XIX UROPATIA OBSTRUCTIVA SUPRAVESICAL XX . La patología obstructiva del aparato urinario inferior, por la causa que sea, es otro. Pérdida del funcionamiento normal de la vejiga provocada por alteración de la inervación vesical que origina un trastorno en el fenómeno de. Uropatía obstructiva, Cólico y litiasis renoureteral. Uropatia obstructiva. Fisiopatologia Colico renoureteral. El cólico nefrítico (CN) es la.
|Country:||Trinidad & Tobago|
|Published (Last):||20 July 2009|
|PDF File Size:||3.47 Mb|
|ePub File Size:||13.23 Mb|
|Price:||Free* [*Free Regsitration Required]|
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.
You can also find results for a single author or contributor.
Search within a content type, and even narrow to one or more resources. Hospital Italiano de Buenos Aires. In the case of severe and prolonged urinary obstructions, the renal parenchyma iropatia reduced to a thin ring of atrophic tissue mainly as a consequence of the ischemia suffered obstructlva its continuous hyperfusion. Obstructive uropathy is a mechanism of renal insufficiency, which since it is relatively simple to solve, should always be taken into consideration as one of the differential diagnosis of renal failure.
Could it be a predictor for bladder contractility? Obstructive nephropathy and renal fibrosis: Comment of the reviewer Jesus Garrido MD. 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 this sense, it should be taken into consideration that the glomerular filtration is the result of a game of pressures which are established in the glomerular capillaries and the Bowman capsule, where in favor of the filtration we find the hydrostatic pressure of the capillary very important and obsttuctiva oncotic pressure of the Bowman capsule minimumwhile against it we find the oncotic pressure of the capillary considerable and fisiopatoogia hydrostatic pressure of the Bowman capsule minimum.
Adv Exp Med Biol. Partial outlet obstruction in rabbits: The latter can be subdivided into those which have intrinsic and extrinsic causes to the urinary tract View All Subscription Options.
This phenomenon could be mediated by the release of angiotensin II and tromboxane by the obstructed nephrons.
Intratubular hydrodynamic forces fisiopxtologia tubulointerstitial fibrosis in the kidney. Am J Physiol Renal Physiol ; View Table Favorite Table Download.
Uropatía Obstructiva Baja by Felipe Reyes on Prezi
Servicio de ayuda de la revista. It is worth mentioning that hydronephrosis is the expansion of the pelvis and renal calyces uropatua to the obstruction point; and obsfructiva expansion is not always synonym of obstruction, since there are non-obstructive types of expansion known as ectasias 1 Tabla 1 Physiopatology Received, October 3, Obstructive uropathy and benign prostatic hyperplasia.
J Clin Invest ; Pop-up div Successfully Displayed This div only appears when the trigger link is hovered over. Likewise, the urinary obstruction can lead to a dysfunction of the distal nephron sectors resistance to aldosterone and vasopresinmaking it difficult 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.
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.
In the case of intratubular obstructions uric acid, pigments, etc. Klahr S, Morrissey J.: Uroptaia 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. Am J Physiol Renal Physiol. It is worth mentioning that hydronephrosis is the expansion of the pelvis and renal calyces proximal to the obstruction point; and that expansion is not always synonym of obstruction, since there are non-obstructive types of expansion known as ectasias 1 Tabla 1.
Accessed December 31, In Schrier R Ed. Use this site remotely Bookmark your favorite content Track your self-assessment progress and more!
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.
Sign in via OpenAthens. The aging kidney in health and disease. 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.
On the other hand, such pressure is transmitted to the tubular sectors proximal to the risiopatologia causing a reduction of the glomerular filtration since it counteracts to the glomerular filtration net pressure. Otherwise it is hidden from view.
There was a problem providing the content you requested
Factors determining the amount of residual urine in men with bladder outlet obstruction: Nephron Exp Nephrol ; Chevalier RL and Cachat F. The role of bone morphogenic protein-7 and hepatocyte growth factor.
Arch Ital Urol Androl.
Universidad Peruana Cayetano Heredia. Nevertheless, if the obstruction is sustained in time, it leads to intrarenal vasoconstriction with the subsequent reduction in the glomerular blood flow. Role of angiotensin II in chronic ureteral obstruction. In general, this condition known as post desobstructive poliuria, usually self-constraints in three days and does not extend for longer than a week.
Transurethral prostate resection in patients with hypocontractile detrusor–what is the predictive value of ultrastructural detrusor changes? Curr Opin Nephrol Hypertens ; Regarding the urinary obstruction mechanisms, it is possible to divide them into those which are intra-renal intratubular and those which are extra-renal.
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.