Research on mixed teaching platform of pediatric clinical laboratory practice teaching based on the Laboratory Quality Management System / 中华医学教育探索杂志

Objective:To explore application of mixed teaching platform in the clinical practice teaching of the laboratory medicine in Children's hospitals.Methods:We constructed a mixed online and offline teaching platform based on the Laboratory Quality Management System (LQMS) in the Children's Hospital of Chongqing Medical University. The undergraduates from Batch 2016 ( n=15) and Batch 2018 ( n=12) of College of Laboratory Medicine of Chongqing Medical University were taken as control group and experimental group respectively. Traditional teaching method was adopted by the control group, and the mixed teaching method was adopted by the experimental group. The results of two groups' clinical practice assessment, rate of outstanding students (total score ≥ 90) and rate of satisfaction (score ≥ 90) were compared to evaluate the teaching effect. SPSS 17.0 was used to conduct t-test and Chi-square test. Results:The database of teaching platform includes 68 teaching cases, 198 pieces of courseware, 305 clinical cases and 3 036 atlases. The test bank has accumulated 4 657 tests, covering clinical laboratory, immunology, biochemistry, microbiology and blood transfusion. The results of students in experimental group were significantly better than those of the control group [the score of clinical practice assessment: (85.90±5.04) vs. (78.90±6.75)( P<0.05); rate of outstanding students: 33.3% (4/12) vs. 6.7% (1/15), P>0.05; rate of satisfaction: 86.7% (13/15) vs. 100.0% (12/12) ( P>0.05). Conclusion:The mixed online and offline teaching platform based on the LQMS is highly recognized by students and can significantly improve the effect of clinical practice teaching, which can provide typical medical case teaching at any time and make up for limited case type in children's hospital.

Mid term results of fenestrated branch stent technique for the treatment of thoracoabdominal aortic aneurysms / 中华普通外科杂志

Objective:To evaluate the mid-term results of fenestrated/branched endovascular aortic repair (f/b EVAR) for the treatment of thoracoabdominal aortic aneurysms. M ethods The clinical data of 105 thoracoabdominal aortic aneurysm patients treated with f/b EVAR at the Department of Vascular Surgery of Nanjing Drum Tower Hospital from 2018 to 2019 were retrospectively analyzed. Results:There were 43 cases of thoracoabdominal aortic aneurysm and 62 cases of thoracoabdominal aortic aissection.A total of 336 branch arteries were reconstructed,and technical success rate was 94.3%. 100 cases (95.2%) were followed-up, 6 cases (5.7%) received reoperation interventions, and 11 cases (10.5%) died. During the follow-up period, 69 cases had complete imaging data. Based on the recent CT date of the thoracoabdominal aorta, 58 patients hael positive aortic remodeling and 11 patients hael negative and indeterminate remodeling; there were 31 cases (29.5%) of endoleaks, including 7 cases (6.7%) of type Ⅰb endoleaks, 8 cases (7.6%) of type Ⅱ, 1 case (0.95%) of type Ⅲa, 13 cases (12.4%) of type Ⅲc endoleaks and 2 cases (1.9%) of type Ⅳ. Conclusions:The mid-term follow-up results were satisfactory for TAAA treated with f/b EVAR. Internal leakage remains key point for f/b EVAR.

Right visual double lumen endotracheal tube versus common right double lumen endotracheal tube lung isolation technique: A randomized controlled study / 中国胸心血管外科临床杂志

@#Objective    To compare the clinical efficacy between right visual double lumen tube (VDLT) intubation and right common double lumen tube (DLT) intubation in lung isolation technique. Methods    A total of 57 patients undergoing thoracoscopic surgery with right DLT lung isolation technique in the First People's Hospital of Chenzhou City and West China Hospital from June 2020 to June 2021 were randomly divided into two groups: a DLT group (n=29, 16 males and 13 females, with a mean age of 54.3±13.2 years) and a VDLT group (n=28, 18 males and 10 females, with a mean age of 55.1±13.7 years) at 1 : 1 with random number table generated by the computer. The clinical data of the two groups were compared. Results    Compared with the DLT group, the catheter positioning time in the VDLT group was statistically shorter (74.9±47.5 s vs. 151.6±88.9 s, P<0.001), the right upper lung occlusion rate (21.4% vs. 51.7%) and the intraoperative re-adjustment catheterization rate (14.3% vs. 48.3%) were lower (P<0.05). The quality of lung collapses immediately after thoracotomy (67.9% vs. 24.1%) and 20 minutes after thoracotomy (100.0% vs. 75.9%) were improved (P<0.05). There was no significant difference in the rate of fiberoptic bronchoscope assistance for positioning, or the incidence of pharynx pain and hoarseness between the two groups (P>0.05). Conclusion    Compared  with common DLT, VDLT is more efficient, accurate and intuitive in the location of right bronchial intubation.

