The liver is the most common site of colorectal cancer metastasis(CRLM). The importance of how to treat CRLM has attracted attention from doctors world wide and specific academic organization and expect consensus has been established. Relative principals of treatment of CRLM also developed in China, for example, guideline of diagnosis and treatment of colorectal cancer liver metastasis(draft) and standard for diagnosis and treatment of colorectal cancer, which were established in 2008 and 2010, respectively. However, we found that the Chinese doctors still understand these treatment policies inadequately, and easily produce deviation on the treatment progress. Based on the problems of current CRLM treatment, we have some thoughts or suggestions as follows: (1)Promoting the core conception of CRLM treatment actively: surgery is the only method to achieve possible cure of the CRLM. (2) Evaluating the status of new adjuvant chemotherapy for CRLM dialectically. (3)Paying attention to multi-disciplinary team(MDT): MDT is the scientific treatment foundation of CRLM. (4)Changing the treatment conception of primary tumor of CRLM: radical resection of primary tumor is essential for the resectable CRLM.(5)Emphasizing the surgical treatment of CRLM combined with lung metastasis. (6)Do not neglect the safety of patients, when we emphasize the surgery is the optimal treatment of CRLM. These guides of treatment of CRLM will improve the outcomes of CRLM around the world, but we still need pay attention to above mentioned points in order to insure the standardization and scientification of CRLM therapy.
China ; Colorectal Neoplasms ; pathology ; therapy ; Combined Modality Therapy ; Humans ; Liver Neoplasms ; secondary ; therapy

OBJECTIVETo explore the risk factors and prevention strategies of post-operative complications in elderly patients with colorectal cancer.

METHODSData of 107 elderly patients (≥75 years) undergoing surgery for colorectal cancer were collected from January 2006 to December 2009 in the Department of Gastrointestinal Surgery, Peking University People's Hospital. POSSUM and E-POSSUM scoring systems were used to predict post-operative complications. ROC curve and observe/expect(O/E) were used to assess the validity of scoring systems. Logistic regression was used to evaluate the independent risk factors associated with post-operative complications of elderly patients with colorectal cancer.

RESULTSThe predictive complication rates of E-POSSUM and POSSUM in elderly patients with colorectal cancer were 13.9%-86.6%(average, 32.7%) and 19.1%-99.1% (average, 55.5%). The predictive validity of E-POSSUM was better than POSSUM(AUC of ROC: 0.862 vs. 0.576, O/E: 0.771 vs. 0.454), the former was closer to the actual complication rate(25.2%, 27/107). Concurrent diabetes mellitus(P=0.019) and rectal lesion(P=0.005) were independent risk factors associated with surgery-related post-operative complications. Anastomotic leakage was the most common surgery-related post-operative complications. Chronic obstructive pulmonary disease(P=0.026), ASA score(P=0.025), intestinal obstruction(P=0.037) and perforation(P=0.001) were independent risk factors associated with non-surgery-related post-operative complications. Pulmonary infection was the most common non-surgery-related post-operative complication.

CONCLUSIONSThe application of E-POSSUM scoring system can provide more accurate prediction of post-operative complications in elderly patients undergoing surgery for colorectal cancer. Positive interventions should be taken for high-risk patients to prevent post-operative complications.

Aged ; Colorectal Neoplasms ; surgery ; Female ; Humans ; Male ; Postoperative Complications ; etiology ; prevention & control ; Risk Factors

BACKGROUNDLaparoscopic Heller cardiomyotomy and Dor fundoplication is the surgical procedure of choice for esophageal achalasia. The aim of this study was to investigate the clinical outcome of laparoscopic Heller-Dor procedure in our initial series of 25 patients with achalasia.

METHODSBetween October 2003 and January 2006, a total of 25 patients with achalasia underwent laparoscopic Heller-Dor operation. Among them, 9 were male and 16 were female with an average age of (41.5 +/- 5.1) years (21-66). All the patients received upper gastrointestinal series (barium swallow), esophagogastroscopy, esophageal manometry to exclude esophageal carcinoma and to confirm the diagnosis, and 21 patients also had 24-hour ambulatory pH studies. All the patients were operated by laparoscopic modified Heller's myotomy with Dor fundoplication. In addition, 2 of them had combined laparoscopic cholecystectomy + excision of hepatic hemangioma and laparoscopic cholecystectomy, respectively.

RESULTSThe average operating time was (110.6 +/- 12.9) minutes (range, 60-180), operative blood loss averaged (18.6 +/- 7.1) ml (5-50), the median time to oral feeding was (1.6 +/- 0.4) days (1-4) and the median hospital stay was (12.6 +/- 1.2) days (10-20). There was no conversion to open surgery. Intraoperative mucosal perforation was encountered in six patients and was repaired in all of them by laparoscopic suture. All the patients had an uneventful recovery without postoperative complication. After a median follow-up of (10.6 +/- 7.2) months (1-27), 24 patients were asymptomatic and 1 had mild postoperative dysphagia.

