Acute abdomen means a set of clinical emergency with acute abdominalgia as the primary characteristic symptom of onset,including others as the acute onset,quick symptom changes,severe illness,and oftenly need surgical treatment;therefore,acute abdomen ought to be designated within surgery domain.As interventional therapy is extensively applied in clinical medicine,now a days many victims of acute abdomen,especially those with ambiguous clinical diagnosis requiring an initial invasive examination(angiography,PTC,etc),should be referred to interventional therapy before taking an item of invasive measures.This new concept management has achieved good clinical curative effect and become one of the remarkable achievements in acute abdomen therapeutics.Such predominance finds proper expression in the following two aspects:(1)The evolution of contemporary medical iconography has made it possible to duely and accurately diagnose acute abdomen,and thus created a diagnostic predominance for us-interventionalists;(2)Intervention therapy is featured with its unigue minimal invasion and massive effectiveness,and thus provides high leading edge than conventional surgical operation.We believe that intervention management ought to become the first-choice for treating the above mentioned acute abdomen.(J Intervent Radiol,2006,15:193-194)

The development history, the features and laws of guaranteeing medical supplies under emergency situation are introduced briefly. The allocation of resources, the key factors in management and the technique supply are described. By looking at the trend and the future work on how to guarantee medical supplies in the state of emergency, some conclusions can be made: guaranteeing medieal supplies in the state of emergency is a whole new field. Only when the experience is accumulated, and when the eoneepts and techniques from foreign countries are learned, the supplies for clinical and first aid to be delivered safely and in time can be guaranteed. Thus, the number of lives saved will be maximized.

Four methods for evaluating the academic impact of scholars were described according to their literature information, including subjective evaluation method, bibliometric method, social network analysis and comprehen-sive evaluation method .Their development trend was studied by analyzing their characteristics and applications .

Objective To investigate the clinical effect of minimally invasive plate fixation in the treatment of calcaneal fractures.Methods 68 patients with calcaneal fractures were selected as the research subjects,they were randomly divided into the control group and observation group,34 cases in each group.The control group received open reduction and plate internal fixation,while the observation group was treated with minimally invasive plate fixa-tion.The clinical results and complications of the two groups were observed.Results The excellent and good rate was 94.1 2% in the observation group,which was significantly higher than 79.41 % in the control group,the difference was statistically significant(χ2 =9.397 6,P <0.05 ).The Bohler angle and Gissane angles in the control group were (28.67 ±2.04)°,(1 21 .87 ±8.23 )°after treatment,which were significantly higher than (6.45 ±1 .21 )°, (1 01 .65 ±8.56)°before treatment.After treatment,the Bohler angle and Gissane angles of the observation group were (32.56 ±3.25 )°,(1 29.45 ±1 2.86)°,which were significantly higher than (6.36 ±1 .26)°,(1 01 .54 ± 8.27)°of the control group,the differences were statistically significant(P <0.05),and the increase of Bohler angle and Gissane angle of the observation group was more obvious than the control group.The incidence rate of complica-tion in the observation group was 2.94%,which was lower than 8.82% in the control group,the difference was statis-tically significant(χ2 =3.923 7,P =0.047 7).Conclusion Minimally invasive plate fixation in the treatment of cal-caneal fractures has significantly smaller incision,and can reduce the incidence of complications,it is worthy of clini-cal application.

