Akademik

Blockage, clogging, or impeded flow, e.g., by occlusion or stenosis. [L. obstructio]

- closed loop o. o. of a segment of intestine either rotated on a fixed point (volvulus) or herniated through a fibrous opening (as under an adhesion or into a hernia); frequently associated with impaired perfusion ultimately resulting in gangrene.

- ureteropelvic junction o. an impediment to drainage of urine from kidney usually due to partial or intermittent blockage of renal collecting system at the junction of renal pelvis and ureter.

- ureterovesical o. o. of the lower ureter at its entrance into the bladder.

ob·struc·tion əb-'strək-shən, äb- n

1 a) an act of obstructing

b) a condition of being clogged or blocked <intestinal \obstruction>

2) something that obstructs <dislodge an airway \obstruction>