Abstract: Objective To retrospectively compare the difference of the effects of pulmonary thromboendarterectomy (PTE) between distal and proximal types of chronic thromboembolic pulmonary hypertension (CTEPH). Methods The data of 70 patients (including 44 male patients and 26 female patients, the average age was 46.2 years old, ranging from 17 to 72) with CTEPH having undergone PTE from March 2002 to March 2009 in Anzhen Hospital were retrospectively reviewed. We classified them into two different groups which were the proximal CTEPH group (n=51) and the distal CTEPH group (n=19) according to the pathological classification of the CTEPH. Clinical data, hemodynamics blood gas analysis and so on of both groups were compared. Results There was no perioperative deaths in both groups. Compared with the proximal group, cardiopulmonary bypass time [CM(159mm](189.5±41.5 min vs.155.5±39.5 min,P=0.003), aorta cross clamp time (91.3±27.8 min vs.67.2±27.8 min,P=0.002) and DHCA time (41.7±14.6 min vs.25.7±11.6 min,P=0.000) were significantly longer in the distal group. The incidence of residual pulmonary hypertension in the distal group was significantly higher than that in the proximal group (42.1% vs.13.7%,P=0.013), while the incidence of pulmonary reperfusion injury postoperatively in the proximal group was significantly higher than that in the distal group (41.2% vs.10.5%, P=0.021). SwanGanz catheterization and blood gas index were obviously improved in both groups. However, the pulmonary artery systolic pressure (PASP, 67.8±21.3 mm Hg vs.45.5±17.4 mm Hg,P=0.000) and the pulmonary vascular resistance ［PVR, 52.8±32.1 kPa/(L·s) vs.37.9±20.7 kPa/(L·s),P=0.024］ in the distal group were significantly higher than those in the proximal group and the partial pressure of oxygen in arterial blood of the distal group was significantly lower than that of the proximal group (76.7±8.7 mm Hg vs.88.8±9.3 mm Hg,P=0.000). After operation, 70 patients were followed up with no deaths during the followup period. The time of the followup ranged from 2 to 81 months (32.7±19.6 months) with a cumulative followup of 191.8 patientyears. Three months after operation, 47 patients were examined by pulmonary artery computer tomography angiogram (PACTA) and isotope perfusion/ventilation scan, which showed that the residual occlusive pulmonary artery segment in the proximal group was significantly fewer than that in the distal group (isotope perfusion/ventilation scan: 2.2±11 segments vs. 4.7±2.1 segments, P=0.000; PACTA: 3.5±1.4 segments vs. 4.9±2.0 segments,P=0.009). The New York Heart Association (NYHA) functional class and 6 minute walk distance (6MWD) in the proximal group were significantly better than those in the distal group (1.7±0.5 class vs 2.3±0.4 class; 479.2±51.2 m vs. 438.6±39.5 m, P=0.003). Venous thrombosis in double lower limbs reoccurred in two patients. According to KaplanMeier actuarial curve, the freedom from reembolism at 3 years was 96.7%±2.8%. Bleeding complications occurred in three patients. The linear Bleeding rate related to anticoagulation was 2.47% patientyears. Conclusion Although the early and midlong term survival rate of PTE procedure to treat both proximal and distal types of CTEPH is agreeable, the recovery of the PASP, PVR and 6MWD, and blood gases in patients with proximal type of CTEPH are significantly better than those in patients with distal type of CTEPH. On one hand, anticoagulation can singularly provide enough protection to patients with proximal type of CTEPH, but on the other hand, diuretics and pulmonary hypertension alleviation drug should be added to the treatment regimen for patients with distal type of CTEPH after the procedure of PTE.
