Objective To optimize the extraction process of Yangwei Jinshi Granules. Methods An orthogonal test was adopted in the study. With the paste-forming rate, the content of extract and the content of hesperidin of Yangwei Jinshi Granules as indices, data processing was carried out with grading method of synthesizing multiple indexes for optimizing the extraction condition. Results The best extraction technology was as follows:boiled 2 times, first with 10 times amount of water for 1.5 h, and then boiled with 8 times amount of water for 1 h. Conclusion The optimized process is reasonable, stable and economic for Yangwei Jinshi Granules.

Objectives To investigate the proliferation and apoptosis of smooth muscle cells(SMCs) after implantation of NiTi radioactive stents. Methods Radioactive and nonradioactive stents were implanted in abdominal aortas of 76 rabbits.The proliferation and apoptosis of SMCs were observed using immunohistochemistry and TUNEL.Results (1) Neointima areas on radioactive stents were less than those on nonradioacvtive stents at 1-month and 3-month respectively (P0 05).(2)The expressions of PCNA were lower in radioactive stent groups at different times compared with those of controls(P0.05).Conclusions (1) Radioactive stents can reduce the neointima areas on the implanted stents.(2)Radioactive stents can inhibit the proliferation of SMCs.(3)Radioactive stents promote the apoptosis of SMCs.

Ohjective To study the effects of emphysema on peripheral skeletal muscle biomechanics,pathomorphology and oxidative metabolism in rats.Methods Twenty Sprague-Dawley rats were used and randomized equally into a control group and an emphysema group.A dose of 40 U/100 g body weight of porcine pancreatic elastase was instilled into the trachea of the animals of the emphysema group to model emphysema,while the same volume of saline was instilled into those of the control group.Twenty weeks after instillation,in situ mechanical properties of gastrocnemius were evaluated.Gastrocnemius fiber type composition and capillary density (CD) were assessed by using ATPase staining.Lipofuscin accumulation (LI/F) was determined with the ferric-ferricyanide reduction test technique.Immunohistochemistry was used for the detection of nitric oxide synthases (NOS) in gastrocnemius.The muscle biopsy homogenate was used to measure the activity of superoxide dismutase (SOD),catalase (CAT),NOS,total antioxidant capacity (T-AOC) and the content of nitric oxide (NO).Results Emphysema increased fatigability and decreased the recovery rate of gastrocnemius muscle [(145.0 ± 55.4) s vs (55.2 ± 29.3)s,P ＜ 0.05].Compared to control,the gastrocnemius muscle in rats with emphysema had a lower CD [(513.9±71.1)n/mm2 vs (578.6 ±59.9)n/mm2,P ＜0.05] and a decreased proportion of type I fibers [(16.0 ±5.0)％ vs (30.7 ±4.1) ％,P ＜0.05],with a reciprocal increase in type II b/x fibers [(27.3 ±4.8)％vs (11.0±3.2)％,P＜0.05].LI/F was higher (3.3±0.5 vsl.7±0.4,P＜0.05) and the activity of SOD,CAT and T-AOC was increased in emphysema group.Compared with control,rats with emphysema demonstrated a lower expression of endothelial NOS (eNOS) (1.9 ± 0.5 vs 3.4 ± 0.6,P ＜ 0.05),and an equivalent expression of neuronal NOS (nNOS) (4.7 ± 1.0 vs 5.1 ± 0.8,P ＞ 0.05) in the gastrocnemius muscle.The inducible NOS (iNOS) was not found in both groups.Conclusions Emphysema could induce biomechanical,pathomorphological and oxidative metabolic changes in peripheral skeletal muscle.

Objective To investigate the results of defect reconstruction using anterolateral thigh free flap in medial and lateral approaches.Methods We reviewed the soft tissue defect reconstruction in 200 patients from February 2010 to June 2014 with anterolateral thigh flap in medial or lateral approach,to compare the operative time and donor site morbidity.Results The mean time of flap raising in medial group was (45 ± 4.5) minutes,while in lateral group was (65 ± 3.5) minutes.In medial group,fascial lata was closed directly in 39 cases (39％),while fascial lata was closed directly in all the cases (100％) in lateral group.All the 200 flaps survived uneventfully.All the donor sites healed smoothly.No infection occurred.An 8 to 32 months follow-up revealed a high satisfactory rate from the patients.No sensory deficit or functional impairment was noted in the donor sites.Conclusions Both in medial and lateral approach can achieve safely harvesting free anterolateral thigh flap.

