Seifter J.L. Seifter, Julian cción de vías urinarias. INTRODUCCIÓN; ETIOLOGÍA; MANIFESTACIONES CLÍNICAS Y FISIOPATOLOGÍA; DIAGNÓSTICO Asimismo, la uropatía obstructiva quizá sea resultado de una neoplasia. Existen pocos datos o signos clinicos que puedan orientar al diagnostico de RVU. Este se basa en la frecuencia de los hallazgos de este. Pérdida del funcionamiento normal de la vejiga provocada por alteración de la inervación vesical que origina un trastorno en el fenómeno de.

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You can also find results for a single author or contributor. Role of angiotensin II in chronic ureteral obstruction.


Search within a content type, and even narrow to one or more resources. Obstructive uropathy and benign prostatic hyperplasia. The fate of urinary bladder smooth muscle after outlet obstruction–a role for the sarcoplasmic reticulum. Independently of the place where the urinary obstruction happens, and from this moment, a series of events start to happen, which if they are not corrected can lead, in time, to irreversible renal damage and tubular atrophy.

The obstruction of the urinary flow can take place inside the renal tubules as well as iropatia any other obstructjva of the urinary tract renal pelvis, ureter, bladder and urethra. Otherwise it is hidden from view. Nevertheless, if the obstruction is sustained in time, it leads to intrarenal vasoconstriction with the subsequent reduction in the glomerular blood flow. Curr Opin Nephrol Hypertens ; View Table Favorite Table Download.


Klahr S, Morrissey J.: Received, October 3, A later resolution can mean partial or nule recovery, depending on the evolution time of the obstruction, the age of the patient and the degree of damage to the renal function previous to the obstruction.

The aging kidney in health and disease. Transurethral prostate resection in patients with hypocontractile detrusor–what is the predictive value of ultrastructural detrusor changes? There are many renal dysfunction inducing mechanisms involved in this entity: Sign in via OpenAthens.

Obstructive nephropathy can also lead to hypertension vasoconstriction-hypervolemiahyperkalemia, metabolic acidosis aldosterone resistancediabetes insipidus vasopressine resistance.

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Obstrucción de vías urinarias | Harrison. Principios de Medicina Interna, 18e | McGraw-Hill Medical

In the case of intratubular obstructions uric acid, pigments, etc. In the case of severe and prolonged urinary obstructions, the renal parenchyma is reduced to a thin ring of atrophic tissue mainly as a consequence of the ischemia suffered by its continuous hyperfusion. Chevalier RL and Cachat F. Regarding the urinary obstruction mechanisms, it is possible to divide them into those which are intra-renal intratubular and those which are extra-renal.

Servicio de ayuda de la revista. Am J Physiol Renal Physiol ; Obstructive uropathy is a mechanism of renal insufficiency, which since it is relatively simple to solve, should ce be taken into consideration as one of the differential diagnosis fisjopatologia renal failure.


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Electron J Biomed ; Musso el al. OBSTRUCTIVE NEPHROPATHY

Universidad Peruana Cayetano Heredia. Rohatgi R, Flores D: If your institution subscribes to this resource, and you don’t have a MyAccess Profile, please contact your library’s reference desk for information on how to gain access to this resource from off-campus.

After an obstruction has settled, there is an increase in the pressure corresponding to its proximal section, due to the effect of the net glomerular filtration pressure, which leads to an increase in intraluminal pressure, that carries a progressive expansion of the ureter as a compensating mechanism ley de la Lapacethus the significant difference of pressure between the ureter in a state of contraction and at rest is reduced, resulting in an ineffective ureteral peristalsis.

Published, October 8, The latter causes polyuria which is characteristic of partial obstructive uropathy. An uro-obstruction can also cause hypertension which at its first stage in general is mediated by the activation of the renine-angiotensin-aldosterone system vasoconstriction and later, if a total obstruction occurs it is mainly due to water and salt retention hypervolemia.