The chronological change of indications and outcomes for single-incision laparoscopic cholecystectomy: a Korean multicenter study.

BACKGROUND: Although single-incision laparoscopic cholecystectomy (SILC) is a common procedure, the change in its surgical indications and perioperative outcomes has not been analyzed. METHODS: We collected the clinical data of patients who underwent pure SILC in 9 centers between 2009 and 2018 and compared the perioperative outcomes. RESULTS: In this period, 6497 patients underwent SILC. Of these, 2583 were for gallbladder (GB) stone (39.7%), 774 were for GB polyp (11.9%), 994 were for chronic cholecystitis (15.3%), and 1492 were for acute cholecystitis (AC) (23%). 162 patients (2.5%) experienced complication, including 20 patients (0.2%) suffering from biliary leakage. The number of patients who underwent SILC for AC increased over time (p = 0.028), leading to an accumulation of experience (27.4 vs 23.7%, p = 0.002). The patients in late period were more likely to have undergone a previous laparotomy (29.5 vs 20.2%, p = 0.006), and to have a shorter operation time (47.0 vs 58.8 min, p < 0.001). Male (odds ratio [OR]; 1.673, 95% confidence interval [CI] 1.090-2.569, p = 0.019) and moderate or severe acute cholecystitis (OR; 2.602, 95% CI 1.677-4.037, p < 0.001) were independent predictive factors for gallbladder perforation during surgery, and open conversion (OR; 5.793, 95% CI 3.130-10.721, p < 0.001) and pathologically proven acute cholecystitis or empyema (OR; 4.107, 95% CI 2.461-6.854, p < 0.001) were related with intraoperative gallbladder perforation CONCLUSION: SILC has expanded indication in late period. In this period, the patients had shorter operation times and a similar rate of severe complications, despite there being more numerous patients with AC.

Protective effect of ischemic postconditioning against hepatic ischemic reperfusion injury in rat liver.

PURPOSE: The efficiency of ischemic postconditioning (IPC) was evaluated in a rat model of ischemic liver. Concentration of survivin of liver tissue correlated with the degree of antiapoptosis, so survivin was estimated to evaluate the efficiency of IPC on ischemic reperfusion (IR) injury. METHODS: Twenty-four healthy rats were divided to three groups (SHAM, IR, and IPC). Rats in the SHAM group displayed no change during 3 hours. Rats in the IR group were ischemic within 1 hour of clamping the left hepatic artery and left portal vein. Reperfusion for 2 hours was then done. IPC group, intermittent 2, 3, 5, and 7 minutes of reperfusion followed by 1 hour of warm ischemia. Two-minute reocclusion was done after each reperfusion. Rat sera were analyzed for AST and ALT, and Western blot analysis of rat liver tissue of rats evaluated malondialdehyde (MDA) and survivin. RESULTS: MDA in the liver tissue of rats in the IR and IPC group were significantly high than in the liver tissue of the SHAM group (P = 0.003 and P = 0.008, respectively). Survivin was higher in the IPC group than in the SHAM and IR groups (P = 0.021 and P = 0.024, respectively). CONCLUSION: IPC could not prevent lipid oxidation in liver cell mitochondria, but did aid in the regeneration of ischemic injured liver cells. The results indicate that IPC can suppress the apoptosis of liver cells and reduce reperfusion injury of liver tissue.

Primary hepatic marginal zone B cell lymphoma : a case report and review of the literature.

BACKGROUND: Primary hepatic lymphoma (PHL) is a very rare malignancy, and constitutes about 0.016 % of all cases of non-Hodgkin's lymphoma and is often misdiagnosed. The optimal therapy is still unclear and the outcomes are uncertain. Among PHLs, a primary hepatic low-grade marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma) is extremely rare. METHODS: We present a case of primary hepatic lymphoma (MALT lymphoma) treated with surgical resection and adjuvant chemotherapy. A 38-year-old Korean man, who was diagnosed with chronic hepatitis B 20 years ago, was admitted for liver biopsy after liver lesions were detected on follow-up computed tomography scan (CT). Liver biopsy revealed the diagnosis of marginal zone B-cell malignant lymphoma (MALT lymphoma). The preoperative clinical staging was IE, given that no additional foci of lymphoma were found anywhere else in the body. The patient underwent left hemihepatectomy. Subsequently, the patient received two cycles of CHOP (cyclophosphamide, adriamycin, vincristine, and prednisone) regimen. RESULTS: After 15 months of follow-up, the patient is alive and well without any evidence of disease recurrence. CONCLUSION: Although the prognosis is variable, good response to early surgery combined with postoperative chemotherapy can be achieved in strictly selected patients.

Fourteen year surgical experience of gallbladder cancer: validity of curative resection affecting survival.

BACKGROUND/AIMS: Early diagnosis and R0 resection of gallbladder cancer offer a chance for cure. The aims of this retrospective study were to determine the clinicopathologic prognostic factors affecting survival and recurrence. METHODOLOGY: Between 1995 and 2008, a total of 69 patients with gallbladder cancer who underwent surgical exploration or resection were reviewed retrospectively. RESULTS: Of the 69 patients, 34 achieved R0 resection (49.3%). The overall survival rates were 36.6% at 3 years and 24.4 % at 5 years. Multivariate analysis for overall survival demonstrated that non-R0 resection, lymph node dissection, infiltrative tumors, moderate to poor differentiation and depth of invasion were significant independent predictors of poor prognosis. Recurrence occurred in 21 patients. The seventh edition of American Joint Committee on Cancer staging system provided relatively better prediction of survival in patients with gallbladder cancer. CONCLUSIONS: R0 resection and lymph node dissection is an important surgical strategy to improve overall survival. Infiltrative tumor was an independent prognostic factor for disease free survival.

