Combing and analyzing classification methods of ancient TCM literature / 国际中医中药杂志

In order to scientifically classify ancient TCM literature and promote the development and use of the literature, this paper combs the classification methods used in the bibliography literature, the modern databases and the libraries of TCM, analyzes the features of the classification methods, summarizes the existing problems in the classify of ancient TCM literature, and proposes the solutions.

Clinical research of aortic valve replacement in small aortic annulus / 中华外科杂志

<p><b>OBJECTIVE</b>To compare the effect aortic valve replacement(AVR) combined with aortic root enlargement and simple St.Jude Regent AVR in small aortic annulus patients.</p><p><b>METHODS</b>From June 2008 to June 2012, 62 severe aortic valvular stenosis patients with small aortic annulus (annulus diameter of 15-21 mm) entered the study. Twenty-seven cases received AVR combined with aortic root enlargement (enlargement group) and 35 cases received simple St.Jude Regent AVR(non-enlargement group), 17 mm St.Jude Regent in 15 cases(17 mm group) and 19 mm in 20 cases (19 mm group). Aortic root enlargement techniques included Nicks in 2, modified Nicks in 6 cases, modified Manouguian in 19 cases. Patients were followed up and received ultrasonic cardiogram (UCG) 3, 12 months postoperatively and t-test was used for statistical comparison.</p><p><b>RESULTS</b>In enlargement group, 1 Nicks patient received reoperation due to aortic root hemorrhage, and died of mediastinal infection, 1 Manouguian patient received permanent pacemaker. In non-enlargement group, low cardiac output syndrome in 1 case. Three months and 12 months postoperative UCG showed, comparing to preoperation, effective orifice area (EOAI) increased significantly, postoperative transvalular pressure gradient and flow rate decreased significantly in each group (P = 0.000). Left ventricular diastolic diameter (LVDd) decreased significantly in both enlargement group and 19 mm group(P = 0.000), but no significant change in 17 mm group (P > 0.05). In non-enlargement group, 19 mm compared to 17 mm group, 3 months and 12 months postoperative EOAI increased significantly, pressure gradient, flow rate and LVDd decreased significantly(t = 2.449-12.291, P = 0.000-0.029). Comparing to enlargement group, there were significant differences in EOAI, pressure gradient, flow rate and LVDd in 17 mm group (t = 2.278-17.860, P = 0.000-0.028), but no significant differences in 19 mm group(t = 0.118-1.630, P = 0.110-0.907).</p><p><b>CONCLUSIONS</b>For small aortic annulus AVR patient, 19 mm and larger St.Jude Regent prosthetic valves may produce satisfied hemodynamic, otherwise, aortic root enlargement is recommended.</p>

Developing a Database of Ancient Books on Health Preservation / 国际中医中药杂志

Objective To preserve traditional Chinese Medical (TCM)classical and also to facilitate its reading.Methods A database consisted of 10 datasets was designed on ORACLE 9i.TCM classical on health preservation and in good edition were selected from collections of the Library of China Academy of Chinese Medical Sciences for scanning,indexing,and abstracting.An online browser Was also developed for the database.Results An online database including 110 TCM classical on health preservation information Was constructed.More than 50% of books covered in the database are rare ones.Bibliographic information and keyworda Can be searched in different ways,and pictures of full text can be browsed.Conclusion Digitalization is a good way for ancient book preservation and utilization.Further effort for knowledge discovery from TCM classical should be done.

Left atrial dimension and atrial fibrillation in surgical heart disease patients / 老年心脏病学杂志（英文版）

Objective The effect of left atrial (LA) dimension on the occurrence of atrial fibrillation (AF) has been examined in some small studies.Less is known about the relationship of LA dimension,hemodynamic with AF during echocardiographic evaluation,especially,the flow dynamics in LA poorly described.The objective of this study was to investigate the relationship between LA dimension and the occurrence of AE Methods Two hundred and forty-five consecutive patients with heart disease scheduled to undergo open heart surgery were prospectively enrolled in the study.Patients were divided into 2 groups according to atrial fibrillation:AF group (n=148,99 men and 49 women,with a mean age 59.3+8.4 years),and no-AF group (n= 97,60 men and 37 womem).Echocardiography was performed before surgery.All measurements were performed following the American Society of Echocardiography recommendations.Results There were more patients with congestive heart failure in AF group than in no-AF group (45.9% vs 39.1%,P ＜0.05).The mean LA volume was 49.2±12.2 ml/m2 in AF group and 33.1±10.8 ml/m2 in no-AF group.There were also significant differences between two groups in left atrial end systolic dimension (LAESD) (50±13mm vs 27±14mm),left atrial end diastolic dimension (LAEDD) (79±17mm vs 53±13mm),PA pressure ( 41.3+11.6 mmHg vs 37.5±10.4 mmHg),and ratio of mitral E velocity and septal mitral annulus motion velocity (E/E') .The percentage of abnormal diastolic function grades (DGF) was also higher in AF than in no-AF group (89.9% versus 59.8% );.Conclusion Atrial fibrillation is associated more frequently with an increased LA dimension and more severe atrial hemodynamics disorder.(J Geriatr Cardiol 2008;5:11-4)

Methods for determining aperture of porous materials / 中国组织工程研究

The aperture and its distribution have remarkable influence on permeation behavior,infiltration rate and filtration character of porous bodies.In this paper,the methods in common use for determining the aperture and its distribution of porous materials are introduced,including the direct observation from cross-section,the gas-bubble method,the permeation method,the mercury method,the gas-adsorption method,the liquid-liquid method,the suspension-filtration method,the X-ray small-angle scattering method,etc.And several measuring methods are compared with one another.Considering the complexity of apertures and various influence factors in the determining of aperture,it is important to determine the proper method according to the structure characteristic of the material,moreover,the test error must be considered.