Xiang-Yan Liu

Shandong University, Chi-nan-shih, Shandong Sheng, China

Are you Xiang-Yan Liu?

Claim your profile

Publications (24)31.26 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: microRNAs play important roles in numerous biological processes, including tumorigenesis, by modulating critical gene transcripts. In the present study, the role of microRNA‑802 (miR‑802) in lung cancer was investigated. The results of the quantitative polymerase chain reaction revealed that expression levels of miR‑802 were significantly upregulated in lung cancer tissues. In vitro experiments demonstrated that miR‑802 promoted cell proliferation in A549, NCI‑H358 and NCI‑H1299 cells. Furthermore, it was indicated that miR‑802 promoted the proliferation of lung carcinoma by targeting the tumor suppressor menin. Therefore, these results suggest a previously unknown miR‑802/menin molecular network controlling lung carcinoma development.
    Molecular Medicine Reports 07/2014; · 1.17 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: To investigate the association between v-Ki-ras2 Kirsten rat sarcoma viral oncogene homologue (KRAS) gene mutations and levels of human leucocyte antigen (HLA) class I antigen in primary lung tumours and metastatic lymph nodes of patients with non-small cell lung cancer (NSCLC). Patients with NSCLC undergoing tumour resection were enrolled. KRAS codon 12 mutations were analysed in normal lung and lymph node tissue, primary lung tumours and metastatic lymph nodes using polymerase chain reaction-restriction fragment length polymorphism analysis. HLA class I antigen immunostaining was examined using flow cytometry. A total of 65 patients participated in the study. All normal lung tissues had positive HLA class I antigen immunostaining. The majority of primary lung tumours (56/65) and all of the metastatic lymph nodes (31/31) had downregulated HLA class I antigen immunostaining. There was a positive correlation between downregulated HLA class I antigen in primary tumours and metastatic lymph nodes. There was a negative correlation between KRAS codon 12 mutations and the level of HLA class I antigen in primary and metastatic tumours. KRAS codon 12 mutations appear to be important in the downregulation of HLA class I antigen in NSCLC. Abnormal activation of the oncogenic KRAS pathway might provide a new treatment target for NSCLC.
    The Journal of international medical research 08/2013; · 0.96 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: In patients with intrathoracic neoplasms, low forced expiratory volume (FEV1) can preclude surgical treatment. Here, we present a case of a giant solitary fibroma of the pleura (SFTP) successfully treated by surgical removal in spite of low FEV1. A 39-year-old male patient was referred to our hospital with dyspnoea and chest distress. Computed tomography (CT) showed a large mass in the left chest. Spirometry showed FEV1 1.4 L (39% of the expected value). Computed tomography scan-guided transcutaneous aspiration biopsy was performed on the patient, and microscopic examination of the specimen revealed spindle tumor cells with a background of abundant collagen. Complete surgical resection was accomplished. The tumor was large and encapsulated. It measured 28 cm × 20 cm × 18 cm. The definitive diagnosis obtained by histopathology after resection was benign SFTP. The patient felt no dyspnoea at discharge. Surgical treatment of SFTP should be considered even in patients with a huge tumor and with increased post-operative risk.
    Contemporary Oncology / Wspólczesna Onkologia 01/2013; 17(3):324-6. · 0.21 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study is to compare and evaluate the therapeutic efficacy of Ivor-Lewis esophagectomy and one incision esophagectomy through left thoracic and above aortic arch anastomosis approach (left transthoracic esophagectomy) in order to choose a proper surgical procedure to treat middle esophageal carcinoma. Patients who underwent Ivor-Lewis esophagectomy (n=132) and who underwent left transthoracic esophagectomy (n=52) between January 2003 and June 2005 were included. The survival rate was calculated by Kaplan-Meier method and the prognostic risk factors were assessed by Cox regression analysis. Postoperative complications occurred in 43 patients (23.4%), with 31 patients (23.5%) and 12 patients (23.1%) in the Ivor-Lewis group and in the left transthoracic esophagectomy group, respectively. The overall 5-year survival rate was 36.4%, with 37.1% and 34.6% in the Ivor-Lewis group and in the left transthoracic esophagectomy group, respectively (p>0.05). In Cox regression analysis, T classification (HR=1.43, p=0.025) and N classification (HR=1.76, p=0.004) were the independent prognostic risk factors. Ivor-Lewis esophagectomy and left transthoracic esophagectomy are both feasible options to treat middle thoracic esophageal squamous cell carcinoma. Patients' individual condition is suggested to be taken into account when choosing the operative approach.
