Is there data that allows us to calculate how many endoscopic clips are used in the treatment of GI bleeding and to compare it to the actual number of GI bleeds?
Can I suggest you to read the following publications. I hope it can help you...
Saltzman JR, Strate LL, Di Sena V, et al. Prospective trial of endoscopic clips versus combination therapy in upper GI bleeding (PROTECCT–UGI bleeding) Am J Gastroenterol. 2005;100:1503–8.
Sung JJ, Tsoi KK, Lai LH, Wu JC, Lau JY. Endoscopic clipping versus injection and thermocoagulation in the treatment of non-variceal upper gastrointestinal bleeding: A meta-analysis. Gut. 2007;56:1364–73.
Kato M, Jung, Y, Gromski MA, Chuttani R, Matthes K. Prospective, randomized comparison of three different hemoclips for the treatment of acute upper GI hemorrhage in an established experimental setting. Gastrointest Endosc 2012; 75:3-10
Benchtop testing and comparisons among three types of through-the-scope endoscopic clipping devices. Surgical Endoscopy, January 2013 issue. Sumanth R. Daram, Shou-Jiang Tang, Ruonan Wu, S. D. Filip To