The aim of this study was to elucidate the patterns of calorie support during the immediate postoperative period following a gastrectomy in gastric cancer patients.
The clinicopathologic characteristics and nutritional parameters, including the actual infused amount of calories during the immediate postoperative period, were retrospectively collected and analyzed, This was data from a total 1,390 cases out of 1,404 patients who underwent curative gastrectomy at Samsung Medical Center, from Jan. 1 2016 through Dec. 31, 2016.
The actual infused amount of calories during the immediate postoperative period (the first three days following surgery) was only 41.6% of the recommended average intake of calories, which was significantly lower (759.8±139.4 kcal/day vs 1,825.7±251.6 kcal/day, respectively). The target calories supply per unit body weight was 30 kcal/kg. According to the operative method, the average infused amount of calories was lower in open gastrectomy compared to when utilizing the minimal invasive methods (laparoscopic assisted or robot assisted gastrectomy) (742.11 kcal/day:11.7 kcal/kg vs 792.95 kacl/day:12.8 kcal/kg or 791.43 kcal/day:12.8 kcal/kg, respectively). In regards to the operative type, the average infused amount of calories was higher in subtotal gastrectomy compared to that in total gastrectomy (732.1 kcal/day:12.23 kcal/kg vs 689.5 kcal/day:11.7 kcal/kg, respectively). The female group had a higher calorie supply per unit body weight compared to that of the male group (766.0 kcal/day:13.7 kcal/kg vs 758.9 kcal/day:11.3 kcal/kg, respectively). According to body mass index (BMI), the low BMI group had a lower calorie intake compared to that of the normal or high BMI group (700.2 kcal/day:15.3 kcal/kg vs 761.8 kcal/day:13.6 kcal/kg vs 766.5 kcal/day:11.1 kcal/kg, respectively). The actual infused amount of calorie significantly varied day by day in all the groups (range: 31.52 kcal/day to 1,559.31 kcal/day).
The actual calorie intake significantly varied from day-to-day. Moreover, the intake was significantly lower than the average daily recommended amount of calories following a gastrectomy in gastric cancer patients during the immediate postoperative period.
The perioperative nutritional status is a potential prognostic factor in gastric cancer patients. This study assessed the optimal cut-off value of the prognostic nutritional index (PNI) for predicting the survival of patients with early stage gastric cancer and evaluated its power for predicting the survival after gastric cancer surgery.
This study reviewed the data of 8,014 patients with stage T1N0~1M0 and T2~3N0M0 gastric cancer who underwent a curative gastrectomy without adjuvant chemotherapy between January 2006 and December 2015. The log-rank test on SAS was conducted to determine the preoperative PNI cut-off value that indicated the most significant difference in survival, and the clinical features and oncological outcomes were analyzed according to the cut-off value of the preoperative PNI.
The preoperative PNI cut-off value that indicated the most significant difference in survival was 43.7. Using this cut-off value, patients were classified into high PNI and low PNI groups. The five-year overall survival rate was 96.9% and 81.5% for the high and low PNI group, respectively (P<0.001). Considering each stage (Ia, Ib, and IIa), the overall survival rates were significantly higher for the high PNI group than the low PNI group. Multivariable analysis revealed the cut-off value of the preoperative PNI to be among the independent risk factors for survival.
The cut-off value of the preoperative PNI that could be used to determine the significant differences in the survival of patients with early stage gastric cancer was identified and proven to have a significant impact on predicting survival.
During the first year after surgery, gastric cancer patients experience weight loss and a decline in physical activity. In addition, depravation of the nutritional status and anemia is observed. The decrease in stomach volume is believed to be one of the causes for these changes. The purpose of this study was to investigate the effects of the remnant stomach volume on nutrition, anemia, and body composition-related parameters in gastric cancer patients after surgery.
A total of 110 patients with stage 1 gastric cancer, who underwent a laparoscopic gastrectomy in 2015 were evaluated in this prospective observational study. Among them, 78 patients received a distal gastrectomy (Billroth 1: 52, Billroth 2: 12, Roux en Y: 14) and 32 underwent a total gastrectomy. The weight, height, and blood test results of the patients were collected during the observation period. The remnant stomach volume, total abdominal muscle area, and subcutaneous/visceral fat area were measured using CT images.
Patients with a larger remnant stomach volume showed a smaller decrease in the nutritional parameters and better recovery of the hemoglobin level during the first year after surgery. Among the body composition parameters, visceral fat was affected to the greatest extent and subcutaneous/visceral fat were better preserved in the group with a larger remnant stomach volume. In the group with a total gastrectomy, the parameters were worsened significantly compared to the distal gastrectomy group.
The remnant stomach volume has a protective effect on the body mass index, body weight change, hemoglobin, total protein, cholesterol, and visceral/subcutaneous fat area during the first year after surgery.
Since its introduction as an alternative intestinal lengthening technique, the serial transverse enteroplasty (STEP) procedure has been used increasingly as the surgical treatment of choice for children with short bowel syndrome (SBS). On the other hand, there are few report of its efficacy in adults with SBS, particularly those who have previously undergone a gastrectomy. This case report describes a 34-year-old woman with a short bowel after an esophagectomy and total gastrectomy due to lye ingestion followed by an extensive intestinal resection due to small bowel strangulation. The STEP procedure was performed successfully and the small intestine was lengthened from 55 to 75 cm. The patient tolerated the procedure well and was weaned off total parenteral nutrition. The frequency and characteristics of diarrhea improved, and her weight remained acceptable via management with intermittent parenteral nutritional support for 6 months postoperatively. This case suggests that the STEP procedure should be considered for gastrectomized patients with SBS.
Nutritional deficiency after gastrectomy is caused by anatomical and physiologic changes in the stomach. In the case of patients with gastric cancer, nausea and loss of appetite due to cancer cachexia syndrome can affect nutritional status after gastrectomy. Prognostic nutritional index based on preoperative nutritional conditions is used for prediction of postoperative outcomes including long-term survival. Generally, enteral nutrition is more effective for post-gastrectomy conditions than parenteral nutrition. In addition, specialized enteral formulas such as immunonutrition (amino acids, ω-3 fatty acids and nucleotide) seem to have benefits for gastrectomy patients, although there is still insufficient evidence. Ghrelin is a next generation agent to stimulate appetite in patients that underwent gastrectomy.