    Hepato-gastroenterology 10/2011; 59(115):738-41. · 0.77 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Metastasis-associated protein 1 (MTA1 protein) has been reported to be correlated with the biological behavior and prognosis of several malignant carcinomas. We hypothesized that stage I non-small cell lung cancer (NSCLC) patients with MTA1 protein overexpression would be more likely to have a poor prognosis. Therefore, we tested the expression of MTA1 protein in 60 stage I NSCLC and 30 paracarcinous normal lung tissues using the streptavidin-perosidase method. The Kaplan-Meier method was used to calculate the survival rate, and Cox regression analysis was performed to identify prognostic risk factors. MTA1 protein overexpression was detected in 22 stage I NSCLC tissues in this study. Tumor differentiation and tumor diameter were significantly associated with MTA1 protein overexpression, while not correlated with age, sex, pathological type or smoking status. The five-year survival rate of patients with MTA1 protein overexpression was significantly lower than that of those without expression (40.9% vs. 84.1%; P<0.001). The results of multivariate analysis confirmed that MTA1 protein overexpression was an independent prognostic factor (risk ratio=5.23, P=0.007). These findings demonstrated MTA1 might be a prognostic factor in NSCLC.
    Interactive Cardiovascular and Thoracic Surgery 10/2010; 12(2):166-9. · 1.11 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of the present study was to investigate the risk factors associated with lymph node metastatic recurrence in patients with N0 esophageal cancer after Ivor-Lewis esophagectomy based on the detection of Mucin 1 mRNA and vascular endothelial growth factor (VEGF) C mRNA. The subjects were 82 patients with pN0 esophageal cancer who underwent Ivor-Lewis esophagectomy with two-field lymph node dissection from January 2001 to January 2005. A total of 501 lymph nodes obtained from these patients were re-evaluated by reverse transcriptase-polymerase chain reaction (RT-PCR) to detect mucin l (MUC1) mRNA; VEGF-C mRNA was also detected in esophageal cancer issues by RT-PCR. The diagnosis of lymph node micrometastasis (LNMM) was based on the detection of MUC1 mRNA. The Kaplan-Meier method was used to calculate the survival rate and lymph nodal metastatic rate, the log-rank test was performed to compare the recurrence rate, and Cox regression multivariate analysis was performed to determine independent prognostic factors. MUC1 mRNA was detected in 29 lymph nodes from 23 patients, which accounted for 5.79% of all the 501 lymph nodes and 28.05% of all 82 patients, respectively. Vascular endothelial growth factor C mRNA was identified in esophageal cancer issues from 42 (51.22%) patients. The overall 3- and 5-year survival rates of 82 patients were 78.0 and 51.2%, respectively. First recurrence exhibiting lymph nodal metastasis was recognized in 37 patients (45.1%) in the first 3 years after operation. The lymph node metastatic rate in patients in the first 3 years after operation was significantly associated with T status (p < 0.05) and the lymph node metastatic rate of the patients with LNMM was significantly higher than that of the patients without LNMM (p < 0.01). The lymph node metastatic rate of the patients with VEGF-C mRNA expression in esophageal cancer tissues was significantly higher than that of the patients without VEGF-C mRNA expression (p < 0.01).The results of multivariate analysis confirmed that VEGF-C mRNA expression in esophageal cancer tissues, LNMM, and T status in patients with N0 esophageal cancer were independent relevant factors for 3-year lymph node metastatic recurrence after Ivor-Lewis esophagectomy. Vascular endothelial growth factor C mRNA expression in esophageal cancer tissues, LNMM, and T status in patients with N0 esophageal cancer were independent risk factors for 3-year lymph node metastatic recurrence after Ivor-Lewis esophagectomy. Adjunctive therapy might be beneficial in controlling the locoregional recurrence and elevated healing rates for certain patients.