Objective To study the clinical efficacy of autologous peripheral blood stem cell transplantation for the treatment myocardial infarction,in the same period of coronary artery bypass grafting (CABG).Methods From January 2012 to January 2015,76 patients with myocardial infarction were selected.Patients were divided into transplantation group (n =46) and control group (n =30) on the basis of whether being treated by autologous peripheral blood stem cell transplantation.After myocardial infarction patients were taken to the hospital with the therapy of conventional drug,5 days before CABG,transplantation group was given the autologous peripheral blood stem cell mobilization and expansion,24 hours before CABG,taking autologous peripheral blood stem cell collection.76 patients took CABG with non-cardiopulmonary by pass,transplantation group was given autologous peripheral blood stem cell via transplantation vessels and subepicardial,while the control group was not given the injection of autologous peripheral blood stem cell.The LV morphology,wall motion score index (WMSI) and index of cardiac function before and after the operation in both groups were evaluated by echocardiography.Results Six months after CABG,there was a significant decrease in Left ventricular end-diastolic diameter and wall motion score index,Left ventricular ejection fraction was increased.The indexes of cardiac function in the transplantation group were better than the control group.Conclusion Autologous peripheral blood stem cell transplantation for the treatment myocardial infarction can improve the heart function,and has obvious recent clinical curative effect in the same period of CABG.

BACKGROUND: Stent under-expansion and procedurally related abnormal lesion morphologies (e.g. dissection, thrombus) are associated with stent restenosis and acute, subacute and chronic thrombosis.OBJECTIVE: To explore whether larger post-procedural final minimum stent area can be acquired and more procedurally related complications can be identified in stent implantation guided by intravascular ultrasound.DESIGN, TIME AND SETTING: Retrospective analysis was performed at the Heart Center of Beijing Chaoyang Hospital, Capital Medical University between January 2004 and February 2005.PARTICIPANTS: Fifty patients with coronary artery disease with 52 lesions were enrolled in the study and underwent stenting guided by intravascular ultrasound. The patients were characterized as non-diffused lesion with vessel diameter ≥ 2.5 mm. Patients with severe left main lesion were excluded.METHODS: Qualitative and quantitative analyses were carried out in 50 patients with 52 lesions before and after stent implantation. The stent diameter and the end-point of therapy were determined by intravascular ultrasound standard.MAIN OUTCOME MEASURES: The differences of end point for stent implantation and the enlargement of lumen area gained by stent implantation were compared between cardioangiography and by intravascular ultrasound.RESULTS: The average stent diameter guided by intravascular ultrasound was larger than by cardioangiography (P=0.011); the peak balloon pressure was higher in intravascular ultrasound group than cardioangiography group (P < 0.001), and area stenosis percentage measured by quantitative coronary angiogram was smaller in intravascular ultrasound group than cardioangiography group (P=0.044). ②Cardioangiography showed success rate was 96.2% and intravascular ultrasound showed the success rate was only 37.7% after first balloon high-pressure dilation. Intravascular ultrasound subgroup analysis showed higher peak balloon pressure (P < 0.001), larger lumen diameter (P < 0.001), larger lumen area (P < 0.001), and smaller area stenosis percentage (P < 0.001). No obvious stenosis was found at the proximal and distal segments of the stent observed by cardioangiography, while atherosclerotic lesions at proximal segment were found in 39 cases (75.0%) and at distal segment were in 23 cases (44.2%) observed by intravascular ultrasound. The lumen area was larger in non-fatty plaque than in fatty plaque after stent implantation (P < 0.001). Compared with non-fatty plaque, the enlargement of vessel area was 1.30 mm2 smaller, while plaque compression was 0.48 mm2 larger. CONCLUSION: Stent implantation guided by intravascular ultrasound can acquire larger final lumen area and identify more procedurally related complications.

