Publications by authors named "Huaidong Chen"

Background: Due to the widespread application of bioprosthetic valve in the treatment of mitral valve disease in recent years, the incidence of valve failure has increased significantly, which is facing the need of reoperation. For high-risk patients, transcatheter mitral valve-in-valve placement is increasingly being used as an alternative to surgical reoperation.

Case Presentation: Here we report the successful transapical transcatheter mitral valve-in-valve implantations of J-Valves in 3 patients with high risk of mitral bioprostheses failure.

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Background: Echocardiography plays an important role in the diagnosis of heart disease. Sometimes, however, it may also provide misdiagnosis information.

Case Presentation: We report a rare case of a misdiagnosis of primary mitral valvular tumor with severe regurgitation by preoperative echocardiography.

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We report a case of a tracheal foreign body caused by a sewing needle. After about four months, the patient showed delayed dry cough and hemoptysis. The sewing needle that pierced the tracheal wall damaged the aorta, and we performed endovascular stenting to prevent arterial bleeding and removed it under a bronchoscope.

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A 57-year-old female with paroxysmal atrial fibrillation and an interrupted inferior vena cava (IVC) was referred to our hospital for radiofrequency ablation. Transseptal puncture and left atrium ablation failed through a standard IVC approach via the femoral vein due to intrahepatic interruption of IVC. We performed a modified mini-maze procedure in this patient through the left thoracic cavity under video-assisted thoracoscopic surgery (VATS).

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Left atrial dissection (LatD), also known as left atrial intramural haematoma, is a rare condition that requires rapid diagnosis and frequently calls for timely surgical intervention. Diagnosis can be challenging because of a lack of definitive clinical criteria, and a patient's situation can be complicated by co-morbidities, including unstable haemodynamics. We surgically repaired a case of LatD related to percutaneous coronary intervention (PCI).

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Rationale: Atrioesophageal fistula (AEF) is a rare but serious complication of atrial fibrillation (AF) catheter ablation with associated high mortality rates.

Patient Concerns: A 42-year-old male patient who underwent catheter ablation in local hospital 20 days ago because of persistent AF was admitted to our Emergency Room with unconsciousness and high axillary temperature and white blood cell count. Craniocerebral CT scan found multiple infarct lesions in both frontal and occipital lobes.

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Defects or discontinuities are inevitable during the melting and consolidation process of metal additive manufacturing. Online inspection of microdefects during the processing of layer-by-layer fusion is urgently needed for quality control. In this study, the laser ultrasonic C-scan imaging system is established to detect the surface defects of selective laser melting (SLM) samples that have a different surface roughness.

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Iatrogenic dissections of coronary artery and aorta is a rare and potentially fatal event, often following percutaneous coronary intervention (PCI). The prognosis of patients often depends on early accurate diagnosis and timely and effective treatment. There are no definite guidelines for the treatment of acute coronary artery dissection caused by PCI.

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Rationale: Marfan syndrome (MFS), an autosomal dominant hereditary disease, often results in structural and functional abnormalities of the aortic wall. Because of residual aortic aneurysm or aortic dissection, patients with MFS usually need repeat operations after the first operation.

Patient Concerns: A patient diagnosed with MFS who had undergone 2 surgeries because of abdominal aortic dissection aneurysm and Stanford A type aortic dissection at different times.

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Anomalies of the coronary arteries -- especially their abnormal origin from the pulmonary artery (ARCAPA) trunk -- are among the least common. They're also the most dangerous of congenital heart defects with an incidence of 0.002% in the general population [Williams 2006].

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Pulmonary artery aneurysm (PAA) is a rare condition that results from several pathologies. Here, we report a case of a rare giant PAA accompanied by left lung compression due to recurrent chest tightness for >13 years. Through this case and review of the literature, we explore the treatment options to improve the diagnosis and treatment of PAA.

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Biomedical big data, as a whole, covers numerous features, while each dataset specifically delineates part of them. "Full feature spectrum" knowledge discovery across heterogeneous data sources remains a major challenge. We developed a method called bootstrapping for unified feature association measurement (BUFAM) for pairwise association analysis, and relational dependency network (RDN) modeling for global module detection on features across breast cancer cohorts.

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Objective: Totally endoscopic surgery compared with the conventional heart operation in children is described in this article to find a preferable treatment for congenital heart diseases.

Methods: Between May 2000 and December 2007, 708 children with congenital heart disease were divided into two groups: endoscopic group and conventional group. For the endoscopic group, all children underwent total endoscopic procedures with peripheral cardiopulmonary bypass, transthoracic aortic cross-clamp, and antegrade cardioplegia, whereas for the conventional group, all children were operated in traditional way.

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Objective: To compare diffusion weighted whole body imaging with background body signal suppression (DWIBS) with hybrid Positron Emission Computed Tomography (HPET/CT) on clinical value in oncology.

Methods: 43 patients with oncological diseases were enrolled in our hospital from October, 2008 to April, 2010. All the cases underwent DWIBS and HPET/CT within 14 days.

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Many studies of hemispatial neglect patients have indicated that spatial attention processes operate similarly in visual space and number space. However, some studies have indicated a dissociation of processing between visual line bisection and mental number bisection. A number of investigations have suggested that schizophrenic patients show a mild right pseudo-neglect on visual line bisection tasks.

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