    World Journal of Surgery 10/2010; 35(1):70-7. · 2.23 Impact Factor
  • Gang Chen, Zhou Wang, Xiang-yan Liu, Fan-ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: Brain-specific metastasis occurs frequently in lung cancer, and the mechanism is still unclear. The present study was designed to investigate the correlation between CXCR4 expression and brain-specific metastasis of non-small cell lung cancer. The brain metastatic tumors and lung cancer tissues from 32 patients with solitary brain metastasis of non-small cell lung cancer (M1 group), who underwent combined surgical treatment from January 1998 to June 2008, and 32 paired patients without distant metastasis (M0 group) and 30 patients with primary brain tumor, were examined by immunohistochemistry to detect the expression of CXCR4 protein. The difference of CXCR4 expression was compared by the McNemar χ(2) test or Fisher's exact test. Estimation of survival was calculated with the Kaplan-Meier method, and the statistical differences were analyzed with the log-rank test. Overexpression of CXCR4 protein was observed in 29 (90.6%) M1 non-small cell lung cancers and in all (100%) brain metastatic tumors, which was significantly higher than that in the paired M0 non-small cell lung cancer and the primary brain tumors, respectively (p = 0.000). The 3- and 5-year cumulative survival rates of patients with solitary brain metastasis of lung cancer were 21.9 and 12.5%, significantly lower than the corresponding survival rates of M0 group patients (p = 0.005). CXCR4 protein was highly overexpressed in M1 non-small cell lung cancer and brain metastatic tumors, which indicated that high-level CXCR4 expression correlates with brain-specific metastasis of non-small cell lung cancer.
    World Journal of Surgery 10/2010; 35(1):56-61. · 2.23 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study was to evaluate the therapeutic efficacy of two surgical procedures used to treat middle thoracic esophageal squamous cell carcinoma and compare the results. A total of 167 patients with middle thoracic esophageal squamous cell carcinoma were included in the study, including 102 patients who underwent Ivor-Lewis esophagectomy and another 65 who underwent dual-incision esophagectomy through the left chest and neck (Dual-incision). The Kaplan-Meier method was used to calculate the survival rate, and Cox regression analysis was performed to identify prognostic risk factors. Perioperative complications occurred in 35 patients (21%). The incidence rate of recurrent laryngeal nerve injury and anastomotic leakage was higher in the Dual-incision group (p < 0.05), and the incidence rate of gastric retention was higher in the Ivor-Lewis group. However, there were no statistically significant differences. The 3-year local recurrence rate was 37.3% in the Ivor-Lewis group and 40% in the Dual-incision group (p > 0.05). The overall 5-year survival rate was 34.6%; the rates of the Ivor-Lewis group and the Dual-incision group were 36.0 and 32.3%, respectively (p > 0.05). The Cox analysis indicated that the pTNM staging was an independent prognostic risk factor (p = 0.00, hazard ratio = 2.69). Both Ivor-Lewis esophagectomy and Dual-incision esophagectomy through the left chest and neck are options for treating middle thoracic esophageal squamous cell carcinoma. It is suggested that a patient's individual condition be taken into account when choosing the operative approach.
