Objective:To evaluate the value of the ratio of tricuspid annular plane systolic excursion to pulmonary artery systolic pressure (TAPSE/PASP) in evaluating right ventricular function of patients with hypertrophic cardiomyopathy (HCM) and heart failure with preserved ejection fraction (HFpEF).Methods:A total of 74 patients with HCM and HFpEF and 22 healthy individuals who visited the First Affiliated Hospital of Zhengzhou University from January 2021 to January 2023 were included in this study. The HCM patients with HFpEF were divided into three groups based on the tertiles of the TAPSE/PASP (low group: <0.280 0 mm/mmHg; middle group: 0.280 0-0.476 2 mm/mmHg; high group: >0.476 2 mm/mmHg). Conventional echocardiographic parameters were collected, and two-dimensional speckle tracking technology was used to obtain right ventricular strain parameters. The differences in parameters among the groups were compared, and the correlations between TAPSE/PASP and clinical parameters and right ventricular function parameters were analyzed.Results:The results of difference analysis showed that there were significant differences in 6-minute walking test, New York Heart Association grade (NYHA grade), incidence of atrial fibrillation, left atrial area (LAA), left ventricular global longitudinal strain (LVGLS), TAPSE, PASP, right ventricular fractional area change (RVFAC), right ventricular global longitudinal strain (RVGLS), right ventricular free wall strain (RVFWST) and cardiac magnetic resonance right ventricular ejection fraction (CMR-RVEF) among the three groups. The results of correlation analysis and multiple linear regression analysis showed that the TAPSE/PASP was positively correlated with 6-minute walking distance, RVFAC, tricuspid annulus peak systolic velocity (RV s′), and CMR-RVEF ( r=0.449, 0.284, 0.358, 0.577; all P<0.05). It was negatively correlated with N-terminal pro-brain natriuretic peptide (NT-proBNP), NYHA grade, LAA, mitral early diastolic peak velocity / mitral annulus early diastolic peak velocity (LV E/e′), LVGLS, RVGLS, RVFWST and tricuspid early diastolic peak velocity / tricuspid annulus early diastolic peak velocity (RV E/e′) (r/ rs=-0.336, -0.349, -0.468, -0.452, -0.444, -0.339, -0.405, -0.320; all P<0.05). The LAA and CMR-RVEF correlated independently with TAPSE/PASP(all P<0.05). Conclusions:The TAPSE/PASP can provide an early, simple, rapid, and convenient evaluation of right ventricular function in patients with HCM and HFpEF, so as to guide clinical treatment and monitoring disease progression.

Objective:To explore the clinical characteristics of persistent HBeAg positivity in patients with chronic hepatitis B treated with nucleos(t)ide analogues.Methods:A retrospective analysis was performed according to different data types. An independent sample t-test, Mann-Whitney U test, chi-square test, or Fisher's exact probability method were used. Chronic hepatitis B patients followed up for four years were collected from the follow-up case database of the Department of Infectious Diseases of Zhongshan Third Hospital from January 2009 to December 2018 and were divided into two groups, A and B, with 87 and 145 cases respectively, according to the duration of HBeAg-negativity≤ 3 and persistent positivity >3 years. Statistical analysis was conducted on the age, gender, family history, baseline, follow-up visit duration, liver function, and other data among the two patient groups.Results:There were no statistically significant differences in gender, age, family history of liver cirrhosis, family history of liver cancer, liver cirrhosis condition before treatment, fatty liver disease combined condition before treatment, baseline HBsAg, anti-HBc, alanine aminotransferase, albumin, or total bilirubin between the two groups of patients ( P ?>?0.05). HBV DNA and HBeAg were significantly higher in group B than those in group A at baseline, with P≤0.001. Aspartate aminotransferase and γ-glutamyl transferase were significantly higher in group A than those in group B at baseline. The proportion of family history of hepatitis B was significantly higher in group B (69.0%) than that in group A (50.6%) among the two groups of patients, and the difference was statistically significant ( P ?=?0.005). The proportion of mothers with hepatitis B was significantly higher in group B (25.5%) than in group A (11.5%), P ?=?0.010. During the treatment process, the HBV DNA quantification was significantly higher in group B than that in group A at 0.5 and 1 years (P≤0.002). The proportion of HBV DNA <100IU/ml was also significantly different at six months and one year (χ 2=30.327, P ??0.05). Conclusion:HBeAg-positive patients with chronic hepatitis B have persistent HBeAg positivity when treated with long-term nucleos(t)ide analogues. Accordingly, a greater proportion of this kind of patient family and mothers have a remarkable history of hepatitis B and a reduced HBV DNA relapse rate in the early stages (within a year or less).

