Objective To explore the effect of different nutrition on the immune function of patients with colorectal cancer. Methods A total of 640 colorectal cancer patients were randomized into the enteral nutrition and peripheral nutrition groups. The peripheral venous blood was sampled before operation and on the postoperative days 1 and 7 to determine the serum levels of IgG, IgA, IgM, the percentage of T lymph cell subgroups CD3, CD4, CD4/CD8 and CRP, PGE, α- antitrypsin etc. The patient’s general condition, side-effects, and complications were observed intimately after surgery. Results Compared with the control group, the IgG, IgA, IgM, CD3, CD4,CD4/CD8 levels of the trial group on postoperative day 7 were higher. But the levels of CRP, PGE, α- antitrypsin were decreased. Hospitalization time and anal exsufflation time were shorter as well. There was no significant difference in either the general conditions or complications between the two groups. Conclusion Application of enteral nutrition after colorectal cancer surgery is safe, ,effective, and can improve the patient’s immune function and prognosis.
ObjectiveTo explore the correlation between readiness for hospital discharge and short-term quality of life among colorectal cancer (CRC) patients following enhanced recovery after surgery (ERAS) mode.MethodsSurveys of 127 CRC patients following ERAS mode were conducted in the West China Hospital of Sichuan University. The Readiness for Hospital Discharge Scale and EORTC QLQ-C30 Scale were issued at the discharge and 1 month after the operation, respectively.ResultsThe total score of RHDS was 149.43±33.25. The score of global quality of life was 66.80±18.84. Correlation analysis showed that the total score of RHDS was positively correlated with the score of global quality of life (r=0.220, P=0.013), and negatively correlated with the scores of fatigue, nausea and vomiting, pain, loss of appetite (r=–0.304, P=0.001; r=–0.189, P=0.033; r=–0.257, P=0.004; r=–0.254, P=0.004). The score of personal status dimension were positively correlated with the score of global quality of life and emotional function (r=0.213, P=0.016; r=0.197, P=0.027), and negatively correlated with scores of fatigue, pain and insomnia (r=–0.311, P=0.000; r=–0.264, P=0.003; r=–0.257, P=0.004). The score of knowledge dimension was negatively correlated with nausea and vomiting, pain and loss of appetite (r=–0.212, P=0.017; r=–0.182, P=0.040; r=–0.239, P=0.007). The score of coping ability dimension was positively correlated with the score of global quality of life and physical function (r=0.204, P=0.021; r=0.204, P=0.021), while negatively correlated with scores of fatigue, pain, insomnia and loss of appetite (r=–0.349, P=0.000; r=–0.240, P=0.007; r=–0.202, P=0.022; r=–0.201, P=0.024). The score of expected support was positively correlated with the score of global quality of life (r=0.220, P=0.013), and negatively correlated with scores of fatigue and loss of appetite (r=–0.249, P=0.005; r=–0.227, P=0.010).ConclusionsThe short term quality of life among CRC patients following ERAS keeps at upper middle level, and positively correlated with the readiness for hospital discharge. It is suggested that discharge preparation service is of great significance to improve the quality of life of patients.
ObjectiveTo explore the influence of enhanced recovery after surgery (ERAS) on intestinal flora in patients with colorectal cancer.MethodsBy convenient sampling method, 60 patients with colorectal cancer were selected from August 2018 to December 2019 in the Department of Gastrointestinal Surgery of West China Hospital of Sichuan University and randomly divided into ERAS group and traditional treatment group (traditional group). Among them, the perioperative clinical management was carried out according to the ERAS management and traditional treatment process in the the ERAS group and in the traditional group, respectively. The fresh fecal samples were collected within 24 h after admission and the first natural defecation after operation. The bacterial 16 Sr DNA V3–V4 region was sequenced by Illumina MiSeq sequencer, and the results were analyzed by bioinformatics.ResultsA total of 60 patients with colorectal cancer were included, 30 cases in the traditional group and 27 cases in the ERAS group (3 people temporarily withdrew from the study). There were no significant differences in the basic informations between the two groups (P>0.05). ① Before or after operation, there were no significant differences in Shannon index and Simpson index between the two groups. The difference between preoperative and postoperative comparison in the same group was also not statistically significant (P>0.05). ② Beta diversity analysis showed that there was no significant difference in community composition between the traditional group and the ERAS group before operation, and there was a clear boundary between the traditional group and the ERAS group after operation. ③ At the phylum level, compared with the preoperative abundance, the postoperative abundance Firmicutes decreased by 26.5% and 5.5% in the traditional and ERAS group, respectively; Bacteroidetes increased by 21.6% and 4.7% in the traditional and ERAS group, respectively; Proteobacteria increased by 7.2% and 2.2% in the traditional and ERAS group, respectively. At the genus level, compared with the preoperative abundance, the postoperative abundance of Bacteroides in the traditional group increased by 17.6% and in the ERAS group decreased by 1.6%; Bifidobacterium decreased by 1.8% and 1.3% in the traditional group and in the ERAS group, respectively.ConclusionsERAS does not affect species diversity of intestinal flora. Although ERAS has some damage to structure of intestinal flora, it is weaker than traditional process, so it is more conducive to reconstruction and restoration of intestinal microecological environment.
