Since the advent of coronary artery bypass grafting (CABG), it has been one of the main ways to treat coronary heart disease. However, compared with percutaneous coronary intervention (PCI), it causes more trauma, complications and pain which discourage many patients. Recently, minimally invasive CABG has gradually become one of the main choices in some medical centers with the progress of technology and the development of surgical instruments. Compared with traditional CABG, minimally invasive CABG has the advantages of less trauma, less pain, faster recovery, lower perioperative mortality and less demand for blood transfusion. In this paper, we will mainly focus on the current stage and prospect of minimally invasive CABG.
ObjectiveTo investigate the safety, feasibility, and efficacy of full repair strategy under small incision in the treatment of closed Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture.MethodsThe clinical data of 57 patients with closed Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture treated by full repair strategy (fracture, ligament, and cartilage repair) under small incision between January 2012 and January 2017 were retrospectively analyzed. There were 31 males and 26 females, with an average age of 41.1 years (range, 21-65 years). The causes of injury included traffic accident injury in 33 cases and falling injury in 24 cases. All of them were closed fractures, including 20 cases of medial malleolus fracture, 37 cases of complete medial malleolus but deep and shallow rupture of deltoid ligament. The average time from injury to admission was 9.6 hours (range, 3-34 hours). The quality of reduction of distal tibial articular surface (based on Ketz-Sanders standard), the reduction of tibiofibular syndesmosis (the anterior and posterior distances of distal tibiofibular syndesmosis and the lateral ankle twist angle measured by CT scan at 10 mm above the ankle joint line), and the fracture healing were evaluated. The medial clear space (MCS), tibiofibular clear space (TFCS), and distal fibular tip to lateral process of talus (DFTL) were measured on the X-ray films of ankle points. Before and after operation, the pain and functional improvement of ankle joint were evaluated by visual analogue scale (VAS) score and American Orthopedic Foot and Ankle Association (AOFAS) score, and the activities of ankle dorsiflexion and plantar flexion were measured.ResultsThree cases with osteochondral lesions of the talus were found during operation and all were treated with microfracture techniques. Tournament paralysis occurred in 2 cases after anesthesia. The surgical incisions healed by first intention in all patients. All the 57 patients were followed up 24-84 months, with an average of 38.6 months. All patients achieved bone healing without bone nonunion and malunion at 12 months after operation. The reduction quality of distal tibial articular surface was excellent in 56 cases and good in 1 case at 3 months after operation, the excellent and good rate was 100%. There was no significant difference in the MCS, TFCS, DFTL, anterior distance of distal tibiofibular syndesmosis, posterior distance of distal tibiofibular syndesmosis, and lateral ankle twist angle between the affected and healthy sides at 12 months after operation (P>0.05). At last follow-up, the VAS score, AOFAS score, ankle dorsiflexion and plantar flexion activities of the affected side were significantly improved when compared with preoperative ones (P<0.05). Compared with the healthy side, there was no significant difference in ankle dorsiflexion and plantar flexion activities (P>0.05).ConclusionFull-repair strategy under small incisions for the treatment of Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture is effective and safe. It can not only reduce wound complications, but also improve the quality of joint reduction of the ankle joint and distal tibiofibular syndesmosis. Full repair of ligaments and cartilage can improve the internal fixation strength and joint stability of the ankle joint.
Legionella, one of the causative pathogens of atypical pneumonia, firstly outbroked during the period of American Legion’s convention in 1976, Philadelphia. Legionella infection can accompany multisystem involvement. In addition to pulmonary lesions, it also accompanies extrapulmonary manifestations, including gastrointestinal symptoms (primarily diarrhea and hepatic dysfunction), neurological symptoms (primarily headache, disorientation and confusion of consciousness), urinary symptoms (primarily hematuria, proteinuria and acute kidney injury), rhabdomyolysis, as well as electrolyte disorder mainly characterized by hyponatremia and hypophosphatemia. This article reviews the extrapulmonary manifestations and its regulatory mechanism of Legionella infection.
