40+ Posterior Urethral Valves Vs Normal Images. This regardless of the type of valve, however, all valves essentially obstruct normal bladder emptying. Posterior urethral valves (puv) are obstructive membranes that develop in the urethra (tube that drains urine from the bladder), close to the bladder.
Memoire Online Posterior Urethral Valves In Children A Review Of 28 Cases In Yaounde Cameroon Andreas Tehji Chiabi from www.memoireonline.comPosterior urethral valve disorder (puv) is a congenital defect where there are extra tissue flaps in a male's urethra that block the flow or urine. They are the most common forms of congenital urethral obstruction, with an incidence of 1 in 8,000 to 25,000 live male births (1). A posterior urethral valve is where there is tissue at the proximal end of the urethra (closest to the bladder) that causes obstruction of urine output.
Posterior urethral valves are obstructing flaps of tissue in the male urethra (the tube that carries urine from the bladder to the tip of the penis) that prevent normal urine flow from the bladder.
The valve can obstruct or block the outflow of urine through the urethra. Posterior urethral valves, also called puv, are a condition that affects only boys and is present at birth. The obstruction to the outflow of urine creates a back pressure into the bladder, ureters and up to the kidneys, causing. Early presentation, poor primary renal function, pneumothorax perinatally as well as vur bilaterally and recurrent postoperative utis carry a risk for renal function deterioration and esrd.
