OBJECTIVES To document the incidence, timing, degree, and associations of systemic hypoperfusion in the preterm infant and to explore the temporal relation between low systemic blood flow and the development of intraventricular haemorrhage (IVH). STUDY DESIGN 126 babies born before 30 weeks' gestation (mean 27 weeks, mean body weight 991 g) were studied with Doppler echocardiography and cereb...

Introduction. For patients with terminal heart failure, heart transplantation (HTX) has become an established therapy. Before transplantation there are many repeated measurements with a pulmonary artery catheter (PAC) via the superior vena cava (SVC) necessary. After transplantation, endomyocardial biopsy (EMB) is recommended for routine surveillance of heart transplant rejection again through ...

This paper presents a laboratory model for a shunt static var compensator (SVC). Such shunt static var compensator (SVC) is useful in the control of power distribution feeders. The type of the SVC considered in this investigation is the famous thyristor-controlled reactor (TCR) configuration. LABVIEW software has been used as a practical platform to control the operation of the SVC thyristors. ...

Sandeep Yadav Mukhtiar Singh Mohan Student of M.tech power system. in D.C.R.U.S.T Murthal. Assistant Prof. in D.C.U.R.S.T Murthal. Assistant Prof., ABESIT Ghaziabad. Abstract-This paper presents a wind-diesel hybrid system with controllers is taken for controlling main parameters of the system frequency and voltage, which determine the stability and quality of the supply. Voltage mismatch is t...

DESIGN Observational study. SETTING Tertiary University Hospital. PARTICIPANTS/PATIENTS Patients, aged 6 days to 19 years, who underwent contrast enhancement computerized tomography imaging of the thorax (CT-thorax). MAIN OUTCOME MEASURES We measured three lengths consisting of length A in axial plane at the level of the lower border of the 6th C-spine from the skin to RIJV at its mid lum...

Clinical, hemodynamic, and angiocardiographic findings on eight long-term (more than 3 years) survivors of anastomosis of the superior vena cava (SVC) to the right pulmonary artery (RPA) are described. All patients had severe cyanotic congenital heart disease with decreased pulmonary blood flow. Postoperative cardiac catheterization and angiocardiography defined the physiology of the shunt. SVC...

Examination of the behavior of SVCs and STATCOMs in electric power systems is presented. The paper is based on analytical and simulation analysis, and conclusions can be used as power industry guidelines. We explain the principle structures of SVCs and STATCOMs, the models for dynamic studies, and the impact of these devices on steady state voltage and transient voltage stability. Sensitivity a...

The initiation of focal atrial tachycardia (AT) from the superior vena cava (SVC) remains unclear. In 3 patients (2 females, 1 male; aged 57, 66 and 50 years, respectively) with focal AT arising from different parts of the SVC, the AT occurred spontaneously, rather than being induced by electrical stimulation. The cycle length of the tachycardia was highly variable, ranging between 190 and 300 ...

introduction induction of general anesthesia in patients with superior vena cava (svc) syndrome may cause airway obstruction and cardiovascular collapse. case presentation herein, we introduced a patient with the diagnosis of dissecting aneurysm of the ascending aorta who was candidate for emergency surgery. he also had symptoms of svc syndrome. to maintain airway patency during anesthetic mana...

Application of fuzzy PD controller based on self learning algorithm for SVC device has been investigated in this paper. This approach used sensitivity model for learning Self Learning Fuzzy Logic parameters. This has been improved by adding up an integral term whose gain coefficient is also synthesized by learning that is actuated after completion of the main learning algorithm. The paper consi...