Early laparoscopic cholecystectomy is the appropriate management for acute gangrenous cholecystitis.

Treatment of severe acute cholecystitis by laparoscopic cholecystectomy remains controversial because of technical difficulties and high rates of complications. We determined whether early laparoscopic cholecystectomy is appropriate for acute gangrenous cholecystitis. The medical records of 116 patients with acute gangrenous cholecystitis admitted to the Korea University Guro Hospital between January 2005 and December 2009 were reviewed. The early operation group, those patients who had cholecystectomies within 4 days of the diagnosis, was compared with the delayed operation group, who had cholecystectomies 4 days after the diagnosis. Of the 116 patients, 57 were in the early operation group and 59 were in the delayed operation group. There were no statistical differences between the groups with respect to gender, age, body mass index, operative methods, major complications, duration of symptoms, mean operative time (98 vs 107 minutes), or postoperative hospital stay. However, the total hospital stay was significantly longer in the delayed operation group. More patients underwent preoperative percutaneous cholecystostomy in the delayed operation group (3.5 vs 15.3%). Early laparoscopic cholecystectomy for acute gangrenous cholecystitis is safe and feasible. There is no advantage to postponing an urgent operation in patients with acute gangrenous cholecystitis.

Single-incision multiport laparoscopic cholecystectomy for a patient with situs inversus totalis: report of a case.

Laparoscopic cholecystectomy has become the standard treatment for symptomatic cholelithiasis in patients with situs inversus totalis (SIT). Nowadays, single-incision multiport laparoscopic surgery is safe and feasible for treating benign gallbladder disease. We report a case of successful single-incision multiport laparoscopic cholecystectomy for a patient with SIT, and describe its technical advantages.

Surgical outcomes and prognostic factors for T2 gallbladder cancer following surgical resection.

BACKGROUND: Depth of tumor invasion is an important prognostic factor for gallbladder cancer. The aim of this study was to investigate the clinicopathological prognostic factors of T2 gallbladder cancer. METHODS: We retrospectively reviewed the clinicopathological data and survival for 83 patients with T2 gallbladder cancers who underwent surgical resection between January 1995 and December 2007. RESULTS: The overall survival rates were 48.9% at 3 years and 29.3% at 5 years. Univariate analysis revealed that R0 resection (P < 0.001), extended surgery (P = 0.028), lymph node dissection (P = 0.024), non-infiltrative tumors (P = 0.001), well differentiation (P = 0.001), absence of lymphatic (P = 0.025), perineural (P = 0.001), and vascular (P = 0.025) invasion, absence of lymph node metastasis (P = 0.001), negative resection margin (P = 0.016), and stage (P = 0.002) were significantly better predictors for survival. A significant difference in survival between Rx and R1 was not found. R0 resection, lymph node dissection, well differentiation, and absence of perineural and vascular invasion were significantly independent prognostic factors for overall survival. Recurrence occurred in 48 patients (57.8%). Age older than 65 years, R0 resection, non-infiltrative tumors, and good differentiation were significant independent predictors of disease-free survival by multivariate analysis. CONCLUSIONS: For T2 tumors, radical surgery including lymph node dissection should be performed to achieve R0 resection. Tumors with infiltrative types and suspicious lymph node metastasis in the intraoperative findings were candidates for aggressive surgical management to improve patient survival.

Incidental gallbladder cancer diagnosed following laparoscopic cholecystectomy.

BACKGROUND: Laparoscopic cholecystectomy (LC) is the treatment of choice for benign gallbladder disease. Gallbladder cancers have been found following LC. The aim of the present study was to evaluate the survival outcome and prognosis of incidental gallbladder cancer diagnosed after LC. METHODS: From January 2002 to December 2007, 3,145 patients underwent LC at the Department of Surgery, Korea University Medical Center. Of these, 33 patients (1.05%) were diagnosed with gallbladder cancer after LC. Clinicopathological characteristics were retrospectively reviewed in this study. RESULTS: Of the 33 patients studied, 9 were men and 24 were women. Laparoscopic cholecystectomy alone was performed in 26 patients, and additional radical surgery was performed in 7 others. Regarding tumor staging, there were 2 Tis, 6 T1a, 4 T1b, 17 T2, and 4 T3 tumors. Male patients had a significantly higher incidence of moderately and poorly differentiated tumors (P < 0.001), T2 and T3 tumors (P = 0.02), additional second operations (P = 0.046), and recurrence (P = 0.016). The cumulative 1-, 3-, and 5-year survival rates were 87.2, 73.1, and 47.0%, respectively. Univariate analysis revealed that significant prognostic factors for poorer survival were male gender (P = 0.026), age older than 65 years (P = 0.013), the presence of inflammation (P = 0.009), moderately or poorly differentiated tumor (P < 0.001), nonpolypoid gross type (P = 0.003), and pT stage (P < 0.001). Tumor differentiation was a significantly independent predictor of poor prognosis. CONCLUSIONS: Male patients exhibited aggressive tumor characteristics. Laparoscopic cholecystectomy is an adequate treatment for pT1 tumors. For pT2 and pT3 patients, additional radical surgery might be needed to achieve a tumor-free surgical margin, along with lymph node dissection.