1.Transthoracic Echocardiography Revealed Inferior Vena Cava and Right Atrial Occupation:Report of One Case.
Su-Qiao ZHANG ; Yong-Mei ZHANG ; Jie LIN ; Yu-Qing ZHU
Acta Academiae Medicinae Sinicae 2023;45(6):1011-1014
		                        		
		                        			
		                        			One case with ascites and lower limb edema as the initial manifestations was reported.The echocardiography revealed inferior vena cava and right atrial occupation,which combined with increased alpha fetoprotein and imaging examination,suggested liver malignant tumor combined with tumor thrombus of inferior vena cava and right atrium.After targeted therapy combined with immunotherapy,the tumor shrank and alpha fetoprotein decreased significantly,suggesting that the treatment was effective.The median survival time of the patient was 3 months.This patient had a clear history of cirrhosis due to hepatitis B and was clinically diagnosed with advanced liver cancer,which suggested the importance of early liver cancer screening.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Vena Cava, Inferior/pathology*
		                        			;
		                        		
		                        			alpha-Fetoproteins
		                        			;
		                        		
		                        			Echocardiography
		                        			;
		                        		
		                        			Heart Atria/pathology*
		                        			;
		                        		
		                        			Liver Neoplasms/pathology*
		                        			
		                        		
		                        	
3.Renal angiomyolipoma with inferior vena cava and right atrial embolism: A case report and literature review.
Journal of Central South University(Medical Sciences) 2022;47(12):1763-1768
		                        		
		                        			
		                        			Renal angiomyolipoma (AML) with renal vein, inferior vena cava (IVC), and right atrial embolism is a rare solid tumor, whose etiology and pathogenesis are still unclear. Moreover, it is often misdiagnosed. One patient with renal AML complicated with renal vein, IVC, and right atrial embolism was admitted to the Second Xiangya Hospital of Central South University, who was a 35-year-old female, without any previous medical history, presented with right low back pain for more than 3 years. Computed tomography (CT) scan showed irregular lobulated fatty density mass in the right kidney, renal vein, IVC, and right atrium. The contrast-enhanced scan showed no enhancement of fat components at each phase and mild enhancement of solid components. Radical resection of the right kidney and removal of tumor thrombus were performed, and there was no recurrence 1 year after the operation. It is rare for renal AML to grow along the renal vein, IVC, and extend to the right atrium. Imaging examination is extremely important, and the CT findings of this case are characteristic, but the diagnosis eventually depends on pathological and immunohistochemical examinations.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Vena Cava, Inferior/pathology*
		                        			;
		                        		
		                        			Angiomyolipoma/surgery*
		                        			;
		                        		
		                        			Atrial Fibrillation
		                        			;
		                        		
		                        			Kidney Neoplasms/surgery*
		                        			;
		                        		
		                        			Embolism/pathology*
		                        			;
		                        		
		                        			Heart Atria/diagnostic imaging*
		                        			;
		                        		
		                        			Leukemia, Myeloid, Acute/pathology*
		                        			
		                        		
		                        	
4.Automatic Identification and Classification Diagnosis of Atrial Ventricular Hypertrophy Electrocardiogram Based on Convolutional Neural Network.
Yanni TONG ; Ruiqing ZHANG ; Yang SHEN ; Hua JIANG ; Shijie CHANG ; Xianzheng SHA
Chinese Journal of Medical Instrumentation 2020;44(1):20-23
		                        		
		                        			OBJECTIVE:
		                        			Identifying Atrial Ventricular Hypertrophy Electrocardiogram (AVH ECG)and diagnosing the classification of theirs automatically.
		                        		
		                        			METHODS:
		                        			The ECG data used in this experiment was collected from the First Affiliated Hospital of China Medical University. CNN are combined with conventional methods and a 10 layers of one dimensional CNN are created in this experiment to extract the features of ECG signals automatically and achieve the function of classifying. ROC, sensitivity and F1-score are used here to evaluate the effects of the model.
		                        		
		                        			RESULTS:
		                        			In the experiment of identifying AVH ECG, the AUC of test dataset is 0.991, while in the experiment of classifying AVH ECG, the maximal F1-score can reach 0.992.
		                        		
		                        			CONCLUSIONS
		                        			The CNN model created in this experiment can achieve the auxiliary diagnosis of AVH ECG.
		                        		
