Junji Kita

Dokkyo Medical University, Totigi, Tochigi, Japan

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Publications (71)116.15 Total impact

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    ABSTRACT: Among various preoperative evaluations of liver function, accurate assessment of liver cirrhosis (LC) is especially important in patients undergoing surgery for hepatocellular carcinoma (HCC).
    Journal of Surgical Research 09/2014; · 2.02 Impact Factor
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    ABSTRACT: Background: An inflammation-based prognostic score, the modified Glasgow prognostic score (mGPS), has been reported to be useful for predicting postoperative survival in patients with various types of cancer. However, no studies have investigated whether the mGPS can predict biliary stent (BS) patency in patients undergoing BS placement for unresectable malignant biliary obstruction (UMBO). Aim: To evaluate the usefulness of the mGPS for predicting BS patency in patients undergoing intraoperative placement of uncovered expandable metallic stents (EMSs) for UMBO. Patients and Methods: The mGPS was calculated as follows: patients with both an elevated C-reactive protein (CRP) level (>1.0 mg/dl) and hypoalbuminemia (<3.5 g/dl) were allocated a score of 2. Patients with only an elevated CRP level were allocated a score of 1, and patients without an elevated CRP level were allocated a score of 0. EMS patency was compared by Kaplan-Meier analysis and log-rank test between the two groups (mGPS 0 vs. mGPS 1 or 2). The significant risk factors for EMS occlusion were investigated by Cox proportional hazards model analysis. Results: Kaplan-Meier analysis revealed that patients with mGPS 1 (n=7) and 2 (n=19) had a lower EMS patency rate (p=0.014) than patients with mGPS 0 (n=37). Although univariate analyses revealed that a high serum total bilirubin level, stent-in-stent placement, and mGPS 1 or 2 were significant risk factors predictive of EMS occlusion, multivariate analysis demonstrated that no independent risk factors were significant. Conclusion: mGPS is a significant predictor of EMS patency in patients undergoing intraoperative placement of BS.
    Anticancer research 07/2014; 34(7):3617-22. · 1.71 Impact Factor
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    ABSTRACT: We investigated whether a preoperative scoring system (the "CRP-AFP Score [CAS]") based on the serum levels of C-reactive protein and alpha-fetoprotein would predict outcome in patients undergoing hepatectomy for hepatocellular carcinoma.
    American journal of surgery. 05/2014;
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    ABSTRACT: Abstract The outcome of liver resection (LR) for elderly hepatocellular carcinoma (HCC) patients with portal hypertension (PHT) who may be excluded as liver transplantation candidates has not been fully evaluated. One hundred ninety-five patients who underwent initial curative LR for HCC with PHT were divided into 2 groups: age <70 years (n = 131) and age ≥70 years (n = 64). Clinicopathologic data and postoperative complications were compared. Preoperative characteristics and postoperative complications were similar in both groups. However, in-hospital mortality was significantly more frequent in elderly than in younger patients (11% versus 1%, P = 0.002). No significant intergroup differences were observed in the 5-year disease-free survival rate or recurrence rate (19.7% versus 17.2%; P = 0.338, 63% versus 56%; P = 0.339). Although LR for elderly HCC patients with PHT can be performed with curative intent and gives results comparable with those in younger patients, it is associated with higher in-hospital mortality.
