This article aimed to summarise the clinical experience of Professor XIONG Jibai in treating henoch-schonlein purpura （HSP） from the perspective of "simultaneous treatment of wind and blood". HSP was devided into acute phase and transitional phase in clinic. It was considered that the wind pathogen exists throughout the disease course， and the treatment is guided by the "four methods of treating blood" in TANG Rongchuan's Treatise on Blood Syndromes - Blood Vomiting （《血证论·吐血》）， which are stanching bleeding， expelling stasis， tranquilising blood， and tonifying blood. In the acute phase， wind-heat damaging collateral symdrome and blood-heat frenetic flow syndrome are common， which could be treated by the method of cooling blood to dispel wind， and eliminating stasis to stop bleeding， with self-prescribed modified Ziping Xiaofeng Powder （紫萍消风散）； in the transitional phase， syndrome of effulgent fire due to yin deficiency and syndrome of qi deficiency failing to control are common， which could be treated by the method of tranquilising blood and tonifying deficiency， with modified Zhibai Dihuang Decoction （知柏地黄汤） and Guipi Decoction （归脾汤）. At the same time， it is believed that wind-related medicinal has the function of eliminating stasis， stanching bleeding， and cooling blood， and the wind-related medicinal should be used throughout the treatment.

Objective:To evaluate the application value of transabdominal wall suspended laparoscopic appendectomy (LA) in patients with acute suppurative appendicitis or concurrent periappendiceal abscess.Methods:The clinical data of 107 patients with acute suppurative appendicitis or concurrent periappendiceal abscess in Hexi University, Zhangye People′s Hospital from September 2019 to December 2022 were retrospectively analyzed. Among them, 53 patients underwent open appendectomy (OA) (OA group), and 54 patients underwent transabdominal wall suspended LA (LA group). The operation time, postoperative pain score, postoperative hospitalization time, recovery time of gastrointestinal function, postoperative complications and hospital cost were compared between two groups.Results:In the LA group, 2 cases were transferred to OA due to heavy abdominal adhesion and unclear anatomy, and 3 cases could not undergo transabdominal wall suspended LA due to perforation of the root of the appendix or gangrene of the appendix. There was no statistical difference in operation time between two groups ( P>0.05); the postoperative hospitalization time, recovery time of gastrointestinal function, postoperative pain score and total incidence of postoperative complications in LA group were significantly lower than those in OA group: (4.92 ± 1.70) d vs. (7.51 ± 3.96) d, (20.64 ± 7.37) h vs. (35.32 ± 10.13) h, (5.62 ± 1.12) scores vs. (6.83 ± 0.93) scores and 5.56% (3/54) vs. 24.53% (13/53), the hospital cost was significantly higher than that in OA group: (8 325.47 ± 856.22) yuan vs. (6 458.64 ± 2 085.93) yuan, and there were statistical differences ( P<0.05). Conclusions:Transabdominal wall suspended LA has the advantages of wide indications, easy operation, minimal trauma, fast recovery, and fewer complications, but with relatively high hospitalization cost.

The outbreak of public health emergencies would bring an enormous impact on the order of medical treatment and the plan of medical education. In order to minimize the impact of such emergencies on the regular training of surgical residents, Beijing Professional Committee for Standardized Training of Surgical Residents has fully mobilized the enthusiasm of members and given full play to the advantages of special training base, and the committee has launched a series of twelve training courses with the help of an online platform, which provide experience for the training of surgical residents during special periods. This article elaborates on the design of the course, the requirements and selection of online platform, faculty selection and training, resident management, and reflections of future development.