LuxR-Type SCO6993 Negatively Regulates Antibiotic Production at the Transcriptional Stage by Binding to Promoters of Pathway-Specific Regulatory Genes in Streptomyces coelicolor.

SCO6993 (606 amino acids) in Streptomyces coelicolor belongs to the large ATP-binding regulators of the LuxR family regulators having one DNA-binding motif. Our previous findings predicted that SCO6993 may suppress the production of pigmented antibiotics, actinorhodin, and undecylprodigiosin, in S. coelicolor, resulting in the characterization of its properties at the molecular level. SCO6993-disruptant, S. coelicolor ΔSCO6993 produced excess pigments in R2YE plates as early as the third day of culture and showed 9.0-fold and 1.8-fold increased production of actinorhodin and undecylprodigiosin in R2YE broth, respectively, compared with that by the wild strain and S. coelicolor ΔSCO6993/SCO6993+. Real-time polymerase chain reaction analysis showed that the transcription of actA and actII-ORF4 in the actinorhodin biosynthetic gene cluster and that of redD and redQ in the undecylprodigiosin biosynthetic gene cluster were significantly increased by SCO6993-disruptant. Electrophoretic mobility shift assay and DNase footprinting analysis confirmed that SCO6993 protein could bind only to the promoters of pathway-specific transcriptional activator genes, actII-ORF4 and redD, and a specific palindromic sequence is essential for SCO6993 binding. Moreover, SCO6993 bound to two palindromic sequences on its promoter region. These results indicate that SCO6993 suppresses the expression of other biosynthetic genes in the cluster by repressing the transcription of actII-ORF4 and redD and consequently negatively regulating antibiotic production.

Progress of Traditional Chinese Medicine in the prevention and treatment of arterial thrombosis / 国际中医中药杂志

Atherosclerosis (AS) is a chronic and progressive arterial disease. It is an important cause of the occurrence and development of cardiovascular and cerebrovascular diseases. With the development of Traditional Chinese Medicine (TCM), TCM has many advantages in the therapy of AS, with less adverse reactions. Studies have shown that TCM can resist AS, and the mechanism mainly belongs to regulating lipid metabolism, anti-lipid peroxidation, anti-inflammation, anticoagulation, and protecting the structure and function of vascular endothelial cells. The mechanism of TCM for AS is warranted to be studied systematically, and the chemical components need to be further clarified.

Healthy City construction survey among residents living in Hangzhou City / 预防医学

Objective@#To investigate the awareness of and participation in Healthy City construction among residents in Hangzhou City, so as to provide insights into promotion of participation in Healthy City construction.@*Methods@#Residents at ages of 15 to 75 years were sampled using the multi-stage stratified random sampling method, from 30 townships in Jianggan, Xiaoshan and Tonglu counties of Hangzhou City from November 2019 to July 2020, and a questionnaire survey of 10 representative projects pertaining to Healthy City construction in Hangzhou City was performed to investigate the awareness of and participation in Healthy City construction.@*Results@#A total of 5 559 questionnaires were allocated, and 5 211 valid questionnaires were recovered, with an effective recovery rate of 93.74%. The respondents had a mean age of ( 43.82±17.25 ) years, and included 2 280 males ( 43.75% ) and 2 931 females ( 56.25% ). The overall standardized awareness and participation rates of Healthy City construction were 81.73% and 48.58% among the respondents. The projects with the three highest awareness included healthy environment improvements ( 92.67% ), travelling by public transportation ( 92.22% ) and tobacco control action ( 91.04% ), while the projects with the three lowest awareness included chronic disease management ( 75.57% ), maternal and child healthcare ( 72.73% ) and “Healthy Cell” Program ( 45.56% ). The projects with the three highest participation rates included travelling by public transportation ( 74.59% ), healthy environment improvements ( 65.17% ), tobacco control action ( 61.52% ), while the projects with the three lowest participation rate included chronic disease management ( 35.92% ), “Healthy Cell” Program ( 34.96% ) and maternal and child healthcare ( 33.20% ).@*Conclusions@# The overall proportion of participation in Healthy City construction is low among residents in Hangzhou City, and notably, the awareness rate of and the proportion of participation in chronic disease management, maternal and child healthcare and “Healthy cell” Program are both low.