    World Journal of Surgery 02/2010; 34(2):272-6. · 2.23 Impact Factor
  • Xiang-Yan Liu, Fan-Ying Liu, Zhou Wang, Gang Chen
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of the present study was to investigate the complications, long-term survival, and management lessons learned after surgical resection for patients with primary tumors of the trachea and carina and locally advanced lung cancer directly infiltrating the carina. A retrospective study was performed by our department on 32 patients undergoing surgical resection for primary tumors of the trachea and carina and locally advanced lung cancer directly infiltrating the carina between June 1986 and June 2003. Various surgical modalities were performed according to the tumor location and extent: tracheal resection in 10 cases, carinal resection and reconstruction in 4 cases, carinal right upper lobectomy in 8 cases, carinal pneumonectomy in 4 cases, and partial tangential resection of the tracheal wall in 6 cases. Cardiopulmonary bypass was required in two patients for nearly complete obstruction of the trachea. Resected tumors included six distinct histologic types. Perioperative mortality was 9.4% (3/32). Major complications occurred in 31.3% (10/32) of the patients. The overall 1-, 3-, and 5-year survival rates were 87.5%, 56.3%, and 40.6%, respectively. Patients with primary tracheal and carinal tumors experienced a 5-year survival of 55.0% compared to 16.7% for those with locally advanced lung cancer directly infiltrating the carina (P < 0.05). Surgical resection is the most effective treatment of choice for primary tumors of the trachea and carina. With careful patient selection and meticulous surgical and anesthesia techniques, the operative mortality and complications are acceptable, and long-term survival can be achieved.
    World Journal of Surgery 10/2009; 33(12):2593-8. · 2.23 Impact Factor
  • Gang Chen, Xiang-Yan Liu, Zhou Wang, Fan-Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: Mediastinal lymph node metastasis (N2) is a key prognostic factor for lung carcinoma. This study was undertaken to investigate the relationship between vascular endothelial growth factor C (VEGF-C) expression and postoperative early recurrence in patients with N2 non-small-cell lung cancer. Cancer tissue samples from 92 patients with pN2 non-small-cell lung cancer and benign lung disease tissues samples from 30 patients were examined by reverse transcription polymerase chain reaction (RT-PCR) and immunohistochemistry assays to detect VEGF-C expression. The difference of VEGF-C expression was compared by chi(2) test. All patients with N2 disease were evaluated within 1 year after surgery to detect early tumour recurrence. Cox regression analysis was performed to determine the risk factors of postoperative early recurrence of N2 lung cancer. VEGF-C mRNA expression was observed in 64 (70%) pN2 lung cancer tissues, but was not found in benign lung disease tissues. Early recurrence occurred in 43 patients (47%) at 1 year after operation. The main pattern was distant recurrence, and the most frequent sites were the brain and lung. The early recurrence rate in patients with positive VEGF-C expression was significantly higher than that of those with negative VEGF-C expression (P=0.006, log-rank test). Cox regression analysis revealed that positive VEGF-C expression in tumours (hazard ratio (HR)=2.523, P=0.037) was an independent risk factor of postoperative early recurrence of N2 lung cancer. VEGF-C expression was high in N2 lung cancer, with significant correlation to postoperative early recurrence. About one-half of the patients with N2 non-small-cell lung cancer would develop recurrence disease within 1 year after surgery, frequently with mediastinal nodes, brain or lung metastases. VEGF-C might be a predictor of postoperative early recurrence in patients with N2 non-small-cell lung cancer.
