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Related Concept Videos

Continuing Care01:25

Continuing Care

2.0K
Continuing care describes the variety of health, personal, and social services provided over a prolonged period. The need for continuing care is increasing because people are living longer. Many people do not have families or others to care for them. Continuing care is mainly for patients who are disabled, functionally dependent, or suffering from a terminal disease. It is available within institutional settings or in homes. Examples include nursing centers or facilities, assisted living,...
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Continuity of a Function01:23

Continuity of a Function

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A function is continuous at a point a if three conditions are met: the function is defined at a, the limit of the function as x approaches a exists, and this limit equals the function’s value. Mathematically, this is written asThis definition ensures the graph of the function does not exhibit any breaks, holes, or jumps at that point. Discontinuities occur when any of these conditions fail. A removable discontinuity exists when the two-sided limit exists but the function is either...
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Continuity Equation01:28

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The continuity equation asserts that the mass flow rate must remain constant for a steady flow of an incompressible fluid within a confined system. This principle applies to systems where fluid passes through varying cross-sectional areas, such as nozzles, syringes, and pipes.
The mass flow rate is expressed as:
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Continuity Equation01:20

Continuity Equation

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The total amount of current flowing per unit cross-sectional area is called the current density. Hence, the current passing through a cross-sectional area can be written as the surface integral of the current density.
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Equation of Continuity01:12

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Fluid motion is represented by either velocity vectors or streamlines. The volume of a fluid flowing past a given location through an area during a period of time is called the flow rate Q, or more precisely, the volume flow rate. Flow rate and velocity are related—for instance, a river has a greater flow rate if the velocity of the water in it is greater. However, the flow rate also depends on the size and shape of the river. The relationship between flow rate (Q) and average speed (v)...
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Continuous Charge Distributions01:17

Continuous Charge Distributions

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Imagine a bucket of water. It contains many molecules, of the order of 1026 molecules. Thus, although it contains discrete elements (molecules) at the microscopic level, macroscopically, it can be considered continuous. Small volume elements of water, infinitesimal compared to the bulk of the bucket's volume, still contain many molecules. Under this framework, quantized matter is approximated as continuous for practical purposes.
The electric charge can also be subjected to an analogical...
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Gastroduodenal Surgery: A Persistent and Continuing Challenge.

Patrick D Melmer, Trenton Banks, Sharon Holmes

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    Summary
    This summary is machine-generated.

    Despite fewer surgeries for gastroduodenal disease, emergency operations for perforated and bleeding peptic ulcer disease (PUD) remain significant. These critically ill patients require specialized surgical management for optimal outcomes.

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    Area of Science:

    • Gastroenterology
    • Surgical Oncology
    • Epidemiology

    Background:

    • Surgical treatment for gastroduodenal diseases has declined over 50 years due to advances in medical management.
    • Perforated and bleeding peptic ulcer disease (PUD) still necessitate emergency surgical interventions.
    • Characterizing critically ill surgical patients with gastroduodenal disease is crucial for improving care.

    Purpose of the Study:

    • To characterize critically ill patients undergoing emergent surgical treatment for gastroduodenal disease at a single institution.
    • To analyze the prevalence and types of complications requiring surgery for PUD.

    Main Methods:

    • Retrospective, single-center, consecutive cohort study.
    • Utilized the National Surgical Quality Improvement Program database.
    • Included all patients requiring emergent surgical intervention over a two-year period.

    Main Results:

    • Out of 423 patients, 33 (7.8%) underwent surgery for PUD complications.
    • The majority of PUD surgeries were for perforation (19 patients) or hemorrhage (9 patients).
    • A small number of gastrectomies were performed for refractory ulcers or gastric neoplasms.

    Conclusions:

    • A significant number of patients present with life-threatening PUD complications requiring surgery, despite the global decline in PUD.
    • These critically ill patients necessitate meticulous surgical and medical management.
    • Understanding the characteristics of this patient population is key to optimizing treatment strategies and outcomes.