    International surgery 03/2014; 99(2):153-60. · 0.31 Impact Factor
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    ABSTRACT: Background The current standard treatment for extrahepatic distal bile duct carcinoma (EDBDC) is surgical resection, as no effective alternative treatment exists. In this study, we investigated the treatment strategies and outcomes for 90 cases of EDBDC at our department. Material and Methods Between April 2000 and March 2013, 90 pancreatoduodenectomies (PDs) were performed for EDBDC. The mean patient age was 69.1±9.8 years, and there were 59 males and 31 females. Extended lymph adenectomy including lymph nodes around the common hepatic artery and celiac axis was performed in all patients. The mean operation time was 537.1±153.8 min and the mean operative blood loss was 814.0±494.0 ml. There were no operation-related deaths. The overall 1-, 3-, and 5-year survival rates were 90.0%, 51.2%, and 45.0%, respectively. Results Lymph node metastasis was present in 28 patients (N+; 31.1%), and it was absent in 62 (N-; 68.9%). The 5-year survival rate was 20.0% for N+ patients and 52.4% for N- patients, which is significantly higher (P=0.03). Nine cases (10.0%) showed hepatic-side ductal margin (HM) positivity for carcinoma. The 5-year survival rate was 18.7% for HM-positive patients and 48.3% for HM-negative patients, which is significantly higher (P=0.005). In multivariate analysis, N+ was the strongest adverse prognostic factor. Subclass analysis of 62 cases (excluding 28 N+ cases) revealed 7 patients with positive HMs (11.3%) and 55 patients with negative HMs (88.7%). The 5-year survival rate was 47.6% for HM-positive patients and 49.8% for HM-negative patients (P=0.73). Thirty-five cases (38.9%) recurred: there were 19 cases of local recurrence (21.1%), 11 cases of liver metastasis (12.2%), 4 cases of distant recurrence (4.4%), and 1 case of para-aortic lymph node metastasis (1.1%). Conclusions In conclusion, when HM is positive in N+ cases, additional resection of the bile duct is not necessary to render the HM negative for carcinoma.
    Medical science monitor: international medical journal of experimental and clinical research 01/2014; 20:471-5. · 1.22 Impact Factor
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    ABSTRACT: ABO-incompatible living-donor liver transplantation (ABO-LDLT) is generally more difficult to perform than ABO-incompatible kidney transplantation. Despite introduction of rituximab, ABO-LDLT in non-responders is a still difficult issue. A 23-year-old woman with primary sclerosing cholangitis underwent LDLT. The recipient's blood type was 0(+) and the donor's was B(+). Rituximab was infused twice on preoperative day (POD) 14 and 7. Plasma exchange (PE) was performed on PODs 5, 3, 2, and 1. However, repeated PE failed to decrease the anti-B antibody titer. On the other hand, preoperative esophagogastroscopy revealed esophageal varices with red color sign. Therefore, simultaneous liver transplantation and Hassab operation were performed. The donor left lobe of the liver was orthotopically transplanted into the recipient following Hassab operation. Flow cytometry on the day of surgery showed that the frequencies of B cells (CD20+) and memory B cells (CD20+/CD27+) in the peripheral blood were 0.9% and 0.3%, respectively; flow cytometry of cells recovered from the spleen revealed that the frequencies of B cells and memory B cells were 2.5% and 2.4%, respectively. Acute cellular rejection occurred on POD 15, and was treated by steroid pulse therapy, leading to a decrease in the anti-B antibody titer. The liver was functioning well on POD 390 (AST 19, ALT 34). In non-responders to ABO-LDLT, anti-donor blood type antibody-producing cells remains in the spleen after the conventional preoperative regimen. Splenectomy is an option for ABO-LDLT non-responders.
    Hepato-gastroenterology 10/2013; 60(127):1624-6. · 0.77 Impact Factor
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    ABSTRACT: BACKGROUND: An inflammation-based prognostic score, the modified Glasgow Prognostic Score (mGPS), has been established as a useful tool for predicting postoperative outcome in patients with cancer. However, no studies have investigated the usefulness of the mGPS for prognostication in patients undergoing palliative surgery for unresectable malignant biliary obstruction (UMBO). The present study was conducted to investigate whether the mGPS is useful for predicting the postoperative survival of patients undergoing intraoperative placement of an expandable metal stent for UMBO, or not. METHODS: The mGPS was calculated as follows: patients with both an elevated level of C-reactive protein (CRP) (>1.0 mg/dL) and hypoalbuminemia (<3.5 g/dL) were allocated a score of 2. Patients with only an elevated CRP level were allocated a score of 1, and patients without an elevated CRP level (≤1.0 mg/dL) were allocated a score of 0. Postoperative survival was evaluated by Kaplan-Meier analysis and log rank test. The significance of risk factors for postoperative survival was evaluated with the Cox proportional hazards model. RESULTS: Kaplan-Meier analysis revealed that patients with mGPS 0 (n = 36) and 1 (n = 7) had better postoperative survival (p = 0.017) than patients with mGPS 2 (n = 17). The 6-month and 1-year survival rates of patients with mGPS 0 and 1 were 58.1 and 27.3 %, and those for patients with mGPS 2 were 25.0 and 6.2 %, respectively. Multivariate analysis revealed that mGPS (0, 1/2) was a significant risk factor for postoperative survival (hazard ratio 3.271; 95 % CI 1.109-9.649; p = 0.032). CONCLUSION: The mGPS is not only one of the most significant predictors of postoperative survival for UMBO patients receiving intraoperative biliary stenting but also a useful indicator capable of dividing such patients into two independent groups before surgery.
