characteristics

	EMR with PRP
No. of patients	11
Mean age (yr)	68.3 ± 9.48
Men/women	5/6
Mean size of lesions (mm)	46.4 ± 11.4
Basal platelet count (109/L)	175.4 ± 47.2
PRP count (109/L)	362.8 ± 98.7
Site, n (%)
Antrum	2 (18.2)
Rectum	4 (36.4)
Left colon	3 (27.2)
Right colon/cecum	2 (18.2)
Histology, n (%)
Tubular adenoma	3 (27.3)
Tubulovillous adenoma	1 (9.1)
Villous adenoma	0 (0)
Serrated adenoma	4 (36.3)
Intramucosal adenocarcinoma	3 (27.3)

EMR: Endoscopic mucosal resection; PRP: Platelet-rich plasma.

Table 2 Patient outcomes

	EMR with PRP
Delayed perforation, n (%)	0 (0)
Delayed bleeding, n (%)	0 (0)
Mean ulcerated area at baseline (cm2)	22.7 ± 11.7
Mean ulcerated area at 4 wk (cm2)	2.9 ± 1.5
Mucosal healing rate (%)	87.5

EMR: Endoscopic mucosal resection; PRP: Platelet-rich plasma.