    European journal of cardio-thoracic surgery: official journal of the European Association for Cardio-thoracic Surgery 09/2009; 37(3):546-51. · 2.40 Impact Factor
  • Shu-Hai Li, Zhou Wang, Xiang-Yan Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of the present study was to investigate the expression of metastasis-associated protein 1 (MTA1) and its relationship to the disease-free interval after resection of pathologic N0 (pN0) esophageal squamous cell cancer (ESCC). The subjects were 90 patients who successfully underwent complete resection of pN0 ESCC between May 2001 and May 2003. Immunohistochemical staining for MTA1 protein was performed using the avidin-biotin peroxidase complex method. Log-rank test was performed to compare the disease-free interval, and Cox regression multivariate analysis was performed to judge independent prognostic factors. Metastasis-associated protein 1 overexpression was detected in 40 esophageal cancer tissues. Disease-free interval was significantly associated with MTA1 protein overexpression (p = 0.015). The overall 5-year survival rate was 45.6%, the 5-year survival rate of patients with MTA1 protein overexpression was significantly lower than that of those without overexpression (25.0 versus 62.0%; p < 0.001). The results of multivariate analysis confirmed that T status and MTA1 protein overexpression were independent prognostic factors. Metastasis-associated protein 1 overexpression was detected in pN0 ESCC and was significantly correlated with shorter disease-free interval. T status and MTA1 protein overexpression were both independent prognostic factors. These findings suggested MTA1 might be a predictor of relapsing phenotype and a prognostic factor in esophageal cancer.
    World Journal of Surgery 08/2009; 33(9):1876-81. · 2.23 Impact Factor
  • Fan-ying Liu, Xiang-yan Liu, Zhou Wang, Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: To investigate and evaluate the clinical features, diagnostic methods, surgical management of trachea tumors in order to improve patients outcome. Clinical data of 32 patients with trachea tumors surgically treated from June 1986 to June 2005 were retrospectively analyzed. There were 22 male and 10 female patients. The age ranged from 14 to 63 years old with a median of 48 years old. The surgical procedures performed were resection and reconstruction of trachea in 10 cases, right or left pneumonectomy and carinal resection and reconstruction in 8 cases, right sleeve upper lobectomy, carinal resection and reconstruction of trachea and carina in 8 cases, and carina resection and reconstruction with tumor removal through tracheal windows 6 cases. The tracheal defect was repaired with a Teflon flap in two patients. Cardiopulmonary bypass was used in 2 patients during surgery. The histological examination of resected lesions revealed squamous cell carcinoma in 19 cases, adenoid cystic carcinoma in 8 cases, adenocarcinoma in 2 cases, carcinoid in 2 cases, leiomyosarcoma in 1 case and adenoma in 1 case. One case had infection of thoracic cavity and 3 cases experienced temporary cardiac arrhythmia. There was no operative death. The follow-up periods were from 5 months to 3 years. The 1, 2 and 3 year survival rates were 93.7%, 59.4% and 50.0% respectively. Squamous cell carcinoma adenoid cystic carcinoma are the most common in trachea tumors. Preoperative bronchoscope examination and chest CT scan can provide valuable diagnostic data. Proper choice of surgical procedure is important for improved patients' outcome.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 07/2009; 47(14):1055-7.
  • Gang Chen, Zhou Wang, Xiang-Yan Liu, Fan-Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: Even if complete resection was performed, some patients with esophageal carcinoma still develop tumor recurrence. This study was undertaken to evaluate the effectiveness of adjuvant radiotherapy after modified Ivor-Lewis esophagectomy on preventing lymph node recurrence of the mid-thoracic esophageal carcinoma. Three hundred sixty-six patients with mid-thoracic esophageal squamous cell carcinoma who underwent modified Ivor-Lewis esophagectomy between June 1999 and June 2004 were retrospectively reviewed. All patients were followed up within 3 years after surgery to detect lymph node recurrence. The Kaplan-Meier method was used to calculate the recurrence rate, and Cox regression analysis was performed to identify risk factors of lymph node recurrence. The overall 3-year and 5-year survival rates in all patients were 57.9% and 43.7%, respectively. Lymph node recurrence occurred in 105 patients (28.7%) within 3 years after surgery. The lymph node recurrence rate of patients with postoperative adjuvant radiotherapy was significantly lower than that of those with adjuvant chemotherapy (p = 0.03) and those without adjuvant therapy (p < 0.01). Cox regression analysis showed that T stage, N status, and postoperative adjuvant radiotherapy were independent relevant factors for lymph node recurrence. Postoperative adjuvant radiotherapy after modified Ivor-Lewis esophagectomy might prevent lymph node recurrence of mid-thoracic esophageal carcinoma.
