ObjectiveTo research on the influence of cluster management on the nutritional intervention for nasopharynx cancer patients undergoing intensity modulated radiation therapy (IMRT), in order to discuss effective and feasible nutrition management method. MethodEighty-three nasopharynx cancer patients undergoing IMRT between June 2013 and December 2014 were selected as the study subjects. They were divided into two groups randomly. Regular health education and nutritional guidance were carried out for the 41 patients in the control group, while nutritional risk screening (NRS)-2002 nutrition screening, nutrition assessment and nutritional intervention were carried out for the 42 patients in the intervention group. Nutrition risk, nutritional status and side-reaction were recorded and evaluated for both groups of patients. ResultsAfter treatment, NRS-2002 score of the intervention group was lower than the control group (P<0.05). Body weight, constitutional index, skinfold thickness of triceps brachii muscle, mid-arm circumference and mid-arm muscle circumference of the intervention group were better than the control group (P<0.05). Total serum protein, serum albumin, serum transferrin were better and the rate of levelⅢ-Ⅳ radiation-induced oral mucositis was lower in the intervention group than that in the control group (P<0.05). ConclusionsThe application of cluster management model in nutritional intervention is a way to promote patients' rehabilitation, which can effectively improve the whole body situation of nasopharynx cancer patients, and reduce malnutrition rate and side-reaction.
ObjectiveTo summarize the pathogenesis and epidemiology features of gastrointestinal stromal tumor(GIST), explore its diagnosis and therapy, and analyze its prognosis. MethodThe pertinent literatures about the pathogenesis, epidemiology features, diagnosis, therapy, and prognosis of GIST in recent years were reviewed. ResultsGIST was non-epithelial tumor which derived from interstitial cells of Cajal, was the most common mesenchymal tumor about accounting for 1%-3% in the digestive tract tumor. The median onset age of patients with GIST was 40-60 years. The gastric stromal tumor was about 60% in all the digestive tract tumor. The current consensus statement was that there was a relation between the pathogenesis of the GIST and proto-oncogene c-kit or platelet-derived growth factor receptor alpha(PDGFRα)gene mutation. But the mutations of PDGFRαand c-kit gene did not emerge at the same time in the same patient. The clinical manifestations of GIST were not specific, and the diagnosis mainly depended on endoscope and image technology, the correct diagnosis depended on pathological examination. The treatment of GIST was given priority of surgery and molecular targeted drug therapy, and the prognosis was closely related to risk assessment stratify of GIST. ConclusionsGISTs are mesenchymal tumors that has a potential of malignant transformation, the risk classification criteria for aggressive clinical course of primary GIST is an important indication for guiding the clinical therapy and prognostic evaluation. Further research would be needed in prevention, diagnosis, treatment, and relapse prevention of GIST.
Objective To observe the histopathological changes of tumor tissue after intraoperative regional chemotherapy of rectal cancer. Methods After the treatment of intraoperative regional chemotherapy with 5-FU (15 mg/kg)， the histopathological changes of tumor tissue were detected. Results Slight changes with cancer cells in all the cases accepted intraoperative regional chemotherapy were found under light microscope such as karyopyknosis, nuclear swelling, coagulation and necrosis of cytoplasm, hydropsia of intercellular substance, invasion of inflammatory cells, and 9/15 cases with slight inflammation of vessels were observed; While those changes were found in individual cells of the cases without regional chemotherapy. The more enlarged intercellular space of cancer cell was observed under electron microscope in the case with regional chemotherapy. Conclusion The intraoperative regional chemotherapy of rectal tumor can change the histopathological appearance of tumor tissue, that is significant in preventing cancer cells diffusing during operation and relapsing after operation.
Objective To observe the drug distributional characteristics after regional arterial perfusion chemotherapy (RAC) during gastric cancer radical resection, postoperative histopathological change and clinical toxic and adverse reactions. Methods According to the indications of RAC, 60 patients admitted in this department from September 2007 to November 2008 were included and divided into treated group and control group randomly. Treated group underwent the treatment of RAC with the 100 ml perfusion fluid including 5-FU (1 000 mg/m2), MMC (10 mg/m2) and 2 ml methylene blue injection by which the control group were not treated. Then the methylene blue distributional characteristics during operation, postoperative histopathological changes of tumors and clinical toxic and adverse reactions were observed. Results In the treated group, after RAC with injection contained methylene blue by primary supply arterial, the tumor region colored immediately and then dropped slowly, but it presented blue during whole operation. After operation, light microscope examination revealed a mild change of karyopyknosis, nuclear swelling, coagulation of cytoplasm in cancer cells, mild hydropsia of intercellular substance, invasion of inflammatory cells and mild vasculitis in some cases. Transmission electron microscope showed that nuclear swelling or coagulation, nuclear heterochromatin agglutination, nuclear-week gap expansion, mitochondrial swelling, endoplasmic reticulum expansion, and Golgi complex expansion. AST of treated group increased apparently on the first day (Plt;0.01), and recovered normal on the third day (Pgt;0.05). There was no significant difference between the two groups in renal function, ALT, ALP, GGT, LDH of liver function, medullary restraining, ECG by bed or reaction of gastrointestinal tract (Pgt;0.05). And stomal leak was not found in two groups. Conclusions The RAC during radical resection of gastric cancer enables gastric tumor to expose to therapeutics during whole operation and depresses the activity of cancer cells. Its clinical toxicity is little, so it can be used as an important supplementary means to prevent intraoperational extension and postoperative recurrence.
ObjectiveTo detect 5-FU concentration and investigate the changes of pathology， and Ki-67 protein expression after intraoperative regional chemotherapy (RC) for colon cancer. MethodsAll the patients were randomized into two groups: RC group (n=20), received intraoperational RC with 100 ml physiological saline contained 5-FU (15 mg/kg) and camptothecine (0.06 mg/kg)； control group (n=20), saline alone. The samples from portal vein blood, peripheral blood, peritoneal fluid， and peri-cancerous tissues in RC group were taken to detect the 5-FU concentration by high performance liquid chromatography (HPLC), respectively at 2, 5, 10, 20, 30, and 60 minutes after treatment. The pathological changes were observed and Ki-67 protein expressions were examined by immunohistochemical staining for all the cancer tissues postoperatively in two groups. ResultsPeak concentration of 5-FU appeared at 2 min after treatment, and decreased gradually. 5-FU concentration in peritoneal fluid was the highest, and the lowest in the peripheral blood (Plt;0.01). In RC group， light karyopyknosis, nuclear swelling, and coagulative necrosis of cancer cells, and light intercellular substance hydropsia, inflammatory cells invasion were observed under light microscopic examination; light vasculitis presented also in five cases. Nuclear swelling, heterochromatin agglutination, perinuclear gap expansion, mitochondrial swelling, endoplasmic reticulum expansion, and Golgi complex expansion were observed with transmission electron microscope. Ki-67 protein expression of colon cance tissues in RC group was lower than that in control group （Plt;0.05）. Conclusions Intraoperative RC for colon cancer may sustain a high concentration of chemotherapy drugs in peritoneal fluid and portal vein blood, and alter histopathological morphology of cancer cells, and suppress Ki-67 protein expression. So, intraoperative RC may play an important role in preventing intraoperative spreading and postoperative recurrence of colon cancer.