		                        		
		                        		
		                        			China
		                        			;
		                        		
		                        			Electrocardiography
		                        			;
		                        		
		                        			Heart Atria/pathology*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypertrophy
		                        			;
		                        		
		                        			Neural Networks, Computer
		                        			
		                        		
		                        	
6.Type 2 Diabetes Induces Prolonged P-wave Duration without Left Atrial Enlargement.
Bin LI ; Yilong PAN ; Xiaodong LI
Journal of Korean Medical Science 2016;31(4):525-534
		                        		
		                        			
		                        			Prolonged P-wave duration has been observed in diabetes. However, the underlying mechanisms remain unclear. The aim of this study was to elucidate the possible mechanisms. A rat model of type 2 diabetes mellitus (T2DM) was used. P-wave durations were obtained using surface electrocardiography and sizes of the left atrium were determined using echocardiography. Cardiac inward rectifier K+ currents (I(k1)), Na+ currents (I(Na)), and action potentials were recorded from isolated left atrial myocytes using patch clamp techniques. Left atrial tissue specimens were analyzed for total connexin-40 (Cx40) and connexin-43 (Cx43) expression levels on western-blots. Specimens were also analyzed for Cx40 and Cx43 distribution and interstitial fibrosis by immunofluorescent and Masson trichrome staining, respectively. The mean P-wave duration was longer in T2DM rats than in controls; however, the mean left atrial sizes of each group of rats were similar. The densities of I(k1) and I(Na) were unchanged in T2DM rats compared to controls. The action potential duration was longer in T2DM rats, but there was no significant difference in resting membrane potential or action potential amplitude compared to controls. The expression level of Cx40 protein was significantly lower, but Cx43 was unaltered in T2DM rats. However, immunofluorescent labeling of Cx43 showed a significantly enhanced lateralization. Staining showed interstitial fibrosis was greater in T2DM atrial tissue. Prolonged P-wave duration is not dependent on the left atrial size in rats with T2DM. Dysregulation of Cx40 and Cx43 protein expression, as well as fibrosis, might partly account for the prolongation of P-wave duration in T2DM.
		                        		
		                        		
		                        		
		                        			Action Potentials
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Blotting, Western
		                        			;
		                        		
		                        			Connexin 43/metabolism
		                        			;
		                        		
		                        			Connexins/metabolism
		                        			;
		                        		
		                        			Diabetes Mellitus, Type 2/*physiopathology
		                        			;
		                        		
		                        			Disease Models, Animal
		                        			;
		                        		
		                        			Echocardiography
		                        			;
		                        		
		                        			Electrocardiography
		                        			;
		                        		
		                        			Fibrosis/pathology
		                        			;
		                        		
		                        			Heart Atria/*diagnostic imaging/physiopathology
		                        			;
		                        		
		                        			In Vitro Techniques
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Membrane Potentials
		                        			;
		                        		
		                        			Microscopy, Fluorescence
		                        			;
		                        		
		                        			Patch-Clamp Techniques
		                        			;
		                        		
		                        			Potassium Channels/metabolism
		                        			;
		                        		
		                        			Rats
		                        			;
		                        		
		                        			Rats, Wistar
		                        			
		                        		
		                        	
7.Organizing Thrombus Mimicking a Cardiac Tumor Located at the Mitral-Aortic Intervalvular Fibrosa.
Ji Seong LEE ; Wan Seop KIM ; Seong Min KO ; Je Kyoun SHIN
The Korean Journal of Thoracic and Cardiovascular Surgery 2016;49(1):42-45
		                        		
		                        			
		                        			Thrombosis at the left ventricular outflow tract occurs without any detectable heart disease or predisposing factors only extremely rarely. A 48-year-old male visited Konkuk University Medical Center with loss of consciousness one month prior to presentation. Before he visited our hospital, he had been diagnosed with a cardiac tumor, which was located between the left atrium and posterior aortic root, and which was adjacent to both the aortic and mitral valves. Cardiac transplantation was recommended at the other hospital because of the high risk of cardiac dysfunction induced by both aortic and mitral valvular dysfunction after surgical resection. Based on preoperative transthoracic echocardiography, cardiac computed tomography, cardiac magnetic resonance imaging, and intra-operative transesophageal echocardiography, we considered it to be a benign tumor. Complete resection was achieved and the pathology confirmed organizing thrombus. We report a case of organizing thrombus mimicking a cardiac tumor, which was located at the mitral-aortic intervalvular fibrosa of the left ventricular outflow tract without any heart disease.
		                        		
