Objective To investigate the magnetic resonance imaging （MRI） assessment and functional evaluation of chronic pancreatitis （CP）. Methods Literatures about MRI assessment of CP （especially the evaluation of pancreatic exocrine function with MRI） were reviewed. Results Some early parenchymal changes （pancreatic size，signal intensity of pancreas， and enhancement pattern） in the CP could be visualized by MRI；ductal changes could be visualized by MR cholangiopancreatography （MRCP）；and secretin-stimulated MRCP （combination of both morphologic and functional evaluation） not only improved the visualization of pancreatic duct and side branches，but also allowed evaluation of the pancreatic exocrine function noninvasively. Secretin-stimulated diffusion weighted imaging also could be used as a noninvasive method to assess pancreatic exocrine function. Conclusions Conventional MRI and （or） secretin-stimulated MRI can become valuable means in CP （especially early-stage CP）， with furnishing morphologic and functional information simultaneously. However，further research is needed to verify the diagnostic accuracy of these modalities.
Soft tissue opacities are often found by chance during radiographic examinations, especially in panoramic radiography. Because of the diversity of locations and causes, it is easily overlooked by dentists and even radiologists. Even if abnormal calcification is detected, it is difficult to identify its category and clinical relevance. For some soft tissue opacities associated with high-risk diseases, misdiagnosis is likely to delay treatment. Through reviewing the literature and screening the panoramic images from the disease database of West China Hospital of Stomatology, Sichuan University, this review summarizes and classifies the soft tissue opacities appearing in panoramic images, and discusses the clinical correlation to provide the reference for diagnosis, treatment, and prevention of related diseases.
Objective To investigate the distribution and antibiotic resistance of pathogens isolated fromlower respiratory tract in mechanically ventilated patients with acute exacerbation of chronic obstructive pulmonary disease ( AECOPD) . Methods The patients with AECOPD, who were hospitalized in RICU from January 2008 to November 2009, were divided into a community infection group and a nosocomial infection group. Lower respiratory tract isolates were collected by bronchoscopic protected specimen brush for bacterial identification and susceptibility test. Results 134 cases were enrolled in the study, with 75 cases in thecommunity infection group and 59 cases in the nosocomial infection group. The positive detection rate in the nosocomial infection group was significantly higher than that in the community infection group [ 81. 4%( 48/59) vs. 54. 7% ( 41/75) ] . In the community infection group, 49 strains were isolated, in which gramnegativebacteria, gram-positive bacteria, and fungi accounted for 55. 1% , 28. 6% , and 16. 3% , respectively.In the nosocomial infection group, 55 strains were isolated, in which gram-negative bacteria, gram-positive bacteria, and fungi accounted for 61. 8% , 21. 8% , and 16. 4%, respectively. There was no significant difference in the microbial distribution between the two groups ( P gt; 0. 05) . The detection rate of ESBLs producing strains in the nosocomial infection group was significantly higher than that in the community infection group ( 58. 8% vs. 37% ) . The resistance rates in the nosocomial groups were higher than those in the community infection group. Conclusions Antibiotic resistance is serious in mechanically ventilated patients with AECOPD, especially in the nosocomial infection patients. The increased fungi infection and drug resistance warrant clinicians to pay more attention to rational use of antibiotics, and take effective control measures.
Objective To investigate the safety and efficacy of preoperative ultra-short-course chemotherapy combined with surgical treatment of chest wall tuberculosis. Methods The clinical data of 216 patients with chest wall tuberculosis from January 2013 to June 2016 in our hospital were retrospectively analyzed, including 121 males and 95 females with an average age of 35±15 years (range, 4-74 years). Results All patients were treated with anti-tuberculosis drugs for 17.0±11.3 days preoperatively, including 12.5±5.0 days in simple chest wall tuberculosis and 19.4±12.3 days in combined chest wall tuberculosis. The postoperative recurrence rate of chest wall tuberculosis was 3.7%, which was close to or lower than that of routine preoperative antituberculous therapy in patients with ultra-short-course anti-tuberculosis treatment before surgery. Conclusion Preoperative ultra-short-course chemotherapy combined with surgical treatment for chest wall tuberculosis will not increase the recurrence rate of chest wall tuberculosis, and can effectively shorten the hospital stay. Timely adjustment of anti-tuberculosis chemotherapy based on thorough debridement, postoperative drugs, not the preoperative drugs, is the key to reinforce the surgical outcome.
