This is the seventh paper in the evidence-based medicine glossary series. In this paper, We mainlyintroduced five terms related to meta-analysis——prospective meta-analysis, individual patient data meta-analysis,cumulative meta-analysis, multiple-treatments meta-analysis and meta regression.We also gave some examples to helpreaders better understand and use them.
ObjectiveTo summarize the progress and clinical application of portal vein embolization (PVE). MethodsDomestic and international publications about the PVE were retrieved and reviewed. ResultsPVE could effectively increase the perioperative security when selected at the appropriate time during liver resection surgery. However, there were some disputes on the best choice of the PVE in material, the use of dosage, and the clinical operation method. ConclusionsPVE as a method to induce liver to compensation, has a prominent role in increasing liver subtotal security, and improving the survival rate of patients. But it needs to be researched further to improve technique to promote future liver remnant hyperplasia compensatory faster and better.
ObjectiveTo compare the quality of life in the early stage of treatment in patients who accepted renal transplantation with those who still were undergoing long-term hemodialysis. MethodsPatients undergoing long-term hemodialysis in December 2011 and adult patients who planned to accept renal transplantation within 6 months were chosen to be our study subjects. The Medical Outcomes Study 36-item Short Form Health Survey Questionnaire (SF-36) was used for the study. After 6 months of following up, they were assessed with the same questionnaire again. Those hemodialysis patients who accepted renal transplantation within this period were divided into the intervention group. The quality of life between the two groups was compared then. ResultsA total of 124 end-stage renal failure patients were involved in our study, in which 79 patients successfully accepted renal transplantation (intervention group) and the other 45 patients who still underwent hemodialysis (control group). No other complications were observed during this period. There was no significant difference in life quality between the two groups before treatment (P>0.05). Six months after the treatment, SF-36 total score and each of the 8 dimension scores for the intervention group were all significantly higher than those for the control group (P<0.05). ConclusionRenal transplantation recipients have a totally better life quality than those who depend on hemodialysis.
Objective To discuss the feasibility and clinical outcomes of fast-track (FT) surgery for elderly patients (≥70 years) with colorectal carcinoma. Methods Between November 2007 and January 2009, 103 elderly patients were analyzed prospectively, who were divided into FT group and traditional group randomly. All 103 patients had completed the entire study. Postoperative complications and early rehabilitations were studied and compared. In addition, completion of FT courses was recorded. Results ① In early rehabilitation, the time of first ambulation was (1.96±0.89) d and (2.92±1.43) d, oral intaking was (2.41±0.92) d and (3.62±1.40) d, and first flatus was (3.88±1.05) d and (4.52±1.29) d in the FT group and the traditional group, respectively. The early rehabilitation indexes in the FT group were significantly earlier than those in the traditional group (Plt;0.05). ② Postoperative hospital stay was (9.27±1.87) d and (12.75±7.05) d in the FT group and the traditional group, respectively, in the FT group which was shorter than that in the traditional group (Plt;0.05). ③ The mortality rate and readmission rate was 0 on 2 weeks after operation in two groups. ④ The total morbidity rate was 11.76% (6/51) in the FT group, in the traditional group was 28.85% (15/52), there was significant difference between two groups (Plt;0.05), while there was no significant difference in general complications and surgical complications between two groups (Pgt;0.05).Conclusions FT surgery for elderly patients with colorectal carcinoma is feasible and could enhance recovery, cut down morbidity rate and shorten postoperative hospital stay. If the FT courses are more completed, the clinical outcomes could be better.
