Figure 4

Cumulative analysis of studies comparing laser and transurethral resection of bladder tumors with respect to intraoperative complications. (A) Bladder irrigation. (B) Obturator nerve reflex. (C) Bladder perforation. M-H, Mantel-Haenszel; TURBT, Transurethral resection of bladder tumor. References: Liu et al. [13], Muraro et al. [17], Tao et al. [12], Xishuang et al. [14], Yang et al. [11], Zhong et al. [16] and Zhu et al. [15].