Objective To systematically review the health economic evaluation studies of medicines for the treatment of acute myeloid leukemia (AML). MethodsThe PubMed, EMbase, Cochrane Library, CBM, CNKI, and WanFang Data, as well as the CRD database specifically for health economics were electronically searched from inception to June 2022, and related journals in the field of health economics and the websites of HTA institutions in various countries were manually searched. The quality of the studies was assessed using the CHEERS checklist. The basic characteristics of health economics evaluation publications were summarized, the quality of model structures and methodologies was assessed and economic evaluation results were compared among different treatments. Results A total of 17 studies were included, and cost-effectiveness analyses were conducted from the perspectives of the health system, patients, the whole society, and medical insurance payers. The economic evaluation models were relatively unified, but there were differences in methods and results reporting, and the quality needed to be improved. The research objects were mainly the comparison of hypomethylating agents, targeted medicine and traditional chemotherapy regimens, as well as the comparison of different chemotherapy combinations and different drug dosages. Conclusion Real-world studies are mainly focused on traditional chemotherapy regimens, and model-based health economic evaluations, such as Markov models, are more frequently applied to newly developed targeted drugs and demethylation drugs. Among all treatments, the chemotherapy regimens including cytarabine, midostaurin, and decitabine are found to be more cost-effective.
【摘要】 目的 调查成都地区2型糖尿病患者糖耐量正常一级亲属的代谢状态及与胰岛素抵抗、胰岛β细胞功能的相关性。 方法 2007年7-9月共纳入糖耐量正常的一级亲属312例（NGT-FDR组），无家族史的正常对照1 348例（NGT-C组）。测量两组血压、体重、腰围；检测口服葡萄糖耐量试验（OGTT）中0、0.5、2 h血糖、胰岛素水平；测定空腹血脂；计算体重指数、HOMA-胰岛素抵抗指数（HOMA-IR）、胰岛β细胞功能指数（HOMA-β），β细胞早相分泌功能指数（△I30/△G30），并比较两组间上述指标的差异和代谢综合征（MS）及其各组分的发病情况。 结果 ①NGT-FDR组MS发生率高于NGT-C组，发生MS的风险是后者的1.737倍。NGT-FDR组高甘油三酯血症（hypertriglyceridemia，HTG）、空腹血糖偏高（5.6~6.0 mmol/L）的发生率高于NGT-C组，合并4种及以上代谢异常的几率亦高于NGT-C组（Plt;0.05）；②年龄lt;40岁的NGT-FDR中心性肥胖、HTG、空腹血糖偏高和MS均高于同年龄对照；男性NGT-FDR空腹血糖偏高和MS发病率高于男性对照（Plt;0.05）；③腰围、收缩压（SBP）、空腹血糖（FBG）、甘油三酯（TG）及糖尿病家族史同HOMA-IR呈正相关。腰围、SBP、TG及糖尿病家族史同HOMA-β呈正相关，FBG则同HOMA-β呈负相关。 结论 2型糖尿病糖耐量正常一级亲属比无家族史的对照表现出更多的代谢异常，尤其是在年龄lt;40岁及男性中。各种代谢异常可加重胰岛素抵抗，影响胰岛基础分泌功能。故有必要对糖耐量正常的一级亲属进行各项代谢指标的监测和早期预防性干预。【Abstract】 Objective To investigate the metabolic status of the normal glucose-tolerant first-degree relatives (NGT-FDR) of type-2 diabetic patients and its relationship with insulin resistance (IR) and β-cell function in Chengdu area. Methods From July to September 2007, a total of 312 NGT-FDR of type-2 diabetic patients and 1 348 normal glucose tolerant controls without positive family history of diabetes (NGT-C) were enrolled in this study. Blood pressure, weight, waists, plasma glucose at hour 0, 1/2 and 2 in oral glucose tolerance test (OGTT), insulin levels and fasting blood lipids were measured. Body mass index (BMI), HOMA-IR, HOMA-β and the early insulin secreting index (△I30/△G30) were calculated. Then, we compared the above-mentioned data and the incidence of metabolic syndrome (MS) between the two groups. Results ①The incidence of MS, hypertriglyceridemia (HTG), higher fasting blood glucose (FBG) (5.6-6.0 mmol/L) in the NGT-FDR group were all significantly higher than those in the NGT-C group. The risk of developing MS in the NGT-FDR group was 1.737 times as high as that in the NGT-C group. Furthermore, the incidence of 4 or more than 4 co-existent metabolic disorders in the NGT-FDR group was also significantly higher than that in the NGT-C group (Plt;0.05); ②For subjects less than 40 years old, the incidence of central obesity, HTG, higher FBG and MS in the NGT-FDR group were all higher than those in the NGT-C group. In male subjects, the rates of higher FBG and MS were all significantly higher in the NGT-FDR group than those in the NGT-C group. (Plt;0.05); ③Waists, FBG, systolic blood pressure (SBP), triglycerides (TG) and diabetic family history were positively correlated with HOMA-IR. Waists, SBP, TG and diabetic family history were positively correlated with HOMA-β. Conclusion NGT-FDR present significantly increased metabolic disorders than NGT controls, especially in the less than 40-year-old and the male subjects. The metabolic disorders can aggravate insulin resistance and influence islet β-cell secretion function, so it is necessary to monitor the metabolic status of the NGT-FDR of type-2 diabetic patients and provide early preventive interventions.