Objective To investigate the ultrasonic characteristics of angiographical normal left main (LM) branch of coronary artery observing with intravaseular ultrasound(IVUS). Methods Seventy-six patients whose coronary angiogram showed the lesions restricted only in left anterior descending (LAD) branch or left cireumflex(LCX) branch and no lesion was found in LM branch were enrolled and IVUS was performed. The plaque burden was measured and the quality of atherosclerosis was identified in lesion site of LAD or LCX by IVUS. Meanwhile,the absence or existence of lesions in LM was identified,and the quality of lesions was analyzed if it showing those existed lesions. The diameter and area of lumen in left main were measured and diameter and area of vessel were also measured. The plaque burden were measured for those who atheroselerosis existed in LM. Results IVUS showed 28 cases completely normal, 12 cases with intimal membrance hyperplesia,36 cases with plaque and 2 cases with intimal membrance flap in patients which LM was angiographically normal. Among those there were 30 eccentric plaques and 6 concentric plaques. For 36 patients whose lesions existed in LM observed by IVUS,there were 25 cases (69.4%) with soft plaque,4 eases (11.1%) with fibrous plaque,2 cases (5.6%) with calcific plaque,5 cases (13.9%)with mixed plaque. IVUS showed lumen diameter was (5.32±0.68)mm and lumen area was (23.34±5.27)mm2 for female patients; and lumen diameter was (5.90±0.50)mm and lumen area was (27.75±4.47)mm2 for male patients. The difference had significane when comparing lumen diameter and lumen area between male and female patients (P=0.042 and P=0.048, respectively). Vessel diameter was (5.90±0.47)mm and vessel area was (27.58±4.21)mm2 in patients with intimal membrance hyperplesia; lumen diameter was (4.39±0.54)mm and lumen area was (17.45±5.23)mm2,vessel diameter was (5.99±0.67)mm and vessel area was(26.61±6.27)mm2 n patients with atherosclerotic plaque.Diameter stenosis percentage was(26.17±7.87)%and plaque burden was(34.79±9.37)%in LM.Conclusions IVUS can find those lesions in LM which CAG cannot detect and identify the quality and severity of lesion precisely.

Objective To explore the safety and feasibility of guiding catheter passing through spasmodic vessels in patients undergoing percutaneous coronary intervention (PCI) via radial artery access by the aid of PCI guiding wire and balloon .Methods The clinical data of 33 coronary artery disease (CAD) patients undergoing PCI via radial artery access with radial artery or (and) brachial artery spasm ( group A ) were retrospectively analyzed .Among all these patients , guiding catheters were delivered through the spasmodic vessels successfully by the aid of PCI guiding wires and balloons .The clinical data of other 38 CAD patients having PCI during the same period performed by other operators via radial artery or ( and ) brachial artery approach and experienced vessel spasm were anlysed as the control ( group B ) .All patients in group B received conventional anti-spasm management during PCI .All vessel spasm was identified by angiography.For patients in group A , a diameter of 0.014 inch guiding wire was chosen to pass through the spasmodic vessel segment carefully and gently .The diameter of balloon should be chosen according to the diameter of guiding catheter .A balloon diameter of 2.0 mm and 2.5 mm was corresponded to 6F and 7F guiding catheter respectively .The balloon was advanced to the tip of guiding catheter , keeping a half in catheter and a half in vessel followed by inflating the balloon with a pressure of 8 atm.The balloon was kept inflated the guiding catheter was pushed in vitro carefully and slowly until the catheter passed through the spasmodic vessel segment .Then the balloon was deflated and pulled out together with PCI guiding wire . Exchanged a diameter of 0.035 inch wire and completed the positioning of guiding catheter .After finishing the PCI, radial or ( and) brachial angiography was performed again to observe if spasm disappeared and to determine if there any contrast medium exudation .For patients in group B , routine approach was applied including administration of nitroglycerine , diltiazem or nitroprusside etc . to relieve vessel spasm. Results The location of vessel spasm was similar in group A and group B ( P=0.150 ) , and the incidence rate of spasm in brachial artery was higher than that in radial artery in both groups .The chance of guiding catheter crossing the spasmodic vessel segment was significantly higher in group A than in group B ( 100%vs.39.5%, P=0.00).In patients whose guiding catheter could pass through the spasmodic vessel segment successfully , time spent in group A was shorter than in group B ( P=0.000 ) .The patient number which time spent was less than five minutes , five to 15 minutes and more than 15 minutes was 30 and 2 ( 90.1%vs.13.3%) , 3 and 7 ( 9.9% vs.46.7%) and 0 and 6 ( 0% vs.40.0%) in group A and in group B respectively.The incidence of forearm hematoma was lower in group A than in group B without statistical difference [6.1%(2/33) vs.18.4%(7/38), P =0.113].Conclusions It is safe and feasible for passing guiding catheter through spasmodic vessels during PCI via radial artery access by the aid of PCI guiding wire and balloon .

