Objective To evaluate different clinical effects of three inflow occlusion methods in hepatectomy including pringle maneuver （Pringle group），selective portal venous exclusion （SPVE group）， and Glissonean pedicle exclusion （SGSE group）. Methods The clinical data of patients underwent the liver resection with the above liver inflow occlusion methods were retrospectively analyzed. The operation time， inflow occlusion time， amount of intraop-erative blood loss， transfusion rate， and postoperative hepatic function and complication rate were compared for each group. Results There were not significant difference of preoperative conditions，operation time， inflow occlusion time，tumor character， postoperative liver function， hospital time，and ICU time （P＞0.05）. The amount of intraoperative blood loss and rate of blood transfusion of SGSE group were significantly less （lower） than those Pringle group and SPVEgroup （P＜0.05）. In addition to the first day after operation， the AST and ALT at other time point of SPVE group and SGSE group were improved than that Pringle group （P＜0.05）， while TBIL at the third and fifth day after operation ofPringle group were improved （P＜0.05）. The complication rates of SPVE group and SGSE group were significantly lowerthan that of Pringle group （P＜0.05）. Conclusions In the similar operatin time and inflow occlusion time，Glissonean pedicle exclusion method can control the intraoperative blood loss and blood transfusion better，and can promote the patientrecovery. Besides， the inflow occlusion methods should be selected based on the practical condition of patients.
Objective To investigate the value of contrast enhanced ultrasound (CEUS) in evaluating the short term therapeutic response to radiofrequency ablation (RFA) of primary hepatocellular carcinoma. Methods One hundred and ten lesions were studied in 96 patients. Each patient underwent CEUS within a week before RFA, the number, size, border, inner echo and perfusion pattern of lesions were observed. One month after ultrasound-guided RFA, color Doppler flow imaging, CEUS and contrast enhanced computed tomography (CECT, reference standard) were performed to assess the therapeutic response. Results Before RFA, in 96 cases with 110 lesions, 83 lesions showed homogeneous hyper-enhancement and the other 27 heterogeneous hyper-enhancement in arterial phase, and 98 lesions were hypo-enhanced in portal venous phase and late phase and the other 12 iso-enhanced. One month after RFA, 99 of 110 lesions were found no-enhancement in entire CEUS procedure, while 11 lesions showed local enhancement on the edge of lesion. Ninety-six of 110 lesions showed no-enhancement and other 14 with irregular enhancement by CECT. There was no statistical significance between CEUS and CECT (χ2=0.406, Pgt;0.05). Fourteen lesions as tumor residual by CECT were underwent RFA again, and then 1 month after RFA no-enhancement was showed by both CECT and CEUS. Conclusion CEUS can play a role in assessing the short term therapeutic response to RFA of hepatocellular carcinoma.