Hip Arthrography Under General Anesthesia to Refine the Definition of Hinge Abduction in Legg-Calvé-Perthes Disease

The goals of sedation and general anesthesia in the ambulatory patient are: (1) patient welfare; (2) control of patient behavior; (3) production of positive psychological response to treatment; and (4) return to pretreatment level of consciousness by time of discharge. DEFINITION OF TERMS Terms used in this document are defined as follows: Pediatric patients: Includes all patients who are infants, children, and adolescents less than age of majority. Must or shall: Indicates an imperative need and/or duty; as essential or indispensable; mandatory. Should: Indicates the recommended manner of obtaining the standard; highly desirable. May or could: Indicates freedom or liberty to follow a suggested or reasonable alternative. Conscious sedation: Conscious sedation is a minimally depressed level of consciousness that retains the patient's ability to maintain a patent airway independently and continuously, and respond appropriately to physical stimulation and/or verbal command, eg, "Open your eyes." For the very young or handicapped individual, incapable of the usually expected verbal responses, a minimally depressed level of consciousness for that individual should be maintained. The caveat that loss of consciousness should be unlikely is a particularly important part of the definition of conscious sedation, and the drugs and techniques used should carry a margin of safety wide enough to render unintended loss of consciousness unlikely. Deep sedation: Deep sedation is a controlled state of depressed consciousness or unconsciousness from which the patient is not easily aroused, which may be accompanied by a partial or complete loss of protective reflexes, including the ability to maintain a patent airway independently and respond purposefully to physical stimulation or verbal command.

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Role of hip arthrography in congenital dislocation of the hip and Legg-Calve-Perthes disease

Journal of the Korean Radiological Society ◽

10.3348/jkrs.1990.26.1.160 ◽

1990 ◽

Vol 26 (1) ◽

pp. 160

Author(s):

C J Song ◽

C G Park ◽

C H Park ◽

J S Cho ◽

J C Kim ◽

...

Keyword(s):

Perthes Disease ◽

Congenital Dislocation ◽

Hip Arthrography ◽

Dislocation Of The Hip

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Incidence of Intraoperative Hypotension as a Function of the Chosen Definition

Anesthesiology ◽

10.1097/01.anes.0000270724.40897.8e ◽

2007 ◽

Vol 107 (2) ◽

pp. 213-220 ◽

Cited By ~ 265

Author(s):

Jilles B. Bijker ◽

Wilton A. van Klei ◽

Teus H. Kappen ◽

Leo van Wolfswinkel ◽

Karel G. M. Moons ◽

...

Keyword(s):

Blood Pressure ◽

Systolic Blood Pressure ◽

General Anesthesia ◽

Adverse Outcomes ◽

Perioperative Outcomes ◽

Common Side Effect ◽

Threshold Values ◽

Intraoperative Hypotension ◽

Cumulative Incidence Curve ◽

Definition Of

Background Intraoperative hypotension (IOH) is a common side effect of general anesthesia and has been reported to be associated with adverse perioperative outcomes. These associations were found using different definitions for IOH. It is unknown whether the incidences of IOH found with those different definitions are comparable. The authors aimed to describe the relation between the chosen definition and incidence of IOH. Methods First, a systematic literature search was performed to identify recent definitions of IOH that have been used in the anesthesia literature. Subsequently, these definitions were applied to a cohort of 15,509 consecutive adult patients undergoing noncardiac surgery during general anesthesia. The incidence of IOH according to the different threshold values was calculated, and the effect of a defined minimal duration of a hypotensive episode was studied. Results Many different definitions of IOH were found. When applied to a cohort of patients, these different definitions resulted in different IOH incidences. Any episode of systolic blood pressure below 80 mmHg was found in 41% of the patients, whereas 93% of the patients had at least one episode of systolic blood pressure more than 20% below baseline. Both definitions are frequently used in the literature. The relation between threshold values from the literature and IOH incidence shows an S-shaped cumulative incidence curve, with occurrence frequencies of IOH varying from 5% to 99%. Conclusions There is no widely accepted definition of IOH. With varying definitions, many different incidences can be reproduced. This might have implications for previously described associations between IOH and adverse outcomes.

