What's the difference between coarctation and pressure?
Coarctation
Definition:
(n.) Confinement to a narrow space.
(n.) Pressure; that which presses.
(n.) A stricture or narrowing, as of a canal, cavity, or orifice.
Example Sentences:
(1) Comparison of developmental series of D. merriami and T. bottae revealed that the decline of the artery in the latter species is preceded by a greater degree of arterial coarctation, or narrowing, as it passes though the developing stapes.
(2) After early repair of congenital cardiovascular defects, such as coarctation of the aorta, late stenosis may become a problem.
(3) Long prosthetic graft was anastomosed in an end-to-side fashion to bypass the coarctated aorta.
(4) Twenty-four patients had uncomplicated ventricular septal defect, 2 had single ventricle, 5 had transposition of the great arteries, 5 had atrioventricular canal defects, and 2 had coarctation of the aorta and ventricular septal defect.
(5) Acute aortic dissection, aortic aneurysm formation and aortic valve disease complicate the surgical treatment of adult coarctation and hypertension may persist in as many as 50% of patients.
(6) The diagnosis based on physical ECG and X-rays was correct in only 42% of cases, and was most accurate in children with transposition of the great arteries, syndrome of Fallot, coarctation of the aorta and ventricular septal defects.
(7) The principal long-term complication is recurrence of the coarctation resulting from the absence of growth at the anastomosis.
(8) In the seven remaining patients, coarctation was excluded.
(9) Associated lesions were coarctation (n = 2) and patent ductus arteriosus (n = 2).
(10) In the remainder a wide spectrum of abnormalities was found such as prolapse of the mitral valve (in 13.6%), bicuspid aortal valve with a medium regurgitation (4.5%), hypoplasia of the coronary cusp of the aortal valve (4.5%), dilatation of the ascending aorta with a residual significant stenosis at the site after operation of coarctation of the thoracic aorta (4.5%), subaortal defect of the interventricular septum (4.5%) and slight left ventricular hypertrophy in patients with arterial hypertension (9.1%).
(11) We report an unusual case of association of aortic coarctation with a calcified thrombus at the site of coarctation.
(12) These were estimated 1. for stepwise aortic coarctation and 2. for aortic nerve stimulation under pressure clamp conditions.
(13) Five cases of coarctation were overlooked on the prenatal echocardiogram but these were found at follow up of the infants.
(14) Through our experience and a review, we have observed that neonates requiring coarctation repair, pulmonary artery banding, and patent ductus ligation are at high risk of expiring before reaching an age at which a difficult total repair is feasible.
(15) Values were expressed as the ratio between the kidney with the lower uptake and the contralateral one in 34 patients and as the ratio of the kidney counts to the injected dose in five patients with solitary kidneys, aortic coarctation, or both.
(16) An unusual post-coarctation mycotic aortic aneurysm that had eroded into the left main stem bronchus was identified and replaced with a Dacron graft.
(17) The post-mortem examination showed a lesion of the intima and media at the coarctation site, and it seemed that the adventitia alone was what prevented rupture of the vessel.
(18) In addition, aortic disorders such as acute dissection, coarctation and atherosclerotic disease could be delineated.
(19) Few data exist which address the significance of the Doppler gradient across a residual narrowing in older children who have had a coarctation repaired.
(20) The authors studied the immediate and late-term results of surgical treatment of aortic coarctation in patients after the age of 35 years.
Pressure
Definition:
(n.) The act of pressing, or the condition of being pressed; compression; a squeezing; a crushing; as, a pressure of the hand.
(n.) A contrasting force or impulse of any kind; as, the pressure of poverty; the pressure of taxes; the pressure of motives on the mind; the pressure of civilization.
(n.) Affliction; distress; grievance.
(n.) Urgency; as, the pressure of business.
(n.) Impression; stamp; character impressed.
(n.) The action of a force against some obstacle or opposing force; a force in the nature of a thrust, distributed over a surface, often estimated with reference to the upon a unit's area.
Example Sentences:
(1) Circuit weight training does not exacerbate resting or exercise blood pressure and may have beneficial effects.
(2) There was a weak relation between AER and both systolic and diastolic blood pressures.
(3) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
(4) Steady-state values of cell, glucose, and cellulase concentration oxygen tension, and outlet gas oxygen partial pressure were recorded.
(5) We conclude that chronic emphysema produced in dogs by aerosol administration of papain results in elevated pulmonary artery pressure, which is characterized pathologically by medial hypertrophy of small pulmonary arteries.
(6) It is concluded that acute renal denervation augments the pressure diuresis that follows carotid occlusion.
(7) Both lymph flow from cannulated pancreatico-duodenal lymphatics and intralymphatic pressure in the non-transected ones increased significantly.
(8) Calcium alginate dressings have been used in the treatment of pressure ulcers and leg ulcers.
(9) administration of the potent short-acting opioid, fentanyl, elicited inhibition of rhythmic spontaneous reflex increases in vesical pressure (VP) evoked by urinary bladder distension.
(10) On removal of selective pressure, the His+ phenotype was lost more readily than the Ura+ Trp+ markers, with a corresponding decrease in plasmid copy number.
(11) The intrauterine mean active pressure (MAP) in the nulliparous group was 1.51 kPa (SD 0.45) in the first stage and 2.71 kPa (SD 0.77) in the second stage.
(12) The main finding of this study is that diabetic adolescents with a high erythrocyte Na,Li countertransport rate have an arterial pressure significantly higher than patients with normal Na,Li countertransport fluxes.
(13) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
(14) These findings suggest that clonidine transdermal disks lower blood pressure in hypertensive patients, but produce local skin lesions and general side effects.
(15) Diltiazem monotherapy effectively lowered blood pressure in 60% of patients at 8 weeks.
(16) Completeness of isolation of the coronary and systemic circulations was shown by the marked difference in appearance times between the reflex hypotensive responses from catecholamine injections into the isolated coronary circulation and the direct hypertensive response from a similar injection when the circulations were connected as well as by the marked difference between the pressure pulses recorded simultaneously on both sides of the aortic balloon separating the two circulations.4.
(17) At the same time the duodenum can be isolated from the stomach and maintained under constant stimulus by a continual infusion at regulated pressure, volume and temperature into the distal cannula.
(18) The 40 degrees C heating induced an increase in systolic, diastolic, average and pulse pressure at rectal temperature raised to 40 degrees C. Further growth of the body temperature was accompanied by a decrease in the above parameters.
(19) Nicardipine lowered systolic and diastolic blood pressure to normal, plasma aldosterone was reduced and serum potassium levels were increased.
(20) Subjects then rested supine until 10.00 h when blood was again taken, and blood pressure recorded.