Risk Factors for Unresectable Recurrence After Up-Front Surgery for Colorectal Liver Metastasis.

BACKGROUND: There is no clear evidence that preoperative chemotherapy for resectable colorectal liver metastasis (CRLM) is superior to up-front surgery (UFS). The aim of this study was to identify the risk factors associated with poor prognosis after UFS for CRLM. METHODS: Data about consecutive patients with CRLM who underwent liver resection at Nara Medical University Hospital between January 2000 and December 2015 were retrieved from a prospective database. Recurrence that developed within 2 years after liver resection and could not be surgically resected was defined as unresectable recurrence (UR). Preoperative risk factors associated with UR after UFS were analyzed. Among the patients with the identified risk factors, the patients who were treated with UFS were compared with those who received preoperative chemotherapy via propensity score-matching analysis. RESULTS: There were 167 patients treated with UFS, and 71 of them developed UR (the UR group). The overall survival (OS) rate of the UR group was significantly worse than that of the non-UR group (5-year survival rate: 3.8 vs. 66.8%, p < 0.001). Multivariate analysis identified a primary colorectal cancer N factor of N2-3 as a risk factor for UR (hazard ratio 2.72, p = 0.004). Propensity score-matching analysis demonstrated that among patients with N2-3 primary colorectal cancer the post-initial treatment OS of the patients treated with UFS was significantly worse than that of the patients who received preoperative chemotherapy (5-year survival rate: 11.1 vs. 30.0%, p = 0.046). CONCLUSIONS: Patients with CRLM with a primary colorectal cancer N factor of N2-3 should be considered for preoperative chemotherapy.

Significance of bacterial culturing of prophylactic drainage fluid in the early postoperative period after liver resection for predicting the development of surgical site infections.

PURPOSES: The relationship between the results of bacterial drainage fluid cultures in the early postoperative period after liver resection and the development of surgical site infections (SSIs) is unclear. We evaluated the diagnostic value of bacterial cultures of drainage fluid obtained on postoperative day (POD) 1 after liver resection. METHODS: The cases of all consecutive patients who underwent elective liver resection from January 2014 to December 2016 were analyzed. The association between a positive culture result and the development of SSIs was analyzed. RESULTS: A total of 195 consecutive patients were studied. Positive drainage fluid cultures were obtained in 6 patients (3.1%). A multivariate analysis revealed that a positive drainage fluid culture was an independent risk factor for SSIs (odds ratio: 8.04, P = 0.035), and combined resection of the gastrointestinal tract was a risk factor for a positive drainage fluid culture (P = 0.006). Among the patients who did not undergo procedures involving the gastrointestinal tract, there was no association between drainage fluid culture positivity and SSIs. CONCLUSIONS: The detection of positive culture results for drainage fluid collected on POD 1 after liver resection was associated with SSIs. However, among patients who did not undergo procedures involving the gastrointestinal tract, it was not a predictor of SSIs.

The safety of the early removal of prophylactic drainage after liver resection based solely on predetermined criteria: a propensity score analysis.

BACKGROUND: Prophylactic drainage after liver resection remains a common practice amongst hepatic surgeons. However, there is little information about the optimal timing of drain removal. METHODS: From April 2008 to December 2012 (conventional group), the drains were removed based on the treating surgeon's view. From January 2013 to April 2016 (ERP group), the drains were removed on POD 3 if the bile concentration of the drain discharge was less than three times the serum bilirubin on POD 3, and the amount of drain discharge was <500 ml on POD 3. The postoperative outcomes of the two groups were compared using one-to-one propensity score-matching analysis. RESULTS: One hundred nine patients were extracted from ERP group (n = 226) and conventional group (n = 246). The time to drain removal was significantly shorter in the ERP group than in the conventional group (3 days vs. 5 days, P < 0.001). The frequency of delayed bile leakage or the appearance of symptomatic abdominal fluid collection after drain removal did not differ between the two groups (3% vs. 4%, P = 0.791). CONCLUSION: Drain removal on POD 3 based on the volume and bile concentration is safe.

[A case of AFP-producing gastric cancer with peritoneal metastasis treated effectively with chemotherapy, mainly using S-1 and trastuzumab].

A 71-year-old man, diagnosed with advanced gastric cancer and severe pyloric stenosis, was introducted to our hospital. Para-aortic lymph nodes metastasis and pancreas invasion were seen with enhanced CT scan. Serum AFP showed a high price (1,465.3 ng/mL). Because significant peritoneal metastases were seen in the abdominal cavity, gastrojejunostomy was performed. Overexpression of the HER2 gene was seen by immunostaining for peritoneal dissemination of the omentum. After starting S-1 + CDDP + trastuzumab, the AFP was normalized immediately (7. 6 ng/mL). We then performed colostomy for a sigmoid colon stenosis. S-1 + DOC + trastuzumab was administered afterward, and we performed closure of the colostomy because the stenosis was improved. Macroscopic peritoneal dissemination in the abdomen disappeared. AFP-producing gastric cancer with peritoneal metastasis has a poor prognosis, but chemotherapy, mainly with S-1 and trastuzumab, was effective for it.

Does anatomic resection improve the postoperative outcomes of solitary hepatocellular carcinomas located on the liver surface?