    The Annals of thoracic surgery 06/2009; 87(6):1697-702. · 3.45 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: There are few reports about abdominal lymph node metastasis of mid thoracic esophageal carcinoma. This study was designed to explore the pattern of abdominal lymph node metastasis in patients with mid thoracic esophageal squamous cell carcinoma and to evaluate the prognostic factors. The complete data of 368 patients with mid thoracic esophageal squamous cell carcinoma, who underwent modified Ivor-Lewis esophagectomy with two-field lymphadenectomy from January 1998 to January 2003, were reviewed. Survival rate was calculated by Kaplan-Meier method. Cox regression analysis was performed to identify risk prognostic factors. Abdominal lymph node metastasis occurred in 58 (15.8%) patients: 34.5% (20/58) of them were stage T1 and T2. Skipping abdominal node metastasis was recognized in 13.8% (8/58) patients: all were stage T1 and T2. The overall 5-year survival rate of patients with abdominal lymph node metastasis (10.3%) was lower than that of those with thoracic node metastasis (18.3%). The prognosis of patients with distant abdominal lymph node metastasis was poor, and no one could survive more than 5 years. Cox regression analysis showed that five or more positive nodes and distant abdominal node metastasis were independent risk factors of patients with abdominal lymph node metastasis. Abdominal lymph node metastasis in patients with mid thoracic esophageal squamous cell carcinoma occurred frequently, and the surgery favorable for extensive abdominal lymph node dissection should be selected. The prognosis of patients with abdominal lymph node metastasis was poor, especially those with more positive nodes and distant abdominal node metastasis.
    World Journal of Surgery 01/2009; 33(2):278-83. · 2.23 Impact Factor
  • Zhou Wang, Xiang-Yan Liu, Fan-Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: To investigate the patterns of abdominal lymph node metastasis in patients with the middle thoracic esophageal squamous cell carcinoma and to evaluate the prognostic factors. Three hundred and sixty-eight patients with the middle thoracic esophageal squamous cell carcinoma from January 1998 to January 2003 were reviewed. There were 289 male and 79 female patients. The age ranged from 38 to 79 years, with a mean of 56 years. Preoperative clinical stage was stage I to III, and all patients underwent Ivor-Lewis esophagectomy with two-field lymphadenectomy. Follow-up was completed for all patients with a mean time of 68 months. Survival rate was calculated by Kaplan-Meier method. COX regression analysis was performed to identify risk prognostic factors. Abdominal lymph node metastasis occurred in 58 (15.8%) patients, with 36.2% (21/58) of them being in stage T1 or T2. Skipping abdominal lymph node metastasis was recognized in 13.8% (8/58) patients, with all of them being in stage T1 or T2. The overall 5-year survival rate of patients with abdominal lymph node metastasis (10.3%) was lower than that of those with thoracic lymph node metastasis (18.3%). The prognosis of patients with distant abdominal lymph node metastasis was bad, and nobody could survive over 5 years.COX analysis showed that 5 or more positive nodes and distant abdominal node metastasis were independent risk factors of patients with abdominal lymph node metastasis. Abdominal lymph node metastasis in patients with the middle thoracic esophageal squamous cell carcinoma occurs frequently, and the surgery favorable for extensive abdominal lymph node dissection should be selected. The prognosis of patients with abdominal lymph node metastasis is poor, especially those with more positive nodes and distant abdominal node metastasis.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 01/2009; 46(23):1800-3.