Objective:To screen the main characteristic variables affecting the incidence of cardiovascular and cerebrovascular diseases,and to construct the Bayesian network model of cardiovascular and cerebrovascular disease incidence risk based on the top 10 characteristic variables,and to provide the reference for predicting the risk of cardiovascular and cerebrovascular disease incidence.Methods:From the UK Biobank Database,315 896 participants and related variables were included.The feature selection was performed by categorical boosting(CatBoost)algorithm,and the participants were randomly divided into training set and test set in the ratio of 7∶3.A Bayesian network model was constructed based on the max-min hill-climbing(MMHC)algorithm.Results:The prevalence of cardiovascular and cerebrovascular diseases in this study was 28.8％.The top 10 variables selected by the CatBoost algorithm were age,body mass index(BMI),low-density lipoprotein cholesterol(LDL-C),total cholesterol(TC),the triglyceride-glucose(TyG)index,family history,apolipoprotein A/B ratio,high-density lipoprotein cholesterol(HDL-C),smoking status,and gender.The area under the receiver operating characteristic(ROC)curve(AUC)for the CatBoost training set model was 0.770,and the model accuracy was 0.764;the AUC of validation set model was 0.759 and the model accuracy was 0.763.The clinical efficacy analysis results showed that the threshold range for the training set was 0.06-0.85 and the threshold range for the validation set was 0.09-0.81.The Bayesian network model analysis results indicated that age,gender,smoking status,family history,BMI,and apolipoprotein A/B ratio were directly related to the incidence of cardiovascular and cerebrovascular diseases and they were the significant risk factors.TyG index,HDL-C,LDL-C,and TC indirectly affect the risk of cardiovascular and cerebrovascular diseases through their impact on BMI and apolipoprotein A/B ratio.Conclusion:Controlling BMI,apolipoprotein A/B ratio,and smoking behavior can reduce the incidence risk of cardiovascular and cerebrovascular diseases.The Bayesian network model can be used to predict the risk of cardiovascular and cerebrovascular disease incidence.

Objective To observe the safety and the feasibility of biplane transrectal ultrasonography-guided transperineal biopsy for diagnosing women pelvic space-occupying lesions.Methods Data of 14 female patients with pelvic space-occupying lesions who underwent biplane transrectal ultrasonography-guided transperineal biopsy were retrospectively analyzed.The location of pelvic space-occupying lesions,the causes for not performing biopsy transabdominally nor transvaginally,the time consuming and complications of biplane transrectal ultrasonography-guided transperineal biopsy as well as pathological results were collected.Results Among 14 cases,there were 4 cases of rectum mass,3 cases of unilateral or bilateral ovaries masses,5 cases of cervix or lower uterus mass,1 case of mass at the lateral wall of the vagina and 1 case of mass at the posterior part of the bladder.Since vagina abnormalities including severe bleeding,fungal infections,deformities,edema or after vaginal resection,or deep location of lesions and high risk of intestinal tubes injuries,transabdominal or transvaginal puncturing and biopsy were not performed.The time consuming of puncturing and biopsy were(29.50±6.05)min.During the procedures,bleeding in the puncturing tract and vagal reflex occurred each in 1 case,while no obvious complication was observed during 6-month follow-up.Biopsy pathology reported 5 cases of squamous cell carcinoma,2 cases of high grade serous carcinoma,1 case of malignant melanoma,1 case of low grade serous carcinoma,1 case of adenocarcinoma and 1 case of spindle cell tumor,as well as 3 cases of chronic inflammation,all were consistent to post operation pathology or follow-up results.Conclusion Biplane transrectal ultrasonography-guided transperineal biopsy was safe and feasible for diagnosing women pelvic space-occupying lesions.

