Optimized total thoracoscopic and laparoscopic esophagectomy for esophageal cancer.

BACKGROUND: Total thoracoscopic and laparoscopic esophagectomy (TLE) has attracted attention with the advantage of better operative field and minimal wound for the esophageal cancer. However, various severe complications are also reported during the TLE such as cervical anastomotic leakage, chylothorax, and tracheal injury. The aim of this study was to introduce a new optimized TLE procedure for the esophageal cancer and assess its safety and clinical effects. METHODS: We retrospectively collected the clinical data of 30 patients with esophageal cancer who underwent optimized TLE procedures between January 2014 and December 2014. The optimized TLE procedures mainly include as follows: (1) 50 ml of sesame oil-milk mixture (1:1) is injected via gastric tube after endotracheal intubation; (2) patients are intubated with a single lumen endotracheal tube; (3) patients were positioned at 150° in the left prone position rather than lateral decubitus position; and (4) duodenal feeding tube was not placed intraoperatively and however triple lumen nasojejunal feeding tube was placed on the second postoperative day under imaging guidance. Operation time, amount of blood loss, number of dissected nodes, length of hospital stays, and complications were recorded. RESULTS: The mean operation time of the optimized TLE group was 202.13 ± 13.74 min. The mean visible blood loss of the optimized TLE group was 300.00 ± 120.12 ml. The postoperative hospital stays in the optimized TLE group were 16.27 ± 4.51 days. The number of dissected nodes in the optimized TLE group was 13.57 ± 2.76. The postoperative complications for the optimized TLE procedure were seen in one case (3.3%). CONCLUSIONS: The method of optimized TLE is an effective, reliable, and safe procedure for the treatment of esophageal cancer, which provide favorable outcomes in terms of operation time, blood loss, length of hospital stays, the number the dissected nodes, and reduced incidence of postoperative complications compared to previous literatures. Further studies with a large number of samples are warranted.

Cytotoxic T lymphocyte-associated antigen-4 +49A>G polymorphism and the risk of non-small cell lung cancer in a Chinese population.

BACKGROUND: CTLA-4 is a potent immunoregulatory molecule and plays a pivotal role in the negative regulation of T-cell proliferation and activation. Previously, the association between CTLA-4 +49A>G polymorphism and the risk of NSCLC has been investigated in several studies, however, their results were inconsistent. Therefore, we aimed to investigated the association between CTLA-4 +49A>G polymorphism and the risk of NSCLC in a Chinese population. METHODS: We recruited 231 NSCLC patients and 250 healthy controls in the present case-control study. PCR-RFLP was used to analyze the polymorphism of CTLA-4. The chi-squared test was used to examine differences between NSCLC patients and controls. The odds ratio (OR) and its 95% confidence interval (95% CI) were obtained by logistic regression methodology to determine correlations between the CTLA-4 polymorphism and the incidence of NSCLC. RESULTS: When the AA genotype was used as the reference group, the GG genotype was significantly associated with increased risk for NSCLC (OR=2.181, 95% CI: 1.244-5.198; P=0.007), however, the AG genotype was not significantly associated with increased risk for NSCLC (OR=2.018, 95% CI: 0.826-3.881; P=0.099). Under the dominant model of inheritance, the AG+GG genotype was significantly associated with increased risk for NSCLC (OR=3.271, 95% CI: 1.827-4.559; P=0.015). In addition, the G allele had a 2.754-fold higher risk of NSCLC in comparison with the A allele (OR=2.754, 95% CI: 1.365-6.891, P=0.005). CONCLUSIONS: Our data provided evidence that the CTLA-4 +49A>G polymorphism is associated with increased risk of NSLCL in Chinese population.