Objective To explore the association between 25-hydroxyvitamin D (25OHD) level and risk of the onset of metabolic syndrome (MS) in people in Chengdu. Methods In total, 474 participants were selected randomly by cluster sampling from one urban district and two rural villages in Longquanyi district of Chengdu. The data of sociodemographic information, lifestyle and family history were collected by questionnaires. Binary logistic regression was performed to assess the relationship between baseline 25OHD level and incident of MS, while multiple linear regression was conducted to analyze the relationship between baseline 25OHD level and insulin resistance. Results Four hundred seventy-four people were enrolled in the cohort study, 39 of them developed MS, with the incidences of 20.8 events per 1 000 person years. Among women, low 25OHD status was significantly associated with the risk of developing MS (OR=4.29, 95%CI 1.05 to 29.50, P=0.044) after adjustment for multiple potential confounders. In a multiple linear regression analysis, low 25OHD level of baseline was independently associated with the increased HOMA-IR over a 4-year period among Chengdu individuals (P<0.05) and was independently related to the decreased ISIcomp over a 4-year period in female (P<0.05). Conclusions The current prospective study suggests that low 25OHD level may contribute to increase insulin resistance in Chengdu population. Furthermore, low 25OHD level may increase the risk of MS among women in Chengdu.
ObjectiveTo evaluate the metastasis feature and the dissecting value of cervicothoracic lymph node for middle esophageal squamous carcinoma. MethodsA total of 303 patients admitted to the Rugao Boai Hospital(107 patients) and the Rugao People's Hospital (196 patients) received the stapled cervical esophagogastrostomy via different thoracic approach according to the admission order number between March 2005 and February 2013. There were 290 patients with Ro resections including 149 patients by Ivor-Lewis approach (an Ivor-Lewis group) and 141 patients by Sweet approach (a Sweet group). The data of lymph nodal dissection and PTNM stage and follow-up of the two groups were analyzed. ResultsThe number of positive lymph nodes dissected from the cervicothoracic junction in the IvorLewis group was significantly greater than that in own upper abdomen (Z=3.12, P<0.05) and that in the cervicothoracic junctionin in the Sweet group (Z=3.30, P<0.05). The lymph node metastasis rate of the cervicothoracic junction in the Ivor-Lewis group was significantly higher than that in own upper abdomen(χ2=10.76, P<0.05)and that in the cervicothoracic junction in the Sweet group (χ2=7.34, P<0.05). The lymph node ratio (LNR) of the cervicothoracic junction in the Ivor-Lewis group was significantly higher than that in own upper abdomen (χ2=11.67, P<0.05) and that in the cervicothoracic junction in the Sweet group (χ2=5.99, P<0.05). The proportion of patients which PTNM were Ⅲa or Ⅲb as N＞N1 in the Ivor-Lewis group was significantly higher than that in the Sweet group(χ2=5.59, P<0.05). After surgery of 1 year, 3 years, 5 years, the rate of lymph node local recurrence and the total rate of tumor metastasis or recurrence in the Ivor-Lewis group were significantly lower than in the Sweet group (P<0.05). The survival rate in the Ivor-Lewis group was significantly greater than that in the Sweet group (P<0.05). ConclusionThe cervicothoracic junction has a higher incidence of lymphatic metastasis, which transfer intensity is greater than that of upper abdomen. The extended cervicothoracic lymph node dissection should be indeed indispensible to increase of radical resection and the accuracy of PTNM stage and to improve the long term survival for middle esophageal carcinoma.
ObjectiveTo explore the effect of early enteral nutrition (EEN) on immune status of patients in intenseive care unit (ICU). MethodsA prospective control study was conducted from July 2011 to December 2012, and 80 patients after trauma and surgery were admitted to ICU. The Patients were divided into EEN group and normal enteral nutrition (NEN) group randomly. Enteral nutrition in EEN group began within 24 hours after admitted to ICU, while within 48 hours in NEN group. ResultsIn 80 patients, 78(37 in EEN group and 41 in NEN group) completed the end point. The baseline in two groups was consistent (P>0.05). The indicators of lymphocyte, IgA, IgG, IgM and CD4+, CD8+, natural kill cell and pre-albumin values in EEN group were higher than those in NEN group (P<0.05). The incidence of diarrhea (8.1%, 26.8%) and infection of wound (2.7%, 17.1%) in EEN were less than those in NEN group. The hospitalization duration in ICU in EEN group[(7.94±3.72) days] was also shorter than that in NEN group[(10.62±3.14) days]. ConclusionEarly enteral nutrition improves immune function and nutrition status in ICU patients; it also protects gut barrier function and reduces the ICU hospitalization duration.