Objective To verify the predictive value of Sino System for Coronary Operative Risk Evaluation（SinoSCORE） on quality of life in patients undergoing coronary artery bypass graft （CABG） surgery. Method A total of 234 patients in Peking University People’s Hospital undergoing CABG between November 2008 and September 2010 hadcompleted the preoperative and 6-month postoperative Short Form-36 （SF-36）. There were 172 （73.5%） male patients and63 （26.5%） female patients. The average age was 63.0±10.1 years. According to the SinoSCORE， 234 patients were dividedinto three groups：low risk （SinoSCORE score less than 1 point，n=67）， medium risk （SinoSCORE score 2-5 points，n=77） and high risk （SinoSCORE score more than 6 points，n=90） group. Clinical information of the 234 patients was collected， andthe score values of all patients were calculated according to the SinoSCORE model. Statistic methods were performed toevaluate the relationship between quality of life and SinoSCORE. Results The postoperative quality of life have improvedsignificantly， but the improvement of quality of life have no significantly different between groups. There was statisticallysignificant correlation between quality of life and SinoSCORE （P＜0.05， r value at-0.150 to 0.255）.Linear regression analysis showed that SinoSCORE was significantly collected with quality of life in multiple subgroups （P＜0.05， r 2＜0.1） .Conclusion SinoSCORE have statistically correlated with quality of life， and have certain but limited predictive value on quality of life in CABG patients.
Abstract： Objective?To summarize our experience of redo coronary artery bypass grafting（CABG） and explore appropriate redo CABG strategy for Chinese patients. Methods We retrospectively analyzed clinical data of 27 patients who underwent redo CABG in People’s Hospital of Peking University from January 2000 to January 2010. There were 15 male patients and 12 female patients with their age of 41-84 （63±8） years. The mean time between the first CABG and the redo CABG was 45 （4-168） months. Preoperatively all the patients had unstable angina pectoris. Twenty-one patients were in New York Heart Association （NYHA） functional classⅠ-Ⅱ， and 6 patients were in NYHA functional classⅢ-Ⅳ. Preoperatively， their left ventricular end-diastolic dimension （LVEDD） was 41-69 （51.0±0.7） mm， and their left ventricular ejection fraction （LVEF） was 32%-78% （58%±12%）. At the time of redo CABG for the 27 patients， there were 6 new coronary artery lesions， 7 left internal mammary artery （LIMA） lesions， 3 radial artery lesions （including 1 proximal anastomosis lesion alone） and 49 saphenous vein graft （SVG） lesions （including 3 proximal lesions alone and 3 distal lesions alone）.?Results?The surgical approach of redo CABG included median sternotomy in 18 patients， left lateral thoracotomy in 8 patients， upper midline abdomen and subxiphoid incision in 1 patient. Off-pump coronary artery bypass grafting （OPCAB） surgery was performed in 25 patients， but intra-operatively 2 patients underwent conversion to CABG under cardiopulmonary bypass. A total of 65 distal anastomoses and 41 proximal anastomoses were performed during redo CABG. A total of 10 LIMA， 3 right internal mammary artery (RIMA)， 16 left radial artery， 2 right radial artery and 17 SVG were used in redo CABG . There were 1-4 （2.4±0.8） distal anastomoses for each patients. The operation time was 170-530 （304±86）min. Postoperative transfusion was 0-10 （4.3±3.5） U packed red blood cells and 0-1 600 (685±549) ml fresh frozen plasma for each patient. Postoperative mechanical ventilation time was 6-156 （24±32） h and postoperative hospital stay was 7-35 （14±6） d . There was no in-hospital death. All the patients were discharged without any angina symptoms. A total of 26 patients were followed up and 1 patient was lost with the mean follow-up time of 80 （13-133） months. During follow-up， 16 patients were alive without angina symptoms， 4 patients died， and 6 patients had recurrent angina symptoms or heart failure. Conclusions OPCAB is an effective surgical strategy of redo CABG， but cardiopulmonary bypass should also be prepared. Arterial graft should be use as long as possible in redo CABG and the surgical strategy should be individualized.