    World Journal of Surgery 05/2013; · 2.23 Impact Factor
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    ABSTRACT: : Delayed gastric emptying (DGE) is one of the major complications after pancreaticoduodenectomy (PD), occurring in 14% to 61% of cases. There have been no studies that compare the incidence of DGE in terms of the reconstruction method of gastrojejunostomy performed in subtotal stomach-preserving pancreaticoduodenectomy (SSPPD). The objective of this study was to evaluate the superiority of Billroth II (B-II) to Roux-en Y (R-Y) reconstruction on decreasing the incidence of delayed gastric emptying DGE after SSPPD by a prospective randomized controlled trial. : Between April 2008 and August 2011, 101 patients who underwent SSPPD for pancreatic head or periampullary diseases were randomly allocated to B-II reconstruction (n = 52) and R-Y reconstruction (n = 49) groups. The primary endpoint was incidence of DGE. : DGE occurred in 5.7% of patients in the B-II group and in 20.4% of patients in the R-Y group (P = 0.028). Patients in the B-II group had a significantly shorter hospital stay after operation than patients in the R-Y group (31.6 ± 15.0 days vs. 41.4 ± 20.5 days, P = 0.037). In terms of postoperative complications, the incidence of pancreatic fistula was significantly higher in patients with DGE (38.5%) than in patients without DGE (14.8%) (P = 0.037). : It is suggested that the incidence of DGE after SSPPD can be decreased by using B-II rather than R-Y reconstruction for gastrojejunostomy.(Clinical Trials Registry, UMIN-CTR: http://www.umin.ac.jp/ctr/, ref no. UMIN000003535).
    Annals of surgery 05/2013; 257(5):938-42. · 7.90 Impact Factor
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    ABSTRACT: We report a 51-year-old female patient with adult-onset type II citrullinemia (CTLN2) who had a history of pancreatoduodenectomy for duodenal somatostatinoma with metastases to regional lymph nodes at age 49 years, paying special attention to indications for liver transplantation. At age 50 years, she developed hepatic encephalopathy with elevation of plasma ammonia and citrulline levels. A diagnosis of CTLN2 was made by DNA analysis of the SLC25A13 gene and treatment with conservative therapies was begun, including a low-carbohydrate diet and supplementation with arginine and sodium pyruvate. However, despite these treatments, frequent attacks of encephalopathy occurred with markedly elevated plasma ammonia levels. While we were apprehensive regarding the risk of recurrence of somatostatinoma due to immunosuppressive therapy after liver transplantation, the patient was in a critical condition with CTLN2 and it was decided to perform living-donor liver transplantation using a graft obtained from her son. Her postoperative clinical course was uneventful and she has had an active life without recurrence of somatostatinoma for 2 years. This is the first case of CTLN2 with somatostatinoma. As the condition of CTLN2 patients with rapidly progressive courses is often intractable by conservative therapies alone, liver transplantation should be considered even after surgery for malignant tumors in cases with neither metastasis nor recurrence.
    Hepatology Research 05/2013; 43(5):563-8. · 2.07 Impact Factor
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    ABSTRACT: BACKGROUND: The aim of this study was to compare postoperative survival between hepatocellular carcinoma (HCC) patients with and without viral infection. METHODS: From among 398 HCC patients in our collected database, 377 who underwent surgery were enrolled. The patients were divided into 2 groups: group 1, those who had no hepatitis B virus or hepatitis C virus infection, and group 2, those who had hepatitis B virus or hepatitis C virus infection. Univariate analysis was performed to compare clinical factors, including viral infection, with overall survival. Kaplan-Meier analysis and the log-rank test were used to evaluate the overall and disease-free survival curves for the 2 groups. RESULTS: Univariate analysis showed that viral infection showed no such association. Moreover, Kaplan-Meier analysis and the log-rank test revealed no significant intergroup differences in either overall or disease-free survival. CONCLUSIONS: The presence or absence of viral infection shows no significant association with the postoperative survival of patients undergoing surgery for HCC.
