Abstract： Objective?To evaluate clinical experiences and long-term outcome of morphologic left ventricle （mLV） retraining for congenitally corrected transposition of the great arteries （cCTGA）. Methods From May 2005 to May 2011, 24 patients with cCTGA anomaly underwent left ventricle retraining by means of pulmonary artery banding in Fu Wai Hospital. There were 13 males and 11 females with their age of 0.17-22.00 （3.73±4.35） years and body weight of 5.10-61.00（15.71±10.95）kg. Major concomitant malformations included tricuspid valve insufficiency （TR）in 23 patients （mild in 11 patients, moderate in 7 patients, severe in 5 patients）, restrictive ventricular septal defect in 18 patients, atrial septal defect in 5 patients, patent foramen ovale in 5 patients, patent ductus arteriosus in 4 patients, mild pulmonary stenosis in 5 patients, and aortic coarctation in 1 patient. All the patients were preoperatively diagnosed by echocardiography, cardiovascular angiography or cardiac catheterization. The mLV end diastolic diameter （mLVEDD） was 8-32（21.56±6.60）mm, posterior wall thickness of mLV was 2-7 （4.29±1.52）mm , mLV to morphologic right ventricle （mRV） pressure ratio （mLV/mRV） was 0.12-0.65 （0.41±0.12）. Pulmonary artery banding operation was performed through upper partial sternotomy or median sternotomy without circulatory arrest. Results The mLV/mRV pressure ratio reached to 0.57-0.93 （0.76±0.10） under direct pressure monitoring after surgery. There was no in-hospital death in this group. Echocardiography before discharge showed that the structure and function of the two ventricles were good, the interventricular septum moved partially towards mRV, mLVEDD was increased slightly, and there was a tendency of reduced TR. Postoperative follows-up was from 1 to 35 months, and there was no late death during follow-up. All the patients were in good general condition with stable vital signs and New York Heart Association （NYHA） classⅠ-Ⅱ. The mLVEDD was 14-40 （26.17±7.11） mm, posterior wall thickness of mLV was 4-9 （4.95±1.44）mm, mLV/mRV pressure ratio was 0.52-0.98 （0.72±0.16） , and TR was significantly decreased. Fourteen patients successfully underwent staged complete double-switch procedure. Conclusion Left ventricle retraining is a safe and effective method to train mLV for cCTGA patients. Pressure load and posterior wall thickness of mLV are increased, mLV cavity is dilated, and TR is significantly reduced after the surgery.
Objective To investigate the effects of repeated shortischemia training on flap survival area, vascular endothelial growth factor and the microvascularsel density. Methods Seventy-two rabbits were divided into:the experimental group(n=64), the skin flaps were constructed in two sides of back, one side flap were given ischemia training for 15 minutes and 8 times one day at the pedicles from the 1st to 8th day after operation (group A), the other side flap was served as a control (group B), the corresponding site was only marked as a blank control group (group C).Then, 8 pedicles of group A and group Bwere isolated every day. The surviving area of all skin flaps were calculated on the5th day after isolating operation. The vascular endothelial growth factor(VEGF)and microvessel density(MVD) of the 3 groups were checked with immunohistologochemical staining. Results After the operation, all animalswere survival with normal vitality.The survival flap area of group A were significant more than that of group B after 3 days(Plt;0.05).The expressions of VEGF and MVD of group A and group B were higher than group C. The expression of VEGF of group A was significantly higher than that of group B(Plt;0.01). The counting of MVD of group A was also significantly higher than that of group B(Plt;0.05). There was positive correlation between flap survival area and MVD in group A. The relation of time point was n and n 2 respectively,correlation coefficient was 0.850. As well as MVD and VEGF were positive correlation,correlation coefficient was 0.801. Conclusion Early repeated shortischemia training can increase flap survival area, the mechanism maybe involve the increased expression of VEGF, which can increased skin flap microvascular density.
Objective Through investigating and analyzing the training status quo of rural doctors in Liangshan Yi Autonomous Prefecture of Sichuan province, to find out problems existing in the training. Methods In October 2010, the on-site questionnaires were distributed to 300 rural doctors from 13 counties who were studying at medical schools of Liangshan Prefecture. The data of their training status were recorded with Epidata 3.0 software and then analyzed with SPSS 16.0 software. Results Among the total 300 questionnaires distributed, 279 were valid with the response rate of 93%. The results showed that: rural doctors in Liangshan Prefecture were generally low in education background and short of knowledge and skills, and took over the burden of the training tuition; and the training content was not fully correlated with theirs actual demands. Conclusion This paper suggests, the in-service training should be conducted on the following bases: the actual situation of Liangshan Prefecture, the adequate consideration of characters of minority region, the improvement of training quality, and the formulation of supporting policies and implementing methods.