Objective:To compare the efficacy and prognosis of elective nodal irradiation (ENI) combined with nedaplatin chemotherapy and involved field irradiation (IFI) combined with nedaplatin chemotherapy in the radical radiotherapy treatment of patients with cervical or upper thoracic esophageal cancer.Methods:Seventy-eight patients with cervical or upper thoracic esophageal cancer in Hai'an Traditional Chinese Medicine Hospital from February 2017 to February 2020 were selected and divided into ENI group and IFI group according to random number table method, with 39 cases in each group. The ENI group was treated with ENI combined with nedaplatin chemotherapy, while the IFI group was treated with IFI combined with nedaplatin chemotherapy. After 2 months of treatment, the therapeutic effect and the dose of lung irradiation were compared between the two groups, and the occurrence of adverse reactions and prognosis were compared.Results:The total effective rate and disease control rate were 69.23% (27/39) and 82.05% (32/39) in IFI group, and 64.10% (25/39) and 74.36% (29/39) in ENI group, there was no significant difference between the two groups ( χ2 = 0.23, P = 0.631; χ2 = 0.68, P = 0.411). The lung irradiation doses of V 5 Gy and V 20 Gy in IFI group were lower than those in ENI group (both P < 0.05). The incidence rates of bone marrow suppression and radiation lung injury in IFI group were lower than those in ENI group (all P < 0.05). By the end of follow-up, the survival rates of IFI group and ENI group were 76.92% (30/39) and 66.67% (26/39), respectively. There was no significant difference in overall survival between the two groups ( χ2 = 1.06, P = 0.300). Conclusions:ENI and IFI combined with nedaplatin chemotherapy in the radical radiotherapy treatment of cervical and upper thoracic esophageal cancer have similar efficacy and prognosis, but IFI can reduce the lung radiation dose and the incidence of adverse reactions.

Objective:To investigate the predictive effect of intraoperative selective lymph node frozen pathological examination on central lymph node metastasis in thyroid papillary carcinoma (PTC).Methods:A total of 721 PTC patients who underwent primary radical thyroidectomy and central lymph node dissection in Xuanwu Hospital of Capital Medical University from January 2015 to June 2019 were selected. All patients underwent intraoperative selective lymph node frozen pathological examination. According to the paraffin section pathological diagnosis results, there were 449 cases of thyroid micropapillary carcinoma (PTMC) and 272 cases of non-PTMC. The association of the frozen pathological examination results of intraoperative prelaryngeal lymph nodes, anterior tracheal lymph nodes and paratracheal lymph nodes with the pathological results of postoperative central lymph nodes was analyzed in all patients and those with central lymph node positive confirmed by postoperative pathological examination in different groups stratified by tumor long diameter, including 192 cases in PTMC group, 142 cases in long diameter >1 cm and <2 cm group and 55 cases in long diameter ≥2 cm group; postoperative paraffin pathological results were treated as the gold standard. The sensitivity and false negative rate of intraoperative frozen pathological examination in the diagnosis of central lymph node metastasis were calculated.Results:There were 42.8% (192/449) and 72.4% (197/272) of PTMC patients and non-PTMC patients with central lymph node metastasis, respectively. Among 192 PTMC patients with central lymph node metastasis, the sensitivity of prelaryngeal lymph nodes, paratracheal lymph nodes and anterior tracheal lymph nodes was 28.1% (47/167), 61.4% (70/114) and 53.8% (91/169), respectively based on the intraoperative frozen pathological diagnosis. The sensitivity and false negative rate of intraoperative frozen pathological examination in the diagnosis of central lymph node metastasis was 72.4% (139/192) and 27.6% (53/192), respectively. Among 197 non-PTMC patients with central lymph node metastasis, the sensitivity of prelaryngeal lymph nodes, paratracheal lymph nodes and anterior tracheal lymph nodes was 49.7% (82/165), 51.6% (96/186) and 64.7% (112/173), respectively based on the intraoperative frozen pathological results. The sensitivity and false negative rate of intraoperative frozen pathological examination in the diagnosis of central lymph node metastasis was 84.8% (167/197) and 15.2% (30/197), respectively. The sensitivity of intraoperative lymph node frozen pathological results in the diagnosis of central lymph node metastasis for patients with thyroid capsule involvement in PTMC group, long diameter > 1 cm and < 2 cm group and long diameter ≥ 2 cm group was 81.7% (116/142), 81.7% (103/126) and 92.2% (47/51), respectively.Conclusions:Cervical central lymph node metastasis of PTC is common. Intraoperative frozen pathological examination of prelaryngeal lymph nodes, anterior tracheal lymph nodes and paratracheal lymph nodes can effectively predict whether the central lymph nodes are involved, and this hint is more obvious when the tumor long diameter is more than 2 cm and the thyroid capsule is involved.