    American journal of surgery 03/2013; · 2.36 Impact Factor
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    ABSTRACT: The aim of this study was to investigate whether menatetrenone (MNT) suppresses hepatocellular carcinoma (HCC) recurrence in patients undergoing hepatectomy. Between January 2005 and September 2009, 101 patients who underwent curative hepatectomy for primary HCC were enrolled in the study. Patients were divided into two groups: a non-MNT group (n=51), and an MNT group (n=50) that was administered 45 mg of MNT daily. During the observation period, recurrence was observed in 33 patients in the non-MNT group and in 28 patients of the MNT group (p=0.545). In patients with a preoperative Des-γ-carboxy-prothrombin (DCP) level lower than 40 AU/l (n=38), the cumulative disease-free survival rates at 12, 36, and 60 months in the non-MNT group, were 81.3%, 0.0%, and 0.0%, respectively, while those in the MNT group were 78.3%, 58.1%, and 31.0%, respectively (p=0.060). MNT has a moderately suppressive effect on HCC recurrence after hepatectomy, especially in patients with a normal preoperative DCP level.
    Anticancer research 12/2012; 32(12):5415-20. · 1.71 Impact Factor
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    ABSTRACT: BACKGROUND: The current study was conducted to evaluate the safety and utility of intraoperative transhepatic biliary stenting (ITBS) in patients with unresectable malignant biliary obstruction (UMBO) diagnosed intraoperatively. METHODS: In this study, 50 patients who underwent ITBS for UMBO between April 2001 and May 2009 were retrospectively reviewed. For 26 patients who underwent preoperative percutaneous transhepatic biliary drainage (PTBD), the expandable metallic stent (EMS) was inserted intraoperatively by the PTBD route in a single stage. For 24 patients, the intrahepatic bile ducts were intentionally dilated by injection of saline via the endoscopic nasobiliary drainage or the percutaneous transhepatic gallbladder drainage route, and the puncture was performed under intraoperative ultrasound guidance followed by guidewire and catheter insertion. Thereafter, the EMS was placed in the same manner. The initial postoperative complications and long-term results of ITBS were evaluated. RESULTS: In all cases, ITBS was technically successful. Stenting alone was performed in 22 patients and stenting combined with other procedures in 28 patients. Hospital mortality occurred for three patients (6 %), and complication-related mortality occurred in two cases (4 %). There were nine cases (18 %) of postoperative complications. The median survival time was 179 days, and the EMS patency time was 137 days. During the follow-up period, EMS occlusion occurred in 23 cases (46 %). Best supportive care was a significant independent risk factor for early mortality within 100 days after ITBS (p = 0.020, odds ratio, 9.398). CONCLUSIONS: Single-stage ITBS is feasible for palliation of UMBO and seems to have a low complication rate.
    Surgical Endoscopy 07/2012; · 3.43 Impact Factor
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    ABSTRACT: Hepcidin, a key regulator of iron homeostasis, is also a marker of acute inflammation. In the present study we investigated the changes in the serum hepcidin level and correlations between hepcidin and other markers of acute inflammation during the perioperative period in patients after abdominal surgery. Serum hepcidin, hemoglobin (Hb), hematocrit (Ht), white blood cell (WBC) count, frequency of neutrophils, and C-reactive protein (CRP) were measured preoperatively (Pre), and on postoperative days (POD) 1, 3, 7, and 14. In patients undergoing gastrectomy, the median levels of hepcidin preoperatively and on POD 1, 3, 7, and 14 were 6.5, 53.1, 31.7, 15.6, and 4.0 ng/dl, respectively (p < 0.0001). The corresponding levels in colectomy patients were 8.5, 78.3, 60.1, 49.7, and 8.4 ng/dl, respectively (p = 0.0002); those in hepatectomy patients were 6.6, 16.3, 3.5, 13.4, and 3.4 ng/dl, respectively (p = 0.0022); and those in patients undergoing surgery for diffuse peritonitis were 24.8, 50.1, 43.1, 31.2, and 31.7 ng/dl, respectively (p = 0.4933). There were no significant decreases in Hb and Ht in the patients undergoing gastrectomy, colectomy, or surgery for diffuse peritonitis. The level of hepcidin was significantly correlated with the WBC count, frequency of neutrophils, and CRP level during the perioperative period for all four types of operation. Like other inflammatory markers, an increase in the level of hepcidin (i.e., a hepcidin storm) occurs in the acute phase after gastrectomy, colectomy, hepatectomy, and surgery for diffuse peritonitis.