		                        		
		                        		
		                        			Academic Medical Centers
		                        			;
		                        		
		                        			Aneurysm, False
		                        			;
		                        		
		                        			Causality
		                        			;
		                        		
		                        			Echocardiography
		                        			;
		                        		
		                        			Echocardiography, Transesophageal
		                        			;
		                        		
		                        			Heart Atria
		                        			;
		                        		
		                        			Heart Diseases
		                        			;
		                        		
		                        			Heart Neoplasms*
		                        			;
		                        		
		                        			Heart Transplantation
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Magnetic Resonance Imaging
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Mitral Valve
		                        			;
		                        		
		                        			Pathology
		                        			;
		                        		
		                        			Thrombosis*
		                        			;
		                        		
		                        			Unconsciousness
		                        			
		                        		
		                        	
8.Aortic stiffness and its influencing factors in patients with chronic kidney disease.
Binxian YE ; Li ZHAO ; Wei SHEN ; Yan REN ; Bo LIN ; Maosheng CHEN ; Junda TANG ; Xinxin JIANG ; Yiwen LI ; Qiang HE
Journal of Zhejiang University. Medical sciences 2016;45(5):508-514
		                        		
		                        			
		                        			                    
To investigate the changes of aortic stiffness and its influencing factors in patients with chronic kidney diseases (CKD).Eightyfour patients with CKD from Department of Nephrology, Zhejiang Provincial People's Hospital were divided into the dialysis group (CKD stage 5,=48) and non-dialysis group (CKD stage 3-5,=36). Clinical data, biochemical parameters and echocardiography findings were collected. SphygmoCor pulse wave analysis system was used to obtain pulse wave analysis (PWA) parameters including central aortic systolic blood pressure (CSP), central pulse pressure (CPP), augmented pressure (AP), augmentation index (AIX), and heart rate 75-adjusted augmentation index (HR75AIX). The influencing factors of aortic stiffness were analyzed by spearman correlation analysis and multiple regression analysis.CSP, CPP, AP, AIX and HR75AIX in dialysis patients had no significant differences compared with those in non-dialysis group (all>0.05). Spearman correlation analysis showed that CSP was positively correlated with systolic blood pressure, diastolic blood pressure, cholesterol, low-density lipoprotein cholesterol, left atrial diameter (LA),left ventricular systolic diameter (LVDs), left ventricular diastolic diameter (LVDd), and negatively correlated with calcium and hemoglobin levels. CPP was positively correlated with systolic blood pressure, age, LA, LVDd, and negatively correlated with diastolic blood pressure and hemoglobin levels. AP was positively correlated with systolic blood pressure, age, LA, LVDd, and negatively correlated with hemoglobin levels. AIX was positively correlated with systolic blood pressure, age, sodium, and negatively correlated with phosphorus levels. HR75AIX was positively correlated with systolic blood pressure, sodium, cholesterol, and negatively correlated with hemoglobin and albumin levels. Multiple regression analysis showed that higher systolic blood pressure was the independent risk factor for CSP (β=0.944,<0.01); lower diastolic blood pressure (β=0.939,<0.01) and higher systolic blood pressure (β=-1.010,<0.01) were the independent risk factors for CPP; older age (β=0.237,<0.01) and higher systolic blood pressure (β=0.200,<0.01) were the independent risk factors for AP; higher systolic blood pressure (β=0.163 and 0.115,<0.05 and<0.01) and higher sodium (β=0.646 and 0.625, all<0.05) were independent risk factors for both AIX and HR75AIX.No significant correlation is observed between aortic stiffness and CKD of different stages. Control blood pressure and restrict sodium intake may be effective means of delaying arterial stiffness in patients with CKD.
		                        		
		                        		
		                        		
		                        			Age Factors
		                        			;
		                        		
		                        			Aorta
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Blood Pressure
		                        			;
		                        		
		                        			physiology
		                        			;
		                        		
		                        			Cholesterol
		                        			;
		                        		
		                        			Dialysis
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Heart Atria
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Regression Analysis
		                        			;
		                        		
		                        			Renal Insufficiency, Chronic
		                        			;
		                        		
		                        			complications
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Sodium, Dietary
		                        			;
		                        		
		                        			adverse effects
		                        			;
		                        		
		                        			Vascular Stiffness
		                        			;
		                        		
		                        			physiology
		                        			
		                        		
		                        	