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: To control the postoperative local recurrence is one of the critical factors to improve prognosis of patients with esophageal carcinoma. The aim of this study is to evaluate the effectiveness of modified Ivor-Lewis esophagectomy plus adjuvant radiotherapy for local control of stage IIA squamous cell carcinoma in the mid-thoracic esophagus. One hundred and twenty-five patients with stage IIA mid-thoracic esophageal squamous cell carcinoma who underwent modified Ivor-Lewis esophagectomy between June 1999 and June 2002 were included in the retrospective analysis. All the patients were evaluated within 3 years after surgery to detect tumor recurrence. Kaplan-Meier method was used to calculate the survival rate and logistic regression analysis was performed to identify risk factors of locoregional recurrence. The overall 3-year and 5-year survival rate in all patients was 58.4% and 43.2%, respectively. Tumor recurrence occurred in 61 patients (48.8%) within 3 years after operation. The median disease-free interval was 12.6 months. Thirty-three patients (26.4%) developed locoregional recurrence, 23 patients (18.4%) developed distant recurrence and 5 patients (4.0%) developed locoregional and distant recurrence simultaneously. Locoregional recurrence rate of patients with postoperative radiotherapy was significantly lower than that of those without postoperative radiotherapy (p<0.05). Logistic regression analysis showed that adjuvant radiotherapy (p=0.007) was an independent risk factor for tumor locoregional recurrence. Cox regression analysis showed that locoregional recurrence but not adjuvant radiotherapy was a relevant prognostic factor of patients with stage IIA esophageal cancer. Modified Ivor-Lewis esophagectomy with two-field lymph node dissection plus adjuvant radiotherapy might be an effective strategy to achieve local control of stage IIA mid-thoracic esophageal squamous cell carcinoma.
    European journal of cardio-thoracic surgery: official journal of the European Association for Cardio-thoracic Surgery 10/2008; 35(1):1-7. · 2.40 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: To investigate the local control of radiotherapy following Ivor-Lewis esophagectomy in the patients with stage IIA middle-third thoracic esophageal cancer. From June 1999 to June 2002, 125 patients with stage IIA squamous cell carcinoma of the middle-third thoracic esophagus were treated with Ivor-Lewis esophagectomy with two-fields lymphadenectomy. The survival rate was calculated by Kaplan-meier method and the difference of recurrence rate compared by chi(2) test. The 3-year and 5-year survival rates were 58.4% and 43.2% in this group, respectively. Tumor recurrence occurred in 61 of the 125 patients (48.8%) within 3 years after operation. Of all cases of recurrence, 38 patients (30.4%) developed locoregional recurrence (including 5 patients with locoregional and hematogenous recurrence simultaneously). The locoregional recurrence rate of patients who received postoperative radiotherapy (20.3%) was significantly lower than that of both the group who received adjunctive chemotherapy (40.6%) and the group without adjunctive therapy (41.4%) (P < 0.05). About half of the patients would develop recurrence disease within 3 years after Ivor-Lewis esophagectomy with two-fields lymph-adenectomy. Radiotherapy following Ivor-Lewis esophagectomy is an effective strategy to control local recurrence of the stage II A middle-third thoracic esophageal cancer.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 08/2008; 46(14):1048-50.
  • Shu-Hai Li, Zhou Wang, Xiang-Yan Liu, Fan-Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of the present study was to investigate the prevalence of lymph node micrometastasis (LNMM) based on the detection of MUC1 mRNA, and assess the impact of these micrometastases on prognosis after resection of pathologic N0 (pN0) non-small cell lung cancer (NSCLC). The subjects were 89 patients who underwent complete resection of pN0 NSCLC at our department between January 2000 and January 2002. All lymph nodes (402 stations) obtained from these patients were re-evaluated by reverse transcriptase-polymerase chain reaction (RT-PCR) to detect MUC1 mRNA. The diagnosis of LNMM was based on the detection of MUC1 mRNA. The Kaplan-Meier method was used to calculate the survival rate, and Cox regression multivariate analysis was performed to determine independent prognostic factors. Micrometastases were detected in 36 lymph node stations (9.0%) from 21 patients (23.6%). The TNM staging of these 21 patients was upregulated from stage IA-IIB to stage IIIA. The 5-year survival rate of patients with LNMM was significantly lower than that of patients without LNMM (23.8% versus 44.1%; p < 0.05). The results of multivariate analysis confirmed that T status, histology, and LNMM were independent prognostic factors. The prevalence of LNMM in patients with pN0 NSCLC was 23.6% (21/89). T status, histology, and LNMM were independent prognostic factors.