Hemodynamic Study on the Relationship Between Collateral Circulation Caused by Iliac Vein Compression and Deep Venous Thrombosis / 医用生物力学

Objective To explore the relationship between the establishment of collateral circulation caused by iliac vein compression syndrom(IVCS) and the deep venous thrombosis (DVT). Methods Different types of ideal collateral circulation models and IVCS patient-specific models were numerically simulated using computational fluid dynamics (CFD) in combination with the blood stasis model. The relationship between blood retention and collateral types and cross-sectional area was studied, and the relationship with thrombosis was explored. Results Wall shear stress (WSS) at the distal end part of each ideal model was 0.3 Pa. After four cardiac cycles, the residual blood stayed at the stenosis and the distal end part for the lumbar ascending and pelvic type models, the old blood volume fraction (OBVF) varied with collateral cross-sectional areas, ranging from 5%-90% and 70%-80%, respectively. The OBVF of the coexistence model was above 80%. The WSS at the distal end part of the patient-specific model was 0.9 Pa, and the OBVF at the distal end part was 51.5%. Conclusions The stenosis and the distal end part are most prone to blood stasis, and closely related with DVT. The larger the collateral cross-sectional area, the more serious the blood stagnation. Blood stagnation of the coexistence model is higher compared with the model with lumbar ascending type and pelvic type.

Research progress of primary aortic mural thrombus / 中华胸心血管外科杂志

Primary aortic mural thrombus(PAMT) is a relatively rare clinical disease with unclear pathogenesis. In addition to hypercoagulability as a recognized risk factor, other related factors have been mentioned in the literatures. Aortic isthmus is the most common site of thrombosis, which may be related to its anatomical characteristics and hemodynamics. The onset of this disease is insidious, but the complications are dangerous. At present, the best treatment strategy for this disease is not clear, and simple anticoagulant therapy, aortic open surgery and endovascular treatment have been reported successfully. This article reviews the research progress of primary aortic mural thrombosis and reports as follows.

Association between FSAP 1601G>A polymorphism and venous thromboembolism risk: A meta-analysis.

OBJECTIVE: Previous several studies have shown that factor VII-activating protease (FSAP) gene 1601G>A polymorphism is related to the occurrence of venous thromboembolism, but the results are inconsistent and controversial. Therefore, we conducted a meta-analysis to explore the association between FSAP 1601G>A polymorphism and venous thromboembolism susceptibility. METHODS: We managed a systematic literature search through Pubmed, Embase, Web of Science, China National Knowledge Infrastructure, and WanFang databases to collect research data related to FSAP gene 1601G>A polymorphism and susceptibility to venous thromboembolism published before May 2019. Data analysis was performed through Revman 5.3 and Stata 12.0 software, the pooled odd ratios and 95% confidence intervals were calculated. Additionally, the sensitivity analysis and publication bias assessment were also performed. RESULTS: A total of seven case-control studies were included and evaluated, including 2411 venous thromboembolism cases and 2850 controls. The meta-analysis results revealed that the FSAP 1601G>A mutation is associated with venous thromboembolism risk, and statistically significance was observed under three genetic comparison models (A: G, odds ratio: 1.33, 95% confidence interval: 1.07-1.66; GA: GG, odds ratio: 1.34, 95% confidence interval: 1.06-1.68; and GA + AA: GG, odds ratio: 1.33, 95% confidence interval: 1.06-1.66). CONCLUSION: This study demonstrated that the FSAP 1601G>A polymorphism may be associated with venous thromboembolism susceptibility.

Efficacy and safety of different doses of Rivaroxaban after catheter directed thrombolysis in the treatment of lower extremity deep venous thrombosis / 中华普通外科杂志

Objective:To investigate the efficacy and safety of different doses of rivaroxaban in the treatment of lower extremity deep venous thrombosis after catheter directed thrombolysis.Methods:Clinical data of 92 patients with lower extremity deep venous thrombosis received catheter directed thrombolysis at Nanjing Drum Tower Hospital from Jun 2017 to Dec 2018 were collected and analyzed. Patients were divided into Rivaroxaban group (10 mg qd), Rivaroxaban group (20 mg qd) and Warfarin group according to the anticoagulant therapy, and followed up for 6 months. The change of limb swelling rate, lower limb venous patency rate, venous clinical severity score(VCSS), score of chronic venous insufficiency questionnaire(CIVIQ) and adverse reactions were analyzed to evaluate the curative effect and safety during 6 months of follow-up.Results:There was no significant difference in the change of limb swelling rate, lower limb venous patency rate, VCSS score, and CIVIQ score between the three groups(all P>0.05). The total hemorrhage events in warfarin group were significantly higher than the other two groups. Conclusions:The efficacy and safety of low-dose rivaroxaban (10 mg qd) in the treatment of lower extremity deep venous thrombosis after catheter directed thrombolysis were comparable to that of Rivaroxaban (20 mg qd).

