How long does minimally invasive gallstone surgery take?

Currently, minimally invasive surgery for gallstones primarily refers to laparoscopic cholecystectomy, which is considered the gold standard for surgical treatment of gallstone disease. When cholecystitis is mild and there is no intra-abdominal adhesion, laparoscopic surgery is typically completed rapidly, with the actual cholecystectomy taking only about 20–30 minutes. However, the total operative time—including induction of general anesthesia, preoperative skin preparation and draping, establishment of pneumoperitoneum, specimen retrieval, and postoperative recovery to full consciousness—generally lasts approximately 90 minutes.

In contrast, when cholecystitis is severe or dense intra-abdominal adhesions are present, operative duration becomes less predictable; generally, more severe inflammation correlates with longer operative times. Particularly in cases of dense adhesions involving the cystic triangle, the cholecystectomy alone may require 1–2 hours, and total operative time may extend to 3–4 hours or more. For patients with calculous cholecystitis in whom laparoscopic cholecystectomy proves technically difficult or carries an unacceptably high risk, prompt conversion to open surgery is essential to avoid iatrogenic bile duct injury and its potentially serious consequences.