Objects The center of Evidence Based Medicine (EBM) in China has organized several extra-curricular trainings in summer vacations for medical students, so as to enable them get involved in the practice of Evidence Based Medicine, we were wondering whether these training courses served as an effective supplement to EBM education in class and what it exactly brought to us, with a primary concern about research capability in field of EBM. Methods We conducted questionnaire survey with undergraduate students whose enrolling years range from 2001 to 2005 in West China Medical School of Sichuan University, and divided them into a stratification of five groups according to enrolling years. Then we paired the trained students with untrained ones at a ratio of 1׃2. The final number of included students was 216, of which 72 had been trained while other 144 had not. Epidata 3.0, Excel and SPSS 13.0 were used for data collecting and analyzing, respectively. Chi-square test was adopted for result interpretation. Results Compared to those without training experience, trained students were prone to choose medical specialized databases (Plt;0.05) when they search for some academic publications. In terms of selecting and quality evaluation, the trained were more dependent on systematic reviews (Plt;0.05). Meanwhile, they also showed critical thinking more than that of untrained (Plt;0.05). In addition, the fruit of published theses was in favor of those trained ones. Conclusions Those who have taken part in extra-curricular training of EBM surpass those untrained in ability of scientific research. To some extent, we are still in shortage of educational resources; this extra-curricular training course can play a complementary role for EBM education, as effective and necessary.
Objectives To investigate the personnel allocation and workloads of the medical residents across the subspecialties of the Department of Internal Medicine at a tertiary hospital. Methods A cross-sectional survey was performed to investigate personnel allocation and workload. The resulting data were compared with the ministerial standard that regulates the training of medical residents. Results Aside from the subspecialty of Rheumatology, medical residents accounted for 40% to 70% of the total staff physicians. The faculty physicians accounted for only 20% to 50% of the total. When the non-faculty residents were not taken into account, each individual faculty physician took charge of between 5.3 to 15.5 beds across all the subspecialties. When only the non-faculty residents were accounted for, each individual resident took charge of 1.7 to 9.4 beds, 1.3 to 5.7 bed-days per day, and 5.8 to 17.3 patients per month. When both were accounted for, each physician was responsible for 1.3 to 5.9 beds, 1 to 3.6 bed-days per day, and 4.2 to 10.7 patients per month. In comparison with the ministerial standards, medical residents have managed more patients per month in the subspecialties of Nephrology, Respiratory Diseases, Digestive Diseases, Neurology and Infection.Fewer patients were managed in the subspecialty of Endocrinology. Conclusion The medical resident allocation is balanced across the subspecialties of the Department of Internal Medicine, although it is less stable. The total number of physicians is smaller than required, and physicians generally bear an overload of work. The number of patients managed by each individual resident is more than the requirement set by the ministerial standards, and has significant variations across subspecialties. Medical residents need to be allocated in accordance with the corresponding workloads.
We summarize the primary structure, objective and achievements of the resident standard training program in West China Hospital of Sichuan University during the past decade. We also give some advices on how to develop and accomplish future goals of resident standard training.
Objective To understand the demands of residents in postgraduate medical education for faculty doctors and provide useful information to teaching hospitals. Methods Two hundred residents were interviewed through questionnaires. Results Demands for faulty doctors were consistent in the following 5 fields: faculty’s synthetic diathesis, adaptability to social and medical changes, information management and research, cooperation and teamwork, and innovation and continuous self-improvement (Pgt;0.05). However, with regard to the faculty doctors’ professionalism, teaching models and atmosphere, the demands of residents in the different stages of postgraduate medical education differed significantly (Plt;0.05). Conclusion Teaching hospitals continuously improve faculty doctors’ abilities and pay much attention to residents’ role transformation.
Objective To provide scientific evidence for the establishment of medical specialist system in China by analyzing the current situation and problems, putting forward solution thoughts and countermeasures, from the angle of medical education system, residency training program and licensed physician management. Method Principle and method of evidence-based medicine were adopted. Retrospective investigation was conducted to gain information from 1996 to 2002 about enrollment and running form of medical education, current situation of residency and specialist training. Data was then extracted and analyzed for the benefit of corresponding countermeasures. Results By the end of 2001, there were totally 1 640 thousand physicians in China. The enrollment proportion of undergraduate and junior college student steadily increased from 1996 to 2002, while the situation quite the reverse as for medical secondary school. More than 300 thousand have taken part in the licensure exam, among whom less than 15% had university diploma. About 52 000 doctors have already completed the residency training program, and 65 700 are being trained. Standardized system of specialist training and admittance is not available in China. Conclusions It was three main tough problems that mainly account for the poor quality of doctor as a whole in China, which include diversity of educational system, insufficient software and hardware of residency training program, and absence of specialist training system. An allied funded program of "research on medical specialist training and admittance" has been on the way, and research outcomes will be published soon.
Objective To provide scientific evidence for the establishment of medical specialist system in China by investigating the history, current situation, problems and countermeasures of medical specialties training at home and aboard. Method The principle and theroy of evidence-based medicine were adopted. The information before Dec. 31, 2003 of Pubmed, CBM, official website, some journals, most frequently used search engines and medical monograph were systematically reviewed. Included literatures were assessed and graded according to the pre-defined criterias. Results A total of 1 319 studies (1 298 in English, 21 in Chinese) were included, among which only 6 were related to the classification of medical specialties. Based on the information from official website of USA, Canada, UK, Singapore, Australia and China (including HK and Taiwan), it showed that China has the largest number of medical specialties, followed by that of USA. In China, the number of medical specialties has more than that of the disciplines in clinical field, which was followed by resident training programs. Some specialties were duplicate, or not international standardized. Conclusions The classification of medical specialties should be developed consecutively, which comprehensively considered the international trend, characteristics of doctor training and the current situation. Specialties whose training program are well-established and developed should initiate firstly. Others will be put into practice gradually after being fully exprienced.