Objective To investigate the feature of CT perfusion of the lower limb skeletal muscle in patients with diabetic peripheral arterial disease (PAD).Methods It was a prospective study that collected out-patients and in-patients of interventional vascular surgery from January 2008 to January 2013.The patients were divided into three groups,including 27 patients (54 limbs) in diabetic PAD group,27 patients (54 limbs) in common PAD group and 9 patients (18 limbs) in control group.Patients in diabetic PAD group were selected when PAD were diagnosed through CTA and patient had the exact history of diabetes.There were 54 limbs in diabetic PAD group,including 10 limbs in Fontaine Ⅰ class,21 limbs in Fontaine Ⅱ class,14 limbs in Fontaine Ⅲ class and 9 limbs in Fontaine Ⅳ class.Patients in common PAD group were selected when PAD were diagnosed through CTA,patients those had the exact history of diabetes or coronary heart disease were exclusion.Patients in control group were collected with negative CTA results.CT perfusion scans of lower extremities were performed in all patients.Time density curve (TDC),Blood flow (BF),blood volume (BV),mean transit time (MMT) and permeability surface (PS) of skeletal muscle in different pathologic stage were obtained with perfusion software.The differences of perfusion parameters among diabetic PAD group,common PAD group and control group were compared by analysis of variance; and the differences of perfusion parameters among control group and all Fontaine classes in diabetic PAD group were also compared.Results TDC of normal skeletal muscle in control group continued to rise,and raise rapidly at an early stage; TDC of diabetic PAD group and common PAD group continued to rise,but raise slowly; the TDC of ischemia skeletal muscle has smaller slope and lower peak value than that of control group.The values of BF were (10.41±0.92) ml · 100 ml-1 · min-1 in control group,(13.37± 1.15) ml · 100 ml-1 · min-1 in diabetic PAD group and (17.12 ±0.81)ml· 100 ml-1· min-1in common PAD group.The values of BV were (1.04± 0.13)ml/L in control group,(1.23 ±0.16)ml/L in diabetic PAD group and (1.84 ±0.23) ml/L in common PAD group.The values of MTT were (11.63 ± 1.45) s in control group,(7.92±0.35) s in diabetic PAD group and (7.82±0.38) s in common PAD group.The values of PS were (3.46±0.84) ml· 100 ml 1· min-1 in control group,(9.84±0.87) ml· 100 ml-1· min-1 in diabetic PAD group and (12.11 ±0.70)ml· 100 ml-1· min-1in common PAD group.The differences of the values of BF,BV,MTT and PS among the three groups were statistically significant (F values were 10.892,4.492,27.543 and 20.506,P all＜0.05).The differences of the values of BF,BV among control group and all Fontaine classes in diabetic PAD group were not statistically significant(P all＞0.05),the differences of the values of MTT,PS were statistically significant.And the differences of the values of MTT,PS between control group and each Fontaine class in diabetic PAD were statistically significant (P all＜0.05).Conclusions CT perfusion imaging of Lower extremity skeletal muscle can prompt the existence of early skeletal muscle ischemia for diabetic PAD.The method can be valuable for clinical early diagnosis.

Mesenteric venous thrombosis (MVT) is a kind of rare intestinal anemic disease.Because the clinical manifestations of MVT do not have high specificity,early diagnosis is difficult.In recent years,with huge progress of medical imaging technology,particularly the clinical application of spiral CT and MRI,the early diagnosis of MVT became possible.With the development of interventional therapies,especially the maturity of the interventional treatment technology such as mesenteric artery perfusion with papaverine,thrombectomy and thrombolysis via percutaneous transhepatic portal vein and so on,MVT mortality rate reduced greatly.The diagnosis and therapy status of MVT were reviewed in this article.

OBJECTIVE:To provide references for the establishment and evolvement of national drugs policy as well as its related research.METHODS:The contents of the new drug strategy and the contents subjected to regular monitoring and evaluation as well the cooperative implementation of the strategy etc were introduced,and its implication for China was analyzed.RESULTS & CONCLUSIONS:The accessibility to essential drugs can be guaranteed with the help of WHO's new drugs strategy,likewise,the accessibility to essential drugs in China can't be realized without the great support of the national drugs policy and the sustainable efforts of both the government and the society.

[Summary] The isolated dissection of the superior mesenteric artery ( IDSMA) was once considered to be a rare disease .In recent years , a growing number of cases of IDSMA have been reported , especially by Chinese authors , because of the increasing use of contrast-enhanced computed tomography scans .To understand the real domestic status of IDSMA , the Chinese-language literatures were searched, and the clinical characteristics and treatment of IDSMA were analyzed .

Objective To analyze the literature of two core periodicals ,Military Medicine of the USA and Journal of the Royal Army Medical Corps of the UK,in order to highlight some important authors ,research institutes and some hot spots in the field of military medicine .Methods Citespace and Excel were used to analyze the data of authors institutes , keywords and citation frequency of the collected records .Results and Conclusion The core authors and critical research institutes are mainly from the USA and UK .America is absolutely taking the leading position in research on military medicine that focuses on injury risk factors , trauma and care , mental health , veteran affairs , military epidemiology and prevention .The results are of referential value for researchers and research administrators to find out about the main core authors ,research institutes and hot spots in military medicine .

The function of the nervous system is largely determined by the communication between neurons and glial cells.The interaction of complex signaling pathways between neurons and glial cells involves in a variety of signaling molecules.Purines and the purinergic receptors play a crucial role in the process of the interaction.For a long time, the study on the central nervous system is mainly focused on neurons, while glial cells are mainly used as support cells or in response to brain injury to provide a guiding role.The latest research shows that glial cells play an important role in the occurrence and development of nervous system diseases.We will summarize the function of purinergic receptors in the interaction of neurons and glial cells and in neurological diseases.