Objective To construct adenovirus expressing NGF (Ad-NGF) and to investigate its promotive effect on the reparation and regeneration of sciatic nerve injury in rats. Methods NGF gene sequence was cloned into shuttle plasmid pCA13 of adenovirus type 5. After packed in HEK-293 cells, the recombinant adenoviruses-Ad-NGF underwent sequence identification. Thirty-two male SD rats weighing 180-200 g were randomly divided into 4 groups (n=8 rats per group). Sciatic nerve injury model was establ ished by disconnecting and direct suturing the right sciatic nerve in the rat. Theright gastrocnemius muscle of group A and C received Ad-NGF injection and adenovirus vector without NGF gene sequence injection, respectively, and 1 × 108 PFU/per time was given every other day for three times. Group B and D received NGF injection (200 U/d) and normal sal ine (100 ?L/d), respectively, for 3 weeks. The effect of various treatments on injured sciatic nerve was evaluated by performing sciatic nerve function index and nerve electrophysiology detections 31 days after operation. Meanwhile, the sciatic nerve in the anastomosis and at the site 1 cm distal to the anastomosis were obtained, and underwent RTPCR and Western blot analysis for detecting NGF mRNA and protein expression level in the injured sciatic nerve in the rats. Histology, immunohistochemistry, and transmission electron microscope observations were conducted. Results Ad-NGF carrying NGF gene sequence was constructed successfully and confirmed by sequence analysis. The sciatic nerve function index, nerve conduction velocity, evoked potential ampl itude, and latent period of group A was better than those of other groups (P lt; 0.05), and there were no significant differences among group B, C, and D (P gt; 0.05). RT-PCR and Western blot detection: the expression levels of NGF mRNA and protein in group A were greater than those of group B, C, and D (P lt; 0.05), and no significant differences were noted among group B, C, and D (P gt; 0.05). Histology and immunohistochemistry observation showed that the regeneration of the sciatic nerve in group A was obvious superior to that of other groups. Transmission electron microscopy observation suggested there was significant difference between group A and groups B, C, and D in terms of axonal diameter of sciatic nerve cross-section, myel in sheath thickness and nerve fiber number (P lt; 0.05), and there were no significant differences among group B, C, and D (P gt; 0.05). Conclusion Ad-NGF can effectively promote the repair of sciatic nerveinjury in rats, and is a new method for obtaining large amounts of NGF in the area of injured peripheral nerve.
This paper introduces the background, significance, definition and types of clinical audit and describes five stages of clinical audit, including preparing for clinical audit, selecting criteria, measuring performance and sustaining improvement. This paper also introduces the international and national status quo of implementing clinical audit in nursing practice and describes the reporting guideline for articles of clinical audit. Finally, this article suggests that providing methodological training and creating a supportive environment are crucial strategies to promote the implementation of clinical audit and bridge the gaps between evidence and practice.
Valvular heart disease is a structural or functional disease of the heart due to rheumatic fever, congenital malformation, infection, or trauma, resulting in abnormal cardiac hemodynamics and ultimately heart failure. Implantation of artificial heart valves has become the main way to treat heart valvular disease. Because the structure of the artificial heart valve plays a key role in the stress distribution and hemodynamic performance of the valve and stent, the geometric configuration of the artificial heart valve is constantly updated and improved during its development from mechanical valve to biological valve, which closely mimics the geometric characteristics of the normal natural heart valve. This article sums up the design process of geometric configuration of artificial heart valves and the influence of geometric configuration on the central disc stress and durability of artificial heart valves, analyzes the important parameters of geometric modeling for artificial heart valves, and discusses the development of the corresponding modeling method, to provide reference and new ideas for the biomimetic optimization design of artificial valves.
【摘要】 目的 考察用乌头碱水解物、新乌头碱水解物、次乌头碱水解物的含量作为附片水煎剂及附片质量控制指标的可行性。 方法 采用高效液相色谱分析法，色谱柱为Shimpack CLC-ODS，以甲醇-乙酸铵溶液（0.2 mol/L）（200︰210）为流动相，流速1.0 mL/min，检测波长为241 nm，对乌头碱新，乌头碱、次乌头碱水解物的含量测定进行研究。 结果 3种水解物检测方法测得水解物在进样范围有良好线性关系，重现性好，稳定性好，生药提取时间宜选定为40 min，不同批号的附片中3种水解物含量差别较大。 结论 此方法简便，使用新乌头碱、乌头碱、次乌头碱的水解物作为含附片制剂的质量控制指标是可行的。【Abstract】 Objective To examine the feasibility of regarding the hydrolyzate from aconitine, new aconitine, and hypaconitine to be the decoction of radix aconite and the quality control index. Methods High performance liquid chromatographic method (HPLC) method was adopted. Shimpack CLC-ODS column with UV detection at 241 nm was used. The mobile phase consisted of (200∶210), and the flow rate was 1.0 mL/min. Results The content of the hydrolysis objects in the water decoction and toxicity were correlated with each other, and the contents of hydrolysis were significantly different among different groups of radix aconiti. Conclusion This method is simple, accurate and effective for content research of hydrolyzate from aconitine-type alkaloids in Monkshoo decoction of Radix Aconiti, and it is feasible to take it as the quality control index.