Objective:To search for valuable laboratory indexes of early diagnosis of anastomotic leakage after anterior resection for rectal carcinoma.Methods:From Sep 2017 to Jan 2019, 128 patients with colorectal cancer underwent anterior rectal resection at the Department of Colorectal & Anal Surgery, the 940 Hospital of the Joint Logistics Support Force.Results:Anastomotic leakage occurred in 16 of 128 patients (12.5%). Definite diagnosis of anastomotic leakage was made on between 2nd and 9th day, postopera tively averagign (6.13±2.00) days. Tumor location was a risk factor for anastomotic leakage with the incidence significantly lower when the distance from the lower edge of the tumor to the anal margin >7 cm than when the distance ≤7 cm ( χ 2=6.022, P=0.014). The percentage of increase in peripheral blood leukocytes, neutrophils, serum interleukin-6, C-reactive protein and procalcitonin in patients 3-5 days after surgery significantly related to the occurrence of anastomotic leakage (all P<0.05). The area under the working characteristic curve of the subjects with the percentage of C-reactive protein, procalcitonin, interleukin-6, leukocytes and neutrophils from the 3rd to the 5th day after operation was greater than 0.5. Conclusion:C-reactive protein, procalcitonin, interleukin-6, leukocyte and neutrophil percentage are risk factors predicting anastomotic leakage after anterior resection of rectal cancer.

Objective To explore the common CT signs of acquired immune deficiency syndrome(AIDS)-associated pneumocystis jirovecii pneumonia(PJP).Methods The chest CT data of 123 patients with AIDS-associated PJP were analyzed retrospectively.Results Multifocal lesions in both lungs were found in all cases.Distribution characteristics were as follows:diffuse and symmetrical distribution in both lungs in 100 cases(81.3％),diffuse and asymmetrical distribution in both lungs in 15 cases(12.2％),and scattered distribution in both lungs in 8 cases(6.5％).The density and morphological features were as follows:ground glass opacity in 120 cases(97.6％);"lunate arch sign"in 25 cases(20.3％);pulmonary interstitial proliferation in 103 cases(83.7％);crazy paving pattern in 14 cases(11.4％);patchy or consolidation shadow in 55 cases(44.7％);pulmonary cysts in 26 cases(21.1％);and nodular in 26 cases(21.1％).Other rare signs included pleural effusion in 11 cases,pericardial effusion in 6 cases,mediastinal and hilar lymphadenopathy in 9 cases,and mediastinal emphysema in 1 case.Conclusion The chest CT manifestations of AIDS-associated PJP have certain characteristics,including diffuse and symmetrical distribution of lesions in both lungs,as well as ground glass opacity and interstitial hyperplasia as common signs,especially,"lunate arch sign"and pulmonary cysts are more specific signs.

Concerning on the safety risks caused by electromagnetic interference of patients implanted with high-risk active implantable medical devices in the environment of domestic MUs, this study evaluates and focuses on the requirements of electromagnetic compatibility in domestic and international standards for rail transit vehicles, the main mechanism of risks caused by EMI, the actual measurement of environmental data in MUs and the working performance of various active implantables in the compartment. The test results shows that all kinds of active implantable medical device samples works normally in the CRH2A EMU in China, and there is still a large margin between the measured radiation emission in MU and the limit required by the standards.
China ; Electromagnetic Fields ; Electromagnetic Radiation ; Humans ; Pacemaker, Artificial ; Prostheses and Implants