Objective To summarize the current status and progress of treatment for ductal carcinoma in situ （DCIS）. Methods The related literatures on actuality and advancement of treatment for DCIS were searched and reviewed. Results As the increase of incidence， the treatment options for DCIS continued to evolve. Surgical treatment options included mastectomy and breast-conserving surgery. Postoperative radiation therapy in combination with breast-conserving surgery was considered to be the standard for the decrease of local recurrence. The role of endocrine therapy was also being evaluated currently. Conclusions Breast-conserving surgery and combined therapy have became the main methods for treatment of DCIS. Further studies are necessary to determine which subset of patients with DCIS require only surgery alone without adjuvant therapy. Minimally invasive treatment will be a developing direction of DCIS.
Objective To investigate the incidence of full-term prelabor rupture of membranes (FPROM) and risk factors for FPROM. Methods A prospective nested case-control study was performed on pregnant women in early pregnancy and their spouses, who underwent prenatal examination for the first time in Zhuhai Center for Maternal and Child Health Care from May 2021 to December 2022. Pregnant women with a clear diagnosis of FPROM were included in the case group, and pregnant women without FPROM were randomly selected at a 1∶3 ratio for inclusion in the control group. A questionnaire survey was performed to collect exposure information possibly related to FPROM. The hospital's medical record system was used for information verification and to record the pregnancy outcomes. A multivariate logistic regression analysis was used to investigate the risk factors for FPROM. Results The incidence of FPROM in this study was 24.27%. The multivariate logistic regression analysis showed that obesity pregnant women, smoking, drinking, unbalanced diet, high-intensity physical activity during pregnancy, eating areca nut before pregnancy, using glucocorticoids during pregnancy, older at the time of first pregnancy, a history of adverse pregnancy outcomes, a history of pregnancy complications, a history of diabetes, a history of scar uterus, no folate supplementation during pregnancy, repeated intrauterine operations, polyembryony, polyhydramnios, transverse fetus and fetal cephalopelvic disproportion as the way of conception were risk factors for FPROM (P<0.05). Additionally, the pregnant women whose spouses were obese or smoked or drinking had an increased risk of FPROM (P<0.05). Lower gravidity and lower parity were protective factors against FPROM (P<0.05). Conclusion There are many risk factors for FPROM. Special attention should be given to the life behaviors of pregnant women during pregnancy, and health education should be strengthened for pregnant women and their spouses to help them develop good living habits and reduce the incidence of FPROM.
ObjectiveTo do a brief introduction and prospects for simultaneous pancreas and kidney transplanta-tion from aspects of recipient screening, choice of operative method, prognosis, quality of life, and complications. MethodDomestic and international literatures were collected to summary the effect, prognosis, and the latest progress of simultaneous pancreas and kidney transplantation in the treatment of diabetes. ResultsAs a kind of mature treatment of diabetic with end-stage renal disease, simultaneous pancreas and kidney transplantation had been carried out in most transplantation centers around the world, it had the definite therapeutic effect and controllable side effects, the life quality of posttransplantation patients would be improved notably. However, the screen of transplantation patient, the selection of transplantation operation, and the postoperative immunosuppressive protocols had not yet been reached a consensus. ConclusionsSimultaneous pancreas and kidney transplantation is the most effective treatment for type 1 diabetes patients with end-stage renal disease, it provides a more feasible and more physiological way for the secretion of insulin. Although the patient has to undergo a major operation and take some risk, simultaneous pancreas and kidney transplantation still improves the patient's survival rate and the quality of life, and reduces the incidence of complications related to diabetes. Based on the above reasons, simultaneous pancreas and kidney transplantation should be a preferred treatment for all eligible patients.