FISIOPATOLOGIA DE LA UROPATIA OBSTRUCTIVA PDF

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

The latter causes polyuria which is characteristic of partial obstructive uropathy. Obstructive uropathy and benign prostatic hyperplasia. Use this site remotely Bookmark your favorite content Track your self-assessment progress and more! Usually glomerular hydrostatic pressure is largely predominant, on whom the net ultrafiltration pressure depends almost completely. Regarding the urinary obstruction mechanisms, it is possible to divide them into those which are intra-renal intratubular and those which are extra-renal.

It is also stated that the damaged tubules release a chemotactic substance which would attract monocytes and macrophagues, which would infiltrate the renal parenchyma, damaging it by means of the local release of proteases and free radicals. Accessed December 31, Published, October 8, View All Subscription Options. Universidad Peruana Cayetano Heredia.

This site uses cookies to provide, maintain and improve your experience. Intratubular hydrodynamic forces influence tubulointerstitial fibrosis in the kidney. Transurethral prostate resection in patients with hypocontractile detrusor–what is the predictive value of ultrastructural detrusor changes? 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.

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Received, October 3, 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. In the same way, when such obstruction is located in any point between the renal pelvis and the distal end of the urethra, it receives the more specific name of obstructive uropathy.

REVISTA MEXICANA DE UROLOGÍA

The obstruction of the urinary flow can take place inside the renal tubules as well as in any other segment of the urinary tract renal pelvis, ureter, bladder and urethra.

Fisiopatolotia of angiotensin II in chronic ureteral obstruction. The fate of urinary bladder smooth muscle after outlet obstruction–a role for the sarcoplasmic reticulum. About MyAccess 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.

In Schrier R Ed. The effect of bladder outlet obstruction treatment on ultrasound-determined bladder wall thickness.

View Table Favorite Table Download. 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.

Arch Ital Urol Androl. Likewise, the urinary obstruction can lead to a dysfunction of the distal nephron sectors resistance to aldosterone and vasopresinmaking it fiaiopatologia for the local secretion of potassium and protons, as well as reducing the water reabsorption, thus facilitating the development of hyperkalemia, hyperchloremic metabolic acidosis and nephrogenic diabetes insipidus, respectively.

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Nevertheless, if the obstruction is sustained in time, it leads to intrarenal vasoconstriction with the subsequent reduction in the glomerular blood flow. Search within a content type, and even narrow to one or more resources.

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Sign in via Shibboleth. This div only appears when the trigger link is hovered over. Data obtained from tests performed in animal models and information obtained from the evolution of clinical cases, suggest that the resolution of a complete obstruction before 8 weeks after it has settled can achieve a total recovery of the glomerular filtration.

Obstruction-induced alterations within the urinary bladder and their role in the pathophysiology of lower urinary tract symptomatology. Increase in detrusor wall thickness indicates bladder outlet obstruction BOO in men. Am J Physiol Renal Physiol ; Principios de Medicina Interna, 18e. In conclusion, since obstructive nephropathy is a potentially reversible cause of renal dysfunction, it should always be taken into account among the differential diagnosis of renal failure inducing mechanisms.

Hospital Italiano de Buenos Aires. Search Advanced search allows to you precisely focus your query. Can Urol Assoc J. J Clin Invest ; Nephron Exp Nephrol ; Adv Exp Med Biol. On the other hand, such pressure is transmitted to the tubular sectors proximal to the obstruction causing a reduction of the glomerular filtration since it counteracts to the glomerular filtration net pressure.

Chevalier RL and Cachat F. Decrease of ultrasound estimated bladder weight during tamsulosin treatment in patients benign prostatic enlargement.

In the case of intratubular obstructions uric acid, pigments, etc. Comment of the reviewer Jesus Garrido MD.