ObjectiveTo summarize research progress of quality of life in patients after colorectal cancer surgery.MethodsThe literatures about quality of life of patients with colorectal cancer surgery in recent years are reviewed.ResultsQuality of life had became an important criterion for evaluating the therapeutic effect and prognosis of cancer. At present, the assessment tools for the quality of life of colorectal cancer patients mainly included the universal scale [such as Short Form Health Survey (SF-36)], the applicable scales for cancer patients [such as European Organization for Research and Treatment of Cancer: quality of life questionaire-C30 (EORTC QLQ-C30) and European Organization for Research and Treatment of Cancer: quality of life questionaire-CR38 (EORTC QLQ-CR38)], and the special scales for stoma patients represented by City of Hope Quality of Life-Ostomy Questionnaire (COH-QOL-OQ), Stoma Quality Of Life (Stoma-QOL), Stoma Quality Of Life Scale (SQOLS), and so on. The short-term quality of life of colorectal cancer patients was lower at 1 month after operation and recovered at 3 months after operation. Five years after surgery, attention should also be paid to the long-term quality of life. Besides, postoperative quality of life of colorectal cancer patients was affected by age, occupational status, economy, preoperative physical activity level, psychological and social factor, personality, surgical method, co-morbidity, complication, stoma, and so on.ConclusionsUnderstand the longitudinal changes and influencing factors of patients’ quality of life after operation, grasp the time point of effective intervention, and select appropriate assessment tools are necessary for medical staff. It is of great significance to further optimize the clinical management pathway and improve the quality of life of patients with colorectal cancer after operation.
Aiming at the disadvantages of traditional direct aperture optimization (DAO) method, such as slow convergence rate, prone to stagnation and weak global searching ability, a gradient-based direct aperture optimization (GDAO) is proposed. In this work, two different optimization methods are used to optimize the shapes and the weights of the apertures. Firstly, in order to improve the validity of the aperture shapes optimization of each search, the traditional simulated annealing (SA) algorithm is improved, the gradient is introduced to the algorithm. The shapes of the apertures are optimized by the gradient based SA method. At the same time, the constraints between the leaves of multileaf collimator (MLC) have been fully considered, the optimized aperture shapes are meeting the requirements of clinical radiation therapy. After that, the weights of the apertures are optimized by the limited-memory BFGS for bound-constrained (L-BFGS-B) algorithm, which is simple in calculation, fast in convergence rate, and suitable for solving large scale constrained optimization. Compared with the traditional SA algorithm, the time cost of this program decreased by 15.90%; the minimum dose for the planning target volume was improved by 0.29%, the highest dose for the planning target volume was reduced by 0.45%; the highest dose for the bladder and rectum, which are the organs at risk, decreased by 0.25% and 0.09%, respectively. The results of experiment show that the new algorithm can produce highly efficient treatment planning a short time and can be used in clinical practice.
ObjectiveTo investigate the prevalence of early mobilization and it’s influencing factors in colorectal cancer patients who underwent enhanced recovery after surgery (ERAS) pathway. MethodsThe geneal data and perioperative data were collected through questionnaire survey and accessing to the hospital information system. The situation of early mobilization was investigated by bedside inquiry. Logistic regression was used to analyze the influencing factors of early mobilization in the patients with colorectal cancer. ResultsIn this study, 300 patients with colorectal cancer underwent ERAS were selected. Within 24 h after operation, 47 patients got out of bed, the early mobilization rate was 15.7%. Logistic regression results showed that the patients without preoperative complications (OR=2.726, P=0.019) and without preoperative nutritional risk (OR=3.621, P=0.013), and with operation time <3 h (OR=2.246, P=0.032) increased the probability of early mobilization, and preoperative low albumin decreased the probability of early mobilization (OR=0.364, P=0.007). ConclusionsEarly mobilization rate of patients with colorectal cancer in ERAS mode is low. Preoperative complications, preoperative albumin level, preoperative NRS2002 score, and operation time were important influencing factors. Active treatment of preoperative complications and improvement of preoperative nutritional status could make patients bear follow-up stress process with better physical condition, which helps to promote early mobilization.