Physician-modified fenestrated stent grafts for aortic dissection aneurysm / 中华普通外科杂志

Objective To evaluate the safety and efficacy of fenestrated endovascular aortic repair (fEVAR) using physician-modified stent grafts(PMSGs) to repair aortic dissection aneurysm.Methods Nine consecutive patients who underwent fEVAR using PMSGs from Jan 2018 to Jun 2018 were retrospectively reviewed.Results Nine PMSGs (6 Ankura stent grafts,3 COOK Zenith stent grafts) were deployed.Initial technical success rate was 97.0％ (32 of 33).Mean operative time was (303 ± 51) min.There were no in-hospital death and no perioperative neurology complications.All the patients survived at a median follow-up of 6.1 mouths (ranging 3-10 months).During follow up,no postoperative complications occurred,all target vessels remained patent and no fenestration-related type Ⅰ endoleak were observed.There are 3 cases of type Ⅱ and 2 cases of type Ⅲ endoleaks respectively.Conclusions FEVAR using PMSGs may be a viable alternative for patients with post aortic dissection aneurysm.

Treatment of thoraco-abdominal aortic disease with fenestrated stent-graft or branch stent-graft technique guided by 3D printing / 中华普通外科杂志

Objective To summarize the experience and effect of applying 3D printing to repair thoraco-abdominal aortic disease with fenestrated stent-graft or branch stent-graft technique.Methods From Oct 2017 to Sep 2018,22 patients with thoracic and abdominal aortic diseases,including aortic arterial dissection (9 patients) and aortic aneurysm (13 patients) were admitted.There were 19 males and 3 females,with mean age of (60 ± 13) years.Before the surgery 3D printing model guide plate was made according to CT,and then the pre-fenestrated stent-graft technique,branch stent-graft technique and other techniques were adopted in the surgery to perform endovascular repair.Resuits All of the operations were completed in one stage without open surgery.The average operation time was (5.67 ± l.23) hours without renal insufficiency and paraplegia,1 branch artery was lost during operation (1.4％) and 1 patient died (4.5％).Conclusion The application of 3D printing in the treatment of thoraco-abdominal aortic disease involving branches is more accurate than traditional measurement and localization.It had a safe and reliable short-term result.

Endovascular repair combined with fenestrated stent grafts in treating aortic arch lesions / 中华胸心血管外科杂志

Objective@#To evaluate endovascular repair combined with fenestrated stent grafts for the treatment of aortic dissection or aneurysm involving aortic arch.@*Methods@#From Jun 2017 to Dec 2018, 30 patients of complicated aortic arch lesions were treated with endovascular repair combined with fenestrated endografts. 26 male and 4 female, aged(53±16) years. All patients had hypertension. 12 cases were treated via needle based in situ fenestration, another 16 cases using physician modified stent grafts, while 2 cases combining these two methods to achieve optimal fenestration. Patients were followed by receiving CTA for mortality, patency of bridging stents, endoleaks and complications.@*Results@#Operations were performed successfully in all cases. The median follow-up is 8.5 months. There was no aorta-related mortality. 1 patient developed cerebral infarction and 1 had hydropericardium. Type Ⅲ endoleaks were observed in 5 patients, no reintervention. All target vessels were patent during the follow up.@*Conclusion@#Fenestrated stent grafts shows satisfactory short-term outcomes in treating aortic arch lesions.

Study on mechanical properties of nitinol iliac vein stent and animal test under different release scales / 生物医学工程学杂志

The mechanical properties of nitinol iliac vein stent (NIVS) have been studied by many scholars at home and abroad, but the study on the mechanical properties of iliac vein stent under different release scales has not been reported yet. Based on the finite element analysis method, the mechanical properties of three self-developed NIVS were studied to reveal the influence of stent diameters (12, 14, 16 mm) and different release scales (80%, 90%) on its strength, fatigue life and vein wall biomechanical properties. With an increases in the release scales, the equivalent elastic strain, fatigue strength safety factors, and vessel wall equivalent stress exhibited a downward trend, while the most stressed cross-section coincided with the arc of stent-connecting rods. Through 30, 60 and 90 days' animal test, a narrowed vascular model was established in the iliac veins of 12 pigs, and the developed iliac vein stents were implanted to comprehensively evaluate the safety and effectiveness of the stent, and at the same time the mechanical properties of stents were verified to provide important reference for the type inspection and clinical trials of follow-up products.