9.Clinical value of detecting serum soluble CD163 level in patients with atrial fibrillation.
Shi-Mao ZHONG ; Yu-Hua QIN ; Zuo-Cha LI ; Ye-Sheng WEI
Journal of Southern Medical University 2016;36(10):1406-1409
OBJECTIVETo investigate the relationship between atrial fibrillation (AF) and serum soluble CD163.
METHODSA total of 336 patients with heart valve disease were included in this study, including 167 with AF and 169 with sinus rhythm. The clinical data were compared between the two grops, and Logistic regression analysis was used to identify the risk factors associated with AF.
RESULTSThe levels of total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), tumor necrosis factor (TNF), interleukin-6 (IL - 6), high-sensitivity C-reactive protein (hs-CRP) and left atrial diameter (LAD) all differed significantly between the two groups (P<0.05). Serum soluble CD163 levels in AF patients were significantly higher than those in patients with sinus rhythm (P<0.05). Serum soluble CD163 was positively correlated with TNF (r=0.244, P=0.244), IL-6 (r=0.186, P=0.186), hs-CRP (r=0.183, P=0.183) and LAD (r=0.194, P=0.194) in patients with AF. Logistic regression analysis showed that LAD, IL-6, TNF, hs-CRP and CD163 were all associated with AF. ROC curve analysis showed that the area under curve of serum soluble CD163 was 0.861 in patients with AF (CI 95%: 0.820-0.901, P<0.01) with a sensitivity and a specificity of 80.8 and 76.9%, respectively.
CONCLUSIONSerum soluble CD163 level may be a risk factor for AF, and an increased soluble CD163 level may indicate active inflammation in AF patients.
Antigens, CD ; blood ; Antigens, Differentiation, Myelomonocytic ; blood ; Atrial Fibrillation ; blood ; C-Reactive Protein ; analysis ; Heart Atria ; pathology ; Humans ; Inflammation ; blood ; Interleukin-6 ; blood ; Lipoproteins, HDL ; blood ; Lipoproteins, LDL ; blood ; Receptors, Cell Surface ; blood ; Risk Factors ; Tumor Necrosis Factor-alpha ; blood
10.Left Ventricular Filling Pressure as Assessed by the E/e' Ratio Is a Determinant of Atrial Fibrillation Recurrence after Cardioversion.
Hyemoon CHUNG ; Byoung Kwon LEE ; Pil Ki MIN ; Eui Young CHOI ; Young Won YOON ; Bum Kee HONG ; Se Joong RIM ; Hyuck Moon KWON ; Jong Youn KIM
Yonsei Medical Journal 2016;57(1):64-71
		                        		
		                        			
		                        			PURPOSE: Left ventricular (LV) filling pressure affects atrial fibrillation (AF) recurrence. We investigated the relationship between diastolic dysfunction and AF recurrence after cardioversion, and whether LV filling pressure was predictive of AF recurrence. MATERIALS AND METHODS: Sixty-six patients (mean 58+/-12 years) with newly diagnosed persistent AF were retrospectively enrolled. We excluded patients with left atrial (LA) diameters larger than 50 mm, thereby isolating the effect of LV filling pressure. We evaluated the differences between the patients with (group 1) and without AF recurrence (group 2). RESULTS: Group 1 showed increased LA volume index (LAVI) and E/e' compared to group 2 (p<0.05). During a mean follow-up period of 25+/-19 months, AF recurrence after cardioversion was 60.6% (40/66). The area under the receiver operating characteristics curve of E/e' for AF recurrence was 0.780 [95% confidence interval (CI): 0.657-0.903], and the optimal cut-off value of the E/e' was 9.15 with 75.0% of sensitivity and 73.1% of specificity. A Kaplan-Meier survival curve showed that the cumulative recurrence-free survival rate was significantly lower in patients with higher LV filling pressure (E/e'>9.15) compared with patients with lower LV filling pressure (E/e'< or =9.15) (log rank p=0.008). Cox regression analysis revealed that E/e' [hazards ratio (HR): 1.100, 95% CI: 1.017-1.190] and LAVI (HR: 1.042, 95% CI: 1.002-1.084) were independent predictors for AF recurrence after cardioversion. CONCLUSION: LV filling pressure predicts the risk of AF recurrence in persistent AF patients after cardioversion.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Atrial Fibrillation/*physiopathology
		                        			;
		                        		
		                        			Electric Countershock
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Heart Atria/pathology/physiopathology
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Kaplan-Meier Estimate
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Proportional Hazards Models
		                        			;
		                        		
		                        			ROC Curve
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Regression Analysis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Sensitivity and Specificity
		                        			;
		                        		
		                        			Survival Rate
		                        			;
		                        		
		                        			Ventricular Dysfunction, Left/*physiopathology
		                        			
		                        		
		                        	
            
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