【摘要】 目的 通过检测临床确诊为慢性乙型肝炎患者血清谷丙转氨酶（ALT）、谷草转氨酶（AST）、甲状腺激素T3、T4及促甲状腺素（TSH）含量，进一步探讨慢性乙型肝炎患者肝损情况与甲状腺分泌功能的关系。 方法 收集2009年1-4月79例确诊为慢性乙型肝炎患者（病例组）血清标本，分别检测其ALT、AST、甲状腺激素T3、T4及TSH含量。以同期健康体检者30例作为对照组。比较两组的差异及各指标间的相关性。 结果 病例组AST为（87±113） U/L、ALT为（135±241） U/L、AST/ALT为0.97±0.57、TSH为（1.63±1.29） mU/L、T3为（1.61±0.52）ng/mL、T4为（10.7±2.9） μg/dL，对照组分别为（23±5） U/L、 （18±5） U/L、1.31±0.26、（2.13±0.90） mU/L、（1.19±0.16） ng/mL和（8.6±0.9） μg/dL，两组各指标比较均有统计学差异（Plt;0.01）。所有指标均正常的共有6例（7.6%），有73例（92.4%）存在不同程度的指标异常；在68例AST/ALT比值降低的慢性乙型肝炎患者（93.2%）中，伴有单纯T4升高的有11例（16.2%），单纯T3升高的有4例（5.9%），T3、T4同时升高的有11例（16.2%），T3、T4同时升高且TSH降低的有2例（2.9%），1例T4升高且TSH降低（1.5%），1例仅TSH升高（1.5%）；在4例AST/ALT比值正常的慢性乙型肝炎患者（5.5%）中，有1例T3、T4同时升高且TSH降低，1例T3和T4同时升高，1例单纯T4升高，1例单纯TSH降低；有1例仅AST/ALT比值升高而其他项正常。 结论 慢性乙型肝炎患者除AST/ALT比值异常外，还同时伴有不同程度的甲状腺激素指标异常，其原因可能与慢性乙型肝炎应用干扰素治疗时甲状腺功能受损有关。【Abstract】 Objective To explore the relationship between liver damage and the secretion function of thyroid by detecting the serum alanine aminotransferase (ALT), aspartate aminotransferase(AST), T3, T4, and thyroid stimulating hormone (TSH) in patients with chronic hepatitis B. Methods The serum samples of 79 patients with chronic hepatitis B from January to April 2009 were collected, and the ALT, AST, T3, T4, and TSH concentrations were detected. Another 30 healthy subjects were selected as the control. The detected indexes were compared between the two groups. Results In the case group, the concentration of AST was (87±113)U/L, ALT was (135±241)U/L,AST/ALT was 0.97±0.57, TSH was (1.63±1.29) mU/L, T3 was (1.61±0.52) ng/mL, and T4 was (10.7±2.9) μg/dL; while in the control group, the concentrations of the items were (23±5) U/L, (18±5)U/L, 1.31±0.26, (2.13±0.90) mU/L, (1.19±0.16) ng/mL, and (8.6±0.9) μg/d L, respectively. The differences between the two groups were significant (Plt;0.01). Among the 79 case, 6 (7.6%) had a totally normal result, and 73(92.4%) had an abnormal result. There were 68 patients who had a low ratio of AST/ALT, among whom 11 (16.2%) had a simple T4 elevation, 4(5.9%) had a simple T3 elevation,11(16.2%) had an elevation of both T3 and T4, 2 (2.9%) had an elevation of both T3 and T4 and a depression of TSH, 1(1.5%) had an elevation of T4 and a depression of TSH, and 1 (1.5%) had a simple TSH elevation. There were 4 cases who had a normal ratio of AST/ALT, among whom 1 had an elevation of both T3 and T4 and a depression of TSH, 1 had an elevation of both T3 and T4, 1 had a simple T4 elevation, and 1 had a simple TSH depression. There was 1 case who had only an elevation of AST/ALT. Conclusion Most of the patients with chronic hepatitis B have an abnormal result of thyroid hormone together with the abnormal ratio of AST and ALT. The reason mainly lies in the damage of thyroid function by the usage of interferon for the therapy of chronic hepatitis B.