Shu-You Peng

Strategy for the surgical management of insulinomas: analysis of 52 cases.

Aim: The goal of this retrospective study was to analyze the strategy for the surgical management of insulinomas. Methods: From May 2000 to October 2006, the medical records of 52 patients with insulinomas were retrospectively studied. Results: All tumors were localized precisely by imaging techniques combined with intraoperative palpation. Forty-eight patients with benign lesions underwent surgical treatment: 41 patients open and 7 patients laparoscopic procedures. Four patients with malignant insulinomas underwent tumor resection; 3 of them underwent metastatic lesion and/or lymph node dissection. There were no discrepancies regarding operation time, blood loss, and complication rate between open enucleation and laparoscopic surgery. The mean hospital stay was 11.8 ± 3.4 days after laparoscopic surgery, shorter than the 17.0 ± 6.0 days after the open approach. Twenty-two complications occurred in 17 patients (32%) following resection. On follow-up, 86% of the patients were free from symptoms, and surgical cure was achieved in 95% of the patients with benign insulinomas. Conclusions: The choice of the surgical strategy for the treatment of pancreatic insulinomas depends on size and location of the tumor and the risk of malignancy. The optimal surgical procedure is key to prevent postoperative complications. The laparoscopic approach is safe and feasible for patients with benign tumors located in body or tail of the pancreas.

Better surgical treatment method for hepatocellular carcinoma with portal vein tumor thrombus

Hepatocellular carcinoma (HCC) with portal vein tumor thrombus (PVTT) is a disease that is not uncommon, but the treatments vary drastically between Eastern and Western countries. In Europe and America, the first line of treatment is systemic therapy such as sorafenib and the surgical treatment is not a recommend option. While an increasing number of studies from China and Japan have suggested that surgical treatment results in better outcomes when compared to transcatheter arterial chemoembolization (TACE), sorafenib, or other nonsurgical treatments, and two classification systems, Japanese Vp classification and Chinese Cheng’s classification, were very useful to guide the surgical treatment. We have also found that surgical treatment may be more effective, as we have performed surgical treatment for HCC-PVTT patients over a period of approximately 15 years and achieved good results with the longest surviving time being 13 years and onward. In this study, we review the efficacy and principles of current surgical treatments and introduce our new, more effective surgical technique named “thrombectomy first”, which means the tumor thrombus in the main portal vein, the bifurcation or the contralateral portal vein should be removed prior to liver resection. Thus, compression and crushing of PVTT during the operation could be avoided and new intrahepatic metastases caused by tumor thrombus to the remnant liver minimized. The new technique is even beneficial to the prognosis of Cheng’s classification Types III and IV PVTT. The vital tips and tricks for the surgical approach are described.

Evolution of associating liver partition and portal vein ligation for staged hepatectomy: Simpler, safer and equally effective methods

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has been recently demonstrated as a method to induce rapid and extensive hypertrophy within a short time and has been employed for a variety of primary and metastatic liver tumors. However, controversies remain due to its high morbidity and mortality. To enable safer surgery, liver surgeons have searched for better technical modifications, such as partial ALPPS, mini-ALPPS, minimally invasive ALPPS, and Terminal branches portal vein Embolization Liver Partition for Planned hepatectomy (TELPP). It seems that TELPP is very promising, because it has the main advantage of ALPPS - the rapid increase of future liver remnant volume, but the morbidity and mortality are much lower because only one surgical operation is required.