Objective:To observe the changes of blood cell count, and levels of hormone, glucose, and electrolytes at adrenocorticotrophic hormone (ACTH) and thyrotropic hormone (TSH) axes in patients with traumatic brain injury (TBI) at early stage, and explore the correlations among these indicators.Methods:Prospective selection of 93 patients with TBI (TBI group), admitted to our hospital from March 2018 to July 2019, and 18 health subjects accepted physical examination (control group) during the same period was performed. TBI patients were divided into mild, moderate, and severe subgroups according to Glasgow coma scale (GCS) scores at admission. The changes of blood cell count, and levels of hormone, glucose, and electrolytes of these TBI patients and the control subjects were detected on the 2 nd, 8 th, and 15 th d of TBI. Results:(1) The cortisol (COR) level in TBI group was significantly higher than that in control group on the 2 nd and 8 th d of TBI (P<0.05); COR level in TBI group was decreased on the 2 nd, 8 th, and 15 th d of TBI, successively. TSH level in the TBI group was significantly lower than that in control group on the 2 nd d of TBI; TSH level in patients from the TBI group on the 8 th and 15 th d of TBI was significantly higher than that on the 2 nd d of TBI (P<0.05). Triiodothyronine (T3) level in the control group, and mild, moderate, and severe TBI subgroups decreased successively on the 2 nd d of TBI; and T3 level in TBI group was significantly lower than that in the control group on the 8 th and 15 th d of TBI; T3 level in the TBI group on the 15 th d of TBI was significantly higher than that on the 2 nd and 8 th d of TBI (P<0.05). Tetraiodothyronine (T4) level in the control group, and mild, moderate, and severe TBI subgroups decreased successively on the 2 nd d of TBI; and T4 level in the control group was significantly higher than that in the mild and severe TBI subgroups on the 8 th d of TBI(P<0.05); patients in the severe TBI subgroup had increased T4 level successively on the 2 nd, 8 th, and 15 th d of TBI. Free triiodinated thyroxine (FT3) level in the control group, and mild, moderate and severe TBI subgroups decreased successively on the 2 nd d of TBI; and FT3 level in the TBI group was significantly lower than that in the control group on the 8 th and 15 th d of TBI; FT3 level in TBI group on the 15 th d of TBI was significantly higher than that on the 2 nd and 8 th d of TBI (P<0.05). Free tetraiodothyronine (FT4) level in the control group and moderate TBI subgroup was significantly higher than that in the mild and severe TBI subgroups on the 2 nd and 8 th d of TBI (P<0.05). (2) The white blood cell (WBC) count of the TBI group was significantly higher than that of the control group on the 2 nd d of TBI (P<0.05); the WBC count in the moderate TBI subgroup, severe TBI subgroup, mild TBI subgroup and control group decreased, successively, on the 8 th d of TBI; the WBC count in the severe TBI subgroup, mild TBI subgroup, moderate TBI subgroup and control group decreased, successively, on the 15 th d of TBI; the WBC count in the patients of mild TBI subgroup on the 8 th and 15 th d of TBI was significantly lower than that on the 2 nd d of TBI, and that in patients of moderate and severe TBI subgroups on the 15 th d of TBI was significantly lower than that on the 2 nd and 8 th d of TBI (P<0.05). The red blood cell (RBC) count in the mild, moderate, and severe TBI subgroups, and control group were increased, successively, on the 2 nd, 8 th, and 15 th d of TBI. The platelet (PLT) count in the TBI group was significantly lower than that in the control group on the 2 nd d of TBI, and the PLT count in the mild and moderate TBI subgroups, and control group was significantly lower than that in the severe TBI subgroup on the 15 th d of TBI (P<0.05); the PLT count in the TBI group increased successively on the 2 nd, 8 th, and 15 th d of TBI. The blood glucose level in the control group, and mild, moderate and severe TBI subgroups increased, successively, on the 2 nd d of TBI, and the blood glucose in the severe TBI subgroup was statistically higher than that in the control group on the 8 th d of TBI; the blood glucose level in the TBI subgroup decreased, successively, on the 2 nd, 8 th, and 15 th d of TBI. Potassium level in the mild, moderate and severe TBI subgroups was significantly higher than that in the control group on the 15 th d of TBI; significantly higher potassium level on the 8 th and 15 th d of TBI was noted than that on the 2 nd d of TBI in patients from the moderate and severe TBI subgroups (P<0.05). The sodium content in the severe TBI subgroup was significantly higher than that in the mild and moderate TBI subgroups and control group on the 2 nd d of TBI; the sodium content in the severe TBI subgroup was statistically lower than that in the control group on the 15 th d of TBI (P<0.05). In patients from the severe TBI group, the sodium and chlorine contents on the 8 th and 15 th d of TBI were significantly lower than those on the 2 nd d of TBI. The blood calcium content in the moderate TBI subgroup and control group was significantly higher than that in the mild and severe TBI subgroups on the 2 nd d of TBI, and the calcium content in the severe TBI subgroup was significantly lower than that in the control group on the 15 th d of TBI; calcium content in the mild and severe TBI subgroups on the 8 th and 15 th d of TBI was significantly higher than that on the 2 nd d of TBI ( P<0.05). (3) In TBI patients, WBC count and blood glucose level were positively correlated with COR, and negatively correlated with TSH, T3 and FT3 levels ( P<0.05). RBC count was negatively correlated with TSH level, and positively correlated with FT4 level ( P<0.05). PLT count was negatively correlated with COR and positively correlated with ACTH, TSH, T3, T4 and FT3 levels ( P<0.05). Potassium was positively correlated with TSH, T3, T4, FT3 levels, and negatively correlated with COR ( P<0.05). Sodium was negatively correlated with TSH, T4, FT3 and FT4 levels, and positively correlated with COR ( P<0.05). Chlorine was negatively correlated with COR, TSH, T4, FT3 and FT4 levels ( P<0.05). Calcium was positively correlated with T3, T4, FT3 and FT4 levels ( P<0.05). Conclusions:The more severe the injury of TBI patients, the more significant the decline of T3, FT3, and FT4 levels and RBC count, and the more significant the increase of WBC count and glucose level. Most of them gradually returns to normal within one-2 weeks of injury. It is recommended to evaluate ACTH axis and TSH axis functions when blood cell count, glucose, and electrolytes are abnormal after TBI.