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Towards a definition of Ancient Rare Diseases (ARD): Presenting a complex case of probable Legg-Calvé-Perthes Disease from the North Caucasian Bronze Age (2200-1650 cal BCE)

International Journal of Paleopathology ◽

10.1016/j.ijpp.2020.11.004 ◽

2021 ◽

Vol 32 ◽

pp. 61-73

Author(s):

Katharina Fuchs ◽

Biaslan Ch. Atabiev ◽

Florian Witzmann ◽

Julia Gresky

Keyword(s):

Bronze Age ◽

Rare Diseases ◽

Perthes Disease ◽

Complex Case ◽

The North ◽

Definition Of

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Introductory paper

Symposium - International Astronomical Union ◽

10.1017/s0074180900053031 ◽

1966 ◽

Vol 24 ◽

pp. 3-5

Author(s):

W. W. Morgan

Keyword(s):

Line Intensity ◽

Classification Scheme ◽

Two Dimensional ◽

Spectral Classification ◽

Dimensional Array ◽

Rr Lyrae ◽

Metallic Line ◽

Introductory Paper ◽

Parameter Varying ◽

Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

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2.2. Working Group 2: Conceptual Definitions of Reference Coordinate Systems for Earth Dynamics

International Astronomical Union Colloquium ◽

10.1017/s0252921100050867 ◽

1975 ◽

Vol 26 ◽

pp. 21-26

Keyword(s):

Coordinate System ◽

Working Group ◽

General Character ◽

Coordinate Systems ◽

Reference Coordinate System ◽

Group 2 ◽

Definition Of ◽

Earth Dynamics

An ideal definition of a reference coordinate system should meet the following general requirements:1. It should be as conceptually simple as possible, so its philosophy is well understood by the users.2. It should imply as few physical assumptions as possible. Wherever they are necessary, such assumptions should be of a very general character and, in particular, they should not be dependent upon astronomical and geophysical detailed theories.3. It should suggest a materialization that is dynamically stable and is accessible to observations with the required accuracy.

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Symbiotic Stars at Optical, Infrared and Radio Wavelengths

International Astronomical Union Colloquium ◽

10.1017/s025292110007336x ◽

1979 ◽

Vol 46 ◽

pp. 125-149 ◽

Cited By ~ 3

Author(s):

David A. Allen

Keyword(s):

Temperature Regime ◽

Type Star ◽

Stellar Systems ◽

Symbiotic Stars ◽

Lower Excitation ◽

Definition Of ◽

Original Type

No paper of this nature should begin without a definition of symbiotic stars. It was Paul Merrill who, borrowing on his botanical background, coined the termsymbioticto describe apparently single stellar systems which combine the TiO absorption of M giants (temperature regime ≲ 3500 K) with He II emission (temperature regime ≳ 100,000 K). He and Milton Humason had in 1932 first drawn attention to three such stars: AX Per, CI Cyg and RW Hya. At the conclusion of the Mount Wilson Ha emission survey nearly a dozen had been identified, and Z And had become their type star. The numbers slowly grew, as much because the definition widened to include lower-excitation specimens as because new examples of the original type were found. In 1970 Wackerling listed 30; this was the last compendium of symbiotic stars published.

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Immunoferritin localization of intracellular antigens in positively stained frozen sections

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010008170x ◽

1978 ◽

Vol 36 (2) ◽

pp. 168-169

Author(s):

K. T. Tokuyasu

Keyword(s):

Surface Tension ◽

Water Surface ◽

Thin Layers ◽

The Other ◽

Positive Staining ◽

Frozen Sections ◽

The Past ◽

Ultrathin Frozen Sections ◽

Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

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