BACKGROUND: It is unclear whether anatomic resection achieves better outcomes than nonanatomic resection in patients with hepatocellular carcinoma. This study aimed to compare the outcomes of anatomic resection and nonanatomic resection for hepatocellular carcinoma located on the liver surface via one-to-one propensity score-matching analysis. METHODS: Data from all consecutive patients who underwent liver resection for primary solitary hepatocellular carcinoma at Nara Medical University Hospital, Japan, January 2007- December 2015 were retrieved. Superficial hepatocellular carcinomas were defined as hepatocellular carcinoma that extended to a depth of < 3 cm from the liver surface and measured < 5 cm in diameter. The prognoses of the patients with superficial hepatocellular carcinoma who underwent anatomic resection and nonanatomic resection were compared. RESULTS: In this study 23 patients with superficial hepatocellular carcinoma underwent anatomic resection and 70 patients who underwent nonanatomic resection. The recurrence-free survival rate of the patients who underwent anatomic resection was better than that of the patients who underwent nonanatomic resection (P = .006), while no such difference was observed for nonsuperficial hepatocellular carcinoma. After the propensity score-matching procedure, the resected liver volume and operation time were the only background or clinical characteristics to exhibit significant differences between the anatomic resection (n = 20) and nonanatomic resection groups (n = 20). The recurrence-free survivial rate of the patients who underwent anatomic resection was significantly than that of the patients that underwent nonanatomic resections (P = .030), but overall survival did not differ significantly between the groups (P = .182). CONCLUSION: Anatomic resection decreases the risk of tumor recurrence and improves recurrence-free survival compared with nonanatomic resection in patients with superficial hepatocellular carcinoma.

Anal gland adenocarcinoma in situ with pagetoid spread: a case report.

BACKGROUND: Anal gland carcinoma with perianal Paget's disease is rare, and anal gland carcinoma in situ is extremely rare. No cases of anal gland carcinoma in situ with pagetoid spread have been previously reported. CASE PRESENTATION: Physical examination in a 75-year-old woman revealed an erythematous, inflamed, perianal skin lesion. Neither colposcopy, cystoscopy, colonoscopy, computed tomography, nor magnetic resonance imaging showed evidence of malignant genitourinary or gastrointestinal lesions. Histopathological examination of a biopsy specimen showed many Paget's cells in the perianal skin lesion and no malignant cells in the rectal or vaginal mucosa. Therefore, primary extramammary Paget's disease of the anogenital region was suspected, and we performed anus-preserving wide local excision. However, immunohistochemistry revealed a diagnosis of secondary extramammary Paget's disease due to adenocarcinoma arising from the anal gland. We therefore proceeded with a radical operation. Histopathological examination showed no residual cancer cells. The final diagnosis was anal gland adenocarcinoma in situ with pagetoid spread in the perianal skin. CONCLUSIONS: This is the first case report of anal gland adenocarcinoma in situ with pagetoid spread. We recommend immunohistochemical analysis of biopsy and locally resected specimens to obtain an accurate diagnosis and determine the appropriate treatment when there is no visible tumor.

Long-term observation and treatment of a widespread intraductal papillary neoplasm of the bile duct extending from the intrapancreatic bile duct to the bilateral intrahepatic bile duct: A case report.

INTRODUCTION: Few studies have reported the long-term outcomes of surgical resected intraductal papillary neoplasm of the bile duct (IPNB). Here, we describe the long-term observation and treatment of a case of widespread IPNB. PRESENTATION OF CASE: A 57-year-old male was referred to our hospital due to jaundice and dilation of the intrahepatic bile duct. Computed tomography showed dilation and irregularities of the right intrahepatic and extrahepatic bile ducts together with a 3cm nodule in the common hepatic duct. Peroral cholangioscopy revealed mucinous discharge from the ampulla of Vater, which resulted in a diagnosis of IPNB. A biopsy of the nodule and the bile duct revealed papillary adenoma in all of them. Right hepatectomy, caudate lobectomy, extrahepatic bile duct resection, and left hepaticojejunostomy were performed. The nodule was histologically diagnosed as papillary carcinoma in situ, and R0 resection was performed. However, mucus production from the papillary adenoma in the B3 and B4 was observed. We carefully managed the patient's biliary tract by inserting a biliary drainage tube into the segment 2, and he has survived for more than 7 years since the initial treatment. DISCUSSION: Mucus might be produced after the surgical resection of IPNB even if s surgical margin was benign. Five-year survival rate of benign IPNB was reported from 85% to 100%. That might be caused by difference of the postoperative management of the biliary tract. CONCLUSIONS: Careful management of the biliary tract should be performed after surgical resection of IPNB.

Safety and feasibility for single-incision laparoscopic cholecystectomy in local community hospital: a retrospective comparison with conventional 4-port laparoscopic cholecystectomy.

BACKGROUND: The aim of this study was to evaluate the safety and feasibility for single-incision laparoscopic cholecystectomy (SILC) by retrospective comparison with conventional laparoscopic cholecystectomy (CLC) in a local community hospital. METHODS: SILC was introduced and performed in 57 patients for benign gallbladder diseases. Their clinical data were compared with those of 62 patients treated with CLC. They included patient demographic data and operative outcomes. RESULTS: SILC was attempted in 57 patients and 52 cases (91.2%) were successfully completed. There were no statistical differences between the 2 groups in terms of operative time, blood loss, and postoperative complications. The length of hospital stay in the SILC group was significantly shorter compared with CLC (P < 0.0001). CONCLUSIONS: SILC has been successfully introduced in a local community hospital. The safety and feasibility was also confirmed. The SILC procedure may become 1 standard option for the treatment of benign gallbladder diseases.