OBJECTIVE: To evaluate the efficacy of internal fixation of lateral and medial borders for displaced scapular body fractures via the minimally invasive approach. METHODS: The internal fixation of lateral and medial borders via minimally invasive approach was applied in surgical treatment of 23 patients with scapular body comminuted fractures from January 2014 to June 2018. The lateral approach was made straightly orienting over the lateral border of scapula. The dissection was taken down to the deltoid fascia. The deltoid was retracted cephalically, revealing the external rotators. Blunt dissection was used down to the lateral border between infraspinatus and teres minor, exposing the fracture site. The medial incision was done along the medial border of the scapula over site of the fracture. Dissections were taken down to the fascia and the periosteum. A subperiosteal dissection was then performed to elevate the infraspinatus to the degree necessary to visualize the fracture. The medial and lateral borders of scapula body were fixed with plates and screws in a frame-like way. RESULTS One patient developed the delayed healing of the incisions due to liquefactive fat necrosis. The other 22 patients showed no complications of the incisions. The glenopolar angle (GPA) of fractured scapula was increased from preoperative (25±12) degrees to postoperative (41±5) degrees (P<0.01). The healing time of fractures healed was 3-8 months, with an average time of (4.4±1.3) months. CONCLUSIONS The lateral-medial combined fixation through minimally invasive surgical approach for the scapula body fractures allows visualization of fracture reduction without extensive muscular or subcutaneous flaps, and is associated with successful fracture healing and high functional scores of the shoulder.

The various mechanisms of kyphosis of the spine and the differential diagnosis of related diseases to guide the selection of appropriate surgical timing, correct spinal osteotomy and reasonable surgical methods. The 24 patients with kyphosis from January 2016 to January 2018 were diagnosed. All patients underwent kyphosis orthopedics, mainly spinal wedge osteotomy, to obtain orbital purpose by wedge osteotomy. The indexes of the spine form, activity, and pain were observed after operation. Of the 24 patients with kyphosis, 5 patients were treated conservatively, and the symptoms of kyphosis were effectively relieved. 19 patients underwent kyphosis orthopedic surgery, and the anterior spine and posterior closed osteotomy. The patients recovered well after surgery and were followed up regularly. The treatment of high anterior spine and posterior closed osteotomy in patients with kyphosis has accurate surgery effect. There are no complications such as pain and internal fixation during the regular follow-up.