What's the difference between distension and hydronephrosis?
Distension
Definition:
(n.) Same as Distention.
Example Sentences:
(1) administration of the potent short-acting opioid, fentanyl, elicited inhibition of rhythmic spontaneous reflex increases in vesical pressure (VP) evoked by urinary bladder distension.
(2) Water immersion (WI) to the neck induces prompt increases in central blood volume, central venous pressure, and atrial distension.
(3) Current methodology for the in vitro determination of aortic and large artery stiffness is reviewed and involves three approaches: (1) the estimation of distensibility by pulse wave velocity measurement; (2) the estimation of distensibility from the fractional diameter change of a given arterial segment by imaging techniques (e.g., angiography, Doppler ultrasound) against pressure change; (3) the estimation of compliance by determining volume change against pressure change in the arterial system during diastolic runoff from the Windkessel model of the circulation.
(4) Ultrastructural examination of noncartilaginous regions of the tumor demonstrated mesenchymal cells with features suggestive of cartilaginous differentiation, viz, scalloped cell membranes, sac-like distension of abundant rough endoplasmic reticulum, and a matrix containing fibrillary and finely granular material.
(5) The inferior mesenteric vein was cannulated for distension.
(6) After suspension of distension, arterial and venous flow and oxygen saturation increased beyond the quiescent level.
(7) Secondary valvular incompetence occurs from deep venous obstruction or increased venous distensibility (usually secondary to circulating estrogens).
(8) Reductions in periesophageal EMG activity during expulsion were similar before and after cervical vagotomy, which abolishes reflex relaxation of the periesophageal diaphragm following esophageal distension.
(9) The changes in the motor pattern resemble those of the intrinsically mediated 'peristaltic reflex', studied in animals, and suggest that in man the response to balloon distension may also be mediated through an intrinsic mechanism.
(10) 39 degrees C), abdominal distension and jaundice were uniformly present.
(11) However, in cases of delayed secondary scrotal surgery, or when a previous inflammatory process has existed in the scrotum, the limited scrotal distensibility may lead to further complications.
(12) Although undoubtedly release by atrial distension and effective when infused to similar concentrations, atrial distension also has other effects via neural pathways.
(13) Seven cases of capsular bag distension following capsulorhexis and phacoemulsification with posterior chamber intraocular lens insertion are presented.
(14) Pulse rate and blood pressure were not affected by the gall bladder distension.
(15) Changes in LV diastolic P-V relations may be caused by changes in myocardial distensibility and by changes in extraventricular constraint.
(16) Responses of SL-A neurons to colorectal distension were significantly greater in spinalized than in intact rats.
(17) In percutaneous transluminal coronary angioplasty, a catheter system is introduced through a systemic artery under local anesthesia to dilate a stenotic artery by controlled inflation of a distensible balloon.
(18) The patients did not have a normal increase in duodenal spike or motor activity after intestinal distension, but duodenal activity increased after stimulation with intravenous secretin.
(19) The main radiological features varied from normal findings (15% of the initial examinations) to decreased distensibility of the bowel wall, intestinal fixation, mucosal and contour abnormalities, ulceration, stenoses and fistula formation.
(20) Distension produced a transient contraction of the circular muscle on the oral side and sustained relaxation on the anal side.
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.