    World Journal of Surgery 03/2008; 32(8):1651-6. · 2.23 Impact Factor
  • Gang Chen, Zhou Wang, Xiang-Yan Liu, Fan-Ying Liu
    [Show abstract] [Hide abstract]
    ABSTRACT: Despite increasingly radical surgery for esophageal carcinoma, many patients still develop tumor recurrence after operation. This study was designed to evaluate the recurrence pattern of squamous cell carcinoma in the middle thoracic esophagus after modified Ivor-Lewis esophagectomy. We retrospectively reviewed data of 196 patients who underwent modified Ivor-Lewis esophagectomy with two-field lymph node dissection from January 1997 to January 2001. Recurrence was classified as locoregional or hematogenous recurrence. Logistic regression analysis was performed to identify risk factors of postoperative recurrence. The overall 3-year and 5-year survival rates in all patients were 53% and 31%, respectively. Recurrence was recognized in 96 patients (48.9%) in the 3 years after operation. The median time to tumor recurrence was 12.2 months. The pattern of recurrence was locoregional in 52 patients (mainly mediastinal in 41, single cervical/supraclavicular in 8), hematogenous in 44 patients (simultaneous locoregional and hematogenous in 10; mainly liver, bone, or lung in 39). The locoregional recurrence rate was significantly lower in patients with postoperative radiotherapy than that in patients without postoperative radiotherapy (p = 0.02). Logistic regression analysis showed that T3 (p = 0.032), N1 (p = 0.003), and postoperative radiotherapy (p = 0.022) were independent risk factors for tumor locoregional recurrence. About one half of the patients would develop recurrent disease within 3 years after modified Ivor-Lewis esophagectomy with two-field lymph node dissection, and most of them had mediastinal lymph node, liver, bone, or lung metastasis. Postoperative radiotherapy was beneficial in the control of locoregional recurrence.
    World Journal of Surgery 05/2007; 31(5):1107-14. · 2.23 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: To investigate the prevalence of lymph node micrometastasis (LNMM) on the basis of the detection of MUC1 mRNA, and assess the impact of these micrometastases on disease-free interval after resection of pathologic N0 (pN0) esophageal squamous cell cancer (ESCC). The subjects were 93 patients who underwent complete resection of pN0 ESCC at our department between January 1999 and January 2001. All lymph nodes (426 stations) obtained from these patients were reevaluated by reverse transcription-polymerase chain reaction to detect MUC1 mRNA. The diagnosis of LNMM was based on the detection of MUC1 mRNA. A log-rank test was performed to compare the disease-free interval, and Cox regression multivariate analysis was performed to determine the independent prognostic factors. Micrometastasis was detected in 40 lymph node stations (9.4%) from 32 patients (34.4%). Disease-free interval was significantly associated with LNMM (P = 0.0138). The 5-year survival rate of patients with LNMM was significantly lower than that of those without LNMM (P = 0.004). The results of multivariate analysis confirmed that T status and LNMM were independent prognostic factors. The prevalence of LNMM in patients with pN0 ESCC was 34.4% (32/93). Thus, LNMM was significantly associated with the disease-free interval. T status and LNMM were both independent prognostic factors.
    Surgery Today 02/2007; 37(12):1047-52. · 0.96 Impact Factor