Interstitial fluid (ISF) flow through vascular adventitia has been discovered recently. However, its kinetic pattern was unclear. We used histological and topographical identification to observe ISF flow along venous vessels in rabbits. By magnetic resonance imaging (MRI) in live subjects, the inherent pathways of ISF flow from the ankle dermis through the legs, abdomen, and thorax were enhanced by paramagnetic contrast. By fluorescence stereomicroscopy and layer-by-layer dissection after the rabbits were sacrificed, the perivascular and adventitial connective tissues (PACTs) along the saphenous veins and inferior vena cava were found to be stained by sodium fluorescein from the ankle dermis, which coincided with the findings by MRI. The direction of ISF transport in a venous PACT pathway was the same as that of venous blood flow. By confocal microscopy and histological analysis, the stained PACT pathways were verified to be the fibrous connective tissues, consisting of longitudinally assembled fibers. Real-time observations by fluorescence stereomicroscopy revealed at least two types of spaces for ISF flow: one along adventitial fibers and another one between the vascular adventitia and its covering fascia. Using nanoparticles and surfactants, a PACT pathway was found to be accessible by a nanoparticle of <100 nm and contained two parts: a transport channel and an absorptive part. The calculated velocity of continuous ISF flow along fibers of the PACT pathway was 3.6‒15.6 mm/s. These data revealed that a PACT pathway was a "slit-shaped" porous biomaterial, comprising a longitudinal transport channel and an absorptive part for imbibition. The use of surfactants suggested that interfacial tension might play an essential role in layers of continuous ISF flow along vascular vessels. A hypothetical "gel pump" is proposed based on interfacial tension and interactions to regulate ISF flow. These experimental findings may inspire future studies to explore the physiological and pathophysiological functions of vascular ISF or interfacial fluid flow among interstitial connective tissues throughout the body.

Objective: To compare the anti-inflammatory effect of Fraxini Cortex pieces between integrated production process and traditional processing method. Methods: The model of rat paw swelling induced by carrageenan was used to study the anti-inflammatory and swelling reliving effects of water extracts of Cortex Fraxini with different methods. The main chemical components of the 2 kinds of Cortex Fraxini herbal pieces were determined by high performance liquid phase. Results: Compared with the blank group, the water extracts of the 2 kinds of Cortex Fraxini could reduce the swelling of the rats and improve the various indicators of inflammation. However, the anti-inflammatory and swelling reliving effects of the integrated processing of Cortex Fraxini were more significant. The contents of 4 main active ingredients of esculine, fraxin, aesculetin and fraxetin in the integrated processing of Cortex Fraxini were higher than that of the traditionally processed Cortex Fraxini. The total amount of 4 kinds of coumarins in the integrated Cortex Fraxini was about 1.5 times that of the traditionally processed water extract of Cortex Fraxini. Conclusion: The integrated processing and traditional processing of Cortex Fraxini have similar effects on anti-inflammatory effects, and have the superiority of reducing the loss of active ingredients, which is worthy of popularization and application.

