Is Prognostic Nutritional Index an Indicator for Postoperative 90-Day Mortality in Laparoscopic Gastric Cancer Surgery?

Gastic cancer is a life-threatening malignancy in the world. The aim of this study was to investigate the clinical significance of the prognostic nutritional index (PNI) as a guiding marker for gastric cancer patients with laparoscopic gastrectomy. We retrospectively examined the medical records of 138 gastric cancer patients who had adenocarcinoma pathological diagnosis and operated laparoscopically. Patients were divided into two groups (survived and death) and these groups were compared with clinical and laboratory parameters results. The PNI was calculated as 10 × serum albumin (g/dL) + 0.005 × total lymphocyte count (per mm3). Logistic regression analyses were performed to identify the risk factors of 90-day mortality. The median age of the study cohort was 62.5 (19-91) years, 98 (71%) were males, and 9 (6.5%) patients died during the 90-day after laparoscopic gastrectomy. The PNI levels were significantly lower in death group compared with survived group 37.5 (25-47.1) to 46.9 (22.8-64.9). The PNI (Odds Ratio = 0.81, 95% Confidence Interval 0.70-0.92, p = 0.003) was found as an independent factor for 90-day mortality in multivariate analysis. Receiver operating characteristic (ROC) curve analysis showed that 45.15 is the best-cutoff value for 90-day mortality after laparoscopic gastrectomy. 90-day mortality rate of PNI > 45.15 was 2.2% and PNI ≤ 45.15 was 13.6% found. Lower PNI is associated with increased 90-day mortality in laparoscopic gastrectomy for gastric cancer. The PNI may be a useful marker for predicting the 90-day mortality of gastric cancer patients after laparoscopic gastrectomy.

Anti-inflammatory effects of oral and intraperitoneal administration of cerium oxide nanoparticles on experimental hepatic ischemia-reperfusion injury.

Objectives: Hepatic ischemia-reperfusion (IR) injury occurs in liver surgery, resection, and transplantation. Reactive oxygen species (ROS) produced following IR starts the cascade of cell damage, necrosis/apoptosis, and proinflammatory responses by activating intracellular signaling cascade to drive hepatocellular damage. Cerium oxide nanoparticles (CONPs) act as anti-inflammatory and antioxidant agents. Thus, we evaluated the protective effects of oral (o.g.) and intraperitoneal (i.p.) administration of CONPs on hepatic IR injury. Material and Methods: Mice were randomly divided into five groups: control, sham, IR protocol, CONP+IR (i.p.), and CONP+IR (o.g.). Mouse hepatic IR protocol was applied to the animals in the IR group. CONPs (300 µg/kg) were administered 24 hours before IR protocol. Blood and tissue samples were taken after the reperfusion period. Results: Hepatic IR injury markedly increased enzyme activities, tissue lipid peroxidation, myeloperoxidase (MPO), xanthine oxidase (XO), nitrite oxide (NO), and tissue nuclear factor kappa-B (NF-κB) p65 levels, plasma pro-inflammatory cytokines, chemokines, and adhesion molecules while decreasing antioxidant markers and caused pathological changes in hepatic tissue. The expression of tumor necrosis factor alpha (TNF-α), matrix metalloproteinase 2 (MMP-2), and 9 increased, and tissue inhibitor matrix metalloproteinase 1 (TIMP-1) expression decreased in the IR group. Pretreatment with CONPs o.g. and i.p. 24 hours before hepatic ischemia improved the biochemical parameters above and alleviated the histopathological findings. Conclusion: Results of the present study demonstrate a significant reduction in liver degeneration by administering CONPs via i.p. and o.g. route in an experimental liver IR model, suggesting that CONPs have the extensive potential to prevent hepatic IR injury.

Laparoscopic gastrectomy in remnant gastric cancer.

