What's the difference between hydronephrosis and obstruction?
Hydronephrosis
Definition:
(n.) An accumulation of urine in the pelvis of the kidney, occasioned by obstruction in the urinary passages.
Example Sentences:
(1) Similarly, it appears that acute hydronephrosis or worsening of an existing hydronephrosis has been somewhat overlooked as a possible cause of uncertain abdominal pain during pregnancy.
(2) The kidneys with obstructive hydronephrosis demonstrated a plateau of signal enhancement without decrease (-0.7% within 40 minutes).
(3) Excretory urogram revealed bilateral hydronephrosis and voiding cystogram revealed VUR on left ureter.
(4) A 68-year-old female patient was admitted for the examination of duplication of right ureter and right hydronephrosis.
(5) Patients with hydronephrosis were characterized by stage IIIB-IV (67%), and primary residual tumor size greater than 2 cm (81%).
(6) The five grades of hydronephrosis were also characterized on the basis of the histological and electron-microscopical patterns and perioperational bioptic findings.
(7) Early surgery in hydronephrosis may be indicated to salvage kidney function.
(8) And even after the disintegration of stone with ESWL, hydronephrosis remained due to ureteral stricture with small stone fragments.
(9) Both methods have a place if diversion is necessary in cases of severe hydronephrosis and decompensated ureters.
(10) A case of cerebral gigantism with hydronephrosis in a 20-month-old boy is described.
(11) To produce a chronic moderate hydronephrosis in dog, a method of partial ureteral occlusion using a specially designed polypropylene obturator was developed.
(12) IVP in both the cases of irreducible prolapse and retention of urine revealed hydroureter and hydronephrosis bilaterally.
(13) X-ray investigations showed a right renal pelvic tumor and left nonfunctioning hydronephrosis.
(14) The neoplasms of the sympathetic nerve origin produce first the displacement of kidney and then the deformation of pelvico -calyceal system with modeling signs and sometimes with hydronephrosis.
(15) In a patient with membranous nephropathy and bilateral pyeloureteral stenosis with hydronephrosis, we examined the possibility that an increase in the intratubular pressure could facilitate the passage of the Fx1A antigens to the circulation.
(16) Hydronephrosis in the rabbit kidney was made by left ureteric ligation for 1, 2, 3 and 4 weeks, followed by relief of obstruction with uretero-ureteric anastomosis.
(17) Radionuclide renal flow and imaging studies are more sensitive than nephrotomography in detecting hydronephrosis, the most common cause of unilateral renal nonvisualization, but also require some renal function to be of diagnostic value.
(18) DIP revealed a loss of bladder distensibility, and bilateral hydronephrosis and hydroureter.
(19) Giant hydronephrosis is an infrequent urological entity.
(20) We found that sonography may not readily differentiate fetuses with hydronephrosis with obstruction from those without obstruction.
Obstruction
Definition:
(n.) The act of obstructing, or state of being obstructed.
(n.) That which obstructs or impedes; an obstacle; an impediment; a hindrance.
(n.) The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death.
Example Sentences:
(1) We have previously shown that intratracheally instilled silica (quartz) produces both morphologic evidence of emphysema and small-airway changes, and functional evidence of airflow obstruction.
(2) Evaluation revealed tricuspid insufficiency, a massively dilated right internal jugular vein, and obstruction of the left internal jugular vein.
(3) A segment of vas deferens was transplanted to the contralateral deferens with the intention of improving treatment for certain cases of infertility caused by obstruction.
(4) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
(5) During the procedure, acute respiratory failure developed as a result of tracheal obstruction.
(6) Intranasal challenge of allergic subjects with the allergen to which they are sensitive rapidly produces sneezing, rhinorrhea, and airway obstruction.
(7) Delineation of the presence and anatomy of an obstructed, nonfunctioning upper-pole duplex system often requires multiple imaging techniques.
(8) Therefore, the measurement of the alpha-antitrypsin content plays the crucial part in differential diagnosis of primary (hereditary determined) and secondary (obstructive) emphysema.
(9) In 2 patients who had received cadaveric renal allograft, ureteral obstruction was detected six and one-half and five and one-half years after transplantation.
(10) Two cases are presented of bilateral ureteral obstruction and uremia due to pressure from nodes involved in disseminated lymphoma.
(11) The occurrence of episodes of desaturation during sleep in patients suffering from chronic airflow obstruction is well known.
(12) Keep it in the ground campaign Though they draw on completely different archives, leaked documents, and interviews with ex-employees, they reach the same damning conclusion: Exxon knew all that there was to know about climate change decades ago, and instead of alerting the rest of us denied the science and obstructed the politics of global warming.
(13) Tubal obstruction could be demonstrated in only one of these patients.
(14) Schistosomal obstructive uropathy was studied by clinical, laboratory epidemiologic and pathologic analysis in 155 Egyptian patients treated surgically.
(15) For obstruction of greater than or equal to 50% of the pulmonary vascular cross-sectional area and pulmonary hypertension thrombolytic therapy should be given and insertion of an inferior caval filter can be considered.
(16) Regression of the tumor occurred during an episode of mechanical small bowel obstruction.
(17) Comparison with 99Tc-pyrophosphate uptake in infarcted dog heart, induced by selective obstruction of a coronary artery, suggest that the 111In-labelled F(ab')2 localizes specifically in infarcted myocardium only.
(18) In case of biliary and pancreatic duct obstruction with pure pancreatic reflux, both oedema and inflammatory infiltrations were evident, whereas, in the presence of biliary reflux too, more serious histological features were detected.
(19) We recently treated a patient in whom HPVG was caused by intestinal pseudo-obstruction.
(20) In patients with acute exacerbations of chronic obstructive pulmonary disease, although either sympathomimetic or anticholinergic therapy provides bronchodilatation, no further benefit could be demonstrated from combination therapy.