Objective To examine the clinical effect and learning curve of endoscopic thyroidectomy via chest-areolar approach in the treatment of benign thyroid nodules. Methods From January 2012 to May 2016,49 patients underwent endoscopic thyroidectomies via chest-areolar approach in Xuanwu Hospital ,Capital medical university. The clinical characteristics ,prognosis and operation time were retrospectively analyzed. The patients were divided into 9 groups according to the surgical sequence ,and the learning curves were analyzed by using moving average method. Results 49 endoscopic thyroidectomies via chest-areolar approach were performed successfully. The average size of the nodules was(2.80 ± 0.62)cm. 10 patients underwent bilateral thyroidectomy and 39 underwent unilateral thyroidectomy. The average operation time was(157.49 ± 21.23)min. 2 cases received re-operation due to postoperative pathology of malignancy. There were no postoperative recurrent laryngeal nerve injuries. 11 patients suffered from asymptomatic hypocalcemia with parathyroid hormone in the normal range. All of the patients were satisfied with the cosmetic results. The learning curves indicated that 35 endoscopic thyroidectomies were needed to be performed in the early study stage. Conclusions For surgeons with experience of conventional thyroidectomies,endoscopic thyroidectomy via chest-areolar approach is feasible and safe for selected patients. There is a significant learning curve in the application of endoscopic thyroidectomy. In the early study stage of endo-scopic thyroidectomy,35 cases are basically required for beginning surgeons to practice the surgical operation.

Objective:To observe the effect of emotional stimulation on the formation process of atherosclerosis ( AS) ,and explain the role of hydrogen sulfide ( H2 S) in atherosclerotic lesions. Methods:Twenty-four Sprague-Dawley rats were randomly divided into AS group, qi-stagnation and blood-stasis AS group and the control group. The AS group was fed with special diets, the qi-stagnation and blood-stasis AS group was fed with special diets and emotional stimulation, and the control group was fed with normal diets. During the experiment, the indicators including the characterization score, H2 S content, four items of the natural bleeding and blood coagula-tion, tissue blood flow and blood lipid were respectively detected in the 4 th, 8 th and 12 th week. Results:Compared with those in the AS group, since the 4 th week, the rats in qi-stagnation and blood-stasis AS group were with significantly decreased activity, slow re-sponse, lackluster fur and dark purple tongue (P<0. 01);the level of plasma lipid increased significantly, and increased further with time extension(P<0. 05 or P<0. 01);since the 8 th week, APTT and FIB changed significantly (P<0. 05),the blood flow to skin, liver and kidney decreased significantly (P<0. 05);the content of H2S was significantly higher in the 12 th week (P<0. 01). Con-clusion:Emotional stimulation promotes the formation of AS model,and the gas molecule system of H2 S plays a regulatory role in the qi-stagnation and blood-stasis AS animal model.

ABSTRACT:Objective To investigate the prevalence of thyroid nodules in Xi’an City by ultrasonography and study the correlation between thyroid nodules and the components of metabolic syndrome.Methods We recruited 4 527 subjects in this cross-sectional study and divided them into thyroid nodules (TN)group and non-thyroid nodules (NTN)group.The height,weight,blood pressure,blood sugar,lipid,and serum uric acid were measured and analyzed.The relationship between thyroid nodules and thyroid function was assessed in the subjects who received TT3,TT4,TSH,TGAB,and TPOAB tests.Results ① The prevalence of thyroid nodules was 31.8% and was significantly higher in the female patients (38.4% vs.27.1%,χ2=64.44,P<0.001).However,the prevalence of metabolic syndrome was 9.1% and was significantly higher in the male ones (11.4% vs.5.9%,χ2=40.39,P<0.001).② Compared with that in NTN group,TT3 in TN group was significantly increased (t=6.04,P<0.001), but the other indexes did not obviously change in the two groups (P>0.05).③ Age,systolic blood pressure,and TG,LDL-C and serum uric acid levels were remarkably higher in TN group than in NTN group (P<0.001 ). Conclusion The prevalence of thyroid nodules in Xi’an City is noticeably high.High systolic blood pressure level, dyslipidemia and elevated uric acid are associated with thyroid nodules.Therefore,screening and management of the individuals with aforementioned characteristics deserve more attention.