dilatation

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dilatation

 [dil″ah-ta´shun]
1. the condition, as of an orifice or tubular structure, of being dilated or stretched beyond normal dimensions by medications or instrumentation.
2. the act of dilating or stretching.
dilatation of the heart compensatory enlargement of the cavities of the heart, with thinning of the walls.

di·la·tion

(dī-lā'shŭn),
1. Physiologic or artificial enlargement of a hollow structure or opening.
2. The act of stretching or enlarging an opening or the lumen of a hollow structure.
Synonym(s): dilatation
[L. dilato, pp. dilatatus, to spread out, dilate]

dilatation

/dil·a·ta·tion/ (dil″ah-ta´shun)
1. the condition, as of an orifice or tubular structure, of being dilated or stretched beyond normal dimensions.
2. the act of dilating or stretching.

dilatation of the heart  compensatory enlargement of the cavities of the heart, with thinning of its walls.
segmental dilatation  dilatation of a portion of a tubular structure, such as the intestine, the segments on either side of the dilatation being of normal caliber.

dilatation

(dĭl′ə-tā′shən, dī′lə-)
n.
Dilation.

dil′a·ta′tion·al adj.

dilatation

See dilation.

dilatation

Widening. This may be a normal process or may imply stretching beyond normal dimensions, either as part of a disease process or as a deliberate surgical act.

dilatation

pathological or artificial enlargement of a blood vessel

di·la·tion

, dilatation (dī-lā'shŭn, dil'ă-tā'shŭn)
1. Physiologic or artificial enlargement of a hollow structure or opening.
2. Stretching an opening of a hollow structure.

dilatation, dilation

1. the condition, as of an orifice or tubular structure, of being dilated or stretched beyond normal dimensions.
2. the act of dilating or stretching. See under anatomical location, e.g. esophageal, cardiac, intestinal, gastric, pupillary.

dilatation-torsion syndrome
see gastric dilatation-volvulus.
References in periodicals archive ?
The two types of treatment modalities are used including conservative dilatation and surgical approach according to aetiology and site and extent of involvement.
Keywords: Brain abscess, children, esophageal dilatation
However, their potential role still exists in those with early disease, in elderly patients unsuitable for surgery or dilatation and in whom Botulinum toxin injections have failed.
Thus in this case, the kinetic energy in the longitudinal direction is carried by the distortion part of the deformation, while the dilatation part, which carries the rest-mass energy, is not present as the mass is 0.
A prospective randomised study performed at our hospital during the period January 1991--January 1994 compared filiform dilatation (n=106 patients) with optical urethrotomy (n=104) as treatment for male urethral strictures.
The thermal compensator has a double role: one to lead electric current and second to assure of central core an axial displacement, such as different thermal dilatations of component elements
Group 1 Group 2 (old) (young) (n=11) (n=19) Total number of dilatations 22 31 Median (range) per patient 2 (1-3) 2 (1-3) Dilatations yielding satisfactory swallowing after 1 month 11(**) 28 Median duration of satisfactory swallowing after dilatation in weeks (range) 12 (1-104)(**) 52 (12-182) Patients with satisfactory long-term swallowing 6 16 Patients with no complaints about swallowing 1(**) 12
The dilatation relation of (8) can also be expressed as
A dilatation corresponds to a change of volume of the spacetime continuum without a change of shape while a distortion corresponds to a change ofshape ofthe spacetime continuum without a change in volume.
It is clearly established that heart valve companies need a consistently dependable balloon that is indicated for dilatation in BAVI and TAVI, and we have the state-of-the-art solution.