【Abstract】 Objective To improve the knowledge of idiopathic pulmonary arterial hypertension ( IPAH) to elevate the levels of early diagnosis and treatment. Methods The clinical data of 39 IPAH patients admitted in Beijing Anzhen Hospital from October 1997 to June 2010 were reviewed. Results Of the 39 IPAH patients, 14 cases were male and 25 cases were female, with an average age of ( 29. 7 ±16. 4)years old. Main clinical manifestations were exertional dyspnea/breathlessness ( 90. 9% ) , chest tightness( 72. 7%) , chest pain ( 30. 7% ) , cough ( 41. 0% ) , fatigue ( 48. 7% ) , syncope ( 35. 9% ) , cyanosis( 28. 2% ) , edema of lower extremity ( 43. 6%) , etc. As revealed through echocardiography, 39 cases had a mean systolic pulmonary arterial pressure ( SPAP) of ( 88. 8 ±24. 2) mmHg, with right ventricle enlargementin 37 cases and normal in 2 cases. Pulmonary angiography showed central pulmonary arterial dilatation with pruning of the peripheral blood vessels in 36 cases and normal in 3 cases. Right heart catheterization and acute vasodilator testing was performed with iloprost in 15 patients, systolic pulmonary arterial pressure was( 77. 6 ±27. 8 ) mm Hg, and positive rate was 20. 0% . 24 cases were misdiagnosed at admission, and misdiagnosis rate was 61. 5% . The average time of misdiagnosis was ( 26. 0 ±24. 5) months. 20 cases were treated with general medical therapy and 1 case was managed with lung transplantation before April 2008.Then 13 cases were given pulmonary arterial hypertension-targeted therapies, including sidenafil, iloprost or bosentan. Two patients died in hospital with a mortality rate of 5. 1% . Conclusions IPAH is uncommon and often occurs in young and middle-aged women. The symptoms are nonspecific and easily misdiagnosed.Echocardiography and pulmonary angiography are helpful in diagnosis. Right heart catheterization and acute vasodilator testing should be carried out if available. The patients should be early treated with pulmonary arterial hypertension-targeted therapies. Lung transplantation may be an option for end-stage cases.
【摘要】 目的 評價青年人頸動脈彩色多普勒超聲檢查的臨床意義，并探討青年人腦梗死與頸動脈粥樣硬化的關系。 方法 2008年2月-2011年3月，對256例青年腦梗死患者進行頸動脈彩色多普勒超聲檢測，選擇性別和年齡匹配的健康青年143例作對照組，比較兩組人群頸動脈彩色多普勒超聲特點的差異。 結果 腦梗死組頸動脈粥樣硬化斑以中等、強回聲斑塊為主，斑塊積分、血管壁內-中膜厚度（ITM值）及斑塊檢出率（34.77%，89例）均明顯高于對照組（Plt;0.01）；腦梗死組頸動脈硬化狹窄率及血栓發生率明顯高于對照組（Plt;0.05，lt;0.01）。 結論 青年腦梗死患者頸動脈粥樣硬化及血栓形成發生率均高，提示青年腦梗死患者的發病主要原因與動脈粥樣硬化有關。IMT值的增加、斑塊的檢出率及形態學特征等是頸動脈病變與腦梗死發生的有意義的檢測指標，在青年人腦梗死的防治中是有參考意義較大的超聲學指標。【Abstract】 Objective To assess the clinical significance of color Doppler ultrasonography in examining carotid arteries of young patients, and explore the relationship between cerebral infarction and carotid arteriosclerosis in young patients. Methods A total of 256 patients with cerebral infarction and 143 people without cerebral infarction diagnosed between February 2008 and March 2011 were assessed by color doppler ultrasonography. The ultrasonic characteristics of the two groups were compared and analyzed. Results Plaques incidence in cerebral infarction group was 81.43% which was higher than that in the control group. The most common sites of plaque formation were common carotid artery (CCA) bifurcate and the initial segment of internal carotid artery (ICA) in young people with cerebral infarction. In the cerebral infarction group, the rate of middle-echoic plaques was higher than that in the control group (Plt;0.05). The rate of low-grade carotid stenosis was higher in the cerebral infarction group than that in the control group (Plt;0.05). Conclusions Cerebral infarction occurrence in young people is closely correlated to carotid artery atherosclerosis. Ultrasonography can provide objective evidences for preventing and treating cerebral infarction.
Objective To investigate the diagnosis and treatment of pulmonary arterial hypertension ( PAH) due to rare causes. Methods The clinical presentation, laboratory testing, diagnosis and treatment of 4 patients with PAH associated with rare causes in Beijing Anzhen Hospital from January 2001 to March 2008 were analysed retrospectively. Results Primary biliary cirrhosis, hyperthyroidism, antiphospholipid syndrome and pulmonary artery sarcoma may cause PAH, which were improved after corresponding diagnosis and management. Conclusion PAH can result from rare causes. The enhancement of its recognition will help earlier diagnosis and treatment and improve the prognosis.
