(n.) A narrowing of the opening or hollow of any passage, tube, or orifice; as, stenosis of the pylorus. It differs from stricture in being applied especially to diffused rather than localized contractions, and in always indicating an origin organic and not spasmodic.
Example Sentences:
(1) Graft life is even more prolonged with patch angioplasty at venous outflow stenoses or by adding a new segment of PTFE to bypass areas of venous stenosis.
(2) An axillo-axillary bypass procedure was performed in a high-risk patient with innominate arterial stenosis who had repeated episodes of transient cerebral ischemia due to decreased blood flow through the right carotid artery and reversal of blood flow through the right vertebral artery.
(3) In particular, inflammatory reaction was significantly more frequent and severe in ischemic groups than in controls, independent of the degree of coronary stenosis.
(4) None of the children in the study showed clinical symptoms of acquired subglottic stenosis before discharge from hospital, and none has been readmitted for this condition subsequently.
(5) The sensitivity of SPECT for detection of overall coronary stenosis was 79%, contrary that of treadmill exercise test was only 33% (p < 0.001).
(6) A study of the time-course of the response during aortic stenosis of 30 min duration showed early release of renin from the innervated kidney at a time (5 min) when little release occurred from the denervated one.
(7) A clear association between ischaemic heart disease, carotid artery stenosis and femoropopliteal disease was found.
(8) After early repair of congenital cardiovascular defects, such as coarctation of the aorta, late stenosis may become a problem.
(9) Autopsy revealed serious somatic diseases (stenosis of the ileum in two cases and brain tumor in one); their symptoms had been largely overlapped by those of anorexia nervosa.
(10) To evaluate the relationship between the motion pattern and degree of organic change of the anterior mitral leaflet (AML) and the features of the mitral component of the first heart sound (M1) or the opening snap (OS), 37 patients with mitral stenosis (MS) were studied by auscultation, phonocardiography and echocardiography.
(11) A patient with mitral stenosis and atrial flutter was found to have a normal diastolic closure rate (E to F slope).
(12) Even if it does not always provide the solution to a particularly delicate problem, which is often of vital importance, it provides data which, modifiable and better used, should provide an adequate notion of the anatomical and physiopathological state in aortic stenosis.
(13) Four clinical cases of subaortic hypertrophic muscular stenosis are discussed.
(14) The plasma renin activity of the 1 day post-stenosis rats showed 65% higher activity than the sham controls with no significant change in the 30-60 days post-stenosis.
(15) Our results show that stenosis of about one-third of the original external diameter of the artery and vein of the pedicle in our model did not have any significant influence on the survival of the flap and ligation of the femoral artery distal to the branch to the flap did not produce any statistical difference in the viability of the flap.
(16) A velocity ratio of less than or equal to 0.25 alone was sensitive (92%) in detecting severe aortic stenosis.
(17) Follow-up studies using radiological methods show worse results (recurrent stones in II: 21.2%, in I: 5.8%, stenosis of EST in II: 6.1%, in I: 3.1%): Late results of EST because of papillary stenosis are still worse compared to those of choledocholithiasis.
(18) Striking features were non-atherosclerotic stenosis with negative Sudan III, seen in the ICA less than 200 mu in diameter of almost all the hearts of stages II and III rabbits.
(19) The concomitant reduction in aortic pressure and increase in heart rate following total occlusion of the portal vein were most pronounced during the first weeks after stenosis, and were probably due to diminished venous return to the heart.
(20) The average size of stenosis after dilation was 32%.
Tubular
Definition:
(a.) Having the form of a tube, or pipe; consisting of a pipe; fistular; as, a tubular snout; a tubular calyx. Also, containing, or provided with, tubes.
Example Sentences:
(1) It is concluded that during exposure to simulated microgravity early signs of osteoporosis occur in the tibial spongiosa and that changes in the spongy matter of tubular bones and vertebrae are similar and systemic.
(2) Measurement of urinary GGT levels represents a means by which proximal tubular disease in equidae could be diagnosed in its developmental stages.
(3) We studied 15 renal transplant recipients for evidence of tubular dysfunction.
(4) The role of adrenergic agents in augmenting proximal tubular salt and water flux, was studied in a preparation of freshly isolated rabbit renal proximal tubular cells in suspension.
(5) Diminished CMD was most common with AR (7 of 12) but was also seen with acute tubular necrosis (2 of 6) and cyclosporin toxicity (2 of 3).
(6) Histopathological studies confirmed that mice fed 933cu-rev died from bilateral renal cortical tubular necrosis consistent with toxic insult, perhaps due to Shiga-like toxins.
(7) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
(8) Mitochondria with tubular christae are described for the first time in such a tumour.
(9) In this study, we examined renal tubular cell handling of digoxin and ouabain using LLC-PK1 cells, a model of proximal renal tubular cells.
(10) The present results suggest that TMB-8 blocks twitches by preventing the release of Ca++ ions bound to the intracellular surface of the t-tubular membrane which is often called the store of 'trigger-calcium' ions.
(11) Tubular and colloid carcinomas were more likely to present with T1 lesions, hormone receptor positivity, and node negative status than the other histologic subtypes.
(12) Persistence of hypercalcaemia combined with an increase in tubular reabsorption of calcium in response to cellulose phosphate may be of diagnostic value in suspected primary hyperparathyroidism.
(13) Furthermore, 75% of cases of intestinal metaplasia in gastric mucosa and 30% of tubular adenomas, 50% of villous adenomas and 70% of tubulovillous adenomas in the colon co-expressed Lea and Leb antigens.
(14) This also implies that both tubular secretion and tubular reabsorption are susceptible to competition between similar substrates for a common carrier site.
(15) The blockage of the tubular system by the calcium oxalate deposits leads to a temporary reversible increase in serum urea and serum creatinine.
(16) After 35 and 43 days, spermatogenesis was complete in 99.6% of the tubular cross sections, and most tubular cross sections were in stages IV-VII of the cycle of the seminiferous epithelium.
(17) Serial sections from over a hundred such structures show that these are tubular structures and that the 'test-tube and ring-shaped' forms described in the literature are no more than profiles one expects to see when a tubular structure is sectioned.
(18) Experimental data were analysed by a 2-compartment nonlinear model that describes both tubular secretion and cellular uptake in Michaelis-Menten terms.
(19) The findings support the assumption that changes in tubular Na+ transport probably participate in the changes of tubular amino acid transport in elderly individuals.
(20) At 4 degrees C or after fixation, anti-renal tubular brush border vesicle (BBV) IgG bound diffusely to the surface of GEC and to coated pits.