Application of mixed reality technology in the field of hepatobiliary surgery / 中华外科杂志

Mixed reality is a new three-dimensional presentation technology that combines the virtual digital world with the real world, which has been initially applied in the field of hepatobiliary surgery. Compared with virtual reality, augmented reality and three-dimensional visualization technology, mixed reality technology has unique advantages in preoperative evaluation and formulation of surgical plan, real-time accurate navigation during operation and three-dimensional virtual teaching. And it is a new generation of auxiliary tool for precision hepatobiliary surgery. This paper describes the application and research progress of mixed reality technology in the field of hepatobiliary surgery, and discusses its application potential and current limitations.

Clinical analysis of donor hepatectomy in living donor liver transplantation: report of 74 cases / 中华外科杂志

<p><b>OBJECTIVE</b>To evaluate the living donor selection, donor hepatectomy technique, and surgical complication in living donor liver transplantation.</p><p><b>METHODS</b>From June 2007 to July 2008, 74 consecutive cases living donor hepatectomy were performed by the same surgical team. Seventy-four donors (64 males and 10 females) with a mean age of 29.2 years old passed the donor liver assessment and evaluation program successfully. The hepatectomy procedure types contained right liver resection (n = 72), of which 27 cases harvested the middle hepatic vein and 45 cases not, left liver resection contain middle hepatic vein (n = 1) and left lateral resection (n = 1).</p><p><b>RESULTS</b>Of all the donors, operation time was (6.5 +/- 6.2) hours, the mean blood loss was 300 ml (100 - 500 ml) and didn't accept foreign blood transfusion. The maximum alanine aminotransferase (ALT) level was (229.5 +/- 108.6) U/L, the ALT returned to normal time was (12.7 +/- 4.8) d, the maximum total bilirubin (TB) level was (78.7 +/- 44.3) micromol/L, the TB returned to normal time was (8.8 +/- 2.7) d, and the mean hospital stay time was 14 days (7 - 28 d). The complications included bile leak (n = 1), cut surface hemorrhage (n = 1) and anaphylactoid purpura (n = 1). All the donors returned to normal work and life finally.</p><p><b>CONCLUSIONS</b>Precisely evaluating donor blood vascular and biliary anatomy before operation, keeping the blood vascular and bile duct integrity during operation and monitoring complication to solve it immediately after operation is crucial to ensure donor safety and recovering successfully.</p>