ObjectivesTo systematically review the efficacy and safety of ciprofloxacin for non-cystic fibrosis bronchiectasis.MethodsDatabases including PubMed, EMbase, The Cochrane Library, CBM, VIP, CNKI and WanFang Data were electronically searched from inception to August 2018 to collect randomized controlled trials (RCTs) on ciprofloxacin in the treatment of non-cystic fibrosis bronchiectasis. Two reviewers independently screened literature, extracted data, and assessed risk of bias of included studies. Then, meta-analysis was performed by using RevMan 5.3 software.ResultsA total of 9 RCTs involving 1 666 patients were included. The results of meta-analysis showed that: compared with control group, the ciprofloxacin more efficiently eradicate bacteria from sputum (RR=4.34, 95%CI 2.04 to 9.23, P=0.000 1), decrease risk of the exacerbations (RR=0.81, 95%CI 0.71 to 0.93, P=0.002) and the mean bacterial load (MD=–4.08, 95%CI –6.29 to –1.87, P=0.001). However, there were no significant differences between two groups in clinical efficiency and adverse events.ConclusionsThe current evidence shows that, ciprofloxacin can decrease the mean bacterial load and risk of the exacerbation, and more efficiently eradicate bacteria from sputum in non-cystic fibrosis bronchiectasis patients. Due to limited quality and quantity of the included studies, more studies are required to verify the conclusions.
【摘要】 目的 探討成人幕上低級別膠質瘤（WHO Ⅱ級）患者術后生活質量的影響因素。 方法 回顧性分析2008年10月—2010年5月經手術切除病變、術后病理證實為低級別膠質瘤的115例患者臨床資料，術后隨訪6~24個月。以患者年齡、性別、主要臨床癥狀、病變部位、病變大小及病理結果為自變量，以術后Karnofsky評分（KPS）改善為因變量，采用Logistic回歸分析研究相關影響因素。采用秩和檢驗比較不同組間KPS差異。 結果 隨訪至術后6個月，患者年齡、病變大小、病變部位、切除范圍以及是否有癲癇史在KPS比較中，其結果有統計學意義（Plt;0.05）。隨訪至術后12個月，切除范圍和癲癇史對KPS評分已無影響（Pgt;0.05）。病理類型、術前是否存在神經功能障礙與術后KPS改善在單因素和多因素比較中無統計學意義。 結論 患者年齡≤50歲、術前有癲癇史、腫瘤直徑≤4 cm、病變表淺、腫瘤全切除的患者術后KPS改善好于年齡gt;50歲、術前無癲癇史、腫瘤直徑gt;4 cm、病變深在、腫瘤次全切除的患者。患者術前是否存在神經功能障礙和病理類型與術后生活質量是否改善無明顯關系。復發也是影響患者術后KPS改善的因素。【Abstract】 Objective To assess the quality of life in adults with surgically managed cerebral supratentorial low grade glioma (WHO grade Ⅱ) and the relevant factors. Methods We retrospectively analyzed the clinical data of 115 patients with histologically proven supratentorial low grade glioma enrolled at West China Hosptial from October 2008 to May 2010. Follow-up lasted for 6 to 24 months after operation. Logisitc regression analysis is used to test the relevant factors with age, gender, main clinical manifestations, lesion location, lesion size and pathological results as the independent variables, and Kamofsky postoperative scale (KPS) scores as dependent variable. KPS scores of different groups were analyzed using the rank test. Results After 6 months of follow-up, we found that age, size, location, extent of surgical excision and eplispy history showed a statistical significance in KPS comparison (Plt;0.05). Till the 12th month in the follow-up, the extent of surgical excision and eplispy history were not statistically significant any more (Pgt;0.05). Histology type and neurological deficit had no relationship with KPS improvement in both single factor analysis and multivariate analysis. Conclusions Patients with an age older than 50 years, preoperative epilepsy history, the largest diameter of the tumor less than 4 cm, shallow lesions, and complete tumor resection have a better KPS improvement after operation than those with corresponding opposite conditions. There is no obvious relationship between histology type, neurologic deficits and KPS improvement after operation. Recurrence is also a factor influencing KPS improvement after operation.
Cryogels are a type of hydrogel material which are fabricated by cryopolymerization at subzero temperature. Due to their unique macroporous structure, shape memory properties and injectability, cryogels have gained significant interest in the fields of tissue engineering for encouraging the repair and regeneration of injured tissues. In this review, the basic concepts relevant to cryogels are introduced, and then the fabrication principle, the process parameters and the unique properties of cryogel are discussed. Next, the latest advances of cryogels as three-dimensional scaffold for various tissue engineering applications are given. Finally, this review summarizes the current limitations of cryogels, and strategies to further improve their properties for tissue engineering. The purpose of this article is to provide a reference guide for the researchers in related fields.