    World Journal of Surgery 02/2012; 36(4):800-6. · 2.23 Impact Factor
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    ABSTRACT: Pancreatic fistula (PF) after pancreaticoduodenectomy (PD) is still a severe complication and a challenging problem. The common risk factors are the soft pancreas and small pancreatic duct of the remnant pancreas. Those two risk factors were recognized during surgery. On the other hand, a preoperatively determined risk factor of PF is unclarified. We conducted a retrospective analysis of 203 patients consecutively treated by PD from April 2000 to October 2010. PF was defined according to the criteria of the International Study Group of Pancreatic Fistula. Clinical and pre- and intraoperative data were compared between PF and non-PF patients. The recommended cutoff value of body mass index (BMI) as 20 kg/m(2) was defined by receiver operating characteristic curve analysis. PF occurred in 53 (26.1%) of 203 patients. In univariate analysis, BMI and soft remnant pancreas were found to be risk factors of PF (P = 0.027, P = 0.005). In multivariate analysis, BMI and soft pancreas were also risk factors of PF (P = 0.040, P = 0.005). Patients with PF had a significantly longer hospital stay than non-PF patients (P = 0.005). High BMI and soft pancreas were significant risk factors for PF.
    The American surgeon 02/2012; 78(2):190-4. · 0.92 Impact Factor
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    ABSTRACT: We have found that liver metastasis from colorectal cancer (LM-CRC) can be easily detected by its fluorescence using a fluorescence imaging instrument (photodynamic eye (PDE)) in patients who have received an intravenous injection of indocyanine green (ICG). Therefore, our aim is to demonstrate the usefulness of PDE observation for hepatic resection in patients with LM-CRC. Between February and October 2009, seven patients who underwent hepatic resection for LM-CRC were enrolled. After previous ICG injection (0.1mg/kg/mL), PDE observation was performed to detect fine invisible residual tumors on the surface of the resected liver. All of the 46 resected LM-CRCs that had been pointed out preoperatively were easily detected by their fluorescence using PDE observation. Three of the seven patients underwent additional partial resection because fine invisible residual tumors were detected by their fluorescence using PDE observation. All of these patients who underwent additional resection had no recurrence of LMCRC on the surface of the resected liver after surgery. PDE observation is useful for detecting fine invisible residual tumors that cannot be revealed under visible light during hepatic resection in patients with LM-CRC and may reduce the incidence of local recurrence on the superficial parenchyma of the liver.
    Hepato-gastroenterology 01/2012; 59(113):90-2. · 0.77 Impact Factor
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    ABSTRACT: Primary hepatic leiomyosarcoma are rare tumors with less than 30 cases reported in the English literature. Non specific presentations and often diagnosis delayed until they reach a large size, is the norm with therapy leading to an often dismal prognosis. A 67-year-old man presented complaining of abdominal pain and a palpable abdominal mass since Jan 2010. Abdominal ultrasonography and abdominal computed tomography revealed a large tumor in the left lobe of the liver. Surgical exploration was undertaken and an extended left hepatectomy with extension onto the dorsal part of segment 8 preserving the MHV with partial resection of segment 6 was undertaken. The weight of the resected specimen was 1300 g of the left lobectomy specimen and 8 g of the segment 6 partial resection specimen. The pathology report confirmed the diagnosis of leiomyosarcoma. On immunohistochemistry, the tumor cells were positive for smooth muscle actin stain. The patient is on regular follow up and is currently 9 mo post resection with no evidence of recurrence. We report the case of a resected primary hepatic leiomyosarcoma and emphasize the need for a global database for these rare tumors to promote a better and broader understanding of this less understood subject.
    World journal of gastrointestinal oncology. 10/2011; 3(10):148-52.
