Clinical efficacy of laparoscopic versus open hepatectomy for the treatment of hepatocellular carcinoma / 国际外科学杂志

Objective To evaluate the clinical efficacy of laparoscopic hepatectomy and open hepatectomy for the treatment of hepatocellular carcinoma.Methods Two hundred and sixteen patients with hepatocellular carcinoma who were admitted to the Chongqing Three Gorges Central Hospital from October 2014 to December 2017 were enrolled in this study,52 patients undergoing laparoscopic hepatectomy (laparoscopic group) and 164 patients undergoing open hepatectomy,52 patients (open group) were matched by propensity score matching method to reduce confounding bias.The operation time,tumor sizes,resection margin,time of hepatic inflow occlusion,volume of blood loss,blood transfusion,postoperative complication rate,drainage tube removal time,postoperative anal exhaust time,duration of postoperative hospital stay and survival rates were compared.T test was used for the measurement data in line with the normal distribution,and the results were represented by (Mean ± SD) tandard deviation;Wilcoxon test was used for the measurement data in the skewed distribution,and M(range) was used for represention,and the chi-square test or Fisher's exact probability test was used for the counting data.Kaplan-meier method was used to describe the survival curve,and log-rank test was used to compare the survival rate.Cox regression model was used to evaluate the risk factors affecting the survival of patients with hepatocellular carcinoma.Results All patients were recovered with no perioperative death.The operation time,tumor sizes,resection margin,time of hepatic inflow occlusion were (226.1 ±67.5) min,(49.2 ± 15.5) mm,(14.3 ± 4.9) mm,(34.1±18.1) min and (227.0 ±55.7) min,(49.4 ±16.6) mm,(14.6 ±4.0) mm,(38.2 ± 16.1) min,with no significant differences between the two groups(P ＞ 0.05).The volume of blood loss,blood transfusion,postoperative complication rate,drainage tube removal time,postoperative anal exhaust time,duration of postoperative hospital stay were 325(50-1 200) ml,11.5％,15.4％,(4.8 ±0.9) d,3(2-5) d,(11.9± 3.5) d and 375(100-2 000) ml,19.2％,23.1％,(5.9 ±0.8) d,4(3-5) d,(14.9 ±6.2) d,with significant differences between the 2 groups(P ＜0.05).1-and 3-year overall survival rates were 93.4％,83.7％ and 1-and 3-year disease-free survival rates were 87.7％,71.2％ in laparoscopic group;1-and 3-year overall survival rates were 94.1％,82.5％ and 1-and 3-year disease-free survival rates were 88.3％,70.8％ in open group,with no significant differences between the 2 groups(P ＞0.05).Cox regression analysis revealed that ICG R15,tumor size and tumor differentiation were independent risk factors of survival (hazard ratio ＞ 1,P ＜ 0.005).Conclusions Application of Laparoscopic hepatectomy for the treatment of selective hepatocellular carcinoma patients has better short-term efficacy than open hepatectomy and long-term efficacy is comparably.The propensity score matching can reduce confounding bias and have value for clinical research.

Validation and target gene screening of hsa-miR-205 in lung squamous cell carcinoma / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Lung cancers are classified as squamous cell carcinoma (SQ), adenocarcinoma (AC) and small cell lung carcinoma (SCLC). SQ is the major subtype of lung cancer. Currently, there are no targeted therapies for SQ due to lack of understanding its driving oncogenes. In this study, we validated an SQ specific biomarker hsa-miR-205 in Chinese patients with lung cancer and screened its candidate target genes for further functional studies to enrich knowledge in SQ target therapies.</p><p><b>METHODS</b>Quantitative reverse-transcription PCR (quantitative RT-PCR) was performed on 197 macro-dissected (cancerous cells >75%) surgical lung tissues (45 SQ, 44 AC, 54 SCLC and 54 adjacent normal tissues) to validate the expression profiles of miR-205. Furthermore, the targets of this microRNA were predicted through the gateway miRecords and mapped to lung cancer-associated pathways using the KEGG (Kyoto Encyclopedia of Genes and Genomes) database. Then quantitative RT-PCR was performed on an independent cohort of 44 snap-frozen surgical lung tissues to concurrently assess the expression profiles of miR-205 and its 52 putative targeted genes.</p><p><b>RESULTS</b>MicroRNA-205 yielded high diagnostic accuracy in discriminating SQ from AC with an area under the curve (AUC) of 0.985, and discriminating SQ from SCLC with an AUC of 0.978 in formalin-fixed paraffin-embedded (FFPE) surgical lung tissues. Predicted targets of miR-205 were associated with 52 key members of lung cancer signaling pathways. Ten target genes (ACSL1, AXIN2, CACNA2D2, FOXO3, PPP1R3A, PRKAG3, RUNX1, SMAD4, STK3 and TBL1XR1) were significantly down-regulated in SQ and had a strong negative correlation with miR-205, while one target gene (CDH3) was up-regulated in SQ and exhibited a strong positive correlation with miR-205.</p><p><b>CONCLUSIONS</b>We confirmed the high diagnostic accuracy of miR-205 in discriminating SQ from AC and SCLC in Chinese patients. Moreover, we identified 11 significant target genes of miR-205 which could be used for further functional studies as the basis for the development of SQ targeted therapies.</p>

Impact of palliative radiotherapy to the prognosis of patients with stage Ⅳ non-small cell lung cancer / 中国综合临床

Objective To investigate the impact of palliative radiotherapy to the prognosis of patients with stage Ⅳ non-small cell lung cancer (NSCLC).Methods Two hundred and forty-four cases of stage Ⅳ NSCLC were collected from our hospital.The study group (n =129) received the treatment of primary tumor and metastases palliative radiotherapy after chemotherapy.The control group (n =115) received only chemotherapy.Followed-up and compared 1-year and 2-year survival rate of the patients,and explored the factors affecting palliative radiotherapy.Results The 129 patients in the study group were followed up for 2 years,and 16 patients survived and 110 patients died.Three patients were lost to follow-up.The median survival time was 8 months.1-year and 2-year survival rates was 29.46％ (38/129) and 12.40％ (16/129) respectively.In the control group,7 patients survived,and 106 patients died.Two patients were lost to follow up.The median survival time was 6 months.1-year and 2-year survival rates was 11.30％ (13/115) and 6.09％ (7/115)respectively.Survival rates between the two groups were significantly different (x2 =8.451,P =0.014)Univariate regression analysis found that factors affecting the prognosis of stage Ⅳ NSCLC were KPS score (x2 =5.057,P =0.031),occurrence of brain metastases (x2 =4.781,P =0.029),number of organs of metastasis (x2 =6.341,P =0.010),and the primary stove radiotherapy dose (x2 =5.893,P =0.015) ; Cox regression model analysis showed that the number of organs of metastasis (HR =1.719,95％ CI 为 1.172-3.126,P =0.008),the primary focal radiotherapy dose (HR =1.560,95％ CI 为 1.082-2.761,P =0.022) were independent prognostic factors.Conclusion Palliative radiotherapy plays a role of prolonging survival time in the treatment of Ⅳ NSCLC.In palliative radiotherapy,we should pay attention to the control of the primary tumor and metastases radiotherapy dose,therefore prolonging the survival time of patients.