Objective To evaluate the changes in oral health knowledge, behavior and attitude of undergraduate students majoring in preventive medicine before and after the course “Oral Preventive Medicine”, and to provide empirical evidence for the teaching reform of preventive medicine undergraduate programs, thereby enhancing teaching effectiveness and the significance of the course. Methods A questionnaire survey was conducted among the undergraduate students majoring in preventive medicine at the West China School of Public Health, Sichuan University in 2024, before and after the compulsory course “Oral Preventive Medicine”. Results A total of 124 undergraduate students majoring in preventive medicine were surveyed. After the course, undergraduate students majoring in preventive medicine had changed their oral related knowledge, behaviors, and attitudes. The correctness of the answers and the usage rate of Bass brushing technique were both increased; The self-evaluation of oral health status (χ2=5.017, P=0.025) and brushing effect (χ2=22.200, P<0.001) were both improved; The perceived benefits of brushing (t=2.515, P=0.013) and behavioral intention to brush teeth (t=5.381, P<0.001) were both improved, while the perceived barriers to brushing was reduced (t=?3.999, P<0.001). Conclusions The course “Oral Preventive Medicine” effectively enhanced the oral health literacy of undergraduate students majoring in preventive medicine, confirming its practical value in undergraduate teaching reform. It provides an important reference for optimizing the curriculum system of preventive medicine, has positive significance for cultivating public health talents with comprehensive health literacy.
Objective To investigate the expression of stromal cell-derived factor-1 (SDF-1) and its clinical significance in blood plasma of patients with breast tumor. Methods The level of SDF-1 protein was examined by enzyme linked immunosorbent assay (ELISA) in blood plasma of 26 patients with breast benign tumor and 52 patients with breast cancer. Results The SDF-1 protein in blood plasma was detected in both breast benign tumor patients and breast cancer ones. The level of SDF-1 protein in patients with breast cancer was higher than that in ones with breast benign tumor, and there was a statistical difference between them （P=0.000）. In patients with breast cancer, the level of SDF-1 protein in axillary lymph node (ALN) metastasis positive patients was significantly higher than that in ALN metastasis negative ones （P=0.036）. Conclusion The level of SDF-1 protein in blood plasma may be a specific tumor marker. Its level is correlated with lymph node involvement in breast cancer.
ObjectiveTo evaluate the clinical efficacy of polidocanol foam sclerotherapy and to establish a reliable evidence base for its application in the treatment of hemorrhoids. MethodsA systematic literature search was conducted in PubMed, Embase, Web of Science, the Cochrane Library, China National Knowledge Infrastructure, Wanfang Data, Chongqing VIP, and the Chinese Medical Journal Full-text Database for randomized controlled trials published from January 1, 2000 to December 1, 2024. Included patients were assigned to either an intervention group group (treated with polidocanol foam sclerotherapy) or a control group (receiving other interventions). Data from the included studies were pooled and analyzed using a meta-analysis model in Review Manager (RevMan) software, version 5.4. The primary outcomes were the clinical cure rate, postoperative recurrence rate, and incidence of postoperative bleeding. The secondary outcomes were the pain visual analogue scale (VAS) score and the incidence of severe postoperative pain. ResultsA total of 12 RCTs involving 1 380 patients with hemorrhoids were included. The pooled results demonstrated that, compared to the control group, the intervention group showed a significantly higher clinical cure rate [RR(95%CI)=1.36(1.26, 1.47)], as well as lower postoperative recurrence rate [RR(95%CI)=0.43 (0.29, 0.65)] and postoperative bleeding rate [RR(95%CI)=0.75(0.60, 0.93)]. However, there were no statistically significant differences between the groups in terms of postoperative pain VAS score [WMD(95%CI) =–0.53(–1.15, 0.09)] or the incidence of severe postoperative pain [RR(95%CI)=0.81(0.34, 1.94)]. ConclusionsPolidocanol foam sclerotherapy demonstrates superior clinical efficacy in terms of clinical cure rate, postoperative recurrence rate, and postoperative bleeding rate, confirming its effectiveness as a treatment for hemorrhoids.