To assess superior vena caval (SVC) obstruction after the Mustard operation for transposition of the great arteries, we performed two-dimensional contrast echocardiography (2-D contrast echo) in 18 patients, ages 1-9 years. Sterile saline was injected into a peripheral scalp or arm vein while the junction of the inferior vena cava (IVC) and the systemic venous atrium (SVA) was imaged from the s...

Superior vena cava (SVC) syndrome is usually caused by malignant tumors or their lymph node metastases oppressing a SVC. However, we encountered a case of SVC syndrome that was caused by a thrombus in the SVC, which we considered as a manifestation of Trousseau's syndrome triggered by underlying prostate cancer. A 60-year-old man patient complained of facial swelling. Physical examinations sugg...

Total absence of superior vena cava (SVC) is a very rare anomaly, and the patient usually suffers from SVC syndrome or conduction disturbances. We report an asymptomatic 27 year-old male, with complete absence of SVC. Transthoracic echocardiography and computed tomography demonstrated the absence of SVC and other congenital cardiac anomalies, but the presence of prominent collateral vessels tha...

Although invasive thymoma commonly infiltrates neighbouring mediastinal structures, its extension into the superior vena cava (SVC) and consequent SVC occlusion are rare. In such cases, the urgent removal of the thymoma and radical resection of the infiltrated SVC representreasonable options, since induction therapy is time-consuming and useless for symptom resolution. A case of invasive thymom...

This paper deals with the design of multi-machine power system stabilizers (PSSs) and Static var compensator (SVC) using Modified shuffled frog leaping algorithm (MSFLA). The effectiveness of the proposed scheme for optimal setting of the PSSs and SVC controllers has been attended. The PSSs and SVC controllers designing is converted to an optimization problem in which the speed deviations betwe...

The objective of this study was to measure the defibrillation threshold (DFT) associated with different electrode placements using a three-dimensional anatomically realistic finite element model of the human thorax. Coil electrodes (Endotak DSP, model 125, Guidant/CPI) were placed in the RV apex along the lateral wall (RV), withdrawn 10 mm away from the RV apex along the lateral wall (RVprox), ...

BACKGROUND Obesity reduces FVC, the most commonly used measurement of vital capacity (VC) and slow VC (SVC). It is unknown whether the difference between SVC and FVC is constant in different body mass indices (BMIs). We hypothesized that the difference between SVC and FVC increases as a function of BMI. METHODS We retrospectively reviewed pulmonary function tests (PFTs) that included spiromet...

As an extension of ν-support vector machine for classification (SVC), Extended ν-SVC was developed by Perez-Cruz et al. Their numerical experiments confirm the validity of Extended ν-SVC, but we need to solve a nonconvex QP problem for Extended ν-SVC. In the paper, we propose a modification for the existing algorithm of Extended ν-SVC, which makes possible to analyze the finite convergence and ...

Percutaneous transluminal stenting has been well documented in use for the treatment of superior vena cava (SVC) obstruction. It offers relatively safe and rapid alleviation of the symptoms of SVC obstruction due to malignancy compared with other treatment modalities. However, cardiac tamponade after stenting treatment occasionally occurrs. Here, we present a case of 48-year-old female patient ...

BACKGROUND Repair of partial anomalous pulmonary venous connection (PAPVC) to the high portion of the superior vena cava (SVC) may be complicated by atrial arrhythmia and obstruction of the pulmonary veins or SVC. We reviewed our experience with the modified Warden technique, in which the SVC was transected and anastomosed to the right atrial appendage with anterior augmentation of pedicled aut...