Feasibility of single-incision laparoscopic cholecystectomy for acute cholecystitis

Figure 1 Time after onset of acute cholecystitis. Patients with conversion to laparotomy show a tendency toward increased preoperative days from onset.

Figure 2 Mean operative time for every five consecutive cases of single-incision laparoscopic cholecystectomy for acute cholecystitis. All 85 cases performed by a chief surgeon are shown above. The standard deviation of each group is also shown. There are no obvious trends suggestive of a learning curve.