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    ABSTRACT: We describe a rare case of epidermoid cyst arising in an intrapancreatic accessory spleen that presented as a cystic mass in the tail of the pancreas, and for which laparoscopic distal pancreatectomy was performed successfully. A 36-year-old woman with a cystic mass in the tail of the pancreas, which had been discovered incidentally at a medical checkup, was referred to our department for further examination. Endoscopic retrograde cholangiopancreatography, endoscopic ultrasonography and positron emission tomography demonstrated a multilocular cyst in the tail of the pancreas without any evidence of malignancy, although differential diagnosis was extremely difficult because of the neoplasm-like appearance of the lesion. Therefore, we performed laparoscopic distal pancreatectomy under a preoperative diagnosis of mucinous cystic neoplasm. Postoperative pathologic examination demonstrated an epidermoid cyst arising from a heterotopic spleen within the pancreas. This is the first report of successful laparoscopic distal pancreatectomy for an epidermoid cyst arising in an intrapancreatic accessory spleen. One virtually has no chance to diagnose an epidermoid cyst in an accessory spleen on the basis of preoperative diagnostic workup, and consequently the type of surgical resection (open vs. laparoscopic) would be conditioned by factors other than the clinical entity suspected at the preoperative period.
    Surgical laparoscopy, endoscopy & percutaneous techniques 10/2011; 21(5):e275-9. · 0.88 Impact Factor
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    ABSTRACT: To evaluate the influence of body mass index (BMI) on postoperative death in patients undergoing surgery for HCC. Three hundred forty-two patients were enrolled, and divided into three groups: Group A, BMI <22.5; Group B, BMI ≥22.5 to <25; Group C, BMI ≥25. Univariate and multivariate analyses of postoperative death were performed to compare BMI with clinical factors. Kaplan-Meier analysis and log rank test were used to compare such outcome in Groups A, B, and C. Kaplan-Meier analysis and log rank test revealed that Group A had a higher rate of postoperative death than Group B or C (P = 0.010). Univariate and multivariate analyses selected being underweight (Group B, C/Group A) (odds ratio, 1.829; 95% C.I., 1.091-3.068; P = 0.022) as one of the factors predictive of postoperative death, together with aspartate aminotransferase level (P = 0.042) and HCC growth pattern (P = 0.032). BMI is a simple but important predictor of postoperative death in patients undergoing surgery for HCC, and is able to classify such patients into three independent groups.
    Journal of Surgical Oncology 08/2011; 104(7):809-13. · 2.64 Impact Factor
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    ABSTRACT: Few studies have investigated grading of liver metastasis (GLM) in patients with liver metastases from colorectal cancer (LM-CRC). To screen for the most useful predictive factors in patients undergoing hepatic resection for LM-CRC, clinico-pathological factors were subjected to uni- and multivariate analyses. One hundred and twenty-five patients were evaluated retrospectively. Univariate analyses using clinico-laboratory factors demonstrated that nomogram, gender, CRP, albumin, number of hepatic resections, liver metastasis (H) and GLM were related to postoperative death. Multivariate analysis using these seven factors disclosed that albumin (OR, 6.949; 95% CI, 1.994-24.22; p=0.002), CRP (OR, 6.977; 95% CI, 1.937-25.14; p=0.003) and GLM (OR, 2.819; 95% CI, 1.082-7.346; p=0.034) were associated with postoperative death. Kaplan-Meier analysis and log rank test revealed that higher GLM (p<0.001) and CRP (p<0.001) were associated with a higher rate of postoperative death. GLM was able to divide the patients into three independent groups with significantly different total nomogram counts (p<0.001, Kruskal-Wallis test). GLM is able to classify patients with LM-CRC into three independent groups and offers reliable information for predicting postoperative death in such patients.
    Hepato-gastroenterology 07/2011; 59(113):54-8. · 0.77 Impact Factor

Publication Stats

302 Citations
116.15 Total Impact Points

Institutions

  • 1995–2014
    • Dokkyo Medical University
      • • Division of Surgical Gastroenterology
      • • Department of Surgery II
      • • Department of Surgical and Molecular Pathology
      Totigi, Tochigi, Japan
  • 1999
    • Jichi Medical University
      • Division of Clinical Pharmacology
      Totigi, Tochigi, Japan