Hemodynamic analysis of a new retrievable vena cava filter / 生物医学工程学杂志

Vena cava filter is a filter device designed to prevent pulmonary embolism caused by thrombus detached from lower limbs and pelvis. A new retrievable vena cava filter was designed in this study. To evaluate hemodynamic performance and thrombus capture efficiency after transplanting vena cava filter, numerical simulation of computational fluid dynamics was used to simulate hemodynamics and compare it with the commercialized Denali and Aegisy filters, and in vitro experimental test was performed to compare the thrombus capture effect. In this paper, the two-phase flow model of computational fluid dynamics software was used to analyze the outlet blood flow velocity, inlet-outlet pressure difference, wall shear stress on the wall of the filter, the area ratio of the high and low wall shear stress area and thrombus capture efficiency when the thrombus diameter was 5 mm, 10 mm, 15 mm and thrombus content was 10%, 20%, 30%, respectively. Meanwhile, the thrombus capture effects of the above three filters were also compared and evaluated by in vitro experimental data. The results showed that the Denali filter has minimal interference to blood flow after implantation, but has the worst capture effect on 5 mm small diameter thrombus; the Aegisy filter has the best effect on the trapping of thrombus with different diameters and concentrations, but the low wall shear stress area ratio is the largest; the new filter designed in this study has a good filtering and capture efficiency on small-diameter thrombus, and the area ratio of low wall shear stress which is prone to thrombosis is small. The low wall shear stress area of the Denali and Aegisy filters is relatively large, and the risk of thrombosis is high. Based on the above results, it is expected that the new vena cava filter designed in this paper can provide a reference for the design and clinical selection of new filters.

Artificial neural network models based on questionnaire survey for prediction of breast cancer risk among Chinese women in Shanghai / 肿瘤

Objective: To develop a breast cancer risk predictive model based on questionnaire survey data using artificial neural network (ANN) approach, and thus to provide an effective tool for initial screening of breast cancer. Methods: During the period of 2008-2012, an organized breast cancer screening project was conducted among 15 148 healthy women at age of 35-74 years in Minhang District of Shanghai, China. The information on demographic characteristics, reproductive factors, history of any breast diseases, and family history of breast cancer was collected by in-person interview using a structured questionnaire. Sixty-six breast cancer cases were identified through pathological examination. Logistic backward regression was used to select significant risk factors. An ANN model was developed and tested by Feed-forward Networks and limited memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) method. Results: The variables including age, age at menarche, family history of breast cancer, breast lumps, nodules or thickening, years since first delivery, and days of fatty meat intake per week were included in ANN model. In the training set, the model achieved an accuracy of 66.5% [95% confidence interval (CI): 65.6-67.4], a sensitivity of 63.8% (95% CI: 50.1-77.6), a specificity of 66.5% (95% CI: 65.6-67.4), and the area under receiver operating characteristic curve (AUC) of 0.706 (95% CI: 0.635-0.777). In the test setting, the model had an accuracy of 64.9% (95% CI: 63.5-66.3), a sensitivity of 79.0% (95% CI: 60.6-97.3), a specificity of 64.8% (95% CI: 63.4-66.2) and an AUC of 0.762 (95% CI: 0.655-0.869). Conclusion: The ANN model based on questionnaire survey data has predictive value of breast cancer risk in Chinese women in Shanghai, and has potential to be used in risk self-assessment and preliminary screening in population.

Clinical study of early application of toe flap to repair thumb damaged electrical burns / 中国医师杂志

Objective To study the surgery effect on early application of toe flap to repair thumb severe electric bum.Methods From July 2007 to October 2017,a total of 25 cases of thumb severe electric burn were repaired by thumb toe flap grafting.The function of the finger after operation was evaluated comprehensively,and the effect of 72 hours before and after the injury was compared.Results All the flaps survived and the finger function was excellent.The excellent and good rate of 25 cases was 72％.The excellent and good rate of 72 hours before and after injury were 85.7％ and 54.5％ respectively.5 cases had bad wound complications after operation.1 cases were operated within 72 hours after injury,and 4 cases were operated after 72 hours.Conclusions The early application of toe flap to repair severe electric bum thumb can maximize the recovery of function of the thumb.The earlier the operation,the fewer complications,the better the repair effect.

