Interatrial shunt - PowerPoint PPT Presentation


DEVELOPMENT OF INTERATRIAL AND INTERVENTRICULAR SEPTUM

Human heart development begins in the 3rd week of gestation with the formation of heart tubes that eventually differentiate into various cardiac structures. The heart undergoes folding and septation processes during development, leading to the formation of crucial septa. Molecular regulation, involv

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Understanding Pulmonary Circulation and V/Q Ratio in Respiratory Physiology

Explore the high-pressure and low-pressure circulations supplying the lungs, the concept of physiological shunt in pulmonary circulation, different lung zones based on blood flow, V/Q ratio and its clinical significance, and abnormal V/Q ratio patterns. Delve into the role of pulmonary circulations

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Double-blind, Randomized Trial of Interatrial Shunt in HF Patients

This study details the principal results of the RELIEVE-HF trial, investigating the safety and effectiveness of the V-Wave Ventura interatrial shunt device in patients with heart failure with reduced and preserved ejection fraction. Key inclusion and exclusion criteria are outlined, emphasizing the

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Understanding Ventilation-Perfusion Ratio in Pulmonary Circulation

This lecture delves into the intricate relationship between ventilation and perfusion in the lungs, highlighting the importance of proper gas exchange for optimal respiratory function. It discusses the circulations supplying the lungs, defines the V/Q ratio, and explores the clinical significance of

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Understanding Performance of Transmission Lines in Electrical Engineering

The performance of a transmission line in power systems is critical for efficient operation. Factors such as voltage drop, line losses, and transmission efficiency are key considerations in design and operation. The line parameters of resistance, inductance, capacitance, and shunt conductance play c

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Understanding D'Arsonval Meter in Alternating Current Circuits

Explore the principles behind D'Arsonval meter in AC circuits, including half-wave rectification. Learn about sensitivity differences between DC and AC voltmeters, calculating series resistance, multiplier resistor values, and practical applications. Discover how shunt resistors improve linearity in

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Safety and Feasibility of TIPS in Elderly Patients with Liver Cirrhosis

Challenging liver cirrhosis management in elderly patients with refractory ascites has high mortality rates, and transplantation is not always viable. Transjugular intrahepatic portosystemic shunt (TIPS) serves as a non-curative treatment option, aiming to reduce portal hypertension. The procedure i

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Understanding Electric Braking Systems

Braking is the process of reducing the speed of moving or rotating equipment, such as vehicles or locomotives. This presentation by Poonam Sharma covers the classification of braking into Mechanical and Electrical categories, highlighting the advantages and disadvantages of each. It delves into type

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Understanding Feedback Amplifiers in Electronic Circuits

Feedback amplifiers play a crucial role in electronic circuits by providing mechanisms for controlling gain, stability, and overall performance. There are two basic types of feedback - positive and negative, each offering distinct advantages. The four ways of connecting feedback signals involve volt

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Microwave Filter Design Using Transmission Lines

Explore the design of microwave filters using transmission lines, starting with lumped-element designs and transitioning to transmission line approximations. Learn how to realize series inductors and shunt capacitors using narrow and wide sections of microstrip lines. Discover techniques such as Ric

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Portal Vein Imaging Techniques and Anomalies Overview

Portal vein imaging is crucial for evaluating conditions affecting the abdominal part of the gastrointestinal tract. Techniques such as spleno-portography and CT triphasic contrast imaging are used to visualize the portal vein and diagnose anomalies like portal-systemic collaterals and porto-systemi

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Breakdown Test of SW Accelerator Cavity with Shaped Iris

In a study by J.M. Neilson, V. Dolgashev, and S. Tantawi at SLAC National Accelerator Laboratory, planned breakdown tests were conducted on a single-cell SW accelerator cavity with shaped iris geometries. The research assessed breakdown dependence, different iris parameters, and compared elliptical

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Understanding Magnetic Circuits in DC Machines

A magnetic circuit in a DC machine includes components like yoke, poles, air gap, armature core, and more, through which magnetic flux flows. The design of field windings, such as shunt and series windings, plays a crucial role in the operation of the machine. Determining factors for the field windi

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Comparison of Compound DC Motors and Their Characteristics

Compound DC motors, including cumulative, differential, and compound configurations, offer unique operational features based on how the series and shunt field windings are connected. Cumulative compound motors provide improved torque characteristics but lower speed, while differential compound motor

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Switched-Capacitor Circuits in Data Converters: Fall 2014 by Professor Y. Chiu

Explore the concepts of switched-capacitor circuits in data converters through the teachings of Professor Y. Chiu during the Fall 2014 semester. Delve into topics such as continuous-time integrators, switched capacitors, discrete-time integrators, and shunt-type vs. series-type capacitors in a compr

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Understanding the Pentose Phosphate Pathway in Metabolism

The Pentose Phosphate Pathway, also known as the Hexose Monophosphate shunt, is an alternative route for glucose metabolism that plays a crucial role in NADPH synthesis, fatty acid production, antioxidant activity, and nucleotide formation. This pathway involves oxidative and non-oxidative phases, r

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Overview of Unified Power Flow Controller (UPFC) in Power Systems

A Unified Power Flow Controller (UPFC) is a combination of a Static Synchronous Compensator (STATCOM) and a Static Synchronous Series Compensator (SSSC) interconnected via a common DC link. UPFC allows bidirectional flow of real power and provides concurrent real and reactive series line compensatio

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