(n.) An instrument for expanding a part; as, a urethral dilator.
Example Sentences:
(1) Intestinal dilatation seemed in all cases a response to elevated CO2 only.
(2) In the absence of atrial dilatation there was minimal stimulus for ANF secretion.
(3) Evaluation revealed tricuspid insufficiency, a massively dilated right internal jugular vein, and obstruction of the left internal jugular vein.
(4) Midtrimester abortion by the dilatation and evacuation (D&E) method has generated controversy among health care providers; many authorities insist that this procedure should be performed only by a small group of experts.
(5) DPI 201-106 (DPI) as a positive inotropic drug might be useful in treating dilated cardiomyopathy (DCM).
(6) In one of the cirrhotic patients, postmortem correlation of sonographic, angiographic, and pathological findings showed that the dilated vessels seen on sonography were cystic veins draining normally into the portal vein rather than portosystemic anastomoses.
(7) Combined SEM and TEM examination of the endothelium of compressed segments revealed "craters" and "balloons", blebs and vacuoles, swollen mitochondria, dilated granular endoplasmic reticulum, and subendothelial edema.
(8) Light microscopy of both apneics and snorers revealed mucous gland hypertrophy with ductal dilation and focal squamous metaplasia, disruption of muscle bundles by infiltrating mucous glands, focal atrophy of muscle fibers, and extensive edema of the lamina propria with vascular dilation.
(9) Myogenic constrictions and dilations was observed when IP was increased (greater than 60 cmH2O) and decreased (less than 60 cmH2O), respectively.
(10) Four hundred and twenty-five lesions were dilated in 370 patients.
(11) Most often, constrictor fibres follow the course of the pterygo-palatine nerve, when dilator fibres follow the infraorbital nerve.
(12) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
(13) Further management of the congenital cases was based on the experience that children outgrow this disorder; periodic dilatation may augment the natural process.
(14) The average size of stenosis after dilation was 32%.
(15) Computer-aided axial tomography revealed progressive development of atrophy of the left hemisphere and compensatory dilatation of the ventricles.
(16) The distinction between idiopathic dilated cardiomyopathy and myocarditis is controversial, both clinically and pathologically.
(17) In the remaining 60 patients (35 with atherosclerotic stenosis and 25 with fibromuscular dysplasia), both mean systolic and diastolic pressure fell immediately after percutaneous transluminal dilatation and remained significantly lower for a period of up to five years.
(18) The time for cervical dilatation from 7 to 10 cm and duration of the second stage of labor did not influence maternal morbidity or fetal outcome, regardless of the method of anesthesia.
(19) Histamine elicited arteriolar dilation which was blocked by metiamide suggesting the presence of H2 receptors.
(20) In 1 patient there was concomitant aneurysmal dilatation of the brachiocephalic trunk.
Dilatory
Definition:
(a.) Inclined to defer or put off what ought to be done at once; given the procrastination; delaying; procrastinating; loitering; as, a dilatory servant.
(a.) Marked by procrastination or delay; tardy; slow; sluggish; -- said of actions or measures.
Example Sentences:
(1) Alpha-receptor blockade did not change the response, while stimulation of these receptors decreased the dilatory response even in deep arterial hypoxia.
(2) The CO2 responsiveness (cerebrovascular dilatory response to increased PaCO2) at the control stage was not altered after the ganglionic blockade.
(3) The intermediate results, average (13.6%) and the bad results (3.6%) both show the same inducing factors: past history of localized dilatory manipulations, infected areas but mostly defective application of management techniques.
(4) During the superimposed stress of exercise coronary flow and myocardial oxygen consumption increased further, so that the dilatory capacity of the coronaries was exhausted at hematocrit levels between 16 and 22%.
(5) Chemical removal of the endothelium with saponin was shown to lead to abnormal coronary reactivity, eliminate dilatory and give rise to constrictive responses to ATP, acetylcholine, histamine.
(6) Intracoronary adenosine as well as the adenine nucleotides (ATP, ADP, AMP, beta, gamma-methylene-ATP, diadenosine-tetraphosphate, and polyadenylic acid) do not elicit their dilatory effects directly at the smooth muscle cells of the resistance vessel wall, but indirectly, via the endothelium.
(7) Blockade of alpha-adrenoreceptors with dihydroergotoxin makes noradrenaline to elicit dilatory responses only, their magnitude depending on the initial level of venous pressure: more obvious responses at 10-15 mm Hg, less obvious those - at 0 and 25 mm Hg.
(8) It induces a gut dilatory response and increases the levels of blood glucose, serum alkaline phosphatase and serum acid phosphatase in rabbits.
(9) The dilatory capacity of the coronary vessels, estimated from the reactive hyperemia after a 12 sec occlusion of the left circumflex coronary artery, dropped from 602% at control to 45% at lowest hematocrit levels.
(10) In dilated cardiomyopathy, there were dilatory manifestations in the coronary arteries and vessels of microcirculation along with increased volumetric density of ventricular vascularization.
(11) These results suggest the presence of H3-histaminergic dilatory receptors in the guinea pig airway.
(12) It was shown that, against the background of constrictory responses of the resistance vessels in these organs, both the constrictory and the dilatory responses of the capicitance vessels could occur or not.
(13) Based upon these observations, it is suggested that comprehensive radiographic evaluation of traumatic hematuria or suspected occult urological trauma unnecessarily may be expensive and dilatory, and that evaluation may be limited routinely to the area of maximum injury.
(14) Lowering of the Mg2+ concentration to 0.8 mM or total withdrawal of this ion from the medium failed to alter the dilatory potency of acetylcholine.
(15) This low value was not the result of a limited coronary dilatory capacity, of inadequate state of exercise training, or of a relative underperfusion of the inner layers of the left ventricle.
(16) Turkey poults grown in a hypobaric chamber at an atmospheric pressure of 592 mmHg (calculated partial pressure of oxygen: 124 mmHg; calculated altitude and O2 equivalents: 2054 m and 16.3%) on a rapid-growth diet developed a mainly right ventricular dilatory cardiomyopathy typical of the acute form of spontaneous turkey cardiomyopathy (STC).
(17) It is concluded that the functional polarity of the vascular wall of these arteries in response to alpha 2-agonists results from the release of a dilatory signal from the endothelial cells, counteracting the direct contractile activation of the adjacent smooth muscle cells by the agonists.
(18) Data on the endocrine heart--neurosecretory cells of heart, producing coronary-dilatory, metabolically active glycopeptides with physico-chemical and biological properties similar to those of previously discovered cardioactive hypothalamic neurohormones--are summarized.
(19) Noradrenalin was shown to elicit either constrictory or dilatory responses depending on the initial level of venous pressure (10-15 mm Hg or 0 and 25 mm Hg) in the capacitance vessels of the cat small intestine.
(20) In response to contractile and endothelium-dependent dilatory agonists, Mg2+ probably affects both the calcium influx into the endothelial and smooth muscle cells as well as the binding of acetylcholine to its endothelial receptor.