Study on the Effect and Mechanism of Euphornin Inducing the Apoptosis of Cervical Cancer Hela Cells / 中国药房

OBJECTIVE:To study induction effect of euphornin on the apoptosis of cervical cancer Hela cells and its mechanism. METHODS:The cervical cancer Hela cells were divided into blank control group,cisplatin group(positive control, 10 mg/L) and euphornin low-dose,medium-dose and high-dose groups (50,100,200 mg/L). They were treated with relevant medicine. The inhibitory effect of Hela cells proliferation was tested by MTT assay after 24,48,72 h of medicine treatment. The apoptotic rate of Hela cells was measured by flow cytometry after 48 h of medicine treatment. Morphology of nucleus was detected by Hoechst 33258 staining. The protein expression of Cyt-C,Bcl-2,Bax,Caspase-3,Caspase-8,Caspase-9 and Caspase-10 were detected by Western blot assay. RESULTS:Compared with blank control group,inhibitory rate of cell proliferation and cell apoptosis rate were increased significantly in cisplatin group and euphornin groups(P＜0.05 or P＜0.01),and obvious staining, deformation,shrinking,fragmentation or apoptotic bodies was found in nucleus. Compared with blank control group,the protein expression levels of Cyt-C,Caspase-8 and Caspase-9 in euphornin low-dose,medium-dose and high-dose groups were increased significantly,while the protein expression level of Bcl-2 and Bcl-2/Bax ratio were decreased significantly(P＜0.05 or P＜0.01);the protein expression levels of Bax,Caspase-3 and Caspase-10 in euphornin medium-dose and high-dose groups were increased significantly(P＜0.05 or P＜0.01). CONCLUSIONS:Euphornin can significantly inhibit the proliferation of Hela cell and promote cell apoptosis,the effect of which will be achieved by activating the Caspase-dependent mitochondrion apoptosis pathway.

Concurrent hybrid AngioJet and stenting in the treatment of acute deep vein thrombosis of the lower extremity caused by Cockett syndrome / 中华普通外科杂志

Objective To study the short term results for Cockett syndrome resulting in acute deep vein thrombosis (DVT) of the lower extremity treated by AngioJet.Methods 32 Cockett syndrome resulting in acute DVT cases treated by hybrid AngioJet thrombolysis and stenting or catheter-directed thrombolysis (CDT) from Feb 2014 to Jan 2017 were retrospectively reviewed.There were 16 patients treated by AngioJet thrombolysis and stent (group A).The other 16 cases were treated by CDT (group B).All the 32 patients received warfarin at least 6 month after operation.Results The mean time of hospital stay was shorter in group A than B [(6.8 ± 2.1) d vs.(10.8 ± 3.2) d,P ＜ 0.05].The amount of urokinase was less in grpup A than in B [(101.8 ± 45.2) U vs.(312.8 ± 85.1) U,P ＜ 0.05].29 patients were followed up.The score of vein patency between the two groups had no significant difference (P ＞ 0.05).Conclusion Compared with CDT group,AngioJet thrombolysis and stent group has a less total dosage of urokinase,shorter hospital stay.

Effects of AngioJet mechanical thrombus aspiration system for patients of acute pulmonary embolism / 中华普通外科杂志

Objective To analyze the clinical efficacy of AngioJet mechanical thrombus aspiration system for patients with acute pulmonary embolism (PE).Methods Clinical data of 28 cases of acute pulmonary embolism (PE) patients was retrospectively analyzed,8 cases (AngioJet group) were treated with AngioJet + CDT,20 cases were treated by pigtail catheter thrombolysis(CDT group)alone,the total amount of urokinase,thrombolytic time,related detection index and the occurrence of complications were compared between the two groups.Results The dosage of urokinase in the two groups was (72.5 ± 44.4) × 104U and (169.0 ± 59.3) × 104 U respectively,P ＜ 0.05.The catheter indwelling time was (1.0 ± 0.89) days and (2.65 ± 0.86) days respectively (P ＜ 0.05).There were no statistically significant differences in SBP,PaO2,SpO2 and D-dimer between the two groups before and after operation (P ＞ 0.05).Conclusion Both AngioJet and CDT are effective methods for the treatment of acute PE.The combination of the two methods can accelerate the improvement of clinical symptoms,reducing the dosage of thrombolytic drugs and the occurrence of surgery-related complications.