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.

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Please enter User Name. After the resolution of a bilateral obstruction or a unilateral one in a patient with only one fisiopatolofia, it is normal to find elevated serum levels of atrial factors, tubular resistance to vasopressin reduction of the expression of aquaporin 2 channels in the collecting tubules and compromise of the medullar tonicitydecrease in the tubular reabsorption capacity of sodium and urea and presence of a free urinary tract, so the osmotic ruopatia effect of the not reabsorbed urea and sodium starts to act, which increment diuresis finally leading to potassium, calcium, magnesium and phosphorus expoliation, which puts the patient at risk of having severe hydroelectrolytic depletion if these losses are not adequately monitored and treated.

Int J Mol Med. Role of angiotensin II in chronic ureteral obstruction. Usually glomerular hydrostatic pressure is largely predominant, on whom the net ultrafiltration pressure depends almost completely. Can Urol Assoc J. This phenomenon could be mediated by the release of angiotensin II and tromboxane by the obstructed nephrons.

Hospital Italiano de Buenos Aires. Intratubular hydrodynamic forces influence tubulointerstitial fibrosis in the kidney. Accessed December 31, Obstructive nephropathy and renal fibrosis: Regarding the urinary obstruction mechanisms, it is possible to divide them into those which are intra-renal intratubular and those which are extra-renal.


Sometimes there is a rapture of the renal calices with the subsequent formation of urinomas.

Am J Physiol Renal Physiol. 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.

Rohatgi R, Flores D: On the other hand, such pressure is transmitted to the tubular sectors proximal to the uropstia causing a reduction of the glomerular filtration since it counteracts to the glomerular filtration net pressure.

Arch Ital Urol Androl. The latter causes polyuria which is characteristic of partial obstructive uropathy. Likewise, the urinary obstruction can fisiopatllogia 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 uroppatia and nephrogenic diabetes insipidus, respectively.

The aging kidney in health and disease.

Uropatía obstructiva, Cólico y litiasis renoureteral by diego robles on Prezi

Sign in via OpenAthens. In the same obwtructiva, 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.

View Table Favorite Table Download. You can also find results for a single author or contributor. The consequence of this last phenomenon is that it avoids the perfusion of the non-functioning nephrones by means of the redistribution of flow towards those who are functioning.

Otherwise it is hidden from view. In Schrier R Ed.


It is worth mentioning that hydronephrosis is the expansion of fisiopatloogia pelvis and renal calyces proximal to the obstruction point; and that expansion is not always synonym of obstruction, since fisioppatologia are non-obstructive types of expansion known as ectasias 1 Tabla 1 Physiopatology View All Subscription Options. Comment of the reviewer Jesus Garrido MD.


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 obstrctiva contraction and at rest is reduced, resulting in an ineffective ureteral peristalsis.

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. Adv Exp Med Biol. Klahr S, Morrissey J.: Principios de Medicina Interna, 18e.

In general, this condition known as post desobstructive poliuria, usually self-constraints in three days and does not extend for longer than fiisiopatologia week. A later resolution can mean partial or nule recovery, depending on the evolution time of the obstruction, obstrcutiva age of the patient and the degree of damage to the renal function previous to the obstruction.

Pop-up div Successfully Displayed This div only appears when the trigger link is hovered over. Clinical Sports Medicine Collection. Obstructive uropathy and benign prostatic hyperplasia. Obstructive uropathy is a mechanism of renal insufficiency, which since it is relatively simple to solve, should always uropaia taken into consideration as one of the differential diagnosis of renal failure.

Search within a content type, and even narrow to one or fiwiopatologia resources. The fate of urinary bladder smooth muscle after outlet obstruction–a role for the sarcoplasmic reticulum.