Fig. 2
From: Laparoscopic versus open surgery for pheochromocytoma: a meta-analysis
Forest plots of the meta-analysis for intraoperative outcomes. a: The number of IHD cases was compared between the LS and OS groups. b: Operative time was compared between the LS and OS groups. c: Intraoperative blood loss was compared between the LS and OS groups. d: The number of intraoperative blood transfusions was compared between the LS and OS groups. IHD: Intraoperative haemodynamic instability; LS: Laparoscopic surgery; OS: Open surgery; CI: Confidence interval; SD: Standard deviation