OBJECTIVES: Remnant Gastric Cancer (RGC) describes cancers occurring in the remaining stomach and/or anastomosis in the follow-up after gastric cancer or benign gastric surgery. RGC is diagnosed in esophago-gastroscopy follow-ups of patients who underwent this surgery in the past. Again, the increase in the success of gastric cancer surgery and following medical treatments has increased the incidence of RGC in long-term follow-up after gastric cancer surgery. Laparoscopic surgery has been also reported in few cases. In the present study, the purpose was to present the results of the first five patients that underwent laparoscopic total gastrectomy due to RGC in our clinic. MATERIAL AND METHODS: The patients who underwent laparoscopic gastric cancer surgery between November 2014 and December 2018 were evaluated retrospectively. RESULTS: Mean age of the patients was 62.4 years (ranging between 49 and 74 years). Two of these patients had a surgical history due to gastric cancer and 3 due to peptic ulcer. Surgery was completed laparoscopically in all patients. In the early period, one patient had to undergo re-surgery due to stenosis in Jejuno-Jejunostomy, and the patient died. One patient underwent laparotomy due to colonic stenosis in the second month after the surgery. Recurrence was detected on the 140th and 180th days of follow-up in the other two patients. CONCLUSION: Laparoscopic surgery is a technically applicable method in RGC; however, it is also a risk factor for past surgical postoperative complications. Early recurrence in this group of patients requires a comparison of open and laparoscopic surgery.

Totally minimally invasive radical gastrectomy with the da Vinci Xi® robotic system versus straight laparoscopy for gastric adenocarcinoma.

BACKGROUND: Data regarding the outcomes of pure minimally invasive techniques of radical gastrectomy are scarce. We aimed to compare short-term post-operative outcomes in patients undergoing totally minimally invasive radical gastrectomy with the da Vinci Xi® robotic system versus straight laparoscopy for gastric adenocarcinoma. METHODS: Between December 2013 and March 2018, robotic and laparoscopic radical gastrectomy performed in two centres were included. Both groups were compared with respect to perioperative short-term outcomes. RESULTS: Ninety-four patients were included in the study. Anticoagulant and neoadjuvant chemotherapy use were higher in the robotic group (p = 0.02, p = 0.02). There were conversions in the laparoscopy group whereas no conversions occurred in the robotic group (p = 0.052). Operating time in the robotic group was longer (p = 0.001). The number of harvested lymph nodes in the laparoscopic group was higher (p = 0.047). CONCLUSION: Totally robotic technique with the da Vinci Xi® robotic system provides similar short-term results compared to laparoscopic surgery in radical gastrectomy.

Myxoglobulosis in the appendix.

Myxoglobulosis is a specific type of mucocele consisting of mucoid material. It is characterized by opaque, transparent globules that resemble "fish eggs" or "frogspawns". It is generally diagnosed incidentally during an appendectomy or an autopsy. In this paper, we aim to present the case of a 58-year-old male patient who was referred to our hospital because of abdominal pain and loss of appetite. The patient underwent an appendectomy. Opaque intraluminal globules were found in the appendectomy material. The globules resembled pearls and they were 2-3 mm in diameter. After histopathological examinations, the patient was diagnosed with myxoglobulosis accompanied with acute appendicitis. According to our research, this is the first case of myxoglobulosis in our country.

Adult midgut malrotation presented with acute bowel obstruction and ischemia.

INTRODUCTION: Intestinal malrotation refers to the partial or complete failure of rotation of midgut around the superior mesenteric vessels in embryonic life. Arrested midgut rotation results due to narrow-based mesentery and increases the risk of twisting midgut and subsequent obstruction and necrosis. PRESENTATION OF CASE: 40 years old female patient admitted to emergency service with acute abdomen and computerized tomography scan showed dilated large and small intestine segments with air-fluid levels and twisted mesentery around superior mesenteric artery and vein indicating "whirpool sign". DISCUSSION: Malrotation in adults is a rare cause of midgut volvulus as though it should be considered in differential diagnosis in patients presented with acute abdomen and intestinal ischemia. Even though clinical symptoms are obscure, adult patients usually present with vomiting and recurrent abdominal pain due to chronic partial obstruction. Contrast enhanced radiograph has been shown to be the most accurate method. Typical radiological signs are corkscrew sign, which is caused by the dilatation of various duodenal segments at different levels and the relocation of duodenojejunal junction due to jejunum folding. As malrotation commonly causes intestinal obstruction, patients deserve an elective laparotomy. CONCLUSION: Malrotation should be considered in differential diagnosis in patients presented with acute abdomen and intestinal ischemia. Surgical intervention should be prompt to limit morbidity and mortality.