CONCLUSIONSLaparoscopic Heller-Dor operation had the advantages of reduced compromise of the cardiopulmonary function, with less disruption of the supporting structures (phrenoesophageal membrane) of the antireflux mechanism, requiring simpler general anesthesia and providing excellent exposure permitting an easy fundoplication, less pain and reduced morbidity, shorter hospitalization and faster convalescence.

Adult ; Aged ; Digestive System Surgical Procedures ; methods ; Esophageal Achalasia ; surgery ; Esophagus ; surgery ; Female ; Follow-Up Studies ; Fundoplication ; methods ; Humans ; Laparoscopy ; methods ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods

PURPOSE: To compare the clinicopathological data and long-term survival of gastric cancer patients in China and Korea. MATERIALS AND METHODS: Patients who had undergone gastrectomy for gastric cancer between 1998 and 2009 in 2 high-volume institutions in both China (n=1,637) and Korea (n=2,231) were retrospectively evaluated. Clinicopathological variables, overall survival (OS), progression-free survival (PFS), and surgery-related complications were assessed for all patients and compared between the 2 institutions. RESULTS: Chinese patients included in the study were significantly older and had a significantly lower body mass index (BMI) than the Korean patients. Esophagogastric junction tumors were more frequent in Chinese patients. However, the number of patients with stage I gastric cancer, the number of harvested lymph nodes, and the number of total gastrectomies were significantly higher in the Korean population. Korean patients also presented with fewer undifferentiated tumors than Chinese patients. Furthermore, Korean patients had prolonged OS and PFS for stage III cancers only. BMI, tumor-node-metastasis (TNM) stage, tumor invasion, number of positive lymph nodes, and distant metastases were all independent factors affecting OS and PFS. CONCLUSIONS: Although China and Korea are neighboring Asian countries, the clinicopathological characteristics of Chinese patients are significantly different from those of Korean patients. Korean gastric cancer patients had longer OS and PFS than Chinese patients. Influencing factors included TNM stage, tumor invasion, and lymph node metastasis.
Asian Continental Ancestry Group ; Body Mass Index ; China* ; Disease-Free Survival ; Esophagogastric Junction ; Gastrectomy ; Humans ; Korea ; Lymph Nodes ; Neoplasm Metastasis ; Retrospective Studies ; Stomach Neoplasms*

OBJECTIVETo investigate the diagnosis and managements of hepatic artery complications in orthotopic liver transplantation.

METHODSThe clinical data of 107 consecutive orthotopic liver transplantation patients was reviewed retrospectively to assess the risk factors and the diagnosis and treatment of the vascular complications.

RESULTSThe incidence of the artery related complications in orthotopic liver transplantation was associated with the quality of the donor organ artery and the reconstruction way of donor-recipient artery intimately. The main hepatic artery related complications were hepatic artery thrombosis and stenosis. The incidence of the vascular complications was 6.54%, and the mortality rate was 85.7%.

CONCLUSIONSThe main influence factors of vascular complications were the quality of the donor organ artery and the reconstruction way of donor-recipient artery. The key steps of organ salvaging and the patients' life saving were early diagnosis and treatment of those complications.

Adolescent ; Adult ; Aged ; Constriction, Pathologic ; diagnosis ; therapy ; Female ; Hepatic Artery ; pathology ; surgery ; Humans ; Liver Transplantation ; adverse effects ; Male ; Middle Aged ; Retrospective Studies ; Thrombosis ; diagnosis ; therapy ; Transplantation, Homologous

OBJECTIVETo develop a new method to detect anti-Hantavirus IgG antibodies (HV IgG) based on quantum dots (QDs) and indirect immune technique.

METHODSThe carbodiimide crosslinking method was used to couple protein G and goat antihuman IgG on the surface of water-solubility QDs. The coverglass covered HV antigen was used as carrier, and QDs-PG-IgG conjugates was used as labeled second antibody to detect the HV-IgG in the serum samples. The detecting conditions were optimized.

RESULTSThe optimum reaction time, pH and goat antihuman IgG concentration for conjugating the QDs with goat antihuman IgG were 6.0, 2h, and 20 microg/ml, respectively. The optimum working dilution of QDs-PG-IgG conjugates was 1: 200. The detection limit of the serum samples was about 1: 1280 dilution.

CONCLUSIONThe method established in this study has been demonstrated to be a specific, sensitive, rapid test for detecting HV antibodies, laying the foundation of single molecule detection. The anti-fluorescence quenching ability of this method was significant improved.