Objective: To explore the current clinical practice of implant-based breast reconstruction (IBBR) in China. Methods: The current survey was sponsored by Chinese Anti-Cancer Association, Committee of Breast Cancer Society and Chinese Society of Breast Surgeons. A survey was mailed to 110 hospitals in China, which have more than 200 breast cancer operations performed in 2017. The survey mainly included questions on the clinical practice of IBBR, sociodemographic and geographical factors associated with IBBR practice, reasons and concerns for selecting IBBR, type and timing of breast reconstruction, and the complications of IBBR. Data were analyzed using χ² test, Fisher′s exact test or Kruskal-Wallis rank sum test. Results: IBBR was available in 86.4% (95/110) included hospitals. It was predominantly performed breast reconstruction surgery, the proportion of IBBR in all the breast reconstruction was 65.75% (4 296/6 534). However, the rate of IBBR in all the patients received mastectomy was only 7.06% (4 296/60 877). Among all the included hospitals, the number of implant reconstructions performed in 2017 was 24 (57.5) cases (M(Q_R), range: 2-565 cases). Factors associated with the performance of IBBR including regional per capita gross domestic product (H=10.47, P=0.005) and annual surgery volume (H=8.30, P=0.016). The main reasons for choosing IBBR were relatively simple surgical procedure, short learning curve and short operation time. The effects of adjuvant radiotherapy on prosthesis, postoperative complications and patient satisfaction were the main concerns for implant reconstruction. Compared with delay reconstruction, a higher proportion of IBBR was observed in immediate reconstruction (83.1% vs. 62.0%, χ²=12.522, P=0.000). In all, 10.5% (10/95) hospitals reported more than 10% grade Ⅲ to Ⅳ capsular contracture. The incidence of infections need surgical intervention was reported between 10% and 20% by 4.2% (4/95) hospitals. Hospitals with 6% to 10% implant rupture and 6% to 15% implant removal were 1.1% (1/95) and 4.2% (4/95) respectively. Conclusions IBBR was the most common used surgery in breast reconstruction after mastectomy. However, the proportion of IBBR in patients after mastectomy was still low. Reginal economy, surgery volume of hospitals, lack of specialty training program and the concern about complications and patient′s satisfaction were the factors affecting the development of IBBR.

Objective: To investigate the current status of breast reconstruction surgery in China and analyze the specific views of Chinese doctors on the relationship between radiotherapy and breast reconstruction surgery. Methods: A total of 110 medical institutions nationwide with more than 200 cases of breast cancer surgery yearly were selected into this questionnaire survey. The questionnaire survey included basic information of the surgeons and their hospitals, information of breast cancer surgeries in 2017, types of reconstruction surgery and specific views on the relationship between radiotherapy and reconstruction surgery. Results: In total, 110 hospitals participated in the survey, 96(87.3%) had undergone breast reconstruction surgery. Reconstruction with implants accounted for 65.7% of the total reconstruction surgery and the proportion of autologous reconstruction was 20.1%. For patients who probably required postoperative radiotherapy, the preferred surgical procedure in the surveyed hospitals was implant based reconstruction surgery. For those who were confirmed to receive postoperative radiotherapy or had undergone radiotherapy after total mastectomy, autologous tissue reconstruction was recommended. Postoperative radiotherapy was a negative factor for immediate breast reconstruction, and most hospitals believed that radiotherapy exerted slight effect on surgery. The proportion of delay-immediate breast reconstruction reached 66% and 86% of hospitals preferred to replace with the prosthesis at 6 months after radiotherapy. Patients with local recurrence after breast-conserving surgery could also receive immediate reconstruction and implant reconstruction was the preferred surgical procedure. Conclusions The proportion of breast reconstruction in China is relatively low and Chinese doctors still lack of technical mastery. In the face of conflict with radiotherapy, the regime selected by Chinese doctors is not in accordance with those recommended by the guideline and consensus, prompting that more professional training should be delivered for Chinese doctors to further promote the development of breast reconstruction in China.