Antibodies, Viral ; blood ; Fluorescence ; Hantavirus Infections ; diagnosis ; Humans ; Immunoassay ; methods ; Immunoglobulin G ; blood ; Quantum Dots

The goal of rectal cancer treatment should be to better protect organ function and improve patients' quality of life on the basis of ensuring radical resection. The current evidence has proved the superiority of perioperative chemoradiotherapy in reducing local recurrence and improving long-term survival. From the perspective of organ function protection, however, perioperative chemoradiotherapy has both disadvantages and advantages. Despite the great help in improving long-term outcomes, adverse reactions of chemoradiotherapy can aggravate defecation, urination and sexual dysfunction. Also, for patients with significant or complete remission, if the treatment strategy of local resection or close follow-up is selected, organ function can be preserved to the greatest extent. The key to the choice of treatment is to evaluate preoperatively whether pathological complete response is achieved. It should be kept in mind that preserving organ itself is not the same as protecting organ function. For patients who need perioperative chemoradiation, the optimal treatment methods should be chosen based on the patient's condition. Surgeons should fully evaluate organ function before operation, select the appropriate treatment strategy, pay special attention to the protection of important organs and nerves during surgeries, and carry out close postoperative follow-up and organ function rehabilitation as soon as possible, so as to reduce the incidence of dysfunction and the impact on the quality of life.
Chemoradiotherapy ; Humans ; Neoadjuvant Therapy ; Neoplasm Recurrence, Local ; Quality of Life ; Rectal Neoplasms/surgery* ; Treatment Outcome ; Watchful Waiting

Effective biomarkers for clinical usage of osteoarthritis are still limited. It was confirmed that C-terminal crosslinking telopeptide of type I collagen (CTX- II) was a specific marker reflecting degradation of articular cartilage. Detection of CTX- II could promptly reflect level of cartilage injury and degradation ,diagnose OA,predict its progress,monitor effects of drug treatment, thus, reflect the condition of osteoarthritis patient indirectly. Application of CTX- II focused mainly on in the early stage of OA and need together to detect with other biomarkers,in order to more accurately reflection of the pathological changes of OA,but the specific clinical significance of CTX- II results still need to improve further.
Biomarkers ; analysis ; Cartilage, Articular ; pathology ; Collagen Type II ; analysis ; Early Diagnosis ; Humans ; Osteoarthritis ; diagnosis ; Peptide Fragments ; analysis

OBJECTIVETo explore the clinicopathological relationship between metabolic syndrome (MS) and colorectal cancer.

METHODSThe clinical data of 507 cases of colorectal cancer (colorectal cancer group) and 277 cases of nontumorous diseases (control group) treated from January 2002 to March 2007 were collected to set up the database. The patients with colorectal carcinoma were divided into two groups according to the presence of MS: MS group and non-MS group. Some clinicopathological factors were analyzed and compared between the two groups, such as age, gender, blood pressure, tumor family history, hypertension and diabetes mellitus history, body mass index (BMI), glucose (GLU), triglyceride (TG), cholesterol (CHO), high density lipoprotein (HDL), lactate dehydrogenase (LDH), uric acid (UA), carcinoembryonic antigen (CEA) , CA19-9, the tumor position, pathological stage, and liver metastasis.

RESULTSThe morbidity rate of metabolic syndrome in the colorectal cancer group was significantly higher than that in control group. The rate of liver metastasis and tumor recurrence in the MS group was significantly higher than that in the non-MS group.

CONCLUSIONTo understand the relationship between MS and colorectal cancer is important for reducing the incidence of MS and colorectal cancer and the recurrence of the tumor and live metastasis.

Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; complications ; pathology ; Female ; Follow-Up Studies ; Humans ; Male ; Metabolic Syndrome ; complications ; Middle Aged ; Prognosis

OBJECTIVETo screen the clinicopathological factors of synchronous hepatic metastases from colorectal cancer for early diagnosis and therapy.

METHODSClinicopathological data of 367 cases with colorectal cancer from Jan. 2003 to Dec. 2006 in our department were collected to set up the database. All the patients were divided into two groups according to hepatic metastases or not. Clinicopathological factors were analyzed, such as age, sex, blood type, tumor family history, hepatitis and cirrhosis history, peritoneal or pelvic metastases, bowel obstruction, CEA, CA19-9, tumor localization and size, histological type, infiltration depth, lymph node metastases etc.

RESULTSOut of 367 colorectal cancer cases, there were 56 cases with synchronous hepatic metastases from colorectal cancer, accounting for 15.3%. The age, bowel obstruction, peritoneal or pelvic metastases, and tumor invasion depth were associated with the hepatic metastases. The primary tumor located in the right colon resulted in more right lobe hepatic metastases than those in the left lobe. The serum CEA level was associated with hepatic metastases. When serum CEA was more than 22.1 microg/L, the occurrence rate of hepatic metastases increased.

CONCLUSIONPeritoneal or pelvic metastases, bowel obstruction, age and serum CEA level are associated with synchronous hepatic metastases from colorectal cancer.

Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; pathology ; Female ; Humans ; Liver Neoplasms ; pathology ; secondary ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; Young Adult